JP3338696B2 - Fluid pump - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid pump, and more particularly, to a fluid pump which is driven automatically by a motor as a power source inside a cylinder of an automatic fluid pump which sucks and discharges a fluid. Provision of overflow prevention means,
The present invention relates to a fluid pump that solves a problem caused by an overflow phenomenon during a pumping operation.

[0002]

2. Description of the Related Art Generally, an automatic fluid pump uses a suction force generated by rotation of a suction fan driven by a motor to suck fluid inside a container and discharge the fluid through a discharge port on the other side. In such an automatic fluid pump, a long and thin suction pipe is mounted at a distal end so that it can be inserted into the container, and a battery mounted in which a dry battery is stored at the upper part of the suction pipe. A cylindrical portion having a discharge port formed on one side thereof; and a suction fan provided inside the suction pipe, which is connected to the inside of the cylindrical portion and driven by a motor operated by a user to rotate the suction fan. A suction pumping portion for sucking a fluid into the cylindrical portion by suction force; and a middle portion between the cylindrical portion and the suction pipe, wherein the cylindrical portion is fixed to an inlet of the container. Fixed part; discharges fluid Discharge hose to a: than composed.

[0003] In the automatic fluid pump, an air-hole is formed at one side of the suction pipe to remove fluid remaining in a suction pipe and a discharge pipe of the fluid pump after a pumping operation.

That is, an air hole through which external air is introduced is formed outside the suction pipe to allow air to flow through the air hole when an overflow phenomenon occurs or when a fluid is removed after a pumping operation. The fluid remaining in the suction pipe or the like of the fluid pump flows down. In the case of a fluid pump operated by a manual pumping operation, an air vent cap is formed at an upper portion of the cylinder portion, and after the pumping operation is completed, the air vent cap is opened to supply external air to the inside of the cylinder portion. The pressure inside the cylinder is set to atmospheric pressure to remove any remaining fluid.

Also, as disclosed in a Korean patent application (Japanese Patent Application No. 21609, 1999) related to the present applicant's application, an air groove is formed inside the cylinder of a fluid pump to perform pumping work or to prevent an overflow phenomenon. There have also been proposed devices that prevent a phenomenon in which a fluid flows down along a suction pipe.

[0006]

As described above, among the conventional fluid pumps, an automatic fluid pump is used after a pumping operation.
In order to remove the fluid remaining inside the cylinder and to prevent the overflow phenomenon during the pumping operation,
An air hole is formed in one side of the suction pipe to allow external air to flow in.In such a fluid pump,
Since the fluid flows down along the suction pipe even during the pumping operation, there is a problem that the appearance becomes poor and the suction pipe is easily contaminated.

Further, since external air is supplied through an air hole formed on one side of the suction pipe, there is a problem that it takes time to remove the remaining fluid or to discharge the fluid in the case of an overflow phenomenon. .

As already described in detail, when an air hole is formed inside the cylinder of the fluid pump in order to prevent the overflow phenomenon, first, at the time of the overflow phenomenon due to back pressure or the like, the fluid is left inside the cylinder part. After the battery has been used for a long period of time, there is also a problem that moisture or the like flows into a dry cell mounting room or the like and greatly affects the operation of the entire system.

SUMMARY OF THE INVENTION An object of the present invention is to provide an automatic fluid pump for sucking and discharging a fluid by using a motor as a power source, provided with an overflow preventing means which is automatically operated at the same time as the motor is driven, to prevent an overflow phenomenon during a pumping operation. It is an object of the present invention to provide a fluid pump which solves the problems caused by the above.

Another object of the present invention is to prevent an overflow phenomenon caused by a back pressure or the like or a foreign substance from flowing in the pumping operation of a fluid pump at the same time as the driving of a motor. To provide a fluid pump that can improve the reliability of the fluid pump.

It is still another object of the present invention to provide a fluid pump which further improves the merchantability and the convenience of work.

[0012]

In order to achieve the above object, a fluid pump according to the present invention includes a cylinder having a predetermined width and size, and a space having a predetermined depth inside an upper portion of the cylinder. A discharge part 12 and an inflow part 13 are provided at one side of the center of the cylinder and at a lower part of the cylinder, and a residual fluid discharge part 14 is provided at one side of the inflow part 13. Is formed, and a mounting portion 15 is provided at the center of the bottom surface of the space portion 11 to allow the discharge portion 12 and the space portion 11 to communicate with each other.
A cylinder body 10 provided with a moving groove 16 connected to the residual fluid discharge section 14 on one side of the mounting section 15; A suction pipe 20 attached to an inflow portion 13 formed at a lower portion of the body portion 10 for sucking a fluid contained in a container and discharging the fluid through the discharge portion 12; formed on one side of a central portion of the cylindrical body portion 10; A discharge hose 30 mounted on the discharge part 12 and sending out the fluid flowing through the suction pipe 20 to the outside through the discharge part 12; and a discharge hose 30 mounted on the upper part of the space part 11 of the cylindrical body part 10 and having an operation switch 41 on the upper part. A battery mounting portion 40 having a dry battery B provided therein; and a tubular body portion loosely inserted into a tubular mounting portion 15 formed at the center of the inside of the tubular body portion 10, and the tubular body portion is provided. The upper part has a fitting projection 52 at the upper center. A blocking cap 50 having an opening / closing plate 51 attached thereto; and a tubular portion fixed to the outside of the mounting portion 15 in which the blocking cap 50 is loosely inserted. A fluid retaining portion 62 having a predetermined size and having a predetermined portion 61 is formed, and is inserted into the moving groove 16 of the tubular body portion 10 from one side of the fluid residual portion 62 and is connected to the residual oil discharging portion 14. Hopper section 6 with 63 formed
0.

In the fluid pump 100 of the present invention, the fitting projection 52 formed at the upper center of the blocking cap 50 is fitted into the inflow hole 61 of the hopper portion 60 while the blocking cap 50 is lifted by the suction force of the motor M at the same time as the operation. As a result, it is possible to prevent the fluid from flowing into the upper part, so that it is possible to prevent the overflow phenomenon occurring during the pumping operation in advance and to prevent the fluid from flowing into the upper part of the cylindrical body part 10. Therefore, the merchantability and the reliability of the product can be improved.

The outside of the cylindrical main body of the blocking cap 50 is attached to the blocking cap 50 according to the operation of the motor M.
It is desirable to form a guide projection 53 for easily raising and lowering the inside of the mounting portion 15.

[0015]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view showing the internal shape of the fluid pump of the present invention, FIG. 2 is an enlarged sectional view of a main part showing the internal formation of the fluid pump of the present invention, and FIG. FIG. 4 is an enlarged sectional view of a main part showing a state where fluid is collected and discharged to the outside when the blocking cap cannot easily block the hopper inflow groove of the fluid pump of FIG. FIG. 5 is a plan view showing the internal shape of the pump, FIG. 5 is an enlarged exploded perspective view of a main part showing a state in which a blocking cap and a hopper are sequentially coupled to a mounting part of the fluid pump according to the present invention, and FIG. FIG. 4 is an enlarged cross-sectional view of a main part showing a state in which a shutoff cap blocks an inflow hole of a hopper section by a suction force when the fluid pump of the present invention is operated.

As shown in FIGS. 1 to 6, the cylindrical body 10 of the fluid pump 100 of the present invention is formed with a predetermined width and size, and a space 11 having a certain depth is formed inside the upper part of the cylindrical body. And a discharge portion 12 and an inflow portion 13 that communicate one side of the center of the cylindrical body and the lower part of the cylindrical body with each other.

A residual fluid discharge portion 14 is formed at one side of the inflow portion 13 of the cylindrical body portion 10, and a mounting portion for connecting the discharge portion 12 and the space portion 11 to each other is formed in the center of the bottom surface of the space portion 11. A moving groove 16 connected to the residual fluid discharging unit 14 is provided on one side of the mounting unit 15.

The mounting portion 15 formed on the bottom surface of the space portion 11 of the cylindrical body portion 10 is formed as a cylindrical body penetrating the inside, and the upper portion of the cylindrical body is formed to project to a predetermined height. ing.

On the other hand, inside the mounting portion 15, an opening / closing plate 51 is formed on the upper part of a cylindrical main body, and a shutoff cap 50 having a fitting projection 52 at the center of the opening / closing plate 51 is provided.
The cylindrical main body is loosely inserted.

The shut-off cap 50 is connected to the fluid pump 10
When 0 is operated, it selectively lifts and lowers according to the presence or absence of the operation of the motor M, and serves to block fluid from flowing into the upper part in the case of an overflow phenomenon.

A cylindrical portion fitted and fixed to the outside of the mounting portion 15 is provided outside the mounting portion 15 in which the blocking cap 50 is loosely inserted. A fluid residual portion 62 having a predetermined size and having a predetermined size 61 is formed on one side of the fluid residual portion 62.
Guide port 63 fitted into and connected to residual fluid discharge portion 14
Is mounted.

The hopper section 60 is provided with an inflow hole on the bottom surface of the fluid residual section 62 at the upper part of the cylinder in order to prevent the fluid from flowing into the upper part in the event of an overflow phenomenon occurring during the operation of the fluid pump 100. A mechanism for shutting off 61 is provided.

That is, the blocking cap 50 is loosely fitted in the mounting portion 15 formed on the bottom surface of the space portion 11 of the cylindrical body portion 10, and the hopper portion 60 is further mounted on the outside thereof. When the motor M of the fluid pump 100 is operated, the shut-off cap 50 is lifted up by the suction force of the motor M, and the fitting projection 52 of the shut-off cap 50 is fitted into the inflow hole 61 of the hopper section 60, so that the inflow is performed. Hole 61
Will shut off the entrance.

Therefore, when the fluid pump 100 is operated, the shut-off cap 50 shuts off the inflow hole 61 of the hopper portion 60 while being lifted upward by the suction force of the motor M. In the case of the overflow phenomenon, the fluid can be prevented from flowing into the upper portion of the cylindrical body 10.

The opening / closing plate 51 formed on the upper portion of the cylindrical body of the blocking cap 50 is brought into close contact with the supporting step 17 formed on the bottom surface of the inflow hole 61 of the hopper 60 when the blocking cap 50 rises. In addition, it plays an auxiliary role of strongly fitting the fitting projection 52 of the blocking cap 50 to the inflow hole 61 of the hopper section 60.

As described above, the shut-off cap 50 is lifted upward by the suction force of the motor M to shut off the inflow hole 61 of the hopper portion 60, so that a relatively light material is used in consideration of the suction force of the motor M and the like. Preferably, it is formed.

On the outer side of the cylindrical body of the blocking cap 50, the blocking cap 50 is
Guide protrusion 5 so that it can be easily moved up and down depending on the operation of
3 is desirably formed.

That is, a large number of guide protrusions 53 are formed on the outer portion of the blocking cap 50 so that the blocking cap 50 that selectively moves up and down inside the mounting portion 15 is easily moved up and down by line contact instead of surface contact. It is preferable to use it.

On the other hand, as described above, when the operation of the motor M is completed, the shut-off cap 50 that shuts off the inflow hole 61 of the hopper 60 at the same time as the operation of the motor M is dropped down by its own weight, and the inflow of the hopper 60 is stopped. Projection 52 fitted from hole 61
Is detached.

At this time, the air in the space 11 of the cylindrical body 10 moves downward through the inflow hole 61 of the hopper 60, and causes the remaining fluid to flow downward.
It can also serve as an air vent.

Therefore, the mounting portion 15 of the cylindrical body 10
The shut-off cap 50 to be fitted can open and close the inflow hole 61 of the hopper section 60 while being raised and lowered according to the operation of the motor M, so that an overflow phenomenon occurring during the operation of the fluid pump 100 can be prevented in advance. After the operation of the fluid pump 100, the function of an air vent for dropping the remaining fluid downward can be simultaneously performed.

On one side of the fluid residual portion 62 formed at the upper portion of the cylinder of the hopper portion 60, a guide port which is fitted into the moving groove 16 of the cylinder 10 and is connected to the residual fluid discharge portion 14. 63 is formed.

The role of the guide port 63 is as follows. If the fluid moves upward due to an overflow phenomenon without the fitting projection 52 of the blocking cap 50 being tightly fitted to the inflow hole 61 due to adhesion of a foreign substance or the like to the inflow hole 61 of the hopper portion 60, first, the hopper portion 60 A certain amount of fluid is stored in the fluid residual portion 62 of the first fluid. When the fluid in the hopper section 60 exceeds a predetermined liquid level, the guide port 63 receives the fluid and moves the fluid to the residual fluid discharge section 14 located at the lower portion of the cylindrical body section 10, which is generated by an overflow phenomenon. Solve a problem.

That is, if a situation occurs in which the shutoff cap 50 does not shut off the inflow hole 61 of the hopper section 60 and a certain amount of fluid is stored in the fluid residual section 62 of the hopper section 60 and exceeds a specified level, Fluid moves through the guide port 63 formed on one side of the fluid residual portion 62 and moves downward through the fluid residual portion 62 formed at the lower portion of the cylindrical body portion 10, thereby causing a problem accompanying the overflow phenomenon. Prevent it.

As described above, the fluid pump 100 of the present invention
Is provided with a blocking cap 50 that floats by the suction force of the motor M in the mounting portion 15 of the cylindrical body portion 10 and a hopper portion 60 having an inflow hole 61 on the outside thereof.
At the same time as the operation of the fluid pump 100, the shut-off cap 50 is raised by the suction force of the motor M, and the inflow hole 61 of the hopper 60
Can be prevented to prevent a problem that occurs when the fluid flows into the upper part in the case of the overflow phenomenon.

When the operation of the fluid pump 100 is completed, the shutoff cap 50 falls down by its own weight.
At this time, the inflow hole 61 of the hopper section 60 is opened, the air at the upper part moves to the lower part, and the remaining fluid drops to the lower part.

Therefore, unlike the conventional fluid pump, it is possible to prevent an overflow phenomenon that may occur during the pumping operation in advance.

[0039]

As described above, according to the fluid pump of the present invention, firstly, it is possible to prevent in advance the overflow phenomenon which is likely to occur during the operation of the fluid pump 100, and to improve the durability of the product. Can be done.

Second, after the operation of the fluid pump 100, the blocking cap 50 is separated from the inflow hole 61 of the hopper portion 60 and the remaining fluid flows down, so that the function of an air vent can be performed.

Third, when the shut-off cap 50 cannot shut off the inflow hole 61 of the hopper 60 during the operation of the fluid pump 100, the fluid is condensed from the hopper 60 and then passed through the guide port 63. Since it is used after being moved to the residual fluid discharge part 14, the convenience of use can be improved.

Therefore, according to the present invention, the commercial value of the fluid pump 100 can be increased and the reliability of the product can be improved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing the internal shape of a fluid pump according to the present invention.

FIG. 2 is an enlarged sectional view of a main part showing an internal shape of the fluid pump of the present invention.

FIG. 3 is an enlarged cross-sectional view of a main part showing a state in which fluid is collected and discharged to the outside when the shut-off cap cannot easily shut off the hopper inflow groove during operation of the fluid pump of the present invention.

FIG. 4 is a plan view showing the internal shape of the fluid pump of the present invention.

FIG. 5 is an enlarged exploded perspective view of a main part showing a state in which a blocking cap and a hopper are sequentially coupled to a mounting part of the fluid pump of the present invention.

FIG. 6 is an enlarged cross-sectional view of a main part showing a state in which a shutoff cap blocks an inflow hole of a hopper unit by suction force when the fluid pump of the present invention is operated.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... cylindrical part, 11 ... space part, 12 ... discharge part, 13 ... inflow part, 14 ... residual oil discharge part, 15 ... mounting part, 16 ... moving groove, 17 ... support step part, 20 ... suction pipe, 21 ... Suction fan, 30 ... Discharge hose, 40 ... Dry cell mounting part, 41 ... Operation switch, 50 ... Blocking cap, 51 ... Opening / closing plate, 52
... fitting protrusion, 53 ... guide protrusion, 60 ... hopper part, 61
... inflow groove, 62 ... fluid residual portion, 63 ... guide port, 100 ...
Fluid pump, M: motor, B: dry cell

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2001-165084 (JP, A) JP-A-61-186887 (JP, U) JP-A 50-80804 (JP, U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) F04D 13/00 F04F 10/00

Claims (2)

(57) [Claims] 1. A cylindrical body having a predetermined width and size, a space portion 11 having a predetermined depth is disposed inside an upper part of the cylindrical body, and one central side of the cylindrical body and the cylindrical body are provided. A discharge part 12 and an inflow part 13 communicating with each other are provided at a lower part of the space part 11. A residual fluid discharge part 14 is formed on one side of the inflow part 13. The space 1
And a mounting portion 15 for allowing the mounting portions 1 to communicate with each other.
5, a cylindrical body 10 provided with a moving groove 16 connected to the residual fluid discharge unit 14; and a suction fan 21 which is operated by a motor M at a lower part thereof.
A suction pipe 20 attached to an inflow portion 13 formed at a lower portion of the cylindrical body for sucking fluid contained in a container and discharging the fluid through a discharge portion 12; And a discharge hose 30 that is attached to the outlet and sends out the fluid that has flowed in through the suction pipe 20 to the outside through the discharge unit 12.
A dry battery mounting portion 40 mounted on the upper part of the space portion 11 of the cylindrical body portion 10, provided with an operation switch 41 at an upper portion, and having a dry battery B provided inside; and formed at the center of the inner side of the cylindrical body portion 10. A blocking cap 50 in which a tubular main body is loosely inserted into the mounting portion 15, and an opening / closing plate 51 having a fitting projection 52 at a central upper portion is attached to an upper portion of the tubular main body; A cylindrical portion fixed to the outside of the mounting portion 15 into which the cap 50 is loosely inserted, and a fluid residual portion 62 of a predetermined size having an inflow hole 61 on a bottom surface is formed at an upper portion of the cylindrical portion; It is characterized in that it comprises a hopper section 60 in which a guide port 63 is formed which is fitted into the moving groove 16 of the cylindrical body section 10 from one side of the fluid residual section 62 and connected to the residual oil discharge section 14. And fluid pump. 2. The outside of the tubular main body of the blocking cap 50 is provided with a blocking cap 50 according to the operation of the motor M.
The fluid pump according to claim 1, wherein a guide projection (53) for easily raising and lowering the inside of the mounting portion (15) is formed.