JP2021067077A - Runoff preventative device - Google Patents

Abstract

To provide a runoff preventative device that can immediately prevent placed objects on a quay wall of a port from running off upon occurrence of a tidal wave.SOLUTION: A runoff preventative device 1 is provided with: an insertion pipe 54 inserted vertically movably into the inside space of a fixing pipe 52; a guard fence 2; a holding device 3; and a grip part 57 arranged on an upper end part of the insertion pipe 54, wherein a receiving pipe 12 of the guard fence 2 has a receiving pipe hole 12a passing through a pipe wall at its upper end part, the insertion pipe 54 has a first insertion pipe hole 55a arranged in its upper end part, and the holding device 3 has: an inserted member 44 holding the insertion pipe 54 at an insertion height position by being inserted into the receiving pipe hole 12a and the first insertion pipe hole 55a when the insertion pipe 54 is placed at the insertion height position; and a support part 42 attached on the receiving pipe 12 and supporting the inserted member 44 in a way the inserted member 44 is allowed to move between an insertion position where the inserted member 44 is inserted into the receiving pipe hole 12a and the first insertion pipe hole 55a and a withdrawal position where it withdraws from the receiving pipe hole 12a and the first insertion pipe hole 55a.SELECTED DRAWING: Figure 7

Description

The present invention relates to an outflow prevention device installed on a quay of a harbor to prevent an object on the quay from flowing out to the sea.

Conventionally, devices for preventing various damages caused by storm surges and flooding of rivers due to the influence of typhoons have been known. For example, Patent Document 1 below discloses a portable embankment installed on the embankment when the river is flooded.

The portable embankment disclosed in Patent Document 1 below includes a plurality of columns and a plurality of wall panels. When the river is flooded and flooding is expected, the portable embankment will be erected in a row by inserting multiple columns into multiple holes provided at regular intervals on the foundation. By attaching a wall panel between adjacent objects of a plurality of erected columns, an emergency water blocking wall is formed on the foundation, thereby preventing flooding from the river.

Japanese Unexamined Patent Publication No. 2016-23427

By the way, when a storm surge occurs, damage may occur as waves rushing from the sea get over the quay of the harbor. Specifically, there are cases where objects such as containers placed on the quay are exposed to the waves and flow out to the sea. In order to prevent this damage, for example, a plurality of holes are provided on the quay of the harbor at regular intervals by using the technique disclosed in Patent Document 1, and the plurality of holes are provided when a storm surge occurs. Preventing outflow to prevent the outflow of mounted objects on the quay to the sea by inserting multiple columns into each of them and installing wall panels between adjacent objects of the multiple columns that have been erected. It is also possible to construct a wall.

However, in this case, it is difficult to promptly prevent the outflow of the objects placed on the quay of the port when an urgent storm surge occurs. Specifically, in order to construct the outflow prevention wall, it is necessary to carry a plurality of columns from the storage location, insert them into the plurality of holes, and stand them on the quay, which is complicated. It takes a lot of time.

An object of the present invention is to provide an outflow prevention device capable of promptly preventing the outflow of an object placed on a quay of a port when a storm surge occurs.

The outflow prevention device provided by the present invention is an outflow prevention device installed on a quay of a port to prevent an object on the quay from flowing out to the sea. This outflow prevention device is movable on the quay with a fixed pipe embedded in the quay so as to extend in the vertical direction, an insertion pipe movably inserted in the space inside the fixed pipe so as to be movable up and down. A protective fence that prevents the above-mentioned figurine from flowing out when it is configured and installed at an installation position on the quay so as to extend along the sea-side edge of the quay, and the protective fence is at the installation position. One having a receiving pipe that is arranged so as to extend in the vertical direction above the fixed pipe when installed and capable of receiving the insertion pipe, and the other that is provided on the protective fence and the insertion pipe is above the fixed pipe. The insertion pipe is inserted so that the guard fence is fixed to the quay via the insertion pipe and the fixing pipe when it is arranged at the insertion height position where it protrudes into the receiving pipe and is inserted into the receiving pipe. It includes a holding device for holding at a height position, and a handle portion provided at the upper end of the insertion tube and gripped to pull the insertion tube out of the space inside the fixed tube. The receiving pipe has a receiving pipe hole penetrating the pipe wall at the upper end of the receiving pipe. The insertion tube has an insertion tube hole provided at the upper end of the insertion tube. The holding device is configured to be insertable into the receiving tube hole and the insertion tube hole, and is inserted into the receiving tube hole and the insertion tube hole when the insertion tube is arranged at the insertion height position. An insertion member that holds the insertion tube at the insertion height position, an insertion position that is attached to the receiving tube and the insertion member is inserted into the receiving tube hole, the insertion tube hole, and the receiving tube hole. It has a support portion that supports the insertion member so as to be movable between the insertion tube hole and the detachment position.

In this outflow prevention device, when a storm surge occurs, the operator pulls up the insertion pipe from the space inside the fixed pipe and inserts it into the receiving pipe of the guard fence, and while holding the insertion pipe by hand at the insertion height position, the insertion pipe is inserted. The work of inserting the insertion member of the holding device into the insertion pipe hole of the insertion pipe and the reception pipe hole of the acceptance plan and holding the insertion pipe at the insertion height position can be performed by one person, and protection is performed only by performing the work. Since the fence can be fixed on the quay to prevent the load on the quay from flowing out to the sea, it is possible to quickly prevent the load on the quay from flowing out when a storm surge occurs.

Specifically, in this outflow prevention device, the insertion pipe is movably inserted into the space inside the fixed pipe buried in the quay, and when a high tide occurs, the insertion pipe is pulled up to obtain the insertion height. Simply place it in the vertical position, insert it into the receiving pipe, and hold the insertion pipe at the insertion height position with the holding device. It can be prevented from flowing out to. For this reason, this outflow prevention device does not require a lot of time-consuming work such as transporting a plurality of columns from the storage location and standing them on the quay in order to install the conventional outflow prevention wall. In this outflow prevention device, a handle portion is provided at the upper end portion of the insertion pipe, the receiving pipe of the protective fence has a receiving pipe hole penetrating the pipe wall at the upper end portion thereof, and the insertion pipe has the upper end portion thereof. Since it has an insertion tube hole provided in the part, when the operator grasps the handle part and pulls up the insertion tube to the insertion height position to align the insertion tube hole with the receiving tube hole, the handle part and the insertion tube The hole and the receiving pipe hole are arranged close to each other. Therefore, the operator holds the insertion tube at the insertion height position by grasping the handle portion with one hand, and moves the insertion member of the holding device to the insertion position with the other hand to form the insertion tube hole and the insertion tube. The work of inserting into the receiving pipe hole can be performed. For this reason, when a storm surge occurs, the operator quickly places the insertion pipe at the insertion height position, holds the insertion pipe at the insertion height position with the holding device, and fixes the protective fence on the quay. It can be carried out. From the above, this outflow prevention device can quickly prevent the outflow of the objects placed on the harbor when a storm surge occurs.

The space inside the fixed pipe is the height during loading and unloading work that allows the loading and unloading work of cargo on the ship at the position where the insertion pipe is lower than the receiving pipe and above the fixed pipe on the quay. It is preferable to have a depth that allows the vehicle to descend to the position.

According to this configuration, when loading and unloading cargo on a ship, if the insertion member of the holding device is moved to the detaching position and detached from the insertion pipe hole and the receiving pipe hole, the insertion pipe can be unloaded during the loading and unloading operation. It can be lowered to a height position and separated from the receiving pipe of the guard fence downward, and as a result, the guard fence can be released from the fixing by the insertion pipe and the guard fence can be moved from the installation position on the quay to another place. it can. Moreover, the loading / unloading work can be prevented from being hindered by the insertion pipe at the height position during the loading / unloading work. Therefore, the cargo loading / unloading work on the ship can be smoothly performed.

The outflow prevention device was arranged at a bollard height position where the insertion pipe protrudes from the space inside the fixed pipe onto the quay to the extent that the insertion pipe can prevent the vehicle from moving toward the sea side of the insertion pipe. It is preferable to further include an insertion pipe position fixing device configured so as to be able to switch between a fixed state in which the insertion pipe is sometimes fixed at the bollard height position and a release state in which the fixing is released.

According to this configuration, in normal times when high tides do not occur and cargo is not loaded or unloaded on ships, the fixed pipes and insertion pipes of the outflow prevention device are used to drive automobiles from the quay of the port to the sea. It is possible to prevent the fall. Specifically, in normal times, the insertion pipe is projected from the inside of the fixed pipe onto the quay and placed at the bollard height position, and the insertion pipe position fixing device is switched from the released state to the fixed state to stop the insertion pipe. It can be fixed at the height position, and the insertion pipe fixed at the bollard height position can prevent the vehicle from moving to the sea side and prevent the vehicle from falling into the sea.

As described above, according to the present invention, there is provided an outflow prevention device capable of quickly preventing the outflow of an object placed on a quay of a port when a storm surge occurs.

It is a figure which looked at the state which the outflow prevention device by one Embodiment of this invention is installed on the quay in the outflow prevention form which takes when the storm surge occurs from the sea toward the quay. It is a view from above of the quay where the outflow prevention device of the outflow prevention form shown in FIG. 1 is installed, and the outflow prevention device of the outflow prevention form prevents the outflow of the objects on the quay to the sea. It is a figure which shows the state which is. It is a figure which looked at the state which the outflow prevention device by one Embodiment of this invention is installed on a quay in the mode of loading and unloading work taken at the time of loading and unloading cargo to a ship, and is the work of loading and unloading cargo from above a quay to a ship. It is a figure which shows the state which performs. It is sectional drawing along the IV-IV line in FIG. 3 of the quay where the outflow prevention device of the loading / unloading operation form shown in FIG. 3 is installed. It is a figure which looked at the state which the outflow prevention device by one Embodiment of this invention is installed on a quay in a bollard form which takes in normal times from the sea toward the quay. It is a figure which shows one protection fence which constitutes the outflow prevention device of the outflow prevention form shown in FIG. 1, a fixing pipe and an insertion pipe for fixing the protection fence, and an insertion pipe position fixing device. It is a figure which shows the structure in the vicinity of the receiving pipe of the guard fence of the outflow prevention device in the outflow prevention form, and the insertion pipe and the fixed pipe. It is a vertical cross-sectional view near the upper end portion of an intubation tube. It is a figure which shows the vicinity of the upper end part of the receiving pipe of a guard fence in a vertical cross section, and also shows the holding device provided in the receiving pipe. It is a figure which looked at the vicinity of the upper end part of the receiving pipe and the holding device from the direction of arrow X in FIG. It is a figure which shows the state in the process of transition between the outflow prevention form of the outflow prevention device and the form at the time of loading and unloading work. It is a figure which shows the state in the process of transition between the outflow prevention form of the outflow prevention device and the form at the time of loading and unloading work. It is a figure which shows one fixing pipe, one insertion pipe and one insertion pipe position fixing device which constitute the outflow prevention device of the bollard form shown in FIG. FIG. 13 is a view of the structure near the insertion pipe position fixing device shown in FIG. 13 as viewed from above with the insertion pipe broken horizontally at the position of the upper surface of the quay. It is a figure which partially shows the vicinity of the insertion tube position fixing device in FIG. 13 enlarged.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

The outflow prevention device 1 according to the embodiment of the present invention is a device installed on the quay 100 of the port to prevent the mounted object 102 (see FIG. 2) on the quay 100 from flowing out to the sea. Further, the outflow prevention device 1 has an outflow prevention form (see FIGS. 1 and 2) that prevents a container or other object 102 on the quay 100 from flowing out to the sea when a high tide occurs, and cargo to the ship 106. When loading and unloading the cargo 107, the loading and unloading operation mode (see FIGS. 3 and 4) that allows the loading and unloading work of the cargo 107 on the ship 106 at the position on the quay 100 adjacent to the sea side edge 100a of the quay 100 and the normal time It is configured so that it can take a vehicle stop form (see FIG. 5) that prevents the automobile 104 from falling into the sea from above the quay 100.

Specifically, as shown in FIG. 1, the outflow prevention device 1 according to the present embodiment includes a plurality of protective fences 2, a plurality of holding devices 3, a plurality of fence fixing devices 4, and a plurality of insertion tube position fixing devices. 5 and.

Each of the plurality of guard fences 2 extends in a certain longitudinal direction, and when a storm surge occurs, the sea-side edge extends along the sea-side edge 100a (see FIG. 2) of the harbor quay 100 in the longitudinal direction. It is installed at each installation position on the quay 100 adjacent to the 100a, and is installed side by side along the sea side edge 100a, and in that state, the loading object 102 is prevented from flowing out to the sea. Each guard fence 2 is configured to be movable along the upper surface of the quay 100. As shown in FIG. 6, each guard fence 2 includes a plurality of receiving pipes 12, a connecting portion 13, a plurality of casters 14, a plurality of stand support portions 15, a plurality of stands 16, and a plurality of posture fixing members. 17 and.

Each of the plurality of receiving pipes 12 is arranged so as to extend in the vertical direction above the corresponding fixed pipe 52 described later when the guard fence 2 is installed at the installation position so as to accept the insertion pipe 54 described later. It is composed. The plurality of receiving pipes 12 are arranged side by side at intervals in the longitudinal direction of the guard fence 2 and extend in the vertical direction orthogonal to the longitudinal direction to receive the insertion pipe 54 described later of the fence fixing device 4. Each of the possible receiving spaces 19 (see FIG. 11) is surrounded. In this embodiment, each guard fence 2 has four receiving pipes 12.

Each receiving pipe 12 has a hollow cylindrical shape, and the upper end and the lower end thereof are open. Each receiving pipe 12 has two receiving pipe holes 12a (see FIG. 9) penetrating the pipe wall at the upper end of the receiving pipe 12. The two receiving pipe holes 12a are provided at the same height position and are provided at positions facing each other in the radial direction of the receiving pipe 12. Specifically, the two receiving pipe holes 12a are provided at positions facing each other in the direction along the longitudinal direction of the guard fence 2.

The connecting portion 13 (see FIG. 6) connects the plurality of receiving pipes 12 to each other. When the connecting portion 13 connects the plurality of receiving pipes 12 to each other and the loading object 102 (see FIG. 2) on the quay 100 is exposed to the pulling wave and collides with the connecting portion 13 when a storm surge occurs. Not only the proof stress of one insertion tube 54, but also the total proof stress of the plurality of insertion tubes 54 inserted into the receiving spaces 19 inside the plurality of receiving tubes 12 with respect to the load of collision of the loading object 102. It is designed to compete.

As shown in FIG. 6, the connecting portion 13 has a plurality of base plates 20, a plurality of columns 21, a plurality of beams 22, and a plurality of connecting portions 24.

Each of the plurality of base plates 20 is a flat plate arranged substantially horizontally, and has a rectangular shape when viewed from above. In this embodiment, the connecting portion 13 has four base plates 20. The four base plates 20 are arranged at intervals in the longitudinal direction of the protective fence 2. Each base plate 20 is arranged so that its longitudinal direction coincides with the longitudinal direction of the guard fence 2. Further, each base plate 20 has two through holes (not shown) that penetrate the base plate 20 in the vertical direction (the thickness direction of the base plate 20). One of the two through holes is provided in the center of the base plate 20, and the other through hole is provided side by side in the longitudinal direction of the protective fence 2 with respect to the one through hole. Each of the receiving pipes 12 is inserted into one through hole provided in the center of the corresponding base plate 20, penetrates the base plate 20, and is fixed to the base plate 20 in a posture extending upward from the base plate 20.

Each of the plurality of columns 21 is installed on the corresponding base plate 20 and supports the plurality of beams 22. In this embodiment, each guard fence 2 has four columns 21. Each support column 21 has a cylindrical shape, is inserted into the other through hole provided in the corresponding base plate 20, penetrates the base plate 20, and is fixed to the base plate 20 in a posture extending upward from the base plate 20. There is. In this way, each support column 21 is fixed to the corresponding base plate 20, and each receiving pipe 12 is fixed to the corresponding base plate 20 as described above, so that each receiving pipe 12 is fixed to the corresponding base plate 20 via the corresponding base plate 20. It is connected to the corresponding support column 21.

Each of the plurality of beams 22 extends in the longitudinal direction of the guard fence 2. Each beam 22 connects adjacent columns 21 in the longitudinal direction of the guard fence 2. The plurality of beams 22 are separately arranged on one side and the other side of the plurality of columns 21 in the width direction of the guard fence 2, which is a horizontal direction orthogonal to the longitudinal direction of the guard fence 2, and are separated vertically. And are arranged in two rows. In this way, the beams 22 are arranged vertically apart from each other, and the plurality of columns 21 are arranged at intervals in the longitudinal direction of the protective fence 2, so that the seawater that has rushed onto the quay 100 when a storm surge occurs. Is drained to the sea side between the upper and lower beams 22 and through the space between the adjacent columns 21 and the like, while the outflow of the fixture 102 on the quay 100 can be prevented.

Each of the plurality of connecting portions 24 connects the corresponding receiving pipe 12 and the support column 21 adjacent thereto. In this embodiment, the connecting portion 13 has four connecting portions 24. Each connecting portion 24 is an elongated member extending in the vertical direction. Each connecting portion 24 is interposed between the corresponding receiving pipe 12 and the supporting column 21 adjacent thereto on the upper side of the base plate 20, and is joined to each of the receiving pipe 12 and the supporting column 21 by welding or the like. The corresponding receiving pipe 12 and the support column 21 adjacent to the receiving pipe 12 are connected to each other.

With the above configuration of the connecting portion 13, in each guard fence 2, a plurality of receiving pipes 12 are connected to each other via a plurality of base plates 20, a plurality of connecting portions 24, a plurality of columns 21, and a plurality of beams 22. There is.

Each of the plurality of casters 14 is configured to be rollable on the quay 100 along the upper surface of the quay 100. The rolling of the plurality of casters 14 makes it possible for the guard fence 2 to move along the upper surface of the quay 100 on the quay 100. In this embodiment, six casters 14 are attached to each base plate 20. In each figure showing the casters 14, only three casters 14 out of the six casters 14 attached to each base plate 20 are shown, and the remaining three casters 14 are behind the three casters 14. Hidden in and not represented. Each caster 14 projects downward from the base plate 20 and is attached to the base plate 20 so as to be rotatable around a vertical axis.

Each of the plurality of stand support portions 15 supports the stand 16 so that the corresponding stand 16 can take a support posture and a retracted posture described later. In this embodiment, each guard fence 2 has two stand support portions 15. The two stand support portions 15 are fixed to portions of the upper and lower rows of beams 22 near both ends in the longitudinal direction of the lower row of beams 22. Each stand support portion 15 is provided with a support posture fixing hole 15a (see FIG. 12) and a retracted posture fixing hole 15b (see FIG. 7).

The plurality of stands 16 are said to prevent the guard fence 2 from moving along the upper surface of the quay 100 due to the rolling of the plurality of casters 14 when the guard fence 2 is placed at a certain place on the quay 100. This is for supporting the protective fence 2 with respect to the upper surface of the quay 100. In this embodiment, each guard fence 2 has two stands 16. Each stand 16 has a stand shaft 71 extending in a horizontal direction orthogonal to the longitudinal direction of the guard fence 2, and is shafted by a corresponding stand support portion 15 so as to be rotatable about the stand shaft 71. It is supported. With this configuration, each stand 16 supports the guard fence 2 with respect to the upper surface of the quay 100 so as to prevent the guard fence 2 from moving due to the rolling of the plurality of casters 14 possessed by the guard fence 2 (FIG. 7) and a retracted posture (see FIG. 12) away from the upper surface of the quay 100 so as to allow the guard fence 2 to move due to the rolling of the plurality of casters 14.

In the supporting posture, each stand 16 is erected so as to stand upright on the upper surface of the quay 100 so that the casters 14 do not touch the ground slightly or the weight of the guard fence 2 hardly hangs on the casters 14. Support 2 The outflow prevention device 1 takes an outflow prevention form, and when each guard fence 2 is installed at its installation position, each stand 16 is made to take this support posture.

Further, in the retracted posture, each stand 16 extends substantially horizontally away from the upper surface of the quay 100 along the longitudinal direction of the guard fence 2 so as not to hinder the movement of the guard fence 2 along the upper surface of the quay 100. It has become. When moving each guard fence 2, each stand 16 is made to take this retracted posture.

Each stand 16 is provided with a fixed hole (not shown) for fixing the posture of the stand 16 by the posture fixing member 17. Specifically, the posture fixing member 17 is composed of bolts and nuts, and when each stand 16 takes a supporting posture, the bolt of the posture fixing member 17 is inserted into the fixing hole and the supporting posture fixing hole 15a of the stand supporting portion 15. Each stand 16 is fixed in the supporting posture by being fixed with a nut. Further, when each stand 16 takes a retracted posture, the bolt of the posture fixing member 17 is inserted into the fixing hole and the retracted posture fixing hole 15b of the stand support portion 15 and fixed with a nut, so that each stand 16 retracts. Fixed in posture.

Each of the plurality of holding devices 3 is inserted into the corresponding receiving pipe 12 in which each guard fence 2 is installed at the installation position and the plurality of insertion pipes 54 described later project upward from the corresponding fixed pipe 52. The insertion pipe 54 is held at the insertion height position described later so that the guard fence 2 is fixed to the quay 100 via the insertion pipe 54 and the fixing pipe 52 when placed at the insertion height position described later. It is for doing. The holding device 3 is provided on the guard fence 2, and in the present embodiment, each guard fence 2 is provided with four holding devices 3. Each holding device 3 is attached to the corresponding one of the plurality of receiving pipes 12.

As shown in FIG. 7, each holding device 3 has a support portion 42 and an insertion member 44.

The support portion 42 is attached to the receiving pipe 12. The support portion 42 has an insertion position (see FIG. 7) at which the insertion member 44 is inserted into the two receiving tube holes 12a and the two first insertion tube holes 55a described later, and the two receiving tube holes 12a and the following. The insertion member 44 is supported so as to be movable between the two detaching positions (see FIG. 11) from the first insertion tube holes 55a. Further, the support portion 42 supports the insertion member 44 so that the insertion member 44 can move between the detached position and the hanging position (see FIG. 12) hanging from the support portion 42 along the receiving pipe 12. doing. The support portion 42 is rotatable around an axis perpendicular to both the axial center of the receiving pipe 12 and the straight line connecting the centers of the two receiving pipe holes 12a, and the two receiving pipe holes 12a. The insertion member 44 is supported so as to be slidable along a straight line connecting the centers of the two. As shown in FIGS. 9 and 10, the support portion 42 has a bracket 48 and a shaft portion 49.

The bracket 48 is an outer surface of a portion of the corresponding receiving pipe 12 facing the opposite side of the adjacent column 21, more specifically, a portion of the corresponding receiving pipe 12 facing the opposite side of the receiving pipe hole 12a adjacent to the lower side of the receiving pipe hole 12a. It is attached to. The bracket 48 supports the shaft portion 49 so that the shaft portion 49 extends perpendicularly to both the axis of the receiving pipe 12 and the straight line connecting the centers of the two receiving pipe holes 12a. There is. Specifically, the bracket 48 is a pair of plates arranged at intervals in a direction extending perpendicular to both the axis of the receiving pipe 12 and the straight line connecting the centers of the two receiving pipe holes 12a. It has 48a, and a shaft portion 49 is erected on the pair of plate bodies 48a in the above-mentioned posture. Then, the shaft portion 49 supported by the bracket 48 is slidable in a direction orthogonal to the shaft portion 49 so that the insertion member 44 can rotate about the shaft portion 49. Supports 44.

The insertion member 44 is configured to be insertable into the two receiving pipe holes 12a and the two first insertion pipe holes 55a described later. The insertion member 44 is inserted into the two receiving tube holes 12a and the two first insertion tube holes 55a described later when the insertion tube 54 described later is arranged at the insertion height position described later. The 54 is held at the insertion height position. As shown in FIG. 9, the insertion member 44 has an insertion member main body 50 and an insertion member handle portion 51.

The insertion member main body 50 is a portion to be inserted into the two receiving pipe holes 12a of the receiving pipe 12 and the two first insertion pipe holes 55a of the insertion pipe 54 described later. The insertion member main body 50 is inserted into the two receiving tube holes 12a of the receiving tube 12 and the two first insertion tube holes 55a of the insertion tube 54 described later, so that the insertion tube 54 is held at the insertion height position. It has become so. The insertion member main body 50 is supported by the shaft portion 49 of the support portion 42, is rotatable about the shaft portion 49, and is relative to the shaft portion 49 in a direction orthogonal to the direction in which the shaft portion 49 extends. It is possible to slide. Specifically, the insertion member main body 50 is an elongated plate body, and has an elongated hole 50a that penetrates in the plate thickness direction and extends in the longitudinal direction of the insertion member main body 50. The elongated hole 50a allows the insertion member main body 50 to slide with respect to the shaft portion 49 along the longitudinal direction of the elongated hole 50a, and the insertion member main body 50 rotates about the shaft portion 49. The shaft portion 49 is inserted so as to allow the above.

The insertion member handle 51 is a portion that is gripped by an operator when the insertion member 44 is inserted and removed from the two receiving tube holes 12a and the two first insertion tube holes 55a described later. The insertion member handle 51 is composed of a plate body that is arranged perpendicular to the insertion member main body 50, and one end portion of the insertion member main body 50 in the longitudinal direction, specifically, the receiving pipe hole 12a of the insertion member main body 50. It is attached to the end on the side opposite to the end on the side to be inserted into the first insertion tube hole 55a, which will be described later.

The plurality of fence fixing devices 4 (see FIG. 1) are for fixing the plurality of guard fences 2 at their respective installation positions when the outflow prevention device 1 takes the outflow prevention form. As shown in FIG. 6, the plurality of fence fixing devices 4 have a fixing pipe 52, a descent stop portion 53, an insertion pipe 54, and a handle portion 57, respectively.

The plurality of fixing pipes 52 of the plurality of fence fixing devices 4 are arranged at intervals along the sea side edge 100a at the installation position of the guard fence 2 along the sea side edge 100a of the quay 100, and are vertically and vertically respectively. It is buried and fixed in the quay 100 in a posture extending in the direction. Each fixed tube 52 has a hollow cylindrical shape, the upper end and the lower end thereof are open, and a space into which the insertion tube 54 can be inserted is secured inside the fixed tube 52. The space inside each fixed tube 52 has a depth that allows the corresponding insertion tube 54 to descend to a height position during loading and unloading operations, which will be described later.

The descent stop portion 53 comes into contact with the lower end of the insertion pipe 54 when the insertion pipe 54 descends to the height position during the loading / unloading operation described later, and prevents the insertion pipe 54 from further descending. The descent stop portion 53 is made of a rod-shaped member, is arranged in each fixed pipe 52 so as to extend in the radial direction of each fixed pipe 52, and is fixed to each fixed pipe 52 by welding.

Each of the plurality of insertion pipes 54 of the plurality of fence fixing devices 4 extends in the vertical direction so as to be movable up and down along the axial direction in the space inside the corresponding ones of the plurality of fixed pipes 52. It has been inserted. Each insertion pipe 54 protrudes upward from the corresponding fixed pipe 52 and is inserted into the receiving space 19 inside the corresponding receiving pipe 12 when the outflow prevention device 1 takes the outflow prevention form (FIG. 7). The corresponding receiving pipe 12 and the corresponding fixed pipe 52 arranged in (see) are connected to each other, whereby the receiving pipe 12 is fixed to the quay 100 and the protective fence 2 having the receiving pipe 12 is attached to the quay 100. Fix against. In other words, each insertion tube 54 is arranged so as to straddle the inner space 19 of the corresponding receiving tube 12 and the inner space of the corresponding fixed tube 52 at the insertion height position, and the corresponding receiving tube 12 And the corresponding fixed pipe 52 are connected to each other.

Further, when the outflow prevention device 1 takes the form of loading / unloading work, the insertion pipe 54 is above the fixed pipe 52 on the quay 100 in a state where each guard fence 2 is not installed at the installation position above the fixed pipe 52. It is placed at the height position during loading and unloading work (see FIGS. 4 and 12) that allows the loading and unloading work of the cargo 107 on the ship 106 at the position, and does not interfere with the loading and unloading work of the cargo 107 on the ship 106. ing. Specifically, in the present embodiment, by arranging each insertion pipe 54 at the height position during loading and unloading work, as shown in FIG. 3, the transport device 108 is used to move the container or the like from the quay 100 onto the ship 106. The location above the plurality of fixed pipes 52 (see FIG. 4) on the quay 100 is where the work of transporting and loading the cargo 107 and the work of transporting and unloading the cargo 107 such as containers from above the ship 106 onto the quay 100 are performed. It is secured in the above and does not interfere with the loading and unloading work of the cargo 107. In the present embodiment, the height position during loading / unloading work is such that the upper end of the insertion pipe 54 is located slightly below the upper surface of the quay 100.

Further, by arranging the insertion pipe 54 at the height position during the loading / unloading work, the insertion pipe 54 is separated downward from the reception space 19 inside the reception pipe 12, thereby releasing the fixing of the protective fence 2 to the quay 100 and protecting the insertion pipe 54. Allows movement from the installation position of the fence 2.

The intubation tube 54 has an intubation tube main body 55 and an upper lid 56.

The insertion tube main body 55 constitutes most of the insertion tube 54, and is made of a cylindrical tube. The insertion tube main body 55 has two first insertion tube holes 55a (see FIGS. 7 and 8) and two second insertion tube holes 55b (see FIGS. 13 and 15). The two first insertion tube holes 55a are examples of the insertion tube holes in the present invention.

The two first insertion tube holes 55a are provided at a height position that coincides with the height position of the receiving tube hole 12a of the receiving tube 12 when the insertion tube 54 is arranged at the insertion height position. The two first insertion tube holes 55a are provided at the upper end of the insertion tube 54. Specifically, the two first insertion tube holes 55a are provided at the upper end of the insertion tube main body 55 and penetrate the tube wall of the insertion tube main body 55. Further, the two first insertion tube holes 55a are provided at positions facing each other in the radial direction of the insertion tube main body 55.

The two second insertion tube holes 55b are provided at positions that coincide with the height position of the fixing pin 87 described later of the insertion tube position fixing device 5 when the insertion tube 54 is arranged at the bollard height position. There is. The two second insertion tube holes 55b are provided at predetermined positions in the middle of the insertion tube main body 55 in the vertical direction, and penetrate the tube wall of the insertion tube main body 55. Further, the two second insertion tube holes 55b are provided at positions facing each other in the radial direction of the insertion tube main body 55.

The upper lid 56 is attached to the upper end of the insertion tube main body 55 so as to cover the opening at the upper end of the insertion tube main body 55.

The handle portion 57 is a portion gripped by an operator in order to pull the insertion pipe 54 out of the space inside the fixed pipe 52. The handle portion 57 is provided at the upper end portion of the intubation tube 54. Specifically, the handle portion 57 is attached so as to be movable up and down with respect to the upper lid 56 of the insertion tube 54. The handle portion 57 is prevented from coming off from the upper lid 56 in a state of protruding upward from the upper lid 56. When the handle portion 57 is gripped and the insertion tube 54 is pulled up, the handle portion 57 protrudes upward from the upper lid 56, and when the insertion tube 54 is not pulled up, the handle portion 57 is the upper surface of the upper lid 56 and the handle portion 57. It is designed to descend with respect to the upper lid 56 to a position where the upper ends substantially coincide with each other.

Each of the plurality of insertion pipe position fixing devices 5 is installed on the quay 100 corresponding to each of the plurality of insertion pipes 54. The plurality of insertion pipe position fixing devices 5 are devices for fixing each of the plurality of insertion pipes 54 at the bollard height position. Each insertion pipe position fixing device 5 has a fixed state in which the insertion pipe 54 is fixed at the height position when the corresponding insertion pipe 54 is arranged at the bollard height position, and the insertion pipe 54 is released from the fixation in the vertical direction. It is configured to be switchable to a release state that allows the movement of the insertion tube 54. Note that, in FIGS. 6, 7, 11 and 12, the insertion tube position fixing device 5 is shown in a simplified manner, and FIGS. 13 to 15 specifically show the configuration of the insertion tube position fixing device 5. Has been done.

A plurality of recesses 101b are provided side by side along the sea-side edge 100a in the vicinity of the sea-side edge 100a of the quay 100, and the plurality of insertion tube position fixing devices 5 are provided with the plurality of recesses 101b, respectively. It is installed inside. Each recess 101b is formed so that the circumference of the upper end portion of each of the buried holes 101a is recessed from the upper surface of the quay 100, and has a long rectangular shape in the direction along the sea-side edge 100a of the quay 100 when viewed from above. I'm doing it.

As shown in FIG. 14, each insertion tube position fixing device 5 has a base 82, a first fixing device 83, a second fixing device 84, a plurality of anchor bolts 88, and a plurality of nuts 89.

The base 82 is made of a rectangular flat plate and is installed on the bottom surface of the recess 101b. The base 82 is provided with a central hole 82a and four bolt insertion holes 82b that penetrate the base 82.

The central hole 82a is provided in the center of the base 82. When viewed from above, the fixing tube 52 is arranged so as to fit inside the central hole 82a, and the insertion tube 54 can move up and down through the central hole 82a.

The four bolt insertion holes 82b are provided so as to be separated from the central hole 82a in all directions when the base 82 is viewed from above. Each bolt insertion hole 82b is a hole through which the anchor bolt 88 is inserted, and is an elongated hole extending in the longitudinal direction of the base 82. Four anchor bolts 88 are driven into the bottom surface of the recess 101b at positions corresponding to the four bolt insertion holes 82b, and each anchor bolt 88 is inserted into the corresponding bolt insertion hole 82b. Then, the nut 89 is screwed into each of the anchor bolts 88 and tightened, so that the base 82 is fixed to the bottom surface of the recess 101b.

The first fixing device 83 and the second fixing device 84 are arranged on both sides of the central hole 82a in the longitudinal direction of the base 82. The first fixing device 83 and the second fixing device 84 are configured to be symmetrical with each other, and when the insertion pipe 54 is arranged at the bollard height position, the insertion pipe 54 is stopped from both sides of the bollard. It is fixed at the height position. The first fixing device 83 and the second fixing device 84 each have a plurality of pin support plates 86, a fixing pin 87, and a position holding portion 87a.

The plurality of pin support plates 86 support the fixing pin 87 so as to be movable in the axial direction and rotatably around the axis. The plurality of pin support plates 86 of the first fixing device 83 are fixed upright to the base 82 at a position on one side of the central hole 82a in the longitudinal direction of the base 82, and are spaced apart from each other in the longitudinal direction of the base 82. They are lined up open. Further, the plurality of pin support plates 86 of the second fixing device 84 are fixed upright to the base 82 at a position opposite to the central hole 82a in the longitudinal direction of the base 82, and are fixed in the longitudinal direction of the base 82. They are lined up at intervals. FIG. 6 is a diagram in which a fixing pin 87 is inserted into each of a plurality of pin support plates 86 of the first fixing device 83 and the second fixing device 84 so as to be movable in the axial direction and rotatable around the axis. Abbreviated through holes are provided respectively. In the present embodiment, the first fixing device 83 and the second fixing device 84 each have three pin support plates 86.

The pin support plate 86a arranged at the center of the three pin support plates 86 of the first fixing device 83 is provided with a position holding portion passing groove 86b. The position holding portion passing groove 86b allows the position holding portion 87a provided on the fixing pin 87 to pass through when moving together with the fixing pin 87 in the axial direction of the fixing pin 87, as will be described later. The position holding portion passage groove 86b is connected to a through hole provided in the central pin support plate 86a, and is composed of a notch extending upward from the through hole. The upper end of the position holding portion passage groove 86b is open. The same applies to the three pin support plates 86 of the second fixing device 84, and the pin support plate 86a arranged at the center of the three pin support plates 86 has a similar position holding portion passage groove 86b. Is provided.

The fixing pin 87 of the first fixing device 83 is in a posture extending along the longitudinal direction of the base 82, and a plurality of pin support plates 86 located on one side of the central hole 82a are inserted through the through holes. The fixing pin 87 is movably supported in the axial direction (longitudinal direction of the base 82) by the plurality of pin support plates 86. Further, the fixing pin 87 of the second fixing device 84 has a posture extending along the longitudinal direction of the base 82, and a plurality of pin support plates 86 located at positions on the other side of the central hole 82a are inserted into the through holes thereof. It penetrates by being inserted and is movably supported in the axial direction (longitudinal direction of the base 82) of the fixing pin 87 by the plurality of pin support plates 86.

When the insertion pipe 54 is arranged at the bollard height position, the fixing pin 87 of the first fixing device 83 is inserted into one of the two second insertion pipe holes 55b, and the fixing pin 87 of the second fixing device 84 is inserted. It is inserted into the other of the two second insertion tube holes 55b, thereby fixing the insertion tube 54 at the bollard height position. The position taken when the fixing pin 87 of the first fixing device 83 and the fixing pin 87 of the second fixing device 84 are inserted into the corresponding second insertion tube holes 55b is referred to as an insertion position (see FIGS. 13 and 15). ..

Further, when the insertion tube 54 is moved in the vertical direction, the fixing pin 87 of the first fixing device 83 and the fixing pin 87 of the second fixing device 84 are extracted from the corresponding second insertion tube holes 55b, whereby the insertion tube 54 Release the fixation. The position taken when the fixing pin 87 of the first fixing device 83 and the fixing pin 87 of the second fixing device 84 are pulled out from the corresponding second insertion tube holes 55b is referred to as a pull-out position (see FIG. 14).

The position holding portion 87a holds the axial position of the fixing pin 87 at the insertion position and the insertion / removal position, respectively. Specifically, when the fixing pin 87 is inserted into the second insertion tube hole 55b to fix the insertion tube 54 at the bollard height position and takes the insertion position, the position holding portion 87a takes the fixing pin 87. Is held at its insertion position. Further, when the fixing pin 87 is pulled out from the second insertion tube hole 55b to allow the insertion tube 54 to move in the vertical direction and takes the pull-out position, the position holding portion 87a takes the fixing pin 87. Is held in its pull-out position.

The position holding portion 87a is provided on the fixing pin 87 so as to project outward from a predetermined position on the outer peripheral surface of the fixing pin 87. When the fixing pin 87 takes the insertion position, the position holding portion 87a is an insertion tube rather than the central pin support plate 86a and the central pin support plate 86a of the three pin support plates 86 as shown in FIG. It is arranged between the pin support plate 86 closer to 54, and the movement of the position holding portion 87a in the axial direction of the fixing pin 87 is restricted by the pin support plates 86a, 86. As a result, the position holding portion 87a holds the axial position of the fixing pin 87 at the insertion position. Further, when the fixing pin 87 takes the insertion / removal position, the position holding portion 87a is a pin farther from the insertion tube 54 than the central pin support plate 86a and the central pin support plate 86a as shown in FIG. It is arranged between the support plate 86 and the pin support plates 86a, 86 restrict the movement of the position holding portion 87a in the axial direction of the fixing pin 87. As a result, the position holding portion 87a holds the axial position of the fixing pin 87 at the insertion / removal position.

Further, when the fixing pin 87 is moved between the insertion position and the insertion / removal position in the axial direction of the fixing pin 87, the position holding portion 87a is arranged upward and at a position corresponding to the position holding portion passing groove 86b. As described above, the fixing pin 87 is rotated around its axis so that the position holding portion 87a can pass through the position holding portion passing groove 86b, so that the fixing pin 87 is allowed to move in the axial direction. ing.

Next, the operation method of the outflow prevention device 1 according to the present embodiment will be described.

First, when a high tide occurs, the plurality of guard fences 2 are installed at the installation positions on the quay 100 so that the plurality of guard fences 2 are lined up along the sea side edge 100a of the quay 100 as shown in FIG. As shown in FIG. 6, the plurality of guard fences 2 are fixed to the quay 100 via the insertion pipe 54 and the fixing pipe 52 of each fence fixing device 4, and the plurality of guard fences 2 and the plurality of them are fixed. The insertion pipe 54 of the above prevents the fixture 102 (see FIG. 2) on the quay 100 from being exposed to the waves and flowing out to the sea.

At this time, specifically, the plurality of protective fences 2 stored in the predetermined places are moved on the quay 100 and arranged at the respective installation positions. At the time of this movement, with each stand 16 of each guard fence 2 fixed in the retracted posture, each guard fence 2 is moved to the installation position along the upper surface of the quay 100 by rolling the plurality of casters 14. At each installation position of the plurality of guard fences 2, the plurality of guard fences 2 are lined up along the sea side edge 100a of the quay 100, and each receiving pipe 12 of the plurality of guard fences 2 is a plurality of fixed pipes 52. It is a position placed directly above the corresponding object of (see FIG. 12).

After arranging each of the plurality of guard fences 2 at the installation position, the two stands 16 of each of the guard fences 2 are rotated downward from the retracted posture to be fixed in the support posture (see FIG. 11). The plurality of guard fences 2 are held by the two stands 16 fixed in the supporting posture so as not to be moved by the rolling of the casters 14 at the respective installation positions.

Then, the operator pulls up each of the plurality of insertion tubes 54 from the space inside the corresponding ones of the plurality of fixed tubes 52 to the insertion height position. At this time, the operator grasps the handle portion 57 provided at the upper end of the insertion pipe 54 with one hand, pulls up the insertion pipe 54, and pulls the insertion pipe 54 inside the receiving pipe 12 of the corresponding protective fence 2. It is inserted into the receiving space 19 of the above and placed at the insertion height position (see FIG. 7). Further, the operator moves the insertion member 44 of the holding device 3 from the hanging position (see FIG. 12) to the insertion position (see FIG. 7) via the detachment position (see FIG. 11) with the other hand. The insertion member 44 is inserted into the two receiving pipe holes 12a of the receiving pipe 12 and the two first insertion pipe holes 55a of the insertion pipe 54. As a result, the insertion pipe 54 is held at the insertion height position, and the protective fence 2 is fixed to the quay 100 via the insertion pipe 54 and the fixing pipe 52.

Further, as shown in FIG. 3, when loading and unloading the cargo 107 on the ship 106 attached to the quay 100, each insertion pipe 54 is lowered to release the fixing of the protective fence 2 to the quay 100 and protect the cargo 107. The fence 2 is moved to another place, and each insertion pipe 54 is arranged at a height position during loading / unloading work that allows loading / unloading work of cargo 107 on the ship 106 at a position above the plurality of fixed pipes 52 on the quay 100. ..

At this time, the operator moves the insertion member 44 of each holding device 3 from the insertion position to the detachment position to detach the insertion member 44 from the receiving tube hole 12a and the first insertion tube hole 55a. When the operator releases the insertion member 44 that has been moved to the detached position, the insertion member 44 rotates downward about the shaft portion 49 due to its own weight and takes the hanging posture. Each insertion tube 54 is released from the holding at the insertion height position by the insertion member 44 being separated from the receiving tube hole 12a and the first insertion tube hole 55a, and is lowered by its own weight, and is lowered from the corresponding receiving tube 12. It separates downward and descends inside the corresponding fixed tube 52. Then, when the lower end of each insertion pipe 54 comes into contact with the descent stop portion 53, each insertion pipe 54 stops at a height position during loading and unloading work. When each insertion pipe 54 is separated from the corresponding receiving pipe 12, the fixing of each protection fence 2 to the quay 100 by the insertion pipe 54 and the fixing pipe 52 is released. After that, the operator rotates the stand 16 of each guard fence 2 upward from the support posture to fix it in the retracted posture, and moves each guard fence 2 to a place outside the range where the loading / unloading work is performed. Further, each insertion pipe 54 is arranged below the upper surface of the quay 100 at the height position during the loading / unloading operation, and does not interfere with the loading / unloading operation of the cargo 107 on the ship 106 above the upper surface.

Further, in normal times when no high tide is generated and the cargo 107 is not loaded or unloaded on the ship 106, as shown in FIG. 5, each insertion pipe 54 is on the quay 100 on the sea side of the insertion pipe 54. Each insertion pipe 54 is arranged and fixed at a vehicle stop height position protruding upward from the upper surface of the quay 100 to the extent that the progress of the automobile to the quay 100 can be prevented, and the insertion pipe 54 allows the automobile from above the quay 100 to the sea. Prevent the 104 from falling. Also at this time, each guard fence 2 is not installed at the installation position on the quay 100, but is arranged at another place.

When arranging each insertion tube 54 at the bollard height position, the operator grasps the handle portion 57 (see FIG. 13) at the upper end of each insertion tube 54 and attaches the insertion tube 54 to the inside of the corresponding fixed tube 52. Pull up from the space. When the insertion tube 54 is pulled up, the fixing pins 87 of the first fixing device 83 and the second fixing device 84 are arranged at the removal positions, and the position holding portions 87a provided on the fixing pins 87 are oriented sideways. Each fixing pin 87 is rotated around its axis so as to fall down, and the position of the fixing pin 87 is held in the axial direction between the central pin support plate 86 and the pin support plate 86 farther from the insertion tube 54. The movement of the portion 87a is restricted so that the fixing pin 87 is held in the withdrawal position.

Then, when the insertion pipe 54 is pulled up to the bollard height position, the fixing pins 87 of the first fixing device 83 and the second fixing device 84 of the insertion pipe position fixing device 5 are inserted into the corresponding second insertion pipe holes of the insertion pipe 54. Each of them is inserted into 55b and placed at the insertion position, whereby the insertion pipe 54 is fixed at the bollard height position so as not to descend from the bollard height position.

When the fixing pin 87 is inserted into the second insertion tube hole 55b, the fixing pin 87 is rotated about its axis so that the position holding portion 87a faces upward and is arranged at a position corresponding to the position holding portion passing groove 86b. Therefore, the fixing pin 87 is moved along the axial direction toward the insertion tube 54. As a result, the position holding portion 87a passes through the position holding portion passing groove 86b, and the fixing pin 87 is inserted into the second insertion tube hole 55b and arranged at the insertion position. After the fixing pin 87 is arranged at the insertion position, the fixing pin 87 is rotated about its axis so that the position holding portion 87a tilts sideways, and the one closer to the central pin support plate 86a and the insertion tube 54. The movement of the position holding portion 87a of the fixing pin 87 in the axial direction is restricted between the pin support plate 86a and the pin support plate 86a closer to the insertion tube 54, whereby the fixing pin 87 is inserted into the insertion position. Hold with.

By fixing each insertion pipe 54 to the bollard height position as described above, the outflow prevention device 1 has the bollard form shown in FIG. 5, and a plurality of insertion pipes 54 arranged side by side and projecting onto the quay 100. Prevents the vehicle 104 from falling into the sea.

In the present embodiment, when a high tide occurs, the operator pulls up the insertion pipe 54 from the space inside the fixed pipe 52 and inserts it into the receiving space 19 inside the receiving pipe 12 of the guard fence 2, and hands the insertion pipe 54. While holding at the insertion height position, the insertion member 44 of the holding device 3 is inserted into the first insertion tube hole 55a of the insertion tube 54 and the receiving tube hole 12a of the receiving tube 12, and the insertion tube 54 is inserted at the insertion height. Since the work of holding at the position can be performed by one person, and the guard fence 2 can be fixed on the quay 100 and the loading object 102 on the quay 100 can be prevented from flowing out to the sea just by performing the work. When a high tide occurs, it is possible to quickly prevent the load 102 on the quay 100 of the port from flowing out.

Specifically, in the outflow prevention device 1 according to the present embodiment, the insertion pipe 54 is inserted vertically into the space inside the fixed pipe 52 embedded in the quay 100, and is inserted when a high tide occurs. Simply pulling up the pipe 54, arranging it at the insertion height position, inserting it into the receiving space 19 inside the receiving pipe 12, and holding the insertion pipe 54 at the insertion height position by the holding device 3, the quay 100 The guard fence 2 can be fixed on the guard fence 2, and the guard fence 2 can prevent the object 102 on the quay 100 from flowing out to the sea. For this reason, the outflow prevention device 1 according to the present embodiment does not require a lot of time-consuming work such as transporting a plurality of columns from the storage location and standing them on the quay in order to install the conventional outflow prevention wall. is there.

Further, for example, the receiving pipe hole 12a is provided at a height position near the base plate 20 in the receiving pipe 12, and the first insertion pipe hole 55a is located at an intermediate position in the vertical direction of the insertion pipe 54. An insertion member that is provided at a height position that coincides with the receiving pipe hole 12a at a height near the base plate 20 when placed at the insertion height position, and can be inserted into and removed from the receiving pipe hole 12a and the first insertion pipe hole 55a. Even if the holding device having 44 is installed on the base plate 20, the first insertion tube hole 55a of the insertion tube 54 and the receiving tube hole 12a of the receiving tube 12 arranged at the insertion height position It is possible to insert the insertion member 44 and hold the insertion tube 54 at the insertion height position. However, in this configuration, when the insertion tube 54 is arranged at the insertion height position, the handle portion 57 provided at the upper end of the insertion tube 54, the first insertion tube hole 55a, and the receiving tube hole 12a Since the height difference between the two is large, the operator grasps the handle portion 57 and holds the insertion tube 54 at the insertion height position while inserting the insertion member 44 into the receiving tube hole 12a and the first insertion tube hole 55a. It is difficult to perform by one person, and a worker other than the worker who grips the handle portion 57 and holds the insertion tube 54 at the insertion height position inserts the insertion member 44 into the receiving tube hole 12a and the first insertion tube hole. There is no choice but to perform the work of inserting through 55a.

On the other hand, in the outflow prevention device 1 according to the present embodiment, the handle portion 57 is provided at the upper end portion of the insertion pipe 54, and the receiving pipe 12 of the guard fence 2 penetrates the pipe wall at the upper end portion thereof. Since the receiving pipe hole 12a is provided and the insertion pipe 54 has two first insertion pipe holes 55a provided at the upper end thereof, the operator grips the handle portion 57 and inserts the insertion pipe 54 into the insertion height position. When the two first insertion tube holes 55a are pulled up and aligned with the two receiving tube holes 12a, the handle portion 57, the two receiving tube holes 12a, and the two first insertion tube holes 55a are arranged close to each other. Will be done. Therefore, the operator holds the insertion tube 54 at the insertion height position by grasping the handle portion 57 with one hand, and moves the insertion member 44 of the holding device 3 to the insertion position with the other hand. The work of inserting into the two first insertion tube holes 55a and the two receiving tube holes 12a can be performed. Therefore, when a storm surge occurs, the operator arranges the insertion pipe 54 at the insertion height position, holds the insertion pipe 54 at the insertion height position by the holding device 3, and fixes the protective fence 2 on the quay 100. Can be done quickly by one person. Therefore, when a storm surge occurs, it is possible to quickly prevent the placement 102 on the quay 100 of the port from flowing out.

Further, in the outflow prevention device 1 according to the present embodiment, the space inside the fixed pipe 52 is the ship 106 at a position where the insertion pipe 54 is lower than the receiving pipe 12 and above the fixed pipe 52 on the quay 100. It has a depth that allows the cargo 107 to be lowered to a height position during the loading and unloading operation. Therefore, when loading and unloading the cargo 107 on the ship 106, the insertion member 44 of the holding device 3 is moved to the detaching position and detached from the two first insertion pipe holes 55a and the two receiving pipe holes 12a. For example, the insertion pipe 54 can be lowered to a height position during loading and unloading work to be detached downward from the receiving pipe 12 of the protection fence 2, and as a result, the protection fence 2 is released from being fixed by the insertion pipe 54 for protection. The fence 2 can be moved from the installation position on the quay 100 to another place. Moreover, the loading / unloading work can be prevented from being hindered by the insertion pipe 54 at the height position during the loading / unloading work. Therefore, the cargo 107 can be smoothly loaded and unloaded on the ship 106.

Further, in the outflow prevention device 1 according to the present embodiment, the fixed pipe 52 and the insertion pipe 54 of the outflow prevention device 1 are used in normal times when no high tide is generated and the cargo 107 is not loaded or unloaded on the ship 106. Therefore, it is possible to prevent the automobile 104 from falling from the quay 100 of the port to the sea. Specifically, in normal times, the insertion pipe 54 is projected from the inside of the fixed pipe 52 onto the quay 100 and placed at the bollard height position, and the insertion pipe position fixing device 5 is switched from the released state to the fixed state. The insertion pipe 54 can be fixed at the bollard height position, and the insertion pipe 54 fixed at the bollard height position can prevent the automobile 104 from advancing to the sea side and prevent the automobile 104 from falling into the sea. it can.

(Modification example)
The outflow prevention device according to the present invention is not necessarily limited to the above. For example, the following configuration can be adopted for the outflow prevention device according to the present invention.

For example, the outflow prevention device according to the present invention is not necessarily limited to a vehicle stop form. That is, the outflow prevention device according to the present invention does not necessarily have to include an insertion pipe position fixing device for fixing the insertion pipe at the bollard height position. That is, the insertion pipe position fixing device 5 of the outflow prevention device 1 of the above embodiment may be omitted. In this case, the second insertion tube hole 55b provided in the insertion tube 54 may be omitted.

Further, the fixed pipe may not necessarily be provided with a descent stop portion for loading and unloading the descent of the insertion pipe and stopping it at a height position during work. That is, the insertion tube may be able to descend in the space inside the fixed tube to a position where the lower end of the insertion tube is aligned with the lower end of the fixed tube in the space inside the fixed tube. In this case, the space inside the fixed pipe may have a depth that allows the fixed pipe to descend to the height position during loading and unloading work.

Further, the configuration of the protective fence is not necessarily limited to that shown in the above embodiment. For example, the number of beams possessed by the connecting portion of the guard fence, the vertical spacing of the beams, the connecting structure between the beams located on both sides of the support column and the receiving pipe, the number and arrangement of casters, and other configurations are described above. It is possible to apply various configurations other than the configurations shown in the form.

Further, the shape of the beam included in the connecting portion of the guard fence is not particularly limited. That is, the beam is not necessarily limited to the tubular one used in the above embodiment, and may be, for example, a corrugated one (corrugated plate shape) as used for a guard fence.

Further, the fact that the protective fence in the present invention is movable on the quay means that it is sufficient if it can be moved by some method regardless of the movement form and the means of movement. Therefore, the guard fence is not necessarily limited to the one that can move on the quay by the rolling of its casters. For example, the protective fence in the present invention may not be provided with casters and may be installed by being placed at an installation position on the quay, or may be dragged or pushed on the upper surface of the quay. Alternatively, it may be a protective fence that can be lifted and moved from the upper surface of the quay.

1 Outflow prevention device 2 Protective fence 3 Holding device 5 Insert pipe position fixing device 12 Receiving pipe 12a Receiving pipe hole 42 Support part 44 Inserting member 52 Fixing pipe 54 Inserting pipe 55a First insertion pipe hole (inserting pipe hole)
57 Handle 100 Quay 100a Seaside edge 102 Figurine 104 Automobile 106 Ship 107 Cargo

Claims (3)

An outflow prevention device installed on the quay of a harbor to prevent the objects on the quay from flowing out to the sea.
A fixed pipe buried in the quay so as to extend in the vertical direction,
An insertion tube that is vertically movable into the space inside the fixed tube,
A protective fence that is configured to be movable on the quay and prevents the above-mentioned figurine from flowing out when installed at an installation position on the quay so as to extend along the sea-side edge of the quay. When the guard fence is installed at the installation position, it is arranged so as to extend in the vertical direction above the fixed pipe and has a receiving pipe capable of receiving the insertion pipe.
When the insertion pipe is provided on the protection fence and is arranged at an insertion height position where the insertion pipe protrudes upward from the fixed pipe and is inserted into the receiving pipe, the protection fence is provided via the insertion pipe and the fixing pipe. A holding device for holding the insertion tube at the insertion height position so as to be fixed to the quay.
A handle portion provided at the upper end portion of the insertion tube and gripped to pull the insertion tube from the space inside the fixed tube is provided.
The receiving pipe has a receiving pipe hole penetrating the pipe wall at the upper end of the receiving pipe.
The insertion tube has an insertion tube hole provided at the upper end of the insertion tube.
The holding device is configured to be insertable into the receiving tube hole and the insertion tube hole, and is inserted into the receiving tube hole and the insertion tube hole when the insertion tube is arranged at the insertion height position. An insertion member that holds the insertion tube at the insertion height position, an insertion position that is attached to the receiving tube and the insertion member is inserted into the receiving tube hole, the insertion tube hole, and the receiving tube hole. An outflow prevention device having a support portion that supports the insertion member so as to be movable between the insertion tube hole and the detachment position. The space inside the fixed pipe is the height during loading and unloading work that allows the loading and unloading work of cargo on the ship at the position where the insertion pipe is lower than the receiving pipe and above the fixed pipe on the quay. The outflow prevention device according to claim 1, which has a depth that allows the vehicle to descend to the position. When the insertion pipe is arranged at a bollard height position protruding from the space inside the fixed pipe onto the quay to the extent that the vehicle can be blocked from moving toward the sea side of the insertion pipe, the insertion pipe is inserted. The outflow prevention device according to claim 1 or 2, further comprising an insertion pipe position fixing device configured to be switchable between a fixed state of fixing at the bollard height position and a release state of releasing the fixing.

Images