JPH01283412A - Switching device for water current in tank - Google Patents

Abstract

PURPOSE:To conduct switching of water current at any period by alternatively flow water through a distributing chamber by sliding of the distributing chamber arranged in a body for introducing water in a tank. CONSTITUTION:A circulating pump 22 is operated to suck water in a water tank 20 from a flow-out-pipe 21 to introduce the water in an introducing chamber 3 via from a discharge pipe 23 to an introducing port 6 and the water is let in the distributing chamber 4 from a communicating port 7. Next, a distributing port 8 is alternatively, communicated to the flow-in-ports 10-1, 10-2 of respective let-out chambers 5-1, 5-2 provided at a partition wall 2 and the water is alternatively ejected from the ejecting ports 24-1, 24-2 of the water tank 20 via let-out-ports 9-1, 9-2 and ejecting water pipes 25-1, 25-2 by sliding along the partition wall 2 due to the reciprocation and the rotation of the distributing chamber 4.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a water flow switching device for periodically switching the water flow in an exhibition tank such as an aquarium.

[Conventional technology]

In exhibition aquariums such as aquariums, it is desired that the flow of water in the aquarium be made to more closely resemble the movement of natural water bodies. for example,
When seaweed is swaying in the natural ocean, the movement of water is approximately 5 to 20 seconds in period.

Traditionally, it has been used to change the water flow in an exhibition tank at a cycle close to natural, and by adjusting the cycle, the environment for breeding fish can be changed, and it can also be used for educational activities to observe changes in the ecological status of fish. For this reason, the water flow in the aquarium has been artificially changed periodically.

Such a water flow switching method is as follows: ■ Part of the water in the aquarium is withdrawn and circulated, and the water is spouted alternately from the spout ports on both sides of the tank, and an automatic valve is installed at each spout port, and the water flow is controlled by a timer. Automatic valve system that automatically switches alternately.

■ An air tank method in which an air tank is installed at each water outlet on both sides of the tank, and the water in these air tanks is alternately pushed out into the tank using compressed air to create a water flow.

■ A piston system that creates a water flow by creating a partition in the water tank and moving the piston left and right inside the tank to alternately push out water.

etc.

[Problem to be solved by the invention]

However, each of the conventional water flow switching systems has the following problems.

■ Automatic valve system In a short period of about 5 to 20 seconds, the number of switching times can be several thousand times as long as 7 days, which causes severe wear and tear on the valves, and also shocks the circulation pump etc. when switching, making it difficult to repair or repair them. Replacement work increased and maintenance was extremely poor.

■ Air tank system Not only is the scale of the air tank large, but there is also an increase in compressed air sources and air control equipment, and noise generation due to short-term inflow of compressed air and release to the atmosphere.

There were problems with equipment and the environment.

■ There were problems such as the large size of piston-type equipment and the complexity of its structure, and short-cycle operation was difficult.

The present invention solves the problems of such conventional methods,
An object of the present invention is to provide a water flow switching device in an aquarium that can reduce shock when switching water flows, enable water flow switching at arbitrary intervals, has a simple structure, can be installed in the middle of circulation piping, and makes equipment compact. It is.

[Means to solve the problem]

The present invention partitions and forms a water introduction chamber, a distribution chamber, and a plurality of outlet chambers by a partition wall in a sealable main body, and the distribution chamber is slidably arranged with respect to each of the outlet chambers, The introduction chamber has an inlet connected to the outflow portion of the water in the aquarium, the distribution chamber has a communication port communicating with the introduction chamber, the sliding portion of the distribution chamber has a distribution port, and the distribution chamber has a sliding portion. An inlet is opened in the partition wall of each outlet chamber facing the section, and the distribution outlet and the inlet of the outlet chamber can communicate with each other in a timely manner by sliding of the distribution chamber, and a water tank is provided in each outlet chamber. This switching device for water flow in an aquarium is characterized by having outlet ports connected to respective spout ports opened near both side walls of the aquarium tank.

[For production]

In the aquarium water flow switching device of the present invention configured as described above, the inlet of the inlet chamber in the main body is connected to the outflow portion through which water in the aquarium flows out, and the outlet of each outlet chamber is connected to the aquarium. Connect to the spout openings near both side walls inside. When the water in the aquarium is introduced into the introduction chamber from the inlet, the water enters the distribution chamber from the communication port, and when the distribution chamber is reciprocated or rotated, the distribution port alternately communicates with the inlet of each outlet chamber, and the water is distributed. The water that has entered the room alternately enters each outlet chamber, passes through each outlet, and is alternately jetted out from each spout in the aquarium, thereby causing alternate water flow in the aquarium. The period of water flow switching is adjusted by changing the moving speed of the distribution chamber.

〔Example〕

Embodiments of the present invention will be described with reference to the drawings. In FIG. A derivation chamber 5-1 and a derivation chamber 5-2 are formed.

The introduction chamber 3 is provided with an introduction port 6 connected to an outflow portion of the water in the aquarium, and a distribution chamber 4 is arranged within the introduction chamber 3 so as to slide on the partition wall 2. The sliding movement of the distribution chamber 4 with the partition wall 2 is preferably linear reciprocating sliding or rotational sliding, and the driving is preferably performed by a variable speed drive machine. Further, the distribution chamber 4 is provided with a communication lower for communicating the inside of the distribution chamber 4 and the inside of the introduction chamber 3, and a distribution port 8 is provided in the sliding portion of the distribution chamber 4 with the partition wall 2. ing.

Further, each outlet chamber 5-1, 5-2 has an outlet chamber 5-1 in one of the spout ports 24-1 and 24-2 (see Fig. 4) that open near both side walls in the water tank. The outlet ports 9-1, .
9-2 is provided, and the partition wall 2 of each outlet chamber 5-1.5-2 is provided.
Water inlets 10-1 and 10-2 are provided at these portions.

In addition, the inlet 10-1゜lo of each outlet chamber 5-1.5-2
-2 and the distribution port 8 of the distribution chamber 4, the distribution port 8 is connected to the inlet 10 of each outlet chamber 5-1, 5-2 by sliding of the distribution chamber 4.
-1 and 10-2.

2 and 3 show a specific embodiment of the present invention,
The central part of the partition wall 2 in the main body l is made cylindrical, and this cylindrical part is provided with inflow ports 10-1, 1 to each outlet chamber 5-1, 5-2.
0-2, and a cylindrical distribution chamber 4 is rotatably inserted therein. In this case, the distribution chamber 4 is provided with a communication lower at the top and a distribution port 8 at the side, and further connected to an upper drive shaft 12 driven by a variable speed drive 1). It is penetrated and supported by a shaft sealing part 13 which is rotated and also has the role of water sealing. Further, a lower shaft 14 is connected to the distribution chamber 4 and supported by a lower bearing 15 . Reference numeral 16 is a sliding portion between the distribution chamber 4 and the partition wall 2 and also serves as a water seal.

In addition, in FIGS. 2 and 3, the same reference numerals as in FIG. 1 indicate the same parts.

Therefore, in order to switch the water flow in the aquarium, as shown in FIG.
The discharge pipe 23 of this circulation pump 22 is connected to the inlet port 6 of the inlet chamber 3 of the main body 1, and the outlet port 9-1. 9-2, aquarium 2o
Spout ports 24-1 and 24-2 opened near both side walls of the interior.
are connected via jet water pipes 25-1 and 25-2, respectively.

Now, when the circulation pump 22 is operated and the water in the water 4220 is sucked in from the outflow pipe 21 and introduced into the introduction chamber 3 through the introduction port 6 through the discharge pipe 23, the water enters the distribution chamber 4 from the communication lower. Next, due to sliding movement of the distribution chamber 4 against the partition wall 2 due to reciprocation or rotation, the distribution port 8 is opened to the inflow ports 10-1 and 10-2 of each outlet chamber 5-1 and 5-2 provided in the partition wall 2.
The water in the distribution chamber 4 is alternately communicated with the outlet chamber 5 during each communication.
-1.5-2 alternately flow to outlet ports 9-] and 9, respectively.
-2 and the water tank 20 via the spout water pipes 25-1 and 25-2.
The water is ejected alternately from the ejection ports 24-1 and 24-2.

In this way, the water flow in the water tank 20 is alternately switched, the period of which can be adjusted by the sliding speed of the distribution chamber 4 by the variable speed drive 1). For example, in order to set the water flow switching period to 9 seconds, adjustment is made so that one reciprocation or one rotation of the distribution chamber 4 is 9 seconds.

Incidentally, it is preferable to rotate the distribution chamber 4, since the switching action becomes continuous due to the rotation, and almost no shock occurs at the time of switching. Furthermore, as shown in FIG. 5, by appropriately making the opening width of the distribution port 8 larger than the width of the partition wall 2 between the inflow ports 10-1 and 10-2, the water flow can be switched without interruption. , the shock at the time of switching is further alleviated.

〔Effect of the invention〕

As described above, the switching device of the present invention is configured so that water alternately flows through the distribution chambers by sliding the distribution chambers provided in the main body that introduces water in the tank, and when switching the water flow. It can soften the shock, freely adjust the water flow switching cycle, has a simple structure, and can be sealed, so it can be installed in the middle of the circulation piping, making the equipment more compact and saving space.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the configuration of the present invention, FIG. 2 is a longitudinal sectional view showing an embodiment of the present invention, FIG. 3 is a sectional view taken along the line 1-■ in FIG. 2,
FIG. 4 is an explanatory diagram of the piping in use, and FIG. 5 is a partially enlarged explanatory diagram of FIG. 3. l...Main body, 2...Partition wall, 3...Introduction chamber, 4-river distribution chamber, 5-1.5-2...Outlet chamber, 6...Inlet, 7...Communication Port, 8... Distribution port, 9-1.9-2.
... Outlet, 10-1, 10-2... Inlet, 1)
...Variable speed drive machine, 12...Upper drive shaft, 14...
・Lower shaft, 20... Water tank, 21... Outflow pipe, 22.
...Circulation pump, 23...Discharge pipe, 24-1, 24
-2... spout, 25-1, 25-2... spout water pipe. Patent applicant: Agent of Ebara Infilco Co., Ltd.
Patent Attorney Pharmacist Minoru Agent Patent Attorney
1) Takatsugu Department Agent Patent Attorney Masaru Takagi

Claims (1)

[Claims] (1) A water introduction chamber, a distribution chamber, and a plurality of water outlet chambers are defined by a partition wall in a sealable main body, and the distribution chamber is slidably arranged relative to each of the outlet chambers; An inlet connected to the outflow part of the water in the aquarium in the introduction chamber, a communication port communicating with the introduction chamber in the distribution chamber, a distribution port in the sliding part of the distribution chamber, and a sliding part of the distribution chamber. An inlet is opened in the partition wall of each outlet chamber facing the water tank, and by sliding the distribution chamber, the distribution port and the inlet of the outlet chamber can communicate with each other in a timely manner. 1. A water flow switching device in an aquarium, characterized in that an aquarium water flow switching device is provided with outlet ports connected to respective spout ports opened near both side walls of the tank.