JP4069132B2 - Water tank and overflow drain pipe - Google Patents

Description

  The present invention relates to a water tank and an overflow pipe drain pipe used in the water tank. The aquarium is used for various purposes such as ornamental, aquaculture, aquarium and the like.

  Since the water in the aquarium is gradually contaminated by fish and the like being bred, it is generally performed to circulate and filter this water. As this water circulation type water tank, there is known a structure in which an overflow pipe is provided, water discharged from the water pipe is filtered by a filtration device, and returned to the water tank again.

  FIG. 5A is a perspective view showing an example of a conventional water tank 60, and FIG. 5B is a view showing a longitudinal section between AA shown in FIG. FIG. 5B shows the end face. In FIG. 5A, the water level is represented by a virtual line (two-dot chain line).

  In one section of the water tank 60, an overflow pipe 61 is erected through the bottom plate of the water tank, and a surrounding member 62 is provided so as to surround the periphery. A plurality of water passage holes 63 are formed below the enclosing member 62 to allow water to pass inside (drain water area 65) and outside (inhabiting area 64 for fish etc.) of the enclosing member 62. In addition, the side wall and enclosure member 62 of the water tank 60 are comprised with the transparent material.

  The water circulation process will be described. First, water in the habitat 64 outside the enclosure member 62 enters the inside of the enclosure member 62 (discharged water area 65) through the water passage hole 63 (arrow E) and rises in the discharged water area 65. (Arrow F) overflows into the pipe 61 from the upper opening edge 61a of the overflow pipe 61 (arrow G). The water discharged from the overflow pipe 61 (arrow H) is filtered by an external filter (not shown) and supplied again from the water supply pipe 66 to the habitat 64 of the water tank 60 (arrow I). In this way, the water in the water tank 60 is filtered and circulated. The water level in the water tank 60 is determined by the height position of the opening edge 61 a of the overflow pipe 61.

  By the way, the water contaminated by fish droppings tends to accumulate toward the bottom, and therefore, the overflow pipe 61 is surrounded by the enclosing member 62 having the water passage hole 63 in the lower part, and the area around the dirty bottom It gives priority to water discharge.

  By the way, depending on the type of fish, spawning may be induced by the influence of tides, and some bacteria attached to aquatic plants activate their nitrate removal action due to tides. . For this reason, even when aquatic plants and fish are bred in an aquarium, it may be desirable to artificially create tidal conditions by changing the water level.

From such a viewpoint, for example, Patent Document 1 proposes a configuration that can change the water level of the water tank. The water tank is configured such that the overflow pipe can be moved up and down by a pulley and a reel, and the overflow pipe is moved up and down by driving a motor to wind or unwind the reel, thereby changing the water level. It has also been proposed to control the operation of the motor in accordance with natural tides by a control device.
JP-A-5-268855

  However, the structure in which the overflow pipe itself is moved up and down like the water tank described in Patent Document 1 has a complicated and large structure. Therefore, an object of the present invention is to provide a water tank and an overflow pipe drain pipe that can change the water level with a simple configuration.

  The water tank [No. 1] according to the present invention that can achieve the above object is a rectangular water tank in which an overflow drain pipe is disposed in the vicinity of the corner portion, and the overflow drain pipe is formed on both side walls of the corner portion. The main body flat plate is provided with a main body flat plate that is spanned and a sliding door portion that is fed to the left and right along the main body flat plate. The main body flat plate is formed with an oblique opening window, and the opening of the opening window depends on a sliding position of the sliding door portion. The degree is adjusted.

  According to the water tank [No. 1] of the present invention, depending on the sliding position of the sliding door portion, it is opened only above the opening window that is obliquely opened, opened to the middle position, or fully opened downward (or opened only below). be able to. When only the upper part of the opening window is opened, the water level of the water tank is the height above the opening window, and when the opening window is fully opened, it becomes the height of the lower end of the opening window. If the opening degree of the window is set in the middle, the water level becomes a position corresponding to the middle. In this way, the water level can be arbitrarily changed by sliding the sliding door portion, and since this configuration is simple, it is not a large-scale device and can be achieved at a low cost.

  Alternatively, the water tank [part 2] according to the present invention is a water tank in which a cylindrical overflow drain pipe is disposed, and the overflow drain pipe is a double pipe slidable in the circumferential direction. One pipe of the heavy pipes has a first opening window in the vertical direction, and the other pipe has a second opening window in the oblique direction, and the first opening window and the second opening window have An opening is formed at the overlapped portion. An overflow drain pipe according to the present invention having the same characteristics as this is a cylindrical overflow drain pipe disposed in a water tank, and the overflow drain pipe is a double pipe slidable in the circumferential direction. One of the double pipes has a first opening window in the vertical direction, and the other pipe has a second opening window in the oblique direction, and the first opening window and the first opening window An opening is formed at a location where the two opening windows overlap.

  According to this, water is discharged from the place where the first and second opening windows overlap, and the height becomes the water level. Since the overlapping position of the first and second opening windows can be changed by sliding the double pipe, the water level can be changed accordingly.

  In addition, the point which is common to the 1 and 2 of the above-mentioned present invention is based on an oblique opening window as a drain outlet from which water in the water tank is discharged, and is configured so that the opening degree of the oblique opening window can be adjusted. There is.

  Furthermore, in the water tank [No. 2] and the overflow drain pipe of the present invention, it is preferable that a motor for rotating the one pipe or the other pipe in the circumferential direction is connected. If the pipe is rotated by this motor, the water level can be automatically changed. In addition, the water level can be changed at desired time intervals by adjusting the rotational speed of the pipe by the motor.

  According to the water tank and the overflow drain pipe according to the present invention, the water level can be changed with a simple configuration.

<Embodiment 1>
FIG. 1 is a perspective view showing a water tank [part 1] 10 according to Embodiment 1 of the present invention. 2B and 2C are views of the overflow drain pipe of the water tank 10 as viewed from the front, and FIG. 2A is a side view of the main plate 11 and the sliding door portion 14 in the overflow drain pipe.

  The water tank 10 is a rectangular parallelepiped, and a main body plate 11 of an overflow drain pipe is provided across the side walls 16 and 17 forming one corner portion 10a. The main body flat plate 11 is formed with an opening window 15 elongated in an oblique direction from the vicinity of the upper side to the middle height. Rail portions (upper rail portion 18 and lower rail portion 19) are formed on the upper side and the lower side of the main plate 11. The upper and lower rail portions 18 and 19 are U-shaped grooves, and a rectangular sliding door portion 14 is fitted to the upper and lower rail portions 18 and 19 ((a) of FIG. 2). The sliding door portion 14 is slidable left and right with the threshold 19 (arrows C and D). The sliding door portion 14 is attached to the main plate 11 in a liquid-tight state. The upper rail portion 18 is provided with a stopper 29 to restrict the sliding range of the sliding door member 14. A drain port (not shown) is formed in the bottom plate of the water tank 10 on the inner side (corner portion 10a side) (drainage area 31) partitioned by the main body flat plate 11, and water is discharged from the drain port to the outside. It has become like that. An overflow drain pipe is constituted by the main body flat plate 11, the sliding door portion 14, and the drainage area 31 partitioned by these.

  On the center side of the water tank with respect to the overflow drain pipe, a flat plate-like enclosing member 12 is provided to bridge the side walls 16 and 17 of the corner portion 10a so as to surround the overflow drain pipe. A plurality of water passage holes 13 are formed below the enclosing member 12 to allow water to pass inside (exhaust water area 65) and outside (inhabiting area 64 such as fish) of the enclosing member 12. In addition, the side wall and the enclosure member 12 of the water tank 10 are comprised with the transparent material. Moreover, in FIG. 1, the water surface is represented by the virtual line (two-dot chain line).

  Next, the state of drainage in the first embodiment will be described.

First, the water in the habitat 64 enters the drainage water area 65 separated by the enclosure member 12 through the water passage hole 13, then enters the drainage area 31 through the opening window 15, and drains outside through the drainage port of the drainage area 31. Is done. At this time, the position of the lower end of the opening window 15 changes depending on the position of the sliding door portion 14 (S ₁ , S ₂ , S ₃ ). Accordingly, the height of the drainage from the opening window 15 changes, and the tank 10 The water level changes. That is, as shown in FIG. 2C, when the opening window 15 is fully opened by the sliding position of the sliding door portion 14, the water is discharged to the position (S ₁ ) of the window lower end portion 15 b of the opening window 15. That is, the water level of the water tank 10 becomes the position (S ₁ ) of the window lower end portion 15b. Further, when the sliding door portion 14 is slid to the intermediate position as shown in FIG. 1, the water is discharged up to the lower end position (S ₂ ) where the opening window 15 is open. Becomes the opening lower end position (S ₂ ). FIG. 2B shows a state in which the sliding door portion 14 is closed, but since the stopper 29 is provided on the upper rail portion 18, the opening window 15 is not completely closed and the upper portion is open. This is because when the opening window 15 is completely closed, it cannot be discharged and cannot serve as an overflow drain pipe. And the water level of the water tank 10 becomes an opening lower end position (S ₃ ) at this time.

Thus the it is possible to change the water level in the water tank 10 by the sliding position of the sliding door 14, the degree of change in FIG. 2 (b), the height T ₁ through T ₂ shown in (c). Incidentally, that the window lower end 15b of the opening window 15 from being formed in some degree higher position from the water tank bottom, maintaining the water level of the even T ₁ in a case where the lowest water level, dries up water Absent.

  The sliding door portion 14 may be connected to a motor, and the sliding door portion 14 may be slowly slid left and right to automatically change the water level.

  As described above, according to the first embodiment, the water level can be arbitrarily changed by sliding the sliding door portion 14, and this configuration is simple, not a large-scale device, and low cost.

<Embodiment 2>
FIG. 4 is a perspective view showing a water tank [part 2] 20 according to Embodiment 2 of the present invention, and FIG. 3 is a perspective view showing an overflow drain pipe (overflow drain pipe according to the present invention) 25 in the water tank 20. .

  An overflow drain pipe 25 is provided upright in a section of the water tank 20. The upper end 25 a of the overflow drain pipe 25 is slightly lower than the upper end 20 a of the water tank 20 side wall. Further, an enclosing member 62 is provided so as to surround the overflow drain pipe 25, and a plurality of water passage holes 63 are formed below the enclosing member 62 in the same manner as in the prior art. The water area 65) and the outside (the habitat area 64 for fish, etc.) can pass water. In addition, the side wall and enclosure member 62 of the water tank 20 are comprised with the transparent material.

  The overflow drain pipe 25 is a double pipe made up of an inner pipe 23 and an outer pipe 24, and the inner pipe 23 is fixed through the bottom plate of the water tank 20. It is slidable in the circumferential direction in a dense state. A motor (not shown) is connected to the outer pipe 24, and the outer pipe 24 is configured to rotate slowly by switching between right rotation and left rotation (arrow B).

  An opening window (first opening window) 21 in the vertical direction (vertical direction) 21 is formed in the inner pipe 23, and an opening window (second opening window) 22 in an oblique direction is formed in the outer pipe 24. And the opening 26 as the overflow drain pipe 25 will be formed in the location where the opening windows 21 and 22 overlap. Since the outer pipe 24 rotates with respect to the inner pipe 23 as described above, the position of the opening 26 changes vertically. The height range of the opening windows 21 and 22 extends from a position near the upper portion of the overflow drain pipe 25 to a middle height.

  Next, the state of drainage in the second embodiment will be described.

The water in the habitat 64 passes through the water passage hole 63 and enters the inside of the enclosure member 62 (discharge water area 65), and enters the overflow drain pipe 25 (specifically, the inner pipe) from the opening 26 where the opening windows 21 and 22 overlap. 23) and discharged out of the water tank 20. And the water level of the water tank 20 becomes an opening lower end position of the opening 26 (T ₃ ). The height position of the opening 26, because changes up and down by rotation of the outer pipe 24, changes between the height of the T ₁ through T ₂ the water level of the tub 20 is also shown in FIG. 3 accordingly. Note because there does not fall below the height of the T ₁ be the lowest level, is never dry up water in the water tank 20. Even if the opening windows 21 and 22 do not overlap and the opening 26 is not formed, the upper end 25a of the overflow drainage pipe 25 is lower than the upper end 20a of the side wall of the water tank 20 in the second embodiment. Is discharged into the overflow drain pipe 25 (inside the inner pipe 23), and the water does not overflow from the side wall of the water tank 20.

  Also in the second embodiment, the water level can be changed, and the configuration is simple and the cost is low.

  Although the present invention has been specifically described with reference to examples, the present invention is not limited by the above examples as a matter of course, and of course may be implemented with appropriate modifications within a range that can be adapted to the above purpose. All of these are possible within the scope of the present invention.

  For example, in the second embodiment, a configuration in which the outer pipe 24 is formed with the oblique opening window 22 and the inner pipe 23 is formed with the vertical opening window 21 is shown. The opening window 21 and the inner pipe 23 may be provided with an oblique opening window 21.

  In the second embodiment, the outer pipe 24 is rotatable, but the outer pipe may be fixed and the inner pipe may be rotatable, or both the inner pipe and the outer pipe may be rotatable. Also good.

It is a perspective view which shows the water tank which concerns on Embodiment 1 of this invention. (A) is the side view of the main body flat plate and sliding door part in the overflow drain pipe of Embodiment 1, (b), (c) is the figure which looked at the overflow drain pipe of Embodiment 1 from the front. It is a perspective view which shows the overflow drain pipe which concerns on embodiment of this invention. It is a perspective view which shows the water tank which concerns on Embodiment 2 of this invention. (A) is a perspective view showing an example of the conventional water tank, (b) is a figure showing the longitudinal cross section between AA shown to (a).

Explanation of symbols

DESCRIPTION OF SYMBOLS 10,20 Water tank 11 Main body flat plate 12,62 Enclosure member 13,63 Water flow hole 14 Sliding door part 15,21,22 Opening window 16,17 Side wall 23 Inner pipe 24 Outer pipe 25 Overflow drain pipe 26 Opening

Claims (5)

A rectangular water tank in which an overflow drain pipe is arranged in the vicinity of the corner portion,
The overflow drain pipe is provided with a main body flat plate spanned on both side walls of the corner portion, and a sliding door portion sent to the left and right along the main body flat plate,
The main body flat plate is formed with an oblique opening window, and an opening degree of the opening window is adjusted by a sliding position of the sliding door portion. In a water tank with a cylindrical overflow drain pipe,
The overflow drain pipe is a double pipe slidable in the circumferential direction,
One of the double pipes has a first opening window in the vertical direction, and the other pipe has a second opening window in the oblique direction, and the first opening window and the second opening An aquarium characterized in that an opening is formed at a location where windows overlap.   The water tank according to claim 2, wherein a motor that rotates the one pipe or the other pipe in the circumferential direction is connected. A cylindrical overflow drain pipe disposed in the aquarium,
The overflow drain pipe is a double pipe slidable in the circumferential direction,
One of the double pipes has a first opening window in the vertical direction, and the other pipe has a second opening window in the oblique direction, and the first opening window and the second opening An overflow drain pipe characterized in that an opening is formed at a place where windows overlap.   The overflow drain pipe according to claim 4, wherein a motor for rotating the one pipe or the other pipe in the circumferential direction is connected.

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