JP4344000B2 - Overflow device for aquarium - Google Patents

Description

  The present invention relates to an overflow device for a water tank that can be mounted on the wall surface of the water tank.

  As a siphon-type overflow device for a water tank, the present applicant has proposed a “siphon-type overflow device” disclosed in Japanese Patent Application Laid-Open No. 2007-236315 (referred to as reference (1)). The present invention is an improvement of an overflow device capable of exchanging water in an aquarium without taking out fish and / or stones, sand, and plants (algae) for breeding (growth). It proposes a structure that can finely adjust the water level inside, the gist of which is a U-shape that can be mounted on a water tank consisting of a first pipe and a second pipe installed in the first pipe. A double pipe (inverted U-type double pipe), a water supply pipe connected to the first pipe, and a drooping pipe connected to the second pipe. A honeycomb is formed at one end of the drooping pipe. The separation passage is formed. Since the present invention has a structure in which the second pipe is provided in the first pipe, there is a problem that the amount of flowing water is small, and it is a large water tank and sometimes requires time for replacement. Of course, this improvement regarding the amount of water has already been resolved through other applications.

  As another document, there is a "fish shell rearing tank" of JP-A-6-70661 (referred to as reference (2)). The present invention intermittently discharges dust such as residual food and feces by siphon drainage, makes it difficult for this dust to accumulate on the bottom, simplifies cleaning of the aquarium and secures a breeding environment, or running The following configuration is adopted in order to reduce the cost. The gist is that an aeration pipe that causes a vertical water flow is arranged at the bottom of the breeding tank, a groove is formed along the aeration pipe, one end of the suction pipe is connected to the groove, and the other end. Connect the end of the siphon breaker to the end of the siphon breaker and the end of the mechanical vacuum tube, and place the other end of the siphon breaker in the breeding aquarium. It is the structure provided in.

JP2007-236315 JP-A-6-70661

  Reference (1) uses the shape of the U-shaped double pipe to enable locking to the wall of the aquarium, and adopts a U-shaped double pipe (double piping system) to reduce the size of the device. Or it has the feature which can secure economical efficiency. However, since the present invention has a double-pipe structure, there is a possibility that the amount of water is insufficient, an improvement regarding replacement, etc. and a problem of clogging in the pipe may occur. As described above, some of the problems caused by the double tube structure have been solved through other applications.

  Reference (2) is a structure in which a siphon breaker, an aeration pipe, a siphon drain pipe, etc. are provided in a water tank, and the problem of the amount of exchanged water and the problem of securing the water quality and / or the amount of air mixed in are discussed. It has been resolved. However, the present invention has a structure in which a siphon breaker, an aeration pipe, and the like are provided, which leads to an increase in the size of the device and / or an increase in running cost, and is a small size and a siphon overflow device for general household use. Is considered unsuitable.

  In view of the above, the present invention eliminates the situation of an insufficient amount of water to be exchanged, and allows for quick exchange of sewage and / or discharge of foreign matters, or simplification of the structure, thereby reducing the size. It is intended to provide a simple siphon-type overflow device that can be used for stores, including general households. In addition, the connection between the main pipe and the first and second suction pipes is separated (separated), and it is intended to ensure a smooth flow of water flowing through the main pipe and an appropriate amount of water attraction. To do. Furthermore, it is intended to provide a siphon-type overflow device that adopts a transparent tube material at a proper position and has a structure in which the flow of water and / or foreign matter in the water can be confirmed, and is easy to maintain. Further, it is intended to provide a siphon-type overflow device that adopts a structure in which the first and second suction pipes are surrounded and locked by a water level adjusting pipe, and can cope with the water level.

  The invention of claim 1 is reduced in size by eliminating the situation of the shortage of exchanged water, and enabling the exchange of sewage and / or the discharge of foreign matters to be performed quickly, or by simplifying the structure. It is intended to provide a simple siphon-type overflow device that can be used not only for general households but also for stores. In addition, claim 1 separates the connection portion of the main pipe and the first and second suction pipes to ensure a smooth flow of water flowing through the main pipe and an appropriate amount of water attraction. Intended. Furthermore, the invention of claim 1 is intended to provide a siphon-type overflow device that adopts a structure in which the first and second suction pipes are surrounded and locked by the water level adjusting pipe, and can cope with the water level.

Claim 1 is an upper opening closed by a first lid, a main pipe attached to a water tank having a lower opening,
A connection part connected to the upper part of the main pipe at one end, and a first suction pipe provided with a first lower opening at the other end,
A connecting portion connected to the lower portion of the main pipe is provided at one end, and a second lower opening is provided at the other end, and the second lower opening and the connecting portion are connected to each other. A second suction pipe with an inverted U-shaped pipe part reaching the height of the connection part;
The first suction pipe and the second suction pipe are inserted and provided with an upper opening at one end, and a chamber for receiving the first and second lower openings of the first suction pipe and the second suction pipe, and a second lid. A water level adjusting pipe provided in the water tank provided with a lower opening to be closed on the other side;
The first and second lower openings of the first suction pipe and the second suction pipe are configured to be located above the inner bottom of the second lid provided in the lower opening of the water level adjustment pipe. It is.

  The invention of claim 2 is intended to achieve the object of claim 1 and to provide the structure of the sealing portion of the second suction pipe that is optimal for achieving this object.

Claim 2 is an overflow device for an aquarium according to claim 1,
An overflow device for an aquarium having a configuration in which a U-shaped tube portion functioning as a sealing portion is provided between an inverted U-shaped tube portion of the second suction tube and a connecting portion connected to a lower portion of the main tube. .

The invention of claim 3 achieves the same object as that of claim 1, and the first and second suction pipes optimal for achieving this object are surrounded by an intermediate holding pipe, and the opening of the intermediate holding pipe is used. Securing smooth water suction from the water tank, avoiding noise generation due to water suction , and first and second suction pipes and intermediate holding pipes that are optimal for achieving this purpose It is intended to secure a suction route consisting of

Claim 3 is an upper opening closed by the first lid, a main pipe attached to a water tank having a lower opening,
A connection part connected to the upper part of the main pipe at one end, and a first suction pipe provided with a first lower opening at the other end,
A connecting portion connected to the lower portion of the main pipe is provided at one end, and a second lower opening is provided at the other end, and the second lower opening and the connecting portion are connected to each other. A second suction pipe with an inverted U-shaped pipe part reaching the height of the connection part;
The first suction pipe, an upper lid into which the second suction pipe is inserted, one or more openings provided in the upper lid, and an intermediate holding pipe having one or more openings provided in the lower part;
A third lid for closing the lower opening of the intermediate holding tube;
A water level adjusting pipe having a throttle portion loosely fitted to the intermediate holding pipe and having an upper opening;
The first and second lower openings of the first suction pipe and the second suction pipe open to the intermediate holding pipe,
In addition, a connecting pipe for maintaining the main pipe and the second suction pipe in a closed state is provided, and a drain opening of the main pipe is opened above the space of the connecting pipe, and the drain opening of the second suction pipe is connected to the connecting pipe. established in a space under the pipe, further, a fourth cover for closing the third lower opening of the lower end of the second suction pipe provided, also, a drain opening of the main pipe, first under the first suction pipe This is an overflow device for a water tank in which the part opening is at the same horizontal level, and the drain opening of the second suction pipe and the second lower opening of the second suction pipe are at the same horizontal level.

The invention of claim 4 is intended to achieve the object of claim 1 and to provide an optimum water level adjusting pipe for achieving this object.

Claim 4 is an overflow device for an aquarium according to claim 1,
An overflow device for a water tank, wherein the water level adjusting pipe is configured to be movable up and down in the vertical direction of the water tank.

The invention of claim 1 includes an upper opening that can be closed, a main pipe having a lower opening,
A connection part connected to the upper part of the main pipe, and a first suction pipe provided with a first lower opening at the other end;
A second connecting portion connected to the lower portion of the main pipe, a second lower opening provided at the other end, and a second U-shaped pipe portion reaching the height of the connecting portion of the first suction pipe. A suction pipe;
A first suction pipe and a second suction pipe are inserted, and an upper opening is provided at one end, and a chamber for receiving the first and second lower openings of the first suction pipe and the second suction pipe is provided , and is closed by a second lid. A water level adjusting pipe provided in a water tank provided with a lower opening on the other side,
The first and second lower openings of the first suction pipe and the second suction pipe are water tank overflow devices configured to be located above the inner bottom of the second lid provided in the lower opening of the water level adjusting pipe.

  Therefore, claim 1 can achieve a reduction in size by eliminating the situation of an insufficient amount of exchanged water, and being able to quickly exchange sewage and / or discharge foreign matter or simplify the structure. A feature is that it is possible to provide a simple siphon-type overflow device that can be used for stores, including ordinary households. In addition, the first aspect of the present invention separates the connection portion between the main pipe and the first and second suction pipes, and can ensure a smooth flow of water flowing through the main pipe and an appropriate amount of water. Has real benefits. Further, according to the first aspect of the present invention, a siphon-type overflow device can be provided which adopts a structure in which the first and second suction pipes are surrounded and locked by the water level adjusting pipe and can cope with the water level.

Invention of Claim 2 is the overflow apparatus for water tanks of Claim 1, Comprising:
It is the overflow apparatus for water tanks which comprised the U-shaped pipe part which functions as a sealing part between the inverted U-shaped pipe part of a 2nd suction pipe, and the connection part connected to the lower part of a main pipe.

Accordingly, the second aspect has the characteristics that the same object as that of the first aspect can be achieved, and the structure of the sealing portion of the second suction pipe that is optimal for achieving the object can be provided.

The invention of claim 3 includes an upper opening closed by the first lid, a main pipe attached to a water tank having a lower opening,
A connection portion connected to the upper part of the main pipe at one end, and a first suction pipe provided with a first lower opening at the other end;
In addition, a connecting portion connected to the lower portion of the main pipe is provided at one end, and a second lower opening is provided at the other end, and the second lower opening and the connecting portion are connected to each other. A second suction pipe with an inverted U-shaped pipe section reaching the height;
An intermediate holding pipe having a first suction pipe, an upper lid into which the second suction pipe is inserted, one or more openings provided in the upper lid, and one or more openings provided in the lower part;
A third lid for closing the lower opening of the intermediate holding tube;
A water level adjusting pipe having a throttle portion loosely fitted to the intermediate holding pipe and having an upper opening;
The first and second lower openings of the first suction pipe and the second suction pipe open to the intermediate holding pipe,
In addition, a connecting pipe for maintaining the main pipe and the second suction pipe in a closed state is provided, and a drain opening of the main pipe is opened above the space of the connecting pipe, and a drain opening of the second suction pipe is formed in the space of the connecting pipe. Opened at the bottom, and further provided with a fourth lid that closes the third lower opening at the lower end of the second suction pipe. Also, the drainage opening of the main pipe and the first lower opening of the first suction pipe are at the same horizontal level. In addition, the water tank overflow device is configured such that the drain opening of the second suction pipe and the second lower opening of the second suction pipe have the same horizontal level.

Therefore, Claim 3 can achieve the same object as that of Claim 1, and the first and second suction pipes optimal for achieving this object are surrounded by an intermediate holding pipe, and the opening of the intermediate holding pipe is The smooth suction of water from the water tank can be secured, the generation of noise due to the suction of water can be avoided, and the suction route consisting of the first and second suction pipes and the intermediate holding pipe that are optimal for achieving this purpose. It has features such as securing .

Invention of Claim 4 is the overflow apparatus for water tanks of Claim 1, Comprising:
The water level adjustment pipe is a overflow device for the water tank where the structure provided to be vertically movable in the vertical direction of the tank.

Therefore, claim 4 has the characteristics that the object of claim 1 can be achieved, and an optimum water level adjusting pipe can be provided to achieve this object.

  An example of the present invention will be described.

  Referring to the drawings, FIG. 1 is a partially cut-away perspective view showing a first embodiment in which first and second suction pipes are provided on a water level adjusting pipe, and FIG. It is the bird's-eye perspective view of the partial defect which showed the 2nd example which arranged the suction pipe. FIG. 3 is an overhead perspective view showing an example of a pump for supplying expiratory water, and FIG. 4 is a diagram showing a third embodiment in which first and second suction pipes are provided in a water level adjusting pipe and an intermediate holding pipe. It is a bird's-eye perspective view of a part defect.

  In the first embodiment, reference numeral 1 denotes a main pipe, and the main pipe 1 has an upper opening 100 and a lower opening 101 which are closed by a first lid 2. The upper and lower portions 1a and 1b of the main pipe 1 are provided with connecting portions 102 and 103. The connecting portions 102 and 103 are connected to the upper portion (one end) of the first suction pipe 3 (first siphon pipe). The connection part 400 (elbow) provided in the upper part (one end) of the part 300 (elbow) and the 2nd suction pipe 4 (2nd siphon pipe) is connected, respectively. The first suction pipe 3 is composed of a drooping pipe 301 suspended from a connecting portion 300 provided at one end of the first suction pipe 3 and a first lower opening 302 at the lower end (the other end) of the drooping pipe 301. In addition, the first lower opening 302 is positioned below the connection portion 300. The second suction pipe 4 includes a U-shaped pipe part 402 that functions as a water-sealing part 401 suspended from a connection part 400 provided at one end of the second suction pipe 4, and a rise that rises from the U-shaped pipe part 402. An inverted U-shaped tube portion 403 constituted by a tube 403a, an elbow 403b, an elbow 403c, and a suspended tube 403d suspended from the elbow 403c, and a lower end (the other end) of the suspended tube 403d are formed by a second lower opening 404. Further, the second lower opening 404 is located lower than the connection part 400. A water level adjusting pipe 6 is engaged with the outer periphery of the drooping pipe 301 of the first suction pipe 3 and the drooping pipe 403d of the second suction pipe 4 at an interval and moves in the vertical direction (X direction). It is provided as possible. Although this locking is not shown, a holding means, a band, a hook or the like is used. The water level adjusting pipe 6 is a cylindrical body having upper and lower openings 600 and 601 in the upper and lower portions, and the upper opening 600 has a hanging pipe 301 of the first suction pipe 3 and a hanging pipe of the second suction pipe 4. A pipe 403 d is inserted, and a lower opening 302 of the first suction pipe 3 and a lower opening 404 of the second suction pipe 4 are opened in the room 602. The lower opening 601 of the water level adjusting pipe 6 is closed with a second lid 603.

  In this first embodiment, the vicinity of the connection portion 300 of the airtight first suction pipe 3 and the elbows 403b and 403c of the second suction pipe 4 are used by being mounted on the wall A1 of the water tank A. The drooping pipe 301 of the first suction pipe 3 and the drooping pipe 403d of the airtight second suction pipe 4 reach the water, and the upper opening 600 of the water level adjustment pipe 6 opens to the water surface. Further, the main pipe 1, the riser pipe 403 a, and the U-shaped pipe portion 402 are outside the water tank A.

  Then, the overflow water in the water level adjusting pipe 6 falls from the upper opening 600 to the bottom of the water level adjusting pipe 6 so that the water level in the water level adjusting pipe 6 rises. Due to the water level drop, the second suction pipe 4 flows from the water tank A to the outside of the tank via the main pipe 1. That is, drainage is started from the lower opening 101 to a preliminary water tank or the like (not shown). At this time, although the water is incompletely dropped by taking in air from the first suction pipe 3, the water level in the water level adjusting pipe 6 immediately reaches the level of the first lower opening 302. Is sealed. Therefore, the water level drop of the second suction pipe 4 reaches the lower opening 101, the amount of water drastically increases, the flow velocity increases, the flow velocity increases, the connection portion 103 generates negative pressure, and the first suction The air in the tube 3 is sucked. When the air from the first suction pipe 3 is released, the siphon is started, and the two siphons (the siphon effect by the first suction pipe 3 and the second suction pipe 4) are smoothly drained, and are adjusted by the valve 9 in advance. In the horizontal level range of the first lower opening 302 and the upper opening 600, the water level in the water level adjusting pipe 6 is settled so that the first lower opening 302 and the second lower opening 404 are in a submerged position. As a result, there is no air inhalation and there is no inhalation sound, resulting in a comfortable overflow siphon.

  Next, the method of exhalation to the 2nd suction pipe 4 is demonstrated. FIG. 3 shows a pump 7 which is generally used when pumping kerosene. When the pump body 700 is gripped, it is discharged from a water supply or exhaust pipe 701 suspended from the pump body 700, and a hose 702 provided on the pipe 701, and when released, it is sucked into the pipe 701. Tip adapters 704 and 705 that can be hermetically inserted into the main tube 1 are attached to the tips of the seven hoses 702 and the tube 701, respectively. Accordingly, there are a method of sucking out air from the second suction pipe 4 using the pump 7 and a method of pouring water, both of which are performed by closing the valve 9 and pouring water into the first lid 2. The tip adapter 704 is inserted into the main pipe 1 through the upper opening 100 in an airtight manner, the tip adapter 705 is submerged in the water tank A, and the operation of the pump 7 allows the air in the second suction pipe 4 to be expelled by water injection. Can be. Further, when the valve 9 cannot be operated or is omitted, a pumping pump (not shown) is driven, the first lid 2 is removed, and the tip adapter 704 is inserted into the main pipe 1 in an airtight manner. When the adapter 705 is submerged in the water tank A and water is poured into the main pipe 1 and the lower opening 101 by operating the pump 7, a negative pressure is generated in the connecting portion 103 and the air in the second suction pipe 4 is sucked and the air in the second suction pipe 4 is sucked. The exhalation is completed.

  In other words, the overflow device B is depressed in the water tank A and water is introduced into the main pipe 1 or the like, or the first lid 2 of the main pipe 1 is removed, and the pump 7 is used to draw the water from the upper opening 100. It is a method to ensure.

  In this example, the connecting portion 102 where the connecting portion 300 of the first suction pipe 3 is provided is the upper portion, and the connecting portion 103 where the connecting portion 400 of the second suction tube 4 is provided is the lower portion, so that the water is smooth. It has a feature that noise generation is reduced by ensuring a smooth flow and attracting an appropriate amount of water. Further, the first lower opening 302 of the first suction pipe 3 and the second lower opening 404 of the second suction pipe 4 are changed in phase in the horizontal direction (Y direction) (the vertical position is set). A time difference is provided to ensure the flow and avoid noise. The second lower opening 404 is positioned downward with respect to the connection portion 400 of the second suction pipe 4, and this vertical relationship is utilized to adjust the amount and speed of water suction from the second lower opening 404. Alternatively, it is useful for adjusting the amount of water sucked from the first lower opening 302 of the first suction pipe 3 and the water amount and / or speed of the main pipe 1 and is effective.

  Further, a second embodiment in which a sewage suction pipe 8 is attached to the water level adjustment pipe 6 will be described with reference to FIG. 2. The sewage suction pipe 8 penetrates the second lid 601 of the water level adjustment pipe 6 and is moved up and down. The upper opening 800 is changeable with respect to the upper opening 600 of the water level adjusting pipe 6. For example, it is intended to make the upper opening 800 flush with the upper opening 600 of the water level adjusting pipe 6 so as to be able to suck in the rising oil and foreign matter, and to establish the adjustment of the water level. Further, the upper opening 800 is positioned below the upper opening 600 to further promote the suction of the foreign matter, or the water level of the water tank A is based on the upper opening 600 of the water level adjusting pipe 6. Further, the sewage suction pipe 8 enables movement in the X direction along the water level adjustment pipe 6. The upper opening 800 of the sewage suction pipe 8 is flush with the upper opening 600 of the water level adjusting pipe 6, or preferably, the upper opening 800 is positioned below the upper opening 600 so that the sewage suction pipe 8 ( A structure that further facilitates the suction of sediment such as feces, sand, and foreign matter that settles to the bottom of the water tank A from the lower pore 801 of the auxiliary pipe 802), which will be described later, and this oil, feces, sand, and foreign matter, The water is discharged out of the water tank A through the second suction pipe 4. Further, the sewage suction pipe 8 can be extended and retracted by using the auxiliary pipe 802 or the like, for example, corresponding to the height of the water tank A, maintaining the correspondence with the water level adjusting pipe 6, It is possible to effectively cope with situations such as feces, sand, and foreign matters, which is beneficial. Further, although not shown, packing, a joint, and the like are employed to fix the position of the sewage suction pipe 8.

  Explaining the third embodiment, this third embodiment is an intermediate holding tube 10 having an upper lid 11 in which a drooping tube 301 of the first suction tube 3 and a drooping tube 403d of the second suction tube 4 are inserted. The upper lid 11 closes the upper opening 1000 of the intermediate holding tube 10, and the drooping tube 301 and the drooping tube 403 d are passed through the opening of the upper lid 11. One or more suction openings 12 are provided slightly above the lower opening 1001. In this structure, water sucked from the suction opening 12 is guided from the first and second lower openings 302 and 404 to the drooping pipes 301 and 403d, respectively. The lower opening 1001 is closed by the third lid 14. In this example, the throttle portion 604 of the water level adjustment pipe 6 (a structure replacing the lower opening 601) is loosely fitted to the intermediate holding pipe 10, and the water level adjustment pipe 6 moves up and down on the intermediate holding pipe 10. Mounted as possible. Note that the opening 12 of the intermediate holding pipe 10 is, as a rule, above the throttle section 602, and the water introduced by overflowing into the water level adjusting pipe 6 is dropped through the opening 12 as described above. , 403d. The first and second lower openings 302 and 404 of the first suction pipe 3 and the second suction pipe 4 are provided in a vertical position above the inner bottom of the third lid 14 of the intermediate holding pipe 10.

In this third embodiment, the main pipe 1 and the rising pipe 403a of the second suction pipe 4 are surrounded by the connecting pipe 20, and the main pipe 1 and the rising pipe 403a of the second suction pipe 4 are surrounded. Connect. A drain opening 104 of the main pipe 1 is provided toward the upper portion of the space 2000 of the connecting pipe 20, and a drain opening 405 of the second suction pipe 4 is provided toward the lower portion of the space 2000 of the connecting pipe 20. Structure. Therefore, the water that has flowed through the riser pipe 403a of the second suction pipe 4 passes through the drain opening 405 of the second suction pipe 4 and the drain opening 104 of the main pipe 1 through the space 2000 of the connecting pipe 20. It reaches the main pipe 1 and then flows from the lower opening 101 of the main pipe 1 to a preliminary water tank, a drain pipe, etc., not shown. Thereafter, the same applies to the first embodiment described above. In the figure, reference numeral 21 denotes a fourth lid 21 that closes the third lower opening 404 a of the second suction pipe 4. In the figure, reference numeral 22 denotes a sewage suction pipe, and this sewage suction pipe 22 is connected to the upper end of the drooping pipe 301 of the first suction pipe 3.
The sewage suction pipe 22 and the sewage suction pipe 8 described above have the same function. For example, the sewage suction pipe 22 matches the water level of the water tank A when the overflow is stopped, but the sewage suction pipe 8 is settled to the horizontal level of the upper opening 800, and the sewage suction pipe 22 is adjusted to adjust the water level. The horizontal level of the upper opening 600 of the pipe 6 is set, and the water level of the water tank A is not changed in principle. Further, the sewage suction pipe 22 is useful because the amount of water suction is larger than the sewage suction pipe 8 described above. In addition, since the sewage suction pipe 22 is not connected to the water level adjustment pipe 6, movement in the X direction is not relevant. Further, there is no relationship with the water level adjusting pipe 6 and there is no height adjustment. In the figure, 23 indicates a strainer.

  In the third embodiment, the vicinity of the connection portion 300 of the first suction pipe 3 and the elbows 403b and 403c of the second suction pipe 4 are used while being mounted on the wall A1 of the water tank A. In this state, The drooping pipe 301 of the suction pipe 3 and the drooping pipe 403d of the second suction pipe 4 reach the water together with the intermediate holding pipe 10, and the upper opening 600 of the water level adjusting pipe 6 opens to the water surface. Further, the main pipe 1, the riser pipe 403a, and the connecting pipe 20 are outside the water tank A. Then, the water overflowing the upper opening 600 (notch 605) of the water level adjusting pipe 6 passes from the suction opening 12 of the intermediate holding pipe 10 through the first lower opening 302 of the first suction pipe 3, and the drooping pipe 301. From the connecting portion 300, the connecting portion 102 enters the main pipe 1, and flows from the lower opening 101 of the main pipe 1 to a preliminary water tank, a drain pipe, and the like (not shown). Further, from the suction opening 12 of the intermediate holding pipe 10 to the drainage opening 405 of the riser pipe 403a via the second lower opening 404 of the second suction pipe 4 and the drooping pipe 403d and the elbows 403c and 403b. From the space 2000 of the connecting pipe 20 to the main pipe 1 via the drain opening 104 of the main pipe 1, and from the lower opening 101 of the main pipe 1 to a not-shown reserve water tank, drain pipe, etc. For example, drainage of overflow-type sewage, circulation of water in the water tank A, and water retention in the water tank A can be achieved. Then, the overflow ends when the water in the water tank A falls below the upper opening 600 of the water level adjusting pipe 6. In this third embodiment, air is introduced from one or a plurality of air holes 1100 of the upper lid 11, and the water guided from the water tank A in the intermediate holding tube 10 passes through the intermediate holding tube 10. In this structure, the first suction pipe 3 leads to the main pipe 1. The third embodiment is characterized in that noise hardly leaks because the first suction pipe 3 that generates noise is in a substantially sealed state and is in the intermediate holding pipe 10. In the first embodiment and the second embodiment, adjustment of the valve 9 is necessary to eliminate noise, but in this third embodiment, there is no adjustment of the valve 9 and it is simple. There is almost no noise and it is beneficial.

  Further, in the third embodiment, in order to guide the water of the second suction pipe 4 (rise pipe 403a) to the drain opening 104 of the main pipe 1, the drain opening 104 of the main pipe 1 and the first suction pipe 3 are used. In order to introduce water into the intermediate holding pipe 10 from the water level adjusting pipe 6 to the position of the first lower opening 302 at the position “A”, the space 2000 of the connecting pipe 20 and the intermediate holding pipe 10 are used. In order to guide the water sucked into the second suction pipe 4 to the riser pipe 403a and the drain opening 405 of the second suction pipe 4 to It is desirable to set the height of the second lower opening 404 of the two suction pipes 4 at the position “C”.

FIG. 1 is a partially cutaway perspective view showing a first embodiment in which first and second suction pipes are provided in a water level adjusting pipe. FIG. 2 is an overhead perspective view of a partially broken portion showing a second embodiment in which a sewage suction pipe is provided in the first embodiment. FIG. 3 is an overhead perspective view showing an example of a pump for supplying exhalation water. FIG. 4 is a perspective view of a partially cutaway view showing a third embodiment in which the water level adjusting pipe and the intermediate holding pipe are provided with the first and second suction pipes.

1 Main
1a upper part
1b Bottom
100 Upper opening
101 Bottom opening
102 connections
103 connection
104 Drainage opening
2 First lid
3 First suction pipe
300 connections
301 Drooping tube
302 First lower opening
4 Second suction pipe
400 connections
401 Sealing part
402 U-tube
403 Inverted U-shaped pipe
403a Rise pipe
403b Elbow
403c Elbow
403d drooping tube
404 Second lower opening
404a Third lower opening
405 Drainage opening
6 Water level adjustment pipe
600 Top opening
601 Lower opening
602 rooms
603 Second lid
604 Aperture section
605 Notch
7 Pump
700 Pump body
701 tube
702 hose
704 Tip adapter
705 Tip adapter
8 Sewage suction pipe
800 Top opening
801 Lower pore
802 Auxiliary pipe
9 Valve
10 Intermediate holding tube
1000 Top opening
1001 Lower opening
11 Upper lid
1100 Air hole
12 Suction opening
14 Third lid
20 Connecting pipe
21 Fourth lid
2000 space
22 Sewage suction pipe
23 Strainer
A tank
A1 wall
B Overflow device

Claims (4)

An upper opening closed with a first lid, a main pipe attached to a water tank with a lower opening,
A connection part connected to the upper part of the main pipe at one end, and a first suction pipe provided with a first lower opening at the other end,
A connecting portion connected to the lower portion of the main pipe is provided at one end, and a second lower opening is provided at the other end, and the second lower opening and the connecting portion are connected to each other. A second suction pipe with an inverted U-shaped pipe part reaching the height of the connection part;
The first suction pipe and the second suction pipe are inserted and provided with an upper opening at one end, and a chamber for receiving the first and second lower openings of the first suction pipe and the second suction pipe, and a second lid. A water level adjusting pipe provided in the water tank provided with a lower opening to be closed on the other side;
The first and second lower openings of the first suction pipe and the second suction pipe are configured to be located above the inner bottom of the second lid provided in the lower opening of the water level adjustment pipe. . An overflow device for an aquarium according to claim 1,
An overflow device for an aquarium having a configuration in which a U-shaped tube portion functioning as a sealing portion is provided between an inverted U-shaped tube portion of the second suction tube and a connecting portion connected to a lower portion of the main tube. An upper opening closed with a first lid, a main pipe attached to a water tank with a lower opening,
A connection part connected to the upper part of the main pipe at one end, and a first suction pipe provided with a first lower opening at the other end,
A connecting portion connected to the lower portion of the main pipe is provided at one end, and a second lower opening is provided at the other end, and the second lower opening and the connecting portion are connected to each other. A second suction pipe with an inverted U-shaped pipe part reaching the height of the connection part;
The first suction pipe, an upper lid into which the second suction pipe is inserted, one or more openings provided in the upper lid, and an intermediate holding pipe having one or more openings provided in the lower part;
A third lid for closing the lower opening of the intermediate holding tube;
A water level adjusting pipe having a throttle portion loosely fitted to the intermediate holding pipe and having an upper opening;
The first and second lower openings of the first suction pipe and the second suction pipe open to the intermediate holding pipe,
In addition, a connecting pipe for maintaining the main pipe and the second suction pipe in a closed state is provided, and a drain opening of the main pipe is opened above the space of the connecting pipe, and the drain opening of the second suction pipe is connected to the connecting pipe. established in a space under the pipe, further, a fourth cover for closing the third lower opening of the lower end of the second suction pipe provided, also, a drain opening of the main pipe, first under the first suction pipe An overflow device for an aquarium having a configuration in which the portion opening is at the same horizontal level, and the drain opening of the second suction pipe and the second lower opening of the second suction pipe are at the same horizontal level. An overflow device for an aquarium according to claim 1 or claim 2 ,
An overflow device for a water tank, wherein the water level adjusting pipe is configured to be movable up and down in the vertical direction of the water tank.

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