CN2437874Y - Automatic pressure-adjusting miniature inflating pump for bicycle - Google Patents
Automatic pressure-adjusting miniature inflating pump for bicycle Download PDFInfo
- Publication number
- CN2437874Y CN2437874Y CN 00205270 CN00205270U CN2437874Y CN 2437874 Y CN2437874 Y CN 2437874Y CN 00205270 CN00205270 CN 00205270 CN 00205270 U CN00205270 U CN 00205270U CN 2437874 Y CN2437874 Y CN 2437874Y
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- pump
- pressure
- air
- valve
- piston
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Abstract
The utility model relates to an automatic pressure adjusting miniature inflator for bicycles. A pump cover, a pump body, a lower cover and a cam box are fixedly connected into a whole by screws. The inner part and the outer part of the pump body are respectively provided with a pressure adjusting component device, a self-locking component device and parts. When air pressure in a tire connected with a joint of an air pipe of an air pump is lower than setting pressure, the air pump is inflated automatically. When the air pressure in the tire achieves the setting pressure, the air pump is automatically locked and stopped. Thereby, the tire is in a saturated state forever. The utility model has the advantages of simple structure, convenient assembly and disassembly, low cost, etc.
Description
The utility model relates to a kind of inflator of wheel tyre, the miniature gas-filled pump of especially a kind of automatic Regulation of bicycle.
The utility model is further to improve on the basis of original application patent (94209704.7) gas-filled pump.Purpose is to simplify the inflation pump structure, and the dismounting of being more convenient for strengthens sealability, improves the pressurising effect, alleviates pump housing weight, reduces cost.
Though the miniature gas-filled pump of model utility bicycle pressure regulation of original application has reached automatic inflation in actual use; the purpose of autostop; but manual inflation's mouth of in use finding to be located on the former pump housing does not match with the valve joint that shows the artificial pump that uses on the market; so be difficult to bring into play the effect of manual inflation's mouth on the former pump housing; in view of this; so the utility model is under the prerequisite that does not influence the gas-filled pump original function; the former manual inflation's device that is used for that is located at pump housing upper end is cast integrator with former tyre inflation mouth; be referred to as " threeway charging air inlet "; be the part (32) in the accompanying drawing 2, this improvement has following several advantage than former design proposal:
1. simplify former inflation pump structure, alleviated the weight of the pump housing.
2. strengthen the sealability of pump body structure, improved the pressurising effect.
3. screwdriver is to connecting the operation of screw when helping the installation of the pump housing and cam box.
The utility model purpose is achieved in that the miniature gas-filled pump of a kind of bicycle automatic Regulation, it comprises the cam box that has oil hole on it, the cam that is fixed together with axle is arranged in the casing, cam and axle itself is motionless, cam box with do relative rotation motion with integrated member and cam that its pump that is bound up and the big piston in the pump housing are formed, big piston then does reciprocating linear motion in the pump housing, thereby air outlet hole and the gas tube of gas by the pump chamber bottom, the threeway charging air inlet is pressed in the tire, when the air pressure in the tire is higher than set pressure, high pressure draught returns through the gas tube air-teturning hole, enter in the pressure regulation valve pocket and push pressure regulator valve to the other end air-flow through gas port, thereby air pipe enters and promotes small piston in the chamber of taper small piston and 3 viscous motion steel balls are extruded caused big piston to be in and cam forms separating contacting state, big piston promptly quits work like this, thereby guarantee that tire promptly is in saturation state forever, also unlikelyly make tyre break because of air pressure exceeds set pressure.If but the air pressure in the tire is when being lower than set pressure, taper small piston internal air pressure also descends thereupon, and small piston then is subjected to spring pressure and resets.This moment, the viscous motion steel ball was owing to the extruding force of releasing small piston resets.Therefore, big piston contacts with cam again and does reciprocating linear motion.Circulation has promptly guaranteed so repeatedly: air pump work when the tire internal air pressure is low and inflating, and air pump self-locking and quitting work when air pressure meets and exceeds set pressure.Self-locking and quitting work.
Embodiment below in conjunction with accompanying drawing is further elaborated the utility model:
Fig. 1, among the Fig. 2 are overall structure figure of the present utility model. figure: 1. cam box 2. large piston 3. lower covers 4. taper valve pistons 5. fairleads 6. glands 7. tower springs 8. pump housing 8a. ventholes 9. check valves 10. unidirectional valve spring 11. venthole joints 12. air-teturning holes 13. pressure regulation O-ring seals 14. gas ports 15. pressure regulator valves 16. pressure regulation springs 17. pressure regulation cap sealing rings 18. pressure regulation caps 19. locknuts 20. wireways 21. large piston packing 22. taper valve piston stage clips 23. holding screws 24. connect screws 25. viscous motion steel balls 26. large piston top steel ball 27. axles 28. cams 29. gas tube lock nuts 30. gas tubes 31. valve cock lock nuts 32. threeway valve cocks 33. manual inflation's mouth lock nuts 34. manual inflation's mouths
Replaced the axle skin of antero posterior axis and be fixed together at Fig. 1 embodiment convexity roller box (1) with floral disc on the bicycle, cam (28) is fixed together with axle (27), described cam box (a 1) cam (28) and a power mechanism of (27) composition pump, the unidirectional valve spring of described air outlet hole (8a) one-way valve (9) (10) air outlet hole joint (11) gas tube lock nut (29) gas tube (30) threeway valve cock (32) constitutes the individual inflation mechanism of air pump, described air-teturning hole (12) pressure regulation O-ring seal (13) gas port (14) pressure regulator valve (15) constitutes automatic pressure regulating mechanism, described air pipe (20) gland (6) taper small piston (4) taper small piston stage clip (22) viscous motion steel ball (25) cooperates formation self-locking viscous motion mechanism with big piston (2), in the described cam box (1) that has an oil hole cam (28) that is fixed together with axle (27) is arranged, when cam (28) and big piston (2) when doing relative rotation motion, piston (2) is done straight reciprocating motion, gas is pressed to one-way valve (9) from pump chamber bottom air outlet hole (8a) and is pressed in the tire through gas tube (30) threeway valve cock (32), when the air pressure in the tire is higher than set pressure, high pressure draught returns through gas tube (30), air-teturning hole (12) enter in the pressure regulation valve pocket pressure regulator valve (15) pushed open and through gas port (14) air pipe (20) enter taper small piston (4) thus the chamber in the promotion small piston 3 viscous motion steel balls (25) are extruded, thereby the viscous motion piston quits work, has only big piston when the air pressure in the tire is reduced to set pressure (2) owing to release viscous motion power, promptly begin inflation work again, just guaranteed repeatedly that so the air pressure in the tire is in saturation state forever.
Among the embodiment shown in Figure 2, described valve cock lock nut (31) joins gas tube (30) and threeway valve cock (32) together, described manual inflation's mouth lock nut (33) joins manual inflation's mouth (34) and threeway valve cock (32) together, owing to former design charging air inlet changed is set to the tyre valve place and both simplified the structure, strengthened sealability, the operation when also being convenient to the connection of the pump housing and cam box and manual inflation.
Claims (3)
1. automatic pressure-adjusting miniature inflating pump for bicycle; （1） （2） （3） （4） （5） （6） （7） （8） （8a） （9） （10） （11） （12） （13） （14） （15） （16） （17） （18） （19） （20） （21） （22） （23） （24） （25） （26） （27） （28） （29） （30） （31） （32） （33） （34）； The connection that it is characterized in that the described pump housing (8) lower cover (3) and cam box (1) is bound by 4 fastening screws and is integrated; Described cam box (1) cam (28) and axle (27) consist of the actuating unit of inflator pump; The unidirectional valve spring of described venthole (8a) check valve (9) (10) venthole joint (11) gas tube lock nut (29) gas tube (30) threeway valve cock (32) consists of the inflation mechanism of air pump; Described air-teturning hole (12) pressure regulation O-ring seal (13) gas port (14) pressure regulator valve (15) consists of automatic pressure regulating mechanism; Described wireway (20) gland (6) taper valve piston (4) taper valve piston stage clip (22) viscous motion steel ball (25) cooperates formation self-locking viscous motion mechanism with big piston (2); Described big piston (2) is along its horizontal direction and near a side spiral marking connection gland (6) of wireway (20), and the other end of described gland (6) the successively tip of attaching taper valve piston stage clip (22) taper valve piston (4) viscous motion steel ball (25) and taper valve piston (4) points to viscous motion steel ball (25).
2. according to the requirement of right 1, the miniature gas-filled pump of the automatic Regulation of described bicycle is characterized in that the pressure regulation cap (18) and the connecting part of the spiral marking connection of pressure regulator valve (15) inner chamber are provided with pressure regulation cap O-ring seal (17).
3. according to the requirement of right 1, the miniature gas-filled pump of the automatic Regulation of described bicycle, the side casting that it is characterized in that valve cock (32) has been closed manual inflation's mouth cap (33) and has been replaced the former charging air inlet that is located on the pump housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00205270 CN2437874Y (en) | 2000-03-08 | 2000-03-08 | Automatic pressure-adjusting miniature inflating pump for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00205270 CN2437874Y (en) | 2000-03-08 | 2000-03-08 | Automatic pressure-adjusting miniature inflating pump for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2437874Y true CN2437874Y (en) | 2001-07-04 |
Family
ID=33573468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00205270 Expired - Fee Related CN2437874Y (en) | 2000-03-08 | 2000-03-08 | Automatic pressure-adjusting miniature inflating pump for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2437874Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100374720C (en) * | 2005-04-21 | 2008-03-12 | 张坤林 | Microairpump piston driving mechanism |
| CN103775821A (en) * | 2014-01-24 | 2014-05-07 | 浙江大学 | Automatic inflator |
-
2000
- 2000-03-08 CN CN 00205270 patent/CN2437874Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100374720C (en) * | 2005-04-21 | 2008-03-12 | 张坤林 | Microairpump piston driving mechanism |
| CN103775821A (en) * | 2014-01-24 | 2014-05-07 | 浙江大学 | Automatic inflator |
| CN103775821B (en) * | 2014-01-24 | 2016-04-27 | 浙江大学 | Automatic aerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |