JP2008295422A - Water tank equipped with discharge port with variable height position - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water tank equipped with a discharge port with variable height position, which is capable of readily changing the height position of the discharge port, corresponding to the purpose, or the like, of discharged water. <P>SOLUTION: The water tank includes a water tank body 2 having a bottom wall 31 and a sidewall 32, a discharge hole 3 formed in the sidewall 32, an outward drain pipe 4 extended from the discharge hole 3 of the sidewall to the outside, an opening and closing valve 5 attached to the outward discharge pipe 4 and an inward discharge pipe 6 which extends from the discharge hole 3 of the sidewall to the inside, and the water tank is constituted so that height position of a discharge port 7 of the top of the inward discharge pipe 6 is made variable. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a water tank that can easily change the height position of a drain outlet.

If the aquarium fish tank continues to be used, the quality of the water will deteriorate due to the excrement of the aquarium fish. Therefore, it is necessary to periodically exchange the water in the aquarium. Such a drain outlet for water exchange is generally provided on the side wall or bottom wall of the aquarium fish tank (see Patent Document 1), but gravel directly on the bottom of the aquarium fish tank. For example, a drain outlet is provided on the side wall of the water tank. Thus, in order to discharge the water in the water tank as much as possible, a drain outlet is often provided at a position slightly above the bottom wall surface of the side wall of the water tank.
JP-A-5-146237

  However, if the height of the drain outlet is very close to the bottom wall surface as in the above-mentioned prior art, sediment such as feces can be discharged sufficiently, but at this time fine gravel etc. are discharged together with water. There was a problem of doing.

  By the way, when the water in the aquarium is exchanged, the purpose is to sufficiently clean the aquarium including feces and the like, and for the purpose of replacing, for example, about one third of the water as a daily maintenance. There are cases. In the latter case, it is sufficient to replace only a part of the water, so it is desirable to avoid discharging fine gravel at the same time.

  However, when the drain outlet is provided at a height very close to the bottom wall surface as in the above prior art, fine gravel is discharged at the same time even if the purpose is to simply replace part of the water. It was. Of course, if the height of the drain outlet is increased, such a problem can be solved. However, if the drain outlet is provided at a high position, the purpose is to sufficiently clean the inside of the water tank. This causes problems that the water in the water tank cannot be sufficiently discharged and sediment such as feces cannot be sufficiently discharged.

  The present invention has been made in view of such a technical background, and includes a drainage port with a variable height position that can easily change the height position of the drainage port in accordance with the purpose of drainage. The purpose is to provide an aquarium.

  In order to achieve the above object, the present invention provides the following means.

[1] A water tank body having a bottom wall and side walls;
Drainage holes formed in the side wall;
An outer drainage pipe extending outward from the drainage hole in the side wall;
An on-off valve attached to the outer drain pipe;
An inner drain pipe extending inward from the drain hole of the side wall,
A water tank provided with a drainage port having a variable height position, characterized in that the height position of the drainage port at the tip of the inner drainage pipe is variable.

  [2] The inner drain pipe includes a main drain pipe extending inwardly from the drain hole of the side wall, and a non-straight pipe-shaped subordinate that is rotatably fitted to at least a tip portion of the main drain pipe. A water tank equipped with a drainage outlet having a variable height position according to the preceding item 1 comprising a drainage pipe.

  [3] The inner drain pipe includes a main drain pipe extending inwardly from the drain hole of the side wall, and a non-straight pipe-shaped sub drain that can be detachably attached to at least a tip portion of the main drain pipe. A water tank provided with a drainage outlet having a variable height position according to the preceding item 1 comprising a pipe.

  [4] The inner drain pipe includes a main drain pipe extending inward from the drain hole of the side wall, and a sub drain pipe that can be detachably attached to at least a tip portion of the main drain pipe. The height position of the drain outlet at the tip of the inner drain pipe can be changed by selecting either the state where the sub drain pipe is attached to the main drain pipe or the state where it is not attached. A water tank provided with a drainage outlet having a variable height position according to item 1 above.

  [5] The water tank provided with the drainage port having a variable height position according to any one of the above items 2 to 4, wherein the sub drainage pipe is substantially L-shaped.

  [6] The inner drain pipe includes a main drain pipe extending inward from the drain hole of the side wall, and a branch drain pipe branched from a middle position of the main drain pipe. The height according to the preceding item 1, wherein the height of the drain outlet at the tip of the drain pipe is different from the height position of the drain outlet at the tip of the main drain pipe, and a switching valve is provided at a branch portion of the main drain pipe. A water tank with a variable-position drain.

[7] The water tank body includes a rectangular bottom wall and four side walls erected from each of the four sides of the bottom wall,
The height position variable drainage according to any one of the preceding items 1 to 6, wherein the side wall in which the drainage hole is formed is made of a transparent plate made of acrylic resin, and the remaining three side walls are made of a transparent plate made of glass. An aquarium with a mouth.

  In the invention of [1], since the height of the drain outlet at the tip of the inner drain pipe can be changed, the drain outlet is set to a low position when the inside of the water tank is sufficiently cleaned. If drainage is performed, water in the water tank can be sufficiently discharged, and sediment such as feces can be sufficiently discharged. On the other hand, for example, when the purpose is to simply replace a part of the water in the aquarium, if the drain outlet is set at a high position and drainage is performed, it is sufficiently prevented that fine gravel is discharged at the same time. be able to.

  In the invention of [2], the inner drain pipe has a main drain pipe extending inward from the drain hole on the side wall, and a non-straight pipe shape that is rotatably fitted to at least the tip of the main drain pipe. (E.g., substantially L-shaped, substantially U-shaped, etc.) and a drainage pipe, for example, the height position of the drainage can be changed simply by rotating the secondary drainage pipe. There is an advantage that the operation of changing the height position can be very simple and easy. Furthermore, by adjusting the degree of rotation of the sub-drain pipe, the height position of the drain port can be appropriately set to various heights, and the advantage that the height position of the drain port can be finely adjusted is also possible. Have.

  In the invention of [2], instead of rotating the sub drainage pipe, for example, the non-straight pipe-shaped sub drain pipe is once removed from the main drain pipe to change the height position of the drain outlet (angle) Etc.), the height position of the drain outlet may be changed. Or you may make it change the height position of a drain outlet by selecting the state of either the state which attached the sub drainage pipe to the main drainage pipe, or the state which does not attach.

  In the invention of [3], the inner drain pipe has a main drain pipe extending inward from the drain hole on the side wall, and a non-straight pipe shape that can be detachably attached to at least the tip of the main drain pipe. For example, a non-straight pipe-shaped sub drain pipe is once removed from the main drain pipe and attached in a different mounting state (angle etc.) so that the height position of the drain port changes. Thus, there is an advantage that the operation of changing the height position of the drain outlet can be made very simple and easy. Also, since the sub drainage pipe is non-straight pipe shape, the height position of the drainage can be changed by selecting either the state where the subdrain pipe is attached to the main drain pipe or the state where it is not attached. it can.

  In the invention of [4], the inner drain pipe includes a main drain pipe extending inward from the drain hole on the side wall, and a sub drain pipe that can be detachably attached to at least the tip of the main drain pipe. It is possible to change the height position of the drain outlet at the tip of the inner drain pipe by selecting either the state where the sub drain pipe is attached to the main drain pipe or the state where it is not attached. Therefore, the height position of the drainage port can be changed by appropriately selecting the attachment state and non-attachment state of the sub drainage pipe. In this way, the height position of the drain port can be variably configured with a very simple configuration.

  In the invention of [5], since the sub drainage pipe is substantially L-shaped, there is an advantage that the drainage mechanism can be configured more compactly.

  In the invention of [6], the inner drain pipe includes a main drain pipe extending inward from the drain hole of the side wall, and a branch drain pipe branched from the middle position of the main drain pipe, The height of the drain outlet at the tip of the branch drain pipe is different from the height position of the drain outlet at the tip of the main drain pipe, and the selector valve is provided at the branch part of the main drain pipe. Thus, there is an advantage that the height position of the drain port can be changed, and thus the operation of changing the height position of the drain port becomes very simple and easy.

  In the invention of [7], among the four side walls, the side wall in which the drainage holes are formed is made of a transparent plate made of acrylic resin, so that the drainage holes can be easily formed, and the production is facilitated accordingly. There are advantages.

  FIG. 1 shows an embodiment (first embodiment) of a water tank (1) provided with a drain port having a variable height position according to the present invention. The water tank (1) includes a water tank body (2) and a drainage mechanism (9) attached to the side wall of the water tank body (2).

  As shown in FIG. 1, the water tank body (2) includes a rectangular bottom wall (31) and four side walls (32) erected from each of the four sides of the bottom wall (31). . The drainage mechanism (9) is attached to the lower edge of one side wall (32A). In this embodiment, the side wall to which the drainage mechanism (9) is attached is constituted by an acrylic resin transparent plate (32A), and the remaining three side walls are constituted by a glass transparent plate (32B). ing.

  As shown in FIG. 2, a drainage hole (3) is formed in the lower side edge of the side wall (32A) on the back side, and outward drainage is directed outward from the drainage hole (3) of the side wall (32A). While the pipe (4) is extended, the inner drain pipe (6) is extended inward from the drain hole (3) of the side wall (32A), and opens and closes to the outer drain pipe (4). A valve (5) is attached. Thus, the said drainage mechanism part (9) is provided with the inner side drain pipe (6), the outer side drain pipe (4), and the on-off valve (5).

  The on-off valve (5) is an on-off valve capable of switching between a water flow state and a water stop state in the outer drain pipe (4). In this embodiment, it is comprised so that a water flow state and a water stop state can be switched by rotating and setting the cock (5a) provided above the on-off valve (5) to a predetermined position. Yes.

  The inner drain pipe (6) includes a straight main drain pipe (11) extending inward from the drain hole (3) of the side wall (32A), and a distal end side of the main drain pipe (11). And a sub-drain pipe (12) having a substantially L shape that is rotatably fitted to the main body. That is, one end of the substantially L-shaped sub drainage pipe (12) is rotatably fitted to the distal end side of the main drainage pipe (11).

  Thus, when the water in the water tank (1) according to the above configuration is sufficiently discharged, the sub-drain pipe (12) is connected to the tip of the main drain pipe (11) as shown in FIG. 2 (b). By rotating around the center, the drain outlet (7) at the tip of the substantially L-shaped auxiliary drain pipe (12) is arranged at a lower position (opens downward). If the on-off valve (5) is opened and drainage is performed in such a state, water in the water tank (1) can be sufficiently discharged, and sediments such as feces can be sufficiently discharged.

  On the other hand, when replacing a part of the water in the water tank (1), as shown in FIG. 2 (a), the auxiliary drain pipe (12) is rotated around the tip of the main drain pipe (11). Accordingly, the drain outlet (7) at the tip of the substantially L-shaped auxiliary drain pipe (12) is arranged at an upper position (opens upward). If the on-off valve (5) is opened and drainage is performed in such a state, a part of the water can be replaced, and fine gravel can be prevented from being discharged at this time.

  Thus, since the height position of the drainage port can be changed only by rotating the auxiliary drainage pipe (12), the operation for changing the height position of the drainage port (7) is very simple and easy.

  Next, the principal part of 2nd Embodiment of the water tank (1) provided with the drain outlet of the height position variable which concerns on this invention is shown in FIG. Note that the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  In the second embodiment, the inner drain pipe (6) includes a main drain pipe (21) extending inward from the drain hole (3) of the side wall (32A) and the main drain pipe (11 ) And a branch drain pipe (22) branched from the middle position. The branch drain pipe (22) is formed in a straight tube shape.

  As shown in FIG. 3, the main drain pipe (21) has a base end portion connected to the drain hole (3) and a tip end portion bent downward. That is, the second drain outlet (27B) at the tip of the main drain pipe (21) opens downward. The first drain outlet (27A) at the tip of the branch drain pipe (22) opens upward. Thus, the second drain port (27B) at the tip of the main drain pipe (21) is at a low position, while the first drain port (27A) at the tip of the branch drain pipe (22) is at a high position. It is configured. That is, the height position of the first drain port (27A) at the tip of the branch drain pipe (22) is different from the height position of the second drain port (27B) at the tip of the main drain pipe (21). It is configured.

  Moreover, the switching valve (23) is attached to the branch part (location where the branch drain pipe is branched) of the main drain pipe (21). The switching valve (23) rotates the cock (23a) attached thereto and sets the cock (23a) at a predetermined position, so that the drainage via the first drainage port (27A) and the second drainage port (27B) ) Is configured to be able to switch between drainage and via. That is, the drainage from the first drain outlet (27A) at the tip of the branch drain pipe (22) and the drainage from the second drain outlet (27B) at the tip of the main drain pipe (21) can be switched. It is configured.

  Therefore, when the water in the water tank (1) according to the above configuration is sufficiently discharged, as shown in FIG. 3 (b), the cock (23a) of the switching valve (23) is rotated and the second operation is performed. It switches so that it may become the drainage through a drain outlet (27B). If the on-off valve (5) is opened and drainage is performed in such a state, water in the water tank (1) can be sufficiently discharged, and sediments such as feces can be sufficiently discharged.

  On the other hand, when replacing a part of the water in the aquarium (1), as shown in FIG. 3 (a), the cock (23a) of the switching valve (23) is operated to rotate the branch drain pipe (22). It switches so that it may become the drainage via a 1st drain outlet (27A). If the on-off valve (5) is opened and drainage is performed in such a state, a part of the water can be replaced, and fine gravel can be prevented from being discharged at this time.

  Thus, since the height position of the drainage port can be changed only by operating the switching valve (23), the operation of changing the height position of the drainage port is very simple and easy.

  Next, the principal part of 3rd Embodiment of the water tank (1) provided with the drain outlet of the height position variable which concerns on this invention is shown in FIG. Note that the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  In the third embodiment, the inner drain pipe (6) includes a main drain pipe (41) extending inward from the drain hole (3) of the side wall (32A), and the main drain pipe (41). A sub-drain pipe (42) that can be detachably attached to the distal end side is provided. The main drain pipe (41) is formed in a straight tube shape, and the sub drain pipe (42) is formed in a substantially L shape.

  Therefore, in the case where the water in the water tank (1) according to the third embodiment is sufficiently discharged, as shown in FIG. 4 (b), the auxiliary drain pipe ( 42) are fitted and attached. At this time, it attaches so that the drain outlet (44) of the front-end | tip of a subdrain pipe (42) may open downward. Thereby, the drain outlet (44) of the inner drain pipe (6) is arranged at a low position. If the on-off valve (5) is opened and drainage is performed in such a state, water in the water tank (1) can be sufficiently discharged, and sediments such as feces can be sufficiently discharged.

  On the other hand, when replacing a part of the water in the water tank (1), as shown in FIG. 4 (a), the main drain pipe (41) is set to a state where the sub drain pipe (42) is not attached. . That is, the drain outlet (43) at the tip of the main drain pipe (41) is opened in the horizontal direction (left direction in the drawing). Thereby, the drain outlet (43) of the inner drain pipe (6) is arranged at a high position. If the on-off valve (5) is opened and drainage is performed in such a state, a part of the water can be replaced, and fine gravel can be prevented from being discharged at this time.

  Thus, by selecting either the state where the auxiliary drain pipe (42) is attached to the main drain pipe (41) or the state where it is not attached, the height of the drain outlet at the tip of the inner drain pipe (6) is selected. Since the height position can be changed, the operation of changing the height position of the drain outlet is very simple and easy.

  Next, the principal part of 4th Embodiment of the water tank (1) provided with the drain outlet of the height position variable which concerns on this invention is shown in FIG. Note that the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  In the fourth embodiment, the inner drain pipe (6) includes a main drain pipe (51) extending inward from the drain hole (3) of the side wall (32A), and the main drain pipe (51). A sub-drain pipe (52) that can be detachably attached to the distal end side is provided. The main drain pipe (51) is formed in a substantially L shape, and the sub drain pipe (52) is formed in a straight tube shape.

  Thus, when the water in the water tank (1) according to the fourth embodiment is sufficiently discharged, as shown in FIG. 5 (b), the main drain pipe (51) has a sub drain pipe (52). Set to not installed. That is, it attaches so that the drain outlet (53) of the front-end | tip of a main drain pipe (51) may open upwards. Thereby, the drain outlet (53) of the inner drain pipe (6) is arranged at a low position. If the on-off valve (5) is opened and drainage is performed in such a state, water in the water tank (1) can be sufficiently discharged, and sediments such as feces can be sufficiently discharged.

  On the other hand, when replacing a part of the water in the water tank (1), as shown in FIG. 5 (a), the sub drainage pipe (52) is fitted and attached to the tip side of the main drainage pipe (51). At this time, it attaches so that the drain outlet (54) of the front-end | tip of a subdrain pipe (52) may open upwards. Thereby, the drain outlet (54) of the inner drain pipe (6) is arranged at a high position. If the on-off valve (5) is opened and drainage is performed in such a state, a part of the water can be replaced, and fine gravel can be prevented from being discharged at this time.

  Thus, by selecting either the state where the auxiliary drain pipe (52) is attached to the main drain pipe (51) or the state where it is not attached, the height of the drain outlet at the tip of the inner drain pipe (6) is selected. Since the height position can be changed, the operation of changing the height position of the drain outlet is very simple and easy.

  The water tank (1) provided with the drainage outlet of the height position according to the present invention is not particularly limited to that of the above-described embodiment, and is within the scope of the claims, unless it departs from the spirit thereof. Any design changes are allowed.

It is a perspective view which shows 1st Embodiment of the water tank provided with the drain outlet of the height position variable which concerns on this invention. (A) is a partial side view showing a part of a state in which the drain outlet of the inner drain pipe is positioned above, and (b) is a partial side view showing the drain outlet of the inner drain pipe below. It is a partial side view which shows a part which shows the state arrange | positioned so that it may carry out in a cross section. It is a partial side view which shows a part of 2nd Embodiment of the aquarium provided with the drainage hole of height position change concerning this invention in a section, and (a) is drained from the 1st drainage port of an inner drainage pipe (B) shows the state which switched the switching valve so that it may drain from the 2nd drain outlet of an inner side drain pipe, respectively. It is a partial side view which shows a part of 3rd Embodiment of the aquarium provided with the drain outlet of the height position change concerning this invention in a section, and (a) shows the state where the sub drainage pipe is not attached. b) shows the state where the auxiliary drain pipe is attached. It is a fragmentary side view which shows a part in 4th Embodiment of the water tank provided with the drain outlet of the height position variable which concerns on this invention, Comprising: (a) is the state to which the subdrain pipe was attached, (b) ) Shows the state where the auxiliary drain pipe is not attached.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Water tank 2 ... Water tank body 3 ... Drain hole 4 ... Outer drain pipe 5 ... On-off valve 6 ... Inner drain pipe 7 ... Drain port 9 ... Drain mechanism 11 ... Main drain pipe 12 ... Sub drain pipe 21 ... Main drain Pipe 22 ... Branch drain pipe 23 ... Switching valve 27A ... First drain outlet 27B ... Second drain outlet 31 ... Bottom wall 32 ... Side wall 32A ... Acrylic resin transparent plate 32B ... Glass transparent plate 41 ... Main drain pipe 42 ... Sub drain pipe 43 ... Drain port 44 ... Drain port 51 ... Main drain pipe 52 ... Sub drain pipe 53 ... Drain port 54 ... Drain port

Claims (7)

A water tank body having a bottom wall and a side wall;
Drainage holes formed in the side wall;
An outer drainage pipe extending outward from the drainage hole in the side wall;
An on-off valve attached to the outer drain pipe;
An inner drain pipe extending inward from the drain hole of the side wall,
A water tank provided with a drainage port having a variable height position, characterized in that the height position of the drainage port at the tip of the inner drainage pipe is variable.   The inner drain pipe includes a main drain pipe extending inward from the drain hole of the side wall, and a non-straight pipe-shaped sub drain pipe that is rotatably fitted to at least a tip portion of the main drain pipe. The water tank provided with the drain outlet of the height position variable of Claim 1 provided with.   The inner drain pipe includes a main drain pipe extending inward from the drain hole of the side wall, and a non-straight pipe-shaped sub drain pipe that can be detachably attached to at least a tip portion of the main drain pipe. The water tank provided with the drain outlet of the height position variable of Claim 1 provided.   The inner drain pipe includes a main drain pipe extending inward from the drain hole of the side wall, and a sub drain pipe detachably attachable to at least a tip portion of the main drain pipe, By selecting either the state where the auxiliary drain pipe is attached to the main drain pipe or the state where it is not attached, the height position of the drain outlet at the tip of the inner drain pipe can be changed. The water tank provided with the drain outlet of the height position variable of Claim 1.   The said sub drainage pipe is substantially L-shaped, The water tank provided with the drain outlet of the height position variable of any one of Claims 2-4.   The inner drain pipe includes a main drain pipe extending inward from the drain hole of the side wall, and a branch drain pipe branched from a middle position of the main drain pipe. The height position according to claim 1, wherein the height position of the drain outlet at the tip and the height of the drain outlet at the tip of the main drain pipe are different, and a switching valve is provided at a branch portion of the main drain pipe. A water tank with a variable drain. The water tank body includes a rectangular bottom wall and four side walls erected from each of the four sides of the bottom wall,
The side wall in which the said drain hole was formed consists of a transparent board made from an acrylic resin, and the remaining three side walls consist of a transparent board made from glass, The height position variable of any one of Claims 1-6. A water tank with a drain.

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