CN2706600Y - Leading double pipe high-pressure inflator - Google Patents

Abstract

The utility model discloses a leading double pipe high-pressure inflator, comprising a handle (1), an outer tube (2), an inner tube (6), a piston rod (3), an outer piston (5), an inner piston (11), a seat (15), a one-way valve (14) and an inflation tube assembly (13). A guiding rail (7) with a gas vent (9) is arranged on the outer wall of the inner tube (6); the upper end of the gas vent (9) is connected with an upper chamber (4) through the outer piston (5), and the lower end is communicated with an outer one-way valve (16) arranged on the seat (15); the other end of the outer one-way valve (16) is connected with a gas way (17). After adopting the structure, the leading double pipe high-pressure inflator solves the problems of swaying and twisting causing by the outer tube (2) and the piston rod (3) of all the air pumps doing up and down movement, adopts two-way type gas supply, which is formed into integration, has the characteristic of the double inflator, even if one piston leaks gas and cannot work, the other one cannot be affected, and has the advantages of simple and reasonable structure, light weight, large gas production, long using life, double inflation and such.

Description

Two-tube gas cylinder leads

Technical field

The utility model relates to a kind of improvement of hand pump, particularly a kind of two-tube gas cylinder.

Background technique

For the ease of bicycle, motorcycle, the tyre inflation of vehicles such as tricycle, Patent Office of the People's Republic of China discloses a kind of novel pump on April 22nd, 1998, the patent No. is 96240985.5, its structure is that the inner barrel that an end has outer piston is set in a big slightly outer cylinder body, a piston is arranged in the inner barrel, air-guide standpipe passes the intercommunicating pore on the outer piston, one end is fixed on the upper base of outer cylinder body, the other end is connected with intercommunicating pore on the inner carrier, air-guide standpipe has pore near an end of upper base, the upper base of outer cylinder body is provided with one-way valve, and the other end of inner barrel sets out valve.When being characterized in utilizing the pump of this structure, inside and outside cylindrical shell is inflated through outlet nozzle after lower inner cavity converges by inside and outside piston while aerogenesis, and gas production is big, efficient is high; Its deficiency is: the one, because matching gap is bigger between the inner and outer pipe, when outer tube moves up and down, can produces and wave, reverse, and make the seal ring on the inside and outside piston produce torsional deformation, increase frictional resistance, accelerate seal ring and damage; The 2nd, the pressurized gas of the generation of last inner chamber enters lower inner cavity by air-guide standpipe, increases the resistance to motion of inner carrier; The 3rd, as long as there is a piston to leak air, just can't use.

Summary of the invention

For overcoming the above-mentioned disadvantage that existing hand pump exists, problem to be solved in the utility model provide a kind of simple and reasonable, feel is light, gas production is big, the life-span is long, the two-tube gas cylinder of the guiding of dual inflation.The technological scheme that its technical problem that solves the utility model adopts comprises handle, outer tube, interior pipe, piston rod, outer piston, inner carrier, base, one-way valve and gas tube assembly, the coaxial setting of outer tube and piston rod also is fixed on the handle, interior pipe is fixed on the base, pipe top in outer piston is fixed on, outer tube sleeve connects on inner pipe, piston rod passes the outer piston center hole and fixes with the inner carrier that is provided with on inner pipe, the bottom of outer tube is fixed with bottom, one-way valve one end that is arranged on the base communicates with lower chambers, the other end links to each other with air flue on the base, the gas tube assembly is fixed on the base and with air flue and communicates, the outer wall of pipe is provided with the guide rail that has gas port in described, the gas port upper end links to each other with upper chamber by outer piston, the lower end communicates with outer one-way valve on being arranged on base, and the other end of outer one-way valve links to each other with air flue.

In order to reduce gap between outer tube and the interior pipe, keep outer tube to move up and down steadily, described bottom is provided with the guide groove that is complementary with guide rail.

In order to prevent upper chamber's 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 interior pipe air inlet, described interior pipe top is provided with inlet hole.

In order to make inflator produce high pressure, described base is provided with the gas receiver that communicates with air flue.

The pressure gauge of energy display barrel internal pressure is housed on the described gas receiver, is convenient to observe inflation pressure.

After adopting said structure, the outer wall of interior pipe is provided with the guide rail that has gas port, the bottom that is fixed on the outer tube is provided with the guide groove that is complementary with guide rail, makes outer tube and the piston rod Shi Buhui that moves up and down produce and to wave, to reverse, and has solved the common problem that exists of all hand pumps; Upper chamber and lower chambers are inflated gas receiver by outer one-way valve and one-way valve respectively, unite two into one, and have the characteristic of dual inflator, and one of them blow-by of piston can not have influence on another pistons work; Have simple and reasonable, advantages such as feel is light, gas production is big, the life-span is long, dual inflation.

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.

Embodiment

Illustrated in figures 1 and 2, the specific embodiments of two-tube gas cylinder leads for the utility model is a kind of, it comprises handle 1, outer tube 2, interior pipe 6, piston rod 3, outer piston 5, inner carrier 11, base 15, one-way valve 14 and gas tube assembly 13, outer tube 2 and piston rod 3 coaxial settings also are fixed on the handle 1, interior pipe 6 is fixed on the base 15, pipe 6 tops in outer piston 5 is fixed on, manage on 6 in outer tube 2 is socketed in, pipe 6 tops are provided with inlet hole 21 in described, piston rod 3 passes outer piston center hole and fixing with the inner carrier 11 that is arranged on the interior pipe 6, described outer piston 5 is provided with the seal ring 20 that cooperates with piston rod 3, the bottom of outer tube 2 is fixed with bottom 10, one-way valve 14 1 ends that are arranged on the base 15 communicate with lower chambers 8, the other end links to each other with air flue 17 on the base 15, gas tube assembly 13 is fixed on the base 15 and with air flue and communicates 17, the outer wall of pipe 6 is provided with symmetrical guide rail 7 in described, be provided with gas port 9 in the guide rail 7, gas port 9 upper ends link to each other with upper chamber 4 by outer piston 5, the lower end communicates with outer one-way valve 16 on being arranged on base 15, the other end of outer one-way valve 16 links to each other with air flue 17, described bottom 10 is provided with the guide groove 12 that is complementary with guide rail 7, described base 15 is provided with the gas receiver 19 that communicates with air flue 17, and the pressure gauge 18 of energy display barrel internal pressure is housed on the described gas receiver 19.

Claims (6)

1, the two-tube gas cylinder of a kind of guiding, comprise handle (1), outer tube (2), interior pipe (6), piston rod (3), outer piston (5), inner carrier (11), base (15), one-way valve (14) and gas tube assembly (13), outer tube (2) and the coaxial setting of piston rod (3) also are fixed on the handle (1), interior pipe (6) is fixed on the base (15), outer piston (5) is fixed on interior pipe (6) top, outer tube (2) is socketed on the interior pipe (6), piston rod (3) passes outer piston center hole and fixing with the inner carrier (11) that is arranged on the interior pipe (6), the bottom of outer tube (2) is fixed with bottom (10), one-way valve (14) one ends that are arranged on the base (15) communicate with lower chambers (8), the other end links to each other with air flue (17) on the base (15), gas tube assembly (13) is fixed on communicate on the base (15) and with air flue (17), it is characterized in that: the outer wall of pipe (6) is provided with the guide rail (7) that has gas port (9) in described, gas port (9) upper end links to each other with upper chamber (4) by outer piston (5), the lower end communicates with outer one-way valve (16) on being arranged on base (15), and the other end of outer one-way valve (16) links to each other with air flue (17).

2, the two-tube gas cylinder of guiding according to claim 1 is characterized in that: described bottom (10) is provided with the guide groove (12) that is complementary with guide rail (7).

3, the two-tube gas cylinder of guiding according to claim 1 and 2 is characterized in that: described outer piston (5) is provided with the seal ring (20) that cooperates with piston rod (3).

4, the two-tube gas cylinder of guiding according to claim 3 is characterized in that: pipe (6) top is provided with inlet hole (21) in described.

5, the two-tube gas cylinder of guiding according to claim 4 is characterized in that: described base (15) is provided with the gas receiver (19) that communicates with air flue (17).

6, the two-tube gas cylinder of guiding according to claim 5 is characterized in that: the pressure gauge (18) that energy display barrel internal pressure is housed on the described gas receiver (19).

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