JP2010233479A - Cleaning tool in water tank, equipped with flow rate-regulating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cleaning tool in a water tank, utilizing a siphon action, capable of easily performing the regulation of sucking-up the flow rate of water of the water tank. <P>SOLUTION: The cleaning tool is provided by inserting/holding a flow rate-regulating device B into/to a watering pipe 17 connected with a sucking-up pipe P and capable of contracting or expanding its diameter, pushing the watering pipe 17 to a pipe-bending edge 44e installed at the pipe-holding hole 44 of the flow rate-regulating device B and bending it for squeezing its passage area so as to regulate the flow rate of water flowing in a watering pipe 17. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an aquarium cleaning tool provided with a flow rate adjusting tool capable of appropriately sucking and draining dirty aquarium water in an aquarium for breeding aquarium fish outside the aquarium and draining it. .

  Conventionally, aquarium water in aquarium fish breeding tanks such as goldfish, tropical fish, and saltwater fish is siphoned together with sewage such as fish excrement and residual bait and drained outside to clean the aquarium. An aquarium cleaning tool is known (for example, see Patent Document 1 below).

JP 2000-209978 A

  By the way, when aspirating water in the aquarium with such a cleaning tool, if the flow rate of the aspirated water is constant, fine particles such as pebbles and gravel will be aspirated together with the aquarium water, causing clogging of the suction pipe As a result, there is a problem that the intended cleaning work becomes difficult.

  Therefore, it is necessary to adjust the flow rate of the aquarium water sucked up through the suction pipe as necessary, and conventionally, the operator performs the work of sucking up the water while narrowing the middle of the flexible suction pipe with the fingertip. Like to do.

  However, such work is not only troublesome, but also has a problem that it is difficult to adjust the desired flow rate.

  The present invention has been made in view of such a situation, and the suction pipe that sucks up the aquarium water can be freely narrowed and adjusted so that the flow rate of the aquarium water flowing in the cleaning tool can be appropriately adjusted. An object of the present invention is to provide an aquarium cleaning tool equipped with a novel flow rate adjusting tool which can be solved.

In order to achieve the above object, the invention of claim 1 is the water tank cleaning tool according to claim 1, wherein the water in the water tank is sucked up by a siphon action and drained out of the water tank.
A suction pipe, a flexible pipe that is connected to the suction pipe, has a flexibility and elasticity, and can be reduced in diameter and expanded, and provided on the suction pipe, from the suction pipe to the pipe only A one-way valve that allows the flow of water, and a flow rate adjuster that is detachably and slidably inserted and held in the middle of the water guide pipe,
The flow rate adjusting tool has a flow rate adjusting hole having a pipe insertion hole in which an insertion port to the water conduit pipe is opened, a pipe holding hole that leads to the pipe insertion hole, and a pipe narrowing hole that leads to the pipe holding hole. The pipe holding hole is characterized in that a straight pipe bent edge is formed on one side facing the pipe narrowing hole.

  In order to achieve the object, the invention according to claim 2 is the one according to claim 1, wherein the narrowing hole of the pipe has a tapered surface that is gradually narrowed from the opening end on the pipe holding hole side toward the back wall. It is characterized by having a wedge shape.

  According to the invention of each claim, the flow rate adjustment of sucked water can be easily and easily performed by bending the water guide pipe flat along the straight pipe bending edge of the flow rate adjusting tool. In addition, since the flow rate adjusting tool can be easily attached to and detached from the water guide pipe through the pipe insertion hole at any time, the efficiency of cleaning the aquarium water by the aquarium cleaning tool can be greatly improved.

  According to the second aspect of the present invention, the flow rate of the suction water can be adjusted steplessly by the pipe narrowing hole of the flow rate adjusting hole, so that the cleaning operation of the aquarium water can be performed accurately and efficiently.

Vertical side view of the cleaning tool in the aquarium Enlarged cross-sectional view along line 2-2 in FIG. Enlarged cross-sectional view along line 3-3 in FIG. Expanded sectional view along line 4-4 in FIG. 1 enlarged view of FIG. The figure which shows the use condition of the cleaning tool in the aquarium Sectional drawing which shows the effect | action of the cleaning tool in an aquarium The figure which shows the use condition (at the time of water pipe bending) of the cleaning tool in the aquarium FIG. 8 is an enlarged sectional view taken along line 9-9 of FIG. Sectional drawing which follows the 10-10 line of FIG. The figure which shows the squeezed state by the pipe squeezing hole of a water conveyance pipe

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on examples of the present invention shown in the accompanying drawings.

  1-5, the suction pipe P which makes the main part of the cleaning tool in a water tank is comprised with the transparent hard synthetic resin material, and is formed in the length which reaches the bottom of the water tank V from the outside of the water tank V In addition, a straight cylindrical main body portion 1 having an open front end and a gripping portion 2 that is bent and communicated with the base end, that is, the downstream end, are formed in a square shape in a side view. The grip portion 2 is configured by connecting the elbow pipe 2A and the straight pipe 2B in a watertight manner so that they can be freely inserted and removed. The included angle between the main body portion 1 and the grip portion 2 is an obtuse angle, that is, about 105 °, which makes it difficult for the grip portion 2 to hit the edge of the water tank V when using this water tank cleaning tool. The operability is improved.

  Inside the connecting portion between the main body portion 1 and the grip portion 2 of the suction pipe P, a frustoconical strainer S having a large number of slits 3 is provided. Allow free passage of sewage mixed with fine filth such as dead leaves, stones and other coarse filth. An upstream one-way valve Vu is provided at the rear end of the strainer S, that is, at the outlet 4. The upstream one-way valve Vu includes a valve port 5 communicating with the outlet 4 of the strainer S and a valve body 6 hinged to one side of the valve port 5 to open and close the valve port 5. The flow of water that has been sucked up inside the suction pipe P and passed through the strainer S is allowed, but acts to prevent the reverse flow.

  A downstream one-way valve Vd is provided in a downstream portion of the suction pipe P downstream from the upstream one-way valve Vu, that is, in an intermediate portion of the grip portion 2. The downstream one-way valve Vd is fixed in the grip portion 2 and has a valve seat body 9 that opens the valve port 10 and a valve that is hinged to the valve seat body 9 to open and close the valve port 10. It consists of a body 11. The valve port 10 is formed in an elliptical shape by cutting a cylindrical body obliquely, and the valve body 11 that opens and closes to the valve port 10 is also formed in an elliptical shape so that the upper side of the valve seat body 9 (use of a cleaning tool). And the downstream one-way valve Vd is smoothly opened and closed by the water pressure of the water flowing through the suction pipe P.

  A connection pipe 15 is integrally connected to the downstream end of the grip portion 2, and the upstream end of the water guide pipe 17 is connected to the connection pipe 15. The water guide pipe 17 is composed of a transparent pipe made of a vinyl chloride pipe or the like, which has flexibility and elasticity and can be reduced in diameter and expanded.

  And in the middle of this water guide pipe 17, the flow volume adjustment tool B mentioned later is inserted and hold | maintained so that attachment or detachment and a slide are possible.

  As shown in FIGS. 6 and 8, the water guide pipe 17 has a downstream end below the water surface of the water tank V when the tip of the suction pipe P faces the bottom of the water tank V. , That is, a length that can obtain the siphon action of the cleaning tool described later.

  A suction operation tool A is provided on the upper portion of the suction pipe P, that is, on the upper wall of the gripping portion 2 thereof. A cylindrical operation cylinder 20 having an operation chamber 25 formed therein is integrally formed on the upper surface of the grip portion 2. A push button 21 is slidably fitted into the inside of the operation chamber 25 via a seal ring 22 from the opening outer end of the operation cylinder 20. In the operation cylinder 20, a return spring 23 made of a coil spring that biases the press button 21 so as to protrude outward is provided between the inner end of the press button 21 and the base end of the operation cylinder 20. A guide bar 21 a fixed to the inner end of the push button 21 is slidably penetrated through the inner end wall 20 a of the operation cylinder 20. The operation chamber 25 of the operation cylinder 20 communicates with a water passage 24 between the upstream and downstream one-way valves Vu and Vd in the suction pipe P, and a pressing surface 21p is connected to the outer end of the pressing button 21. Is formed. When the pressing button 21 is pressed inward, the pressing button 21 compresses the return spring 23 and moves inward in the operation chamber 25 to pressurize the water passage 24, and closes the upstream one direction Vu. Open the downstream one-way valve Vd. If the pressing force of the pressing button 21 is released, the pressing button 21 is moved outward by the elastic force of the return spring 23 and returned to the original position (the position in FIG. 1), the water passage 24 is depressurized, As a result, the upstream one-way valve Vu is opened and the downstream one-way valve Vd is closed at the same time.

  The operation cylinder 20 extends upward substantially parallel to the main body portion 1, and the operation chamber 25 in the operation cylinder 2 is located at an upper position away from the water passage 24 in the suction pipe P, The water passage 24 communicates with the water passage 24.

  A finger hanging piece 30 is integrally formed across the base of the operation cylinder 20 on the main body portion 1 side and the upper surface of the gripping portion 2, and the operator holds his / her finger on the edge of the finger hanging portion 30. An arcuate finger-hanging recess 31 to be hung is formed. In addition, a hanging hole 32 is opened in the finger hanging piece 30. When the cleaning tool is not used, it can be hung on an appropriate hanger using the hanging hole 32.

As shown in FIGS. 1 and 5, in the middle of the water guide pipe 17, the flow rate adjusting tool B is detachably and slidably inserted and held. The flow rate adjusting tool B is formed in a rectangular plate shape from a hard synthetic resin material, and gripping portions 41 are integrally formed at both ends in the longitudinal direction of the plate-like portion 40. A flow rate adjusting hole 42 is opened at the center of the plate-like portion 40. The flow rate adjusting hole 42 includes a pipe insertion hole 43 having an insertion port 43 a at the side edge of the plate-like portion 40, a triangular pipe holding hole 44 that communicates with the pipe insertion hole 43, and the pipe holding hole 44. A pipe-shaped narrowed hole 44e is formed on one side edge of the pipe holding hole 44 opposite to the pipe narrowed hole 45. On both sides thereof, a tapered surface 45t gradually narrowing from the opening end on the pipe holding hole 44 side toward the back wall is formed in a wedge shape. As will be described later, the flow rate adjusting hole 42 is inserted into and held at an appropriate position of the water guide pipe 17 and is used to squeeze the water guide pipe 17 by bending the water guide pipe 17 or by squeezing it from both sides. Next, the operation of this embodiment will be described with reference to FIGS.

  As shown in FIG. 6, the free end of the water guide pipe 17 is inserted into the collection tank 26 such as a bucket and then the grip part 2 is gripped, and the main body part 1 of the suction pipe P is placed in the water tank water of the water tank V Immerse in the vertical direction. At this time, when the water in the tank V enters the suction pipe P halfway (water surface), the upstream and downstream one-way valves Vu and Vd are both opened, and the suction pipe P is opened. A part of the air in P is discharged to the water guide pipe 17, and the air is released to the outside air.

  Further, the flow rate adjusting tool B is inserted and held at an appropriate position of the water guide pipe 17 through the insertion port 43 a of the pipe insertion hole 43. At this time, the water guide pipe 17 penetrates the pipe holding hole 44 of the flow rate adjusting tool B, the flow rate adjusting tool B is elastically held by the water guide pipe 17, and the water guide pipe 17 is not restricted in a free state (FIG. 5). reference).

  Next, as shown in FIG. 7A, when the gripping portion 2 is held and the pressing surface 21p of the pressing button 21 of the wicking operation tool A is pressed with a fingertip as indicated by an arrow a, the pressing is performed. The button 21 moves inward. As a result, the volume in the operation chamber 25 is reduced, the interior of the water passage 24 is pressurized, the upstream one-way valve Vu is closed, and the downstream one-way valve Vd is opened.

  Next, as shown in FIG. 7B, when the pressing of the pressing button 21 is released, the pressing button 21 is moved outward by the elastic force of the return spring 23 as shown by the arrow b. The volume in the chamber 25 increases, the pressure in the water passage 24 is reduced, and the upstream one-way valve Vu is opened and the downstream one-way valve Vd is closed.

  As shown in FIG. 6C, when the pressing button 21 is pressed again as shown by the arrow a, the inside of the water passage 24 is pressurized again to close the upstream one-way valve Vu and the downstream one-way valve. Open Vd.

  As described above, by repeating the operations (2) to (4) several times, the aquarium water in the aquarium V is forcibly sucked into the suction pipe P by the pump action generated in the operation chamber 25. By the action, the water flowing in the suction pipe P becomes a continuous flow without performing the above operation, and the water in the water tank V is discharged to the outside.

  And after establishment of the water discharge action by the above-mentioned siphon action, as shown in FIG. 6, when the upstream end of the suction pipe P, that is, the open free end, enters the gravel at the bottom of the water tank V, the residual feed Further, sewage containing fine filth such as fish excrement can be sucked and discharged out of the water tank V through the suction pipe P and the water guide pipe 17. At that time, coarse filth such as dead leaves contained in the sewage is separated by the strainer S. The sewage from which coarse filth such as dead leaves has been separated and removed by the strainer S can be smoothly drained and discharged without clogging the upstream and downstream unidirectional directions Vu and Vd with filth.

  By the way, when the suction force generated in the suction pipe P is large during the suction operation of the tank water, fine fine particles such as gravel are sucked into the suction pipe P together with the tank water ( 6), the suction pipe P is clogged, making it difficult to suck up the aquarium water. At this time, as shown in FIGS. 8 to 10, the grip 41 of the flow rate adjuster B is gripped, and the water guide pipe 17 is pressed against the straight pipe bent edge 44 of the pipe holding hole 44, and the arrow c in FIG. As shown in FIG. 4, by bending the water guide pipe 17 along the pipe bent edge 44e, the middle of the water guide pipe 17 can be quickly squeezed flat and the water passage of the water guide pipe 17 is narrowed and sucked up. The flow rate can be adjusted to decrease, and the fine particles sucked into the suction pipe P can be returned to the water tank V. And just by changing the bending angle of the water guide pipe 17, the suction flow rate can be adjusted stepwise.

  Further, if the bending of the water guide pipe 17 is released, the water guide pipe 17 is immediately restored to its original state by its own elastic force, and can be returned to a normal wicking operation (the water guide pipe 17 cannot be squeezed). it can. Accordingly, the drawing operation of the water guide pipe 17 can be easily performed at any time during the water suction operation.

  Further, as shown in FIG. 11 (A) to FIG. 11 (B) and FIG. 11 (C), if the flow rate adjusting device B is moved in the direction of the arrow d, the water guide pipe 17 is narrowed from the pipe holding hole 44. It is moved to the squeezing hole 45, the passage area of the water guide pipe 17 can be squeezed steplessly by the tapered surface 45t of the pipe squeezing hole 45, and the suction flow rate can be adjusted steplessly. Thus, the water suction operation can be continued.

  Further, the flow rate adjusting tool B can be easily inserted and attached to an appropriate position of the water guide pipe 17 through the pipe insertion hole 43, and can be removed therefrom. For example, this operation can be performed even while using a water tank cleaning tool. It can be done easily.

  The suction operation tool A is located above the suction pipe P, and the operation chamber 25 is located away from the water passage 24 of the suction pipe P. Even if it is sucked into the suction pipe P, there is no risk that the fine particles enter the operation chamber 25 and get caught between the seal ring 22 and the operation cylinder 20, and the suction operation tool A is smooth. Accurate operation can be ensured.

  As mentioned above, although the Example of this invention was described, this invention is not limited to the Example, A various Example is possible within the scope of the present invention.

17 ········ Conducting pipe 43 ·········································································· -Pipe holding hole 44e ... Pipe bending edge 45 ... Pipe narrowing hole 45t ... Tapered surface 24 ... ········· Water passage B ········································································・ Water tank Vu, Vd ・ ・ ・ ・ ・ ・ One-way valve

Claims (2)

In the aquarium cleaning tool, the aquarium water in the aquarium (V) is sucked up by the siphon action and drained out of the aquarium (V).
A suction pipe (P), a water guide pipe (17) that has flexibility and elasticity and can be reduced in diameter and expanded and connected to the suction pipe (P), and the suction pipe (P) A one-way valve (Vu, Vd) that is provided and allows water flow only from the suction pipe (P) to the water guide pipe (17), and is detachably and slidably inserted and held in the middle of the water guide pipe (17). A flow rate adjustment tool (B)
The flow rate adjuster (B) includes a pipe insertion hole (43) through which the insertion port (43a) to the water guide pipe (17) is opened, and a pipe holding hole (44) leading to the pipe insertion hole (43). A flow rate adjusting hole (42) having a pipe narrowing hole (45) communicating with the pipe holding hole (44) is provided, and the pipe holding hole (44) is opposed to the pipe narrowing hole (45). A water tank cleaning tool provided with a flow rate adjusting tool, wherein a straight pipe bent edge (44e) is formed on one side   The pipe narrowing hole (45) has a tapered surface (45t) gradually narrowed from the opening end on the pipe holding hole (44) side toward the inner wall, and is formed in a wedge shape. The water tank cleaning tool provided with the flow volume adjustment tool according to claim 1.

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