CN2179473Y - Concealed boosting inflator for bicycle - Google Patents

Abstract

The utility model relates to a concealed boosting inflator for the bicycle. The back straight pipe of a bicycle triangular frame is used as an inflator body, a saddle is used as the handle of the inflator, a saddle pipe is used as a piston rod, and a piston mechanism is formed by the firm connection of a joint and a lengthened piston. A pumping chamber which is composed of a one-way valve and the shell of an air storage chamber is arranged on the inner lower part of the back straight pipe of the bicycle triangular frame, and is positioned and fixed through an air guiding pin. The air with pressure in the pumping chamber is filled in the tyre through a small hole on the air guiding pin, an air delivery pipe, and an inflating nozzle which is arranged on the other end of the air delivery pipe. The upper part of the inflator body is provided with a tightener which can regulate and fix a saddle pipe on a suitable height.

Description

Concealed boosting inflator for bicycle

The utility model relates to a kind of inflator of bicycle tyre.

As everyone knows, traditional bicycle Boost bicycle pump is a kind of outer inflator of car body that is independent of, and its inconvenience is carried, and brings inconvenience therefore for the inflation of bicycle.Some micro pump or micro air pump also because of efficient is too low or too expensive, are difficult to be accepted extensively by people.

The present invention is in order to overcome the above-mentioned shortcoming of prior art, and having conceived a kind of being installed in does not influence the bicycle of bicycle outward appearance recessive type Boost bicycle pump again on the bicycle.It utilizes the back straight tube of bicycle tripod as air cylinder dexterously; Seatpillar is as piston rod, and it is connected with the piston of lengthening by joint, constitutes a piston mechanism; Supercharging device places the bottom in the straight tube (abbreviation straight tube) behind the bicycle tripod, and it can play pressurization by one-way valve; Be equipped with tightener again, upper limiter and pneumatic tube etc. are parts in addition, have formed a recessive type Boost bicycle pump.

When tire need be inflated, earlier the tightener handle is unscrewed, (it is fixed on the seatpillar straight only saddle, the handle that is equivalent to the Boost bicycle pump piston rod) till the energy easy on and off is pressed, again the inflation of pneumatic tube one end is chewed and be spun on the tire valve, press saddle then up and down, can inflate, thereby thoroughly broken away from the former appearance that the bicycle inflation must rely on the outer inflator of car to finish, this is a big technological progress beyond doubt for the China of bikedom.

Finished the enforcement of installing according to above-mentioned design inventor on a bicycle, assembly process is as follows:

Unload lower saddle seat tube (can connect saddle unloads with seatpillar) earlier, boring upper limiter aperture and air-guide pin positioning hole (φ 5mm) on the straight tube behind the bicycle tripod earlier respectively by the design size requirement, and deburring, install the tightener (upper limiter is welded on the short tube of tightener) that has upper limiter then at upper limiter aperture position, again with special tool with bicycle tripod after crator in the straight tube (abbreviation straight tube) even polishing out, coat lubricating grease, to assemble the air-storage chamber housing location and installation of one-way valve and seal ring in the straight tube bottom (position of the air-guide pin positioning hole that has promptly bored), inserting air-guide pin is then also fixed, threaded end at air-guide pin connects pneumatic tube again, at last in the piston mechanism insertion straight tube that the seatpillar (piston rod) that will be connected with the piston of lengthening by joint assembles, screw tightener with handle after adjusting the required height of saddle, assembling is promptly accused and is finished.Process screw hole on the one-way valve aims at installation air-storage chamber housing and is provided with, and just can easily the air-storage chamber housing be placed in the position that needs after it connects long screw bar special tool.Because above-mentioned special tool all is a kind of simple tools, so be omitted.

Further illustrate content of the present utility model below in conjunction with accompanying drawing.

Fig. 1 is the assembly sectional view of the utility model device.

Fig. 2 is the sectional view of tightener.

Fig. 3 is the partial sectional view of air-guide pin.

Wherein:

1---piston rod, i.e. Seat pillar of bicycle (abbreviation seatpillar).

2---air cylinder, i.e. straight tube (abbreviation straight tube) behind the bicycle tripod.

3---tightener.

4---joint, its end is on the piston that is threaded in lengthening, and the other end then is a tight fit in the seatpillar.

5---the piston (abbreviation piston) of lengthening.

6---O type circle, it has two, as the piston ring of lengthened piston.

7---one-way valve (buyable), screw thread and air-storage chamber housing on it are affixed.

8---the air-storage chamber housing; Form the pumping chamber by air-storage chamber housing and one-way valve 7; Air-guide pin passes across its aperture portion (air-guide pin patchhole).

9---air-guide pin, have gas port a, b on it, air-storage chamber housing 8 is positioned at the bottom of air cylinder 2 by air-guide pin.

10---seal ring, there are two, the hole between air-storage chamber housing 8 and the air-guide pin 9 can be sealed with it.

11---pneumatic tube (outsourcing piece), its end is fixed on the air-guide pin with clip, and the other end is connected with inflation and chews (commercially available outsourcing piece), and pneumatic tube length is advisable with tyre inflation before and after convenient.

12---the O RunddichtringO, there are two, place the groove at air-storage chamber housing cylindrical two ends respectively, can guarantee the excellent sealing between air-storage chamber housing 8 and the air cylinder 2.

13---dead bolt.

14---snap.

15---lock housing, it is welded on the tightener short tube.Constitute upper limiter by lock housing (15), snap (14), dead bolt (13) three other parts, it can prevent that not only piston (5) from skidding off, and is positioned at tightener the outside on air cylinder top simultaneously from air cylinder.

16---special bolt, be respectively arranged with the fine thread of M10 * 1.5, M8 * 1 on it, a threadless end is affixed by pin and handle.

17---handle, it is fixed in an end of special bolt by pin.

18---nut M10 * 1.5, it is welded on the ear of tightener short tube.

19---nut M8 * 1, it is welded on another ear of tightener short tube.

20---have the tightener short tube that cracks (being called for short the tightener short tube) of two ears, be welded with upper limiter on it.Be welded with nut M10 * 1.5 and nut M8 * 1 on its two ears respectively.

As seen from Figure 1:

The said bicycle recessive type of the utility model Boost bicycle pump, except pneumatic tube, remaining in addition parts be hidden in behind the bicycle tripod in the straight tube below bicycle saddle.Said Boost bicycle pump is mainly formed by other component-assembled such as air cylinder (2), piston mechanism, pumping chamber, gas transmission system and tightener (3) and upper limiter.

Wherein: air cylinder (2) is a straight tube behind the bicycle tripod.Piston mechanism by piston rod (1) with the lengthening piston (5) by affixed the forming of joint (4), and be installed in the air cylinder (2) as an one-piece element, but nationality helps external force axially reciprocating along air cylinder (2), two O type circles (6) are set as piston ring on the cylindrical of the piston (5) of lengthening, to guarantee piston tightness when reciprocating in air cylinder (2), wherein piston rod (1) is a Seat pillar of bicycle.The pumping chamber is assembled by one-way valve (7) and air-storage chamber housing (8), two end places at the cylindrical of air-storage chamber housing (8) are provided with two O RunddichtringOs (12) respectively, can guarantee sealing between pumping chamber and the air cylinder, middle part at air-storage chamber housing (8) is provided with the air-guide pin patchhole, air-guide pin (9) can insert wherein easily, and the hole between air-storage chamber housing (8) and the air-guide pin (9) is sealed with seal ring (10), whole pumping chamber is arranged on the bottom of air cylinder (2), and is located by air-guide pin.Gas transmission system is chewed institute by air-guide pin (9), pneumatic tube (11) and the inflation of being located at the pneumatic tube the other end and is formed, and the body of calming the anger of having in the pumping chamber can be chewed the injection tire by the aperture a on the air-guide pin (9) and b, pneumatic tube (11) and the inflation that is arranged at the pneumatic tube the other end.

As seen from Figure 2:

Tightener (3) is assembled by all parts in addition of the tightener short tube (20) that cracks, nut (18), nut (19), special bolt (16) and the handle (17) that have two ears, also set up upper limiter (it can play the role of positioning) thereon, whole tightener (3) is sleeved on the top of air cylinder (2) as parts, dead bolt (13) with upper limiter is located, produce tight power with special bolt (16) and handle (17) relative movement and be fixed on the air cylinder (2), the tension force of generation is unclamped.

Upper limiter is assembled by lock housing (15), snap (14), dead bolt (13) three other parts, and its function is also to prevent that except tightener (3) is positioned at the top of air cylinder (2) piston from skidding off from air cylinder (2).

As seen from Figure 3:

Air-guide pin has aperture a, b on (9), and the body of calming the anger in the pumping chamber can be derived along aperture a and b.One end of air-guide pin (9) is provided with screw thread, and available nut is fixed on the air cylinder (2), so as not to possible owing to improper use in long-term the use, and clamp-on in the air cylinder.

In a word, according to above-mentioned design, the bicycle recessive type Boost bicycle pump that content that accompanying drawing is showed and said assembly process are made has following advantage through facts have proved:

(1). owing to make full use of the in addition part and the straight tube inner space of bicycle self, make the said Boost bicycle pump of the utility model have in light weight, cost is low, good concealment, and can keep outward appearance U.S. of bicycle.

(2). inflation is convenient, and is time saving and energy saving.

(3). the maximum pressure of pumping chamber can reach 1MPa.

(4). adaptability is good, all can install regardless of new car, used car.

Claims (3)

1, a kind of bicycle recessive type Boost bicycle pump, it mainly forms of the present utility model being characterised in that by air cylinder, piston mechanism, pumping chamber, all component-assembled in addition of gas transmission system:

(1). said air cylinder (2) is a straight tube behind the bicycle tripod;

(2). said piston mechanism, and is placed in the air cylinder (2) by joint (4) and affixed the forming of piston rod (1) by the piston (5) of lengthening, and piston rod wherein (1) is a Seat pillar of bicycle;

(3). said pumping chamber is made up of one-way valve (7) and air-storage chamber housing (8), and it places the bottom in the air cylinder (2) and is located by air-guide pin (9);

(4). said gas transmission system is chewed institute by air-guide pin (9), pneumatic tube (11) and the inflation that is arranged at the pneumatic tube the other end and is formed, and has aperture a and b on air-guide pin (9).

2, Boost bicycle pump as claimed in claim 1 is characterized in that air cylinder top is provided with tightener 3.

3,, it is characterized in that air cylinder top is provided with upper limiter as claim 1,2 described Boost bicycle pumps.

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