CN2148196Y - Pedal inflating pump - Google Patents
Pedal inflating pump Download PDFInfo
- Publication number
- CN2148196Y CN2148196Y CN 92219803 CN92219803U CN2148196Y CN 2148196 Y CN2148196 Y CN 2148196Y CN 92219803 CN92219803 CN 92219803 CN 92219803 U CN92219803 U CN 92219803U CN 2148196 Y CN2148196 Y CN 2148196Y
- Authority
- CN
- China
- Prior art keywords
- air
- air cylinder
- cylinder
- piston
- front axle
- 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
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model discloses a pedal air-pump provided with an air cylinder (8), a piston (14) and a piston rod (6). The front cover of the air cylinder is provided with a one-way valve (10). The pedal air-pump has the features that a bottom bracket (7) is formed; one end of the piston rod (6) is fixed to the rear shaft of the bottom bracket (7); a taper groove at the circumference of the piston (14) is provided with a sealing ring (15); a pedal support (3) can rotate round the front axle of the bottom bracket (7), driving the air cylinder to move, and the front axle is provided with a spring (13). When the pedal support (3) is stepped down by foot, the air cylinder (8) move backward, and the air inside the air cylinder (8) can get into the inner tyre; when the foot is moved away, the spring (13) makes the air cylinder (8) move forward, and the air gets into the air cylinder (8). When the air-pump is used for air-pumping, 10 atmospheric pressure can be reached, and the service life of the inner tyre can be prolonged.
Description
The utility model relates to a kind of inner tube of a tyre to automobile, tractor, motorcycle, bicycle and motorboat etc. and inflates the air pump of usefulness.
Existing big or small air pump is generally hand push type, promptly with hand the piston of air pump is moved in inflator and gas is sent into the inner tube of a tyre, require great effort very much when its shortcoming is to use, and especially women, children, old man and weak, individual little person are difficult to inflate with this air pump.It is exactly that its leather packing be can't hold out against high pressure that this air pump structurally also has a shortcoming, as easy as rolling off a log damage, and cylinder inner wall degree of finish is poor, and the poor sealing between leather packing and the barrel causes gas leakage, and as untimely use lubricant oil, then leather packing tightens; Too much as lubricant oil, also easily it is squeezed into the inner tube of a tyre, make tube aging.
The purpose of this utility model is to provide a kind of foot-operated air pump, and it is inflated with pin, does not also use leather packing, can remedy the above-mentioned deficiency of existing air pump.
The utility model has cylinder, piston, piston rod, on the cylinder protecgulum Non-return air valve is arranged, it is characterized in that it has a rectangular frame to make underframe, one end of its piston rod is fixed on the rear axle of underframe, along its piston periphery one Yuan Xing Cone degree groove is arranged, be placed with seal ring in this groove, two side arms of arc running-board bracket are connected with the front axle of rectangular base frame, this running-board bracket can rotate around this front axle, on this front axle, spring is housed, it can make between running-board bracket and the underframe and keep open configuration, have a cross bar pass on the cylinder protecgulum projection partly, its two ends are separately fixed on the arc running-board bracket two side arms, this running-board bracket is connected on the front axle of rectangular frame, and it can rotate around this front axle.
The utility model is operated easily, can in tire, inflate with the foot pedals frame, laborsaving, this pump is used the oil resistant rubber seal ring without leather packing, and cylinder inner wall is highly polished, therefore, and when cylinder moves backward, seal ring in the groove also moves backward and magnifies and the inboard wall of cylinder liner sealing, high working efficiency.Use this pump to inflate and to reach 10 barometric pressure, and can prolong the working life of the inner tube of a tyre.
Further specify the utility model below in conjunction with embodiment and accompanying drawing.
Accompanying drawing 1 is an embodiment's of the utility model a structural representation.
Accompanying drawing 2 is its piston, piston rod, ring structure schematic representation.
Cylinder of the present utility model (8) is a cylinder sleeve, it has protecgulum (2) and bonnet (4), circular piston (14) is housed in the cylinder (8), along its periphery circular groove is arranged, in this bottom portion of groove Cheng Cone shape oil resistant rubber seal ring (15) is housed, an end of piston rod (16) is fixed on the rear axle of rectangular frame (7).Cross bar (9) passes the projection part on the cylinder protecgulum (2), and its two ends are separately fixed on the two side arms of arc running-board bracket (3), and this running-board bracket (3) is connected on the front axle of rectangular frame (7), and it can rotate around front axle.Above-mentioned projection partly is equipped with Non-return air valve (10) in (10), and the latter is communicated with gas line (12), and the end of gas line (12) has inflation folder and nut (11).Spring (13) is housed on the front axle of framework (7), and the latter's effect is exactly to make between running-board bracket (3) and the rectangular frame (7) to keep open configuration.Non-return air valve is communicated with pressure gauge (1).In running-board bracket (3) rear end pedal (5) is arranged.The tortuosity of running-board bracket (3) two side arms is selected like this: when running-board bracket (3) rotated, cylinder fixed thereon (8) just in time moved along the direction of piston rod (6).Like this, when with foot-operated pedal (5) down, cylinder sleeve (8) is motion backward just, and piston wherein (14) just is pressed into the inner tube of a tyre with the pressurized air in the cylinder (8) by Non-return air valve, gas line (12).When pin being removed pedal (5), running-board bracket (3) opens under the effect of spring (13), and cylinder (8) travels forward, and air just enters in the cylinder (8) by the inlet hole on the cylinder back cover (4).
Claims (1)
1, a kind of foot-operated air pump, cylinder (8) is arranged, piston (14), piston rod (6), Non-return air valve (10) is arranged on the cylinder protecgulum, it is characterized in that it has a rectangular frame underframe (7), one end of piston rod (6) is fixed on the rear axle of underframe (7), periphery along piston (14) has a circular tapering groove, seal ring (15) is arranged in this groove, two side arms of arc running-board bracket (3) are connected with the front axle of rectangular frame underframe (7), this running-board bracket (3) can rotate around this front axle, spring (13) is housed on this front axle, it can make between running-board bracket (3) and the underframe (7) and keep open configuration, have a cross bar (9) pass on the cylinder protecgulum projection partly, its two ends are separately fixed on two side arms of arc running-board bracket (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92219803 CN2148196Y (en) | 1992-09-19 | 1992-09-19 | Pedal inflating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92219803 CN2148196Y (en) | 1992-09-19 | 1992-09-19 | Pedal inflating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2148196Y true CN2148196Y (en) | 1993-12-01 |
Family
ID=33766974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92219803 Expired - Fee Related CN2148196Y (en) | 1992-09-19 | 1992-09-19 | Pedal inflating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2148196Y (en) |
-
1992
- 1992-09-19 CN CN 92219803 patent/CN2148196Y/en not_active Expired - Fee Related
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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 |