CN201705668U - Direct-current brushless gas sampling pump - Google Patents
Direct-current brushless gas sampling pump Download PDFInfo
- Publication number
- CN201705668U CN201705668U CN2010202212399U CN201020221239U CN201705668U CN 201705668 U CN201705668 U CN 201705668U CN 2010202212399 U CN2010202212399 U CN 2010202212399U CN 201020221239 U CN201020221239 U CN 201020221239U CN 201705668 U CN201705668 U CN 201705668U
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- pump
- rotor
- motor
- eccentric
- brush
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- Expired - Fee Related
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a direct-current brushless gas sampling pump, wherein a motor and an eccentric pump are fixedly connected to a fixing base, and the motor is connected with a shaft of the eccentric pump via a coupler. The direct-current brushless gas sampling pump is characterized in that the motor is a direct-current brushless motor, the eccentric pump comprises a pump body and a rotor, the pump body is provided with an air inlet and an air outlet, sealing end caps are fixedly arranged at two ends of the pump body, two ends of the rotor are respectively connected with the front and rear sealing end caps, the rotor is fixed in the eccentric pump body, and graphite scrapers are inserted in slots of the rotor. Flow rate of the sampling pump can be adjusted conveniently according to requirements, cost and maintenance of the sampling pump are reduced, and service life thereof is prolonged.
Description
Technical field
The utility model relates to a kind of brush DC sampling pump, and the sample collecting apparatus that a kind of specifically industrial gas are analyzed belongs to the environmental protection machinery field.
Background technique
Environmental analysis is used for the pollution condition of monitoring analysis sewage effluent, waste gas and chemical oxygen consumption (COC) etc., judges the pollution level of environment with this.People often need comprise the direct current sampling pump by various sampling pumps during collected specimens.
China's utility model patent 022695419 discloses a kind of water quality online analyzer submersible type sampling pump, and mainly by miniature immersible pump, dried up alarm probe, water sample pipeline, water sample cup and solenoid valve are formed.Chinese patent 2004200543048 discloses a kind of miniature air sampling pump, it is characterized in that being arranged on inlet hole and air outlet hole that coaxial line is all arranged on the upper and lower pump housing of pump housing seat top, the inlet hole port of upper pump casing is provided with air-intake valve plate, the air outlet hole port of lower pump body is provided with the valve block of giving vent to anger, the plane type elastomer diaphragm is pressed between lower pump body and the pump housing seat, between the bent axle of drive motion of membrane, the connecting rod miniature bearing is arranged, drive motor is a direct current micromotor.Though above-mentioned sampling pump respectively has characteristics, all there are some defectives, higher such as cost, maintenance is bigger, working life is short etc.
The model utility content
At the deficiency that prior art exists, technical problem to be solved in the utility model is, a kind of brush DC gas samping pump is provided, and makes sampling pump can adjust gas flow as required easily, and reduces cost and maintenance, increases the service life.
For solving the problems of the technologies described above, technical solution adopted in the utility model is, a kind of brush DC gas samping pump, and its motor and eccentric driven pump all are fixedly connected on the fixed base, and link together by the axle of shaft joint with motor and eccentric driven pump; Described motor is a dc brushless motor; Eccentric driven pump comprises the pump housing and rotor, has inlet hole and air outlet hole on the pump housing, and pump housing two ends are set with end cover, and two ends of rotor links to each other with the front and back end cover respectively, and rotor is fixed in the eccentric pump housing; The graphite scraping blade inserts in the groove of rotor.
Above-mentioned brush DC gas samping pump, its two ends of rotor is provided with stuffing box bearing, and rotor is connected with end cover by stuffing box bearing.
Above-mentioned brush DC gas samping pump, its rotor and graphite scraping blade are slidingly connected by groove.
Above-mentioned brush DC gas samping pump, end cover is fixedlyed connected with fixed base by screw with brushless electric machine thereafter.
Brush DC gas samping pump of the present utility model can be realized the control of flow size by the rotating speed that changes brushless electric machine, and its graphite scraping blade is hardness height, strong, the long service life of wear resistance not only, and can realize oil-free lubrication and self seal.This sampling pump can be adjusted flow as required easily, and reduces cost and maintenance, increases the service life.
Description of drawings
Below in conjunction with drawings and the specific embodiments the utility model is further described.
Fig. 1 is the structural representation of brush DC gas samping pump;
Fig. 2 is the sectional view of A-A part among Fig. 1.
Embodiment
As shown in Figure 1, this brush DC gas samping pump is made up of dc brushless motor 7 and eccentric driven pump, and the back end cover 4 of motor 7 and eccentric driven pump all is screwed and is connected on the fixed base 6, and links together by the axle of shaft joint 5 with motor 7 and eccentric driven pump; Eccentric driven pump comprises the pump housing 3 and rotor 2, end cover 1 and back end cover 4 before the rear and front end of the pump housing 3 is set with, end cover 1,4 is fixedlyed connected with the eccentric pump housing by screw, rotor 2 two ends are provided with stuffing box bearing, rotor 2 is connected with forward and backward end cover 1,4 respectively by stuffing box bearing, rotor 2 is fixed in the eccentric pump housing 3, guarantees that the rotation of the sealing of eccentric air chamber and rotor 2 is flexible.
As shown in Figure 2, graphite scraping blade 10 inserts in the groove of rotor 2, and can slide in the groove of rotor 2.Both sides, medial axis, the pump housing 3 upper edge have inlet hole 9 and air outlet hole 8.
Claims (4)
1. brush DC gas samping pump, its motor and eccentric driven pump all are fixedly connected on the fixed base, and shaft joint links together motor and eccentric driven pump; It is characterized in that: described motor is a dc brushless motor; Described eccentric driven pump comprises the pump housing and rotor, has inlet hole and air outlet hole on the pump housing, and pump housing two ends are set with end cover, and two ends of rotor links to each other with the front and back end cover respectively, and rotor is fixed in the eccentric pump housing; The graphite scraping blade inserts in the groove of rotor.
2. brush DC gas samping pump according to claim 1 is characterized in that: its two ends of rotor is provided with stuffing box bearing, and rotor is connected with end cover by stuffing box bearing.
3. brush DC gas samping pump according to claim 2 is characterized in that: its rotor and graphite scraping blade are slidingly connected by groove.
4. brush DC gas samping pump according to claim 3 is characterized in that: end cover is fixedlyed connected with fixed base by screw with brushless electric machine thereafter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202212399U CN201705668U (en) | 2010-06-10 | 2010-06-10 | Direct-current brushless gas sampling pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202212399U CN201705668U (en) | 2010-06-10 | 2010-06-10 | Direct-current brushless gas sampling pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201705668U true CN201705668U (en) | 2011-01-12 |
Family
ID=43442824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202212399U Expired - Fee Related CN201705668U (en) | 2010-06-10 | 2010-06-10 | Direct-current brushless gas sampling pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201705668U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821736A (en) * | 2013-01-31 | 2014-05-28 | 李虹杰 | Direct-current low-voltage outer-rotor typed brushless scraper pump |
| CN109296532A (en) * | 2018-12-14 | 2019-02-01 | 重庆工商大学 | Blade electronics aspiration pump |
| CN109340111A (en) * | 2018-09-06 | 2019-02-15 | 无锡晶晟科技股份有限公司 | A kind of leak detection air pump modular device |
| CN109406225A (en) * | 2018-12-12 | 2019-03-01 | 青岛海颐天仪器有限公司 | The vacuum sampling pump acquired for flue gas in atmosphere and particulate matter |
| CN109882410A (en) * | 2019-04-12 | 2019-06-14 | 重庆工商大学 | A kind of blade electronics aspiration pump |
-
2010
- 2010-06-10 CN CN2010202212399U patent/CN201705668U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821736A (en) * | 2013-01-31 | 2014-05-28 | 李虹杰 | Direct-current low-voltage outer-rotor typed brushless scraper pump |
| CN109340111A (en) * | 2018-09-06 | 2019-02-15 | 无锡晶晟科技股份有限公司 | A kind of leak detection air pump modular device |
| CN109406225A (en) * | 2018-12-12 | 2019-03-01 | 青岛海颐天仪器有限公司 | The vacuum sampling pump acquired for flue gas in atmosphere and particulate matter |
| CN109406225B (en) * | 2018-12-12 | 2024-04-26 | 青岛海颐天仪器有限公司 | Vacuum sampling pump for collecting smoke and particulate matters in atmosphere |
| CN109296532A (en) * | 2018-12-14 | 2019-02-01 | 重庆工商大学 | Blade electronics aspiration pump |
| CN109296532B (en) * | 2018-12-14 | 2024-01-26 | 重庆工商大学 | Electronic air pump with rotary vane |
| CN109882410A (en) * | 2019-04-12 | 2019-06-14 | 重庆工商大学 | A kind of blade electronics aspiration pump |
| CN109882410B (en) * | 2019-04-12 | 2024-01-30 | 重庆工商大学 | Electronic air pump with rotary vane |
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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: 20110112 Termination date: 20110610 |