CN2804428Y

CN2804428Y - Electric three-piston high pressure air pump

Info

Publication number: CN2804428Y
Application number: CN 200520102187
Authority: CN
Inventors: 胡高凑
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-11
Filing date: 2005-05-11
Publication date: 2006-08-09
Anticipated expiration: 2015-05-11

Abstract

The utility model discloses an electric three-piston high pressure inflating pump, which comprises an electric machine (1), a transmission device (2), an eccentric wheel (4), a connecting rod (5), and a connecting seat (17), wherein the connecting rod (5) is hinged with an external cylinder body (9); the connecting seat (17) is fixed with an internal cylinder body (10), the end portion of which is fixed with an external piston (8); the internal part of the internal cylinder body (10) is provided with two piston cylinders (11), the internal parts of which are provided with pistons (13) and piston rods (12); the piston rods (12) are fixed at the internal bottom of the external cylinder (9); the connecting seat (17) is provided with a one-way valve (16) which is communicated with an upper chamber (15) and a gas passage (18); the internal cylinder body (10) and the two piston cylinders (11) form a gas storage chamber (20), and the external piston (8) is provided with a one-way valve (21) which is communicated with the gas storage chamber (20) and a lower chamber (7). After the utility model uses the structure, the utility model has the characteristic of three high pressure inflation pumps, wherein a piston can not generate the gas and can not affect the operation of the other two pistons. The utility model has the advantages of large gas production quantity, triplex inflation, high gas pressure, etc.

Description

The high-pressure aerated pump of electronic three pistons

Technical field

The utility model relates to a kind of electric inflating pump, particularly to the improvement of electric inflating pump.

Background technique

For the ease of inflations such as the tire of Motor Vehicle, bicycle or ball, air cushions, Patent Office of the People's Republic of China discloses a kind of miniature electric air pump on December 18th, 2002, the patent No. is 01271436.4, its structure is made up of motor, power-transmitting unit, cylinder, connecting rod, piston, nozzle assembly, shell, motor is by the to-and-fro motion of power-transmitting unit drivening rod, thereby make the continuous pressurized gas of piston to-and-fro motion in cylinder, directly inflatable substrate is inflated by nozzle assembly.Its deficiency is: the one, because stroke is short, piston is little, gas production is few, and this certainly will prolong inflationtime, accelerating piston wearing and tearing and gas-filled pump heating, reduction of service life; The 2nd, the pump housing has only a piston and cylinder, and gas producing efficiency is low; The 3rd, there is not the high-pressure gas chamber, air pressure is low, just is difficult to satisfy when air pressure requires 0.6 above MPa.

Summary of the invention

For overcoming the above-mentioned disadvantage that existing electric inflating pump exists, problem to be solved in the utility model provide a kind of rational in infrastructure, gas production is big, air pressure is high, the life-span is long, three high-pressure aerated pumps of electronic three pistons that piston is inflated simultaneously.The technological scheme that its technical problem that solves the utility model adopts comprises motor, transmission device, eccentric wheel, connecting rod and support, protective case, connecting base, described rod hinge connection has outer cylinder body, outer cylinder body is arranged in the protective case, be fixed with inner barrel on the connecting base, the end of inner barrel is fixed with outer piston, outer cylinder body is socketed on the inner barrel, outer piston and outer cylinder body are complementary, be provided with two piston/cylinders that are connected as a single entity in the inner barrel, being respectively equipped with piston in two piston/cylinders reaches and the fixing piston rod of piston, piston rod passes the interior end that outer piston is fixed on outer cylinder body, be respectively equipped with one-way valve on the connecting base corresponding with two piston/cylinders, the import of one-way valve communicates with upper chamber, and outlet communicates with air flue on the connecting base, two gas storage chambers of cavity formation between inner barrel and two piston/cylinders, be respectively equipped with one-way valve on the outer piston corresponding with two gas storage chambers, the outlet of one-way valve links to each other with gas storage chamber, and import communicates with lower chambers, and gas storage chamber is communicated with air flue on the connecting base.

In order to prevent the lower chambers gas leakage, described outer piston is provided with the seal ring that cooperates with piston rod, guarantees motion sealing between outer piston and the piston rod.

For the ease of two piston/cylinder air inlets, the joint of described inner barrel and two piston/cylinders is provided with inlet hole.

In order to make the outer cylinder body to-and-fro motion steady, the end of described outer cylinder body is fixed with protecting cover.

After adopting said structure, two piston/cylinders and two gas-filled pumps that synthetic three covers of piston set are worked simultaneously in outer cylinder body and outer piston, the inner barrel, closing three is one, the gas storage that is produced is in the gas storage chamber of inner barrel, gas storage chamber plays the effect of high pressure gas bag, have the high-pressure aerated pump characteristics of three covers, though piston not aerogenesis can not have influence on two pistons works in addition yet; Have rational in infrastructure, advantages such as gas production is big, pressure is high, triple inflations.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the A-A sectional view of Fig. 1.

Fig. 3 is the B-B sectional view of Fig. 1.

Embodiment

Fig. 1, Fig. 2 and shown in Figure 3, specific embodiments for the high-pressure aerated pump of a kind of electronic three pistons of the utility model, it comprises motor 1, transmission device 2, eccentric wheel 4, connecting rod 5 and support 3, protective case 6, connecting base 17, support 3 and protective case 6 fuse, connecting base 17 is fixedlyed connected with protective case 6, eccentric wheel 4 is arranged in the protective case 6, connecting rod 5 one ends and eccentric wheel 4 are hinged, the other end and outer cylinder body 9 are hinged, outer cylinder body 9 is arranged in the protective case 6, be fixed with inner barrel 10 on the connecting base 17, the end of inner barrel 10 is fixed with outer piston 8, outer cylinder body 9 is socketed on the inner barrel 10, outer piston 8 is complementary with outer cylinder body 9, be provided with two piston/cylinders 11 that are connected as a single entity in the inner barrel 10, be respectively equipped with piston 13 in two piston/cylinders 11 and reach the piston rod of fixing with piston 13 12, piston rod 12 passes the interior end that outer piston 8 is fixed on outer cylinder body 9, be respectively equipped with one-way valve 16 on the connecting base 17 corresponding with two piston/cylinders 11, the import of one-way valve 16 communicates with upper chamber 15, outlet communicates with air flue 18 on the connecting base 17, cavity between inner barrel 10 and two piston/cylinders 11 constitutes two gas storage chambers 20, be respectively equipped with one-way valve 21 on the outer piston 8 corresponding with two gas storage chambers 20, the outlet of one-way valve 21 links to each other with gas storage chamber 20, import communicates with lower chambers 7, gas storage chamber 20 is communicated with air flue 18 on the connecting base 17, and gas tube assembly 19 is fixed on the connecting base 17 and with air flue 18 and communicates.For the ease of upper and

lower chamber

15,7 air inlets, on the connecting base 17 and bottom of outer cylinder body 9 is provided with air inlet system, and communicates with upper and

lower chamber

15,7 respectively, and air inlet system can be air inlet shell fragment, one-way valve etc.In order to prevent lower chambers 7 gas leakages, described outer piston 8 is provided with the seal ring 22 that cooperates with piston rod 12, guarantees motion sealing between outer piston 8 and the piston rod 12.For the ease of two piston/cylinder air inlets 11, the joint of described inner barrel 10 and two piston/cylinders 11 is provided with inlet hole 23.In order to make outer cylinder body 9 upper and lower to-and-fro motion steady, the end of described outer cylinder body 9 is fixed with protecting cover 14.

Working procedure of the present utility model is as follows, motor 1 drives eccentric wheel 4 rotations by actuating unit 2, eccentric wheel 4 drives two inner carriers 14 by connecting rod 5 and outer cylinder body 9 pumps, make the back and forth gas of compressing lower chambers 7 of outer piston 8, in outer piston 8 work, inner carrier 12 is also back and forth oppressed the gas of upper chamber 15, the pressurized gas of lower chambers 7 charges into gas storage chamber 20 by one-way valve 21, the pressurized gas of upper chamber 15 is by one-way valve 16, air flue 18 also can charge into gas storage chamber 20, the pressurized gas of gas storage chamber 20 compiles after gas tube assembly 19 is outwards inflated continually through air flue 18, thereby reaches the purpose of inflation.Because two inner carriers 12 and outer piston 8 can be worked respectively simultaneously, pressurized gas is stored in the gas storage chamber 20, therefore, gas production is big, efficient is high, air pressure is high, gas production can improve more than 30%, and pressure can reach more than the 0.8MPa, though one of them piston not aerogenesis can not have influence in addition two pistons works yet, only can influence gas production and efficient, long service life.

Claims

1, the high-pressure aerated pump of a kind of electronic three pistons, comprise motor (1), transmission device (2), eccentric wheel (4), connecting rod (5) and support (3), protective case (6), connecting base (17), it is characterized in that: described connecting rod (5) is hinged with outer cylinder body (9), outer cylinder body (9) is arranged in the protective case (6), be fixed with inner barrel (10) on the connecting base (17), the end of inner barrel (10) is fixed with outer piston (8), outer cylinder body (9) is socketed on the inner barrel (10), outer piston (8) is complementary with outer cylinder body (9), be provided with two piston/cylinders (11) that are connected as a single entity in the inner barrel (10), the piston rod (12) that is respectively equipped with piston (13) in two piston/cylinders (11) and fixes with piston (13), piston rod (12) passes the interior end that outer piston (8) is fixed on outer cylinder body (9), be respectively equipped with one-way valve (16) on the connecting base (17) corresponding with two piston/cylinders (11), the import of one-way valve (16) communicates with upper chamber (15), outlet communicates with air flue (18) on the connecting base (17), cavity between inner barrel (10) and two piston/cylinders (11) constitutes two gas storage chambers (20), be respectively equipped with one-way valve (21) on the outer piston (8) corresponding with two gas storage chambers (20), the outlet of one-way valve (21) links to each other with gas storage chamber (20), import communicates with lower chambers (7), and gas storage chamber (20) is communicated with air flue (18) on the connecting base (17).

2, the high-pressure aerated pump of electronic three pistons according to claim 1, it is characterized in that: described outer piston (8) is provided with the seal ring (22) that cooperates with piston rod (12).

3, the high-pressure aerated pump of electronic three pistons according to claim 1 and 2 is characterized in that: described inner barrel (10) is provided with inlet hole (23) with the joint of two piston/cylinders (11).

4, the high-pressure aerated pump of electronic three pistons according to claim 3, it is characterized in that: the end of described outer cylinder body (9) is fixed with protecting cover (14).