GB2277966A - Air compressor. - Google Patents
Air compressor. Download PDFInfo
- Publication number
- GB2277966A GB2277966A GB9309927A GB9309927A GB2277966A GB 2277966 A GB2277966 A GB 2277966A GB 9309927 A GB9309927 A GB 9309927A GB 9309927 A GB9309927 A GB 9309927A GB 2277966 A GB2277966 A GB 2277966A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transmission gear
- motor
- gear
- crank member
- eccentric member
- 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.)
- Withdrawn
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 230000001052 transient effect Effects 0.000 abstract description 5
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/06—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means including spring- or weight-loaded lost-motion devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
A mini-type air compressor includes a motor (1) having a driving gear (11), a fixed housing (2) defining a compression cylinder (23) and providing a support for the motor, a transmission gear (3) meshed with the driving gear (11) and a crank member (5) for reciprocating a piston (57) in the cylinder (23). The crank member (5) has a shaft (50) on which the transmission gear (3) is journalled, an enlarged portion (30) of the latter abutting a flank of the crank member to transmit the drive. The drive is such that during starting the transmission gear must rotate through a certain distance before the portion (30) contacts and drives the crank member, a spring (4) mounted between the transmission gear and the crank member ensuring that at start-up the position (10) is not in driving contact with the crank member. Thus the driving motor (1) is not subject to a large transient current during starting. <IMAGE>
Description
TITLE: A MINI-TYPE AIR COMPRESSOR
This invention relates to an improved mini-type air compressor.
It has been found that the prior art mini-type air compressor on the market utilizes a motor to drive a piston to compress air. However, when the compressor is turned on, the motor will immediately drive the piston to reciprocate in a cylinder thereby producing a relatively large transient current through the motor and therefore shortening its working life.
Therefore, it is an object of the present invention to provide an improved mini-type air compressor which may obviate and mitigate the above-mentioned drawbacks.
This invention relates to an improved mini-type air compressor.
It is the primary object of the present invention to provide a mini-type air compressor which may reduce the transient current through the motor when started.
It is another object of the present invention to provide a mini-type air compressor which may prevent the motor from being burnt down by the transient current.
It is still another object of the present invention to provide a mini-type air compressor which is durable in use.
It is still another object of the present invention to provide a mini-typed air compressor which is simple in construction.
It is a further object of the present invention to provide a mini-typed air compressor which is easy to manufacture.
Other objects and merits and a fuller understanding of the present invention will be obtained by those having ordinary skill in the art when the following detailed description of the preferred embodiment is read in conjunction with the accompanying drawings.
FIG. 1 is an exploded view of a mini-type air compressor according to the present invention;
FIG. 2 is a perspective view of the mini-type air compressor;
FIGS 3-8 show the working principle of the present invention.
With reference to the drawings and in particular to
FIG. 1 thereof, the mini air compressor according to the present invention mainly comprises a motor 1, a fixed seat 2, a transmission gear 3, a spring 4, and an eccentric block 5.
The motor 1 is provided with two threaded holes 10 on the housing and a driving axle connected with a driving gear 11.
The fixed seat 2 is provided with two threaded holes 20 in alignment with the threaded holes 10 of the motor 1, an opening 21 for the passage of the the driving gear 11, and a slot 22 under the opening 21. A cylinder 23 is mounted on the fixed seat 2 and connected to a nozzle 25 via a pipe 24. Further, the pipe 24 is connected with a pressure gauge 26 for measuring the pressure at a given point.
The transmission gear 3 has an enlarged threaded portion 30, a center hole 31 and a recess 32.
The spring 4 is mounted between the recess 32 of the transmission gear 3 and a recess 54 of the eccentric block 5.
The eccentric member 5 is provided with a shaft 50 with an annular groove 51 at the distal end for engaging with a retainer ring 52 so that the shaft 50 extends through the spring 4, the center hole 31 of the transmission gear 3, a sleeve 53, and the slot 22 of the fixed seat 2 to engage with the fixed seat 2. The eccentric member 5 is provided at one side with a recess 54 for receiving the spring 4 and at the other with a protuberance 55 for connecting with a linking rod 56 which is in turn connected with a piston 57.
In assembly, first pass the driving gear 11 of the motor 1 through the opening 21 of the fixed seat 2 and then fixedly mount the motor 1 on the fixed seat 2 by bolts engaged with the holes 20 of the fixed seat 2 and the holes 10 of the motor 1. Then, put the shaft 50 of the eccentric member 5 through the spring 4, the center hole 31 of the transmission gear 3, and the sleeve 53 to engage the retainer ring 52 with its annular groove 51 thereby joining the eccentric member 5 and the fixed seat 2 together. Thereafter, the two ends of the spring 4 are engaged with the recess 32 of the transmission gear 3 and the recess 54 of the eccentric member 5 so that the transmission gear 3 may be moved in unison with the eccentric member 5. The transmission gear 3 is meshed with the driving gear 11 of the motor 1.As the motor 1 is turned on, the driving gear 11 will drive the transmission gear 3 to rotate which will in turn rotate the shaft 50 thereby causing the piston 57 to reciprocate along the interior of the cylinder 23 via the linking rod 56 and the protuberance 55.
FIGS. 3, 4, 5, 6, 7 and 8 show the working principle of the present invention. As illustrated, when the motor 1 is turned on, the driving gear 11 will drive the transmission gear 3 to rotate through a certain distance before the enlarged threaded portion 30 of the transmission gear 3 contacts and pushes the eccentric member 5 to move in unison with the transmission gear 3 so that the piston 57 will reciprocate along the interior of the cylinder 23 via the linking rod 56 and the protuberance 55 thus producing compressed air and transmitting the compressed air to the nozzle 25 via the pipe 24. In the meantime, the pressure gauge 26 will show the pressure of the compressed air.
As the motor 1 is turned off, the driving gear 1 will stop rotating and the eccentric member 5 will be pushed by the spring 4 to go to contact the other side of the enlarged threaded portion 30 of the transmission gear 3.
In conclusion, the transmission gear 3 will not drive the eccentric member 5 to rotate to acutate the piston 57 until its enlarged threaded portion 30 is in contact with the eccentric member 5 so that the transient current through the motor 1 will not be reduced thereby preventing the motor 1 from being burnt down and therefore prolonging the working life thereof.
Although the present invention has been described with a certain degree of particularity, it is understood that the present disclosure is made by way of example only and that numerous changes in the detail of construction and the combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as hereinafter claimed.
Claims (1)
- I CLAIM:1. A mini-type air compressor: a motor having a driving axle connected with a driving gear; a fixed seat on which is fixedly mounted said motor; a transmission gear having an enlarged threaded portion and meshed with the driving gear of said motor; a cylinder mounted on said fixed seat; an eccentric member provided with a shaft extending through said transmission gear to engage with said fixed seat so that one side of said eccentric member is spaced apart from the enlarged threaded portion of said transmision gear and said transmission gear must rotate through a certain distance before said side contacts and pushes said eccentric member to rotate, said eccentric member being connected via a linking rod with a piston disposed within said cylinder; and a spring mounted between said transmission gear and said eccentric member for pushing said eccentric gear to contact another side of the enlarged threaded portion of said transmission gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9309927A GB2277966A (en) | 1993-05-14 | 1993-05-14 | Air compressor. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9309927A GB2277966A (en) | 1993-05-14 | 1993-05-14 | Air compressor. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9309927D0 GB9309927D0 (en) | 1993-06-30 |
| GB2277966A true GB2277966A (en) | 1994-11-16 |
Family
ID=10735455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9309927A Withdrawn GB2277966A (en) | 1993-05-14 | 1993-05-14 | Air compressor. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2277966A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002057630A1 (en) * | 2001-01-17 | 2002-07-25 | Active Tools A/S | Air compressor unit |
| WO2006066597A1 (en) * | 2004-12-22 | 2006-06-29 | Active Tools A/S | A compression chamber unit and a method for forming such unit |
| WO2013104146A1 (en) * | 2012-01-09 | 2013-07-18 | 冠翔（香港）工业有限公司 | Inflating pump connector and inflating pump |
| EP2944815A3 (en) * | 2014-04-22 | 2015-12-23 | Wen-San Chou | Air compressor of weight-reduction type |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108050039A (en) * | 2017-11-30 | 2018-05-18 | 东莞瑞柯电子科技股份有限公司 | A kind of close-coupled movement for air pump |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4469473A (en) * | 1982-03-05 | 1984-09-04 | Sigma Tek Inc. | Reciprocating piston apparatus |
| US4551074A (en) * | 1981-10-01 | 1985-11-05 | Honda Giken Kogyo Kabushiki Kaisha | Air pump apparatus |
-
1993
- 1993-05-14 GB GB9309927A patent/GB2277966A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4551074A (en) * | 1981-10-01 | 1985-11-05 | Honda Giken Kogyo Kabushiki Kaisha | Air pump apparatus |
| US4469473A (en) * | 1982-03-05 | 1984-09-04 | Sigma Tek Inc. | Reciprocating piston apparatus |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002057630A1 (en) * | 2001-01-17 | 2002-07-25 | Active Tools A/S | Air compressor unit |
| WO2006066597A1 (en) * | 2004-12-22 | 2006-06-29 | Active Tools A/S | A compression chamber unit and a method for forming such unit |
| CN101087952B (en) * | 2004-12-22 | 2010-12-01 | 冠翔（香港）工业有限公司 | Compression chamber unit and method of forming such a unit |
| US7900550B2 (en) | 2004-12-22 | 2011-03-08 | Active Tools International (Hk) Ltd. | Compression chamber unit and a method for forming such unit |
| WO2013104146A1 (en) * | 2012-01-09 | 2013-07-18 | 冠翔（香港）工业有限公司 | Inflating pump connector and inflating pump |
| EP2944815A3 (en) * | 2014-04-22 | 2015-12-23 | Wen-San Chou | Air compressor of weight-reduction type |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9309927D0 (en) | 1993-06-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |