KR100915890B1 - Automatic pump - Google Patents

Automatic pump Download PDF

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Publication number
KR100915890B1
KR100915890B1 KR1020080071134A KR20080071134A KR100915890B1 KR 100915890 B1 KR100915890 B1 KR 100915890B1 KR 1020080071134 A KR1020080071134 A KR 1020080071134A KR 20080071134 A KR20080071134 A KR 20080071134A KR 100915890 B1 KR100915890 B1 KR 100915890B1
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KR
South Korea
Prior art keywords
casing
open
face
impeller
liner
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Application number
KR1020080071134A
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Korean (ko)
Inventor
김철
Original Assignee
윌로펌프 주식회사
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Priority to KR1020080071134A priority Critical patent/KR100915890B1/en
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Publication of KR100915890B1 publication Critical patent/KR100915890B1/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
    • 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
    • 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
    • F04D29/02—Selection of particular materials
    • F04D29/026—Selection of particular materials 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
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/12—Shaft sealings using sealing-rings
    • F04D29/126—Shaft sealings using sealing-rings 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/406—Casings; Connections of working fluid 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2210/00—Working fluids
    • F05D2210/10—Kind or type
    • F05D2210/11—Kind or type liquid, i.e. incompressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/60—Fluid transfer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/40—Organic materials
    • F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or 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

An automatic pump is provided to prevent a casing from being bent and to prevent fluid from being leaked out through the contiguous area of a liner and the casing. An automatic pump comprises an impeller part(100), a motor(200), and an O-ring(320). The impeller part comprises a casing(110) and an impeller(130) of the plastics. The one side of the casing is opened and the other side is shut tightly. The cross section in where the O-ring is mounted is formed in the inner circumference of the opened one end of the casing. The motor comprises a housing(210), a liner(220), and a rotary shaft(230). The opened one end side of the housing is connected with the opened one end side of the casing. An edge part of the liner is contacted with opened one end side of the casing. The rotary shaft is installed at the housing and the rotary shaft rotates the impeller. The O-ring is interposed between the casing and the liner.

Description

자동펌프 {AUTOMATIC PUMP}Automatic Pump {AUTOMATIC PUMP}

본 발명은 자동펌프에 관한 것이다.The present invention relates to an automatic pump.

펌프란 모터의 작용으로 유체를 수송하는 장치이고, 자동펌프란 유입되어 토출되는 유체의 흐름을 자동으로 제어하는 기기이다.A pump is a device that transports fluid by the action of a motor, and an automatic pump is a device that automatically controls the flow of fluid flowing in and out.

일반적으로, 자동펌프는 상호 결합된 임펠러부와 모터부를 가진다.In general, the automatic pump has an impeller portion and a motor portion coupled to each other.

상기 임펠러부는 일면이 개방되며 밀폐된 타면측에는 유입관과 토출관이 연통 설치된 케이싱과 상기 케이싱의 내부에 설치된 임펠러를 가지고, 상기 모터부는 일면이 개방된 하우징과 상기 하우징의 내부에 회전가능하게 설치된 회전축과 상기 하우징의 개방된 일면에 결합된 라이너를 가진다.The impeller portion has one side open and the other side of the sealed side has a casing in which the inlet pipe and the discharge tube are in communication with the impeller installed in the casing, the motor portion is rotatably installed inside the housing and the housing is open on one side And a liner coupled to an open side of the housing.

상기 케이싱의 개방된 일단면(一端面)과 상기 하우징의 개방된 일단면(一端面)은 체결부재에 의하여 상호 접촉 결합된다. 이때, 상기 케이싱의 개방된 일단면(一端面)과 상기 라이너의 테두리부도 접촉한다.An open end face of the casing and an open end face of the housing are brought into contact with each other by a fastening member. At this time, the open end surface of the casing is also in contact with the edge portion of the liner.

그리고, 상기 케이싱과 상기 라이너 사이에는 오링이 개재되어, 상기 케이싱과 상기 라이너의 접촉 부위를 실링한다.An O-ring is interposed between the casing and the liner to seal a contact portion between the casing and the liner.

상기와 같은 종래의 자동펌프는 상기 케이싱이 금속제로 마련된다. 이로인 해, 상기 케이싱이 부식되고, 상기 케이싱의 부식에 의한 부산물이 상기 케이싱의 내부에 설치된 밸브의 동작을 간섭하여, 제품의 신뢰성이 저하되는 단점이 있다. 또한, 상기 케이싱은 주물로 제조되는데, 주물의 특성상, 표면의 조도가 나쁘다. 이로인해, 마찰에 의한 유체손실 발생하므로 성능이 저하되는 단점이 있다. 또한, 주물로 제조된 상기 케이싱은 성형 후 추가로 표면을 가공하여야 하므로 번거롭고, 무거우며, 미관상 흉한 단점이 있다.In the conventional automatic pump as described above, the casing is made of metal. As a result, the casing is corroded, and by-products caused by the corrosion of the casing interfere with the operation of the valve installed inside the casing, thereby reducing the reliability of the product. In addition, the casing is made of a casting, due to the characteristics of the casting, the surface roughness is bad. Due to this, there is a disadvantage that the performance is reduced because the fluid loss caused by friction. In addition, the casing made of casting has the disadvantage that it is cumbersome, heavy, and aesthetically ugly because the surface must be further processed after molding.

상기와 같은 금속제의 상기 케이싱으로 인한 문제점을 해소하기 위하여 합성수지제로 케이싱을 형성하였으나, 합성수지제의 상기 케이싱은 강도가 약하여 상기 하우징과 체결되는 테두리부측이 벤딩된다. 그러면, 상기 케이싱과 상기 라이너의 접촉 부위를 통하여 유체가 누설되므로, 제품의 신뢰성이 저하되는 단점이 있다.In order to solve the problems caused by the metal casing as described above, the casing is formed of a synthetic resin, but the casing of the synthetic resin is weak in strength, and the edge portion which is coupled to the housing is bent. Then, since the fluid leaks through the contact portion of the casing and the liner, there is a disadvantage that the reliability of the product is lowered.

본 발명은 상기와 같은 종래 기술의 문제점을 해결하기 위하여 안출된 것으로, 본 발명의 목적은 하우징과 체결되는 케이싱 부위가 벤딩되는 것을 방지하여 제품의 신뢰성을 향상시킬 수 있는 자동펌프를 제공함에 있다.The present invention has been made to solve the problems of the prior art as described above, the object of the present invention is to provide an automatic pump that can improve the reliability of the product by preventing the casing portion is fastened to the housing.

상기 목적을 달성하기 위한 본 발명에 따른 자동펌프는, 일면은 개방되고 타면은 밀폐되며 유입관 및 토출관이 연통 형성된 합성수지제의 케이싱, 상기 케이싱의 내부에 회전가능하게 설치된 임펠러를 가지는 임펠러부; 개방된 일단면(一端面)이 상기 케이싱의 개방된 일단면에 접촉 결합되는 하우징, 상기 하우징의 개방된 일단면측에 결합되며 테두리부측이 상기 케이싱의 개방된 일단면과 접촉하는 라이너, 상기 하우징에 설치되어 상기 임펠러를 회전시키는 회전축을 가지는 모터; 상기 케이싱과 상기 라이너 사이에 개재된 오링을 구비하는 자동펌프에 있어서,Automatic pump according to the present invention for achieving the above object, the one side is open and the other side is sealed, the inlet pipe and discharge pipe casing made of synthetic resin formed in communication, the impeller portion having a rotating impeller installed inside the casing; A housing in which one open end face is brought into contact with an open one end face of the casing, a liner coupled to an open end face side of the housing and an edge portion in contact with an open one end face of the casing; A motor having a rotating shaft installed to rotate the impeller; In the automatic pump having an O-ring interposed between the casing and the liner,

상기 케이싱의 개방된 일단면의 내주면측에는 상기 오링이 안치되는 단면(段面)이 형성되며,On the inner circumferential surface side of the open one end surface of the casing is formed a cross section in which the O-ring is placed,

상기 단면과 상기 케이싱의 개방된 일단면의 외주면 사이에는 상기 케이싱의 개방된 일단면을 따라 링형상의 응력 보강용 홈이 형성된다.A ring-shaped stress reinforcing groove is formed along the open end face of the casing between the end face and the outer circumferential face of the open end face of the casing.

본 발명에 따른 자동펌프는 합성수지제의 케이싱의 테두리부측에 형성된 홈으로 인하여 케이싱이 벤딩되지 않는다. 따라서, 케이싱과 라이너의 접촉부위를 통하여 유체가 누설되지 않으므로, 제품의 신뢰성이 향상된다.In the automatic pump according to the present invention, the casing is not bent due to the groove formed on the edge portion of the casing made of synthetic resin. Accordingly, fluid does not leak through the contact portion between the casing and the liner, thereby improving the reliability of the product.

이하, 첨부된 도면을 참조하여 본 발명의 일 실시예에 따른 자동펌프를 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail an automatic pump according to an embodiment of the present invention.

도 1은 본 발명의 일 실시예에 따른 자동펌프의 외관을 보인 정면도이고, 도 2는 도 1의 "A-A"선 단면도이며, 도 3은 케이싱을 도 2의 "P"방향에서 본 정단면도이다.Figure 1 is a front view showing the appearance of the automatic pump according to an embodiment of the present invention, Figure 2 is a sectional view taken along the line "AA" of Figure 1, Figure 3 is a front sectional view of the casing in the "P" direction of FIG. .

도시된 바와 같이, 본 실시예에 따른 자동펌프는 상호 결합된 임펠러부(100)과 모터부(200)를 가진다.As shown, the automatic pump according to the present embodiment has an impeller portion 100 and a motor portion 200 coupled to each other.

임펠러부(100)는 대략 원통형상으로 형성되며, 일면은 개방되고 타면은 밀폐 된 케이싱(110)을 가진다. 케이싱(110)의 타면 중앙부측에는 수원(水源)측과 연통된 유입관(121)이 연통 설치되고, 측면측에는 사용처와 연통된 토출관(125)이 연통 설치된다. 이때, 케이싱(110)의 측면에는 케이싱(110)의 내부와 연통된 유로가 형성되는데, 상기 유로와 토출관(125)이 연통된다.Impeller portion 100 is formed in a substantially cylindrical shape, one side is open and the other side has a closed casing (110). On the other side of the casing 110, the inlet pipe 121 communicating with the water source side is installed on the central portion side, and the discharge pipe 125 communicating with the place of use is installed on the side surface. At this time, the side of the casing 110 is formed with a flow path communicating with the inside of the casing 110, the flow path and the discharge tube 125 is in communication.

토출관(125)의 상기 유로에는 상기 유로와 토출관(125)을 연통 및 차단시키는 밸브(140)가 설치된다.The flow path of the discharge pipe 125 is provided with a valve 140 for communicating and blocking the flow path and the discharge pipe 125.

그리고, 케이싱(110)의 내부에는 모터부(200)에 의하여 회전하는 임펠러(130)가 설치된다. 임펠러(130)는 유입관(121)을 통하여 케이싱(110)의 내부로 유입된 유체를 강제로 토출관(125)측으로 토출시킨다.In addition, an impeller 130 rotating by the motor unit 200 is installed in the casing 110. The impeller 130 forcibly discharges the fluid introduced into the casing 110 through the inflow pipe 121 to the discharge pipe 125.

모터부(200)는 대략 원통형상으로 형성되며, 일면이 개방된 하우징(210)을 가진다. 하우징(210)의 개방된 일단면(一端面)에는 라이너(220)의 테두리부측 결합되고, 내부에는 회전축(230)이 설치된다.The motor unit 200 is formed in a substantially cylindrical shape and has a housing 210 having one surface open. The open end surface of the housing 210 is coupled to the edge portion of the liner 220, and a rotation shaft 230 is installed therein.

회전축(230)은 회전자(미도시) 및 고정자(미도시)의 작용에 의하여 회전하는 상기 회전자와 일체로 회전하며, 일단부측은 하우징(210)의 개방된 일면 외측으로 노출되어 임펠러(130)에 연결된다. 그러므로, 임펠러(130)는 회전축(230)에 의하여 회전한다.The rotary shaft 230 rotates integrally with the rotor rotating by the action of the rotor (not shown) and the stator (not shown), one end side is exposed to the outside of the open one surface of the housing 210 impeller 130 ) Therefore, the impeller 130 rotates by the rotation shaft 230.

케이싱(110)의 개방된 일단면(一端面)과 하우징(210)의 개방된 일단면(一端面)은 체결부재(310)에 의하여 상호 접촉 결합된다. 그리고, 라이너(220)의 테두리부측은 케이싱(110)의 개방된 일단면(一端面)에 접촉되는데, 케이싱(110)과 라이너(220)의 접촉 부위를 통하여 유체가 누설되는 것을 방지하기 위하여 케이싱(110) 의 개방된 일단면과 라이너(220)의 테두리부측 사이에는 오링(320)이 개재된다.The open end face of the casing 110 and the open end face of the housing 210 are contacted to each other by the fastening member 310. And, the edge portion of the liner 220 is in contact with the open end surface of the casing 110, the casing to prevent the fluid from leaking through the contact portion of the casing 110 and the liner 220. The O-ring 320 is interposed between the open end surface of the 110 and the edge portion side of the liner 220.

상세히 설명하면, 케이싱(110)의 개방된 일단면(一端面)의 내주면측에는 타면측으로 함몰된 단면(段面)(112)이 형성된다. 단면(112)은 케이싱(110)의 개방된 일단면을 따라 형성되어 링형상을 이루며, 오링(320)이 삽입 안치된다.In detail, the end surface 112 recessed to the other surface side is formed in the inner peripheral surface side of the open one end surface of the casing 110. End surface 112 is formed along the open end surface of the casing 110 to form a ring shape, the O-ring 320 is inserted and placed.

오링(320)을 단면(112)에 삽입 안치한 상태에서, 케이싱(110)의 개방된 일단면(一端面)과 하우징(210)의 개방된 일단면(一端面)을 접촉시켜 체결부재(310)로 체결하면, 케이싱(110)과 하우징(210)이 결합됨과 동시에 케이싱(110)과 라이너(220)의 접촉 부위가 실링된다.In the state where the O-ring 320 is inserted into the end surface 112, the fastening member 310 is brought into contact with the open end surface of the casing 110 and the open end surface of the housing 210. When fastened to, the casing 110 and the housing 210 are coupled and at the same time the contact portion of the casing 110 and the liner 220 is sealed.

본 실시예에 따른 케이싱(110)은 M-PPO(Modified Polyphenylene Oxide) 등과 같은 합성수지제로 제조되며, 사출 성형한다.The casing 110 according to the present embodiment is made of a synthetic resin such as M-PPO (Modified Polyphenylene Oxide) and injection molded.

케이싱(110)이 합성수지제이면, 체결부재(310)에 의하여 체결되지 않는 케이싱(110)의 일단면의 테두리측이 벤딩될 수 있다. 케이싱(110)의 일단면의 테두리부측이 벤딩되면, 케이싱(110)과 라이너(220)의 접촉 부위로 유체가 누설된다.If the casing 110 is made of synthetic resin, the edge side of one end surface of the casing 110 that is not fastened by the fastening member 310 may be bent. When the edge portion side of the one end surface of the casing 110 is bent, the fluid leaks to the contact portion between the casing 110 and the liner 220.

이를 방지하기 위하여, 케이싱(110)의 단면(112)과 케이싱(110)의 개방된 일단면(一端面)의 외주면 사이에는 케이싱(110)의 개방된 일단면을 따라 링형상의 응력 보강용 홈(114)이 형성된다. 이때, 홈(114)은 케이싱(110)의 단면(段面)(112)과 접한다.In order to prevent this, between the end face 112 of the casing 110 and the outer peripheral surface of the open end surface of the casing 110 along the open end surface of the casing 110, a ring-shaped stress reinforcing groove 114 is formed. At this time, the groove 114 is in contact with the end face 112 of the casing 110.

그러면, 홈(114)으로 인하여, 케이싱(110)의 일단면의 테두리측은 굽힘응력에 대한 응력강도가 향상되므로, 벤딩되지 않는 것이다.Then, due to the groove 114, the edge side of the one end surface of the casing 110 is improved because the stress intensity against bending stress is not bent.

케이싱(110)을 사출성형할 때, 토출관(125)과 케이싱(110)의 상기 유로가 이 루는 각도가 소정 이하이면, 케이싱(110)을 금형으로부터 빼낼 수 없다. 따라서, 사출성형의 공정상, 케이싱(110)의 상기 유로와 토출관(125)은 120°∼160°의 각도를 이루는 것이 바람직하다. 그리고, 유체의 원활한 흐름을 위하여, 케이싱(110)의 내부와 상기 유로는 볼류트(Volute) 형상으로 형성되는 것이 바람직하다.When the injection molding of the casing 110, if the angle between the discharge pipe 125 and the flow path of the casing 110 is less than or equal to the predetermined, the casing 110 cannot be taken out of the mold. Therefore, in the injection molding process, the flow path of the casing 110 and the discharge tube 125 preferably form an angle of 120 ° to 160 °. In addition, to smoothly flow the fluid, the inside of the casing 110 and the flow path are preferably formed in a volute shape.

이상에서는, 본 발명의 일 실시예에 따라 본 발명을 설명하였지만, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 변경 및 변형한 것도 본 발명에 속함은 당연하다.In the above, the present invention has been described in accordance with one embodiment of the present invention, but those skilled in the art to which the present invention pertains have been changed and modified without departing from the spirit of the present invention. Of course.

도 1은 본 발명의 일 실시예에 따른 자동펌프의 외관을 보인 정면도.1 is a front view showing the appearance of the automatic pump according to an embodiment of the present invention.

도 2는 도 1의 "A-A"선 단면도.FIG. 2 is a cross-sectional view taken along the line “A-A” of FIG. 1.

도 3은 케이싱을 도 2의 "P"방향에서 본 정단면도.FIG. 3 is a front sectional view of the casing viewed from the “P” direction in FIG. 2; FIG.

Claims (3)

일면은 개방되고 타면은 밀폐되며 유입관 및 토출관이 연통 형성된 합성수지제의 케이싱, 상기 케이싱의 내부에 회전가능하게 설치된 임펠러를 가지는 임펠러부; 개방된 일단면(一端面)이 상기 케이싱의 개방된 일단면에 접촉 결합되는 하우징, 상기 하우징의 개방된 일단면측에 결합되며 테두리부측이 상기 케이싱의 개방된 일단면과 접촉하는 라이너, 상기 하우징에 설치되어 상기 임펠러를 회전시키는 회전축을 가지는 모터; 상기 케이싱과 상기 라이너 사이에 개재된 오링을 구비하는 자동펌프에 있어서,An impeller portion having one side open and the other side closed and a casing made of synthetic resin in which an inflow pipe and a discharge pipe communicate with each other, and an impeller rotatably installed in the casing; A housing in which one open end face is brought into contact with an open one end face of the casing, a liner coupled to an open end face side of the housing and an edge portion in contact with an open one end face of the casing; A motor having a rotating shaft installed to rotate the impeller; In the automatic pump having an O-ring interposed between the casing and the liner, 상기 케이싱의 개방된 일단면의 내주면측에는 상기 오링이 안치되는 단면(段面)이 형성되며,On the inner circumferential surface side of the open one end surface of the casing is formed a cross section in which the O-ring is placed, 상기 단면과 상기 케이싱의 개방된 일단면의 외주면 사이에는 상기 케이싱의 개방된 일단면을 따라 링형상의 응력 보강용 홈이 형성된 것을 특징으로 하는 자동펌프.Auto-pump characterized in that the ring-shaped stress reinforcing groove is formed between the end surface and the outer peripheral surface of the open one end of the casing along the open one end of the casing. 제 1 항에 있어서,The method of claim 1, 상기 홈은 상기 케이싱의 단면(段面)과 접하는 것을 특징으로 하는 자동펌프.The groove is in contact with the end face of the casing automatic pump. 제 1 항 또는 제 2 항에 있어서,The method according to claim 1 or 2, 상기 케이싱에는 일측은 상기 케이싱의 내부와 연통되고 타측은 상기 토출관과 연통된 유로가 형성되고,The casing is provided with a flow path in which one side is in communication with the inside of the casing and the other side is in communication with the discharge tube, 상기 케이싱의 내부와 상기 유로는 볼류트(Volute) 형상으로 형성되며,The inside of the casing and the flow path are formed in a volute shape, 상기 유로와 상기 토출관은 120°∼160°의 각도를 이루는 것을 특징으로 하는 자동펌프.The flow path and the discharge pipe is an automatic pump, characterized in that forming an angle of 120 ° to 160 °.
KR1020080071134A 2008-07-22 2008-07-22 Automatic pump KR100915890B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101128258B1 (en) * 2009-10-13 2012-03-23 윌로펌프 주식회사 Automatic pump
KR200461537Y1 (en) 2009-05-13 2012-07-19 왈러스 펌프 코퍼레이션 리미티드 Cap and a water pump with the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS594857U (en) 1982-07-02 1984-01-12 日本電子株式会社 Gasket for vacuum sealing
JPS5983282U (en) 1982-11-27 1984-06-05 高エネルギ−物理学研究所長 Flange joint structure for ultra-high vacuum
JPH0728264U (en) * 1993-10-06 1995-05-23 株式会社神戸製鋼所 Vacuum flange for ultra-high vacuum container
JPH08200280A (en) * 1995-01-25 1996-08-06 Matsushita Electric Works Ltd Pump structure for bubble generating bathtub

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS594857U (en) 1982-07-02 1984-01-12 日本電子株式会社 Gasket for vacuum sealing
JPS5983282U (en) 1982-11-27 1984-06-05 高エネルギ−物理学研究所長 Flange joint structure for ultra-high vacuum
JPH0728264U (en) * 1993-10-06 1995-05-23 株式会社神戸製鋼所 Vacuum flange for ultra-high vacuum container
JPH08200280A (en) * 1995-01-25 1996-08-06 Matsushita Electric Works Ltd Pump structure for bubble generating bathtub

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200461537Y1 (en) 2009-05-13 2012-07-19 왈러스 펌프 코퍼레이션 리미티드 Cap and a water pump with the same
KR101128258B1 (en) * 2009-10-13 2012-03-23 윌로펌프 주식회사 Automatic pump

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