EP2955381B1 - Appareil du type compresseur d'air - Google Patents
Appareil du type compresseur d'air Download PDFInfo
- 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
- Authority
- 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
Links
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 230000033001 locomotion Effects 0.000 claims description 5
- 230000000994 depressogenic effect Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
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.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Compressor (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Claims (4)
- Compresseur d'air incluant un boîtier (1) et une unité à compresseur électriquement actionnée installée dans le boîtier (1), dans lequel un moteur (21) entraîne un corps de piston (25) pour réaliser un mouvement en va-et-vient dans un cylindre (3) pour produire de l'air comprimé, qui est transféré dans un contenant de stockage d'air (5) pourvu d'une pluralité de sorties (52, 53, 55); le compresseur d'air étant caractérisé en ce que: un tube (54) est formé de façon monobloc avec le contenant de stockage d'air (5) et sur le cylindre (3), dans lequel le tube (54) définit dans celui-ci une chambre d'air auxiliaire (541) communiquant avec un espace intérieur (33) du cylindre (3) mais ne communiquant pas avec un espace intérieur (51) du contenant de stockage d'air (5); lorsque le corps de piston (25) atteint le point mort haut, une tête (26) du corps de piston (25) entre presqu'en contact avec une paroi supérieure (31) du cylindre (3), moyennant quoi une partie de l'air comprimé produit dans le cylindre (3) s'écoule dans la chambre d'air auxiliaire (541), pour que le corps de piston (25) puisse réaliser des courses descendantes plus facilement, et l'air comprimé puisse être empêché d'excéder une pression de sécurité définie pour un objet destiné à être gonflé, sans utiliser de soupape de sécurité mécanique.
- Compresseur d'air selon la revendication 1, caractérisé en outre en ce que : le boîtier (1) est pourvu d'un bouton (12); une des sorties (52, 53, 55) est raccordée avec une soupape de détente (7), qui inclut un chapeau souple creux (71) possédant un embout (711) et une portion annulaire pourvue de multiples protubérances espacées (712) à sa surface extérieure, entre deux protubérances adjacentes (712) définissant un écart (713); un boulon de montage (72) définissant un trou débouchant central (722) s'étendant à partir d'une ouverture (721) à une extrémité du boulon de montage (72), le trou débouchant central (722) du boulon de montage (72) possédant un diamètre plus petit que l'ouverture (721) du boulon de montage (72), dans lequel le chapeau souple (71) est ajusté dans la sortie qui raccorde la soupape de détente (7), le boulon de montage (72) est ajusté dans la sortie qui raccorde la soupape de détente (7) pour posséder une extrémité opposée du boulon de montage (72) située près du chapeau souple (71), la portion annulaire du chapeau souple (71) est en prise avec une surface intérieure de la sortie qui raccorde la soupape de détente (7), l'embout (711) du chapeau souple (71) est situé près de l'extrémité opposée du boulon de montage (72), et une barre de poussée (121) du bouton (12) est insérée à travers le trou débouchant central (722) du boulon de montage (72) pour toucher l'embout (711) du chapeau souple (71); moyennant quoi il est possible d'appuyer sur le bouton (12) pour permettre à sa barre de poussée (121) de comprimer le chapeau souple (71) et ainsi déformer le chapeau souple (71), pour qu'un excès d'air dans un objet destiné à être gonflé puisse s'écouler à travers les écarts (713) du chapeau souple (71) et du trou débouchant central (722) du bouton de montage (72) pour être libéré dans l'environnement ambiant.
- Compresseur d'air selon la revendication 1, caractérisé en outre en ce que: un boulon de réglage (8) est ajusté de façon fileté dans le tube (54) pour définir la chambre d'air auxiliaire (541), le volume de la chambre d'air auxiliaire (541) étant réglé en tournant le boulon d'ajustage (8).
- Compresseur d'air selon la revendication 1, caractérisé en outre en ce que: un fond (50) du contenant de stockage d'air (5) est joint à la paroi supérieure (31) du cylindre (3), la paroi supérieure (31) définissant un trou de sortie principal (32) qui permet à l'espace intérieur (33) du cylindre (3) de communiquer avec l'espace intérieur (51) du contenant de stockage d'air (5) ; un bouchon (41) est placé sur le trou de sortie principal (32) de la paroi supérieure (31); un couvercle supérieur rectangulaire (6) possède une poignée rotative (61) sur sa surface extérieure et une colonne centrale (62) s'étendant à partir de sa surface intérieure, la colonne centrale (62) possédant une portion de base et une portion réduite (64) s'étendant à partir de la portion de base, dans lequel un épaulement (63) est formé entre la portion de base et la portion réduite (64), la portion de base de la colonne centrale (62) étant pourvue d'une pluralité de protubérances annulaires (621) et définit une pluralité de rainures annulaires (622) sur sa surface extérieure ; une pluralité de bagues d'étanchéité (65) sont ajustées dans la rainure annulaires (622) de la colonne centrale (62) ; le couvercle supérieur (6) est accouplé au contenant de stockage d'air (6) en tournant la poignée rotative (61) pour rendre étanche le contenant de stockage d'air (6) ; une extrémité d'un ressort de compression (42) est en prise avec le bouchon (41), et une extrémité opposée du ressort de compression (42) est en prise avec une protubérance annulaire la plus basse parmi les protubérances annulaires (621) de la colonne centrale (62).
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 (fr) | 2013-02-07 | 2013-02-07 | Appareil du type compresseur d'air |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2955381A1 EP2955381A1 (fr) | 2015-12-16 |
EP2955381A4 EP2955381A4 (fr) | 2016-11-02 |
EP2955381B1 true EP2955381B1 (fr) | 2018-01-10 |
Family
ID=51299204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13874544.3A Active EP2955381B1 (fr) | 2013-02-07 | 2013-02-07 | Appareil du type compresseur d'air |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP2955381B1 (fr) |
JP (1) | JP6169727B2 (fr) |
KR (1) | KR101801627B1 (fr) |
CN (1) | CN104903579B (fr) |
DK (1) | DK2955381T3 (fr) |
HU (1) | HUE037832T2 (fr) |
PL (1) | PL2955381T3 (fr) |
WO (1) | WO2014121497A1 (fr) |
Families Citing this family (2)
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)
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 (fr) * | 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 |
-
2013
- 2013-02-07 WO PCT/CN2013/071532 patent/WO2014121497A1/fr active Application Filing
- 2013-02-07 JP JP2015555532A patent/JP6169727B2/ja active Active
- 2013-02-07 HU HUE13874544A patent/HUE037832T2/hu unknown
- 2013-02-07 EP EP13874544.3A patent/EP2955381B1/fr active Active
- 2013-02-07 KR KR1020157017326A patent/KR101801627B1/ko active IP Right Grant
- 2013-02-07 PL PL13874544T patent/PL2955381T3/pl unknown
- 2013-02-07 CN CN201380069838.XA patent/CN104903579B/zh active Active
- 2013-02-07 DK DK13874544.3T patent/DK2955381T3/en active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
JP6169727B2 (ja) | 2017-07-26 |
DK2955381T3 (en) | 2018-04-23 |
EP2955381A1 (fr) | 2015-12-16 |
WO2014121497A1 (fr) | 2014-08-14 |
EP2955381A4 (fr) | 2016-11-02 |
PL2955381T3 (pl) | 2018-07-31 |
KR101801627B1 (ko) | 2017-11-27 |
HUE037832T2 (hu) | 2018-09-28 |
CN104903579A (zh) | 2015-09-09 |
KR20150090227A (ko) | 2015-08-05 |
CN104903579B (zh) | 2017-05-31 |
JP2016505115A (ja) | 2016-02-18 |
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