KR101664269B1 - drainage pump - Google Patents

drainage pump Download PDF

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Publication number
KR101664269B1
KR101664269B1 KR1020160080460A KR20160080460A KR101664269B1 KR 101664269 B1 KR101664269 B1 KR 101664269B1 KR 1020160080460 A KR1020160080460 A KR 1020160080460A KR 20160080460 A KR20160080460 A KR 20160080460A KR 101664269 B1 KR101664269 B1 KR 101664269B1
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KR
South Korea
Prior art keywords
water
impeller
guide member
rotary shaft
water pipe
Prior art date
Application number
KR1020160080460A
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Korean (ko)
Inventor
하진수
Original Assignee
대성펌프공업주식회사
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Priority to KR1020160080460A priority Critical patent/KR101664269B1/en
Application granted granted Critical
Publication of KR101664269B1 publication Critical patent/KR101664269B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/24—Vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/548—Specially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The present invention relates to a drain pump of a new structure which suppresses noise and vibration produced when driving. According to the present invention, the drain pump comprises a guide member (50) extended from an inner circumferential surface of an intake hole (11) of a drain pipe (10) to a middle portion of the intake hole (11). When an impeller (30) is rotated to suck water into the intake hole (11) of the drain pipe (10), the sucked water is guided to rise along a front surface and a rear surface of the guide member (50). Therefore, the water sucked into the intake hole (11) is prevented from being rotated in a spiral direction by the impeller (30), and the water is discharged upwards to minimize a vortex caused by the water rotating with the impeller (30) to minimize noise and vibration by a vortex.

Description

Drainage pump

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain pump of a new structure capable of suppressing generation of noise and vibration generated during driving.

1, a drain pipe body 10, which is formed so as to extend in the up-and-down direction and has an absorption port 11 and a drain port 12 at the lower end and the upper end, respectively, An impeller 30 provided at the lower end of the rotary shaft 20 so as to be positioned in the lower side of the water pipe 10; And a drive motor 40 that is connected to the drive motor 20.

At this time, the drain pipe body 10 is formed in the form of a straight pipe having a constant diameter at the upper and lower ends, and the lower absorption pipe 11 is installed so as to be submerged in the water stored in the water collecting tank of the water pipe. And connected to a separate drainage pipe (13).

The impeller 30 is composed of a head 31 coupled to the lower end of the rotary shaft 20 and a plurality of blades 32 extending radially in the periphery of the head 31.

At this time, the head portion 31 is formed in a block shape extending in the vertical direction and the central portion of the lower end portion protruding forward. As described later, when the impeller 30 is rotated and sucks water, So that the fluid resistance generated while passing through the periphery of the first electrode 31 can be reduced.

Therefore, when the rotary shaft 20 and the impeller 30 are driven by the driving motor 40, the impeller 30 sucks the water in the water reservoir through the absorption port 11 of the water pipe 10, 12 to the drain pipe 13.

However, the drain pump sucks water while the impeller 30 is rotated in the lateral direction, so that the inhaled water is rotated in the spiral direction together with the impeller 30 to generate a vortex, .

In particular, the drain pipe body 10 is formed in the shape of a straight pipe extending in the vertical direction, and the head portion 31 of the impeller 30 is formed in the form of a block extending in the vertical direction, The cross-sectional area of the flow path of the water at the installed position becomes narrow.

Accordingly, the water sucked into the absorption port 11 of the water pipe 10 suddenly increases in speed as it passes through the periphery of the impeller 30, and the water passing through the impeller 30 is rapidly lowered again Thus, as the water velocity is rapidly changed, particles of water collide with each other, causing a great impact and noise.

Therefore, there is a need for a new method to solve such a problem.

Patent No. 10-1524006,

SUMMARY OF THE INVENTION It is an object of the present invention to provide a drain pump of a new structure capable of suppressing noise and vibration generated during driving.

In order to achieve the above object, according to the present invention, there is provided an air conditioner, comprising: a water pipe body (10) having an absorption port (11) and a water outlet port (12) An impeller 30 provided at a lower end of the rotary shaft 20 so as to be positioned at a lower side of the water pipe body 10 and connected to the rotary shaft 20; A guide member 50 extending to the center of the absorption port 11 is provided on the inner peripheral surface of the absorption port 11 of the water pipe 10, 50 are formed in a vertically long and thin plate shape so that the water sucked into the absorption port 11 of the water pipe 10 is guided to rise along both front and rear surfaces so that water is swirled inside the water pipe 10 So as not to cause the drainage A pump is provided.

According to another aspect of the present invention, the impeller 30 includes a head 31 coupled to a lower end of the rotary shaft 20, and a plurality of blades 32 provided on a circumferential surface of the head 31 And the head portion 31 is formed in a shape of a block extending in the vertical direction and having the largest diameter at the center portion and a small diameter at the upper and lower ends and the lower end portion of the water pipe body 10, And a diameter-enlarged portion (14) corresponding to the diameter-enlarged portion is formed.

According to another aspect of the present invention, the guide member 50 is connected to the lower end of the water pipe 10 so as to be laterally angularly adjustable, and is connected to the guide member 50, A rotational speed measuring means 70 provided on the rotational shaft 20 for measuring a rotational speed of the rotational shaft 20 and the impeller 30; And a control means 90 for receiving the signal of the impeller 30 and controlling the angle adjusting means 60 according to the rotational speed of the impeller 30 to adjust the angle of the guide member 50. [ A drain pump is provided.

According to another aspect of the present invention, the apparatus further includes vibration sensing means (80) provided in the water pipe (10) to measure vibration generated when the impeller (30) is driven, When the vibration of the water pipe (10) exceeds a preset level, it is determined that the foreign substance (1) is caught in the guide member (50) and the drive motor (40) The water introduced into the interior of the water pipe 10 flows backward to the absorption port 11 of the water pipe 10 due to its own weight so as to remove the foreign matter 1 caught by the guide member 50 .

According to another aspect of the present invention, an auxiliary impeller 100 rotatably coupled to an intermediate portion of the rotating shaft 20, and an auxiliary impeller 100 coupled to the rotating shaft 20 so as to be able to move up and down but not rotate, A clutch member 110 coupled to the impeller 100 for drivingly connecting the rotary shaft 20 and the auxiliary impeller 100 to each other and a clutch member 110 coupled to the clutch member 110, Further comprising a buoyant body (120) for lifting the clutch member (110) according to the flow of water to be coupled to the auxiliary impeller (100).

The drain pump according to the present invention is characterized in that the guide member 50 extending to the center of the absorption port 11 is provided on the inner peripheral surface of the absorption port 11 of the water distribution pipe body 10 so that the impeller 30 is rotated, When the water is sucked into the absorption port 11 of the guide member 10, the water to be sucked is guided to rise along both the front and rear surfaces of the guide member 50.

Therefore, water that is sucked into the absorption port 11 is prevented from rotating in the spiral direction by the impeller 30, and water is discharged upward, whereby water is rotated together with the impeller 30 to generate a vortex And minimizes the generation of noise and vibration due to the vortex generated as described above.

1 is a front sectional view showing a conventional drain pump,
2 is a front sectional view showing a drain pump according to the present invention,
3 is a front sectional view showing a main part of a drain pump according to the present invention,
4 is a side cross-sectional view showing a substantial part of a drain pump according to the present invention,
5 is a front sectional view showing a second embodiment of the drain pump according to the present invention,
6 is a circuit diagram showing a second embodiment of the drain pump according to the present invention,
7 is a side cross-sectional view showing the main part of the second embodiment of the drain pump according to the present invention,
8 and 9 are reference views for explaining the operation of the second embodiment of the drain pump according to the present invention,
10 and 11 are front sectional views showing a third embodiment of a drain pump according to the present invention,
12 is a plan sectional view showing the clutch member of the third embodiment of the drain pump according to the present invention,
13 and 14 are views showing the third embodiment of the drainage pump according to the present invention. Fig.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIGS. 2 to 4 show a drain pump according to the present invention, which includes a drain pipe body 10 having an absorption port 11 and a drain port 12 formed at the lower end and the upper end, respectively, An impeller 30 provided at the lower end of the rotary shaft 20 so as to be positioned in the lower side of the water pipe 10; And a drive motor 40 that is connected to the drive motor 20.

At this time, the water pipe (10) is installed so that the absorption port (11) at the lower end is immersed in the water stored in the water collecting tank of the water pipe, and the upper water pipe (12) When the impeller 30 is driven by the driving motor 40, the water stored in the water storage tank is sucked into the absorption port 11 and raised along the water pipe 10, (13).

According to the present invention, a guide member 50 extending to the center of the absorption port 11 is provided on the inner circumferential surface of the absorption port 11 of the water pipe 10.

The guide member 50 is formed in a vertically long and thin plate shape and its outer end is integrally fixed to the inner circumferential surface of the absorption port 11 of the water pipe body 10. As shown in Figure 4, Is arranged to be slightly inclined in the rotational direction of the impeller (30).

The impeller 30 is composed of a head 31 coupled to the lower end of the rotary shaft 20 and a plurality of blades 32 provided on the circumferential surface of the head 31.

At this time, the head portion 31 is formed in a block shape having a largest diameter at the center and a small diameter at the upper and lower ends extending in the vertical direction, that is, a round diamond having rounded corners.

A diameter-enlarged portion 14 corresponding to the middle portion of the head portion 31 is formed at the lower end of the water pipe 10.

The drain pump thus constructed is provided with a guide member 50 extending to the center of the absorption port 11 on the inner peripheral surface of the absorption port 11 of the water distribution pipe body 10 so that the impeller 30 is rotated, When the water is sucked into the absorption port 11 of the guide member 50, the water is guided to rise along both front and rear surfaces of the guide member 50.

Therefore, water that is sucked into the absorption port 11 is prevented from rotating in the spiral direction by the impeller 30, and water is discharged upward, whereby water is rotated together with the impeller 30 to generate a vortex And minimizes the generation of noise and vibration due to the vortex generated as described above.

The head portion 31 of the impeller 30 extends in the vertical direction and has a central diameter of the largest diameter and a small diameter of the upper and lower ends. The lower end of the water pipe 10 has the head portion 31 The sectional area of the flow passage through which the water passes is maintained at a constant area without being narrowed, and the water discharge pipe body 10 The water flow rate of the water sucked into the absorption port 11 of the water pipe 10 is increased along the water pipe 10 without being rapidly shifted.

Therefore, after the flow path narrows due to the head portion 31 and the water sucked into the suction port 11 of the water pipe 10 passes through the peripheral portion of the head portion 31, the speed rapidly increases, The speed of the water sucked into the suction port 11 of the drain pipe body 10 is not rapidly changed, unlike the conventional drain pump in which the speed of the water is suddenly delayed and shock and noise are generated after passing through the water pipe 31, There is an advantage that shock and noise can be prevented from occurring due to rapid variation.

5 to 9 illustrate another embodiment according to the present invention in which the guide member 50 is laterally angularly coupled to the lower end of the drain pipe body 10. [

A hinge shaft 51 penetrating the inner and outer sides of the drain pipe 10 is provided at the lower end of the drain pipe body 10 and the outer end of the guide member 50 is located inside the hinge shaft 51 Lt; / RTI >

An angle adjusting unit 60 connected to the guide member 50 to adjust the angle of the guide member 50 and a control unit 60 for controlling the rotation speed of the rotating shaft 20 and the impeller 30, A vibration sensing means 80 provided in the water pipe 10 for measuring vibrations generated when the impeller 30 is driven, a speed sensor 70 for measuring the speed of rotation of the impeller 30, And a control means (90) for receiving signals from the vibration detecting means (80) and controlling the operation of the angle adjusting means (60) and the driving motor (40).

The angle adjusting means 60 uses a stepping motor which is fixed to the outer surface of the drain pipe body 10 and is connected to the outer end of the hinge shaft 51. The angle adjusting means 60 adjusts the angle of the hinge shaft 51, So that the angle of the guide member 50 can be adjusted as shown in FIG. 7 by rotating the shaft 51 in the forward and reverse directions.

The rotational speed measuring means 70 uses an RPM sensor coupled to the rotational shaft 20 and measuring the rotational speed of the rotational shaft 20 and the impeller 30.

The vibration sensing means 80 uses a vibration sensor provided on the outer surface of the water pipe 10 to sense the vibration generated when the impeller 30 is rotated to discharge the water.

Since the rotational speed measuring means 70 for measuring the flow rate of water and the vibration detecting means 80 for sensing the vibration have been developed and widely used, detailed description thereof will be omitted.

The control means 90 receives the signal of the rotational speed measuring means 70 to measure the rotational speed of the rotational shaft 20 and adjusts the rotational speed of the rotational shaft 20 such that the guide member 50 gradually increases By controlling the operation of the angle adjusting means 60 so as to be inclined largely in the direction of the guide member 50, the water collides with the guide member 50 to prevent noise or vibration from being generated.

That is, when the impeller 30 is driven to suck water in a state where the guide member 50 is positioned vertically as shown by a dotted line in FIG. 7, the impeller 30 is rotated in the spiral direction by the impeller 30 The water is raised along the guide member 50, so that no vortex is generated.

However, when the impeller 30 is rotated at a high speed in a state where the guide member 50 is vertically erected, the spiral-shaped water collides with the guide member, which is vertically positioned, resulting in great noise and vibration.

At this time, when the rotational speed of the rotating shaft 20 is increased, the control means 90 receives the signal of the rotational speed measuring means 70 and confirms the signal. When the rotational speed of the rotating shaft 20 is increased, The angle adjusting means 60 is controlled such that the guide member 50 is gradually inclined at a large angle as shown by a dotted line in FIG. 7, so that water collides with the guide member 50 to generate noise or vibration ≪ / RTI >

7, when the rotation speed of the rotation shaft 20 is detected to be slow, the control unit 90 controls the angle adjustment so that the guide member 50 gradually approaches a vertical position, (60).

The control means 90 receives the signal of the vibration sensing means 80 and transmits the foreign matter 1 to the guide member 50 when a vibration of a predetermined level or more is generated in the water pipe 10, The water flowed into the drain pipe body 10 flows back to the absorption port 11 of the drain pipe body 10 due to its own weight by stopping the driving motor 40 for a predetermined time, The foreign matter 1 caught by the member 50 is removed.

That is, when the impeller 30 is driven to discharge the water stored in the water storage tank, as shown in FIG. 8, when the foreign matter 1 such as the trash contained in the water is caught by the guide member 50, The foreign matter 1 is vibrated by the flow of the water discharged through the body 10, and very large noise and vibration are generated at this time.

Therefore, when an abnormally large vibration is sensed by the vibration sensing means 80, it means that the foreign matter 1 is caught in the guide member 50. [

At this time, when it is sensed that excessive vibration is generated in the vibration sensing means 80, the control means 90 stops the operation of the driving motor 40 for a previously input time, 40 is stopped, water is no longer discharged upward.

9, the water discharged upward through the water pipe 10 is backwardly flowed downward by its own weight so that the foreign matter 1 caught by the guide member 50 is discharged downward to be removed do.

The drain pump thus constructed prevents the water from swirling by adjusting the angle of the guide member 50 in accordance with the flow rate of water by using the rotational speed measuring means 70 and the angle adjusting means 60 At the same time, there is an advantage that noise and vibration can be prevented from being generated by colliding with the guide member (50).

When the foreign matter 1 is caught by the guide member 50 using the vibration sensing means 80 and the foreign matter 1 is effectively removed by stopping the driving motor 40, So that noise and vibration can be prevented from being continuously generated by the foreign matter 1 caught by the foreign matter 1.

11 to 14 illustrate a third embodiment according to the present invention in which an auxiliary impeller 100 rotatably coupled to an intermediate portion of the rotary shaft 20 and an auxiliary impeller 100 rotatably coupled to the rotary shaft 20, A clutch member 110 coupled to the auxiliary impeller 100 so as not to rotate and drivingly connecting the rotating shaft 20 and the auxiliary impeller 100 to the auxiliary impeller 100, And a buoyant body (120) for lifting up the clutch member (110) according to the flow of water rising along the drain pipe body (10) to be coupled to the auxiliary impeller (100).

The auxiliary impeller 100 includes a through hole 101a through which the rotary shaft 20 passes and a head portion 12b which is rotatably coupled to the intermediate portion of the rotary shaft 20 through a bearing 101b 101 and a plurality of blades 102 provided on the circumferential surface of the head portion 101. [

At this time, the lower end of the through hole 101a is formed with a coupling portion 101c having a larger diameter toward the lower side.

The clutch member 110 is formed in a rod shape extending in the up and down direction and has a through hole 111 through which the rotation shaft 20 passes so that it can be raised and lowered in the middle portion of the rotation shaft 20, Lt; / RTI >

11 and 12, a hexagonal sprue portion 21 is formed at the middle portion of the rotary shaft 20, and the through hole 111 of the clutch member 110 is formed in the middle portion of the rotary shaft 20, And a hexagon corresponding to the line portion 21.

As shown in FIG. 14, when the clutch member 110 is lifted up, the protruding portion 112 (see FIG. 14) is inserted into the engaging portion 101c at the upper end of the clutch member 110, Is inserted into the coupling portion 101c so that the rotary shaft 20 and the auxiliary impeller 100 are drivably connected to each other.

The buoyant body 120 is formed in a block shape of a synthetic resin material having a low specific gravity, and is engaged with the lower end of the clutch member 110.

The operation of the drain pump will be described as follows.

11, when the drive motor 40 is stopped and the rotation shaft 20 is not rotated, the clutch member 110 and the buoyant body 120 are lowered by their own weight, 20 and the auxiliary impeller 100 are separated from each other.

13, when the driving motor 40 is driven and the rotation shaft 20 and the impeller 30 start to rotate, the water in the water storage tank is moved upward through the water pipe 10 At this time, only the clutch member 110 and the buoyant body 120 rotate together with the rotary shaft 20, and the auxiliary impeller 100 is kept stationary.

14, when the level of the water raised through the water pipe 10 is further increased, the buoyant body 120 is lifted by buoyancy of the water, and the protrusion 112 of the clutch member 110 is lifted up Is inserted into the coupling portion 101c of the auxiliary impeller 100 so that the auxiliary impeller 100 and the rotary shaft 20 are drivably connected to each other.

Therefore, the auxiliary impeller 100 is rotated together with the rotating shaft 20 so that the water is rapidly raised through the volute body 10 and discharged to the discharge pipe 13.

When the driving motor 40 is stopped and the impeller 30 and the auxiliary impeller 100 are stopped, the water level in the water pipe 10 is lowered. At this time, as shown in FIG. 11, The coupling member 110 and the buoyant member 120 are lowered and the coupling between the rotary shaft 20 and the auxiliary impeller 100 is released.

The drain pump thus constructed is provided with a separate auxiliary impeller 100 on the rotary shaft 20 so that the impeller 30 and the auxiliary impeller 100 are rotated together when the rotary shaft 20 is rotated, There is an advantage that water can be sucked and discharged to the discharge pipe 13.

Particularly, the auxiliary impeller 100 is rotatably coupled to the intermediate portion of the rotary shaft 20 and is coupled to the rotary shaft 20 so as to be able to move up and down but not to rotate. When the auxiliary impeller 100 is coupled to the auxiliary impeller 100 A clutch member 110 coupled to the clutch member 110 for drivingly connecting the rotary shaft 20 and the auxiliary impeller 100 to each other in accordance with the flow of water ascending along the drain pipe body 10, When the clutch member 110 is lifted and lowered by the buoyant body 120, the auxiliary impeller 100 is lifted up and the buoyant body 120 is lifted up. Is driven to be connected to the rotary shaft (20).

Therefore, when the driving motor 40 is stopped and rotated to rotate the rotary shaft 20, only the impeller 30 is rotated, the auxiliary impeller 100 is kept stationary, and the impeller 30 is rotated The buoyant body 120 and the clutch member 110 are lifted up to connect the rotary shaft 20 and the auxiliary impeller 100 to each other The impeller 100 is rotated and the auxiliary impeller 100 is unnecessarily rotated in a state where the impeller 30 starts to rotate and water can not be lifted up to the auxiliary impeller 100, It is possible to prevent the auxiliary impeller 100 from being rotated and generate noises when the water starts to be discharged, so that the auxiliary impeller 100 is rotated to discharge the water more effectively That can be There are advantages.

10. Drain pipe body 20. Rotation shaft
30. Impeller 40. Drive motor
50. Guide member 60. Angle adjusting means
70. Rotational speed measuring means 80. Vibration sensing means
90. Control means 100. Auxiliary impeller
110. Clutch member 120. Buoyant body

Claims (5)

A drain pipe body 10 formed to extend vertically and having an absorption port 11 and a drain pipe 12 at the lower end and an upper end respectively and a rotary shaft 20 extending in the vertical direction inside the drain pipe body 10, An impeller 30 provided at a lower end of the rotary shaft 20 so as to be located in the lower side of the water pipe 10 and a drive motor 40 connected to the rotary shaft 20, In this case,
A guide member 50 extending to the center of the absorption port 11 is provided on the inner peripheral surface of the absorption port 11 of the water pipe 10,
The guide member 50 is formed in a vertically long and thin plate shape so that the water sucked into the absorption port 11 of the water pipe 10 is guided along both front and rear surfaces so that the water is guided to the water pipe 10, It is possible to prevent the vortex from being generated in the inside of the chamber,
An auxiliary impeller 100 rotatably coupled to a middle portion of the rotary shaft 20,
A clutch member 110 coupled to the rotary shaft 20 such that it can move up and down but not rotate and is coupled to the auxiliary impeller 100 when driven up to drively connect the rotary shaft 20 and the auxiliary impeller 100, ,
And a buoyant body 120 coupled to the clutch member 110 and adapted to be coupled to the auxiliary impeller 100 by lifting the clutch member 110 according to the flow of water raised along the drain pipe body 10 And a drain pump connected to the drain pump.
The method according to claim 1,
The impeller (30)
A head portion 31 coupled to the lower end of the rotary shaft 20,
And a plurality of blades (32) provided on a circumferential surface of the head part (31)
The head portion 31 is formed in a block shape extending in the vertical direction and having the largest diameter at the center portion and a small diameter at the upper and lower ends,
Wherein a diameter-enlarged portion (14) corresponding to an intermediate portion of the head portion (31) is formed at a lower end portion of the water pipe body (10).
The method according to claim 1,
The guide member 50 is connected to the lower end of the water pipe 10 so as to be laterally angularly adjustable,
An angle adjusting means 60 connected to the guide member 50 to adjust the angle of the guide member 50,
A rotation speed measuring means 70 provided on the rotary shaft 20 for measuring a rotation speed of the rotary shaft 20 and the impeller 30,
A control means 90 for receiving the signal of the rotational speed measuring means 70 and controlling the angle adjusting means 60 according to the rotational speed of the impeller 30 to adjust the angle of the guide member 50 Further comprising a drain pump.
The method according to claim 1 or 3,
Further comprising a vibration sensing means (80) provided in the water pipe (10) for measuring a vibration generated when the impeller (30) is driven,
The control means 90 determines that the foreign matter 1 is caught in the guide member 50 and stops the drive motor 40 at a preset time The water introduced into the drain pipe body 10 flows backward to the absorption port 11 of the drain pipe body 10 by its own weight to remove the foreign matter 1 caught by the guide member 50. [ Drainage pump. delete
KR1020160080460A 2016-06-27 2016-06-27 drainage pump KR101664269B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102208972B1 (en) 2020-10-20 2021-01-28 주식회사 남일 impeller structure
KR102211006B1 (en) * 2020-07-23 2021-02-01 선용재 vertical drainage pump
KR102493599B1 (en) * 2022-04-15 2023-01-31 (주)오비스 Pump adopting dimple

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0138047B1 (en) * 1994-01-14 1998-07-01 윤종용 Control method and unit changing of rpm in fan motor
KR101524006B1 (en) 2014-09-30 2015-05-29 (주)지천펌프공업 A pump having been improved suction performance
KR20160064314A (en) * 2014-11-27 2016-06-08 (주)금강이엔지 Gate pump apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0138047B1 (en) * 1994-01-14 1998-07-01 윤종용 Control method and unit changing of rpm in fan motor
KR101524006B1 (en) 2014-09-30 2015-05-29 (주)지천펌프공업 A pump having been improved suction performance
KR20160064314A (en) * 2014-11-27 2016-06-08 (주)금강이엔지 Gate pump apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102211006B1 (en) * 2020-07-23 2021-02-01 선용재 vertical drainage pump
KR102208972B1 (en) 2020-10-20 2021-01-28 주식회사 남일 impeller structure
KR102493599B1 (en) * 2022-04-15 2023-01-31 (주)오비스 Pump adopting dimple

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