CN201129286Y - Electromagnetic type low negative pressure vacuum pump - Google Patents
Electromagnetic type low negative pressure vacuum pump Download PDFInfo
- Publication number
- CN201129286Y CN201129286Y CNU2007200590822U CN200720059082U CN201129286Y CN 201129286 Y CN201129286 Y CN 201129286Y CN U2007200590822 U CNU2007200590822 U CN U2007200590822U CN 200720059082 U CN200720059082 U CN 200720059082U CN 201129286 Y CN201129286 Y CN 201129286Y
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- China
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- piston
- way valve
- vacuum pump
- negative pressure
- movable
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- Expired - Fee Related
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model relates to an electromagnetic vacuum pump with low negative pressure, which comprises a seal housing, wherein an air inlet and an air outlet are respectively arranged on the front position and the rear position of the seal housing. The seal housing is composed of a cylinder body, a fixed check valve, a movable check valve, a piston and a solenoid coil, wherein the piston is positioned at the rear portion of the cylinder body, the corresponding solenoid coil is coiled outside the piston, the movable check valve is fixed at the front end of the piston, the fixed check valve is fixed on the front side of the cylinder body opposite to the air outlet and is arranged in a direction the same with that of the movable check valve. The electromagnetic vacuum pump has the advantages of simple structure, convenient mounting and dismounting, small volume, low cost, long service life and safety and environmental protection, which is particularly adapted for being used in a low pressure vacuum effect with 0-200 mmHg low vacuum negative pressure which is required by a health care instrument for human body, thereby guaranteeing safety of usage for human body.
Description
Technical field
The utility model relates to a kind of vacuum pump, is meant a kind of electromagnetic type lower negative pressure vacuum pump especially.
Background technique
Traditional vacuum pump has: one, screw vacuum pump, have do not have oily, simple in structure, do not have advantages such as easily damaged parts, maintenance load is little, the life-span is long, but shortcomings such as the situation lower volume that have that consumed power is big, the exhaust pulsation is big, air displacement and compression ratio is identical is big, so the difficult screw vacuum pump that is used for condition of high vacuum degree and big discharge capacity of uniform pitch molded lines.Two, motor vacuum pump has the mechanical bearing of use and speedup box to have complex structure, and noise and vibration are bigger, and volume is big and problem such as manufacture cost height.Above-mentioned two kinds of vacuum pumps can only be applicable to that generally the bigger machine of industry or pressure uses, therefore, develop a kind of simple in structure, volume is little, to use the vacuum pump of 0-200mmHg rough vacuum negative pressure be the market demand for low cost of manufacture, safety and environmental protection and suitable personal care device.
Summary of the invention
That the purpose of this utility model is to provide is simple in structure, easy accessibility, volume is little, with low cost, the life-span long and a kind of electromagnetic type lower negative pressure vacuum pump of safety and environmental protection.
The purpose of this utility model is achieved in that a kind of electromagnetic type lower negative pressure vacuum pump, comprise can, the front and rear portions of shell is respectively equipped with air inlet/outlet, wherein: be provided with cylinder body, fixedly one-way valve, movable one-way valve, piston and electromagnetic coil in the described shell, described piston is positioned at the rear portion of cylinder body, corresponding electromagnetic coil winding is in the piston outside, movable one-way valve is fixed on piston nose, and described fixedly one-way valve is fixed on the cylinder body front side relative with the air outlet and is provided with in the same way with movable one-way valve.
The above-mentioned described fixedly one-way valve of a kind of electromagnetic type lower negative pressure vacuum pump is made of rigidity positioning plate and soft laminated board, is provided with vent on the rigidity positioning plate, reaches unidirectional and gives vent to anger, the purpose of backward busy.
The above-mentioned described movable one-way valve of a kind of electromagnetic type lower negative pressure vacuum pump is made of rigidity positioning plate and soft laminated board, is provided with vent on the rigidity positioning plate.
The above-mentioned described piston of a kind of electromagnetic type lower negative pressure vacuum pump rear and front end is provided with the positioning section that extends along axis direction, and described movable one-way valve is fixed on the positioning section, and positioning section and positioning seat are pegged graft and be located by connecting.
The utility model promotes piston reciprocates owing to adopt said structure by adopting electromagnetic coil to produce alternating electromagnetic field behind the indirect current source, drives at the movable one-way valve of piston nose and does that promotion is closed, opens during pumpback.Meanwhile, fixedly one-way valve is done to promote with opening, closing the purpose that the outer gas of cylinder body is not refluxed during pumpback at movable one-way valve; Reach the purpose that to-and-fro motion constantly vacuumizes outside cylinder body.
The utlity model has simple in structure, easy accessibility, volume is little, with low cost, the life-span long and advantage such as safety and environmental protection, be particularly suitable for using low-voltage vacuum effect, guarantee the Security performance that human body uses in the required 0-200mmHg rough vacuum of personal care device negative pressure.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1 is shell, and 1a is a suction port, and 1b is the air outlet, and 2 is cylinder body, and 3 are fixing one-way valve, 4 is movable one-way valve, and 31,41 is rigidity positioning plate and soft laminated board, and 32,42 is soft laminated board, and 33,43 is vent, 5 is piston, and 51,52 is positioning section, and 6 is electromagnetic coil, and 7 is positioning seat.
Embodiment
As shown in Figure 1, a kind of electromagnetic type lower negative pressure vacuum pump, comprise can 1, the front and rear portions of shell 1 is respectively equipped with air inlet/outlet 1a, 1b, be provided with cylinder body 2, fixedly one-way valve 3, movable one-way valve 4, piston 5 and electromagnetic coil 6 in the shell 1, piston 5 is positioned at the rear portion of cylinder body 2, and corresponding electromagnetic coil 6 windings are in piston 5 outsides, movable one-way valve 4 is fixed on piston 5 front ends, and fixedly one-way valve 3 is fixed on cylinder body 2 front sides relative with air outlet 1b and is provided with in the same way with movable one-way valve 4; Fixedly one-way valve 3 is made of rigidity positioning plate 31 and soft laminated board 32, is provided with vent 33 on rigidity positioning plate 31; Movable one-way valve 4 is made of rigidity positioning plate 41 and soft laminated board 42, is provided with vent 43 on rigidity positioning plate 41; Piston 5 rear and front ends are provided with the positioning section 51,52 that extends along axis direction, and movable one-way valve 4 is fixed on the positioning section 51, positioning section 52 and positioning seat 7 socket connections.
When the utility model specifically uses, electromagnetic coil 6 produces alternating electromagnetic field promotion piston 5 behind the indirect current source reciprocating, drive does to promote motion at the movable one-way valve 4 of piston nose, the soft laminated board 42 of plastic cement is close to vent 43, its periphery and cylinder body 2 inner wall sealings that seal up rigidity positioning plate 41, promotes the gas interior with fixing 3 cylinder bodies of one-way valve 2.Meanwhile, in the same way the soft laminated board 42 plate faces of the plastic cement of the fixedly one-way valve 3 of She Zhiing and rigidity positioning plate 41, edges of boards and cylinder body 2 respectively from, gas enters outside the air outlet 1b discharge cylinder body 2 by vent 43, the soft laminated board 42 plate peripheries of plastic cement; Oppositely movable one-way valve 4 is opened during pumpback, and fixedly 3 on one-way valve is closed, the purpose that cylinder body 2 gases are not outward refluxed; Reach the purpose that to-and-fro motion constantly vacuumizes outside cylinder body 2.
Claims (4)
1. electromagnetic type lower negative pressure vacuum pump, comprise can (1), before the shell (1), the rear portion is respectively equipped with turnover gas (1a, 1b), it is characterized in that: be provided with cylinder body (2) in the described shell (1), fixing one-way valve (3), movable one-way valve (4), piston (5) and electromagnetic coil (6), described piston (5) is positioned at the rear portion of cylinder body (2), corresponding electromagnetic coil (6) winding is in piston (5) outside, movable one-way valve (4) is fixed on piston (5) front end, and described fixedly one-way valve (3) is fixed on cylinder body (2) front side relative with air outlet (1b), and be provided with in the same way with movable one-way valve (4).
2. a kind of electromagnetic type lower negative pressure vacuum pump according to claim 1 is characterized in that: described fixedly one-way valve (3) is made of rigidity positioning plate (31) and soft laminated board (32), is provided with vent (33) on rigidity positioning plate (31).
3. a kind of electromagnetic type lower negative pressure vacuum pump according to claim 1 is characterized in that: described movable one-way valve (4) is made of rigidity positioning plate (41) and soft laminated board (42), is provided with vent (43) on rigidity positioning plate (41).
4, a kind of electromagnetic type lower negative pressure vacuum pump according to claim 1, it is characterized in that: described piston (5) rear and front end is provided with the positioning section (51,52) that extends along axis direction, described movable one-way valve (4) is fixed on the positioning section (51), and positioning section (52) and positioning seat (7) are pegged graft and be located by connecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200590822U CN201129286Y (en) | 2007-11-01 | 2007-11-01 | Electromagnetic type low negative pressure vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200590822U CN201129286Y (en) | 2007-11-01 | 2007-11-01 | Electromagnetic type low negative pressure vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201129286Y true CN201129286Y (en) | 2008-10-08 |
Family
ID=40017128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200590822U Expired - Fee Related CN201129286Y (en) | 2007-11-01 | 2007-11-01 | Electromagnetic type low negative pressure vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201129286Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886624A (en) * | 2010-07-05 | 2010-11-17 | 苏州盟通利机电设备有限公司 | Vacuum pump without pressure difference |
-
2007
- 2007-11-01 CN CNU2007200590822U patent/CN201129286Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886624A (en) * | 2010-07-05 | 2010-11-17 | 苏州盟通利机电设备有限公司 | Vacuum pump without pressure difference |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081008 Termination date: 20121101 |