CN102678529A - Miniature air pump and electronic manometer - Google Patents
Miniature air pump and electronic manometer Download PDFInfo
- Publication number
- CN102678529A CN102678529A CN2012101886542A CN201210188654A CN102678529A CN 102678529 A CN102678529 A CN 102678529A CN 2012101886542 A CN2012101886542 A CN 2012101886542A CN 201210188654 A CN201210188654 A CN 201210188654A CN 102678529 A CN102678529 A CN 102678529A
- Authority
- CN
- China
- Prior art keywords
- air pump
- cam slide
- micro air
- drive portion
- output shaft
- 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.)
- Granted
Links
- 230000033001 locomotion Effects 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims description 6
- 210000003205 muscle Anatomy 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- DHKHKXVYLBGOIT-UHFFFAOYSA-N 1,1-Diethoxyethane Chemical compound CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 claims description 3
- 239000011354 acetal resin Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000036772 blood pressure Effects 0.000 claims description 3
- 238000009530 blood pressure measurement Methods 0.000 claims description 3
- 229920006324 polyoxymethylene Polymers 0.000 claims description 3
- 238000012546 transfer Methods 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 9
- 238000012545 processing Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009740 moulding (composite fabrication) Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The invention provides a miniature air pump, which comprises a motor, a shell, an upper cover, a diaphragm part and a driving part, wherein the top of the driving part is in fit with the bottom of the diaphragm part; the driving part is driven by an output shaft of the motor to do reciprocating linear motion and is formed by connecting an upper cam sliding block and a lower cam sliding block fixedly; the upper cam sliding block and the lower cam sliding block are buckled to form an annular groove on the inner wall; at least one guide rail rib is arranged on the outer wall of the driving part; at least one guide groove in which the guide rail rib slides is correspondingly formed on the inner wall of the shell; a metal head is fixedly arranged on the output shaft of the motor, is clamped with the annular groove and drives the driving part to do reciprocating linear motion along the guide groove in direction of the axis of the output shaft along with the rotation of the output shaft of the motor. Due to the adoption of the structure, the size of the output shaft in the radial direction can be reduced effectively, the integral size of the pump is reduced, the miniaturized size of the pump is realized, and the high-efficiency transfer of power is ensured.
Description
Technical field
The present invention relates to a kind of pump, particularly relate to a kind of micro air pump and use the electronic sphygmomanometer of this micro air pump.
Background technique
Main small air pump is the rocking arm type rubber diaphrgam pump on the existing market, and the live axle that is fixed on the eccentric wheel through inclination drives the drive portion swing, makes barrier film produce distortion, thereby air is sucked/discharges.Though this kind air pump has its advantage, adopt rocker style configuration to exist the size of electric machine rotational axis line orthogonal direction to increase, be difficult to realize the integral miniaturization of pump.
And reach following domestic client terminal now is to take direction as the leading factor with light, portable, exquisiteness, and above structure can not be met the need of market.
This structure transmission efficiency is lower simultaneously, and barrier film is produced a little less than the power of distortion, is difficult to improve the suction ability of air-flow.
Summary of the invention
The technical problem that the present invention will solve is to overcome the above-mentioned defective that known technology exists, and has overcome that micro air pump is extra small, the technical bottleneck of ultra-thinization, and a kind of micro air pump is provided; And realize that flow of aerating air is controlled; Make the micro air pump diversification of varieties, when satisfying miniaturization, solve the problem that in little space, realizes effective transmission, realize the inflation pressurization function of pump; Realize easy to assembly, technology is simple and direct, convenient debugging and guarantee the processing conformity.
The present invention realizes through following technological scheme; According to a kind of micro air pump provided by the invention, comprise motor, housing, the loam cake that is provided with the air outlet, diaphragm portion, the drive portion that link to each other with housing, said drive portion top is applying bottom diaphragm portion; And through hole is set on drive portion; The diaphragm portion correspondence in this through hole outlet port is provided with suction valve, and said drive portion is done linear reciprocating motion under the drive of motor output shaft, makes diaphragm portion produce distortion; Realize suction, the discharge of gas; Wherein, described drive portion is by overhead cam slide block and affixed formation of following cam slide two-part body, and this overhead cam slide block fastens the back with following cam slide and forms annular groove in inwall; Said drive portion outer wall is provided with at least one guide rail muscle; At least one guiding groove that can supply the guide rail muscle to slide within it of said inner walls relative set is fixed with a ferrule on the output shaft of said motor, this ferrule engages with said annular groove and follows the rotation drive drive portion of motor output shaft on the output shaft axial direction, to do linear reciprocating motion along said guiding groove.
The present invention can also take following technological scheme further to realize:
Aforesaid micro air pump, wherein, described annular groove is made up of inner top-surface camber that forms of overhead cam slide block and the lower surface camber cooperation of descending the cam slide top to form with it accordingly.
Aforesaid micro air pump, wherein, described overhead cam slide block is provided with positioning groove, and said down cam slide is provided with and this positioning groove flange of wedging mutually, and described cam slide bottom down is provided with a ring-shaped step.
Aforesaid micro air pump; Wherein, The rise of described drive portion and backhaul are asymmetrical design, and said ferrule movement process from 0 °～210 ° in annular groove is the rise of drive portion, and said ferrule movement process from 210 °～360 ° in annular groove is the backhaul of drive portion.
Aforesaid micro air pump, wherein, the air chamber base diameter that described diaphragm portion forms is greater than top diameter.
Aforesaid micro air pump; Wherein, Described diaphragm portion bottom surface extends to form an annular body, and said cam slide top down is provided with and the corresponding boss of annular body, and this boss has annular groove near bottom end position; After boss inserted annular body, annular body bottom engaged with said annular groove.
Aforesaid micro air pump, wherein, described suction valve is that diaphragm portion bottom centre position partial cut forms.
Aforesaid micro air pump, wherein, described diaphragm portion lower end is provided with the barrier film fixing frame.
Aforesaid micro air pump, wherein, described ferrule is a steel ball.
Aforesaid micro air pump, wherein, the material of described overhead cam slide block and following cam slide is an acetal resin.
Aforesaid micro air pump, wherein, said housing and loam cake are respectively equipped with grab and the grab groove that cooperatively interacts.
The present invention also provides a kind of electronic sphygmomanometer that comprises above-mentioned micro air pump, wherein, comprising:
Cuff, said cuff inboard is provided with air bag;
Described micro air pump is used for inflating to cuff to air bag and pressurizes;
Pressure measurement cell is used for measuring human blood-pressure.
The present invention compared with prior art has following advantage at least:
Adopt this structure can effectively reduce the size of output shaft radial direction, thereby reduce the overall dimensions of pump, realize the volume miniaturization of pump; Simultaneously easy to assembly; In extremely limited space, constitute effective driving mechanism, realize the efficient transfer of power and the summary responses of motion.
With the drive portion somatotype is overhead cam slide block and following cam slide two-part, and one is welded in processing more respectively; So not only solved owing to be difficult to problem of implementation on the technology that microsize is brought, also can expand to multiple processing technology and accomplish, like common machining; Molding and forming, the high production technology of cost performance that die cast is such has been broken away from material; Structure, technologic restriction greatly reduces cost.
And adopt above structure, can only need the limited structural parameter of change rationally, can reach the multiple technologies standard, thereby can be applied to the product that different miniature, microminiature need have drive mechanism, make the application of air pump more extensive according to demand.
Embodiment of the present invention is provided by following examples and accompanying drawing thereof in detail.
Description of drawings
Fig. 1 is the schematic appearance of micro air pump of the present invention;
Fig. 2 is the assembling schematic representation of micro air pump of the present invention;
Fig. 3 is the assembling schematic representation of drive portion of the present invention;
Fig. 4 is the sectional drawing of drive portion of the present invention;
Fig. 5 (A) for the present invention along A-A among Fig. 1 to the sectional drawing of working state first limit position;
Fig. 5 (B) for the present invention along A-A among Fig. 1 to the sectional drawing of working state second limit position;
Fig. 6 be in 5 (A) B-B to sectional drawing;
Fig. 7 is for being the unfolded drawing of drive portion annular groove of the present invention;
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment,, specify as follows structure of the present invention, characteristic and effect thereof:
Extremely shown in Figure 6 like Fig. 1; The present invention provides a kind of micro air pump, comprises motor 1, housing 2, the loam cake that is provided with air outlet 34 that links to each other with housing, diaphragm portion 5, drive portion 6, fits in said drive portion top and diaphragm portion bottom; And through hole 7 is set on drive portion; The diaphragm portion correspondence in this through hole outlet port is provided with suction valve 8, and said drive portion is done linear reciprocating motion under the drive of motor output shaft 9, makes diaphragm portion produce distortion; Realize suction, the discharge of gas; Wherein, described drive portion is by overhead cam slide block 61 and affixed formation of following cam slide 62 two-part, and this overhead cam slide block fastens the back with following cam slide and forms annular groove 63 in inwall; Said drive portion outer wall is provided with at least one guide rail muscle 64; At least one guiding groove 21 that can supply the guide rail muscle to slide within it of said inner walls relative set is fixed with a ferrule 10 on the output shaft of said motor, this ferrule engages with said annular groove and follows the rotation drive drive portion of motor output shaft on the output shaft axial direction, to do linear reciprocating motion along said guiding groove.Adopt this structure can effectively reduce the size of output shaft radial direction, thereby reduce the overall dimensions of pump, realize the volume miniaturization of pump; Simultaneously easy to assembly; In extremely limited space, constitute effective driving mechanism, realize the efficient transfer of power and the summary responses of motion.
Aforesaid is overhead cam slide block and following cam slide two-part with the drive portion somatotype, and one is welded in processing more respectively.So not only solved owing to be difficult to problem of implementation on the technology that microsize is brought; Also can expand to multiple processing technology accomplishes; Like common machining, molding and forming, the high production technology of cost performance that die cast is such; Broken away from material, structure, technologic restriction, greatly reduced cost.
Preferable, ultrasonic welding is adopted in the welding of overhead cam slide block and following cam slide.
Above-mentioned ferrule is a steel ball, is welded on the motor output shaft preferable adopted laser bonding.
Concrete, described annular groove is made up of inner top-surface camber 611 that forms of overhead cam slide block and lower surface camber 621 cooperations of descending the cam slide top to form with it accordingly; Preferable, the sectional shape of said annular groove is a rectangle.
Further, described overhead cam slide block is provided with positioning groove 612, and said down cam slide is provided with and this positioning groove flange 622 of wedging mutually, and described cam slide bottom down is provided with a ring-shaped step 623.Adopt this structure to be used to locate overhead cam slide block, the assembly of cam slide down, realize accurately processing, ring-shaped step can play the effect of adjustment cam groove, has guaranteed the conformity of processing.
Preferable, described suction valve is that diaphragm portion bottom centre position partial cut forms.Adopt one-body molded design thus, be beneficial to processing, reduce the assembly operation, reduced cost of production.
Further; An annular body 51 is extended in described diaphragm portion bottom, and said overhead cam slide block top is provided with and the corresponding boss 613 of annular body, and this boss has annular groove 614 near bottom end position; After boss inserted annular body, annular body bottom engaged with said annular groove.Adopt this structure diaphragm portion and drive portion interference fit to play the anticreep effect.
Above-mentioned micro air pump further comprises being arranged on the inner boss 41 of loam cake, thereby the open-mouth end of diaphragm portion 52 elasticity wrap boss at the inner air chamber 11 that forms of diaphragm portion, form gas outlet valve 12 at diaphragm portion and boss junction.
Preferable; In the housing sidewall lower end suction port 13 is set, it is with forming through hole that air-flow passes through suction port, drive portion successively, suction valve, air chamber, the gas outlet valve air-flow path until the air outlet through offer through hole on the drive portion that through hole 14,15 forms respectively at overhead cam slide block and following cam slide.(Fig. 6 dotted arrow illustrates airflow direction)
As shown in Figure 7; The rise of drive portion of the present invention and backhaul are asymmetrical design; Said ferrule movement process from 0 °～210 ° in annular groove is the rise of drive portion, and said ferrule movement process from 210 °～360 ° in annular groove is the backhaul of drive portion.Thus, it is littler to be formed in the rise process pressure angle, makes that the entire mechanism sport efficiency is higher.
Preferable, aforesaid micro air pump, wherein, the air chamber base diameter that described diaphragm portion forms is slightly larger than top diameter.When compressing the space is provided, reduces the expansion resistance of rubber thin-walled for the bottom of drive portion promotion diaphragm of rubber.
Preferable, what present embodiment housing, overhead cam slide block and following cam slide adopted is acetal resin, and intensity, the rigidity of this material are strong, and the anti-attrition wear resistance is good and effectively reduce detrimental resistance, thereby improves working life.
In addition, aforesaid micro air pump wherein, also comprises barrier film fixing frame 16, and diaphragm portion is crushed on the barrier film fixing frame, plays and supports and the fixedly effect of diaphragm portion.
Aforesaid micro air pump, wherein, said housing and loam cake are respectively equipped with the grab 17 and grab groove 18 that cooperatively interacts, in order to the fixing whole pump housing.
Below in conjunction with accompanying drawing operation of the present invention and movement process are elaborated as follows:
Be positioned at when steel ball under the state of 0 ° of position shown in Fig. 5 (B), if drive motor, then output shaft rotation; Steel ball moves and produces axial thrust load along circular groove, drives drive portion and moves on the output shaft axial direction along guiding groove, and presses against diaphragm portion produces distortion; The air chamber internal pressure increases, and suction valve cuts out, and gas outlet valve is then washed open by air-flow; Air is supplied with to the outside from the air outlet; Move to shown in Fig. 5 (A) 210 ° position up to steel ball, this movement process is the rise of drive portion, and the top-surface camber of overhead cam slide block is stressed.
When steel ball when 210 ° of positions move to 360 ° of positions shown in Fig. 5 (B) shown in Fig. 5 (A) since with outer gas stream pressure reduction, along with the backhaul of slide block; Air-flow backs down suction valve, and air gets into air chamber, and; Because the elastic return of the open-mouth end bullet of diaphragm of rubber portion closely wraps boss, promptly prevented the air-flow adverse current of output; This movement process is the backhaul of drive portion, and the lower surface camber of following cam slide is stressed.
So, steel ball moves a week at annular groove, accomplishes discharge and sucks two operations, and through repeating such operation, air chamber is continuing the inflow and the outflow of gas, thereby plays the effect of air pump.
The present invention also provides a kind of electronic sphygmomanometer (not shown) that comprises above-mentioned micro air pump, wherein, comprising:
Cuff, said cuff inboard is provided with air bag;
Said micro air pump is used for inflating to cuff to air bag and pressurizes;
Pressure measurement cell is used for measuring human blood-pressure.
For example, be applied to gas and measure in the sphygmomanometer, for satisfying the pressurization demand and, can set the linear reciprocation stroke 2mm of drive portion, and design its rise moving corner and be respectively 210 degree and 150 with the rise moving corner and spend according to technical standard requirement to air pump.Be not limited to above parameter in the practical application, can adjust structural parameter according to different demands.
In addition, above-mentioned micro air pump can be used as component application in other medical device product, like the gas-pressure massaging product, also can be widely used in miniaturely, and microminiature need have in the product of drive mechanism.
The above only is preferred embodiment of the present invention; Pump body structure is not limited to above combination and also is not limited to the outward appearance that provided; Every foundation technological scheme of the present invention all belongs to the scope of the present invention's protection to any simple modification and equivalents that above embodiment carries out.
Claims (12)
1. micro air pump comprises motor, housing, the loam cake that is provided with the air outlet, diaphragm portion, the drive portion that link to each other with housing, fits in said drive portion top and diaphragm portion bottom; And through hole is set on drive portion; The diaphragm portion correspondence in this through hole outlet port is provided with suction valve, and said drive portion is done linear reciprocating motion under the drive of motor output shaft, makes diaphragm portion produce distortion; Realize suction, the discharge of gas; It is characterized in that described drive portion is by overhead cam slide block and affixed formation of following cam slide two-part body, this overhead cam slide block fastens the back with following cam slide and forms annular groove in inwall; Said drive portion outer wall is provided with at least one guide rail muscle; At least one guiding groove that can supply the guide rail muscle to slide within it of said inner walls relative set is fixed with a ferrule on the output shaft of said motor, this ferrule engages with said annular groove and follows the rotation drive drive portion of motor output shaft on the output shaft axial direction, to do linear reciprocating motion along said guiding groove.
2. micro air pump according to claim 1 is characterized in that, described annular groove is made up of inner top-surface camber that forms of overhead cam slide block and the lower surface camber cooperation of descending the cam slide top to form with it accordingly.
3. micro air pump according to claim 2 is characterized in that, described overhead cam slide block is provided with positioning groove, and said down cam slide is provided with and this positioning groove flange of wedging mutually, and described cam slide bottom down is provided with a ring-shaped step.
4. according to each described micro air pump in the claim 1 to 3; It is characterized in that; The rise of described drive portion and backhaul are asymmetrical design; Said ferrule movement process from 0 °～210 ° in annular groove is the rise of drive portion, and said ferrule movement process from 210 °～360 ° in annular groove is the backhaul of drive portion.
5. micro air pump according to claim 4 is characterized in that, the air chamber base diameter that described diaphragm portion forms is greater than top diameter.
6. micro air pump according to claim 5; It is characterized in that; Described diaphragm portion bottom surface extends to form an annular body, and said cam slide top down is provided with and the corresponding boss of annular body, and this boss has annular groove near bottom end position; After boss inserted annular body, annular body bottom engaged with said annular groove.
7. micro air pump according to claim 6 is characterized in that, described suction valve is that diaphragm portion bottom centre position partial cut forms.
8. micro air pump according to claim 7 is characterized in that, described diaphragm portion lower end is provided with the barrier film fixing frame.
9. micro air pump according to claim 8 is characterized in that, described ferrule is a steel ball.
10. micro air pump according to claim 9 is characterized in that, the material of described overhead cam slide block and following cam slide is an acetal resin.
11. micro air pump according to claim 10 is characterized in that, said housing and loam cake are respectively equipped with grab and the grab groove that cooperatively interacts.
12. an electronic sphygmomanometer is characterized in that, comprising:
Cuff, said cuff inboard is provided with air bag;
Any described micro air pump among the claim 1-3 is used for inflating to cuff to air bag and pressurizes; Pressure measurement cell is used for measuring human blood-pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210188654.2A CN102678529B (en) | 2012-06-11 | 2012-06-11 | Miniature air pump and electronic manometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210188654.2A CN102678529B (en) | 2012-06-11 | 2012-06-11 | Miniature air pump and electronic manometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102678529A true CN102678529A (en) | 2012-09-19 |
| CN102678529B CN102678529B (en) | 2015-02-18 |
Family
ID=46810943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210188654.2A Active CN102678529B (en) | 2012-06-11 | 2012-06-11 | Miniature air pump and electronic manometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102678529B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104825145A (en) * | 2015-04-30 | 2015-08-12 | 深圳金亿帝医疗设备股份有限公司 | Air valve, integrated air pump and wearable electronic sphygmomanometer |
| CN107781147A (en) * | 2017-11-28 | 2018-03-09 | 广东商旅宝健康科技有限公司 | Electric aeration device |
| CN112576477A (en) * | 2020-12-15 | 2021-03-30 | 深圳市桑泰达科技有限公司 | Miniature air pump |
| CN113669238A (en) * | 2021-08-26 | 2021-11-19 | 厦门达真电机有限公司 | Miniature electric air pump |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1224316A (en) * | 1967-04-22 | 1971-03-10 | Dunlop Co Ltd | Improvements in reciprocating pumps |
| JPH07293450A (en) * | 1994-04-25 | 1995-11-07 | Matsushita Electric Works Ltd | Small-sized air pump device |
| JP2000120550A (en) * | 1998-10-20 | 2000-04-25 | Citizen Watch Co Ltd | Air chamber structure of small sized pump device for sphygmomanometer |
| JP2002106467A (en) * | 2000-09-28 | 2002-04-10 | Techno Excel Co Ltd | Traverse mechanism driving type fluid pump |
| JP2003278658A (en) * | 2002-03-20 | 2003-10-02 | Toshiba Tec Corp | Air pump |
| JP2003293959A (en) * | 2002-03-29 | 2003-10-15 | Toshiba Tec Corp | Air pump |
| CN202597034U (en) * | 2012-06-11 | 2012-12-12 | 天津九安医疗电子股份有限公司 | Minitype air pump and electronic sphygmomanometer |
-
2012
- 2012-06-11 CN CN201210188654.2A patent/CN102678529B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1224316A (en) * | 1967-04-22 | 1971-03-10 | Dunlop Co Ltd | Improvements in reciprocating pumps |
| JPH07293450A (en) * | 1994-04-25 | 1995-11-07 | Matsushita Electric Works Ltd | Small-sized air pump device |
| JP2000120550A (en) * | 1998-10-20 | 2000-04-25 | Citizen Watch Co Ltd | Air chamber structure of small sized pump device for sphygmomanometer |
| JP2002106467A (en) * | 2000-09-28 | 2002-04-10 | Techno Excel Co Ltd | Traverse mechanism driving type fluid pump |
| JP2003278658A (en) * | 2002-03-20 | 2003-10-02 | Toshiba Tec Corp | Air pump |
| JP2003293959A (en) * | 2002-03-29 | 2003-10-15 | Toshiba Tec Corp | Air pump |
| CN202597034U (en) * | 2012-06-11 | 2012-12-12 | 天津九安医疗电子股份有限公司 | Minitype air pump and electronic sphygmomanometer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104825145A (en) * | 2015-04-30 | 2015-08-12 | 深圳金亿帝医疗设备股份有限公司 | Air valve, integrated air pump and wearable electronic sphygmomanometer |
| CN107781147A (en) * | 2017-11-28 | 2018-03-09 | 广东商旅宝健康科技有限公司 | Electric aeration device |
| CN112576477A (en) * | 2020-12-15 | 2021-03-30 | 深圳市桑泰达科技有限公司 | Miniature air pump |
| CN113669238A (en) * | 2021-08-26 | 2021-11-19 | 厦门达真电机有限公司 | Miniature electric air pump |
| CN113669238B (en) * | 2021-08-26 | 2022-12-06 | 厦门达真电机有限公司 | Miniature electric air pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102678529B (en) | 2015-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102182665B (en) | High-pressure bidirectional miniature power-driven air pump | |
| CN102220957B (en) | Reciprocating compressor | |
| CN102678529A (en) | Miniature air pump and electronic manometer | |
| ATE366365T1 (en) | GAS OUTLET FOR A PISTON COMPRESSOR | |
| CN205744338U (en) | A kind of double rank pressurizing air press | |
| CN202597034U (en) | Minitype air pump and electronic sphygmomanometer | |
| CN211500906U (en) | Efficient energy-saving air compressor | |
| JP2001271744A (en) | Air compressor | |
| CN201953601U (en) | Miniature negative pressure pump | |
| CN1444696A (en) | Reciprocating compressor | |
| JP4430348B2 (en) | Reciprocating compressor | |
| CN203742959U (en) | Diaphragm piece structure of air pump | |
| CN217582410U (en) | Sliding block mechanism for inflator | |
| CN215979809U (en) | Miniature air pump | |
| CN108775278A (en) | Portable oxygen generator compressor | |
| WO2018082154A1 (en) | Upper cover for pump and pump | |
| CN214304229U (en) | Pump core for pressure boosting vacuum pump | |
| JP2005171988A (en) | Suction valve and reciprocating compressor having the same | |
| CN218206961U (en) | Air supply device and atomizer | |
| CN222333956U (en) | Heat radiation structure of single-head piston pump | |
| CN220302311U (en) | Unidirectional air pump and breast pump | |
| CN222276862U (en) | Air pump structure, sucking massage device and licking massage device | |
| CN219034930U (en) | Pump core and electric inflator pump | |
| KR101136202B1 (en) | Muffler assembly for linear compressor | |
| CN221003050U (en) | Small piston type air pump with vibration reduction and noise reduction mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |