JP2007137485A - Cover and cover device for water tank - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the strength and to increase the freedom of designing of a cover for a water tank mounted with a solar-cell module and to facilitate the mounting/dismounting work of the module. <P>SOLUTION: This cover is provided with at least two arch-shaped girder members in parallel and moves reciprocally in a fixed direction covering a water tank by a transport wheel mounted on leg members on both end parts. Many beam-like members are positioned between each of the girder members at predetermined intervals and at right angles to the girder members to be joined with each of the girder members. On the whole or a part of many square window hole-like parts formed by the girdle members and the neighboring beam members, a square solar-cell module is installed in a condition where the window hole-like parts is closed and is held by the corresponding beam member. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a water tank cover to which a solar cell module is attached and a water tank cover device using the water tank cover, and in particular, a movable large water tank in a water purification plant, a sewage treatment plant or other outdoor water treatment plants. The present invention relates to a cover and a movable cover apparatus.

The cover of the large aquarium is movable so that it can run on rails installed along both sides of the water tank, which needs to be opened and closed at any time for inspection, inspection, sediment removal, water treatment equipment maintenance and delivery, etc. However, it is recommended that solar cell modules be installed in the cover of large outdoor aquariums for effective use of equipment.
In the cover for the aquarium equipped with the solar cell module, a wide groove-like recess is formed along the length direction on the upper surface of the movable arch-shaped cover that covers the aquarium, and a large number of solar cell panels are formed in the recess. The structure of the structure fitted side by side is proposed (for example, patent document 1 mentioned later). A portion (main body) of the cover excluding the solar cell panel is integrally formed of, for example, glass fiber reinforced resin (FRP).

The cover can not only make effective use of the upper surface, but the solar cell panel is fitted into a recess in the upper surface of the cover, so there is no risk of being blown away by strong winds and the recess functions as a rib. It is said that the strength of can be increased.
However, the cover lid is specifically formed integrally with FRP or the like, and therefore, there is a problem in strength when it is used for a large water tank having a large span.
Secondly, since the main body of the cover is integrally formed, the degree of freedom in designing the cover is greatly limited, and maintenance is impossible or extremely difficult when the cover main body is partially damaged or malfunctioned. .
Thirdly, since the entire cover including the concave portion has an arch shape, the cover cover is attached with slide covers having ridges on the inner side of the ridges integrally formed on both sides of the concave portion, while both ends of the rectangular holding frame of the solar cell panel are attached. A pair of sliding members or slide rollers are attached to the lower part, and this solar cell panel is configured to be slid in and pushed in from one side of the recess in a state where both end parts are guided inside the bag. When the solar cell panel is replaced or the wiring system is maintained, a large number of solar cell panels have to be pulled out in order, and there is a problem that much work is required for the work.
JP 2002-43609 A

The problem to be solved by the present invention is to improve the strength of the water tank cover, on which the solar cell module is mounted, to increase the degree of freedom in design, and to improve the work of removing and installing the solar cell module. Accordingly, it is an object of the present invention to provide a water tank cover and a water tank cover device mounted with a solar cell module that can secure sufficient strength even when installed in a large water tank having a large span.
Another object of the present invention is to provide a water tank cover and a water tank cover device on which a solar cell module is mounted, in which individual solar cell modules can be easily attached and removed, and partial maintenance work is easy.
Still another object of the present invention is to provide a water tank cover and a water tank cover device mounted with a solar cell module with an increased degree of design freedom.

  In order to solve the above-mentioned problem, the water tank cover according to the present invention includes at least two parallel arch-shaped girders and covers the water tank with traveling wheels attached to the leg members at both ends. A cover that can reciprocate in a certain direction, and a plurality of beam-shaped members arranged at a predetermined interval and perpendicular to the beam-shaped member between the beam-shaped members are connected to the beam-shaped members. A state in which all or a part of a number of rectangular window hole portions formed by the beam members adjacent to each beam member are closed and held in the corresponding beam members The main feature is to install a rectangular solar cell module.

  In order to solve the above-described problems, the aquarium cover apparatus according to the present invention has a pair of rails installed in parallel along both sides of the aquarium, and can travel along the inner rail as viewed from the aquarium side. A plurality of lower cover covers and a plurality of upper cover covers capable of traveling over the lower cover along the outer rail, wherein the lower cover cover and the upper cover cover are the water tank cover according to the invention. This is the main feature.

According to the water tank cover and the water tank cover device using the same according to the present invention, the arch-shaped beam member and the beam member of the cover are not integral but independent members. As a result, sufficient strength is ensured even when installed in an aquarium with a large span.
Since the beam-shaped member not only holds the solar cell module but also serves as a reinforcing member for connecting the beam-shaped members to each other, the strength of the entire cover lid is further improved.
Moreover, since the solar cell module is held by the beam-shaped member (horizontal material) instead of the beam-shaped member, even if the beam-shaped member has an arch shape, it can be easily attached or detached individually. In addition to facilitating partial maintenance work, design flexibility is increased.

Preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a partial plan view showing an embodiment of a water tank cover device including a cover according to the present invention, and FIG. 2 is a partially enlarged cross-sectional view taken along the arrow AA in FIG. 3 is an enlarged front view in which only the water tank side portion of one (left side) traveling portion in the apparatus of FIG. 2 is sectioned, and FIG. 4 is an attachment portion of the cover in the apparatus of FIG. 2 to the beam member of the solar cell module. FIG. 5 is a partial cross-sectional view taken along arrow BB in FIG. 4, and FIGS. 6 and 7 are exploded cross-sectional views for sequentially explaining the attachment procedure of the solar cell module in FIG.

Rails 4, 4 are installed along both sides of the water tank 1, and a number of cover lids 2 are installed on each rail 4 so as to reciprocate in the length direction of the water tank 1 so as to cover the water tank 1.
In this embodiment, in order to facilitate the opening and closing of a desired part of the water tank 1 and to facilitate the running operation of the cover 2, the cover 2 includes a plurality of upper cover 2 a and a plurality of lower cover 2 b. There are two types, and each of the upper and lower cover covers 2a and 2b is in a state of being stationary and covering the entire water tank 1 as shown in FIG. 1, and is positioned alternately and the lower cover cover 2b adjacent to the upper cover cover 2a. And a predetermined amount of overlap along the traveling direction (length direction of the water tank). In this embodiment, the beam member 20 of the upper cover 2a is configured to partially overlap the beam member 20 of the lower cover 2b adjacent thereto.
In this embodiment, the upper and lower cover covers 2a and 2b are alternately arranged one by one. However, several upper cover covers 2a or lower cover covers 2b are arranged in succession, and the continuous end portions thereof. The upper and lower cover lids 2a and 2b can be operated so as to overlap as described above. How to arrange the upper and lower cover lids 2a and 2b when the water tank 1 is covered in a stationary state is appropriately selected depending on the convenience of operation of the system.

As shown in FIGS. 1 to 5, the cover lids 2 a and 2 b are composed of a pair of parallel beam-shaped members 20 and 20 having a large arcuate arch shape, and a reject member that connects both ends of the beam-shaped members 20. 22 (FIGS. 2 and 3) and the spar members 20 and 20 are arranged at regular intervals along the length direction of the spar member 20 (width direction of the water tank 1) and connected to each spar member 20 And a large number of beam-like members 21.
The beam-shaped member 21 is arranged at right angles to the beam-shaped member 20 as the name suggests, and the beam-shaped members 20, 20 and adjacent beam-shaped members whose both ends are connected to the beam-shaped members 20, 20. The portion surrounded by 21 presents window hole-shaped portions, and the solar cell module 3 is attached to these window hole-shaped portions so as to close the window hole-shaped portions.
Each solar cell module 3 is attached to a beam-like member 21 corresponding to the solar cell module 3 and is embedded so as not to protrude above the beam-like members 20 on both sides of the portion.

As shown in FIGS. 1 to 3, a handle 23 is attached to each cover 2 a, 2 b so as to protrude from both upper surfaces on both ends, and each lower cover 2 b has a sliding door shape on both upper surfaces. An inspection window 24 that can be opened and closed is attached.
Both ends of each lower cover 2b are fastened by fastening bars 25 having both ends connected to the reject members 22 and 22, and turnbuckles 25a are attached to intermediate positions of the fastening bars 25.
Moreover, each cover 2a, 2b connects and reinforces the lower surfaces of the girder members 20, 20 by braces not shown.

With reference to FIGS. 4-7, the structure of each cover 2a, 2b is demonstrated in more detail.
Each girder member 20 is an extruded shape of aluminum or an aluminum alloy (hereinafter referred to as “aluminum alloy” or the like) formed into a cross-section of H shape or I shape, and the extruded shape material is bent into an arch shape. It is.
Each beam-like member 21 is an extruded shape such as an aluminum alloy having a substantially U-shaped cross section.
As shown in FIG. 5, an aluminum alloy formed in a T-shape is provided at a position where each beam-like member 21 is connected between the upper and lower flanges 20a, 20b on the opposite surfaces of the beam-like members 20, 20. The head 201 of the connecting plate (plate-shaped joint) 200 is fixed (welded) in a state of being inserted so as to be substantially perpendicular to the flanges 20a, 20b, and corresponds to a T-shaped rejecting portion. The narrow joint portion 202 that protrudes projects from the upper and lower flanges 20a and 20b by a predetermined amount.
The beam-like member 21 is set so that the joint portions 202 of the connecting plates 200 are in contact with and positioned inside both ends of the vertical main portion of each beam-like member 21, and the joint portion 202, the beam-like member 21, The beam-like members 21 are connected to the beam-like members 20 and 20 in the manner of fixing them with the bolts and nuts 203.

On the upper surface of each beam-like member 21 that is a U-shaped cross section, a convex strip portion 21a having a constant width is formed in the central portion along the length direction, so that both sides of the convex strip portion 21a are formed. The support portions 21b and 21b are formed, and a groove-like portion 21c having a narrowed opening is formed along the length direction at the upper portion of the protruding portion 21a.
In the case where the beam-shaped member 21 is a U-shaped cross section, it is preferable that the beam-shaped member 20 is installed in a downwardly inclined portion of the beam-shaped member 20 so that water does not collect inside.

In this embodiment, as shown in FIG. 4, each solar cell module 3 sandwiches a solar cell element 30 a between a front cover 30 b such as white board tempered glass and a back cover 30 c such as PET or other weather-resistant resin sheet. The module main body 30 and a rectangular holding frame 31 having a groove portion 31c for tightly covering the peripheral edge of the module main body 30 via an edge sealant on the inner upper side.
The holding frame 31 has a pair of vertical frames 31a having a length that is longer than the interval between the opposing surfaces of the adjacent beam members 21 and a pair of lengths slightly shorter than the interval between the beam members 20. The horizontal frame 31b is combined in a square shape in plan view. Each of the vertical frames 31a and the horizontal frames 31b is an extruded shape such as an aluminum alloy, and the surface thereof is preferably subjected to a corrosion resistance treatment such as alumite treatment.

As shown in FIG. 5, the vertical frame 31 a includes a square pipe-shaped main portion 31 d having hollows arranged vertically, a groove portion 31 c formed on the upper portion thereof, and a flange (reference number) formed in a direction in which the groove portion 31 c faces the bottom portion. And a screw receiving groove (no symbol) along the length direction at one corner portion of each hollow portion.
As shown in FIG. 4, the horizontal frame 31b includes a main portion 31e having a lower square pipe portion 31i and an outward groove portion (not indicated) integrally formed thereon, and a groove portion 31c formed thereon. And a flange (not indicated) formed in a direction in which the groove portion 31c faces the bottom, and a screw receiving groove 31f having an arc-shaped cross section along the length direction is formed at one corner of the square pipe portion 31i and one portion of the groove portion. Each has.

The solar cell module 3 is assembled, for example, in the manner shown in FIG.
At the end of each vertical frame 31a, only the vertical wall of the part corresponding to the width of the horizontal frame 31b is left, and the other part is cut away to make the vertical wall part a receiving plate 31g.
Inserting the corresponding edge portion of the module main body 30 into the groove portion 31c of each horizontal frame 31b via an edge sealant, and inserting the corresponding edge portion of the module main body 30 into the groove portion 31c of each vertical frame 31a in the same manner. Thus, the end of the horizontal frame 31b is brought into contact with the receiving plate 31g of the vertical frame 31a. In this state, the solar battery module 3 is assembled by screwing the screw nails 31h and 31h from the outside of the receiving plate 31g into the screw receiving grooves 3f and 31f of the horizontal frames 31b.

Hereinafter, the installation procedure of the solar cell module 3 will be described with reference to FIGS. 4, 6 and 7.
As shown in FIG. 5, an inflatable seal material 204 made of, for example, a gasket is disposed on the upper flange 20 a on the opposite side of each girder member 20 so as to cover the opposite tip surface from the edge of the upper surface. To do.
In the groove-like portion 21c of the beam-like member 21, a plurality of bolts 211 (the same number as the number of restriction plates 210 described later) are inverted in advance and their heads are slidably guided.
One solar cell module 3 (on the right side of the drawing) is formed as shown in FIG. 6 into a window hole portion surrounded by each girder member 20 and an adjacent beam-like member 21 to which both ends are connected. The horizontal frame 31b is inserted in the manner of dropping the solar cell module 3 in a posture corresponding to the beam member 21. As a result, the corresponding horizontal frame 31b is placed on the support portion 21b of each beam-like member 21 to support the solar cell module 3, and the tip end surface of the upper flange 20a of the beam-like member 20 as shown in FIG. The sealing material 204 is compressed, and the gap between the front end surface of the flange 20a and the vertical frame 31a of the solar cell module 3 is sealed.

Next, as shown in FIG. 7, the plurality of regulating plates 210 are set at appropriate intervals on the groove-like portion 21 c of the beam-like member 21 in a state where the posture is changed 90 degrees from the proper posture. The restriction plate 210 is formed by cutting an extruded shape formed into a cross-sectional gate shape with an aluminum alloy or the like into a length smaller than the distance between both the solar cell modules (including the holding frame 31) 3 and 3 in FIG. Therefore, two locking pieces 214 are formed on the upper surface in parallel along the length direction. As shown in FIGS. 4 and 7, the restricting plate 210 is formed with insertion holes 21d for allowing the bolts 211 to pass therethrough, so that the position of each bolt 211 is adjusted and the corresponding bolts 211 are passed through the insertion holes 21d. .
After each regulating plate 210 is set as shown in FIG. 7, the left solar cell module 3 is set so that its horizontal frame 31 b is placed on the left support portion 21 b of the beam-like member 21. At this time, the other horizontal frame of the solar cell module 3 on the left side is supported at the same time on the support portion of the beam-like member on the left side (not shown) of the beam-like member 21.
Next, the restriction plate 210 is changed to an appropriate posture as shown in FIG. 4, and the nuts 212 are screwed to the respective bolts 211 to press the restriction plate 210 to the lower limit. The module 3 is brought into contact with or close to the square pipe portion 31i of each horizontal frame 31b so that the edge portions of the respective solar cell modules 3 cannot be detached from the respective support portions 21b by the both end portions of the regulation plate 210. regulate.

Finally, the filling member 213 having the expansion / contraction sealing material 215 such as a gasket is pushed in between the solar cell modules 3 on both sides along the length direction on both sides. The filling member 213 is an extruded shape member such as an aluminum alloy and is formed in a gate shape in cross section, and the locking protrusions 216 corresponding to the locking pieces 214 of the regulating plates 210 are formed on both sides of the lower portion. The locking protrusions 216 of the filling member 213 are locked so as not to be detached from the corresponding locking protrusions 214 of the restriction plate 210 by the pushing. At the same time, the gap between the solar cell modules 3, 3 adjacent on both sides is closed by the filling member 213, and the gap between the filling member 213 and the solar cell modules 3, 3 on both sides is sealed by the sealing material 215.
By the above procedure, all the window hole portions formed by the beam members 20 and the adjacent beam members 21 are closed by the solar cell module 3.

When the individual solar cell module 3 is removed, the reverse procedure is performed.
That is, the filling member 213 located on both sides of the solar cell module 3 to be removed is removed by pulling it up from the installation position using an appropriate hooking tool (not shown), and each nut 212 of the removal portion is loosened by an appropriate amount. In this state, the posture of each regulating plate 210 is changed by 90 degrees (see FIG. 7), and the solar cell module 3 is removed by pulling up the solar cell module 3 using the outward groove of each horizontal frame 31a of the solar cell module 3. .

In this embodiment, as shown in FIG. 5, a water receiving groove 20c is formed along the length direction on the upper surface of each lower flange 20b on the opposite side of each girder member 20.
On the other hand, water blocking plates 217 made of aluminum alloy or the like are screw screws 219 or other screws on the lower surfaces of the adjacent beam-like members 21 so that the bent-down portions 218 on both side edges face the corresponding water receiving grooves 20c. Is detachably attached. A rivet can be used instead of the screw screw 219 or the like.
Solar cell modules are not installed at both end portions of the cover lids 2a and 2b, but a water stop plate similar to the water stop plate 217 is also installed at the lower part of both end portions of the cover covers 2a and 2b.
Accordingly, the bottom surfaces of the cover lids 2a and 2b are completely water-stopped by the water stop plates 217, and the water received by the water stop plates 217 passes through the water receiving grooves 20c of the girder-like members 20 to the road surface around the water tank 1. It flows to the outside of a water stop plate, which will be described later, installed in an upright position, and does not flow into the water tank 1.
In this embodiment, the wiring structure for photovoltaic power generation is omitted because it is not the main component of the invention.

According to the water tank cover of this embodiment, the arch-shaped beam-like member 20 and the beam-like member 21 of the cover 2 are independent members, so that these materials are made of an aluminum alloy or the like as described above. Even when installed in an aquarium with a large span, sufficient strength is ensured and the weight is reduced.
Since the main part of the cover 2 is not integral, the degree of freedom in design increases.
Since the beam-shaped member 21 not only holds the solar cell module 3 but also serves as a reinforcing member for connecting the beam-shaped members 20 to each other, the strength of the entire cover 2 is further improved.
Since the solar cell module 3 is held not by the beam member 20 but by the beam member 21 which is a horizontal material, even if the beam member 20 has an arch shape, it can be easily attached or detached individually. This facilitates partial maintenance work and increases design freedom.
The gaps between the solar cell module 3 and the beam members 20 and the beam members 21 are sealed in a watertight manner as described above, and rainwater or the like hardly enters the water tank 1 side. Further, when rainwater or the like enters the back side of the cover 2 due to damage of the seal portion or the like, or when condensation occurs in the installation space of the solar cell module 3 of the cover 2, the water is stopped by the water stop plate 217. Water is discharged to the outside through the water receiving groove 20c of each girder member 20.

Next, the traveling operation portions of the upper and lower cover lids 2a and 2b in the cover device will be described with reference to FIG.
Each rail 4 installed on both sides of the water tank 1 is composed of an outer rail 4a that travels the upper cover 2a and an inner rail 4b that travels the lower cover 2b. Each of these rails 4a and 4b is an extruded shape member such as an aluminum alloy, and each of the rails 4a and 4b is constituted by a pipe having a cross-sectional outer shape, and a leg 40 having an inverted T-shape along the length direction on the lower surface thereof. Are integrally formed.

  On the road surface on both sides of the aquarium 1, pipe-like struts 42, 42 are arranged at predetermined intervals along the length of the aquarium, and these struts 42, 42 are horizontal base plates welded to the bottom. It is fixed on the road surface via 41. A horizontal receiving plate 43 is welded to the upper end of each column 42, 42, and a lower flange of each leg 40 is overlapped on these receiving plates 43, and both are tightened with a bolt nut 44. Each rail 4a, 4b is installed.

The lower part of each leg member 22, 22 fixed to one end of the upper cover 2a and the lower cover 2b is in rolling contact with the upper surface of the corresponding rail 4a, 4b in a substantially vertical state (rolling contact). A pair of traveling wheels 5 and two pairs of constraining wheels 50 and 50 that roll in contact with both sides of the corresponding rails 4a and 4b in a substantially horizontal state before and after the traveling direction of the traveling wheel 5 are combined into one set. Two sets are provided along the traveling direction.
In this embodiment, a vehicle frame 51 having an inverted U-shaped cross section made of an extruded shape member such as an aluminum alloy having flange portions 52 at both lower portions at two locations along the traveling direction of the lower portions of the leg members 22 and 22 is illustrated. It is attached along the running direction with screws that do not. Each vehicle frame 51 is provided with a cage 5a in which the traveling wheel 50 is rotatably held, and restraining wheels 50, 50 are attached to flange portions 52, 52 at both lower portions of each vehicle frame 51, respectively. Yes. Therefore, two pairs of restraining wheels 50 are installed in a state of being positioned before and after the traveling direction of one traveling wheel 5.
The traveling operation portion at the other end of each of the upper and lower cover lids 2a and 2b (the other side of the water tank 1) has a different configuration in that none of the above-described restraining wheels 50 are installed. The other configurations are the same as those of the traveling operation portion, and therefore illustration and description thereof are omitted.

The water stop structure at the side of the water tank 1 will be described below. The water stop 11 and 12 are fixed so as to stand in parallel with the side of the water tank 1 on the road surface outside the corresponding rails 4a and 4b. The upper ends of the water stop plates 11 and 12 are fixed by the bolt nuts 44 corresponding to the lower flanges of the leg portions 40 and 40 of the corresponding rails 4a and 4b, respectively.
On the other hand, on the outer sides of the upper and lower cover lids 2a and 2b, water stop plates 22a hanging down so as to face the upper outer sides of the standing water stop plates 11 and 12 respectively installed at the lower ends are respectively attached. A flexible skirt 22b such as rubber is attached to the bottom of each water stop plate 22a.
Therefore, in the state where the water tank 1 is entirely covered with the cover lids 2a and 2b, the water flowing down the water receiving groove 20c of the girder member 20 of the cover lids 2a and 2b, other rainwater, etc. The standing upright on the road surface closer to the water tank 1 side than the water blocking plates 22a and 22a through the outer surfaces of the leg members 22 of the cover lids 2a and 2b and the water blocking plates 22a attached to the portions. Since it flows outside the water blocking plates 11 and 12, it does not flow into the water tank 1.

As shown in FIGS. 9 and 5, a groove 20d is formed along the length direction at the center of the upper surface of each girder member 20 of each of the upper and lower cover lids 2a and 2b. In the illustrated embodiment, a groove 20d is also formed on the upper surface of the girder member 20 of each upper cover 2a. However, this is considered so that any girder member 20 can be used regardless of the type of the cover 2a, 2b. Therefore, it is sufficient that the groove 20d is formed in the beam-like member 20 in the lower cover 2b.
That is, as shown in FIG. 9, a water-stop skirt 206 made of a soft sheet of rubber or the like is attached to the girder member 20 of the upper cover 2b in a drooping manner along the length direction, and the entire cover 2a, 2b In the state where the entire surface of the water tank 1 is covered by the water, the water flowing along the surface of the water stop skirt 206 flows along the groove 20d of the girder-shaped member 20 in the adjacent lower cover 2b. It is comprised so that it may flow outside rather than the water stop plates 11 and 12 on a road surface.

Further, in a state where the entire surface of the water tank 1 is covered with the cover lids 2a and 2b, the lower cover lid 2b is arranged at both ends in the length direction of the water tank 1, and the lower cover at the end portion is arranged. A water stop member 207 such as an aluminum alloy is attached to the lower part of the girder member 20 at the end of the cover 2b in a hanging manner. The bottom end of the water stop member 207 is in contact with the road surface outside the water stop plate 13 fixed along the width direction of the water tank 1 so as to stand on the road surface near the end of the water tank 1. Thus, a water stop skirt 208 made of a soft sheet is attached.
Therefore, rainwater or the like flowing on the outer peripheral road surface of the water tank 1 along the water stop member 207 and the water stop skirt 208 does not flow into the water tank 1.
2, 5, and 9, reference numeral 205 denotes a space between the upper and lower flanges 20 a and 20 b on the non-opposing surface side of each girder member 20 at right angles to the flanges 20 a and 20 b at predetermined intervals. It is the reinforcement board inserted and fixed so that it may become.

  According to the cover device for an aquarium of the above embodiment, a wide upper space of the large aquarium 1 can be used efficiently, and rainwater, snowmelt water, dew, etc. are contained in the aquarium 1 by the above-mentioned water stop structures. It is difficult for miscellaneous water to enter the water tank 1.

Other Embodiments As described above, the girder member 20 is preferably H-shaped or I-shaped in cross section. However, the girder member 20 does not interfere with the required strength and does not interfere with the connection of the beam-shaped member 21. Other cross-sectional shapes may be used.
The beam-like member 21 is not U-shaped in cross section, and for example, the beam-like member 21 can be implemented by using a cross section having a H-shape.
The attachment structure of the solar cell module 3 to the beam-like member 21 is not limited to that of the above embodiment, and other attachment structures can be adopted as long as the solar cell modules 3 can be individually attached and detached.
The vertical and horizontal frames 31a and 31b of the solar cell module 3 may have other parts as long as they have a part into which a hand is inserted when the module 3 is taken out from the window hole part formed by the beam members 20 and the beam members 21. A cross-sectional shape can be adopted.

It is a partial top view which shows one Embodiment of the cover apparatus for tanks containing the cover which concerns on this invention. FIG. 2 is a partial enlarged cross-sectional view taken along an arrow AA in FIG. 1 (however, the structure of a traveling portion is omitted). FIG. 3 is an enlarged front view of a cross section of only a water tank side portion of one (left side) traveling portion in the apparatus of FIG. 2. FIG. 3 is an enlarged cross-sectional (cut end face) view of a portion where a solar cell module is attached to a beam member of a cover in the apparatus of FIG. 2. FIG. 5 is a partial cross-sectional (cut end face) view along arrow BB in FIG. 4. FIG. 5 is an exploded cross-sectional view for explaining an initial stage of an attachment procedure for attaching the solar cell module to the beam-like member in the state of FIG. 4. It is an exploded sectional view for explaining the next stage of the attachment procedure of a solar cell module. It is a partial exploded plan view which shows the assembly point of a solar cell module. It is a partial cut end view of the ridge part in the cover apparatus for water tanks of the said embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water tank 2 Cover 2a Upper cover 2b Lower cover 20 Girder member 20a, 20b Flange 20c Water receiving groove 20d Groove 200 Connecting plate 201 Head 202 Joint part 203 Bolt nut 204 Seal material 206 Skirt 207 Water stop member 208 Water stop Skirt 21 Beam-shaped member 21a Protruding portion 21b Bearing portion 21c Groove-shaped portion 210 Restriction plate 211 Bolt 212 Nut 213 Filling member 214 Locking piece 215 Sealing material 216 Locking protrusion 217 Water stop plate 22 Leg member 25 Tightening bar 25a Turnbuckle DESCRIPTION OF SYMBOLS 3 Solar cell module 30 Module main body 30a Solar cell element 30b Front cover 30c Back cover 31 Holding frame 31a Vertical frame 31b Horizontal frame 31c Groove part 4 Rail 4a Outer rail 4b Inner rail 5 Traveling wheel 5a Cage 50 Restraint wheel 1 car frame

Claims (10)

A cover that includes at least two parallel arch-shaped girders and is capable of reciprocating in a certain direction in a state of covering a water tank with running wheels attached to leg members at both ends. A large number of beam members arranged at right angles to the beam member and at a predetermined interval are connected to the beam members to form the beam members adjacent to each other. A rectangular solar cell module is installed in a state in which all or part of a large number of rectangular window hole portions are closed and held by corresponding beam members. Cover lid. The aquarium cover according to claim 1, wherein the girder member and the beam member are extruded shapes made of aluminum or an aluminum alloy. The girder member is formed in a cross section H shape or a cross section I shape, and each girder member and beam member are fixed between upper and lower flanges on opposite sides of each girder member so as to be perpendicular to the flange. The water tank cover according to claim 2, wherein the joint portion is connected via a connecting plate protruding from between the flanges. Each of the beam-like members is formed so that a cross-section thereof is substantially U-shaped, and an opening is arranged in a downwardly inclined portion of the beam-like member in a downward-inclined direction of the beam-like member. 3. The water tank cover according to 3. Each of the solar cell modules has a planar rectangular holding frame provided with a groove portion in the upper portion on the inner side, which covers the four peripheral portions of the module main body including the solar cell element, and the upper surface of each beam-like member has a substantially center A support portion is formed on both sides of the ridge portion by forming a ridge portion having a constant width along the length direction to the portion, and the support frame of the solar cell module is held on the support portion. 4. The water tank cover according to 4. A groove-like part with a narrowed opening is formed along the length direction at the upper part of the protruding part of each beam-like member, and the heads of a plurality of bolts can be prevented from coming off and slid into the groove-like part. A plurality of restricting plates are fixed at predetermined intervals on the groove-like portion by the respective bolts and nuts, and are adjacently supported by the support portions of the beam-like member by both side portions of the restricting plates. The holding frame of the solar cell module is regulated so as not to be detached from the corresponding support part, and has a sealing material along the length direction on both sides between the upper parts of the holding frames adjacent above the regulating plate. The aquarium cover according to claim 5, wherein the filling member is inserted in a pushing shape, and the filling member is locked to the locking piece of the restriction plate. The water tank cover according to claim 5 or 6, wherein a sealing material is interposed between an upper flange of the girder member and an upper portion of the holding frame of the solar cell module facing the upper flange. The lower flange on the opposite side of each girder member has a water receiving groove along the length direction on the upper surface, and the side edge portion faces the upper side of the corresponding water receiving groove below the adjacent beam member. The water tank cover according to any one of claims 3 to 7, wherein a water stop plate is attached to the state. A pair of rails are installed in parallel along both sides of the aquarium, and a plurality of lower lids that can travel along the inner rails as viewed from the aquarium side, and the lower lids along the outer rails. A water tank cover device, comprising: a plurality of upper cover covers that can run above the upper cover, wherein the lower cover cover and the upper cover cover are the water tank cover according to claim 1. The girder member of each lower cover has a groove along the length direction in the substantially central portion of the upper part, and the upper and lower cover covers adjacent to each other with the stationary cover covering the water tank. The girder member overlaps with the corresponding girder member of the lower cover by a predetermined amount along the traveling direction, and the water stop skirt is formed of a soft sheet attached in a hanging manner to the girder member of the upper cover. The water tank cover device according to claim 9, wherein water flowing down along the surface is guided to a groove of a girder member of a lower cover.

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