US20220228584A1 - Easy-to-assemble air pump - Google Patents

Easy-to-assemble air pump Download PDF

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Publication number
US20220228584A1
US20220228584A1 US17/494,922 US202117494922A US2022228584A1 US 20220228584 A1 US20220228584 A1 US 20220228584A1 US 202117494922 A US202117494922 A US 202117494922A US 2022228584 A1 US2022228584 A1 US 2022228584A1
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US
United States
Prior art keywords
cylinder
hole
air pump
easy
pivotal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US17/494,922
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English (en)
Inventor
Scott Wu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of US20220228584A1 publication Critical patent/US20220228584A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • F04B39/0016—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 with valve arranged in the piston
    • 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
    • F04B39/10—Adaptations or arrangements of distribution members
    • 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
    • F04B39/14—Provisions for readily assembling or disassembling

Definitions

  • the present invention relates to an air pump and, more particular, to an easy-to-assemble air pump with one-piece piston member.
  • a conventional portable air pump such as the air pump disclosed in Taiwan Patent No. 410912, which includes a pump body, a one-way valve seat, a piston and a pipe body.
  • An outer edge of one end of the pump body is provided with an external threaded portion to screw a pivot seat, and a recess of the pivoting seat accommodates an end of an inner nozzle head.
  • One end of the piston is provided with a threaded portion to be screwed in a screw hole of the pipe body.
  • FIG. 4 another common portable air pump 90 shown in FIG. 4 includes a metal piston rod 91 movably coupled to a cylinder 92 for movement with respect thereto.
  • One end of the metal piston rod 91 is secured with a piston 93 via a rivet connection, and another end of the metal piston rod 91 is connected with a plastic adaptor 94 used to be pivotally coupled with a handle 95 .
  • the metal piston rod 91 must be made of metal due to the rivet connection with the piston 93 , and needs the plastic adaptor 94 to indirectly pivotally coupled with the handle 95 .
  • An easy-to-assemble air pump includes a cylinder, a piston member, a valve seat, and a valve connector.
  • the piston member includes a piston portion and a rod portion integrally formed as a monolithic member.
  • the piston portion is axially movably arranged into the cylinder, and the rod portion is movably coupled to the cylinder for movement with respect thereto.
  • the valve seat is arranged in the cylinder.
  • the valve connector is connected to one end of the cylinder.
  • the cylinder has a first through-hole penetrating a periphery of the cylinder.
  • the valve seat has a second through-hole aligning to the first through-hole.
  • the valve connector has a third through-hole aligning to the second through-hole.
  • a first pin member inserts through the first through-hole, the second through-hole, and the third through-hole.
  • the first pin member has a communicating bore interconnected with the cylinder and the valve connector.
  • the easy-to-assemble air pump further includes a handle and a second pin member.
  • One end of the cylinder opposite to the valve seat is provided with an end cap.
  • the rod portion has a pivotal end extending out of the end cap and a first pivotal hole provided at the pivotal end.
  • the handle has a second pivotal hole aligning to the first pivotal hole.
  • the second pin member inserts through the first pivotal hole and the second pivotal hole, thereby pivotally connecting the handle to the pivotal end.
  • the end cap is threadedly mounted at one end of the cylinder opposite to the valve seat.
  • both of the rod portion and the handle are made of plastic material.
  • the rod portion is hollow and has a thickness greater than 0.6 mm.
  • the piston portion has a first outer diameter
  • the rod portion further has a second outer diameter.
  • the ratio of the second outer diameter to the first outer diameter is greater than 0.5.
  • FIGS. 1 and 2 are cross-section views of an easy-to-assemble air pump of a embodiment according to the present invention.
  • FIG. 3 is another cross-section view taken along the line 3 - 3 of FIG. 2 .
  • FIG. 4 is a cross-section view of a prior art portable air pump.
  • FIGS. 1-3 show an easy-to-assemble air pump of a embodiment according to the present invention.
  • the easy-to-assemble air pump includes a cylinder 10 , a piston member 20 , a valve seat 30 , a valve connector 40 , a first pin member 50 , a handle 60 , and a second pin member 70 .
  • the cylinder 10 has a first through-hole 11 penetrating a periphery of the cylinder 10 , and an end cap 12 threadedly mounted at one end of the cylinder 10 opposite to the valve seat 30 .
  • the piston member 20 includes a piston portion 21 and a rod portion 22 integrally formed as a monolithic member.
  • the piston portion 21 is axially movably arranged into the cylinder 10 .
  • the rod portion 22 is movably coupled to the cylinder 10 for movement with respect thereto and extends out of the cylinder 10 .
  • the rod portion 22 has a pivotal end 221 extending out of the end cap 12 and a first pivotal hole 222 provided at the pivotal end 221 . Further, the rod portion 22 is hollow and has a thickness T 22 greater than 0.6 mm.
  • the piston portion 21 has a first outer diameter D 21
  • the rod portion 22 further has a second outer diameter D 22 .
  • the ratio of the second outer diameter D 22 to the first outer diameter D 21 is greater than 0.5.
  • the valve seat 30 is arranged in the cylinder 10 and has a second through-hole 31 aligning to the first through-hole 11 .
  • the valve connector 40 is connected to one end of the cylinder 10 and has a third through-hole 41 aligning to the second through-hole 31 .
  • the first pin member 50 inserts through the first through-hole 11 , the second through-hole 31 , and the third through-hole 41 .
  • the first pin member 50 has a communicating bore 51 interconnected with the cylinder 10 and the valve connector 40 , so that the air compressed by the piston portion 21 in the cylinder 10 can pass through the valve seat 30 and the valve connector 40 to enter an inflatable object connected to the valve connector 40 .
  • the handle 60 has a second pivotal hole 61 aligning to the first pivotal hole 222 .
  • the second pin member 70 inserts through the first pivotal hole 222 and the second pivotal hole 61 , thereby pivotally connecting the handle 60 to the pivotal end 221 .
  • both of the rod portion 22 and the handle 60 are made of plastic material to cause the handle 60 able to be directly pivotally connected to the rod portion 22 without any dissimilar material adaptor.
  • the easy-to-assemble air pump of this embodiment has the piston portion 21 and the rod portion 22 integrally formed as a monolithic member, so that the assembly step of the piston member 20 can be simply omitted during the process of assembling the air pump. There is no need to screw the piston and the pipe body like a conventional pump, which simplifies the assembly process of the air pump.
  • valve seat 30 and the valve connector 40 it is only necessary to install the valve seat 30 and the valve connector 40 on one end of the cylinder 10 respectively, and use the first pin member 50 to insert through the first through-hole 11 of the cylinder 10 , the second through-hole 31 of the valve seat 30 , and the third through-hole 41 of the valve connector 40 to finish the assembly process quickly, which greatly shortens the assembly time and reduces the production cost.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)
  • Details Of Reciprocating Pumps (AREA)
US17/494,922 2021-01-20 2021-10-06 Easy-to-assemble air pump Abandoned US20220228584A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW110200696U TWM611477U (zh) 2021-01-20 2021-01-20 易組裝打氣筒
TW110200696 2021-01-20

Publications (1)

Publication Number Publication Date
US20220228584A1 true US20220228584A1 (en) 2022-07-21

Family

ID=77037587

Family Applications (1)

Application Number Title Priority Date Filing Date
US17/494,922 Abandoned US20220228584A1 (en) 2021-01-20 2021-10-06 Easy-to-assemble air pump

Country Status (2)

Country Link
US (1) US20220228584A1 (zh)
TW (1) TWM611477U (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD979737S1 (en) * 2018-03-06 2023-02-28 Hunter Fan Company Combined ceiling fan motor housing and light kit
USD982615S1 (en) * 2021-09-15 2023-04-04 Scott Wu Air pump
USD1016857S1 (en) * 2021-11-24 2024-03-05 Ki Yong Chang Hand pump

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6318969B1 (en) * 2000-05-24 2001-11-20 Lo-Pin Wang Floor air pump
US6428290B1 (en) * 2000-07-06 2002-08-06 Lo-Pin Wang Air pump
US6485264B1 (en) * 2000-06-16 2002-11-26 Scott Wu Anti-leakage device for a manual air pump with a pressure gauge
US6652242B2 (en) * 2001-07-31 2003-11-25 Scott Wu Pump
US6739842B2 (en) * 2002-04-13 2004-05-25 Scott Wu Pump
US6921254B2 (en) * 2002-04-13 2005-07-26 Scott Wu Pump
US7331768B2 (en) * 2002-07-08 2008-02-19 Scott Wu Pump with gauge
US20090068038A1 (en) * 2007-09-10 2009-03-12 Ying-Che Huang Pump
US7658596B2 (en) * 2007-02-08 2010-02-09 Scott Wu Mini pump's nozzle device and handheld portion made of dual material with different hardnesses
US9206916B1 (en) * 2014-05-23 2015-12-08 Wei-Chi Wang Dual-purpose tire inlet valve connector
US9651041B2 (en) * 2011-01-27 2017-05-16 Beto Engineering and Marketing Co., Ltd. Operating handle assembly for hand air pump
US9945367B2 (en) * 2013-03-20 2018-04-17 Beto Engineering and Marketing Co., Ltd. Dual-gauge air pump
US9989180B2 (en) * 2016-03-22 2018-06-05 Beto Engineering & Marketing Co. Ltd. Attachment for air valve
US10502205B2 (en) * 2017-10-30 2019-12-10 Beto Engineering and Marketing Co., Ltd. Air pump device
US10563643B2 (en) * 2017-05-23 2020-02-18 Beto Engineering & Marketing Co., Ltd. Hand pump with detachable air storage tank
US10612535B2 (en) * 2017-05-23 2020-04-07 Beto Engineering & Marketing Co., Ltd. Hand pump with air storage tank

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6318969B1 (en) * 2000-05-24 2001-11-20 Lo-Pin Wang Floor air pump
US6485264B1 (en) * 2000-06-16 2002-11-26 Scott Wu Anti-leakage device for a manual air pump with a pressure gauge
US6428290B1 (en) * 2000-07-06 2002-08-06 Lo-Pin Wang Air pump
US6652242B2 (en) * 2001-07-31 2003-11-25 Scott Wu Pump
US6739842B2 (en) * 2002-04-13 2004-05-25 Scott Wu Pump
US6921254B2 (en) * 2002-04-13 2005-07-26 Scott Wu Pump
US7331768B2 (en) * 2002-07-08 2008-02-19 Scott Wu Pump with gauge
US7658596B2 (en) * 2007-02-08 2010-02-09 Scott Wu Mini pump's nozzle device and handheld portion made of dual material with different hardnesses
US20090068038A1 (en) * 2007-09-10 2009-03-12 Ying-Che Huang Pump
US9651041B2 (en) * 2011-01-27 2017-05-16 Beto Engineering and Marketing Co., Ltd. Operating handle assembly for hand air pump
US9945367B2 (en) * 2013-03-20 2018-04-17 Beto Engineering and Marketing Co., Ltd. Dual-gauge air pump
US9206916B1 (en) * 2014-05-23 2015-12-08 Wei-Chi Wang Dual-purpose tire inlet valve connector
US9989180B2 (en) * 2016-03-22 2018-06-05 Beto Engineering & Marketing Co. Ltd. Attachment for air valve
US10563643B2 (en) * 2017-05-23 2020-02-18 Beto Engineering & Marketing Co., Ltd. Hand pump with detachable air storage tank
US10612535B2 (en) * 2017-05-23 2020-04-07 Beto Engineering & Marketing Co., Ltd. Hand pump with air storage tank
US10502205B2 (en) * 2017-10-30 2019-12-10 Beto Engineering and Marketing Co., Ltd. Air pump device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD979737S1 (en) * 2018-03-06 2023-02-28 Hunter Fan Company Combined ceiling fan motor housing and light kit
USD982615S1 (en) * 2021-09-15 2023-04-04 Scott Wu Air pump
USD1016857S1 (en) * 2021-11-24 2024-03-05 Ki Yong Chang Hand pump

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