CN2721901Y

CN2721901Y - Structure of bicycle pump

Info

Publication number: CN2721901Y
Application number: CN 200420068510
Authority: CN
Inventors: 吴树木
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-08-26
Filing date: 2004-08-26
Publication date: 2005-08-31
Anticipated expiration: 2014-08-26

Abstract

The utility model provides a bicycle pump structure. The end, which has a piston, of the piston rod can be accommodated in the cylinder to generate relative movement and can not escape from the cylinder, while a socket component is provided with the first end and the second end, which are communicated with each other. The first end is communicated with the interior of the cylinder and the end with a manometer is provided with a tube plug. The second end of the socket component is sleeved on the outer margin of the tube plug to transmit the connected gas between the first end of the socket component and the cylinder to the second end and then to the manometer. One end of a hose is fixedly provided with a filling head and the tube plug at the end of the manometer can be fixedly inserted in the hose so as to achieve the tight fit and leak-proof effect.

Description

A kind of inflator structure

Technical field

The utility model belongs to the pump technical field, relates to a kind of inflator structure.

Background technique

Be engaged in stress-relieving activity to the open air, experience the happy of nature, the optimum instrument that also can take exercises promptly is a bicycle, can drive bicycle moves about unhurriedly mountain forest yes quite satisfied, in leisure, can move again, be that the modern is only the most suitable, therefore dailyly on holiday see the people that move with bicycle, pump during wherein bicycle is equipped with is the indispensable VIO Very Important Object of bicycle knight especially, in case of need, give tyre inflation, so pump importantly can reach best inflated condition, what the structure of pump was afraid of most is exactly gas leakage;

Commonly use on the market and have manometric pump, be that very the easiest generation is lost heart, because gas will produce the loss of trace in air flue channelling process, pressure gauge be set then be make the gas multithread to another passage to pressure gauge, therefore must remain on airtight conditions between pressure gauge and this passage, otherwise gas is quite to be released by the manometric passage of installing, so manometric pump of known tool, in being set, pressure gauge and interchannel seal in the mode of gluing, as shown in Figure 1, wherein pressure gauge stand 95 is provided with a channel 96, these channel 96 tops are to hold hole 97 with an affixed pressure gauge 98, these pressure gauge 98 ends are established a protrusion axle 99 and are inserted holding in the hole 97 of pressure gauge stands 95, both cooperations must produce clearance, this clearance promptly can make the gas leak in the pump, the measured value of pressure gauge 98 can be inaccurate yet, therefore the builder promptly can protruded axle 99 and hold that axis hole cooperates the inner edge gluing that produces clearance between the hole 97, colloid with liquid is filled up clearance, colloid curing can reach the purpose of sealing after air-dry, and behind the solid hexagon socket head cap screw 100 of passage 96 end spiral shells of table power gauge stand 95, also fill up the gap that thread surface cooperates in the mode of gluing, known pump will prevent the gas seal members that adopt the gluing modes or install the rubber material additional in the mode that gas lets out more, just can reach the effect of sealing leakproof.

Gluing process during above-mentioned known pump assembly, want what of amount of gluing, the person just can be affectedly bashful accurately must to have the many years of experience, otherwise the amount of gluing is too many, and liquid goes out the clearance outside, form the miserable condition of sol, quite not attractive in appearance, if get inadequately in the gluing, again can't the complete closed gap, can produce gas leakage equally, so the process of gluing causes the bottleneck in the production, must have seasoned experience person on could gluing just right, otherwise the sol situation takes place in general assembly person easily, have a greatly reduced quality for marketing quality, can't effectively guarantee leakproof again, improved needs are arranged in fact.

The model utility content

The above-mentioned defective that the utility model exists at prior art, and a kind of inflator structure is provided, replace difficulty height and the bad gluing mode of effect with the most easy the quickest direct assembling, reach the most effective leak free design.

The technological scheme that solution the utility model technical problem is adopted is that this inflator structure includes cylinder, piston, piston rod, Coupling, pressure gauge, also include leakage protection device, piston rod one end is installed with a piston, piston sleeve is located in the cylinder, Coupling one end is connected with the inside of cylinder, and the Coupling the other end then is sheathed on the pipe close outer rim, and described leakage protection device comprises pipe close and flexible pipe, pipe close is solidly plugged in the flexible pipe, and the other end is connected with pressure gauge.

This inflator structure mainly is to insert flexible pipe at the taper nose of pressure gauge pipe close, and the end face of taper inserts in the flexible pipe easily, and flexible pipe can shrink again and envelope the nose of pipe close, forms tight airtight space, and reaches quick assembling and the effect that do not leak.

Description of drawings

Fig. 1: be the schematic representation of the necessary gluing of known pump;

Fig. 2: be stereogram of the present utility model;

Fig. 3: be three-dimensional system diagram of the present utility model;

Fig. 4: be whole-cutaway view of the present utility model;

Fig. 5: be the partial enlarged drawing of Fig. 4.

Reference character:

10 vapour, 11 bases, 12 outside threads

13 perforation, 14 stackers, 20 piston rods

21 handles, 22 pistons, 30 loam cakes

31 internal threads, 40 adapters, 41 outside threads

42 O shapes are encircled 43 blind nuts, 44 air flues

45 penetration holes, 50 conduits, 60 pressure gauges

61 pipe closes, 62 O shapes are encircled 63 noses

64 outside threads, 70 pressure gauge stands, 71 perforations

72 block sets, 80 Couplings 81 are vertically held

82 transverse end, 83 conversion adapters, 84 O shapes ring

90 flexible pipes, 91 filling heads, 92 pipe lids

93 internal threads, 94 guidance faces, 95 pressure gauge stands

96 passages 97 hold hole 98 pressure gauges

99 protrude axle 100 screws

Embodiment

Below in conjunction with accompanying drawing the utility model embodiment is described in further detail.

The utility model mainly is that a kind of pump improvement is provided, and please cooperate and consult Fig. 2 and shown in Figure 3, and it comprises:

Cylinder 10, one end are installed with a base 11, and the other end then is provided with outside thread 12 in cylinder 10 outer rims, and wherein base 11 has also laterally provided a perforation 13 with cylinder 10 joints, and cylinder 10 1 sidewalls are provided with a stacker 14 in addition.

Piston rod 20, the one end is installed with leader 21 and is available for users to holding operation, and the other end then is installed with a piston 22.

Loam cake 30, the its inner rim wall is provided with internal thread 31, with corresponding to cylinder 10 end outside threads 12, wherein piston rod 20 has that piston 22 1 ends are suitable to wear this loam cake 30 and stretch into cylinder 10 inside, the internal thread 31 of loam cake 30 is fixed at cylinder 10 outside threads 12, makes piston rod 20 produce vertical relative movement in cylinder 10 and can not deviate from loam cake 30.

Adapter 40, it is L-shaped, a wherein horizontal end outer rim is provided with outside thread 41, these adapter 40 outer rims are arranged with O shape ring 42, cooperate a blind nut 43 lockings for passing its ora terminalis outside thread 41 of cylinder 10 perforation 13 and mat, and adapter 40 is locked in the perforation 13 of cylinder 10, wherein O shape ring 42 closely connects to the structure that can reach leakproof with perforation 13 inwalls, adapter 40 vertical ends then fit in the stacker 14 of cylinder 10 outer walls in addition, and adapter 40 inside also are provided with L-shaped without exception air flue 44, these air flue 44 tops also are provided with a penetration hole 45 and are communicated in the cylinder 10, for gas transmission;

Conduit 50, whole bearing are gone into cylinder 10 outer wall stackers 14, and these conduit 50 1 end covers are fixed in air flue 44 1 ends of adapter 40;

Pressure gauge 60, its bottom are installed with a pipe close 61, and this pipe close 61 is arranged with O shape ring 62 near pressure gauge 60 1 ends, and the other end then is a nose 63, and these nose 63 end faces more form taper, just are provided with outside thread 64 between nose 63 and the O shape ring 62;

Pressure gauge stand 70, its center is equipped with a perforation 71, and when pressure gauge 60 was placed in one, the pipe close 61 of bottom can pass perforation 71 and protrude out outside the pressure gauge stand 70, a side of pressure gauge stand 70 has been set up a block set 72 in addition, these block set 72 suitable outer walls that can be sheathed on cylinder 10;

Coupling 80, it mainly is one "  " shape, and form running through and being communicated with of inner vertically end 81 and transverse end 82, the O shape of wherein vertically holding 81 covers to be fixed in pressure gauge 60 pipe closes 61 is encircled 62 outer rims, be connected by a conversion adapter 83 between 82 of transverse end and the conduit 50, this conversion adapter 83 generally is one " " shape, and two ends all overlap intrinsic O shape ring 84, respectively with the transverse end 82 and the driving fit mutually of conduit 50 1 ends of Coupling 80;

Flexible pipe 90, the one end sets firmly filling head 91, this flexible pipe 90 mainly is that a kind of rubber is soft, and its outer rim is arranged with pipe and covers 92, and these pipe lid 92 inwalls are provided with internal thread 93, and in end formation guidance face 94, can socket flexible pipe 90, when pipe cover the outside thread 64 that its internal thread 93 of 92 mats is screwed together in pressure gauge 60 pipe closes 61 outer walls, the nose of while pipe close 61 can be forced into the inwall of flexible pipe 90, force flexible pipe 90 to strut and tighten the conical surface of pipe close 61 noses 63, and reach airtight construction.

Please continue to consult Fig. 4 and shown in Figure 5, piston rod 20 promotes piston 22 gas in the cylinder 10 is poured into air flue 44 by adapter 40 penetration holes 45 during operation, gas enters the transverse end 82 that changes Coupling 80 behind the conversion adapter 83 over to by conduit 50 again, scurry into pressure gauge 60 pipe closes 61 again with fit, enter again in the flexible pipe 90 and irritate out by filling head 91, wherein please cooperate consult shown in Figure 5, it mainly is taper nose 63 insertions of pressure gauge 60 pipe closes 61, the conoid end face is easily inserted in the flexible pipe 90, and flexible pipe 90 can shrink again and envelopes the nose 63 of pipe close 61, form tight airtight space, so the gas that is transmitted by conduit 50 is sensed by pressure gauge 60 simultaneously, also can pour in the flexible pipe 90 and do not leak.

Claims

1. inflator structure, include cylinder (10), piston (22), piston rod (20), Coupling (80), pressure gauge (60), it is characterized in that also including leakage protection device, piston rod (20) one ends are installed with a piston (22), piston (22) is sheathed in the cylinder (10), Coupling (80) one ends are connected with the inside of cylinder (10), described leakage protection device comprises pipe close (61) and flexible pipe (90), pipe close (61) is solidly plugged in the flexible pipe (90), the other end is connected with pressure gauge (60), and Coupling (80) the other end then is sheathed on pipe close (61) outer rim.

2. inflator structure according to claim 1, it is characterized in that described cylinder (10) one ends are installed with a base (11), the other end is then in the solid loam cake (30) of cylinder (10) outer rim spiral shell, base (11) is with cylinder (10) joint and laterally provided a perforation (13), and cylinder (10) one sidewalls are provided with a stacker (14).

3. inflator structure according to claim 1 is characterized in that described piston rod (20) one ends are installed with leader (21), and the other end then is installed with a piston (22).

4. inflator structure according to claim 1, it is characterized in that described cylinder (10) provides a perforation (13) in conjunction with an adapter (40), adapter (40) outer rim is arranged with O shape ring (62) for the perforation of passing cylinder (10) (13) and cooperate a blind nut (43) locking, and adapter (40) is locked in the perforation (13) of cylinder (10).

5. inflator structure according to claim 4, it is characterized in that the vertical end of described adapter (40) then fits in the stacker (14) of cylinder (10) outer wall, and adapter (40) inside is provided with an air flue (44), this air flue (44) top also is provided with a penetration hole (13) and is communicated in the cylinder (10), this adapter (40) air flue (44) one ends set firmly a conduit (50), and make the whole bearing of conduit (50) go into the stacker (14) of cylinder (10) outer wall.

6. inflator structure according to claim 1 is characterized in that pressure gauge pipe close (61) is arranged with O shape ring (62) near pressure gauge (60) one ends, and the other end then is a taper nose (63).

7. inflator structure according to claim 1, it is characterized in that described pressure gauge (60) is accepted is placed in a pressure gauge stand (70), this pressure gauge stand (70) center is equipped with a perforation (71), bottom pipe close (61) passes perforation (71) and protrudes out outside the pressure gauge stand (70), these pressure gauge stand (70) one sides have been set up a block set (72), and block set (72) is sheathed in the cylinder (10).

8. inflator structure according to claim 1 is characterized in that Coupling (80) is provided with vertical end and transverse end and runs through and be communicated with, and one end cover is fixed in pressure gauge pipe close (61), and the other end then with between the conduit (50) is connected by a conversion adapter (83).

9. inflator structure according to claim 1 is characterized in that flexible pipe (90) outer rim is arranged with a pipe lid (92), and this pipe lid (92) is fixed at pressure gauge pipe close (61) outer wall.