EP2955381B1 - Luftkompressorvorrichtung - Google Patents

Luftkompressorvorrichtung Download PDF

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Publication number
EP2955381B1
EP2955381B1 EP13874544.3A EP13874544A EP2955381B1 EP 2955381 B1 EP2955381 B1 EP 2955381B1 EP 13874544 A EP13874544 A EP 13874544A EP 2955381 B1 EP2955381 B1 EP 2955381B1
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EP
European Patent Office
Prior art keywords
air
cylinder
storage container
mounting bolt
soft cap
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.)
Active
Application number
EP13874544.3A
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English (en)
French (fr)
Other versions
EP2955381A1 (de
EP2955381A4 (de
Inventor
Wen-San Chou
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
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to HUE13874544A priority Critical patent/HUE037832T2/hu
Priority to PL13874544T priority patent/PL2955381T3/pl
Publication of EP2955381A1 publication Critical patent/EP2955381A1/de
Publication of EP2955381A4 publication Critical patent/EP2955381A4/de
Application granted granted Critical
Publication of EP2955381B1 publication Critical patent/EP2955381B1/de
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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
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • 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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/122—Cylinder block
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • F04B49/03—Stopping, starting, unloading or idling control by means of valves
    • F04B49/035—Bypassing
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/24—Bypassing

Definitions

  • the present invention relates to an air compressor, which allows air supply to keep less than a safety pressure without using a mechanical safety valve, so that a tire can be inflated without exceeding a safety pressure thereof.
  • the air compressor should be installed with a safety valve which can automatically release air into the environment upon detecting a high pressure.
  • a safety valve which can automatically release air into the environment upon detecting a high pressure.
  • the valve may be stuck, so that it cannot work properly when a high pressure of compressed air occurs.
  • a tire may be excessively inflated to cause a blowout.
  • One object of the present invention is to provide an air compressor, which allows its air supply to keep less than a safety pressure without using a mechanical safety valve, so that a tire can be inflated without exceeding a safety pressure thereof and thus prevent a blowout.
  • the present invention offers a solution as follows:
  • one feature of the present invention is that a tube is formed integrally with the air storage container and on the cylinder, and it defines therein the auxiliary air chamber communicating with the inner space of the cylinder but not communicating with the inner space of the air storage container; when the piston body reaches top dead center, the head of the piston body almost contacts the top wall of the cylinder, so that part of the compressed air produced in the cylinder may flow into the auxiliary air chamber, and thus downward strokes of the piston body can be conducted more smoothly, and furthermore, the pressure of the compressed air can be prevented from exceeding a safety pressure set for an object to be inflated, without using a mechanical safety valve.
  • the air compressor of the present invention allows its air supply to keep less than a safety pressure without using a mechanical safety valve, so that a tire can be inflated without exceeding a safety pressure thereof; at the same time, the manufacturing cost of the air compressor can be reduced, and the piston body can conduct downward strokes more smoothly.
  • an air compressor according one embodiment of the present invention is shown, which generally includes a box 1 and a compressor unit installed in the box 1, wherein the box 1 is provided with a switch 11, a button 12, and a transparent window 13.
  • the compressor unit includes a cylinder 3, which allows a piston body 25 to operate therein, and a main frame 20, which is formed integrally with the cylinder 3 and used to mount a motor 21.
  • the main frame 20 also mounts a transmission mechanism, which includes a pinion 22 and a gear 23 provided with a counterweight 28 and a crankpin 24.
  • the motor 21 is fitted with a cooling fan 27.
  • the motor 21 can drive the transmission mechanism to have the piston body 25 conduct reciprocating motion along an inner surface 34 of the cylinder 3 to produce compressed air, which can overcome a compression spring 42 and thus push a plug 41 up, so that the compressed air can be transferred into an air storage container 5 via a main exit hole 32.
  • the air storage container 5 is provided with a plurality of outlets 52, 53, 55 (see also FIG 8 ), wherein the outlet 52 is connected with a hose 91; the outlet 53 is connected with a relief valve 7; the outlet 55 is connected with a pressure gauge 9.
  • a tube 54 is formed integrally with the air storage container 5 and on the cylinder 3, wherein the tube 54 defines therein an auxiliary chamber 541 communicating with the inner space 33 of the cylinder 3 via an auxiliary exit hole 35.
  • the auxiliary air chamber 541 of the tube 54 does not communicate with the inner space 51 of the air storage container 5.
  • An adjusting bolt 8 is threadedly fitted into the tube 54 for adjusting the volume of the auxiliary chamber 541.
  • the bottom 50 of the air storage container 5 is joined to the top wall 31 of the cylinder 3.
  • the top wall 31 defines the main exit hole 32 and the auxiliary exit hole 35.
  • the main exit hole 32 allows the inner space 33 of the cylinder 3 to communicate with the inner space 51 of the air storage container 5.
  • the auxiliary exit hole 35 allows the inner space 33 of the cylinder 3 to communicate with the auxiliary chamber 541 of the tube 54.
  • the plug 41 is placed on the main exit hole 32 defined on the top wall 31.
  • a rectangular top cover 6 has a rotating handle 61 at its outer surface and a central column 62 extending from its inner surface (see FIG. 5 ).
  • the central column 62 has a base portion and a reduced portion 64 extending from the base portion, wherein a step 63 is formed between the base portion and the reduced portion 64.
  • the base portion of the central column 62 is provided with a plurality of annular protrusions 621 and defines a plurality of annular grooves 622 at its outer surface.
  • a plurality of seal rings 65 are fitted into the annular grooves 622 of the central column 62.
  • the top cover 6 can be coupled to the air storage container 5 by turning the rotating handle 61 for sealing the air storage container 5.
  • One end of the compression spring 42 is engaged with the plug 41, while an opposite end of the compression spring 42 is engaged with a lowest one of the annular protrusions 621 of the central column 62.
  • the relief valve 7 includes a hollow soft cap 71 having a tip 711 and an annular portion provided with a plurality of spaced protrusions 712 at its outer surface. Between two adjacent protrusions 712 defines a gap 713.
  • a mounting bolt 72 defines a central through hole 722 extending from an opening 721 at one end of the mounting bolt 72, wherein the central through hole 722 of the mounting bolt 72 has a diameter smaller than the opening 721 of the mounting bolt 72.
  • the soft cap 71 is fitted in the outlet 53.
  • the mounting bolt 72 is fitted into the outlet 53 to have an opposite end of the mounting bolt 72 located near the soft cap 71.
  • the annular portion of the soft cap 71 is engaged with an inner surface of the outlet 53.
  • the tip 711 of soft cap 71 is located near the opposite end of the mounting bolt 72.
  • a push bar 121 of the button 12 is inserted through the central through hole 722 of the mounting bolt 72 to touch the tip 711 of the soft cap 71.
  • the button 12 may be depressed to allow its push bar 121 to compress the soft cap 71 and thus deform the soft cap 71, so that excessive air in an object to be inflated can be released into ambient environment via the outlet 53 which connects the relief valve 7, as shown in FIGS. 5 and 6 .
  • the adjusting bolt 8 is threadedly fitted into the tube 54 for adjusting the volume of the auxiliary air chamber 541.
  • the compressed air produced in the cylinder 3 will not exceed a safety pressure set for the object to be inflated; furthermore, this design allows downward strokes of the piston body 25 to be conducted more smoothly. Also, the upward movement of the plug 41 can be limited by the reduced portion 64 of the central column 62 of the top cover 6, as shown in FIGS. 7 and 8 .
  • a user may depress the relief valve 7 to release air into ambient environment to reduce the pressure.
  • one feature of the present invention is that the cylinder 3 is provided with the tube 54 defining the auxiliary air chamber 541 which communicates with the inner space 33 of the cylinder 3 via the auxiliary exit hole 35; the inner space 51 of the air storage container 5 communicates with the inner space 33 of the cylinder 3 via the main exit hole 32, while the auxiliary air chamber 541 of the tube 54 does not communicate with the inner space 51 of the air storage container 5; therefore, a large amount of the compressed air produced in the cylinder 3 can flow into the inner space 51 of the air storage container 5 via the main exit hole 32, and then can flow into an object to be inflated via one of the outlets provided at the air storage container 5; part of the compressed air produced in the cylinder 3 can flow into the auxiliary air chamber 541 via the auxiliary exit hole 35.
  • This design can prevent the pressure of the compressed air from exceeding a safety pressure set for an object to be inflated, without using a mechanical safety valve; furthermore, downward strokes of the piston body 25 can be conducted more smoothly.

Claims (4)

  1. Luftkompressor, der ein Gehäuse (1) und eine elektrisch betriebene Kompressoreinheit beinhaltet, die in dem Gehäuse (1) angebracht ist, wobei ein Motor (21) einen Kolbenkörper (25) zur Ausführung einer hin- und hergehenden Bewegung in einem Zylinder (3) antreibt, um Druckluft zu erzeugen, welche in einen Luftspeicherbehälter (5), der mit einer Mehrzahl von Auslässen (52, 53, 55) versehen ist, überführt wird,
    wobei der Luftkompressor dadurch gekennzeichnet ist, dass ein Rohr (54) einstückig mit dem Luftspeicherbehälter (5) und an dem Zylinder (3) ausgebildet ist, wobei das Rohr (54) im Inneren eine Zusatzluftkammer (541) definiert, die mit einem Innenraum (33) des Zylinders (3) in Verbindung steht, aber nicht mit einem Innenraum (51) des Luftspeicherbehälters (5) in Verbindung steht, wobei, wenn der Kolbenkörper (25) den oberen Totpunkt erreicht, ein Kopf (26) des Kolbenkörpers (25) beinahe eine obere Wand (31) des Zylinders (3) berührt, wobei ein Teil der in dem Zylinder (3) erzeugten Druckluft in die Zusatzluftkammer (541) strömt, sodass der Kolbenkörper (25) die Abwärtshübe reibungsloser ausführen kann und die Druckluft daran gehindert wird, einen für einen aufzupumpenden Gegenstand festgelegten Sicherheitsdruck zu übersteigen, ohne ein mechanisches Sicherheitsventil zu verwenden.
  2. Luftkompressor nach Anspruch 1, welcher ferner dadurch gekennzeichnet ist, dass das Gehäuse (1) mit einem Knopf (12) versehen ist, wobei einer der Auslässe (52, 53, 55) mit einem Überdruckventil (7) verbunden ist, welches eine hohle weiche Kappe (71) mit einer Spitze (711) und einen ringförmigen Abschnitt umfasst, der an seiner Außenfläche mit mehreren beabstandeten Vorsprüngen (712) versehen ist, wobei zwischen zwei benachbarten Vorsprüngen (712) ein Spalt (713) ausgebildet ist, wobei eine Befestigungsschraube (72) vorgesehen ist, wobei ein zentrales Durchgangsloch (722) ausgebildet ist, das sich von einer Öffnung (721) an einem Ende der Befestigungsschraube (72) erstreckt, wobei das zentrale Durchgangsloch (722) der Befestigungsschraube (72) einen Durchmesser hat, der kleiner als die Öffnung (721) der Befestigungsschraube (72) ist, wobei die weiche Kappe (71) in dem Auslass montiert ist, der mit dem Überdruckventil (7) verbunden ist, wobei die Befestigungsschraube (72) derart in dem Auslass montiert ist, der mit dem Überdruckventil (7) verbunden ist, dass sich ein entgegengesetztes Ende der Befestigungsschraube (72) in der Nähe der weichen Kappe (71) befindet, wobei der ringförmige Abschnitt der weichen Kappe (71) mit einer Innenfläche des mit dem Überdruckventil (7) verbundenen Auslasses in Eingriff steht, wobei sich die Spitze (711) der weichen Kappe (71) in der Nähe des entgegengesetzten Endes der Befestigungsschraube (72) befindet, und wobei ein Druckstab (121) des Knopfs (12) durch das zentrale Durchgangsloch (722) der Befestigungsschraube (72) gesteckt ist, um die Spitze (711) der weichen Kappe (71) zu berühren, wobei der Knopf (12) gedrückt werden kann, um zu ermöglichen, dass dessen Druckstab (121) die weiche Kappe (71) zusammendrückt und somit die weiche Kappe (71) verformt, sodass überschüssige Luft in einem aufzupumpenden Gegenstand durch die Spalte (713) der weichen Kappe (71) und das zentrale Durchgangsloch (722) der Befestigungsschraube (72) strömen kann, um in die umliegende Umwelt entlassen zu werden.
  3. Luftkompressor nach Anspruch 1, welcher ferner dadurch gekennzeichnet ist, dass eine Einstellschraube (8) durch Verschrauben in dem Rohr (54) montiert ist, um die Zusatzluftkammer (541) zu definieren, wobei das Volumen der Zusatzluftkammer (541) durch Drehen der Einstellschraube (8) angepasst werden kann.
  4. Luftkompressor nach Anspruch 1, welcher ferner dadurch gekennzeichnet ist, dass ein Boden (50) des Luftspeicherbehälters (5) mit der oberen Wand (31) des Zylinders (3) verbunden ist, wobei die obere Wand (31) ein Hauptausgangsloch (32) aufweist, das ermöglicht, dass der Innenraum (33) des Zylinders (3) mit dem Innenraum (51) des Luftspeicherbehälters (5) kommuniziert, wobei ein Stopfen (41) an dem Hauptausgangsloch (32) der oberen Wand (31) angeordnet ist, wobei eine rechteckige obere Abdeckung (6) vorgesehen ist, die an ihrer Außenfläche einen Drehgriff (61) aufweist und sich eine Mittelsäule (62) von deren Innenfläche erstreckt, wobei die Mittelsäule (62) einen Basisabschnitt und einen sich von dem Basisabschnitt erstreckenden reduzierten Abschnitt (64) aufweist, wobei eine Stufe (63) zwischen dem Basisabschnitt und dem reduzierten Abschnitt (64) ausgebildet ist, wobei der Basisabschnitt der Mittelsäule (62) mit einer Mehrzahl von ringförmigen Vorsprüngen (621) versehen ist und eine Mehrzahl von ringförmigen Rillen (622) an seiner Außenfläche definiert, wobei eine Mehrzahl von Dichtungsringen (65) in den ringförmigen Rillen (622) der Mittelsäule (62) angebracht ist, wobei die obere Abdeckung (6) durch Drehen des Drehgriffs (61) mit dem Luftspeicherbehälter (5) gekoppelt wird, um den Luftspeicherbehälter (5) dicht zu verschließen, wobei ein Ende einer Kompressionsfeder (42) mit dem Stopfen (41) in Eingriff steht, und wobei ein entgegengesetztes Ende der Kompressionsfeder (42) mit dem untersten der ringförmigen Vorsprünge (621) der Mittelsäule (62) in Eingriff steht.
EP13874544.3A 2013-02-07 2013-02-07 Luftkompressorvorrichtung Active EP2955381B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
HUE13874544A HUE037832T2 (hu) 2013-02-07 2013-02-07 Légkompresszor berendezés
PL13874544T PL2955381T3 (pl) 2013-02-07 2013-02-07 Urządzenie sprężarki powietrza

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/071532 WO2014121497A1 (zh) 2013-02-07 2013-02-07 一种空气压缩机装置

Publications (3)

Publication Number Publication Date
EP2955381A1 EP2955381A1 (de) 2015-12-16
EP2955381A4 EP2955381A4 (de) 2016-11-02
EP2955381B1 true EP2955381B1 (de) 2018-01-10

Family

ID=51299204

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13874544.3A Active EP2955381B1 (de) 2013-02-07 2013-02-07 Luftkompressorvorrichtung

Country Status (8)

Country Link
EP (1) EP2955381B1 (de)
JP (1) JP6169727B2 (de)
KR (1) KR101801627B1 (de)
CN (1) CN104903579B (de)
DK (1) DK2955381T3 (de)
HU (1) HUE037832T2 (de)
PL (1) PL2955381T3 (de)
WO (1) WO2014121497A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI626377B (zh) * 2016-02-26 2018-06-11 周文三 空氣壓縮機之汽缸出氣構造改良
CN111207055A (zh) * 2020-01-10 2020-05-29 浙江多加机电科技股份有限公司 一种低电压的可泄压充气泵装置

Family Cites Families (16)

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Publication number Priority date Publication date Assignee Title
US302978A (en) * 1884-08-05 Air-compressor
US2329401A (en) * 1941-10-01 1943-09-14 Ingersoll Rand Co Unloader for compressors
JPH0411286U (de) * 1990-05-21 1992-01-30
US5902097A (en) * 1997-05-19 1999-05-11 Wu; Scott Pumping device with a clamping nozzle for various valves
KR100248835B1 (ko) * 1997-11-15 2000-04-01 정몽규 라디에이터 캡
FR2793284B1 (fr) * 1999-05-05 2005-10-14 Renault Vehicules Ind Compresseur d'air a piston
BR0004859A (pt) * 2000-10-05 2002-05-07 Brasil Compressores Sa Dispositivo limitador de curso de pistão em compressor alternativo
US7462018B2 (en) 2002-08-12 2008-12-09 Wen San Chou Air compressor having stable configuration
CN100372711C (zh) * 2004-04-08 2008-03-05 周文三 小型空气充填装置
JP4420740B2 (ja) * 2004-05-27 2010-02-24 株式会社ブリヂストン ポンプアップ装置
US7240642B2 (en) * 2005-08-16 2007-07-10 Wen San Chou Air compressor having changeable structure
US20070098583A1 (en) * 2005-08-23 2007-05-03 Chou Wen S Air compressor having detachable structure
DE102008057826A1 (de) * 2008-11-18 2010-06-02 Jhou, Wen-San, An-Din Luftkompressions-Baueinheit
TWI430899B (zh) * 2010-03-10 2014-03-21 Wen San Chou 可充氣及修補輪胎之空壓機
CN102465860B (zh) * 2010-11-09 2015-11-25 周文三 一种空气压缩机
JP5438702B2 (ja) * 2011-02-17 2014-03-12 住友ゴム工業株式会社 コンプレッサ装置

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
HUE037832T2 (hu) 2018-09-28
KR20150090227A (ko) 2015-08-05
CN104903579A (zh) 2015-09-09
EP2955381A1 (de) 2015-12-16
WO2014121497A1 (zh) 2014-08-14
PL2955381T3 (pl) 2018-07-31
KR101801627B1 (ko) 2017-11-27
JP6169727B2 (ja) 2017-07-26
JP2016505115A (ja) 2016-02-18
EP2955381A4 (de) 2016-11-02
DK2955381T3 (en) 2018-04-23
CN104903579B (zh) 2017-05-31

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