CN202579075U - Pneumatic pump - Google Patents
Pneumatic pump Download PDFInfo
- Publication number
- CN202579075U CN202579075U CN 201220116321 CN201220116321U CN202579075U CN 202579075 U CN202579075 U CN 202579075U CN 201220116321 CN201220116321 CN 201220116321 CN 201220116321 U CN201220116321 U CN 201220116321U CN 202579075 U CN202579075 U CN 202579075U
- Authority
- CN
- China
- Prior art keywords
- air flue
- piston
- switching
- over
- pneumatic pump
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a pneumatic pump, comprising a cylinder body and a piston arranged in the cylinder body, wherein the piston and the cylinder body are in seal sliding fit; the lower end of the cylinder body is fixedly provided with a cylinder cover; and the lower end of the piston stretches out of the cylinder cover. The pneumatic pump is characterized in that at least one reversing air passage is arranged in the upper end part of the piston; a reversing plunger is arranged in each reversing air passage in a seal way; two ends of each reversing plunger are fixedly provided with a spring respectively; each spring stretches out of the piston; the middle part of each reversing plunger is provided with an annular groove; air passage groups with number same as that of the reversing air passages are arranged in the upper end part of the piston; the air passage groups are communicated with the reversing air passages; an air inlet is arranged on the cylinder cover; an air outlet is arranged on the lower end of the piston; and the air passage groups are communicated with the air inlet and the air outlet respectively. The pneumatic pump has the advantages that when the piston moves up and down, the springs are compressed through the contact between the springs and the cylinder, and then the reversing plungers are pushed to switch stations; in addition, the work is stable and reliable; moreover, the shock is small, the reversing is rapid and the noise is low; and furthermore, the whole pneumatic pump is simple and compact in structure, small in size and low in manufacturing cost.
Description
Technical field
The utility model relates to a kind of pneumatic pump.
Background technique
Pneumatic pump be a kind of with pressurized gas as power source, through the flow direction of distribution reversing arrangement control pressurized gas,, realize the device of outputting reciprocating linear movement to drive the motion of cylinder piston.At present, according to the difference of distribution reversing arrangement, mainly can be divided into two big types: one type is to adopt air operated reversing valve control pressurized gas to flow to realize the piston switching-over, and another kind of is to adopt mechanical commutation mechanism controls pressurized gas to flow to realize the piston switching-over.But the pneumatic pump that exists in the market; Basically all there are shortcomings such as volume is big, complex structure; And the ubiquity collision of mechanical commutation mechanism is big, easy to wear, the accurate inadequately problem of switching-over control; Though and the switching-over of present pneumatic type changement is accurate, the saving source of the gas, price is generally expensive.
Summary of the invention
The utility model technical problem to be solved provides that a kind of volume is little, low cost of manufacture and stable working is reliable, collision is little, noise is low pneumatic pump.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of pneumatic pump, comprise cylinder body and the piston that is arranged in the described cylinder body, and described piston and described cylinder body sealed sliding are movingly; The lower end of described cylinder body is set with cylinder cap; Described cylinder cap is stretched out in the underpart of described piston, is provided with at least one switching-over air flue in the upper end portion of described piston, and sealing is provided with the switching-over plunger in the described switching-over air flue; The two ends of described switching-over plunger are set with spring; Described spring stretches out described piston, and the middle part of described switching-over plunger is provided with circular groove, is provided with the air flue group that quantity equates with described switching-over air flue in the upper end portion of described piston; Described air flue group is connected with described switching-over air flue; Described cylinder cap is provided with suction port, and the underpart of described piston is provided with the air outlet, and described air flue group is connected with described suction port, air outlet respectively.
The upper end of described piston is set with the piston loam cake; Described piston loam cake is provided with and the coaxial through hole of described switching-over air flue; The diameter of described through hole is less than the diameter of described switching-over plunger, and the lower end of described switching-over air flue is provided with positioning step; The assembling and the maintenance of the both convenient switching-over plunger of this structure, the plunger that can prevent again to commutate skids off the switching-over air flue when receiving the active force of spring.
Described air flue group comprises first air flue, second air flue and the 3rd air flue; Described piston loam cake is stretched out in the upper end of described first air flue; The lower end of described first air flue is communicated with described switching-over air flue; Described second air flue is connected with described switching-over air flue, air outlet respectively, and the lower end of described the 3rd air flue is connected with described suction port, and the upper end of described the 3rd air flue is connected with described switching-over air flue.
Be provided with inner chamber in the underpart of described piston; The lower end of described piston is set with the piston lower cover; Described air outlet is arranged under the described piston and covers; Described second air flue respectively with described switching-over air flue, intracavity inter-connection, cover under the described piston and be set with drive link.
Described switching-over air flue is at least two, and evenly distributes around the central shaft of described piston.
Compared with prior art, the utility model has the advantages that sealing is provided with the switching-over plunger in the switching-over air flue owing to be provided with a plurality of equally distributed switching-over air flues in the upper end portion of piston; The two ends of switching-over plunger are set with spring; When piston when moving up and down, through the contact pressure spring of spring, promote the switching-over plunger and switch station with cylinder; Its stable working is reliable, and impact little, switching-over is fast, noise is low; And whole pneumatic pump is simple and compact for structure, volume is little, low cost of manufacture.
Description of drawings
Structural representation when Fig. 1 is in station for the switching-over plunger of the utility model;
Fig. 2 is the sectional view of A-A among Fig. 1;
Structural representation when Fig. 3 is in station down for the switching-over plunger of the utility model;
Fig. 4 is the sectional view of B-B among Fig. 3.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in the figure, a kind of pneumatic pump comprises cylinder body 1 and the piston 2 that is arranged in the cylinder body 1; Piston 2 and cylinder body 1 sealed sliding movingly, the lower end of cylinder body 1 is set with cylinder cap 3, cylinder cap 3 is stretched out in the underpart of piston 2; Cylinder cap 3 is provided with suction port 31, is provided with two in the upper end portion of piston 2 around the equally distributed switching-over air flue 21 of piston 2 central shafts, and sealing is provided with switching-over plunger 4 in the switching-over air flue 21; The two ends of switching-over plunger 4 are set with spring 5, and spring 5 stretches out piston 2, and the upper end of piston 2 is set with piston loam cake 6; Piston loam cake 6 is provided with the through hole 61 coaxial with the air flue 21 of commutating, and the diameter of through hole 61 is less than the diameter of switching-over plunger 4, and the lower end of switching-over air flue 21 is provided with positioning step 22; The middle part of switching-over plunger 4 is provided with circular groove 41, is provided with the air flue group that quantity equates with the air flue 21 that commutates in the upper end portion of piston 2, and the air flue group comprises first air flue 7, second air flue 8 and the 3rd air flue 9; The lower end that piston loam cake 6, the first air flues 7 are stretched out in the upper end of first air flue 7 is communicated with switching-over air flue 21, is provided with inner chamber 23 in the underpart of piston 2; The lower end of piston 2 is set with piston lower cover 24; Piston lower cover 24 is provided with air outlet 25, the second air flues 8 and is connected with switching-over air flue 21, inner chamber 23 respectively, and the lower end of the 3rd air flue 9 is connected with suction port 31; The upper end of the 3rd air flue 9 is connected with switching-over air flue 21, is bolted with drive link 26 on the piston lower cover 24.
The working procedure of this pneumatic pump is: pressurized air gets in the cavity of resorption of cylinder body 1 from suction port 31; The plunger 4 that commutates this moment is in station; Like Fig. 1, shown in 2, the 3rd air flue 9 is blocked by the upper end of switching-over plunger 4, circular groove 41 conductings of first air flue 7 and second air flue 8 and switching-over plunger 4; Pressurized gas can't be passed into the epicoele through the 3rd air flue 9 from the cavity of resorption of cylinder body 1; Cylinder body 1 moves upward piston 2 in the promotion lower edge of pressurized gas, and the gas in cylinder body 1 epicoele gets in the inner chamber 23 of piston 2 through first air flue 7 and second air flue 8, and 25 discharges from the air outlet; When piston 2 moves up the spring 5 that makes switching-over plunger 4 upper ends when touching the upper wall of cylinder body 1; Spring 5 plunger 4 that is compressed and then promotes to commutate is moved downward to down station; Like Fig. 3, shown in 4; This moment, the 3rd air flue 9 was communicated with switching-over air flue 21, and first air flue 7 is blocked by the upper end of switching-over plungers 4, and pressurized gas is passed into the epicoele of cylinder body 1 from the cavity of resorption warp of cylinder body 1 the 3rd air flue 9, the air flue 21 that commutates; And the gas in cylinder body 1 epicoele can't be discharged through first air flue 7, and then promotion piston 2 moves downward; When the spring 5 of switching-over plunger 4 lower ends touches cylinder cap 3, the spring 5 plunger 4 supreme station that moves up that is compressed and then promotes to commutate, and repeat a process.
Claims (5)
1. a pneumatic pump comprises cylinder body and the piston that is arranged in the described cylinder body, and described piston and described cylinder body sealed sliding are movingly; The lower end of described cylinder body is set with cylinder cap; Described cylinder cap is stretched out in the underpart of described piston, it is characterized in that being provided with in the upper end portion of described piston at least one switching-over air flue, and sealing is provided with the switching-over plunger in the described switching-over air flue; The two ends of described switching-over plunger are set with spring; Described spring stretches out described piston, and the middle part of described switching-over plunger is provided with circular groove, is provided with the air flue group that quantity equates with described switching-over air flue in the upper end portion of described piston; Described air flue group is connected with described switching-over air flue; Described cylinder cap is provided with suction port, and the underpart of described piston is provided with the air outlet, and described air flue group is connected with described suction port, air outlet respectively.
2. a kind of pneumatic pump as claimed in claim 1; The upper end that it is characterized in that described piston is set with the piston loam cake; Described piston loam cake is provided with and the coaxial through hole of described switching-over air flue; The diameter of described through hole is less than the diameter of described switching-over plunger, and the lower end of described switching-over air flue is provided with positioning step.
3. a kind of pneumatic pump as claimed in claim 2; It is characterized in that described air flue group comprises first air flue, second air flue and the 3rd air flue; Described piston loam cake is stretched out in the upper end of described first air flue, and the lower end of described first air flue is communicated with described switching-over air flue, and described second air flue is connected with described switching-over air flue, air outlet respectively; The lower end of described the 3rd air flue is connected with described suction port, and the upper end of described the 3rd air flue is connected with described switching-over air flue.
4. a kind of pneumatic pump as claimed in claim 3; It is characterized in that being provided with inner chamber in the underpart of described piston; The lower end of described piston is set with the piston lower cover; Described air outlet is arranged under the described piston and covers, described second air flue respectively with described switching-over air flue, intracavity inter-connection, cover under the described piston and be set with drive link.
5. a kind of pneumatic pump as claimed in claim 1 is characterized in that described switching-over air flue is at least two, and evenly distributes around the central shaft of described piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220116321 CN202579075U (en) | 2012-03-23 | 2012-03-23 | Pneumatic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220116321 CN202579075U (en) | 2012-03-23 | 2012-03-23 | Pneumatic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202579075U true CN202579075U (en) | 2012-12-05 |
Family
ID=47248493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220116321 Expired - Fee Related CN202579075U (en) | 2012-03-23 | 2012-03-23 | Pneumatic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202579075U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233877A (en) * | 2013-04-15 | 2013-08-07 | 宁波大学 | Built-in ventilation pneumatic pump |
| CN103233875A (en) * | 2013-04-12 | 2013-08-07 | 宁波大学 | Lateral ball type reversing pneumatic pump |
| CN103244370A (en) * | 2013-04-17 | 2013-08-14 | 宁波大学 | Pneumatic pump |
| CN107429684A (en) * | 2015-04-07 | 2017-12-01 | 株式会社易威奇 | Double reciprocation pump |
| CN107538252A (en) * | 2017-08-28 | 2018-01-05 | 华星传动科技无锡有限公司 | The pneumatic swelling fixture of electric machine of numerically controlled machine casing processing |
| CN116771626A (en) * | 2022-03-03 | 2023-09-19 | 姜亚东 | Pneumatic pump |
-
2012
- 2012-03-23 CN CN 201220116321 patent/CN202579075U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233875A (en) * | 2013-04-12 | 2013-08-07 | 宁波大学 | Lateral ball type reversing pneumatic pump |
| CN103233875B (en) * | 2013-04-12 | 2016-01-20 | 宁波大学 | Side direction ball commutation pneumatic pump |
| CN103233877A (en) * | 2013-04-15 | 2013-08-07 | 宁波大学 | Built-in ventilation pneumatic pump |
| CN103233877B (en) * | 2013-04-15 | 2015-12-23 | 宁波大学 | Built-in ventilation pneumatic pump |
| CN103244370A (en) * | 2013-04-17 | 2013-08-14 | 宁波大学 | Pneumatic pump |
| CN107429684A (en) * | 2015-04-07 | 2017-12-01 | 株式会社易威奇 | Double reciprocation pump |
| CN107429684B (en) * | 2015-04-07 | 2019-04-26 | 株式会社易威奇 | Double reciprocation pump |
| US10550835B2 (en) | 2015-04-07 | 2020-02-04 | Iwaki Co., Ltd. | Duplex reciprocating pump |
| CN107538252A (en) * | 2017-08-28 | 2018-01-05 | 华星传动科技无锡有限公司 | The pneumatic swelling fixture of electric machine of numerically controlled machine casing processing |
| CN116771626A (en) * | 2022-03-03 | 2023-09-19 | 姜亚东 | Pneumatic pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202579075U (en) | Pneumatic pump | |
| CN202017792U (en) | Pneumatic reversal valve for automobile gearbox | |
| CN209586611U (en) | It takes out the liquid storing barrel cover assembly of liquid filler and takes out liquid filler | |
| CN102678507A (en) | Double-acting hydraulic ejecting type vacuumizing and compressing device of double cylinders | |
| CN202056020U (en) | Secondary-level pressurizing horizontal type vehicle-mounted air compressor | |
| CN103470473A (en) | Hydraulic gas vacuum pump | |
| CN104564610A (en) | Non-clearance pneumatic oil cylinder | |
| CN204284530U (en) | Two-position five-way double gas control valve | |
| CN202707668U (en) | Sectional type multiple-pass cylinder | |
| CN203321764U (en) | Contact reversing type pneumatic pump | |
| CN103775302A (en) | Fracturing truck and drive conveying system thereof | |
| CN103244370B (en) | Pneumatic pump | |
| CN207728660U (en) | A kind of reciprocating air cylinder of automatic switchover | |
| CN102852752A (en) | Pneumatic pump | |
| CN104196820A (en) | Energy-saving combined air cylinder | |
| CN103470467A (en) | Hydraulic gas compressor | |
| CN103644116A (en) | Air compressor | |
| CN203463254U (en) | Hydraulic air vacuum pump | |
| CN203783845U (en) | Fracturing truck and transmission and conveying system thereof | |
| CN101943276A (en) | Combined air valve | |
| CN202732268U (en) | Vacuumizing and compressing device of double-acting hydraulic injection type double air cylinder | |
| CN212717091U (en) | Unloading one-way valve of air compressor | |
| CN203476628U (en) | Hydraulic gas compressor | |
| CN203463242U (en) | Hydraulic airless pump | |
| CN204572390U (en) | Nothing left gap pressure gas and oil cylinder |
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: 20121205 Termination date: 20150323 |
|
| EXPY | Termination of patent right or utility model |