JP2006333779A - Filtering device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a filtering device keeping the priming water level of a pump even if the pump is stopped by service interruption or the like, and pumping up water in an aquarium and returning the water to the aquarium without requiring the supply of priming water when the operation of the pump is restarted. <P>SOLUTION: The filtering device 10 comprises a water-sucking chamber 1, the pump 4 installed in the water-sucking chamber, a filtering chamber 2 communicating with the water-sucking chamber 1 through an opening part 30, and a pipe 5 for sucking the water, connected to a water-sucking port 42 of the pump. The filtering device 10 can pump up the water W in the aquarium to introduce the water to the interior of the water-sucking chamber 1, to allow the water to flow into the filtering chamber 2, and to return the water to the aquarium 9 from the outlet 24 of the filtered water by driving the pump 4 while soaking the opening at the free end 51 of the pipe in the water W in the aquarium. A dam part 7 having a water path (slit 71) having a small opening cross-section area and formed therein is installed in the communicating opening part 30 between the water-sucking chamber 1 and the filtering chamber 2. The height position of the water-flooding upper edge part 70 of the dam part, and the opening cross section area of the water path are set so that the priming water level can be kept even if the pump is stopped and the water level is lowered. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a filtration device for filtering water in an aquarium that can be used for breeding and appreciating animals such as fish, growing plants, and appreciating plants.

Various types of filtration devices for filtering the water in the aquarium have been proposed, developed, and put to practical use. However, when roughly divided, the main part is installed in water and the main part is a water tank. It is divided roughly into what is installed outside.
Further, various types of filtration devices have been proposed, developed, and put to practical use for each type of filtration device roughly classified as described above.

  For example, as one type of filtration device in which the main part is installed outside the water tank, an opening between the water absorption chamber, a pump for pumping water installed with the discharge port opened in the water absorption chamber, and the water absorption chamber A filtration chamber having a filtrate outlet at a position higher than the pump discharge port and communicating with the water absorption chamber through a section, and a water absorption pipe connected to the pump suction port and extending outside the water absorption chamber, By immersing the free end opening of the pipe in the water in the aquarium and operating the pump, the water in the aquarium is pumped into the water absorption chamber, introduced into the filtration chamber, and the water level in the filtration chamber is raised to increase the water level. A filtration device that can be refluxed from the filtrate water outlet into the water tank can be mentioned.

An example 10 'of this type of filtration device will be described with reference to FIGS.
FIG. 5 is a side view of the filtration device with the filtration device 10 ′ engaged with the upper frame 91 of the water tank 9 and attached to the water tank 9. 6 is a side view of the filtration device 10 ′ removed from the water tank, FIG. 7 is a front view of the filtration device 10 ′ removed from the water tank (viewed from the water tank side), and FIG. 8 is a line X′-X ′ in FIG. FIG.

  The filtration device 10 ′ is used by being engaged with the upper frame 91 of the water tank 9. The water tank 9 in the illustrated example has a transparent plate 93 such as a transparent glass plate provided between an upper frame 91 and a bottom plate 92, and a butted portion of adjacent transparent plates 93 is liquid-tightly closed with a sealing material. The water surface WF of the water W in the aquarium is under atmospheric pressure.

  The filtration device 10 ′ has a water absorption chamber 1 whose upper end is open to the atmosphere or is covered with a lid, and the chamber is placed under atmospheric pressure, and a filtration chamber 2 adjacent to the water absorption chamber. The upper end of the filtration chamber 2 is also open to the atmosphere or covered with a lid, and the chamber is placed under atmospheric pressure. The filtration chamber 2 is formed deeper than the water absorption chamber 1, and a partition wall 3 is provided between the water absorption chamber 1 and the filtration chamber 2.

  The partition wall 3 projects from a portion where the front wall 11 of the water absorption chamber 1 and the front wall 21 of the filtration chamber 2 are integrally continuous to a rear wall 100 which is integrally and continuously formed in both chambers. . However, the wall 100 is not reached, and the opening 30 having a sufficient opening width is left between the wall 100 and the wall 100. The opening 30 extends from the bottom of the water absorption chamber 1 to near the upper ends of both chambers.

  A pump 4 for pumping water is installed on the bottom wall 14 of the water absorption chamber 1. The pump 4 has a discharge port 41 for discharging water, and the discharge port 41 is opened into the water absorption chamber 1. The pump 4 also has a water inlet 42 at the center of the upper surface, and a pipe 5 is connected to the water inlet 42. The pump 4 can be rotationally driven by a motor 43 attached to the outer lower surface of the bottom wall 14 of the water absorption chamber 1.

  The pipe 5 rises from the pump 4, extends forward in the lateral direction, further extends downward, and has an inverted U-shape as a whole. The free end 51 of the portion extending downward of the pipe 5 extends further downward from the bottom of the filtration chamber 2 in the illustrated example. A flow rate adjustment valve 50 is provided in the lateral portion of the pipe 5.

  At the upper end of the front wall 21 of the filtration chamber 2, which is far above the pump 4, a forward portion 22 projecting from the front wall 21 at an angle of 90 ° to the front wall 21 and downward from the projecting portion. A curvedly descending portion 23 is integrally provided continuously, and an upper portion of the protruding portion 22 and the curved descending portion 23 serves as an outlet 24 for filtered water.

  The left and right sides of the filtrate outlet 24 (left and right in FIG. 7) are a front wall that protrudes integrally from the side wall 25 on the opposite side of the water absorption chamber 1 of the filtration chamber 2 and the partition wall 3. It is partitioned off by a projecting wall 31 projecting toward the surface. A portion surrounded by the protruding portion 22 and the curved descending portion 23 integrated with the front wall 21 of the filtration chamber 2 and the protruding walls 26 and 31 is a filtrate outlet 24.

The upper end of the front wall 11 of the water absorption chamber 1 is also at the same height as the upper end of the front wall 21 of the filtration chamber, and the upper end of the front wall 11 has an angle of 90 ° with respect to the front wall 11 forward from there. A projecting portion 12 projecting and a portion 13 curved downward from the projecting portion are integrally provided. Further, a pipe support wall 52 that supports the pipe 5 is erected on the protruding portion 12.
On the opposite side of the water absorption chamber 1 from the partition wall 3, a water absorption chamber side wall 15 continuous from the rear wall 100 is formed.

  Further, the protruding portion 22 and the curved descending portion 23 providing the outlet 24 of the filtration chamber, and the projecting portion 12 and the curved descending portion 13 in the water absorption chamber 1 relate the filtration device 10 ′ to the water tank upper frame 91. It is also used as an engagement site to be combined.

  On the inner surface of the side wall 25 on the opposite side of the water absorption chamber 1 of the filtration chamber 2 and the surface of the partition wall 3 facing the filtration chamber, there are a plurality of vertical bars 61 on which the filter medium 6 is detachably inserted. This is formed, and the filter medium 6 is replaceably attached thereto.

  Although not shown, the water absorption chamber 1 and the filtration chamber 2 can be covered with a lid that straddles both chambers.

As shown in FIG. 5, the filtration device 10 ′ can be installed by being engaged with the water tank upper frame 91, and is installed in such a manner so that the opening of the free end 51 of the pipe 5 can be used as the water W in the water tank. Can be dipped.
In this state, when at least a so-called pump priming water for starting the pump 4 is supplied into the water absorption chamber 1 and the filtration chamber 2 to start the operation of the pump 4, the water W in the water tank is pumped through the pipe 5. The water is pumped up and introduced into the water absorption chamber 1. The water introduced into the water absorption chamber 1 flows into the rear side of the filter medium 6 in the filtration chamber 2 from the communication opening 30 between the two chambers, and is filtered by passing through the filter medium 6. It also flows into the front side.

In this way, when the water level in the water absorption chamber 1 and the filtration chamber 2 rises and the water level L1 in the filtration chamber 2 (see FIG. 8) reaches the filtrate outlet 24, the filtrate flows out from the outlet and enters the water tank 9. To reflux.
In this way, the water W in the water tank is circulated between the filtration device 10 and the water tank 9 while being filtered by the filter medium 6, and the water W in the water tank is filtered.

The filtration device of the type exemplified above is described, for example, on pages 59 and 65 of “Sakana Paradise 2005 Edition” published by Sankei Shimbun Medix Co., Ltd. in April 2005.
Sakana Paradise 2005, pages 59, 65 (published by Sankei Shimbun Medix, Inc. in April 2005)

  However, according to the filtration device 10 ′, when the pump 4 is stopped due to a power failure or the like during the operation of the filtration device 10 ′, the water in the water absorption chamber 1 and the filtration chamber 2 communicated with each other through the opening 30 is pumped. The water level in the water absorption chamber 1 and the filtration chamber 2 is lowered through the pipe 4 and the pipe 5, and finally the water level L 3 ′ (see FIG. 8) is lowered to the discharge port 41 of the pump 4. Then, air enters the pump 4 and the water level stops decreasing, but the water flows out from the pipe 5 and some or all of the water in the pump 4 (depending on the pump structure etc.) flows out. End up. In this state, the priming water level is not maintained with respect to the pump 4, and even if the pump 4 is recovered from a power failure and the pump 4 starts to rotate again, the water W in the aquarium cannot be pumped up and filtered and circulated.

  When the stop of the pump 4 is caused by a cause unintended by the user, for example, due to a power failure or the like, there is a possibility that the pump 4 is idly operated by the recovery from the power failure or the like, and the state where the water in the water tank is not circulated and filtered continues for a long time. For example, when there is a power outage while the user is away and the user has already recovered from the power outage when returning, it is often difficult for the user to notice the pump idle operation.

  If the stop of the pump 4 is intentional by the user due to maintenance, etc., it is only necessary to supply priming water again and restart the operation of the filtration device. There is annoyance that must be supplied.

  Such a problem is not limited to the filtration device 10 ′ specifically shown in FIG. 5 to FIG. 8, but generally, a water absorption chamber, a water pump that is installed in the water absorption chamber with an outlet opening, A filtration chamber having a filtered water outlet at a position higher than the pump discharge port and communicating with the water absorption chamber through an opening between the water absorption chamber, and connected to the water suction port of the pump to extend outside the water absorption chamber. A water-absorbing pipe, and by immersing the free end opening of the pipe in the water in the aquarium and operating the pump, the water in the aquarium is pumped up and introduced into the water-absorbing chamber, and flows into the filtration chamber. This can occur for a filtration device that can raise the indoor water level and recirculate it from the filtered water outlet into the water tank.

  Therefore, the present invention communicates with the water absorption chamber through an opening between the water absorption chamber, a pump for pumping water installed in the water absorption chamber with the discharge port opened, and the water absorption chamber. Including a filtration chamber having a filtrate outlet at a position higher than the pump discharge port, and a water absorption pipe connected to the water suction port of the pump and extending outside the water absorption chamber, soaking the free end opening of the pipe in the water in the aquarium, By operating the pump, the water in the water tank is pumped into the water absorption chamber, introduced into the filtration chamber, the water level in the filtration chamber is raised, and the filtration water can be returned to the water tank from the filtered water outlet. Even if the pump stops due to a power failure or the like, the pump priming water level is maintained, and when the pump operation is resumed, the water in the aquarium can be pumped and returned to the aquarium without requiring priming water supply. Provide filtration equipment It is an object of the present invention.

In order to solve the above problems, the present invention provides:
A water absorption chamber, a pump for pumping water installed in the water absorption chamber with the discharge port opened, and an opening between the water absorption chamber and the water absorption chamber and higher than the pump discharge port A filtration chamber having a filtered water outlet at a position, and a water absorption pipe connected to the water suction port of the pump and extending to the outside of the water absorption chamber. The free end opening of the pipe is immersed in water in the aquarium, and the pump is operated. Thus, the water in the water tank is pumped into the water absorption chamber, introduced into the filtration chamber, the water level in the filtration chamber is raised, and the filtration device can return from the filtered water outlet to the water tank.
Provided in the opening for communication between the water absorption chamber and the filtration chamber is a weir portion having a small passage cross-sectional area for communicating the water absorption chamber and the filtration chamber, and an overflow upper edge of the weir portion When the pump is stopped in a state where the water level in the filtration chamber reaches the filtered water outlet, the height position of the water passage and the size of the opening cross-sectional area of the water passage are reduced. Flows back to the water tank through the pump and the pipe, and when the water level in the filtration chamber and the water absorption chamber decreases and reaches the overflow upper edge of the weir, the water level in the water absorption chamber decreases faster than the water level in the filtration chamber When the water level in the water absorption chamber reaches the pump discharge port and the decrease in the water level in the water absorption chamber stops, the filtration chamber water continues to flow into the water absorption chamber via the water passage of the weir portion. Ensure that the indoor water level is the same and is above the pump priming water level. Providing the set filtering device.

  In the filtration device according to the present invention, when the pump stops in a state where the filtration chamber water level reaches the filtrate outlet, the water in the filtration chamber and the water absorption chamber flows back to the water tank via the pump and the pipe, and the filtration chamber and The water level in the water absorption chamber decreases and reaches the upper edge of the overflow of the weir. Then, since the cross-sectional area of the water passage provided in the weir is small, the amount of water flowing from the filtration chamber to the water absorption chamber through this water passage is the reverse flow rate to the water tank via the water pump and pipe in the water absorption chamber. The water level in the water absorption chamber begins to drop faster than the water level in the filtration chamber. When the water level in the water absorption chamber decreases due to the reverse flow of the water in the water absorption chamber and reaches the pump discharge port, and the air enters the pump discharge port, the water level decrease in the water absorption chamber stops. However, the water in the filtration chamber continues to flow into the water absorption chamber through the water passage provided in the dam portion, so that the water levels in the two chambers are kept the same and above the pump priming water level.

  As described above, according to the filtration device according to the present invention, the weir formed with the small opening cross-sectional area for communicating the water absorption chamber and the filtration chamber at the communication opening between the water absorption chamber and the filtration chamber. Even if the pump stops due to a power failure or the like and the water level in the water absorption chamber and the filtration chamber decreases due to the height of the overflow upper edge of the weir and the size of the opening cross-sectional area of the water passage The water level for the pump is kept above the pump priming water level where pump operation can be resumed to pump water.

  Therefore, even if the pump is stopped due to an unintended cause such as a power failure, when the pump operation is resumed due to recovery from the power failure, the water in the tank is pumped without requiring priming water supply. , Can be refluxed to a water bath. For example, even if there is a power outage while the user is away and the user has already recovered from the power outage, the pump continues to run idly without the user's knowledge, and the water in the tank The state that the state where the filter is not filtered continues for a long time is eliminated.

  In addition, even when the pump stop is intentional by the user due to the maintenance of the water tank, etc., it is freed from the trouble of having to supply pump priming water every time when the operation of the filtration device is resumed. The

  The water passage of the dam portion may be one or two or more water passage holes formed in the dam portion so as to penetrate through the dam portion. A slit extending downward from the portion can be mentioned. A plurality of slits may be provided. The opening cross-sectional area of the water passage in the case where there are a plurality of water holes or slits is the total of the opening cross-sectional areas.

  As described above, according to the present invention, the water absorption chamber, the pump for pumping water installed with the discharge port opened in the water absorption chamber, and the water absorption chamber are communicated with each other through the opening between the water absorption chamber. And a filtration chamber having a filtrate outlet at a position higher than the pump discharge port, and a water absorption pipe connected to the water suction port of the pump and extending outside the water absorption chamber. By immersing in water and operating the pump, the water in the aquarium is pumped into the water absorption chamber, introduced into the filtration chamber, the water level in the filtration chamber is raised, and returned to the aquarium from the filtered water outlet. Even if the pump is stopped due to a power failure, etc., the pump priming water level is maintained, and when pump operation is resumed, the water in the aquarium is pumped to the aquarium without requiring priming water supply. Can be refluxed It is possible to provide a filtering device.

Embodiments of the present invention will be described below.
1 to 4 show an example 10 of a filtration device according to the present invention. 1 is a side view of the filtration device 10, FIG. 2 is a front view of the filtration device 10 (viewed from the water tank side), FIG. 3 is a cross-sectional view taken along line XX of FIG. It is a figure which shows that a pump priming water level is maintained.

  The filtration device 10 shown in FIGS. 1 to 4 is the same as the conventional filtration device 10 ′ shown in FIGS. 5 to 8 except for the following points. The same parts, parts, etc. as the filtration device 10 'are denoted by the same reference numerals as the filtration device 10'.

  In the filtration device 10 according to the present invention, the weir portion 7 rising from the bottom wall 14 of the water absorption chamber 1 is provided in the opening 30 that allows the water absorption chamber 1 and the filtration chamber 2 to communicate with each other. The overflow upper edge portion 70 of the weir portion 7 is located at a lower position than the filtrate outlet 24, but is located at a position higher than the pump 4 (particularly, its discharge port 41). The dam portion 7 is fluid-tightly connected to the water absorption chamber bottom wall 14, the partition wall 3, and the rear walls 100 of both chambers.

  The weir portion 7 is formed with a slit 71 extending downward from the overflow upper edge portion 70. The opening width of the slit 71 is sufficiently smaller than the opening width of the opening 30. The lower end 710 of the slit 71 is located higher than the pump 4 (particularly, the discharge port 41).

Similarly to the conventional filtration device 10 ′, the filtration device 10 can be attached to the water tank 9 by engaging with the water tank upper frame 91. It installs in that way, and the opening of the free end 51 of the pipe 5 can be immersed in the water W in an aquarium.
In this state, when at least a so-called pump priming water for starting the pump 4 is supplied into the water absorption chamber 1 and the filtration chamber 2 to start the operation of the pump 4, the water W in the water tank is pumped through the pipe 5. The water is pumped up and introduced into the water absorption chamber 1. The water introduced into the water absorption chamber 1 flows into the rear side of the filter medium 6 in the filtration chamber 2 from the communication opening 30 between the two chambers, and is filtered by passing through the filter medium 6. It also flows into the front side.

Thus, when the water level in the water absorption chamber 1 and the filtration chamber 2 rises and the water level L1 in the filtration chamber 2 (see FIG. 4) reaches the filtrate outlet 24, the filtrate flows out from the outlet, and the water tank 9 To reflux.
In this way, the water W in the water tank is circulated between the filtration device 10 and the water tank 9 while being filtered by the filter medium 6, and the water W in the water tank is filtered.

  Also in the filtration device 10, when the pump 4 is stopped due to a power failure or the like during operation, the water in the water absorption chamber 1 and the filtration chamber 2 communicated with each other through the opening 30 is transferred to the water tank 9 through the pump 4 and the pipe 5. The water flows backward and the water levels in the water absorption chamber 1 and the filtration chamber 2 begin to decrease.

  However, when the water level of the filtration chamber 2 and the water absorption chamber 1 decreases and reaches the overflow upper edge 70 of the weir part 7 (see the water level L2 in FIG. 4), the opening cross-sectional area of the slit 71 provided in the weir part is small. Therefore, the amount of water flowing from the filtration chamber 2 to the water absorption chamber 1 by this slit cannot compensate for the reverse flow rate to the water tank 9 through the water pump and pipe in the water absorption chamber 1, and the water level in the water absorption chamber 1. Begins to drop faster than the filtration chamber water level.

  When the water level L3 in the water absorption chamber 1 reaches the discharge port 41 of the pump 4 as shown in FIG. 4 due to the reverse flow of the water in the water absorption chamber 1, air enters the pump 4 and the water level in the water absorption chamber 1 The decline stops there. The water level L3 at this time is lower than the pump priming water level. However, subsequently, the water in the filtration chamber 2 flows into the water absorption chamber 1 from the slit 71, so that the water level in the water absorption chamber 1 rises in a state where no back flow occurs anymore, and the water levels in both the chambers 1 and 2 are the same. And it is kept at the water level L4 above the pump priming water level.

  Therefore, even if the pump 4 is stopped due to a cause unintended by the user, for example, due to a power failure or the like, when the pump operation is resumed due to recovery from the power failure or the like, the water in the tank is not required to supply the priming water It can be pumped and returned to the water tank. For example, even if there is a power outage while the user is away and the user has already recovered from the power outage, the pump continues to run idly without the user's knowledge, and the water in the tank The state that the state where the filter is not filtered continues for a long time is eliminated.

  In addition, when the stop of the pump 4 is intentional to the user due to the maintenance of the water tank or the like, it is troublesome that pump priming water must be supplied each time when the operation of the filtration device 10 is resumed. Is released from.

  INDUSTRIAL APPLICABILITY The present invention can be used for filtering water in an aquarium that can be used for breeding and appreciating animals such as fish and for growing and appreciating plants.

It is a side view of one example of the filtration apparatus concerning the present invention. It is a front view of the filtration apparatus shown in FIG. It is sectional drawing which follows the XX line of FIG. It is a figure which shows that a pump priming water level is maintained at the time of a pump stop. It is a figure which shows the prior art example filtration apparatus attached to the water tank. It is a side view of the filtration apparatus shown in FIG. It is a front view of the filtration apparatus shown in FIG. It is sectional drawing which follows the X'-X 'line | wire of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Example 1 of the filtration apparatus according to the present invention Example 1 of the conventional filtration apparatus 1 Water absorption chamber 11 Water absorption chamber front wall 12 Projection portion 13 Curved descending portion 14 Water absorption chamber bottom wall 15 Water absorption chamber side wall 2 Filtration chamber 21 Front of filtration chamber Wall 22 Protruding portion 23 Curved descending portion 24 Filtration water outlet 25 Filtration chamber side wall 26 Protruding wall 100 Rear wall 3 of chambers 1 and 2 Partition wall 31 Protruding wall 30 Opening portion 4 Pump 41 Discharge port 42 Water intake port 43 Motor 5 Pipe 50 Flow rate Adjusting valve 51 Pipe free end 52 Pipe support wall 6 Filter medium 61 Vertical beam 7 Weir part 70 Overflow upper edge part 71 Slit (an example of water passage)
710 Slit lower end 9 Water tank 91 Upper frame 92 Bottom plate 93 Transparent plate W Water in tank WF Water level in tank

Claims (3)

A water absorption chamber, a pump for pumping water installed in the water absorption chamber with the discharge port opened, and an opening between the water absorption chamber and the water absorption chamber and higher than the pump discharge port A filtration chamber having a filtered water outlet at a position, and a water absorption pipe connected to the water suction port of the pump and extending to the outside of the water absorption chamber. The free end opening of the pipe is immersed in water in the aquarium, and the pump is operated. Thus, the water in the water tank is pumped into the water absorption chamber, introduced into the filtration chamber, the water level in the filtration chamber is raised, and the filtration device can return from the filtered water outlet to the water tank.
Provided in the opening for communication between the water absorption chamber and the filtration chamber is a weir portion having a small passage cross-sectional area for communicating the water absorption chamber and the filtration chamber, and an overflow upper edge of the weir portion When the pump is stopped in a state where the water level in the filtration chamber reaches the filtered water outlet, the height position of the water passage and the size of the opening cross-sectional area of the water passage are reduced. Flows back to the water tank through the pump and the pipe, and when the water level in the filtration chamber and the water absorption chamber decreases and reaches the overflow upper edge of the weir, the water level in the water absorption chamber decreases faster than the water level in the filtration chamber When the water level in the water absorption chamber reaches the pump discharge port and the decrease in the water level in the water absorption chamber stops, the filtration chamber water continues to flow into the water absorption chamber via the water passage of the weir portion. Ensure that the indoor water level is the same and is above the pump priming water level. Filtration device, characterized in that the set.   The filtration device according to claim 1, wherein the water passage of the dam portion is a slit extending downward from the upper edge of the overflow of the dam portion.   The filtration device according to claim 2, wherein a lower end of the slit is located higher than the pump discharge port.