JP6724069B2 - Fixed structure of high pressure gas container and hydrogen trailer - Google Patents

Description

The present invention relates to a high-pressure gas container fixing structure for fixing a plurality of high-pressure gas containers, and a hydrogen trailer for mounting and transferring a plurality of hydrogen-filled high-pressure gas containers.

As hydrogen vehicles (including fuel cell vehicles) become widespread, it will be necessary to provide hydrogen stations for supplying hydrogen to them. In order to ship hydrogen to hydrogen stations in various places, a hydrogen trailer suitable for land transportation of hydrogen is required. It should be noted that the hydrogen trailer is not only used for transporting hydrogen to the hydrogen station, but can also be stored at the hydrogen station and used as a supply source for the hydrogen vehicle.

An example of a vehicle that can be used as a hydrogen trailer or the like is described in Patent Document 1 below. The vehicle described in the document 1 has a three-dimensional pedestal mounted on a loading platform and a plurality of high-pressure gas containers mounted on the pedestal. In each of the high-pressure gas containers, the neck parts at both ends (the main valve side serving as a gas supply port and the opposite side) of the cylindrical body part (container body) are restrained at the front and rear positions of the gantry. It is fixed by a member. A plurality of high-pressure gas containers are horizontally arranged and fixed to the restraining member, and a plurality of high-pressure gas containers are vertically stacked in a form in which another container is arranged right above each container.

An example of the restraint member that fixes the neck portions at both ends of the high-pressure gas container is also described in Patent Document 2. FIG. 10 shows a usage state of the restraint member shown in Document 2. The small diameter neck portion at the end of the cylindrical body portion of the high-pressure gas container is fixed by restraining it with a restraining member. The restraint member is composed of a square plate having a sufficient thickness and a U-shaped bolt attached inside the thickness of the plate. The bolt is attached to the square plate while being hooked in the groove on the outer circumference of the neck portion. Since the vertical and horizontal dimensions of the plate are larger than the diameter of the body of the high-pressure gas container, the plates can be fixed side by side so that multiple high-pressure gas containers can be fixed without contacting each other. is there.

Japanese Patent Publication No. 8-510428 Japanese Patent No. 4413776

When a high-pressure gas container is mounted on a trailer as described in Patent Document 1, it is desirable that a plurality of containers can be compactly arranged and stably fixed. If it can be arranged compactly, a large number of high-pressure gas containers can be installed in a limited space, and in the trailer, the truck can be downsized or the center of gravity can be lowered. Further, if stable fixing is easy, the structure for supporting the container can be simplified.

In this regard, there is still room for improvement in the fixing structure of the high-pressure gas container described in Patent Documents 1 and 2. In the example of the document 1, since another high-pressure gas container is arranged directly above the high-pressure gas container, when arranging a plurality of containers in the vertical direction, the diameter of each container and the container The total height dimension of the clearance to avoid mutual contact becomes indispensable, and the mounting height tends to increase. Also in the example of the document 2, since another plate (constraint member) is placed on the plate which is the restraint member to arrange the high-pressure gas containers in a plurality of stages vertically, the mounting height is increased. This is the same as the case of Document 1.

The invention according to the claims has a structure for fixing a high-pressure gas container, which is advantageous in compactly arranging a plurality of high-pressure gas containers compactly in a limited space and stably fixing it, and a preferable hydrogen having such a fixing structure It provides a trailer.

The fixing structure for a high-pressure gas container according to the invention is a structure for fixing a plurality of high-pressure gas containers having a tubular body, and a regular hexagon in which the distance between two parallel parallel sides is equal to or larger than the diameter of the body. It is characterized in that a restraint member having a contoured outer shape is fitted to each high-pressure gas container, and the restraint member is connected to another similar restraint member or a fixing frame.
The constraining member whose outer shape is a regular hexagon (regular hexagon or substantially regular hexagon) is, for example, the constraining member 10 shown in FIGS. 1 and 2, and is used in the high-pressure gas container 1 having a tubular body. It is used by being fitted and connected to another restraint member 10 as shown in FIG. 3 or a fixing frame 30 shown in FIG.
When the above-mentioned restraint member is fitted to the outside of each high-pressure gas container (any one of them, for example, the cylindrical body or the small-diameter necks at both ends thereof), a plurality of high-pressure gas is supplied as shown in FIG. When arranging the gas containers so that they do not contact each other, it is possible to keep the distance between the center lines of the containers in the height direction (dimension in the height direction per step) below the diameter of each container. That is, as shown in FIG. 9( a ), when the restraint member 10 according to the invention is used, the distance D in the height direction between the center lines of the container 1 can be set to be equal to or smaller than the diameter of (the body portion 1 a of) the container 1. it can. If another container 1 is arranged directly above one container 1 as in the conventional case (FIG. 9(b)), the distance D′ in the height direction of the container 1 is always equal to or larger than the diameter of the container 1, so that the restraint is performed. The use of the member 10 allows a compact arrangement of the container 1. When the constraining member 10 is used by changing the orientation of the hexagons by 90° from the example of FIG. 9(a), FIG. 3 or the like, the distance between the center lines of the adjacent containers on the left and right is the diameter of each container. Can be kept below.
If the space in the up-down direction or the left-right direction can be narrowed as described above, a large number of high-pressure gas containers can be effectively installed in a limited space. When a large number of high-pressure gas containers are mounted on a traveling vehicle such as a hydrogen trailer, this leads to downsizing of the vehicle and lowering the center of gravity of the whole of the container to increase traveling safety. Even when the high-pressure gas container is installed on another object or area instead of on the hydrogen trailer, the fixing structure of the invention enables a compact arrangement of a large number of containers.

In the above fixing structure, in particular, each of the high pressure gas containers has a neck portion having a diameter smaller than that of the body portion at the end of the tubular body portion, and the restraint member is fitted to the neck portion. It is preferable that it is one.
It is easier for the neck portion, which has a smaller diameter than the body portion, to fit the restraining member and restrain the high pressure gas container. Even if a U-shaped bolt or the like is used for restraint as exemplified in Patent Document 2 (FIG. 10), the size of the bolt can be made smaller than in the case of restraining the body portion, and the handling becomes easy. .. In addition, it is easy to attach a reinforcement structure to the neck to prevent it from being scratched when restrained.

In addition, a connecting component or a connecting hole that enables connection with the other restraint member or the fixing frame is provided on each of the peripheral portions of the six sides forming the outer shape (regular hexagonal shape) of the restraint member. preferable. For example, as shown in FIG. 1A, it is preferable to provide a bolt coupling hole 11a on each side of the hexagon.
When the connecting parts and the connecting holes are provided on each side of the hexagonal shape of the restraint member as described above, the restraint member can be easily joined to another restraint member or the fixing frame. For example, by using the coupling hole 11a of FIG. 1(a) and inserting a bolt 11b between the adjacent restraining members 10 as shown in FIG. 3, a plurality of high-pressure gas containers are arranged vertically and horizontally. Can be connected. Further, the high pressure gas container can be connected to the fixing frame 30 as shown in FIG. 6 by utilizing the coupling hole 11a at a portion which is not adjacent to the other restraint member 10.

When each high-pressure gas container has a neck portion having a smaller diameter than the body portion at the end of the tubular body portion, the restraint member, a short cylindrical outer peripheral frame having a hexagonal cross section, It is preferable to have a panel fixed to the inside of the outer peripheral frame and a bracket attached to the panel and attached to the neck portion of each high-pressure gas container.
The restraint member 10 shown in FIG. 1 and the like is an example thereof, and is a short cylindrical outer peripheral frame 11 having a hexagonal cross section, a panel 12 fixed to the inner side thereof, a panel 12 fixed to the panel 12, and a high pressure gas container 1 of each. It has a bracket 13 attached to the neck portion 1b.
Such a restraint member can be inexpensively configured as a lightweight member using a commercially available metal material such as a steel plate. Further, if the U-shaped bolt described in Patent Document 2 or the like is attached to the bracket attached to the panel by welding or a fastener, or another fastening tool is attached, for example, in the state of FIG. The neck can be restrained appropriately.

A state in which the restraint member fitted to the high-pressure gas container is overlapped with another restraint member fitted to another high-pressure gas container such that any one of the six peripheral edges of the outer shape is overlapped. It is preferable that one side or a plurality of fixing frames is connected to the one or more fixing frames in a state in which any side that is not connected is overlapped. That is, it is preferable that the restraint members, and the restraint member and any one of the fixing frames are coupled to each other as shown in FIGS. 5 and 6, for example.
When the restraint member is coupled in such a state, the plurality of high pressure gas containers are strongly connected to each other and stably fixed. In the state where the restraint members are coupled to each other, the hexagonal peripheral portions attached to each high-pressure gas container are in a honeycomb shape and are in contact with each other through a plurality of inclined surfaces having different directions, so that, for example, at the same height. This is because it is unlikely that the high-pressure gas containers in each of the arranged stages will shift horizontally.

Each of the restraint members fitted in the high-pressure gas container is joined to another restraint member and a fixing frame with the axis centered horizontally, and is joined to an upper part of the uppermost restraint member. It is also preferable that the structure also serves as a lifting member. That is, as in the example of FIG. 5, the restraint members 10 (and the high-pressure gas container 1) are made to have a horizontal axis and the restraint members 10 and the restraint members 10 and the fixing frame 30 are coupled to each other, and the uppermost restraint is performed. The upper fixing frame 40 also serving as a lifting member is coupled to the upper portion of the member 10.
With the above configuration, the high-pressure gas containers at each stage are arranged side by side in the horizontal direction (a group of four or five in the example of FIG. 5), or the entire high-pressure gas container connected in the horizontal direction and the vertical direction (FIG. 5). In this example, a set of 23) can be easily lifted by using an upper fixing frame that is connected to the upper part. If the high-pressure gas container can be easily lifted in such a manner, the work of connecting and fixing a plurality of containers and releasing the connected state can be easily performed in a short time. It should be noted that the upper fixing frame, which also serves as the lifting member, is integrally provided with a connecting piece (reference numeral 44 in FIG. 5) having downward oblique sides that are combined with the upper oblique sides of the respective restraining members. Good.

As a hydrogen trailer for loading and transferring a plurality of high-pressure gas containers filled with hydrogen, it is preferable that a plurality of the containers are connected by using any one of the fixing structures described above and are mounted on a trolley.
In such a hydrogen trailer, a plurality of high-pressure gas containers are housed in a compact space and strongly and stably connected to each other. Since the mounting height of the high-pressure gas container can be suppressed, there is also an advantage that the traveling of the trailer is stabilized by setting a low center of gravity.

According to the fixing structure of a high pressure gas container according to the invention, when arranging a plurality of high pressure gas containers, it is possible to narrow a vertical or horizontal interval and effectively install a large number of high pressure gas containers in a limited space. can do. Since the restraint members or the restraint member and the fixing frame are coupled in a state of contacting each other through the plurality of slopes having different directions, the plurality of high-pressure gas containers are strongly connected and stably fixed.
According to the hydrogen trailer of the present invention, a plurality of high-pressure gas containers are housed in a compact space, strongly and stably connected to each other, and mounted. It is also advantageous in downsizing or lowering the center of gravity of the vehicle.

It is a perspective view which shows the high pressure gas container 1 and the restraint member 10 used for the fixing structure of this invention. FIG. 1A shows an outer peripheral frame 11 and a panel 12 of a restraint member 10, and FIG. 1B shows a pair of restraint members 10 including a bracket 13 and a U-shaped bolt 14 and one high-pressure gas container 1. Indicates. FIG. 3 is a perspective view showing a state in which restraint members 10 are fitted to neck portions 1b at both ends of the high-pressure gas container 1, respectively. FIG. 3 is a perspective view showing a connected body 20 of the high-pressure gas container 1 in which a plurality of high-pressure gas containers 1 are horizontally connected and a plurality of high-pressure gas containers 1 are vertically connected using the restraint member 10. FIG. 3 is a perspective view showing a fixing frame 30 for fixing a plurality of high pressure gas containers 1 inside the frame. FIG. 6 is a perspective view showing a fixing procedure when a plurality of high-pressure gas containers 1 (connecting bodies 20) are coupled and fixed using the restraint member 10 and the fixing frame 30 and the like. It is a perspective view which shows the structure 50 of the high pressure gas container 1 fixed by the procedure shown in FIG. FIG. 7 is a side view showing a hydrogen trailer A equipped with a plurality of high-pressure gas containers 1 fixed as shown in FIG. 6. FIG. 8 is a side view showing a hydrogen trailer B different from that of FIG. 7 in which a plurality of high pressure gas containers 1 fixed as shown in FIG. 6 are mounted. 9A and 9B are schematic diagrams showing a state in which the high-pressure gas container 1 is horizontally and vertically arranged and connected to each other. FIG. 9A is an example of using the restraint member 10 according to the invention, and FIG. 9B is an example of a conventional restraint member. Indicates. It is a perspective view which shows the use condition about the restraint member described in patent document 2.

1 to 8 show an embodiment of the invention. In this example, a fixed structure in which a plurality of high-pressure gas containers in which a high-pressure gas such as hydrogen is filled in a cylindrical body is horizontally aligned using a restraining member and is joined and fixed in a compactly arranged state. Indicates.

First, FIG. 1 shows a high-pressure gas container 1 and a restraint member 10 attached thereto.
The high-pressure gas container 1 is a container having a cylindrical (substantially cylindrical) body portion 1a as shown in FIG. 1B, and a neck portion 1b having a diameter smaller than that of the body portion 1a provided at both ends thereof. Therefore, the high-pressure gas is filled in the body portion 1a. The high-pressure gas container 1 is a composite container in which a fiber layer such as carbon fiber is laminated on the outside of a container made of a lightweight metal such as aluminum alloy, and hydrogen or the like can be filled inside at a pressure of 350 atm or more. A main valve (not shown) for supplying gas is provided on one of the neck portions 1b at both ends.

The restraint member 10 mounted on the neck portion 1b of the high-pressure gas container 1 is, as shown in FIG. 1(b), fixed to the inside of the outer peripheral frame 11 of a short cylinder having a regular hexagonal cross section by welding. The panel 12 and the bracket 13 or the like attached to one surface of the panel 12 by welding, bolts or the like (not shown). The outer peripheral frame 11, the panel 12, and the bracket 13 are all made of steel plate or the like. For example, the outer peripheral frame 11 may be formed by bending a strip-shaped steel plate (strip steel) and welding the ends to each other to form a regular hexagonal (a curved portion at each corner) short tube. The distance between the two parallel surfaces (outer surface) of the outer peripheral frame 11 which face each other is made larger than the diameter of the body portion 1 a of the container 1. Further, as shown in FIG. 1A, two peripheral through-holes 11a for coupling are provided in the peripheral edge portion of each side of the outer peripheral frame 11 (each of the six sides forming the hexagon).

The panel 12 and the bracket 13 are provided with a hole 12a through which the neck portion 1b of the container 1 can be inserted, at a central position of the outer peripheral frame 11 in a state of being integrated with the restraining member 10. The panel 12 is also provided with an observation hole 12b so that the body portion 1a and the like of the container 1 can be seen from the outside (end side). Further, as the bracket 13, a steel plate having a sufficient thickness is used, and a U-shaped bolt 14 is passed in the thickness direction thereof, and the nut 15 can be fastened to the bracket 13.

If the neck portion 1b of the high-pressure gas container 1 is passed through the central hole of the panel 12 and the bracket 13 and the bolt 14 is hung on the neck portion 1b and passed through the bracket 13, the bolt 14 is fixed with the nut 15 (see FIG. (Refer to (b)), and the restraint member 10 will be in the state fitted in the neck part 1b. FIG. 2 shows a state in which the restraint members 10 are fitted to both ends of the high-pressure gas container 1 in this way. Regarding the pair of restraint members 10 fitted in one high-pressure gas container 1, the outer peripheral frame 11 has no angle difference and each side of the hexagon is in the same plane.

The restraint member 10 preferably includes a bearing structure including a spherical member so that the restraint member 10 can follow the change in the angle of the neck portion 1b due to the deflection of the container 1 or the like. Further, in order to deal with the possibility that the length of the container 1 may change depending on the temperature or the pressure, one of the pair of restraint members 10 used for one container 1 slidably supports the neck portion 1b. Good thing.

As shown in FIG. 2, the high-pressure gas container 1 in which the restraint members 10 are fitted at both ends is made compact by connecting the restraint members 10 to each other with another similar container 1. Can be connected and arranged. FIG. 3 shows a connecting body 20 in which a plurality of high-pressure gas containers 1 are arranged side by side and in a plurality of stages above and below in parallel with each other so that the axis of the restraint member 10 is horizontal and the two are not in contact with each other. There is. It is preferable that the original valves of the respective containers 1 are connected in the same direction.
In this example, the restraint members 10 (peripheral frames 11) are arranged so that two sides are vertical, and the restraint members 10 of the adjacent high-pressure gas containers 1 are joined to the left and right and diagonally above and diagonally below. ing. That is, one side of the outer peripheral frame 11 that is adjacent to and in contact with each other is joined by mounting the bolts and nuts 11b in the through holes 11a provided in each side.

When stacking a plurality of stages of containers 1 vertically, as shown in the figure, spaces for half of the restraint members 10 are left at each end on every other stage, and a regular hexagon is divided into halves. An alternative frame 18 having a trapezoidal outline may be combined. The substitute frame 18 is also provided with through holes 18a on each side and is used to connect with the adjacent outer peripheral frame 11. Although it is not always necessary to attach such a substitute frame 18 to the empty space, the attachment strength of the connecting body 20 is improved by the attachment.

When the connecting body 20 as shown in FIG. 3 is put in the fixing frame 30 as shown in FIG. 4 and connected to it, the strength of the connection is further increased. The fixing frame 30 is formed by attaching two end frames 32 and 33 made of shaped steel and extending upward to the upper surface of a base plate 31 made of a steel plate. Side support columns are integrally provided at left and right positions of the end frames 32 and 33, and through holes 32a and 33a are formed in the support columns, respectively. On the upper surface of the base plate 31, there are provided a plurality of support frames 34 having two symmetrical sides with an apex angle of 120° at a position directly below each of the end frames 32 and 33 at intervals. Through holes 34a are also formed on each side. The through holes 32a, 33a, 34a are located at positions communicating with the through holes 11a of the restraining member 10 (outer peripheral frame 11) located at the left and right ends and the lowermost stage of the coupling body 20 of FIG. 3 or the through holes 18a of the substitute frame 18. , For connecting the connecting body 20 and the fixing frame 30 through bolts (not shown).

The connecting body 20 (FIG. 3) of the high-pressure gas container 1 and the fixing frame 30 (FIG. 4) can be connected as shown in FIG. 5, for example. That is, as shown in FIG. 3, the connecting body 20 formed by combining a plurality of high-pressure gas containers 1 is incorporated into the end frames 32 and 33 of the fixing frame 30 of FIG. 4 and the through holes are formed as described above. The connecting body 20 is connected to the fixing frame 30 by using the above, and the upper fixing frame 40 is further connected to the upper end portion. The upper fixing frame 40 has parallel arms 41 and 42 extending left and right attached to a connecting beam 43. The lower surface of each arm 41 and 42 has two symmetrical sides with a vertical angle of 120° at the bottom. A plurality of downwardly facing support frames 44 having the above are provided at intervals. Through holes 44a are also formed in each of the lower sides of the support frames 44. The through holes 44a are communicated with the through holes 11a of the uppermost restraining member 10 (outer peripheral frame 11) in the coupling body 20 to form bolts. (Not shown) can be connected. Further, both ends of each arm 41, 42 can be connected to the end frames 32, 33 of the fixing frame 30 by bolts. When the respective bolts are connected to each other, the connected body 20 of the high-pressure gas container 1 is integrated with the fixing frames 30 and 40 on both the left and right sides and the upper and lower sides, and is stably fixed. Becomes FIG. 6 shows a structure 50 to which the connecting body 20 and the like are fixed as described above.

FIG. 5 exemplifies a mode in which a plurality of high pressure gas containers 1 that are horizontally connected and a plurality of high pressure gas containers 1 that are vertically connected are collectively housed in a frame of a fixing frame 30. If the upper fixing frame 40 is provided with a portion suitable for lifting and the mechanical strength of the frame 40 is sufficiently high (and other reinforcing means is also used), a plurality of connected bodies 20 are formed. The high-pressure gas containers 1 can be collectively lifted and housed in the frame of the fixing frame 30 at one time.
However, the high-pressure gas container 1 is not a plurality of stages, but is joined to the lower portion of the upper fixing frame 40 in stages, for example, and is lifted and then housed in the frame of the fixing frame 30 (the upper and lower restraining members in each case). It is also possible to perform the coupling in the state of FIG. 6 by repeating the procedure of performing coupling between 10). In any case, if the upper fixing frame 40 can also serve as a hoisting member, the work of hoisting the high-pressure gas container 1 and accommodating it in the frame of the fixing frame 30 can be easily performed.

FIG. 7 shows a hydrogen trailer A which is one embodiment of the invention. The hydrogen trailer A shown in the figure is a means for supplying hydrogen to a hydrogen vehicle (including a fuel cell vehicle) that uses hydrogen as a fuel, and is equipped with a high-pressure gas container 1 filled with hydrogen and transported to a hydrogen station. Also, it is placed in a hydrogen station to supply hydrogen to hydrogen vehicles. During transportation, it is driven by being pulled by a tractor as shown in the figure.

The hydrogen trailer A of FIG. 7 has a plurality of high-pressure gas containers 1 fixed and mounted on the carriage in the state of FIG. 6 (structure 50). That is, the high-pressure gas container 1 in which the restraint members 10 shown in FIG. 1 are fitted to the neck portions 1b at both ends as shown in FIG. 2 is joined to the restraint members 10 to form the connected body 20 shown in FIG. While being housed in the frame of the fixing frame 30 and connected thereto, the upper fixing frame 40 is connected to the upper end portion as shown in FIG. 5 to obtain the state of FIG. 6, and one set of the structure 50 thereof, the high pressure gas container 1 It is mounted on the dolly so that the axis of the is oriented front and back. Such a hydrogen trailer A is preferable in that a plurality of high-pressure gas containers 1 are mounted compactly (in particular, suppressing the total height) and firmly fixed.

FIG. 8 shows another hydrogen trailer B which is also an aspect of the invention. Although it is used for the same purpose as the hydrogen trailer A in FIG. 7, the hydrogen trailer B in FIG. 8 has two sets of structures 50 in which a plurality of high pressure gas containers 1 are connected as shown in FIG. It is mounted at intervals. In the illustrated example, the structure 50 attached to the front position of the trolley has a smaller number of upper and lower stacking stages of the high-pressure gas container 1 as compared with the rear structure (the structure 50 of FIG. 6).

The high-pressure gas container 1 is fixed in each of the mounted two sets of structures 50 in the same direction, but the front structure 50 and the rear structure 50 have different directions of the high-pressure gas container 1. .. That is, in the structure 50 placed in front of the trolley, all the containers 1 face the original valve side backward, and in the structure 50 placed in the rear, all the containers 1 face the original valve side forward. .. That is, all the containers 1 in the front structure 50 and all the containers 1 in the rear structure 50 are arranged such that the original valve sides face each other. A space is provided between the front and rear structural bodies 50 so that an operating space 55 for an operator to insert can be provided between the front and rear sets of containers 1.

On the side of the main valve of each high-pressure gas container 1, it is necessary to perform the valve operation related to the supply/stop of hydrogen, but by doing the above, the valve operation for all the containers 1 of both the front and rear groups is performed as described above. The operation can be performed efficiently in the operation space 55 at a certain place. Particularly in a large hydrogen trailer, there may be a case where three or more sets of the structure 50 are mounted, and in such a case, the main valve side of the container 1 sandwiches the operating space between any two sets adjacent to the front and rear. It is good to arrange so as to face each other.
In each of the examples of FIGS. 7 and 8, various instruments and operation valves connected to the main valve of the high-pressure gas container 1 via piping are located near the rear end of the carriage. It is good to install them all together.

1 High-pressure gas container 1a Body part 1b Neck part 10 Restraint member 11 Outer peripheral frame 11a Through hole 12 Panel 13 Bracket 14 U-shaped bolt 20 Coupling body 30 Fixing frame 40 Upper fixing frame (lifting member)
50 Structure AB hydrogen trailer

Claims (7)

A fixing structure of a high-pressure gas container for fixing a plurality of high-pressure gas containers having a tubular body,
A restraint member having a regular hexagonal outer shape in which the distance between two opposite sides is equal to or larger than the diameter of the body is fitted in each high-pressure gas container, and the restraint member is coupled to another restraint member or a fixing frame. What has been done ,
Each of the high pressure gas containers has a neck portion having a smaller diameter than the body portion at the end of the tubular body portion,
And, the restraint member is attached to the neck portion of each high-pressure gas container while being attached to the panel, the outer peripheral frame having a short tubular shape having a hexagonal cross section, the panel fixed inside the outer peripheral frame, and the panel. A structure for fixing a high-pressure gas container, which has a bracket . Each of the high-pressure gas containers has a neck portion having a diameter smaller than that of the body portion at the end of the tubular body portion, and the restraint member is fitted to the neck portion. The structure for fixing the high-pressure gas container according to claim 1. 2. A coupling component or a coupling hole that enables coupling with the other constraining member or the fixing frame is provided on each of the six peripheral edges of the constraining member, which is the outer shape of the constraining member. Alternatively, the high pressure gas container fixing structure described in 2. In a state where the restraint member fitted to the high-pressure gas container is overlapped with another restraint member fitted to another high-pressure gas container, any one of the six peripheral edges of the outer shape is overlapped. It is bonded, for one or more fixing frame, according to claim 1, characterized in that the other restraining member is coupled with a laminated state any side that is not bound The high-pressure gas container fixing structure according to any one of the above. A fixing structure of a high-pressure gas container for fixing a plurality of high-pressure gas containers having a tubular body,
A restraint member having a regular hexagonal outer shape in which the distance between two opposing sides is equal to or larger than the diameter of the body is fitted in each high-pressure gas container, and the restraint member is coupled to another restraint member or a fixing frame. What has been done ,
In a state where the restraint member fitted to the high-pressure gas container is overlapped with another restraint member fitted to another high-pressure gas container, any one of the six peripheral edges of the outer shape is overlapped. Being connected to one or more fixing frames, being connected with one of the sides that is not connected to the other restraining member being overlapped ,
Also, each of the restraint members fitted in the high-pressure gas container is coupled to another restraint member and a fixing frame with the axis centered horizontally, and is fixed to the upper portion of the uppermost restraint member. Frame also serves as a lifting member
Fixing structure of the high pressure gas container according to claim. Each of the restraint members fitted in the high-pressure gas container is joined to another restraint member and a fixing frame with the axis centered horizontally, and is joined to an upper part of the uppermost restraint member. 5. The fixing structure for a high-pressure gas container according to claim 4 , wherein the fixing member also serves as a lifting member. A hydrogen trailer, wherein a plurality of high-pressure gas containers filled with hydrogen are mounted on a trolley by the fixing structure according to any one of claims 1 to 6.

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