KR101007672B1

KR101007672B1 - Motor on-line flexible pump

Info

Publication number: KR101007672B1
Application number: KR1020100062553A
Authority: KR
Inventors: 남태호
Original assignee: (주)하나메탈
Priority date: 2010-06-30
Filing date: 2010-06-30
Publication date: 2011-01-13

Abstract

PURPOSE: A motor direct connection type flexible pump is provided to be easily powered even in a construction site or a remote area even if power is not supplied by using a DC motor. CONSTITUTION: A motor direct connection type flexible pump comprises an upper casing(10), a lower casing(20), a box-shaped suction unit(40), and a driving unit. A through hole(11) is formed at the center of the upper casing. A flow path(14) is formed between the inner surface(12) and the outer surface of the upper casing. An outlet(15) is integrally formed in the upper casing and is connected to the flow path. The lower casing is assembled with the upper casing and forms a pumping room(60). A mesh-shaped suction hole(41) is formed in the suction unit. The driving unit comprises an impeller(33), a connection bar(32), a DC motor, and a stopper(50).

Description

Motor direct flexible pump {Motor on-line flexible pump}

The present invention relates to a motor-directed flexible pump, more specifically, the internal structure is simple, easy to repair and management, in particular, the flow path formed in close contact with the outer peripheral surface of the drive means in the process of ejecting the suctioned fluid to the upper through the outlet By moving along, it is possible to prevent the driving means from overheating by continuously cooling the driving means which are easily overheated like a motor. The present invention relates to a motor-directed flexible pump that can be easily and simply installed and pumped in an area requiring rapid pumping such as an industrial site or a flooded area.

Generally, a water pump is installed in a water purification plant, a wastewater treatment plant, a cellar where flooding is concerned, or a fish farm that contains a large amount of water.

These submersible pumps are classified into submersible submersible motor pumps, submersible submersible motor pumps and ground-mounted installations, and are always in contact with water and thus are waterproofed.

Here, looking at the configuration of the submersible pump as shown in Figure 1 of the electric motor unit 1, the water chamber 2 is coupled to the lower portion of the electric motor unit 1, and the water chamber of An impeller 4 is accommodated in the case 3 coupled to the lower portion, and is coupled to the lower portion of the drive shaft 1a of the electric motor unit 1 to rotate along the drive shaft of the electric motor unit 1. It is done by

However, when the submersible pump discharges the water contained in the water purification plant, wastewater treatment plant, basement, fish farm, etc., the water level of the water contained in the water purification plant, wastewater treatment plant, basement, fish farm is lowered, and the electric motor unit 1 is exposed to the air. When the electric motor unit is driven while being exposed to air, there is a problem that the electric motor unit may be overheated and cause a breakdown.

In addition, when the drive shaft rotation of the electric motor unit is not smooth to rotate smoothly the drive shaft of the electric motor in order for the operator to remove the electric motor part as a whole, there is a problem that the structure of the electric motor part is very complicated, general workers disassemble And there is a problem that only the designated skilled person should be repaired and cleaned because it is impossible to assemble, and small companies have a problem that can not be used until the repair by sending the water pump to the outside.

In addition, existing submersible pumps can only be used in places where electricity is supplied smoothly by using AC motors, and it is impossible to use them in places where electricity cannot be used, such as in the mountains or backcountry. .

In addition, as described above, a flexible pump using an engine is used in an area where electricity cannot be supplied. Usually, the distance between the pump and the engine is about 5 meters to the flexible pipe, so that a lot of power is wasted in the flexible pipe and pumping force is increased. There was a problem of deterioration.

The present invention has been made in consideration of the above circumstances, and an object of the present invention is a simple direct configuration of the submersible pump, even if it is an unskilled worker, easy to repair and cleaning management, no need for a separate skilled technician A / S direct connection In providing a flexible pump.

In addition, another object of the present invention is to provide a motor-directed flexible pump that can prevent the failure of the motor due to heat by cooling the fluid pumped heat generated in the motor when the overload occurs.

In addition, another object of the present invention is to use a DC motor to drive the motor using a power source such as a battery of the vehicle, there is no restriction on the place of use, the motor direct type that can be used to receive a variety of power supply In providing a flexible pump.

In addition, another object of the present invention is a motor-directed flexible pump having a high efficiency by transferring the power consumed in the flexible cable, which is a problem of the flexible pump used in the area where the conventional power supply is not possible, directly to the impeller without leakage. In providing.

The present invention has been made in order to achieve the above object, the through-hole is formed in the center and the upper casing and the upper casing is formed integrally with the flow passage communicating with the flow path between the inner surface and the upper surface, and assembled with the upper casing A pumping chamber is formed therein, and a lower casing having an inlet formed on the bottom surface thereof is assembled to an outer circumferential surface of the inlet of the lower casing. It is characterized by providing a motor-directed flexible pump comprising a drive means assembled with the shaft.

In addition, the driving means is inserted into the through-hole in the state in which the shaft is inserted into the bearing in the lower portion of the upper casing, the impeller is formed integrally with the male thread on the upper side, the female screw hole of one side is screw-assembled and the other groove is formed on the other side It comprises a connection bar, a DC motor in which a square rotating shaft is fitted into each groove of the connection bar, and a stopper for closing the through hole in a state in which a driving means is inserted into the through hole.

The upper casing may further include a guide plate for guiding the sucked fluid spaced apart from the impeller at a predetermined interval to the flow path side to smoothly move the sucked fluid to the outlet port side.

As described above, the motor-directed flexible pump according to the present invention has a flow path discharged after acting as a cooling water to cool the heat generated by the motor by being discharged through the outer circumferential surface of the motor even though the motor portion is exposed to the water surface. By having a long time use there is no effect caused by the problem of overheating of the motor.

In addition, the pump casing and the driving means can be easily separated and assembled, so even if they are unskilled, the pump can be easily removed for internal cleaning and management, so it is easy to store and manage. The effect is to use a fully prepared motor-directed flexible pump.

In addition, by using a DC motor as a drive motor, it is possible to supply power using a car battery together with ordinary electricity, so that it can be used smoothly even in areas where power supply is impossible.

In addition, by connecting the motor and the impeller integrally, all the electric power of the motor can be supplied to the impeller without the power consumed by the conventional flexible tube, thereby maximizing the pumping efficiency.

1 is a schematic view showing the structure of a conventional submersible pump.
2 is a perspective view of a motor-directed flexible pump according to the present invention.
Figure 3 is an exploded perspective view showing the assembly state of the upper casing and the drive means of the motor-directed flexible pump according to the present invention.
Figure 4 is a cross-sectional view for explaining the flow of the fluid of the motor-directed flexible pump according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

2 is a perspective view of a submersible pump according to the present invention.

As shown, the motor-directed flexible pump 100 of the present invention has a large upper casing 10, a lower casing 20 assembled with the upper casing 10, and a drive assembled inside the upper casing 10. Means 30 and a suction part 40 assembled to the bottom surface of the lower casing 20.

The upper casing 10 has a through hole 11 formed at the center thereof, and a flow path 14 is formed between the inner surface 12 and the outer surface 13 and a spout hole communicating with the flow passage 14 on the outer surface 13 ( 15) are integrally formed.

In addition, a female threaded hole 11a is formed at the distal end of the through hole 11 to be assembled with the male threaded portion 51 of the stopper 50, and a stepped portion 11b is formed therein to be inserted into the through hole 11. Allow the motor 31 to be seated.

In addition, the upper casing 10 is formed in a circular shape so that a circular flow passage 14 is formed on the entire inner surface 12 so that the motor 31 accommodated in the through hole 11 can be cooled quickly and easily. It is preferable to.

In addition, in order to smoothly move the pumped water from the pumping chamber 60 to the upper flow path on the lower surface of the upper casing 10 by forming the guide plate 16 spaced apart from the impeller 33 at a predetermined distance by Induce the flow direction.

In addition, the outer circumferential surface of the spout 15 of the upper casing 10 is formed in the shape of a wedge (15a) is preferably formed in a structure that can prevent the fitting hose (not shown) to fall out.

In addition, by forming a ring 17 on the upper outer surface of the upper casing 10 is formed so as to facilitate the movement.

The lower casing 20 is assembled with the upper casing 10 and inserts a packing (not shown) into a close contact surface so as to be in close contact with watertightly to form a pumping chamber 60 therein.

In addition, the inlet 21 is formed on the bottom surface of the lower casing 20 to communicate with the outside.

In addition, one side of the lower casing 20 is formed in communication with the flow passage 14 of the upper casing 10 so that the water moved by the guide plate 16 along the flow path of the upper casing 10 along the spout 15 It is formed to be discharged to).

On the other hand, the suction unit 40 is formed with a plurality of suction holes 41 in the form of a mesh on the side of the outer peripheral surface of the suction port 21 of the lower casing 20 is assembled.

In addition, the suction part 40 has a structure that prevents foreign substances from being sucked to the bottom surface by forming a suction hole 41 on the side in a state of being blocked on the bottom surface and water can flow into the side.

The drive means 30 is inserted into the through hole 11 formed in the upper casing 10 to form a bearing 34 in the lower portion of the through hole 11 and to form the shaft 33a of the impeller 33. By assembling, the impeller 33 is rotatably fixed, and the connecting shaft 32 is extended by screwing to the end of the shaft 33a, and an angular rotary shaft connected to the DC motor 31 in the angular groove 32a on the other side ( The impeller 33 is rotated by inserting and connecting 31a) from the top.

In addition, as described above, the driving means 30 is formed in the inside of the through hole 11 so as to be watertightly maintained by sealing the through hole 11 with a stopper 50 in a state of being assembled sequentially.

The stopper 50 has a hole 52 through which the power line of the motor 31 is exposed to be watertight, and a male thread 51 is formed at a side thereof and screwed into the through hole 11.

Hereinafter, with reference to Figure 4 will be described in detail the operating ecology at the time of pumping the motor-directed flexible pump according to the present invention.

As shown, the submersible pump 100 of the present invention is positioned below the water surface of the place where the water is to be pumped using the ring 17.

When power is supplied to the DC motor in the position as described above, the rotational force is transmitted to the connecting bar 32 formed in the through hole 11, and the impeller 33 rotates again so that the water contained in the pumping chamber 60 is rotated. It moves along this flow path 14 and is discharged to the upper part through the blower outlet 15. As shown in FIG.

In this process, the motor generates heat due to the long time rotation and the load generated from the fluid. This heat is generated by the motor 31 while the pumped fluid moves along the flow path 14. By absorbing and discharging the motor, the motor can operate stably.

As described above, it is possible to operate for a long time by preventing the load of the motor by a unique structure in which a flow path is formed outside the driving means of the submersible pump.

Although the present invention has been described with reference to one embodiment shown in the accompanying drawings, it will be understood that various modifications and other embodiments are possible to those skilled in the art.

100 ... flexible pump 10 ... upper case 11 ... through hole
11a ... female thread 11b ... step 12 ... inside
13 ... exterior 14 ... euro 15 ... outlet
15a ... Wedge 16 ... Guide plate 17 ... Ring
20 ... lower case 21 ... inlet port 30 ... drive means
31 ... DC motor 31a ... axis of rotation 32 ... connection bar
32a ... Angular groove 32b ... Female threader 33 ... Impeller
33a ... shaft 33b ... male 34 ... bearing
40 ... suction 41 ... suction 50 ... plug
51 ... male 52 ... Bore 60 ... pumping chamber

Claims

Through-hole 11 is formed in the center and the upper casing (10) integrally formed between the inner surface 12 and the outer surface 13, the flow passage 14 and the ejection opening 15 communicating with the flow passage 14 on the outer surface and ;
A lower casing 20 assembled with the upper casing 10 to form a pumping chamber 60 therein and having a suction port 21 formed on a bottom surface thereof;
A suction part 40 of a housing shape, which is assembled to an outer circumferential surface of the suction port 21 of the lower casing 20 and has a suction hole 41 having a mesh shape at a side thereof;
The impeller 33 is inserted into the through hole 11 in a state in which the shaft 33a is inserted into the bearing 34 at the lower portion of the upper casing 10, and the male screw portion 33b is integrally formed at the upper portion of the upper casing 10 and the male screw. The female screw hole 32b of one side is screw-assembled in the portion 33b, and the connecting bar 32 having the angular groove 32a formed on the other side thereof, and the angular rotating shaft 31a of the angular groove 32a of the connecting bar 32. A driving means (30) composed of a fitted DC motor (31) and a stopper (50) for sealing the through hole (11) in a state in which the driving means (30) is inserted into the through hole (11); Include,
Here, the motor-directed flexible pump characterized in that it is configured to absorb the heat generated by the drive means while moving along the flow path roll formed on the outer peripheral surface of the drive means in the process of the discharged fluid is discharged to the upper through the outlet.

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