KR101642685B1 - Leak proof structure of detachable water pump - Google Patents

Leak proof structure of detachable water pump Download PDF

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Publication number
KR101642685B1
KR101642685B1 KR1020160012612A KR20160012612A KR101642685B1 KR 101642685 B1 KR101642685 B1 KR 101642685B1 KR 1020160012612 A KR1020160012612 A KR 1020160012612A KR 20160012612 A KR20160012612 A KR 20160012612A KR 101642685 B1 KR101642685 B1 KR 101642685B1
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KR
South Korea
Prior art keywords
pump
bracket
unit
water
discharge
Prior art date
Application number
KR1020160012612A
Other languages
Korean (ko)
Inventor
김윤완
Original Assignee
신신이앤지(주)
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Priority to KR1020160012612A priority Critical patent/KR101642685B1/en
Application granted granted Critical
Publication of KR101642685B1 publication Critical patent/KR101642685B1/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
    • F04D29/08—Sealings
    • F04D29/086—Sealings 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
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces

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

Abstract

The present invention relates to a leakage prevention structure for a detachable water pump, which flexibly operates. According to the present invention, the leakage prevention structure for a detachable water pump includes: a discharge unit fixed in the water; a pump unit attached to and detached from the discharge unit; a bracket unit including a connection bracket connected to one end of the pump unit and a guide bracket guiding the pump unit to be detached by being extended from an upper end of the connection bracket; and a water sealing unit installed on the inner surface of the connection bracket to slide and separated from the discharge unit when the pump unit does not operate, wherein the water sealing unit slides toward the discharge unit by discharge water when the pump unit operates. The leakage prevention structure prevents the water sealing unit from being damaged or being worn out when the pump is attached or detached, thereby improving durability of the water sealing unit. The leakage prevention structure for a detachable water pump also can efficiently prevent a leakage and can reduce a loss of energy.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a leak-

The present invention relates to a water leakage prevention structure of a detachable submersible pump, and more particularly, to a water leakage prevention structure of a detachable submersible pump that operates elastically.

An underwater pump is a pump that operates in water (in water). In general, a pump and an electric motor for driving the pump are integrally formed, and the pump is installed in the water and has a function of pumping water. These submersible pumps are divided into various types depending on the application, such as heart rate, water pressure, and water supply. Such a submersible pump has been generally used by being integrally connected to a fixed pipe pipe. However, due to problems such as maintenance, a structure in which only a submerged pump is detachable has recently been developed, and a detachable submersible pump capable of such detachment has been used .

Such a conventional detachable submersible pump is disclosed in Patent Document 1, and Fig. 1 shows a state in which a conventional detachable submersible pump is installed. 1, the conventional detachable submersible pump includes a discharge elbow 1 fixed in water, a pump 2 connected to the discharge elbow 1, a pump 2 extending upward from the discharge elbow 1 and extending toward the water surface A guide hook 4 and a slide bracket 5 fastened to the pump 2 are attached to the upper end of the discharge elbow 1 while moving along the guide bar 3 and the guide bar 3, A sealing member 6 provided inside the slide bracket 5, a spring 7 for urging the sealing member 6 toward the discharge elbow 1, a spring 7 provided on the slide bracket 5, And a stopper (8) for preventing the sealing member (6) from coming off.

Such a conventional detachable submersible pump has a sealing member 6 with an elastic force by the spring 7 to closely contact (pressurize) the engagement portion between the slide bracket 5 and the discharge elbow 1 to improve the leak prevention effect. However, in the conventional detachable submersible pump, when the pump 2 is separated from the discharge elbow 1, the sealing member 6 protrudes to the outside of the slide bracket 5. This is because the spring 7 presses the sealing member 6 to the outside of the slide bracket 5. The stopper 8 restricts the flow section of the sealing member 6 to some extent but the stopper 8 prevents the sealing member 6 from being detached by the elasticity of the spring 7, Can not be prevented from protruding to the outside of the slide bracket 5.

The conventional detachable submersible pump is configured such that the sealing member 6 protruding to the outside of the slide bracket 5 rubs against the discharge elbow 1 every time the pump 2 is detachably attached to the discharge elbow 1 And there is a problem that the sealing member 6 is easily worn or broken due to such friction and the durability is deteriorated.

KR 10-0728865 B1 (June 28, 2007)

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to improve the waterproofing effect and to prevent the sealing member from being worn and damaged when the pump is detached and attached, And to provide a water leakage prevention structure of a detachable submersible pump which can be reduced.

According to an aspect of the present invention, there is provided a water leakage prevention structure for a submersible pump, comprising: a discharge unit fixedly installed in water; A pump unit detachably attached to the discharge unit; A bracket portion including a communication bracket coupled to one end of the pump portion and a guide bracket extending from an upper end of the communication bracket and guiding the pump portion to be detached; And a watertight portion slidably mounted on an inner surface of the communication bracket and spaced apart from the discharge portion when the pump portion is not operated and slid toward the discharge portion by discharge water when the pump portion is operated As a technical feature.

The leakage preventing structure of the detachable submersible pump according to the present invention prevents the watertight portion (sealing member) from being abraded and broken when the pump is detached and attached, thereby improving the durability of the watertight portion (sealing member) Energy loss can be reduced.

Fig. 1 is a diagram showing a state of installation of a conventional detachable submersible pump
Fig. 2 is a side view of a water leakage prevention structure of a detachable submersible pump according to the present invention
FIG. 3 is an exploded perspective view of a water leakage preventing structure of a detachable submersible pump according to the present invention.
4 is an exploded perspective view of the watertight portion according to the present invention.
5 to 8 are partial enlarged cross-sectional views of a leakage prevention structure of a detachable submersible pump according to the present invention
9 is a view showing another embodiment of the water leakage preventing structure of the detachable submersible pump according to the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a water leakage prevention structure of a detachable submersible pump according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a side view of a leakage preventing structure of a detachable submersible pump according to the present invention, and FIG. 3 is an exploded perspective view of a leakage preventing structure of a detachable submersible pump according to the present invention. 2 and 3, the water leakage prevention structure of the detachable submersible pump according to the present invention includes a discharge unit 10 fixedly installed in water; A pump unit 20 detachably attached to the discharge unit 10; A bracket portion 30 coupled to the pump portion 20; When the pump unit 20 is not operated, the pump unit 20 is separated from the discharge unit 10. When the pump unit 20 is operated, the discharge unit 10 And a watertight portion 40 which slides in the direction of the watertightness.

The discharge portion 10 is a pipe for discharging (discharging) discharged water generated as the pump portion 20 operates, and is fixed in water. The discharge portion 10 is basically formed into a pipe shape as shown in FIG. 2, and may be formed in an elbow shape according to the installation position and usage.

The pump unit 20 is detachably attached to the discharge unit 10 as a component including a pump, and discharge water is generated as the pump unit 20 operates. The pump unit 20 is installed in the water. An appropriate underwater pump can be selected and installed according to the position and the purpose of the pump unit 20 installed.

The bracket portion 30 is a component that is fastened to the pump portion 20 and guides the pump portion 20 to be detached to and from the discharge portion 10. The bracket portion 30 includes a ring- And a guide bracket 32 extending from the upper end of the communication bracket 31 and guiding the pump unit 20 to be detached and attached. At this time, a guide bar is formed in the discharge part 10, and the pump part 20 is slid up and down along the guide bar. Referring to FIG. 2, it can be seen that the pump unit 20 to which the bracket unit 30 is fastened is separated from the discharge unit 10 and lifted upward.

FIG. 4 is an exploded perspective view of the watertight unit according to the present invention, and FIGS. 5 to 8 are enlarged partial sectional views of a watertight prevention structure of a detachable submersible pump according to the present invention. FIG. 5 shows a state in which the pump unit 20 is not operating, and FIG. 6 shows a state in which the pump unit 20 operates to generate a water pressure to the right.

4 to 6, the watertight portion 40 is a component coupled to the inner surface of the bracket portion 30. When the pump portion 20 is not operated, the watertight portion 40 is separated from the discharge portion 10, And slides in the direction of the discharge portion 10 by the water pressure of the discharge water when the discharge portion 20 operates. The watertight portion 40 is not projected to the outside of the bracket portion 30 because the watertight portion 40 is spaced apart from the discharge portion 10 when the watertight portion 40 is normally operated (when the pump portion 20 does not operate) Reference). Therefore, when the pump unit 20 is separated from or coupled to the discharge unit 10, friction between the watertight unit 40 and other components such as the pump unit 20 is prevented. The watertight portion 40 can be prevented from being worn or damaged due to the occurrence of such friction, so that the durability of the watertight portion 40 can be improved.

The watertight portion 40 is slid in the direction of the discharge portion 10 by the water pressure of the discharge water when the pump portion 20 is operated (the pump portion 20 operates only in a state of being coupled to the discharge portion 10) It is possible to prevent leakage at the joint portion between the discharge portion 10 and the bracket portion 30 when the pump portion 20 is operated.

The waterproof structure of the detachable submersible pump according to the present invention is such that the watertight portion 40 is separated from the discharge portion 10 when the pump portion 20 is not operated The watertight portion 40 prevents the watertight portion 40 from being discharged when the pump portion 20 is operated and prevents the watertight portion 40 from being discharged when the pump portion 20 is operated. It is possible to effectively prevent water leakage by sliding in the direction of the part 10 and completely coming into close contact with the discharge part 10. Hereinafter, the configuration of the watertight portion 40 will be described in detail.

5, when the groove 31a is formed on the inner surface of the communication bracket 31, the watertight portion 40 is fitted into the groove 31a and slides in the space inside the groove 31a, A packing member 41 that slides in the direction of the discharge unit 10 when the storage unit 20 is operated, an elastic member 42 that is provided in the groove 31a and presses the packing member 41 in the direction of the discharge unit 10, And a coupling member.

A groove 31a is formed so that the ring-shaped packing member 41 fastened to the inner side surface of the communication bracket 31 is fitted and mated. As shown in FIG. 5, the groove 31a is formed along the inner side surface of the communication bracket 31, A groove 31a in the form of a? At this time, the packing 31 is fastened to the groove 31a so that the packing member 41 is slid. Therefore, the packing member 41 is slid only in the space of the groove 31a.

The packing member 41 is preferably a ring-shaped component which is fastened (fitted) to a groove 31a formed on the inner side of the communication bracket 31 and is preferably made of a material such as rubber that has a good leakproof effect . Such a packing member 41 is spaced from the discharge portion 10 by the force that the elastic member 42 presses as shown in Fig. 5 when the pump portion 20 is not operated. When the pump unit 20 operates, the water pressure acts on the right side as shown in FIG. 6, so that the packing member 41 is slid to the right by the water pressure so that the packing member 41 is discharged to the discharge unit 10).

When the packing member 41 is slid in the space of the groove 31a but is brought into close contact with the left side (with reference to FIG. 5), the packing member 41 does not protrude to the outside (right side) of the communication bracket 31, (Assuming that there is no pump section 10 but does not actually protrude due to the presence of the pump section 10) so as to protrude to the outside (right side) of the communication bracket 31 when sliding to the right, It is preferable that the packing member 41 is formed in a 'C' shape at the side thereof so that the packing member 41 protrudes to the outside (right side) of the packing member 41.

This packing member 41 needs an area other than a component (direction) horizontal to the discharged water in order to slide by the water pressure of the discharged water. That is, the packing member 41 must be influenced by the force of the discharged water generated when the pump unit 20 operates. As shown in FIG. 5, the inner surface of the packing member 41 has a tapered shape It can be influenced by the force of the discharged water. As a result, the packing member 41 is slid in the moving direction of the discharged water (rightward in Fig. 6) by the force of the discharged water (water pressure).

In addition, the packing member 41 may be formed with the inner protrusion 41a along the inner side surface of the packing member 41 as shown in Fig. 7 in order to better receive the force of the discharged water. In addition, the packing member 41 may be formed to have a large thickness so that the packing member 41 protrudes from the inner surface of the communication bracket 31 by a predetermined height as shown in FIG.

The elastic member 42 is a component for pressing the packing member 41 in the direction of the discharge unit 10 and includes an elastic member 42 such as a spring inserted into the groove 31a Lt; / RTI >

The engaging member 43 is a component for engaging the communication bracket 31 and the elastic member 42. The engaging member 43 such as a bolt is inserted into the communication bracket 31 and the groove 31a, And the packing member 41 in this order. More specifically, a locking protrusion 31b is formed on the outer surface of the communication bracket 31 and an outer protrusion 41b is formed along the outer circumference of the packing member 41. At this time, the locking protrusion 31b, the groove 31a The engaging member 43 is fastened to the communication bracket 31 so as to penetrate through the outer protrusion 41b and the outer protrusion 41b in order and the engaging member 43 is fastened to the engaging member 43 so as to be positioned between the engaging protrusion 31b and the outer protrusion 41b. The elastic member 42 can be engaged.

The watertight portion 40 according to the present invention has a watertight bracket 40 in addition to the packing member 41, the elastic member 42, and the engagement member 43, according to another embodiment of the leakage preventing structure of the detachable submersible pump according to the present invention. (44). ≪ / RTI >

The watertight bracket 44 is a component detachably fastened to the inner side surface of the communication bracket 31. The watertight bracket 44 is fastened to the inner side surface of the communication bracket 31 without forming the groove 31a. At this time, a groove is formed along the inner circumference of the water-tight bracket 44 and the packing member 41 is fitted to the groove of the water-tight bracket 44.

That is, in the water leakage preventing structure of the detachable submersible pump according to the present invention, the watertight portion 40 can be easily separated or fastened to the communication bracket 31 by the watertight bracket 44 in the form of FIG. An impeller may be provided on the inner outlet side of the communication bracket 31 as occasion demands, and the watertight portion 40 of the communication bracket 31 may be worn by the impeller. However, since the watertight portion 40 can be easily separated or fastened to the communication bracket 31 by the watertight bracket 44, the watertight structure of the detachable submersible pump according to the present invention can prevent the leakage of the watertight portion 40 from the inner outlet side of the communication bracket 31 The watertight portion 40 can be easily installed and replaced in the communication bracket 31 even if it is worn by the installed impeller.

According to the structure of the present invention, the waterproof portion 40 does not protrude to the outside of the bracket portion 30 when the pump portion 20 is not operated, so that the pump portion 20 The watertight portion 40 is slid in the direction of the discharge portion 10 only when the pump portion 20 is operated to prevent the watertight portion 40 from friction with the discharge portion 10, it is possible to effectively prevent water leakage.

10: Discharging section 20:
30: Bracket part 31:
31a: groove 31b:
32: guide bracket 40: watertight portion
41: packing member 41a: inner projection
41b: outer protrusion 42: elastic member
43: coupling member 44: watertight bracket

Claims (8)

A discharge unit 10 fixedly installed in water;
A pump unit 20 detachably attached to the discharge unit 10;
A communication bracket 31 which is fastened to one end of the pump unit 20 and has a groove 31a formed on an inner side surface thereof and a locking step 31b formed on an outer side of the communication bracket 31; And a guide bracket (32) formed to guide the pump unit (20) to be detached and attached. And
And a watertight portion (40) provided on an inner surface of the communication bracket (31)
The watertight portion (40)
A packing member 41 fitted into the groove 31a and sliding inside the groove 31a and having an outer protrusion 41b formed along the outer circumference thereof;
An engaging member 43 for engaging the connecting bracket 31 and the packing member 41 through the engaging protrusion 31b, the groove 31a and the outer protrusion 41b in order,
An elastic member 42 provided on the coupling member 43 and positioned between the locking protrusion 31b and the outer protrusion 41b to press the packing member 41 toward the pump unit 20, And,
The packing member 41 is spaced from the discharge unit 10 when the pump unit 20 is not operated and is slid toward the discharge unit 10 by the discharge water when the pump unit 20 is operated, And the water leakage prevention structure of the detachable underwater pump.
A discharge unit 10 fixedly installed in water;
A pump unit 20 detachably attached to the discharge unit 10;
And a guide bracket 32 extending from the upper end of the communication bracket 31 and guiding the pump unit 20 to be detached and attached to the bracket 31, (30); And
And a watertight portion (40) provided on an inner surface of the communication bracket (31)
The watertight portion (40)
A watertight bracket 44 coupled to an inner surface of the communication bracket 31 and having grooves formed on an inner surface thereof and having a locking protrusion formed on an outer surface thereof;
A packing member (41) which is fitted into the groove and slides inside the groove and has an outer protrusion (41b) formed along the outer circumference;
An engaging member 43 which penetrates the engaging jaw, the groove and the outer protrusion 41b in order and engages the watertight bracket 44 with the packing member 41,
And an elastic member 42 installed on the engaging member 43 and positioned between the engaging jaw and the outer protrusion 41b to press the packing member 41 toward the pump unit 20 Respectively,
The packing member 41 is spaced from the discharge unit 10 when the pump unit 20 is not operated and is slid toward the discharge unit 10 by the discharge water when the pump unit 20 is operated, And the water leakage prevention structure of the detachable underwater pump.
The method according to claim 1 or 2,
And the inner surface of the packing member (41) is formed to be tapered.
The method according to claim 1 or 2,
And an inner protrusion (41a) is formed along an inner circumferential surface of the packing member (41).
The method according to claim 1 or 2,
Wherein the packing member (41) is installed so as to protrude from the inner side surface of the communication bracket (31).
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KR1020160012612A 2016-02-02 2016-02-02 Leak proof structure of detachable water pump KR101642685B1 (en)

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KR1020160012612A KR101642685B1 (en) 2016-02-02 2016-02-02 Leak proof structure of detachable water pump

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109751266A (en) * 2018-12-10 2019-05-14 贵州电网有限责任公司 A kind of substation's fired power generating unit desulphurization system oxidation fan
KR102212403B1 (en) * 2020-04-13 2021-02-04 손영삼 Leak prevention possible discharge connector for underwater pump

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08312575A (en) * 1995-05-16 1996-11-26 Kawamoto Seisakusho:Kk Attachable/detachable underwater pump
KR100728865B1 (en) 2006-09-30 2007-06-19 (주)대진정공 Auotomatic deassemble for underwater pump
JP2011149363A (en) * 2010-01-22 2011-08-04 Nippon Pillar Packing Co Ltd Seal for submerged pump

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08312575A (en) * 1995-05-16 1996-11-26 Kawamoto Seisakusho:Kk Attachable/detachable underwater pump
KR100728865B1 (en) 2006-09-30 2007-06-19 (주)대진정공 Auotomatic deassemble for underwater pump
JP2011149363A (en) * 2010-01-22 2011-08-04 Nippon Pillar Packing Co Ltd Seal for submerged pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109751266A (en) * 2018-12-10 2019-05-14 贵州电网有限责任公司 A kind of substation's fired power generating unit desulphurization system oxidation fan
KR102212403B1 (en) * 2020-04-13 2021-02-04 손영삼 Leak prevention possible discharge connector for underwater pump

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