CN101372957B - Anti-locked air pump - Google Patents
Anti-locked air pump Download PDFInfo
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- CN101372957B CN101372957B CN200710009409XA CN200710009409A CN101372957B CN 101372957 B CN101372957 B CN 101372957B CN 200710009409X A CN200710009409X A CN 200710009409XA CN 200710009409 A CN200710009409 A CN 200710009409A CN 101372957 B CN101372957 B CN 101372957B
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- middle base
- flexible sheet
- exhaust
- chamber
- air
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Abstract
An air pump which can be prevented from being locked comprises a casing body. A motor, an elastic membrane and a middle base are arranged in the casing body; an air chamber is formed between the elastic membrane and the middle base; the middle base is provided with a suction hole and an exhaust hole; a one-way suction valve plate and a one-way exhaust valve plate are respectively arranged on the suction hole and the exhaust hole; the outer side of the elastic membrane is connected with an output shaft of the motor through a connector, an eccentric shaft and an eccentric wheel; the casing body is provided with a suction connector and an exhaust connector which are correspondingly communicated with the suction hole and the exhaust hole of the middle base; and a pressure relief groove connected with the interior and the exterior of the air chamber is arranged on the edge of the middle base butted against the elastic membrane. Under the condition of normal operation, the pressure relief groove generates no influence or less influence on the suction and the exhaust of the air chamber; when the air chamber is in a locking state, the pressure relief groove is helpful for the pressure relief of the air chamber to relieve the locking state.
Description
Technical field
The present invention relates to a kind of air pump, be meant that specifically a kind of reaching through the improvement structure prevents stuck air pump.
Background technique
Air pump mainly comprises gas-filled pump and vacuum pump.Its structure and principle are: folder is established a flexible sheet between a middle base and housing, forms an air chamber between this flexible sheet and the middle base; Middle base is provided with suction port and the exhaust port that this air chamber is connected with the air chamber outside, and suction port and exhaust port are unidirectional, and in the opposite direction; Flexible sheet links to each other with the output shaft of a motor through a couple axle, an eccentric wheel, during motor operations, drives the flexible sheet knee-action through eccentric wheel, thereby makes air chamber air-breathing from suction port, from the exhaust port exhaust.
In above-mentioned air pump working procedure; When air chamber was accomplished an exhaust, flexible sheet and middle base were close to, and the air pressure outside the air chamber is greater than the air pressure in the air chamber; Flexible sheet is closely attached on the middle base by complete adhesive; This moment be if short time outage then the situation that motor can't drive the flexible sheet return motion possibly occur, and promptly this air pump is stuck and can't proper functioning.
In order to solve this technical problem, the claimant had once submitted the application for a patent for invention of subject name for " a kind of anti-locked vacuum pump " to State Intellectual Property Office, and had obtained mandate, and its patent No. is 200520080875.3.This scheme mainly is between suction port, exhaust port, to offer a groove at the inner side surface of middle base, and the two is communicated, and when air chamber was accomplished an exhaust, flexible sheet can be close on the middle base fully, is prone to stuck problem to solve vacuum pump.Through repeatedly practising discovery, the effect of this kind anti-sticking fast knot structure is not ideal.
Summary of the invention
The present invention provides a kind of anti-locked air pump, and its main purpose is to overcome that existing air pump is prone to stuck phenomenon in the course of the work and the defective that influences its proper functioning.
The present invention adopts following technological scheme: anti-locked air pump; Comprise a housing; Be provided with motor, flexible sheet and middle base in this housing; Form an air chamber between this shell fragment diaphragm and this middle base, this middle base is provided with suction port and exhaust port, is respectively equipped with one-way intake valve block and one-way exhaust valve sheet on suction port and the exhaust port; The flexible sheet outside is connected with the output shaft of motor through connecting head, eccentric shaft, eccentric wheel; Housing is provided with corresponding air-breathing joint and the exhaust joint that is connected of suction port, exhaust port with middle base; Said middle base is provided with the edge that flexible sheet connects and is connected the inside and outside gas pressure relief slot of air chamber.
Aforementioned anti-locked air pump, the edge that its middle base and flexible sheet connect is protruding to the flexible sheet direction, the intermediate portion depression, this protruding edge is provided with an annular groove, and the flexible sheet relevant position is provided with bulge loop with matching; Said gas pressure relief slot and this annular groove are staggered.
Further, said gas pressure relief slot is identical with the degree of depth of this annular groove.
In addition, first chamber and second chamber arranged about this housing forms, said motor is located in this first chamber, and the output shaft of motor penetrates in second chamber; This second chamber top is provided with an opening, and said flexible sheet is located on this opening, and said middle base is pressed and is located at this flexible sheet top, and the middle base top is provided with upper cover plate, and said air-breathing joint and exhaust joint are located on this upper cover plate.
Draw through above-mentioned description and claimant's repetition test structure of the present invention; Compare with existing technology; The present invention has following advantage: under the situation of proper functioning; This gas pressure relief slot does not exert an influence to the air-breathing exhaust of air chamber or influences lessly, and stuck dying during state occur when air pump, and this gas pressure relief slot helps the pressure release of air chamber and removes stuck state.
Description of drawings
Fig. 1 is a decomposition texture schematic representation of the present invention;
Fig. 2 is the perspective view of middle base of the present invention;
Fig. 3 is an A place partial enlarged drawing among Fig. 2;
Fig. 4 is the plan view of flexible sheet of the present invention.
Embodiment
Embodiment of the present invention is described with reference to the accompanying drawings.
With reference to Fig. 1, a kind of anti-locked air pump comprises a housing 1, and first chamber 11 and second chamber 12 arranged about this housing 1 forms are provided with motor 2 in this first chamber 11, and the output shaft 21 of motor 2 penetrates in second chamber 12.
These second chamber, 12 tops are provided with an opening 1200, and this opening 1200 is provided with a flexible sheet 3, and these flexible sheet 3 tops are pressed and are provided with a middle base 4, and the periphery of this flexible sheet 3 is located between this opening 1200 peripheries top and the middle base 4 peripheries below.Form an air chamber between shell fragment diaphragm 3 and this middle base 4, simultaneously with reference to Fig. 2, this middle base 4 is provided with the suction port 420 and exhaust port 410 that communicates with this air chamber, is respectively equipped with one-way intake valve block 42 and one-way exhaust valve sheet 41 on suction port 420 and the exhaust port 410.Flexible sheet 3 is to lower recess, and its bottom is provided with a connecting head 31, and this connecting head 31 is connected with the output shaft 21 of motor 2 through an eccentric shaft 23, eccentric wheel 22.
With reference to Fig. 2 and Fig. 3, said middle base 4 is protruding to flexible sheet 3 directions with the edge 40 that flexible sheet 3 connects, the intermediate portion depression, and said suction port 420 is located at this depression position with exhaust port 410.This protruding edge 40 is provided with the annular groove 401 of a circumferencial direction, and is provided with gas pressure relief slot 402 radially, and this gas pressure relief slot 402 can make between middle base 4 and the flexible sheet 3 and be interlinked to the outside in the air chamber.With reference to Fig. 4, flexible sheet 3 relevant positions are provided with the bulge loop 30 that matches with said annular groove 401, to reach sealing effect.This gas pressure relief slot 402 is staggered with this annular groove 401, and the degree of depth is identical.Under the situation of proper functioning, the air-breathing exhaust of 402 pairs of air chambers of this gas pressure relief slot does not exert an influence or influences lessly, and when stuck state appearred in air pump, this gas pressure relief slot 402 helped the pressure release of air chamber and removes stuck state.
Middle base 4 tops are provided with upper cover plate 5, and this upper cover plate 5 is provided with suction port 420, exhaust port 410 corresponding air-breathing joint 52 that is connected and the exhaust joints 51 with middle base 4.Be provided with between middle base 4 and the upper cover plate 5 and make suction port 420 and exhaust port 410 and air-breathing joint 52 and the exhaust joint 51 mutual seal rings of separating 6.
Housing 1 leans on the sidewall of said second chamber, 12 1 sides and offers an installation opening 120, and the lateral margin of upper cover plate 5 is provided with the side cover plate 53 that is covered on this installation opening 120.This side cover plate 53 and said installation opening 120 both sides are through groove 531 and tenon 121 location that is slidingly matched.
During assembling, earlier motor 2 is put into first chamber 11 of housing 1 from right side shown in Figure 1, and its output shaft 21 is penetrated left in second chamber 12, eccentric wheel 22, eccentric shaft 23 are connected with output shaft 21 assemblings of motor 2 at second chamber 12; Then, flexible sheet 3 is placed on the opening 1200, and is socketed on the eccentric shaft 23 through the connecting head 31 of installation opening 120 with flexible sheet 3; Above flexible sheet 3, assemble middle base 4, seal ring 6 and upper cover plate 5 then successively, when fit on cover plate 5, its side cover plate 53 is assemblied on the installation opening 120 from top to bottom.
During this air pump work, the output shaft 21 of motor 2 drives eccentric shaft 23 through eccentric wheel 22 and rotates, and connecting head 31 is up and down reciprocatingly moved, and then make flexible sheet 3 do the action of loop compression and stretching.When flexible sheet 3 compressions, exhaust valve plate 41 upwards makes exhaust port 410 open, and suction valve chip 42 upwards makes suction port 420 close, and the gas in the air chamber is discharged through exhaust port 410, exhaust joint 51; When flexible sheet 3 stretched, exhaust valve plate 41 made exhaust port 410 close downwards, and suction valve chip 42 makes suction port 420 open downwards, and the gas in the air chamber sucks in the air chambers through air-breathing joint 52, suction port 420.So circulation realizes vacuumizing or inflating.
Above-mentionedly be merely specific embodiment of the present invention, but design concept of the present invention is not limited thereto, allly utilizes this design that the present invention is carried out the change of unsubstantiality, all should belong to the behavior of invading protection domain of the present invention.
Claims (2)
1. anti-locked air pump; Comprise a housing, be provided with motor, flexible sheet and middle base in this housing, form an air chamber between this flexible sheet and this middle base; This middle base is provided with suction port and exhaust port, is respectively equipped with one-way intake valve block and one-way exhaust valve sheet on suction port and the exhaust port; The flexible sheet outside is connected with the output shaft of motor through connecting head, eccentric shaft, eccentric wheel; Housing is provided with corresponding air-breathing joint and the exhaust joint that is connected of suction port, exhaust port with middle base; It is characterized in that: said middle base is provided with the edge that flexible sheet connects and is connected the inside and outside gas pressure relief slot of air chamber; The edge that said middle base and flexible sheet connect is protruding to the flexible sheet direction; The intermediate portion depression; This protruding edge is provided with an annular groove, and the flexible sheet relevant position is provided with bulge loop with matching; Said gas pressure relief slot and this annular groove are staggered, and said gas pressure relief slot is identical with the degree of depth of this annular groove.
2. anti-locked air pump as claimed in claim 1 is characterized in that: first chamber and second chamber arranged about this housing forms, and said motor is located in this first chamber, and the output shaft of motor penetrates in second chamber; This second chamber top is provided with an opening, and said flexible sheet is located on this opening, and said middle base is pressed and is located at this flexible sheet top, and the middle base top is provided with cover plate, and said air-breathing joint and exhaust joint are located on this upper cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710009409XA CN101372957B (en) | 2007-08-24 | 2007-08-24 | Anti-locked air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710009409XA CN101372957B (en) | 2007-08-24 | 2007-08-24 | Anti-locked air pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101372957A CN101372957A (en) | 2009-02-25 |
| CN101372957B true CN101372957B (en) | 2012-06-20 |
Family
ID=40447279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710009409XA Active CN101372957B (en) | 2007-08-24 | 2007-08-24 | Anti-locked air pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101372957B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4647718B1 (en) * | 2010-07-07 | 2011-03-09 | 千代田空調機器株式会社 | Valve device |
| CN110274086A (en) * | 2019-06-28 | 2019-09-24 | 上海阀门五厂有限公司 | One kind is from release diaphragm assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2426550Y (en) * | 2000-04-13 | 2001-04-11 | 刘庆 | Auto-control valve for deep well pump |
| US6796215B1 (en) * | 1999-08-26 | 2004-09-28 | Knf Neuberger Gmbh | Membrane pump |
| CN1724868A (en) * | 2005-07-14 | 2006-01-25 | 杭州大潮石化设备有限公司 | Internal circulation pressure balance ultra high pressure hydralic diaphram type metering pump |
| US20060198740A1 (en) * | 2005-03-01 | 2006-09-07 | Shinya Yamamoto | Diaphragm pump |
| CN1831334A (en) * | 2005-03-10 | 2006-09-13 | 张坤林 | Vacuum pump capable of block |
| CN201096078Y (en) * | 2007-08-13 | 2008-08-06 | 张坤林 | Air pump capable of preventing choking |
-
2007
- 2007-08-24 CN CN200710009409XA patent/CN101372957B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6796215B1 (en) * | 1999-08-26 | 2004-09-28 | Knf Neuberger Gmbh | Membrane pump |
| CN2426550Y (en) * | 2000-04-13 | 2001-04-11 | 刘庆 | Auto-control valve for deep well pump |
| US20060198740A1 (en) * | 2005-03-01 | 2006-09-07 | Shinya Yamamoto | Diaphragm pump |
| CN1831334A (en) * | 2005-03-10 | 2006-09-13 | 张坤林 | Vacuum pump capable of block |
| CN1724868A (en) * | 2005-07-14 | 2006-01-25 | 杭州大潮石化设备有限公司 | Internal circulation pressure balance ultra high pressure hydralic diaphram type metering pump |
| CN201096078Y (en) * | 2007-08-13 | 2008-08-06 | 张坤林 | Air pump capable of preventing choking |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101372957A (en) | 2009-02-25 |
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