CN2314126Y

CN2314126Y - Electric air pump

Info

Publication number: CN2314126Y
Application number: CN 97229015
Authority: CN
Inventors: 徐葆华
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-10-20
Filing date: 1997-10-20
Publication date: 1999-04-14
Anticipated expiration: 2007-10-20

Abstract

The utility model relates to an electric air pump, which is composed of a casing, a motor, a cylinder liner, a piston, valves, etc. The casing is made of engineering plastics. The motor is arranged in the casing. The motor drives the piston in the cylinder sleeve via a variable-speed driving mechanism. The lower side of the cylinder sleeve is connected with a valve body. An air inlet valve and an exhaust valve are arranged in the valve body. An air pipe at the outside of the exhaust valve is connected with an air delivering leather hose. The utility model has the advantages of small size, light weight (generally within 2 kg), low production cost, reliable performance, convenient operation, etc. The electric air pump is principally suitable for inflating tyres of bicycles, or manpower vehicles, or boosted vehicles, or motorcycles, etc.

Description

Electronic pump

The utility model relates to inflatable tool, is applicable to that the tire of motor-helping car, motorcycle, bicycle, rickshaw and various roadsters is inflated.

The tire of various vehicles need often be inflated, and for tires such as bicycle, rickshaw, motor-helping car or motorcycles, inflatable tool commonly used is manual pump or electronic pump.Characteristics such as manual pump has easy to use, and is simple in structure, and cost is low, but labor intensity is big are inflated effort, and efficient is low again.Electronic pump (or claiming small-sized gas-filled pump), defective such as its advantage is that aeration speed is fast, omits the manpower work, but existing electronic pump exists the volume heaviness, is not easy to carry, and also is not suitable for family and uses, and complex structure, and cost is expensive.

The purpose of this utility model provides a kind of piston by the driven by motor inflator, and volume is small and exquisite, and low cost of manufacture is easy to carry and electronic pump that suitable family uses.

The technological scheme of the electronic pump of the utility model is: be made up of institutes such as casing, motor, cylinder sleeve, piston and valves, adopt engineering plastics or aluminum alloy material to make casing, motor is installed in the casing, the piston of motor in variable transmission mechanism drives cylinder sleeve, cylinder sleeve second line of a couplet valve body, be installed into air valve and outlet valve in the valve body, the outer pass-out tracheae of outlet valve connects the gas transmission leather hose.

Electronic pump of the present utility model, the variable transmission mechanism of its driven by motor is: the driving gear that is positioned on the motor shaft drives driven gear, and driven gear drives eccentric wheel through main shaft, the eccentric wheel drivening rod, connecting rod drives piston.

Electronic pump of the present utility model has tank filler sleeve on its casing, and oil storage felt plate is installed on the top of piston, keeps piston and inboard wall of cylinder liner lubricated, and the glue bowl is installed in the piston bottom.

Electronic pump of the present utility model, the glue bowl of its piston bottom adopt the die casting of oil resistant abrasive rubber to form, and the connecting ring at glue bowl oblique angle is pacified in the pistion recess, good seal performance, and wear resistance is strong, and is easy to maintenance.

Electronic pump of the present utility model, the suction valve in its valve body are that sealing plate is installed on inlet hole, and inlet hole has more than two, and when the piston stroking upward air inlet, descent of piston is closed inlet hole.

Electronic pump of the present utility model, the outlet valve in its valve body are that the valve ball is arranged under relief opening, under the valve ball spring are arranged.Spring is with valve ball closedtop relief opening when piston stroking upward, and air pressure overcomes spring force during descent of piston, gas through relief opening to steam outlet pipe again through the gas transmission leather hose to inflating tire.

Electronic pump of the present utility model has a leather hose storage chamber in the casing of its exhaust side, avoiding not, time spent gas transmission leather hose is dragged to outside the casing.

Electronic pump of the present utility model has an electric wire storage chamber in the bottom of its casing, the time spent is not put into storage chamber with electric wire.

The utility model discloses a kind of electronic pump, available engineering plastics are made casing, also can adopt aluminium alloy casting, and moulding is laborsaving, and is in light weight, and complete machine is generally less than 2Kg, and cost is low.Drive piston by motor and simple driving mechanism, the glue bowl of rubber die casting is installed in the piston, good seal performance, wear resistance is strong, and characteristics such as part convenience are changed in maintenance.Inlet and outlet valve arrangement in the valve body is simple, reliable for effect.In casing, be shaped on electric wire storage chamber and gas transmission leather hose storage chamber, be convenient to take care of and carry.

Fig. 1 is the electronic pump organigram of the utility model;

Fig. 2 is that the electronic pump piston of the utility model cooperates schematic representation with the glue bowl;

Fig. 3 is the electronic pump eccentric wheel structure of a utility model schematic representation.

Below in conjunction with Fig. 1-Fig. 3 embodiment of the present utility model is done detailed explanation.

1, casing; 2, handle aperture; 3, electric wire storage chamber; 4, motor; 5, driving gear; 6, driven gear; 7, main shaft; 8, support; 9, eccentric wheel; 10, connecting rod; 11, oil storage felt plate; 12, piston; 13, wrist pin; 14, glue bowl; 15, cylinder sleeve; 16, leather hose storage chamber; 17, valve ball; 18, valve body; 19, leather hose; 20, spring; 21, inlet hole; 22, sealing plate; 23, tank filler sleeve; 24, connecting ring; 25, groove; 26, pinhole.

The utility model relates to electronic pump.The general engineering plastics that adopt are made casing 1, make compact structure, and are in light weight, and shape is practical again, and as hand-held hole 2, direct molding and forming such as electric wire storage chamber 3 and leather hose storage chamber 16 avoid that various the end of a thread are exposed when not using, and carry more convenient.Motor 4 can be used series excited machine, and input power is only about 100W, and available direct current generator, the 12V power supply, and AC motor in this way, therefore the 220V power supply, according to the service condition difference, selects the different electrical power motor for use flexibly.And load onto barometer, grasp the pressure condition of tire at any time.Other parts adopt aluminium alloy compression casting, and driving gear 5 is installed on the motor shaft, and driving gear 5 drives driven gear 6, and the main shaft 7 in the driven gear 6 is positioned in the support 8, main shaft 7 other end setting-up eccentricity wheels 9, and the pinhole 26 of eccentric wheel 9 is installed pin coupler link 10.Connecting rod 10 drives pistons 12 by wrist pin 13, keeps lubricated in order to make piston and cylinder sleeve 15, at piston 12 tops installation oil storage felt plate 11, can refuel oil storage felt plate from the tank filler sleeve 23 of casing 1, and is very convenient.In lower part of piston 14 (as shown in Figure 2) of glue bowl are installed, the glue bowl adopts the die casting of oil resistant abrasive rubber to form, and has connecting ring 24 peaces to go into pistion recess 25, connects firmly, and sealing, wear-resisting property are good, and it is convenient to change part.Valve body 18 under the cylinder sleeve has suction valve and outlet valve, and the inlet hole 21 of suction valve has a plurality of, on sealing plate 22 is arranged, unidirectional air inlet, the upper and lower motion by piston is moved sealing plate, plays the opening or the sealing of inlet hole.Form outlet valve by valve ball 17 and spring 20 under the relief opening.Suction valve and outlet valve can adopt other structure.The steam outlet pipe of valve body 18 connects the leather hose 19 logical wheel nauseas of inflating and chews.

Claims

1, electronic pump, form by institutes such as casing, motor, cylinder sleeve, piston and valves, it is characterized in that adopting engineering plastics or aluminum alloy material to make casing (1), motor (4) is installed in the casing, the piston (12) of motor in variable transmission mechanism drives cylinder sleeve (15), cylinder sleeve second line of a couplet valve body (18) is installed into air valve and outlet valve in the valve body, the outer pass-out tracheae of outlet valve connects gas transmission leather hose (19).

2, electronic pump as claimed in claim 1, the variable transmission mechanism that it is characterized in that driven by motor is: the driving gear (5) that is positioned on the motor shaft drives driven gear (6), driven gear drives eccentric wheel (9) through main shaft (7), eccentric wheel drivening rod (10), connecting rod drives piston (12).

3, electronic pump as claimed in claim 1 is characterized in that tank filler sleeve (23) is arranged on the casing (1), and oil storage felt plate (11) is installed on the top of piston (12), and glue bowl (14) is installed in the piston bottom.

4, electronic pump as claimed in claim 3 is characterized in that the glue bowl (14) of piston (12) bottom adopts the die casting of oil resistant abrasive rubber to form, and connecting ring (24) peace at glue bowl oblique angle is gone in the pistion recess (25).

5, electronic pump as claimed in claim 1 is characterized in that the suction valve in the valve body (18) is to go up at inlet hole (21) sealing plate (22) is installed, and inlet hole (21) has more than two.

6, electronic pump as claimed in claim 1 is characterized in that the outlet valve in the valve body (18) is that valve ball (17) is arranged under relief opening, spring (20) is arranged under the valve ball.

7, electronic pump as claimed in claim 1 is characterized in that in the casing (1) of exhaust side a leather hose storage chamber (16) being arranged.

8, electronic pump as claimed in claim 1 is characterized in that in the bottom of casing (1) an electric wire storage chamber (3) being arranged.