KR101068781B1 - Valve type portable air pump - Google Patents

Valve type portable air pump Download PDF

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Publication number
KR101068781B1
KR101068781B1 KR1020090076553A KR20090076553A KR101068781B1 KR 101068781 B1 KR101068781 B1 KR 101068781B1 KR 1020090076553 A KR1020090076553 A KR 1020090076553A KR 20090076553 A KR20090076553 A KR 20090076553A KR 101068781 B1 KR101068781 B1 KR 101068781B1
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South Korea
Prior art keywords
ball
valve
case
air
inlet hole
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KR1020090076553A
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Korean (ko)
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KR20110019017A (en
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이만복
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이만복
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B33/00—Pumps actuated by muscle power, e.g. for inflating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B33/00—Pumps actuated by muscle power, e.g. for inflating
    • F04B33/005—Pumps actuated by muscle power, e.g. for inflating specially adapted for inflating tyres of non-motorised vehicles, e.g. cycles, tricycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
    • F04B39/0022—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons piston rods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
    • F04B39/0072—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes characterised by assembly or mounting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/1046—Combination of in- and outlet valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/121—Casings
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/12—Kind or type gaseous, i.e. compressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/30—Retaining components in desired mutual position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/60—Fluid transfer

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

본 발명은 축구공, 배구공 등의 공이나 자전거 튜브 및 공기를 주입하여 사용하는 물품에 공기를 주입하는 밸브식 휴대용 펌프에 관한 것이다. 특히 피스톤의 작동에 의해 공기가 일방향으로만 공급되도록 하는 일방향 밸브는 볼에 의해 공기의 유입공이 개폐되는 구조를 가짐으로써, 체크 밸브의 역할이 확실하고 조립 불량이 없는 효과를 가진 밸브식 휴대용 펌프에 관한 것이다.The present invention relates to a valve-type portable pump for injecting air into a ball, a bicycle tube, such as a soccer ball, a volleyball ball, and an article used by injecting air. In particular, the one-way valve, which allows the air to be supplied in one direction only by the operation of the piston, has a structure in which the inlet hole of the air is opened and closed by the ball. It is about.

본 발명에 따르면, 통형의 케이스; 케이스에 삽입되어 왕복 피스톤 운동을 하고, 케이스의 외측에 위치되는 단부에는 손잡이가 설치되고, 케이스의 내측에 위치되는 단부에는 케이스의 내측 벽면에 밀착되게 움직이는 피스톤막이 설치된 로드; 상기 케이스의 단부에 설치되고, 배출구가 형성된 밸브하우징; 상기 밸브하우징의 내부에 설치된 밸브;를 포함하여 구성된 밸브식 휴대용 펌프에 있어서, 상기 밸브는 밸브하우징에 압입되어 고정되고 유입공이 뚫려진 블럭과, 상기 블럭에 체결되고, 다수 개의 통공이 뚫린 관형의 케이싱과, 상기 케이싱의 내부에 삽입되고, 블럭의 유입공을 폐구하거나 개구하는 볼과, 상기 케이싱에 삽입되어 볼을 유입공을 막도록 밀어주는 볼스프링을 포함하여 구성된 밸브식 휴대용 펌프가 제공된다.According to the present invention, a cylindrical case; A rod which is inserted into the case to perform a reciprocating piston movement, a handle is installed at an end positioned outside the case, and a piston membrane installed at an end positioned inside the case to move in close contact with the inner wall of the case; A valve housing installed at an end of the case and having an outlet; In the valve-type portable pump comprising a valve installed in the valve housing, the valve is press-fitted into the valve housing and fixed to the inlet hole, the block is fastened to the block, a plurality of through-hole tubular A valve type portable pump including a casing, a ball inserted into the casing and closing or opening the inlet hole of the block, and a ball spring inserted into the casing to push the ball to block the inlet hole are provided. .

펌프, 체크 밸브, 볼, 피스톤 Pump, check valve, ball, piston

Description

밸브식 휴대용 펌프{Valve type portable air pump}Valve type portable air pump

본 발명은 축구공, 배구공 등의 공이나 자전거 튜브 및 공기를 주입하여 사용하는 물품에 공기를 주입하는 밸브식 휴대용 펌프에 관한 것이다. 특히 피스톤의 작동에 의해 공기가 일방향으로만 공급되도록 하는 일방향 밸브는 볼에 의해 공기의 유입공이 개폐되는 구조를 가짐으로써, 체크 밸브의 역할이 확실하고 조립 불량이 없는 효과를 가진 밸브식 휴대용 펌프에 관한 것이다.The present invention relates to a valve-type portable pump for injecting air into a ball, a bicycle tube, such as a soccer ball, a volleyball ball, and an article used by injecting air. In particular, the one-way valve, which allows the air to be supplied in one direction only by the operation of the piston, has a structure in which the inlet hole of the air is opened and closed by the ball. It is about.

[문헌 1] 한국 실용신안등록 제0169209호, 1999.11.17[Document 1] Korean Utility Model Registration No. 0169209, November 17, 1999

[문헌 2] 한국 실용신안공고 제20-1983-0001263, 1983.07.27[Document 2] Korean Utility Model Publication No. 20-1983-0001263, 1983.07.27

본 발명은 배구공, 축구공이나 자전거의 튜브 또는 공기를 주입하여 사용하는 모든 물품에 공기를 주입하는 밸브식 휴대용 펌프에 관한 것으로, 체크밸브의 구조에 의해 일측 방향으로만 공기를 공급하고, 반대 방향으로의 공기 누출을 차단함으로써, 연속적인 공기의 공급이 가능한 도구이다.The present invention relates to a valve-type portable pump that injects air into a volleyball ball, a soccer ball or a bicycle tube, or any item used by injecting air. By blocking the leakage of air into the furnace, it is a tool that can continuously supply air.

이러한 펌프는 일방향 밸브의 구조에 큰 특징이 있는데, 문헌 1의 경우, 개폐판이 배출구멍을 개폐할 수 있도록 된 구조로서, 피스톤에 의해 공기가 배출구멍을 통해 배출될 때 공기압력이 개폐판을 밀어 주고, 반대 방향으로는 개폐판이 배출구멍을 막아 역류를 방지하는 구조이다.Such a pump has a great feature in the structure of the one-way valve. In the case of Document 1, the opening and closing plate is configured to open and close the discharge hole. When the air is discharged through the discharge hole by the piston, the air pressure pushes the opening and closing plate. In the opposite direction, the opening and closing plate blocks the discharge hole to prevent backflow.

그러나 상기의 개폐판은 탄성과 연성이 있는 재질로 되어 있어, 사용에 따라 노화될 경우 공기의 단속이 어려운 문제가 있게 된다. 또한 개폐판을 조립하는 공정이 번거롭고, 조립후에 탈락되는 경우가 있어 펌프의 기능을 하지 못하는 문제점이 있다.However, the opening and closing plate is made of a material with elasticity and ductility, there is a problem that is difficult to control the air when aging with use. In addition, the process of assembling the opening and closing plate is cumbersome, there is a problem that can be eliminated after the assembly does not function as a pump.

따라서 본 발명은 조립이 용이하고 조립된 후에는 일방향 밸브의 기능 상실이 없도록 하는 구조를 제공함에 목적이 있다.Accordingly, an object of the present invention is to provide a structure that is easy to assemble and there is no loss of function of the one-way valve after assembly.

본 발명은 상기의 목적을 달성하기 위하여, 일방향 밸브의 신뢰성을 높인 구조를 제공하게 된다. 즉, 종래의 개폐판을 사용하지 않고, 볼(ball)에 의해 유입공 이 개폐되는 구조를 가진 펌프이다.In order to achieve the above object, the present invention provides a structure in which the reliability of the one-way valve is increased. That is, it is a pump having a structure in which the inlet hole is opened and closed by a ball (ball) without using a conventional opening and closing plate.

본 발명에 따르면, 볼에 의해 공기를 일방향으로 공급하고 역류를 방지할 수 있게 됨으로써, 조립 후에는 기능의 상실이 없어 신뢰성이 높다. 그리고 공기 주입이 확실하고 편리하여 남녀노소 누구나 간편하게 사용할 수 있다. 또한 조립이 매우 간단하게 이루어져 생산성이 향상된다.According to the present invention, by supplying air in one direction by the ball and preventing reverse flow, there is no loss of function after assembly and high reliability. And since the air injection is certain and convenient, it can be used easily by all ages. In addition, the assembly is very simple and the productivity is improved.

본 발명에 의한 밸브식 휴대용 펌프는 통형의 케이스(1); 케이스(1)에 삽입되어 왕복 피스톤 운동을 하고, 케이스(1)의 외측에 위치되는 단부에는 손잡이(2)가 설치되고, 케이스(1)의 내측에 위치되는 단부에는 피스톤막(3)이 설치되어 케이스(1)의 내측 벽면에 밀착되게 움직이게 설치된 로드(4); 상기 케이스(1)의 단부에 설치되고, 배출구(5)가 형성된 밸브하우징(6); 상기 밸브하우징(6)의 내부에 설치된 밸브(7);를 포함하여 구성된다.Valve-type portable pump according to the present invention is a cylindrical case (1); Inserted into the case 1 to reciprocate the piston, the handle 2 is provided at the end located outside the case 1, the piston membrane 3 is installed at the end located inside the case 1 A rod 4 installed to be in close contact with the inner wall of the case 1; A valve housing (6) installed at an end of the case (1) and having a discharge port (5) formed thereon; And a valve (7) installed inside the valve housing (6).

특히 본 발명은 상기 밸브(7)에 특징이 있는 것으로, 상기 밸브(7)는 밸브하우징(6)에 압입되어 고정되고 유입공(8)이 뚫려진 블럭(9)과, 상기 블럭(9)에 체결되고, 다수 개의 통공(10)이 뚫린 관형의 케이싱(15)과, 상기 케이싱(15)의 내부에 삽입되고, 블럭(9)의 유입공(8)을 폐구하거나 개구하는 볼(12)과, 상기 케이싱(15)에 삽입되어 볼(12)이 유입공(8)을 막도록 밀어주는 볼스프링(13)을 포함하여 구성 된다.In particular, the present invention is characterized in that the valve (7), the valve (7) is press-fitted into the valve housing (6), the block (9) and the inlet hole (8) is drilled, and the block (9) A tubular casing 15 fastened to the plurality of through holes 10 and inserted into the casing 15 and closing or opening the inlet hole 8 of the block 9. And, is inserted into the casing 15 is configured to include a ball spring 13 to push the ball 12 to block the inlet hole (8).

도 1에 도시된 바와 같이, 손잡이(2)를 왕복 작동시키면, 로드(4)에 설치된 피스톤막(3)이 케이스(1)의 내부 벽면에 접촉되면서 왕복 운동하게 된다.As shown in FIG. 1, when the handle 2 is reciprocally operated, the piston membrane 3 installed in the rod 4 contacts the inner wall surface of the case 1 and reciprocates.

손잡이(2)를 우측으로 이동시키면, 피스톤막(3)이 우측으로 움직이면서, 피스톤막(3)의 좌측 공간은 부압이 발생된다. 이 때 볼(12)은 부압에 의해 도 2에서 우측으로 이동되어 이점쇄선으로 표시된 위치에 와서 유입공(8)을 막게 된다. 물론 볼스프링(13)이 볼(12)을 밀어 유입공(8)을 막는 기본적으로 구조를 가질 수 있다.When the knob 2 is moved to the right side, the piston membrane 3 moves to the right side, and negative pressure is generated in the space on the left side of the piston membrane 3. At this time, the ball 12 is moved to the right in Figure 2 by the negative pressure to come to the position indicated by the double-dot chain line to block the inlet hole (8). Of course, the ball spring 13 may have a structure basically blocking the inlet hole 8 by pushing the ball 12.

그리고 볼(12)이 유입공(8)을 막은 상태에서, 피스톤막(3)이 계속 우측으로 이동되면, 피스톤막(3)과 케이스(1)의 내벽면 사이에 틈이 생기고 이를 통해 외부 공기가 유입된다.When the piston membrane 3 continues to move to the right while the ball 12 blocks the inlet hole 8, a gap is formed between the piston membrane 3 and the inner wall surface of the case 1 and thereby the outside air. Is introduced.

상기와 같이 외부 공기가 케이스(1) 내부에 가득하게 되고, 이어서 손잡이(2)를 좌측으로 밀게 되면, 피스톤막(3)이 왼쪽으로 밀리면서 공기를 좌측으로 밀어내게 된다. 이 때에는 피스톤막(3)의 가장자리가 좌측방향으로 굴곡져 설치되므로, 내부 공기압을 받더라도 피스톤막(3)과 케이스(1)의 내벽면 사이로 공기가 빠지지 않게 된다. 이는 공기압이 피스톤막(3)의 가장자리를 케이스(1)의 내벽면 쪽으로 가압하여 더욱 더 기밀되게 하기 때문이다.As described above, when the outside air is filled inside the case 1, and then the handle 2 is pushed to the left side, the piston membrane 3 is pushed to the left and the air is pushed to the left side. At this time, since the edge of the piston film 3 is bent in the left direction, air does not escape between the piston film 3 and the inner wall surface of the case 1 even when the internal air pressure is applied. This is because the air pressure presses the edge of the piston film 3 toward the inner wall surface of the case 1 to make it more airtight.

따라서 피스톤막(3)의 좌측 이동은 공기를 밀어 밸브(7) 쪽으로 이동시키게 되고, 밸브(7)는 개구되어 노즐(14)로 공기를 배출시킨다.Accordingly, the left side movement of the piston membrane 3 pushes air to move toward the valve 7, and the valve 7 opens to discharge the air to the nozzle 14.

즉, 밸브하우징(6)의 내부에 설치된 블럭(9)의 유입공(8)으로 공기가 지나가게 되면, 유입공(8)에 밀착되어 막고 있는 볼(12)은 공기압에 의해 볼스프링(13)을 밀어내게 된다. 따라서 공기는 케이싱(15)에 뚫린 통공(10)을 통해 빠져나가게 되고, 밸브하우징(6)의 배출구(5)를 통해 배출된다.That is, when air passes through the inlet hole 8 of the block 9 provided in the valve housing 6, the ball 12 closely contacted with the inlet hole 8 is blocked by the air spring 13. Pushed). Therefore, the air is discharged through the through hole 10 which is drilled in the casing 15, and is discharged through the outlet 5 of the valve housing 6.

배출구(5)에는 도 3에 도시된 바와 같이 사용의 목적에 맞는 다양한 노즐(14)이 설치될 수 있다.As shown in FIG. 3, the outlet 5 may be provided with various nozzles 14 suitable for the purpose of use.

상기와 같이 피스톤막(3)이 좌측으로 이동되어 공기를 배출시킨 후에는 다시 공기를 충진하여 배출시켜야 하는데, 공기 충진을 위해 우측으로 이동되어야 한다. 그리고 이 때에는 배출된 공기가 역방향으로 흘러 나와서는 안된다. 이러한 역류 방지를 밸브(7)가 하게 되고, 본 발명에서는 볼(12)이 중요한 역할을 한다.As described above, after the piston membrane 3 is moved to the left to discharge the air, the piston membrane 3 needs to be filled again to be discharged. At this time, the discharged air must not flow out in the reverse direction. The valve 7 prevents such a backflow, and the ball 12 plays an important role in the present invention.

즉, 공기의 배출이 끝나면, 볼스프링(13)이 공기 압력을 이기게 되어 볼(12)을 다시 유입공(8)의 끝단으로 밀어 막게 된다. 따라서 피스톤막(3)이 우측으로 이동하더라도 배출구(5)를 통해 배출된 공기가 다시 배출구(5)를 통해 케이스(1)의 내부로 역류되는 것이 방지된다.That is, when the discharge of air is finished, the ball spring 13 is to overcome the air pressure to push the ball 12 back to the end of the inlet hole (8). Therefore, even if the piston film 3 moves to the right, the air discharged through the outlet 5 is prevented from flowing back to the inside of the case 1 through the outlet 5 again.

본 발명은 상기와 같이 체크 밸브의 구조를 볼(12)을 이용함으로써 다른 구조에 의한 체크 밸브보다 더욱 확실한 기능이 가능하고, 볼(12)이 마모되지 않는 이상 제 기능을 하게 되므로 조립 후의 기능 상실이 없다.By using the ball 12 in the structure of the check valve as described above, the present invention enables a more reliable function than the check valve by other structures, and functions as long as the ball 12 is not worn, so that the function after assembly is lost. There is no

따라서 기능 상실 없이 강한 압력으로 공기를 압출할 수 있으므로 공기 주입 효율이 증대되어, 남녀노소 누구나 힘들이지 않고 언제 어디서나 축구공, 배구공 등의 공이나 자전거 튜브 및 공기를 주입하여 사용하는 물품에 간편하게 공기를 주입할 수 있는 효과가 있다.Therefore, the air can be extruded at a high pressure without loss of function, so the efficiency of air injection is increased. Injectable effect.

도 1은 본 발명의 단면도1 is a cross-sectional view of the present invention

도 2는 밸브의 상세 단면도2 is a detailed cross-sectional view of the valve

도 3은 노즐의 다양한 실시예시도3 illustrates various embodiments of a nozzle

※ 도면의 주요 부분에 대한 부호의 설명[Description of Drawings]

1 : 케이스 2 : 손잡이1: case 2: handle

3 : 피스톤막 4 : 로드3: piston membrane 4: rod

5 : 배출구 6 : 밸브하우징5: outlet 6: valve housing

7 : 밸브 8 : 유입공7: valve 8: inlet hole

9 : 블럭 10 : 통공9: block 10: through-hole

12 : 볼 13 : 볼스프링12: ball 13: ball spring

14 : 노즐 15 : 케이싱14: nozzle 15: casing

Claims (1)

케이스(1)의 외측 단부에는 손잡이(2)가 설치되고, 케이스(1)의 내측 단부에는 내측 벽면에 밀착되게 움직이는 피스톤막(3)이 설치된 로드(4)와 A handle 2 is installed at an outer end of the case 1, and a rod 4 provided with a piston film 3 moving in close contact with the inner wall at an inner end of the case 1. 내부에 밸브(7)가 설치되고, 배출구(5)를 갖는 밸브하우징(6)과,A valve housing 6 provided therein, a valve housing 6 having a discharge port 5, 상기 밸브(7)는 유입공(8)이 뚫려진 블럭(9)에 체결되어 다수 개의 통공(10)이 뚫린 관형의 케이싱(15)의 내부에 위치하며, 블럭(9)의 유입공(8)을 폐구하거나 개구하는 볼(12)을 밀어주는 볼스프링(13)을 포함하여 구성됨을 특징으로 하는 밸브식 휴대용 펌프.The valve 7 is fastened to the block 9 through which the inlet 8 is drilled, and is located inside the tubular casing 15 through which the plurality of through holes 10 are drilled, and the inlet 8 of the block 9. And a ball spring (13) for pushing the ball (12) to close or open the valve.
KR1020090076553A 2009-08-19 2009-08-19 Valve type portable air pump KR101068781B1 (en)

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KR101068781B1 true KR101068781B1 (en) 2011-09-30

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