JP7280803B2 - Spill prevention device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outflow prevention device that is installed on a quay wall of a harbor to prevent objects placed on the quay wall from flowing out into the sea.

2. Description of the Related Art Conventionally, devices are known for preventing various types of damage caused by storm surges and flooding of rivers caused by typhoons. For example, Patent Literature 1 below discloses a portable embankment installed on the embankment when the water level of a river rises.

The portable embankment disclosed in Patent Document 1 below includes a plurality of supports and a plurality of wall panels. When the river is expected to rise and overflow, the portable embankment shall be erected in a row by inserting multiple supports into multiple holes provided at regular intervals on the foundation. By attaching wall panels between adjacent ones of a plurality of erected pillars, an emergency cutoff wall is formed on the foundation, thereby preventing water from overflowing from the river.

JP 2016-23427 A

By the way, when a storm surge occurs, there are cases in which damage occurs due to waves surging from the sea overcoming the quay walls of harbors. Specifically, there is a case where a placed object such as a container placed on a wharf is swept away by waves and flowed out to sea. In order to prevent this damage, for example, by using the technology disclosed in Patent Document 1, a plurality of holes are provided on the wharf of the harbor at regular intervals, and when a storm surge occurs, the holes are filled with water. Outflow prevention to prevent outflow of objects placed on the wharf into the sea by inserting and erecting a plurality of pillars, and attaching a wall panel between adjacent ones of the plurality of erected pillars. Constructing a wall is also conceivable.

However, in this case, it is difficult to quickly prevent the objects placed on the wharf of the harbor from flowing out when a storm surge occurs, which requires urgency. Specifically, in order to configure the outflow prevention wall, it is necessary to transport a plurality of posts from a storage place, insert them into a plurality of holes, and erect them on the quay, which is complicated. and takes a lot of time.

SUMMARY OF THE INVENTION An object of the present invention is to provide an outflow prevention device capable of quickly preventing outflow of objects placed on a wharf of a harbor when a storm surge occurs.

The outflow prevention device provided by the present invention is an outflow prevention device that is installed on a wharf of a harbor and prevents objects placed on the wharf from flowing out to the sea. This outflow prevention device includes a fixed pipe embedded in the quay wall so as to extend in the vertical direction, an insertion pipe inserted in a space inside the fixed pipe so as to be vertically movable, and a quay wall movable. a protective fence configured to prevent the outflow of the placed object when installed at an installation position on the quay so as to extend along the sea-side edge of the quay, wherein the protective fence is positioned at the installation position a receiving pipe arranged to extend vertically above the fixed pipe when installed and capable of receiving the insertion pipe; The insertion pipe is inserted into the receiving pipe so that the protective fence is fixed to the quay through the insertion pipe and the fixing pipe when placed at the insertion height position where it protrudes to the receiving pipe and is inserted into the receiving pipe. A holding device for holding at a height position, and a handle provided at the upper end of the insertion tube and gripped to pull up the insertion tube from the space inside the fixed tube are provided. The receiving tube has a receiving tube bore extending through the tube wall at the upper end of the receiving tube. The insertion tube has an insertion tube hole provided at the upper end of the insertion tube. The holding device is configured to be able to be inserted through the receiving tube hole and the insertion tube hole, and is inserted through 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 by means of, an insertion position attached to the receiving tube at which the insertion member is inserted through the receiving tube hole and the insertion tube hole, the receiving tube hole and a support part that supports the insertion member so as to be movable between a disengagement position and a disengagement position where the insertion member is disengaged from the insertion tube hole.

In this outflow prevention device, when a storm surge occurs, an operator pulls up the insertion pipe from the space inside the fixed pipe and inserts it into the receiving pipe of the protective fence, and holds the insertion pipe at the insertion height position by hand. The work of inserting the insertion member of the holding device into the insertion tube hole of the insertion tube and the receiving tube hole of the receiving plan to hold the insertion tube at the insertion height position can be performed by one person, and protection can be achieved simply by performing this work. Since the fence can be fixed on the wharf to prevent the objects placed on the wharf from flowing out into the sea, it is possible to quickly prevent the objects placed on the wharf of the harbor from flowing out when a storm surge occurs.

Specifically, in this outflow prevention device, the insertion pipe is inserted vertically movably into the space inside the fixed pipe buried in the quay. By simply holding the insertion pipe at the insertion height position by a holding device, a protective fence is fixed on the quay, and the object placed on the quay is protected from the sea by the protective fence. can be prevented from flowing out. For this reason, this outflow prevention device does not require a time-consuming task of transporting a plurality of posts from a storage place and erecting them on the quay in order to install a conventional outflow prevention wall. In this outflow prevention device, the handle is provided at the upper end of the insertion pipe, the receiving pipe of the protective fence has a receiving pipe hole penetrating the pipe wall at the upper end, and the insertion pipe Since the insertion tube hole is provided in the part, when the operator grasps the handle part and raises the insertion tube to the insertion height position and aligns the insertion tube hole with the receiving tube hole, the handle part and the insertion tube A bore and a receiving tube bore are positioned close to each other. For this reason, the operator grasps the handle portion with one hand to hold the insertion tube at the insertion height position, and moves the insertion member of the holding device to the insertion position with the other hand to move the insertion tube hole and the insertion tube hole. The work of inserting into the receiving tube can be performed. For this reason, when a storm surge occurs, a worker can quickly place the insertion pipe at the insertion height position, hold the insertion pipe at the insertion height position with a holding device, and fix the protective fence on the quay. It can be carried out. As described above, with this outflow prevention device, it is possible to quickly prevent the outflow of objects placed on a harbor when a storm surge occurs.

The space inside the fixed pipe has a loading/unloading work height that allows the loading/unloading work of the cargo to/from the ship at a position above the fixed pipe on the wharf with the insertion pipe positioned below the receiving pipe. It preferably has a depth that allows it to be lowered to the uppermost position.

According to this configuration, when loading and unloading cargo on a ship, the inserting member of the holding device is moved to the detachment position and detached from the insertion pipe hole and the receiving pipe hole. It can be lowered to the height position and detached downward from the receiving pipe of the protective fence. As a result, the protective fence can be released from the fixed position of the protective fence by the insertion pipe and moved from the installation position on the quay to another place. can. In addition, the loading and unloading work can be prevented from being hindered by the insertion pipe at the height position during the loading and unloading work. Therefore, cargo can be smoothly loaded and unloaded from the ship.

The outflow prevention device is arranged at a car stop height position where the insertion pipe protrudes above the quay from the space inside the fixed pipe to such an extent that the insertion pipe can block the movement of the automobile toward the sea side from the insertion pipe. It is preferable to further include an insertion tube position fixing device capable of switching between a fixed state in which the insertion tube is fixed at the wheel stop height position and a released state in which the fixation is released.

According to this configuration, during normal times when there is no storm surge and cargo is not being loaded and unloaded from the ship, the fixed pipe and the insertion pipe of the outflow prevention device are used to drive cars from the wharf of the harbor to the sea. Falling can be prevented. Specifically, in normal times, the insertion pipe is protruded from the inside of the fixed pipe onto the quay and arranged at the height of the car stop, and the insertion pipe is moved from the car stop by switching the insertion pipe position fixing device from the released state to the fixed state. It can be fixed at the height position, and the insertion pipe fixed at the height position of the car stop prevents the car from advancing to the sea side and prevents the car from falling into the sea.

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

FIG. 2 is a view of the outflow prevention device according to the embodiment of the present invention installed on the quay in an outflow prevention configuration when a storm surge occurs, viewed from the sea toward the quay; FIG. 2 is a top view of the quay on which the outflow prevention device of the outflow prevention type shown in FIG. 1 is installed; It is a figure which shows the state which is. FIG. 2 is a top view of a state in which the outflow prevention device according to the embodiment of the present invention is installed on a quay in a configuration during loading and unloading of cargo to and from a ship, and is a view from above of the quay for loading and unloading of cargo from the quay; is a diagram showing a state in which FIG. 4 is a cross-sectional view of the wharf along the IV-IV line in FIG. FIG. 2 is a view of the outflow prevention device according to the embodiment of the present invention installed on the wharf in the form of a car stop in normal times, viewed from the sea toward the wharf; 1. It is a figure which shows one protective fence which comprises the outflow prevention apparatus of the outflow prevention form shown in FIG. 1, the fixing pipe and insertion pipe for fixing the protection fence, and an insertion pipe position fixing apparatus. FIG. 4 is a view showing the structure near the receiving pipe of the protection fence of the outflow prevention device in the outflow prevention mode, the insertion pipe, and the fixed pipe. It is a longitudinal cross-sectional view of the vicinity of the upper end portion of the insertion tube. It is a figure which shows the holding|maintenance apparatus provided in the receiving pipe while showing the upper-end part vicinity of the receiving pipe of a protective fence partially in a vertical cross section. It is the figure which looked at the upper end part vicinity of a receiving pipe, and a holding device from the arrow X direction in FIG. FIG. 12 shows the anti-spill device during transition between the anti-spill configuration and the loading/unloading configuration; FIG. 12 shows the anti-spill device during transition between the anti-spill configuration and the loading/unloading configuration; FIG. 6 is a diagram showing one fixing tube, one insertion tube, and one insertion tube position fixing device that constitute the wheel stopper-type outflow prevention device shown in FIG. 5 ; It is the figure which looked at the structure near the insertion pipe position fixing apparatus shown in FIG. 14 is an enlarged view partially showing the vicinity of the insertion tube position fixing device in FIG. 13; FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.

An outflow prevention device 1 according to one embodiment of the present invention is a device that is installed on a quay 100 of a harbor to prevent a placed object 102 (see FIG. 2) on the quay 100 from flowing out to sea. In addition, the outflow prevention device 1 has an outflow prevention form (see FIGS. 1 and 2) that prevents the placed object 102 such as a container on the quay 100 from flowing out to the sea when a storm surge occurs, and a cargo to the ship 106. When loading and unloading cargo 107, the cargo 107 can be loaded and unloaded onto the ship 106 at a position on the quay 100 adjacent to the edge 100a on the sea side of the quay 100 (see FIGS. 3 and 4). It is constructed so as to be able to take the form of a car stop (see FIG. 5) that prevents the automobile 104 from falling from the quay 100 into the sea.

Specifically, as shown in FIG. 1, the outflow prevention device 1 according to this 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 .

The plurality of protective fences 2 each extend in a certain longitudinal direction, and when a storm surge occurs, the seaside edge of the harbor quay wall 100 extends along the seaside edge 100a (see FIG. 2) in the longitudinal direction. 100a are installed at installation positions on the quay wall 100 adjacent to the quay wall 100a, and are installed side by side along the sea-side edge 100a to prevent the objects 102 from flowing out to the sea. Each protective fence 2 is configured to be movable along the upper surface of the quay 100 . Each protective fence 2, as shown in FIG. 17 and.

Each of the plurality of receiving pipes 12 is arranged to extend vertically above a corresponding fixed pipe 52 described later when the protective fence 2 is installed at the installation position, and is capable of receiving an inserting pipe 54 described later. It is constructed. The plurality of receiving pipes 12 are arranged side by side at intervals in the longitudinal direction of the protective fence 2 and extend in the vertical direction orthogonal to the longitudinal direction, and receive insertion pipes 54 described later of the fence fixing device 4. Each encloses a possible receiving space 19 (see FIG. 11). In this embodiment, each guard fence 2 has four receiving pipes 12 .

Each receiving tube 12 has a hollow cylindrical shape, and its upper and lower ends are open. Each receiving tube 12 has two receiving tube holes 12a (see FIG. 9) penetrating the tube wall at the upper end of the receiving tube 12 concerned. The two receiving pipe holes 12 a 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 protective fence 2 .

The connecting portion 13 (see FIG. 6) connects the plurality of receiving pipes 12 to each other. By connecting the plurality of receiving pipes 12 to each other with the connecting portion 13, when a mounted object 102 (see FIG. 2) on the wharf 100 is swept away by an undertow and collides with the connecting portion 13 when a storm surge occurs, , not only the bearing capacity of only one insertion tube 54, but also the total bearing capacity of the plurality of insertion tubes 54 inserted into the receiving spaces 19 inside the plurality of receiving tubes 12. It's made to be able to fight.

The connecting portion 13 has a plurality of base plates 20, a plurality of struts 21, a plurality of beams 22, and a plurality of connecting portions 24, as shown in FIG.

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 . These 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 protective fence 2 . Each base plate 20 has two through-holes (not shown) penetrating through the base plate 20 in the vertical direction (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 along 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 of the through holes provided in the center of the corresponding base plate 20, passes through the base plate 20, and is fixed to the base plate 20 in a posture extending upward from the base plate 20.

A plurality of struts 21 are installed on corresponding base plates 20 to support a plurality of beams 22 . In this embodiment, each guard fence 2 has four posts 21 . Each post 21 has a cylindrical shape, is inserted into the other through hole provided in the corresponding base plate 20, passes through the base plate 20, and is fixed to the base plate 20 in a posture extending upward from the base plate 20. there is Since each post 21 is fixed to the corresponding base plate 20 in this manner and each receiving tube 12 is fixed to the corresponding base plate 20 as described above, each receiving tube 12 is connected to the corresponding base plate 20. are connected to corresponding struts 21 .

The plurality of beams 22 extend in the longitudinal direction of the protective fence 2, respectively. Each beam 22 connects adjacent struts 21 in the longitudinal direction of the protective fence 2 . The plurality of beams 22 are arranged separately on one side and the other side of the plurality of columns 21 in the width direction of the protective fence 2, which is the horizontal direction orthogonal to the longitudinal direction of the protective fence 2, and are separated vertically. are arranged in two rows. By arranging the beams 22 vertically apart in this manner and by arranging the plurality of struts 21 at intervals in the longitudinal direction of the protective fence 2, the seawater rushing onto the quay wall 100 when a storm surge occurs is drained to the sea side through the spaces between the upper and lower beams 22 and between the adjacent struts 21, while preventing the objects 102 placed on the wharf 100 from flowing out.

A plurality of connecting portions 24 respectively connect corresponding receiving pipes 12 and struts 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 the receiving pipe 12 and the supporting column 21 by welding or the like. connects the corresponding receiving tube 12 and the strut 21 adjacent thereto.

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

The plurality of casters 14 are configured to roll on the quay 100 along the upper surface of the quay 100 . The protective fence 2 can move on the quay 100 along the upper surface of the quay 100 by the rolling of the plurality of casters 14 . In this embodiment, six casters 14 are attached to each base plate 20 . It should be noted that 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 and not represented. Each caster 14 protrudes downward from the base plate 20 and is attached to the base plate 20 so as to be rotatable about a vertical axis.

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

The plurality of stands 16 prevent the movement of the protective fence 2 along the upper surface of the quay 100 due to the rolling of the plurality of casters 14 when the protective fence 2 is placed on the quay 100 . It is for supporting the protection fence 2 with respect to the upper surface of the quay 100. FIG. Each protective fence 2 has two stands 16 in this embodiment. Each stand 16 has a stand shaft 71 that extends horizontally perpendicular to the longitudinal direction of the protective fence 2, and is pivoted around the stand shaft 71 by the corresponding stand support portion 15. supported. With this configuration, each stand 16 supports the protective fence 2 against the upper surface of the quay 100 so as to prevent the protective fence 2 from moving due to the rolling of the plurality of casters 14 of the protective fence 2 (Fig. 7), and a retraction posture (see FIG. 12) away from the upper surface of the quay wall 100 so as to allow the movement of the protective fence 2 by rolling of the plurality of casters 14 .

Each stand 16 is erected on the upper surface of the quay wall 100 in its supporting posture, and each caster 14 does not touch the ground slightly, or each caster 14 does not substantially bear the weight of the protective fence 2. Support 2. When the outflow prevention device 1 takes the outflow prevention form and each protective fence 2 is installed at its installation position, each stand 16 is made to take this supporting posture.

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

Each stand 16 is provided with a fixing 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 a bolt and a nut, and the bolt of the posture fixing member 17 is inserted into the fixing hole and the support posture fixing hole 15a of the stand support portion 15 when each stand 16 takes the support posture. Each stand 16 is fixed in the supporting posture by being tightened and fixed with nuts. 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, whereby each stand 16 retracts. Fixed in posture.

In the plurality of holding devices 3, each protective fence 2 is installed at the installation position, and a plurality of insertion tubes 54, which will be described later, protrude upward from corresponding fixed tubes 52 and are inserted into corresponding receiving tubes 12. The insertion pipe 54 is held at the insertion height position described later so that the protective fence 2 is fixed to the quay wall 100 via the insertion pipe 54 and the fixed pipe 52 when arranged at the insertion height position described later. It is for The holding devices 3 are provided on the guard fences 2 , and in this embodiment, each guard fence 2 is provided with four holding devices 3 . Each holding device 3 is attached to a corresponding one of said plurality of receiving tubes 12 .

Each holding device 3 has a support portion 42 and an insertion member 44, as shown in FIG.

The support portion 42 is attached to the receiving pipe 12 . The support portion 42 has an insertion position (see FIG. 7) where the insertion member 44 is inserted through the two receiving pipe holes 12a and two first insertion pipe holes 55a described later, and the two receiving pipe holes 12a and It supports the inserting member 44 so as to be movable between a disengaged position (see FIG. 11) where it disengages from the two first insertion pipe 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 a hanging position (see FIG. 12) where the insertion member 44 hangs down from the support portion 42 along the receiving pipe 12. are doing. The support portion 42 is rotatable about an axis perpendicular to both the axis of the receiving pipe 12 and the straight line connecting the centers of the two receiving pipe holes 12a, and is capable of rotating 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. The support portion 42 has a bracket 48 and a shaft portion 49, as shown in FIGS.

The bracket 48 is a portion of the corresponding receiving pipe 12 facing away from the adjacent strut 21, more specifically, of the portion facing away from the strut 21, the outer surface of the portion adjacent to the lower side of the receiving pipe hole 12a. attached to the 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 spaced apart 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. 48a, and a shaft portion 49 is laid over the pair of plate bodies 48a in the posture described above. The shaft portion 49 supported by the bracket 48 is arranged so that the insertion member 44 is rotatable about the shaft portion 49 and slidable in a direction perpendicular to the shaft portion 49 . 44 is supported.

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

The insertion member main body 50 is a portion that is inserted into the two receiving tube holes 12a of the receiving tube 12 and two first insertion tube holes 55a of an insertion tube 54, which will be described later. The insertion tube 54 is held at the insertion height position by inserting the insertion member body 50 through the two receiving tube holes 12a of the receiving tube 12 and two first insertion tube holes 55a of the insertion tube 54, which will be described later. 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 rotates relative to the shaft portion 49 in a direction perpendicular to the direction in which the shaft portion 49 extends. It is slidable. Specifically, the insertion member main body 50 is an elongated plate, and has an elongated hole 50a extending in the longitudinal direction of the insertion member main body 50 while penetrating in the plate thickness direction. The long hole 50a allows the insertion member main body 50 to slide with respect to the shaft portion 49 along the longitudinal direction of the long hole 50a and allows the insertion member main body 50 to rotate about the shaft portion 49. The shaft portion 49 is inserted so as to allow the

The insertion member handle portion 51 is a portion that is gripped by an operator when inserting and removing the insertion member 44 into and out of the two receiving pipe holes 12a and two first insertion pipe holes 55a, which will be described later. The insertion member handle portion 51 is formed of a plate disposed perpendicularly to the insertion member main body 50 and is located at one longitudinal end portion of the insertion member main body 50 , specifically, the receiving pipe hole 12 a of the insertion member main body 50 . and the end opposite to the end inserted into a first insertion pipe hole 55a, which will be described later.

A plurality of fence fixing devices 4 (see FIG. 1) are for fixing a plurality of protective fences 2 at their respective installation positions when the outflow prevention device 1 takes the outflow prevention mode. The plurality of fence fixing devices 4 each have a fixing pipe 52, a drop stop portion 53, an insertion pipe 54, and a handle portion 57, as shown in FIG.

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 protective fence 2 along the sea-side edge 100a of the wharf 100, and vertically It is embedded and fixed in the quay wall 100 in a posture extending in the direction. Each fixed tube 52 has a hollow cylindrical shape, is open at its upper and lower ends, and secures a space into which the insertion tube 54 can be inserted. The space inside each fixed pipe 52 has a depth that allows the corresponding insertion pipe 54 to be lowered to a height position during loading and unloading operations, which will be described later.

The lowering stop portion 53 abuts against the lower end of the insertion tube 54 to prevent further descent of the insertion tube 54 when the insertion tube 54 is lowered to a height position for loading and unloading operations, which will be described later. 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.

The plurality of insertion tubes 54 of the plurality of fence fixing devices 4 extend in the vertical direction, respectively, so as to be vertically movable in the space inside the corresponding one of the plurality of fixing tubes 52 along the axial direction. inserted. Each insertion tube 54 protrudes upward from the corresponding fixed tube 52 and is inserted into the receiving space 19 inside the corresponding receiving tube 12 when the outflow preventing device 1 takes the outflow preventing form (Fig. 7). ) to interconnect the corresponding receiving pipe 12 and the corresponding fixed pipe 52, thereby fixing the receiving pipe 12 to the quay 100 and attaching the protective fence 2 having the receiving pipe 12 to the quay 100. fixed against. In other words, each insertion tube 54 is arranged so as to straddle the receiving space 19 inside the corresponding receiving tube 12 and the space inside the corresponding fixed tube 52 at the insertion height position. and corresponding fixed tubes 52 are interconnected.

In addition, when the outflow prevention device 1 takes the configuration for loading and unloading work, the insertion pipe 54 is placed above the fixed pipe 52 on the quay 100 in a state where each protective fence 2 is not installed at the installation position above the fixed pipe 52 . It is arranged at a height position (see FIGS. 4 and 12) that allows loading and unloading of the cargo 107 on the vessel 106 at the position of , so as not to interfere with the loading and unloading of the cargo 107 on the vessel 106. ing. Specifically, in this embodiment, each insertion pipe 54 is arranged at a height position during loading/unloading work, so that containers and the like are transported from the wharf 100 onto the vessel 106 by the carrier device 108 as shown in FIG. The work of transporting and loading the cargo 107 and the work of transporting and unloading the cargo 107 such as containers from the ship 106 onto the quay 100 are performed above the plurality of fixed pipes 52 (see FIG. 4) on the quay 100. , so as not to interfere with the loading and unloading operation of the cargo 107 . In this embodiment, the height position during unloading work is a height position where the upper end of the insertion pipe 54 is positioned slightly below the upper surface of the quay wall 100 .

In addition, the insertion pipe 54 is arranged at the height position during the loading and unloading work, so that the insertion pipe 54 is detached downward from the receiving space 19 inside the receiving pipe 12, thereby releasing the fixing of the protective fence 2 to the quay 100 and protecting it. The movement from the installation position of the fence 2 is permitted.

The insertion tube 54 has an insertion tube 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 an example of an insertion tube hole in the present invention.

The two first insertion pipe holes 55a are provided at a height position that matches the height position of the receiving pipe hole 12a of the receiving pipe 12 when the insertion pipe 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 55 a are provided in the upper end portion of the insertion tube main body 55 and pass through the tube wall of the insertion tube main body 55 . Also, 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 pipe holes 55b are provided at positions corresponding to the height position of a fixing pin 87 (described later) of the insertion pipe position fixing device 5 when the insertion pipe 54 is arranged at the wheel stop height position. there is The two second insertion tube holes 55 b 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 . Also, 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 upper end opening of the insertion tube main body 55 .

The handle portion 57 is a portion that is gripped by the operator in order to pull up the insertion tube 54 from the space inside the fixed tube 52 . This handle portion 57 is provided at the upper end portion of the insertion tube 54 . Specifically, the handle portion 57 is attached to the upper lid 56 of the insertion tube 54 so as to be vertically movable. The handle portion 57 is retained so as not to be detached from the upper lid 56 while projecting 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 positioned between the upper surface of the upper lid 56 and the handle portion 57. It is designed to be lowered with respect to the upper lid 56 to a position where the upper ends substantially match.

A plurality of insertion tube position fixing devices 5 are installed on the wharf 100 corresponding to each of the plurality of insertion tubes 54 . The plurality of insertion tube position fixing devices 5 are devices for fixing each of the plurality of insertion tubes 54 at the wheel stop height position. Each insertion tube position fixing device 5 has a fixed state in which the corresponding insertion tube 54 is fixed at the height position when the corresponding insertion tube 54 is placed at the wheel stop height position, and a fixed state in which the insertion tube 54 is fixed at that height position, and a state in which the insertion tube 54 is released from the fixed state and moved vertically. and a release state that allows movement of the insertion tube 54. As shown in FIG. 6, 7, 11 and 12 show the insertion tube position fixing device 5 in a simplified manner, and FIGS. 13 to 15 specifically show the configuration of the insertion tube position fixing device 5. It is

In the vicinity of the seaside edge 100a of the wharf 100, a plurality of recesses 101b are provided side by side along the seaside edge 100a. installed inside. Each recess 101b is formed so that the upper end of each burying hole 101a is recessed from the upper surface of the quay 100, and has a rectangular shape elongated in the direction along the sea-side edge 100a of the quay 100 when viewed from above. None.

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, as shown in FIG.

The base 82 consists 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 passing through the base 82 and four bolt insertion holes 82b.

A central hole 82 a is provided in the center of the base 82 . When viewed from above, the fixed tube 52 is arranged inside the central hole 82a so that the insertion tube 54 can move up and down through the central hole 82a.

The four bolt insertion holes 82b are provided in four directions away from the center hole 82a when the base 82 is viewed from above. Each bolt insertion hole 82 b is a hole through which an 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 the respective anchor bolts 88 are inserted through the corresponding bolt insertion holes 82b. A nut 89 is screwed onto each anchor bolt 88 and tightened, thereby fixing the base 82 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 82 a in the longitudinal direction of the base 82 . The first fixing device 83 and the second fixing device 84 are configured to be symmetrical to each other, and when the insertion pipe 54 is arranged at the above-mentioned wheel stop height position, the insertion pipe 54 is secured to the wheel stop from both sides thereof. 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, fixing pins 87, and position holding portions 87a.

The plurality of pin support plates 86 support the fixed pins 87 so as to be movable in the axial direction and rotatable around the axis. A plurality of pin support plates 86 of the first fixing device 83 are fixed upright to the base 82 at positions on one side of the central hole 82a in the longitudinal direction of the base 82, and are spaced apart in the longitudinal direction of the base 82. They are lined up open. Also, the plurality of pin support plates 86 of the second fixing device 84 are fixed upright to the base 82 at a position on the other side of the central hole 82a in the longitudinal direction of the base 82. They are lined up at intervals. Fixing pins 87 are inserted through the plurality of pin support plates 86 of each 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. Substantially through holes are provided respectively. In this embodiment, the first locking device 83 and the second locking device 84 each have three pin support plates 86 .

A pin support plate 86a arranged in 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 in the axial direction of the fixing pin 87 together with the fixing pin 87 as described later. The position holding portion passing groove 86b is a notch that is connected to a through hole provided in the central pin support plate 86a and extends 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. A pin support plate 86a arranged in the center of the three pin support plates 86 has a similar position holding portion passing groove 86b. is provided.

The fixing pins 87 of the first fixing device 83 extend in the longitudinal direction of the base 82 and are inserted through the through holes of the plurality of pin support plates 86 located on the one side with respect to the central hole 82a. The fixed pins 87 are supported by the plurality of pin support plates 86 so as to be movable in the axial direction (longitudinal direction of the base 82). The fixing pins 87 of the second fixing device 84 extend along the longitudinal direction of the base 82 and extend through the through holes of the plurality of pin support plates 86 located on the other side with respect to the central hole 82a. The fixing pins 87 are movably supported in the axial direction (longitudinal direction of the base 82 ) by the plurality of pin support plates 86 .

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

Further, when moving the insertion tube 54 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 pulled out from the corresponding second insertion tube holes 55b, thereby moving the insertion tube 54. to unlock. A 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 extracted from the corresponding second insertion pipe hole 55b is referred to as an extraction position (see FIG. 14).

The position holding portion 87a holds the axial position of the fixing pin 87 at the insertion position and the withdrawal position. Specifically, when the fixing pin 87 is inserted into the second insertion pipe hole 55b to fix the insertion pipe 54 at the wheel stop height position and assumes the insertion position, the position holding portion 87a at its insertion position. Further, the position holding portion 87a is arranged so that when the fixing pin 87 is pulled out from the second insertion tube hole 55b to allow the vertical movement of the insertion tube 54 and takes the above-mentioned extraction position, the fixing pin 87 in its withdrawn position.

The position holding portion 87a is provided on the fixing pin 87 so as to protrude outward from a predetermined position on the outer peripheral surface of the fixing pin 87. As shown in FIG. When the fixing pin 87 assumes the insertion position, as shown in FIG. 15, the position holding portion 87a is positioned between the center pin support plate 86a of the three pin support plates 86 and the insertion tube from the center pin support plate 86a. 54, and the pin support plates 86a, 86 regulate the movement of the position holding portion 87a in the axial direction of the fixing pin 87. As shown in FIG. As a result, the position holding portion 87a holds the axial position of the fixing pin 87 at the insertion position. 14, the position holding portion 87a includes the center pin support plate 86a and the pin farther from the insertion tube 54 than the center pin support plate 86a, as shown in FIG. The pin support plates 86a, 86 regulate the movement of the position holding portion 87a in the axial direction of the fixing pin 87. As shown in FIG. As a result, the position holding portion 87a holds the axial position of the fixing pin 87 at the removed position.

Further, when the fixing pin 87 is moved in the axial direction of the fixing pin 87 between the insertion position and the removal position, the position holding portion 87a faces upward and is arranged at a position corresponding to the position holding portion passage groove 86b. As shown, the fixing pin 87 is rotated about its axis so that the position holding portion 87a can pass through the position holding portion passage groove 86b, thereby allowing axial movement of the fixing pin 87. ing.

Next, a method of operating the outflow prevention device 1 according to this embodiment will be described.

First, when a storm surge occurs, as shown in FIG. , the plurality of protective fences 2 are fixed to the quay 100 via the insertion pipes 54 and the fixed pipes 52 of each fence fixing device 4 as shown in FIG. The insertion pipe 54 prevents the object 102 (see FIG. 2) on the wharf 100 from being swept away by the waves and flowing out to sea.

At this time, specifically, a plurality of protective fences 2 stored at a predetermined place are moved on the quay 100 and arranged at respective installation positions. During this movement, each protective fence 2 is moved along the upper surface of the quay 100 to the installation position by rolling the plurality of casters 14 while fixing each stand 16 of each protective fence 2 in the retracted posture. The installation position of each of the plurality of protective fences 2 is such that the plurality of protective fences 2 are arranged along the sea-side edge 100 a of the quay 100 and the receiving pipes 12 of the plurality of protective fences 2 are connected to the plurality of fixed pipes 52 . (see FIG. 12).

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

Then, the operator pulls up each of the plurality of insertion tubes 54 from the space inside the corresponding one 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 tube 54 with one hand, pulls up the insertion tube 54, and pulls the insertion tube 54 inside the receiving tube 12 of the corresponding protection fence 2. is inserted into the receiving space 19 and placed at the insertion height position (see FIG. 7). Also, 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 detached position (see FIG. 11) with the other hand. The insertion member 44 is inserted through the two receiving tube holes 12 a of the receiving tube 12 and the two first insertion tube holes 55 a of the insertion tube 54 . Thereby, the insertion pipe 54 is held at the insertion height position, and the protective fence 2 is fixed to the quay wall 100 via the insertion pipe 54 and the fixing pipe 52 .

Further, as shown in FIG. 3, when the cargo 107 is loaded and unloaded onto 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 to protect the cargo. While moving the fence 2 to another place, each insertion pipe 54 is arranged at a height position during loading and unloading work that allows loading and unloading of the cargo 107 to the ship 106 at a position above the plurality of fixed pipes 52 on the wharf 100. .

At this time, the operator moves the inserting member 44 of each holding device 3 from the inserting position to the removing position to remove the inserting member 44 from the receiving pipe hole 12a and the first inserting pipe hole 55a. When the operator releases the insertion member 44 that has been moved to the detached position, the insertion member 44 rotates downward around the shaft portion 49 by its own weight and assumes the hanging posture. Each insertion tube 54 is released from the insertion height position by the removal of the insertion member 44 from the receiving tube hole 12a and the first insertion tube hole 55a, and descends by its own weight. Withdraws downward and descends inside the corresponding fixed tube 52 . When the lower end of each insertion tube 54 comes into contact with the lowering stop portion 53, each insertion tube 54 stops at the height position during the loading/unloading operation. By detaching each insertion pipe 54 from the corresponding receiving pipe 12 , the fixing of each protective fence 2 to the quay 100 by the insertion pipe 54 and the fixing pipe 52 is released. After that, the worker rotates the stand 16 of each protective fence 2 upward from the supporting posture to fix it in a retracted posture, and moves each protective fence 2 to a place outside the range where the loading and unloading work is performed. In addition, each insertion pipe 54 is arranged below the upper surface of the wharf 100 at the height position during the loading/unloading work, and does not interfere with the loading/unloading work of the cargo 107 onto the vessel 106 above it.

In addition, during normal times when no storm surge is occurring and cargo 107 is not being loaded and unloaded from ship 106, each insertion pipe 54 is located on quay 100 on the seaward side from that insertion pipe 54, as shown in FIG. Each insertion pipe 54 is arranged and fixed at a height position of the car stop projecting upward from the upper surface of the quay 100 to the extent that it is possible to prevent the car from advancing to the sea, and the insertion pipe 54 prevents the car from the quay 100 to the sea. 104 is prevented from falling. Also at this time, each protection fence 2 is not installed in the installation position on the quay 100, but is arrange|positioned in another place.

When arranging each insertion tube 54 at the wheel stop height position, the operator grasps the handle portion 57 (see FIG. 13) at the upper end of each insertion tube 54 and moves the insertion tube 54 inside the corresponding fixed tube 52. pull out of space. When pulling up the insertion tube 54, the fixing pins 87 of the first fixing device 83 and the second fixing device 84 are arranged at the withdrawal positions, and the position holding portions 87a provided on the fixing pins 87 are turned sideways. Each fixing pin 87 is rotated about its axis so as to fall down vertically, and the position of the fixing pin 87 in the axial direction is held 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 at the removed position.

Then, when the insertion tube 54 is pulled up to the wheel stop height position, the fixing pins 87 of the first fixing device 83 and the second fixing device 84 of the insertion tube position fixing device 5 are inserted into the corresponding second insertion tube holes of the insertion tube 54 . 55b and placed at the insertion position, thereby fixing the insertion tube 54 at the height position of the wheel stop so as not to drop from the height position of the wheel stop.

When inserting the fixing pin 87 into the second insertion pipe 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. , the fixing pin 87 is moved along its axial direction toward the insertion tube 54 . As a result, the position holding portion 87a passes through the position holding portion passage groove 86b, and the fixing pin 87 is inserted into the second insertion pipe 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 falls sideways, and the center pin support plate 86a and the one closer to the insertion tube 54 are connected. Movement of the position holding portion 87a in the axial direction of the fixing pin 87 is restricted between the pin support plate 86a and the pin support plate 86a closer to the insertion tube 54, thereby moving the fixing pin 87 to the insertion position. to hold.

By fixing each insertion tube 54 at the height position of the car stop as described above, the outflow prevention device 1 becomes the car stop form shown in FIG. prevents the automobile 104 from falling into the sea.

In this embodiment, when a storm surge occurs, an operator pulls up the insertion tube 54 from the space inside the fixed tube 52 and inserts it into the receiving space 19 inside the receiving tube 12 of the protective fence 2, and then inserts the insertion tube 54 by hand. , the inserting 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 moved to the insertion height position. A single person can perform the work of holding it in position, and only by performing this work, the protective fence 2 can be fixed on the quay 100 to prevent the placed object 102 on the quay 100 from flowing out to the sea. It is possible to quickly prevent the objects 102 on the wharf 100 from flowing out when a storm surge occurs.

Specifically, in the outflow prevention device 1 according to this embodiment, the insertion pipe 54 is inserted into the space inside the fixed pipe 52 embedded in the quay 100 so as to be vertically movable. The quay wall 100 can be obtained simply by 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. A protective fence 2 can be fixed on top, and the protective fence 2 can prevent the objects 102 placed on the wharf 100 from flowing out to the sea. Therefore, in the outflow prevention device 1 according to the present embodiment, it is not necessary to carry out a conventional outflow prevention wall by transporting a plurality of posts from a storage place and erecting them on the quay, which takes a lot of time. be.

Further, for example, the receiving tube hole 12a is provided at a height position near the base plate 20 in the receiving tube 12, and the first inserting tube hole 55a is located at an intermediate position in the vertical direction of the inserting tube 54. An insertion member that is provided at a height position that coincides with the receiving tube hole 12a at a height position near the base plate 20 when arranged at the insertion height position, and that can be inserted into and removed from the receiving tube hole 12a and the first insertion tube hole 55a. 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 hold the insertion tube 54 at the insertion height position by inserting the insertion member 44 . 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 portion of the insertion tube 54 and the first insertion tube hole 55a and the receiving tube hole 12a are separated from each other. Because of the large difference in height between the pipes, the operator must hold the handle portion 57 to hold the insertion tube 54 at the insertion height position and insert the insertion member 44 through the receiving tube hole 12a and the first insertion tube hole 55a. It is difficult for one person to do this alone, and a worker other than the worker who grips the handle portion 57 and holds the insertion tube 54 at the insertion height position must insert the insertion member 44 into the receiving tube hole 12a and the first insertion tube hole. 55a must be inserted.

On the other hand, in the outflow prevention device 1 according to this embodiment, the handle portion 57 is provided at the upper end portion of the insertion pipe 54, and the receiving pipe 12 of the protective fence 2 is provided with two pipes penetrating the pipe wall at the upper end portion. Since the receiving tube hole 12a is provided and the insertion tube 54 has two first insertion tube holes 55a provided at the upper end thereof, the operator grasps the handle portion 57 to move the insertion tube 54 to the insertion height position. When pulled up and the two first insertion holes 55a are aligned with the two receiving holes 12a, the handle portion 57, the two receiving holes 12a, and the two first insertion holes 55a are arranged at positions close to each other. be done. Therefore, the operator holds the handle portion 57 with one hand to hold the insertion tube 54 at the insertion height position, and moves the insertion member 44 of the holding device 3 to the insertion position with the other hand. It is possible to perform the work of inserting through the two first insertion tube holes 55a and the two receiving tube holes 12a. For this reason, when a storm surge occurs, the operator places the insertion pipe 54 at the insertion height position, holds the insertion pipe 54 at the insertion height position with the holding device 3, and fixes the protective fence 2 on the quay 100. can be done quickly by one person. Therefore, it is possible to quickly prevent the objects 102 placed on the wharf 100 from flowing out when a storm surge occurs.

In addition, in the outflow prevention device 1 according to the present embodiment, the space inside the fixed pipe 52 is such that the insertion pipe 54 is positioned below the receiving pipe 12 and the vessel 106 is positioned above the fixed pipe 52 on the quay 100 . It has a depth that allows the cargo 107 to be lowered to a loading/unloading height position. Therefore, when loading and unloading the cargo 107 on the vessel 106, the insertion member 44 of the holding device 3 is moved to the above-described detachment position to be 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 the height position during the loading and unloading work and removed downward from the receiving pipe 12 of the protective fence 2. As a result, the protective fence 2 is unfixed by the insertion pipe 54 and protected. The fence 2 can be moved from the installation position on the quay 100 to another place. In addition, the loading and unloading work can be prevented from being hindered by the insertion pipe 54 at the height position during the loading and unloading work. Therefore, the cargo 107 can be smoothly loaded and unloaded onto the ship 106 .

In addition, in the outflow prevention device 1 according to this embodiment, the fixed pipe 52 and the insertion pipe 54 of the outflow prevention device 1 are used during normal times when a storm surge does not occur and the cargo 107 is not loaded or unloaded onto the ship 106. As a result, it is possible to prevent the automobile 104 from falling from the wharf 100 of the harbor into the sea. Specifically, in normal times, the insertion tube 54 is protruded from the inside of the fixed tube 52 onto the quay 100 and arranged at the car stop height position, and by switching the insertion tube position fixing device 5 from the released state to the fixed state, The insertion pipe 54 can be fixed at the height position of the car stopper, and the insertion pipe 54 fixed at the height position of the car stopper can prevent the car 104 from advancing toward the sea side and prevent the car 104 from falling into the sea. can.

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

For example, a spill prevention device according to the present invention is not necessarily limited to taking the form of a bollard. That is, the outflow prevention device according to the present invention does not necessarily have an insertion tube position fixing device for fixing the insertion tube at the wheel stop height position. That is, the insertion tube 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 does not necessarily have to be provided with a stop portion for stopping the descent of the insertion pipe at the height position during the loading and unloading work. That is, the insertion tube may be lowered 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 should have a depth that allows the fixed pipe to be lowered to the height position during the unloading operation.

Also, the configuration of the protection fence is not necessarily limited to that shown in the above embodiment. For example, the number of beams in the connection part of the protective fence, the vertical interval between the beams, the connection structure between the beams located on both sides of the support and the receiving pipe, the number and arrangement of casters, and other configurations, the above-mentioned implementation Various configurations other than the configuration shown in the form can be applied.

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

In the present invention, that the protective fence is movable on the quay means that the protective fence can be moved by any method regardless of the mode of movement or means of movement. Therefore, the protective fence is not necessarily limited to one that can move on the quay by rolling its casters. For example, the protective fence in the present invention does not have casters and may be installed by being placed on the installation position on the quay, or it may be dragged or pushed on the upper surface of the quay. Alternatively, it may be a protective fence that can be lifted from the upper surface of the quay and moved.

1 Outflow prevention device 2 Protective fence 3 Holding device 5 Insertion tube position fixing device 12 Receiving tube 12a Receiving tube hole 42 Supporting part 44 Insertion member 52 Fixed tube 54 Insertion tube 55a First insertion tube hole (insertion tube hole)
57 Handle 100 Quay 100a Seaside Edge 102 Placement 104 Automobile 106 Ship 107 Cargo

Claims (3)

An outflow prevention device installed on a quay wall of a harbor to prevent objects placed on the quay wall from flowing out to the sea,
a fixed pipe embedded in the quay so as to extend in the vertical direction;
an insertion tube inserted vertically movably into the space inside the fixed tube;
A protective fence that is configured to be movable on the quay and prevents the outflow of the placed object when installed at an installation position on the quay so as to extend along the sea-side edge of the quay, a receiving pipe arranged to extend vertically above the fixed pipe and capable of receiving the insertion pipe when the protective fence is installed at the installation position;
The protection fence is provided on the protection fence, and when the insertion tube projects upward from the fixed tube and is placed at an insertion height position to be inserted into the receiving tube, the protection fence is moved through the insertion tube and the fixed tube. a holding device for holding the insertion tube at the insertion height position so as to be fixed to the quay;
a handle provided at the upper end of the insertion tube and gripped to pull up the insertion tube from 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 able to be inserted through the receiving tube hole and the insertion tube hole, and is inserted through 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 by means of, an insertion position attached to the receiving tube at which the insertion member is inserted through the receiving tube hole and the insertion tube hole, the receiving tube hole and and a support part that supports the insertion member so as to be movable between a disengagement position and a disengagement position where the outflow prevention device is disengaged from the insertion tube hole. The space inside the fixed pipe has a loading/unloading work height that allows the loading/unloading work of the cargo to/from the ship at a position above the fixed pipe on the wharf with the insertion pipe positioned below the receiving pipe. 2. The spill prevention device of claim 1, having a depth that allows it to be lowered to a full height position. When the insertion pipe is placed at a height position where the car stop protrudes above the quay from the space inside the fixed pipe to the extent that it is possible to block the movement of the automobile toward the sea side from the insertion pipe, the insertion pipe is inserted. 3. The outflow prevention device according to claim 1, further comprising an insertion tube position fixing device configured to be switchable between a fixed state of fixing at the height position of the bollard and a released state of releasing the fixation.

Images