JP7105975B1 - Water tank cleaning nozzle - Google Patents

Abstract

An object of the present invention is to provide a water tank cleaning nozzle capable of suppressing a decrease in work efficiency due to clogging. A nozzle body (12), which is composed of a tubular member with one end closed and a suction means connectable to the other end, and a slit (12b) formed in a side wall near the one end; It is characterized by having a wiping means 14 that slides to wipe out the slit 12b and an operation means 16 that enables the sliding operation of the wiping means 14 from the other end side of the nozzle body 12 . [Selection drawing] Fig. 1

Description

TECHNICAL FIELD The present invention relates to a cleaning tool for an aquarium, and more particularly to a cleaning nozzle suitable for cleaning the bottom of aquarium fish tanks.

Tanks for aquarium fish are generally equipped with circulatory cleaning equipment such as filters, but garbage such as uneaten food and feces accumulates at the bottom of the tank, so regular cleaning work is required. necessary. Aquariums for ornamental fish often have gravel, sand, or the like on the bottom, and in cleaning work, it is necessary to remove garbage clogged between these gravel or sand, or on the bottom.

Therefore, in many cases, as disclosed in Patent Document 1, a hard cylindrical suction nozzle is attached to the tip of the suction hose, and this suction nozzle is inserted between gravel or sand to suck out the dust inside. That is what is done. However, if the suction nozzle is inserted between gravel and sand, it may suck out not only dust but also gravel and sand. In order to solve these problems, it has been proposed to suppress the suction of gravel and sand by devising the shape of the suction nozzle.

As a specific example, it is known to provide a large-diameter portion at the tip of the suction nozzle and form a slit on the outer periphery of this large-diameter portion. With such a configuration, the speed of water flowing through the large-diameter portion is slower than that of the main body of the suction nozzle. Therefore, it is possible to suck only dust with a low specific gravity and prevent gravel and sand, which have a higher specific gravity than the dust, from being sucked out.

However, such a suction nozzle having a slit-formed tip has a weak suction force and a poor dust suction efficiency. In addition, long-pile moss is easily entangled, and large dust cannot be sucked in, so clogging is likely to occur. When clogging occurs, the efficiency of sucking in dust becomes extremely poor, so it is necessary to take measures to eliminate the clogging by lifting the nozzle above the water and cleaning the nozzle, which significantly reduces the efficiency of the cleaning work. was a factor.

JP 2010-11833 A

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a water tank cleaning nozzle that solves the above-described problems and can suppress a decrease in work efficiency due to clogging.

A water tank cleaning nozzle according to the present invention for achieving the above object comprises a tubular member with one end closed and a suction means connectable to the other end, and a slit formed in the side wall near the one end. a nozzle body, a wiping means that slides along the nozzle body and wipes the slit, and an operation means that enables the sliding operation of the wiping means from the other end side of the nozzle body. characterized by

Further, in the water tank nozzle having the characteristics described above, one end of the nozzle body forms a wedge-shaped body, and the wedge-shaped slanted surface changes the cross-sectional area of the inner space of the cylindrical member. It is preferable that the slit is provided in the side wall not forming the inclined surface with a length corresponding to the length of the inclined surface. With such characteristics, the nozzle body can be easily pushed into bottom sand or gravel laid in the water tank. In addition, it is possible to improve the efficiency of removing garbage such as uneaten food and feces deposited between bottom sand and gravel.

Further, in the water tank nozzle having the characteristics described above, a pair of the slits are provided in the side wall that does not form the inclined surface, and an end slit connecting the pair of slits is provided at the one end. You can let it be. With such a feature, garbage such as leftover food and excrement deposited between the bottom sand and gravel can be sucked from the end slits, and the garbage removal efficiency can be improved. can. Further, when the wiping means is used, it becomes possible to push out dust or the like clogging the slits provided in the side walls from the end slits, so that clogging can be efficiently eliminated.

Further, in the water tank nozzle having the characteristics described above, it is preferable that the wiping means has a shielding member that covers the slit during a sliding operation for wiping the slit. With such a feature, the suction of water from the slit can be temporarily stopped, making it easier to remove dust adhering to the slit.

Further, in the water tank nozzle having the characteristics described above, it is preferable that the operation means is provided with a biasing means for attracting the wiping means to the other end side. With such a feature, the wiping means does not operate unexpectedly and hinder the cleaning work.

Furthermore, in the water tank nozzle having the characteristics described above, the nozzle body can be configured to be divisible. With such characteristics, it is possible to change the length of the nozzle body by changing the length of the tubular member to be assembled.

According to the water tank cleaning nozzle having the characteristics described above, it is possible to suppress a decrease in work efficiency due to clogging.

It is a cross-sectional view showing a side structure of the water tank cleaning nozzle according to the embodiment. It is a figure which shows the cross-sectional structure at the time of planarly viewing the cleaning nozzle for water tanks which concerns on embodiment. FIG. 11 is a side view showing a state in which the wiping means has performed wiping of the slit; It is a figure for demonstrating the usage condition of the cleaning nozzle for water tanks which concerns on embodiment. FIG. 11 is a perspective view showing a part of a modification regarding the tip shape of the water tank cleaning nozzle according to the embodiment; It is a figure which shows the cross-sectional structure at the time of planarly viewing the front-end|tip part of the cleaning nozzle for water tanks which concerns on a modification, (A) shows the state at the time of suction, (B) shows the state at the time of wiping. It is a figure for demonstrating a part of modification of the operation means which comprises the cleaning nozzle for water tanks. FIG. 5 is a diagram for explaining a configuration example in which a nozzle body constituting the water tank cleaning nozzle has a split structure;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of a water tank cleaning nozzle of the present invention will be described in detail with reference to the drawings. It should be noted that the embodiments shown below are only a part of the preferred modes for carrying out the present invention, and as long as the effect is exhibited, even if a part of the configuration or its shape is changed, the present invention can be can be considered part of the invention.

[Constitution]
First, the configuration of the water tank cleaning nozzle according to the present embodiment will be described with reference to FIGS. 1 to 3. FIG. In the drawings, FIG. 1 is a cross-sectional view showing the side structure of the water tank cleaning nozzle according to the embodiment, and FIG. 2 is a view showing the cross-sectional structure of the water tank cleaning nozzle according to the embodiment when viewed from above. is. Moreover, FIG. 3 is a side view showing a state in which the wiping means has performed the wiping of the slit.

The water tank cleaning nozzle 10 according to this embodiment is basically composed of a nozzle body 12, a wiping means 14, and an operation means 16. As shown in FIG. The nozzle body 12 is composed of a cylindrical member with one end closed and the other end connectable to a suction means. As shown in FIG. 1, one end of the nozzle body 12 is shaped to have a wedge-shaped inclined surface 12a, and the end is closed. One end side of the nozzle body 12 is located on the tip side when the water tank cleaning nozzle 10 is used, and is pressed against bottom sand, gravel, or the like laid on the bottom surface of the water tank 30 (see FIG. 4). By forming one end positioned at the tip of the nozzle body 12 into a wedge shape, it becomes easier to push the tip of the nozzle body 12 into a gap such as bottom sand or gravel.

At one end of the wedge-shaped member, a slit 12b penetrating the inner space of the cylindrical member is formed in the side wall where the inclined surface 12a is not formed. The slits 12b are formed in pairs at opposing positions of the side walls. Although the width and length of the slit 12b are not limited, the slit 12b has a width that does not absorb the gravel laid in the general ornamental fish tank 30, and a bottom sand or the like in the general ornamental fish tank 30. The length should be the same as the thickness that is considered preferable as the laying thickness of the gravel. As an example of a specific width and length of the slit 12b, the width may be approximately 3 mm and the length approximately 30 mm. In addition, the formation end portion of the slit 12b on the one end side may be a position near the end portion of the one end so that the closed state of the end portion can be ensured (the slit 12b does not overlap the end portion).

In addition, it is desirable that the length of the inclined surface 12a provided at one end and the length of the slit 12b are made to correspond to each other and that both have the same length. If the sloped surface 12a having a length equivalent to the depth of the nozzle main body 12 is provided in the bottom sand or gravel, the resistance at the time of thrusting can be reduced. Also, if the length of the inclined surface 12a is equal to the thickness of the bottom sand or gravel, the slit 12b provided corresponding to this length will feed the food clogged in the bottom sand or gravel gaps. This is because it is possible to efficiently absorb garbage such as leftover food and feces.

In addition, by reducing the number of slits 12b (two in this embodiment) and making the opening area sufficiently smaller than the internal cross-sectional area of the cylindrical member, a strong suction force can be obtained, and dust can be efficiently removed. It becomes possible to inhale. Also, by providing the pair of slits 12b on the opposing side walls of the cylindrical member, the arrangement interval between the two slits 12b can be increased. As a result, it is possible to suppress sticking (suction failure) to the nozzle body 12 caused by sucking long-pile moss and large dust from the two slits 12b at the same time. In addition, one end is formed in a wedge shape to change the cross-sectional area of the internal space of the cylindrical member, so that the cross-sectional area of the internal space is small and the buffer capacity of the cylindrical member is reduced. can improve power.

At the other end of the nozzle main body 12, the cylindrical member may be cut off, but as shown in FIGS. It becomes possible to determine the connection position of the suction means. Note that the suction means in this embodiment is not limited as long as it can suck out the water in the water tank 30 through the nozzle body 12, and a hose 32, a tube, or the like is used as a connecting member. (See FIG. 4).

The wiping means 14 is an element that plays a role of wiping the slit 12b and eliminating clogging or the like occurring in the slit 12b. In this embodiment, the wiping means 14 is composed of the shielding member 14a and the slide pin 14b. The shielding member 14 a is a cover that can slide along the nozzle body 12 and is arranged on one end side of the nozzle body 12 . The shielding member 14a is configured to cover a range of the side wall of the nozzle body 12 that overlaps at least the paired slits 12b. Further, the slide pin 14b is fixed to the shielding member 14a and is provided such that a part of the slide pin 14b is inserted into the slit 12b.

By sliding the wiping means 14 with such a structure along the nozzle body 12, the slide pin 14b wipes the inside of the slit 12b, and clogging of the slit 12b can be eliminated. Further, the sliding of the wiping means 14 causes the shielding member 14a to cover the slit 12b. As a result, the suction of water by the nozzle body 12 is temporarily stopped, the suction force acting on the clogging dust is stopped, and the dust adhering to the periphery of the slit 12b can be easily removed.

The operating means 16 is an element for giving a sliding motion to the wiping means 14 described above from a remote portion. Therefore, as long as the wiping means 14 can be operated remotely, the specific configuration is not limited. For example, as shown in FIGS. 1 to 3, the wiping means 14 can be constructed mainly of an operating rod 16a connected to a shielding member 14a. Note that the operating rod 16a may be provided with a finger hook portion 16a1 in order to improve operability. 1 to 3, the operation rod 16a is stably supported by providing two holders 16b1 and 16b2 for the operation rod 16a.

Further, the operating rod 16a is provided with a stopper 16a2, and by providing an urging means 16c between the holder 16b2 and the stopper 16a2, a force is applied to attract the wiping means 14 to the other end side. With such a configuration, it is possible to prevent the slit 12b from being blocked by the wiping means 14 when the operation means 16 is not operated (during normal use). As the biasing means 16c, for example, a coiled spring can be used.

[Action/effect]
The water tank cleaning nozzle 10 configured as described above is used as shown in FIG. Specifically, the other end of the nozzle body 12 is connected to the hose 32 or the like of the suction means, and while the water in the water tank 30 can be sucked, one end of the nozzle body 12 is thrust into the bottom sand or gravel. As a result, the dust deposited in the gaps between the bottom sand and gravel is sucked together with the water through the slit 12b provided in the nozzle body 12, so that the dust that cannot be removed by a permanent filtering device or the like can be removed.

When the suction failure occurs due to the adhesion of gravel, moss, dirt, etc. to the slit 12b while continuing the work of removing the bottom sand and dust in the gaps between the gravel using the water tank cleaning nozzle 10, the operating means 16 is operated to slide the wiping means 14 along the nozzle body 12 in the direction of arrow A (see FIG. 1). By this operation, the slide pin 14b wipes the slit 12b, and gravel, moss, dust, etc. stuck to the slit 12b can be removed. As a result, the suction failure is resolved, and the cleaning work can be continued without raising the water tank cleaning nozzle 10 above the water. Therefore, it is possible to suppress a decrease in work efficiency due to clogging. If the suction failure cannot be resolved by one operation, the same operation may be repeated.

[Modification]
In the water tank cleaning nozzle 10 shown in the above embodiment, a pair of slits 12b are provided in the side wall of the portion at one end of the nozzle body 12 where the inclined surface 12a is not formed. However, as shown in FIGS. 5 and 6, the paired slits 12b may communicate with each other by means of an end slit 12d formed at one end of the nozzle body 12. FIG.

In such a configuration, dust can be sucked not only from the slit 12b provided in the side wall of the nozzle main body 12 but also from the end slit 12d, so that the efficiency of removing dust can be improved.

Further, when the end slit 12d is provided, the wiping means 14 is preferably provided with a slide plate 14c instead of the slide pin 14b. Here, as shown in FIGS. 5 and 6, the slide plate 14c is a member that spans between the paired slits 12b via the shielding member 14a. By providing the slide plate 14c having such a structure, when the wiping means 14 is slid, gravel, moss, dust, etc. stuck to the slit 12b can be discharged at once from the end slit 12d side. , dust removal efficiency and removal rate can be improved.

Further, the tip side of the slide plate 14c is sized to protrude from the end slit 12d when the wiping means 14 is slid to the tip side (see FIG. 6(B)). It is preferable to provide an arrowhead-like inclination as shown in FIGS. Here, the arrowhead-like inclination may be one that is inclined toward the other end side of the nozzle body 12 toward the slit 12b side with the midpoint position between the paired slits 12b as the apex. By providing the above-described arrowhead-like inclination on the tip side of the slide plate 14c, even when the end slit 12d is covered with long-pile moss or is relatively firmly clogged with gravel, It is possible to project the slide plate 14c from the end slit 12d by separating them.

From the viewpoint of eliminating the clogging of the end slit 12d, the slide pins 14b, which are arranged separately in FIG. Therefore, it can be expected to improve the efficiency and effect of clogging elimination.

Further, in the water tank cleaning nozzle 10 shown in the above-described embodiment, the operation means 16 is configured simply by arranging the operation rod 16a. However, the operability of the operating means may be improved by providing a handle (not shown) or a finger hook portion such as a syringe. In addition to simply pushing in the operating rod 16a, as shown in FIG. 7, the operating rod 16a may be operated by gripping a lever 16d. Although the shape and operation mechanism of the lever 16d are not limited, for example, a slider 16e may be arranged at the rear end of the operating rod 16a and a link 16f may be provided between the slider 16e and the lever 16d. According to such a configuration, when the lever 16d pivotally supported by the holder 16b1 is moved in the direction of the arrow B, the link 16f is rotated to move the slider 16e, thereby moving the operating rod 16a in the direction of the arrow A. be able to. As a result, the wiping means 14 can be operated in the same manner as in the above embodiment.

1 to 3 show that the nozzle body 12 is a single body, it may have a split structure as shown in FIG. 8, for example. This is because the parts constituting the nozzle body 12 can be easily manufactured, and the length of the nozzle body 12 can be changed by changing the length of the intermediate pipe 12e. Needless to say, when the length of the nozzle body 12 is made variable, it is desirable to make the length of the operation means 16 and the like variable as well.

In the above-described embodiment, it is explained that the aquarium cleaning nozzle 10 according to the present invention is used for removing dust in the gaps between the bottom sand and gravel of the aquarium 30 for aquarium fish. However, it can also be effectively applied to the work of removing sludge and the like, which tend to cause clogging of cleaning tools.

10 ...... Cleaning nozzle for water tank, 12 ...... Nozzle body, 12 a ...... Inclined surface, 12 b ...... Slit, 12 c ...... Small diameter portion, 12 d ...... End slit, 14 ...... Wiping means , 14a......shielding member, 14b...slide pin, 14c...slide plate, 16...operating means, 16a...operating rod, 16a1...finger rest, 16a2...stopper, 16b1 .

Claims (6)

a nozzle body which is composed of a tubular member which is closed at one end and which can be connected to a suction means at the other end, and which has a slit formed in a side wall near the one end;
a wiping means that slides along the nozzle body and wipes the slit;
and an operation means for allowing the wiping means to slide from the other end of the nozzle body. One end of the nozzle body forms a wedge-shaped body, and the wedge-shaped slanted surface changes the cross-sectional area of the internal space of the tubular member,
2. The water tank cleaning nozzle according to claim 1, wherein the slit is formed in the side wall not forming the inclined surface and has a length corresponding to the length of the inclined surface. A pair of the slits are provided in a side wall that does not form the inclined surface,
3. The water tank cleaning nozzle according to claim 2, wherein the one end is provided with an end slit connecting the pair of slits. 4. The aquarium cleaning nozzle according to claim 1, wherein said wiping means has a shielding member that covers said slit during a sliding operation for wiping said slit. 5. The water tank cleaning nozzle according to any one of claims 1 to 4, wherein the operating means is provided with biasing means for attracting the wiping means to the other end side. 6. The aquarium cleaning nozzle according to any one of claims 1 to 5, wherein the nozzle body has a separable structure.

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