CN202991541U - Self-pressurization low pressure large flow air pump - Google Patents
Self-pressurization low pressure large flow air pump Download PDFInfo
- Publication number
- CN202991541U CN202991541U CN 201220620653 CN201220620653U CN202991541U CN 202991541 U CN202991541 U CN 202991541U CN 201220620653 CN201220620653 CN 201220620653 CN 201220620653 U CN201220620653 U CN 201220620653U CN 202991541 U CN202991541 U CN 202991541U
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- air
- fan blade
- pump housing
- pump
- low pressure
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Abstract
The utility model discloses a self-pressurization low pressure large flow air pump. Air feeding vanes and air discharging vanes are respectively arranged at the front end and the back end of a pump body. The back end of the pump body is sealed through a back cover, and a spiral air flow channel is arranged on the pump body. Air flow enters the air flow channel by means of the air feeding vanes, the air flow rotates in the air flow channel to form certain pressure and flows into an air pressure cavity formed between the back cover and the air discharging vanes through the air flow channel, the air discharging vanes rotate to enable air flow pressure in the air pressure cavity to be increased, and the air flow is delivered to an air discharging channel through air discharging ports of the air discharging vanes and delivered to the outside of an air discharging pump to be used. Pressure and flow of the discharging air of the air pump can be controlled by adjusting rotating speed of the air feeding vanes and the air discharging vanes. The air pump can achieve the pressurization process, simplifies structure, reduces size, can output low pressure large flow air, is convenient to use and has good use performance.
Description
Technical field
the utility model relates to a kind of from supercharging low pressure and mass flow air pump, relate in particular to a kind of on the sleep-respiratory machine from supercharging low pressure and mass flow air pump.
Background technique
pressure and flow are two important parameters of sleep-respiratory machine, and it affects the usability of respiratory machine to a certain extent.When development sleep-respiratory machine project, at first the problem that needs to solve is and searches out the air pump that a kind of pressure, flow all meet the performance requirement of respiratory machine, air pump is when meeting than the Essential Performance Requirements of low pressure, large flow, and air pump self should have less volume.In the market for the air pump on the sleep-respiratory machine, this " air pump of small volume low pressure and mass flow " more difficult finding, be not that volume is exactly greatly that throughput is little, or pressure do not reach the requirement of respiratory machine, this affects the usability of sleep-respiratory machine largely.
Summary of the invention
the purpose of this utility model is to provide that a kind of this air pump can form from supercharging from supercharging low pressure and mass flow air pump, the larger flow of output when lower pressure is provided, and it is simple in structure, and using effect is good.
for achieving the above object, the technical solution adopted in the utility model is: a kind of from supercharging low pressure and mass flow air pump, described air pump comprises the pump housing with hollow cavity, offer spiral helicine air-flow path on the circumferential side wall of the described pump housing, the two ends of described air-flow path stretch out respectively and run through the described pump housing before, rearward end, offer an outlet passageway on the circumferential side wall of the described pump housing, described outlet passageway is connected with described hollow cavity, be provided with motor in the described hollow cavity of the described pump housing, be connected with to transmission respectively the air inlet fan blade on two axial ends of described motor, the output fan blade, described air inlet fan blade is positioned at the front end of the described pump housing, the suction port of described air inlet fan blade and described air-flow path phase airflow connection, described output fan blade is positioned at the rear end of the described pump housing, the rear end of the described pump housing also is provided with a bonnet hermetically, described bonnet, form an atmospheric pressure cavity between described output fan blade, described atmospheric pressure cavity and described air-flow path phase airflow connection, the defeated air port of described output fan blade and described outlet passageway phase airflow connection.
preferably, offer the annular chamber extended vertically on the front end of the described pump housing, the described suction port of the oral area of described chamber and described air inlet fan blade is oppositely arranged, the bottom of described chamber and described air-flow path phase airflow connection.
preferably, the described pump housing is cylindrical shape, and described bonnet is the tubular of front opening, and described bonnet is ordinatedly by the outside perimembranous that be located in the described pump housing before backward, and the interior lateral circle surface of described bonnet fits tightly mutually with the outside circumference of the described pump housing.
further preferably, on the external circumferential sidewall of the described pump housing, offer helical groove, interior lateral circle surface and the described helical groove of described bonnet form described air-flow path.
still more preferably, also be provided with the atmospheric pressure cavity lid between described output fan blade and described bonnet, the exterior rim section of described atmospheric pressure cavity lid fits tightly mutually with the interior lateral circle surface of described bonnet, and described atmospheric pressure cavity Gai center also is provided with the air outlet consistent with described defeated air port.
preferably, the output shaft of described motor runs through two axial ends of described motor and extends to two ends respectively, and described air inlet fan blade, described output fan blade are arranged on to transmission on the forward and backward end of described output shaft respectively.
as a kind of concrete mode of execution, described motor is hall electric machine.
utilization due to technique scheme, the utility model compared with prior art has following advantages: of the present utility model a kind of from supercharging low pressure and mass flow air pump, wherein by the rear and front end at the pump housing, air inlet fan blade and output fan blade are set respectively, by bonnet, make pump housing rear end be sealing setting, and offer spiral helicine air-flow path on the pump housing, by the air inlet fan blade, air-flow is blasted in air-flow path, air-flow rotates to form certain pressure and flows into the atmospheric pressure cavity formed between bonnet and output fan blade through air-flow path in air-flow path, the rotation of output fan blade causes the stream pressure in this atmospheric pressure cavity to raise, this air-flow is delivered to outlet passageway and sends outside air pump and used through the defeated air port of output fan blade.Pressure and flow that rotating speed by adjusting air inlet fan blade and output fan blade can be exported gas to air pump are controlled, and itself can realize the process of supercharging this air pump, makes simplifying the structure of air pump, and volume also can reduce.This air pump can be exported the gas of low pressure and mass flow, and it is easy to use, has good usability.
The accompanying drawing explanation
the overall structure schematic diagram that accompanying drawing 1 is air pump of the present utility model;
the STRUCTURE DECOMPOSITION schematic diagram that accompanying drawing 2 is air pump of the present utility model;
the schematic rear view that accompanying drawing 3 is air pump of the present utility model;
accompanying drawing 4 is A-A section sectional structure schematic diagram in accompanying drawing 3;
accompanying drawing 5 is B-B section sectional structure schematic diagram in accompanying drawing 3;
accompanying drawing 6 is C-C section sectional structure schematic diagram in accompanying drawing 3.
Embodiment
below in conjunction with accompanying drawing and specific embodiment, the technical solution of the utility model is further elaborated.
referring to shown in Fig. 1～6 from supercharging low pressure and mass flow air pump, this air pump comprises the pump housing 1 with hollow cavity, offer spiral helicine air-flow path 11 on the circumferential side wall of this pump housing 1, one end of this air-flow path 11 extends forward and runs through the front end of the pump housing 1, and its other end extends back and runs through the rearward end of the pump housing 1.While arranging, the Hand of spiral of air-flow path 11 should be arranged along the sense of rotation that enters air-flow path 11 apoplexy, and like this, the air-flow of rotation can form certain stream pressure while rotating in air-flow path 11.The fore-and-aft direction here is that the direction entered according to gas defines, and the end that gas enters the pump housing 1 is front end, and its end opposite is rear end, that is the fore-and-aft direction of observer's sight line while observing Fig. 1, Fig. 2, wherein, the place ahead of sight line is front, after the rear of sight line is.Offer an outlet passageway 12 on the circumferential side wall of the pump housing 1, this outlet passageway 12 is connected with the hollow cavity of the pump housing 1, thereby the gas in the pump housing 1 is exported, be provided with motor 2 in the hollow cavity of the pump housing 1, be connected with to transmission respectively air inlet fan blade 3, output fan blade 4 on two axial ends of motor 2.Air inlet fan blade 3 is positioned at the front end of the pump housing 1, the suction port of air inlet fan blade 3 and air-flow path 11 phase airflow connections, output fan blade 4 is positioned at the rear end of the pump housing 1, also be provided with hermetically a bonnet 5 on the rear end of the pump housing 1, form an atmospheric pressure cavity 51 between bonnet 5, output fan blade 4, the end phase airflow connection of atmospheric pressure cavity 51 and air-flow path 11, the defeated air port and outlet passageway 12 phase airflow connections of output fan blade 4.Here, motor 2 can adopt hall electric machine, thereby conveniently the rotation status to motor output shaft is controlled, the output shaft of motor 2 can be set to run through vertically motor 2 and extend to two ends respectively, and air inlet fan blade 3, output fan blade 4 are arranged on to transmission respectively on the output shaft end at motor 2 two ends and realize common rotary work.
like this, during this air pump operation, motor 2 work drive air inlet fan blade 3,4 rotations of output fan blade, gas is entered by the suction port of air inlet fan blade 3, and send in air-flow path 11 through suction port, gas rotates and produces certain pressure and be admitted in atmospheric pressure cavity 51 in air-flow path 11, and the rotation of output fan blade 4 blasts the gas in atmospheric pressure cavity 51 the defeated air port of output fan blade 4 and enters in outlet passageway 12, and gas flows out the pump housing 1 through outlet passageway 12.Because the rearward end of the pump housing 1 is airtight setting, when 4 rotation of output fan blade, can in atmospheric pressure cavity 51 in its back-end, form higher pressure, increase the pressure of output gas flow.By controlling the rotating speed of motor 2, can be simultaneously to the rotational speed of air inlet fan blade 3, output fan blade 4, thereby control pressure and the flow of air pump to reach desired gas, its control procedure is simple and convenient.
shown in Fig. 2, Fig. 4, offer the annular chamber 13 extended vertically on the front end of the pump housing 1, the suction port of the oral area of chamber 13 and air inlet fan blade 3 is oppositely arranged, the bottom of chamber 13 with air-flow path 11 phase airflow connections, like this, while having air inlet fan blade 3 to blast air-flow, air-flow directly enters in chamber 13 through the suction port of air inlet fan blade 3, by chamber 13, be sent in air-flow path 11, setting can make the gas blasted by air inlet fan blade 3 all to flow in air-flow path 11 so again.
shown in Fig. 1～6, in the present embodiment, the pump housing 1 is cylindrical shape, bonnet 5 is the tubular of front opening, bonnet 5 is ordinatedly by the outside perimembranous that be located in the pump housing 1 before backward, the interior lateral circle surface of bonnet 5 fits tightly setting mutually with the outside circumference of the pump housing 1, has so just formed the sealing to the pump housing 1 rearward end.Offer helical groove on the external circumferential sidewall of the pump housing 1, interior lateral circle surface and the above-mentioned helical groove of bonnet 5 have just formed air-flow path 11, comparatively simple and convenient when the pump housing 1 production and processing like this.In the present embodiment, also be provided with atmospheric pressure cavity lid 6 between output fan blade 4 and bonnet 5, atmospheric pressure cavity lid 6 is arranged in bonnet 5 and the exterior rim section of atmospheric pressure cavity lid 6 fits tightly mutually with the interior lateral circle surface of bonnet 5, the center of atmospheric pressure cavity lid 6 also is provided with the air outlet consistent with the defeated air port of exporting fan blade 4, setting can be isolated atmospheric pressure cavity 51 and air-flow path 11 like this, guarantees that the air-flow that enters the pump housing 1 all screws in atmospheric pressure cavity 51 through spiral helicine air-flow path 11.Gas in atmospheric pressure cavity 51 flows in the defeated air port of exporting fan blade 4 and is admitted to outlet passageway 12 again through air outlet.
to sum up, of the present utility model a kind of from supercharging low pressure and mass flow air pump, wherein by the rear and front end at the pump housing 1, air inlet fan blade 3 and output fan blade 4 are set respectively, by bonnet 5, make the pump housing 1 rear end be sealing setting, and offer spiral helicine air-flow path 11 on the pump housing 1, by air inlet fan blade 3, air-flow is blasted in air-flow path 11, air-flow rotates to form certain pressure and flows into the atmospheric pressure cavity 51 formed between bonnet 5 and output fan blade 4 through air-flow path 11 in air- flow path 11, 4 rotations of output fan blade cause the stream pressure caused in this atmospheric pressure cavity 51 to raise, this air-flow is delivered to outlet passageway 12 and sends outside air pump and used through the defeated air port of output fan blade 4.Pressure and flow that rotating speed by adjusting air inlet fan blade 3 and output fan blade 4 can be exported gas to air pump are controlled, and itself can realize the process of supercharging this air pump, makes simplifying the structure of air pump, and volume also can reduce.This air pump can be exported the gas of low pressure and mass flow, and it is easy to use, has good usability.
above-described embodiment is only explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection domain of the present utility model.
Claims (7)
1. one kind from supercharging low pressure and mass flow air pump, it is characterized in that: described air pump comprises the pump housing with hollow cavity, offer spiral helicine air-flow path on the circumferential side wall of the described pump housing, the two ends of described air-flow path stretch out respectively and run through the described pump housing before, rearward end, offer an outlet passageway on the circumferential side wall of the described pump housing, described outlet passageway is connected with described hollow cavity, be provided with motor in the described hollow cavity of the described pump housing, be connected with to transmission respectively the air inlet fan blade on two axial ends of described motor, the output fan blade, described air inlet fan blade is positioned at the front end of the described pump housing, the suction port of described air inlet fan blade and described air-flow path phase airflow connection, described output fan blade is positioned at the rear end of the described pump housing, the rear end of the described pump housing also is provided with a bonnet hermetically, described bonnet, form an atmospheric pressure cavity between described output fan blade, described atmospheric pressure cavity and described air-flow path phase airflow connection, the defeated air port of described output fan blade and described outlet passageway phase airflow connection.
2. according to claim 1 a kind of from supercharging low pressure and mass flow air pump, it is characterized in that: offer the annular chamber extended vertically on the front end of the described pump housing, the described suction port of the oral area of described chamber and described air inlet fan blade is oppositely arranged, the bottom of described chamber and described air-flow path phase airflow connection.
3. according to claim 1 a kind of from supercharging low pressure and mass flow air pump, it is characterized in that: the described pump housing is cylindrical shape, described bonnet is the tubular of front opening, described bonnet is ordinatedly by the outside perimembranous that be located in the described pump housing before backward, and the interior lateral circle surface of described bonnet fits tightly mutually with the outside circumference of the described pump housing.
4. according to claim 3 a kind of from supercharging low pressure and mass flow air pump, it is characterized in that: offer helical groove on the external circumferential sidewall of the described pump housing, interior lateral circle surface and the described helical groove of described bonnet form described air-flow path.
5. according to claim 4 a kind of from supercharging low pressure and mass flow air pump, it is characterized in that: also be provided with the atmospheric pressure cavity lid between described output fan blade and described bonnet, the exterior rim section of described atmospheric pressure cavity lid fits tightly mutually with the interior lateral circle surface of described bonnet, and described atmospheric pressure cavity Gai center also is provided with the air outlet consistent with described defeated air port.
6. according to claim 1 a kind of from supercharging low pressure and mass flow air pump, it is characterized in that: the output shaft of described motor runs through two axial ends of described motor and extends to two ends respectively, and described air inlet fan blade, described output fan blade are arranged on to transmission on the forward and backward end of described output shaft respectively.
7. described a kind of from supercharging low pressure and mass flow air pump according to claim 1 or 6, it is characterized in that: described motor is hall electric machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220620653 CN202991541U (en) | 2012-11-21 | 2012-11-21 | Self-pressurization low pressure large flow air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220620653 CN202991541U (en) | 2012-11-21 | 2012-11-21 | Self-pressurization low pressure large flow air pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202991541U true CN202991541U (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220620653 Expired - Fee Related CN202991541U (en) | 2012-11-21 | 2012-11-21 | Self-pressurization low pressure large flow air pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202991541U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937101A (en) * | 2012-11-21 | 2013-02-20 | 王卫 | Self-pressured low-pressure large-flow air pump |
-
2012
- 2012-11-21 CN CN 201220620653 patent/CN202991541U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937101A (en) * | 2012-11-21 | 2013-02-20 | 王卫 | Self-pressured low-pressure large-flow air pump |
| CN102937101B (en) * | 2012-11-21 | 2015-05-06 | 王卫 | Self-pressured low-pressure large-flow air pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20191121 |
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| CF01 | Termination of patent right due to non-payment of annual fee |