CN2201316Y

CN2201316Y - Pneumatic lifting bicycle cushion

Info

Publication number: CN2201316Y
Application number: CN 94216013
Authority: CN
Inventors: 敖爱东
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-06-25
Filing date: 1994-06-25
Publication date: 1995-06-21
Anticipated expiration: 2004-06-25

Abstract

The utility model relates to a pneumatic lifting bicycle cushion, which is mainly characterized in that a cushion support tube is inserted into a back oblique tube; the lower section of the back oblique tube is an air compressing pipe with sealed two ends; a piston divides the air compressing pipe into upper and lower air cavities; the lower end of a continuous motion rod is connected with the piston, and the upper end of the continuous motion rod is connected with the support tube; the two vent tubes of a pneumatic valve and the upper and the lower air cavities are communicated and fixed on the back oblique tube. A control handle is pressed and the pneumatic valve is started up to make the upper and the lower air cavities be communicated, then the pressure air of the air cavities pushes the piston to lift to make the cushion be lifted, and the cushion can also be descended, because the weight of human body is larger than the push force on which the air acts to the piston. The utility model has simple structure, which can automatically adjust the pressure of the cavities and has the function of shock absorption.

Description

Pneumatic lifting bicycle cushion

The utility model relates to a kind of attachments of a bicycle, is a kind of pneumatic type lifting bicycle saddle cushion.

The bench height of ordinary bicycle was adjusted once fixing being difficult for.And in real life, the height of seat cushion is that difference along with the situation of riding has different requirements to the bicyclist.More the stream of people, often meet on the road of red light and travel, for the safety meter wishes all that generally seat cushion is lower so that pin can keep balance at any time with supportting; And when broad, safe road driving, people wish again seat cushion higher be beneficial to ride fast with laborsaving.Both of these case alternately occurs in riding.Obviously, the seat cushion of ordinary bicycle can not satisfy the requirement that bench height can be adjusted at any time.

The purpose of this utility model just provides a kind of deficiency that can overcome above-mentioned ordinary bicycle seat cushion, lifting bicycle saddle cushion height, that have damping effect at any time a kind of pneumatic type lifting bicycle saddle cushion.

The purpose of this utility model is achieved in that calm the anger for storage the has air pipe of body of the hypomere that utilizes bicycle hypsokinesis inclined tube, and air pipe has seal cover cap in two ends up and down.The support tube that seat cushion is housed inserts its lower end, back from the hypsokinesis inclined tube and links to each other with piston trace upper end.Piston is contained in the air pipe, and air pipe is divided into upper gas chamber and lower air chamber.Piston trace and upper end seal cover cap running-fit.On the present advance expenditure stay tube outer tube wall half garden connected in star is arranged, on the inner tubal wall of hypsokinesis inclined tube top, half garden connected in star is arranged, have the ball that plays the role of positioning just in time twitch only can be arranged between support tube and the hypsokinesis inclined tube mutually and can not rotate making between two grooves.Hypsokinesis inclined tube hypomere has gas port and communicates with upper gas chamber, lower air chamber respectively with following gas port.Pneumatic valve is made up of valve body that has two breather pipes and valve rod, and its two breather pipe is welded on the hypsokinesis inclined tube outer tube wall and communicates with last gas port, following gas port respectively.Valve body is a short tube, and there is seal ring at two ends in the mouth of pipe, also fixes an intermediate seal circle in the middle of short tube is interior, has 2 apertures on the short tube tube wall and communicates with two breather pipes respectively.The intermediate seal circle is between 2 apertures.2 apertures are in the mouth of pipe between the sealed at both ends circle.Valve rod is the thin garden bars in two pluckings centres, and is longer than short tube, and valve rod is inserted in the valve body short tube and the valve body running-fit; The valve rod two ends have banking stop that valve rod can not be come off from valve body fully, and wherein an end is equipped with the hose steel wire rope, and the other end of hose steel wire rope joins with the control handle that is contained on the bicycle directional dish.At the valve rod other end retracing spring is arranged, the elastic force of retracing spring makes valve rod prop up the valve body short tube mouth of pipe to the banking stop that the direction that spring is arranged moves to valve rod one end that the hose steel wire rope is housed; A perhaps end of overstriking valve rod, in valve body, be filled with when calming the anger body, the power that the power with its extrapolation that a thicker end is subjected in valve body is subjected in valve body greater than the end that the hose steel wire rope is housed with its extrapolation, thus make valve rod move to till banking stop that valve rod is equipped with an end of hose steel wire rope props up the valve body short tube mouth of pipe to the direction of an end of overstriking.At this moment, the thick bar part that the seal ring of two ends and centre is all held valve rod tightly in the valve body short tube, two breather pipes can not communicate owing to being sealed in the valve body of intermediate seal circle.When pulling hose steel wire rope band ovable valve stem makes valve rod middle than the thin seal ring that partly mediates, because the intermediate seal circle is middle than thin part greater than valve rod, the generation gap, two breather pipes have just communicated in valve body.Unclamp the hose steel wire rope, valve rod automatically resets under the effect of the effect of spring or pressed gas, and isolated two tracheal gas communicate in valve body.In above-mentioned action, sealed at both ends circle is embraced thick garden, the two ends bar of valve rod all the time in the valve body short tube.Principle of work of the present utility model is: when riding bicycle, control handle is in the normal position, and pneumatic valve cuts out, and its two breather pipe is obstructed in valve body, and promptly the upper and lower air cavity of air pipe is obstructed.At this moment, human weight is by seat cushion, and the body of calming the anger by lower air chamber after piston trace, the piston transmission bears, because pressed gas can be because of human body weight produces bigger volume change, so seat cushion can be in the middle reduction of riding.When the people leaves seat cushion, piston bears upper and lower air cavity gaseous tension, though lower air chamber gas to the pressure of piston greater than the pressure (mainly be because of trace make upper gas chamber gas the exert pressure area of piston reduced) of upper gas chamber gas to piston, (the upper gas chamber volume reduces the gas pressure intensity that has a bit just changed upper and lower air cavity, and pressure increases but piston only moves up; The lower air chamber volume increases, and pressure reduces), thus piston is moved on no longer, so seat cushion not can because of the people leave raise suddenly many.And have the body of calming the anger still to have certain retractility when riding, to play certain cushioning effect, and when needs lifting seat cushion, press control handle tension hose steel wire rope, the breakdown pneumatic valve, the upper and lower air cavity gas of air pipe communicates by pneumatic valve.At this moment: when the people leaves seat cushion, piston rises because of the stressed different meeting in the two sides moving seat cushion of shipper pole that makes progress, the upper gas chamber smaller volume, but pressure can not increase, transferring to lower air chamber because of upper gas chamber gas by pneumatic valve has gone, when seat cushion is raised to correct position, release on control handle, pneumatic valve cuts out, and piston stops to rise, seat cushion also stops to have risen, when human body was sitting on the seat cushion, human weight was greater than the difference of pressure on piston two sides, thereby made seat cushion, piston descends, gas enters into upper gas chamber from lower air chamber by pneumatic valve can not increase the air pressure of lower air chamber, when seat cushion is reduced to a certain position, release on control handle, pneumatic valve cuts out, piston stops to descend, and seat cushion stops to descend.One end of pneumatic valve valve rod can be done the tonifying Qi ozzle, and ozzle screws a tonifying Qi valve inside, and pipe is opened aperture in the end, and is overweight or can be by ozzle tonifying Qi pressurization or venting decompression when kicking the beam when human body.

The utlity model has following advantageous effect: the bicycle external form is changed very little, lifting bicycle saddle cushion easily, visual body weight is adjusted the gaseous tension of pneumatic shuttle voluntarily, structure is reliable, simple, and significant seat cushion shock-absorbing function is arranged.

Below in conjunction with accompanying drawing utility model is described.

Fig. 1 is utility model embodiment one longitudinal diagram

Fig. 2 is utility model embodiment two longitudinal diagrams

Fig. 3 is utility model embodiment three longitudinal diagrams

Fig. 4 is utility model embodiment four longitudinal diagrams

Fig. 5 is a utility model seat support pipe Device for preventing rotation longitudinal diagram

Fig. 6 is a utility model seat support pipe Device for preventing rotation cross-sectional view

Fig. 7 is one of a utility model pneumatic valve section-drawing

Fig. 8 is two section-drawings of utility model pneumatic valve

Fig. 9 is a utility model pneumatic valve work scheme drawing

Figure 10 is the local drawing of utility model pneumatic valve valve rod

Embodiment:

With reference to accompanying drawing, air pipe (4) is the hypomere part of hypsokinesis inclined tube (9), and air pipe lower end seal cover cap (8) is welded on the bottom of hypsokinesis inclined tube (9), and air pipe upper end seal cover cap (7) is fixed on the middle part of hypsokinesis inclined tube (9).Have hole, garden (12) in the seal cover cap (7), seal cover cap (7) overcoat seal ring (13).Cover seal ring (14) in the hole, garden (12).The support tube (2) that seat cushion (1) is housed joins on hypsokinesis inclined tube (9) inserts posterior end and piston trace (6).Piston (5) is contained in the air pipe (4), and air pipe is divided into upper gas chamber (24), lower air chamber (25).Trace (6) passes the back and links to each other in air pipe (4) with piston (5) from hole (12), half garden connected in star (40) is arranged on support tube (2) outer tube wall, hypsokinesis inclined tube (9) top inner tubal wall has half garden groove (41), contain ball (42) between two grooves, ball (42) is pushed down with lid (43), and lid (43) is fixed on hypsokinesis inclined tube (9) tube wall with screw (44).Have gas port (16) on hypsokinesis inclined tube hypomere air pipe (4) tube wall, following gas port (17).Last gas port (16) communicates with upper gas chamber (24), and following gas port (17) communicates with lower air chamber (25).Pneumatic valve (3) is made up of short tube (26) that has breather pipe (18), breather pipe (19) and valve rod (10), breather pipe (18), (19) are welded on hypsokinesis inclined tube (9) outer tube wall and communicate with last gas port (16), following gas port (17) respectively, there are seal ring (27), (28) in two ends in short tube (26) mouth of pipe, also fix an intermediate seal circle (29) in the middle of in the short tube, have aperture (30), (31) on short tube (26) tube wall and communicate with breather pipe (19), (18) respectively.Seal ring (29) is in short tube between aperture (30), the aperture (31).Aperture (30), (31) are all between seal ring (27) and seal ring (28).Valve rod (10) is linked to each other and forms with two thick bars (33), (34) by thin bar (32), and valve rod (10) is inserted in the valve body short tube (26), and respectively there are banking stop (36), (46) in two ends.Thick bar (33) is gone up cover upper spring (35) or is made thick bar (33) thicker than thick bar (34), thick bar (34) links to each other with hose steel wire rope (11), and hose steel wire rope (11) other end joins with the control handle (38) that is contained on the bicycle directional dish (37).For ease of tonifying Qi, thick bar (33) can be made tubulose, in screw tonifying Qi with valve inside (39), the pipe end, have an aperture (47), have on the pneumatic valve together fixing hose steel wire rope (11) because of covering (45) surely.

Embodiment one: the piston of present embodiment (5) is with the inner pipe wall of seal ring (20) direct contact air pipe (4), and upper end seal cover cap (7) is fixed in hypsokinesis inclined tube (9) pipe by screw (48).

Embodiment two: be with a piston tube (22) in the air pipe of present embodiment (4).Piston tube (22) upper end is connected with seal cover cap (7), the lower end is connected with seal cover cap (8), piston (5) is with seal ring (20) and moves in piston tube (22), upper end seal cover cap (7) has the air bleeder (15) that is communicated with breather pipe (18) and upper gas chamber (24), has aperture (23) on piston tube (22) tube wall.

Embodiment three: upper end of the present utility model seal cover cap (7) is fixed in hypsokinesis inclined tube (9) pipe by screw (48).One end of one telescopic pipe (21) is fixed on the piston (5), and its other end is fixed on the tube wall of air pipe (4) lower end.Telescopic pipe (21) inner space is lower air chamber (25).

Embodiment four: upper end of the present utility model seal cover cap (7) is fixed in hypsokinesis inclined tube (9) pipe by screw (48), and upper end seal cover cap (7) has and is communicated with breather pipe (18) and upper gas chamber (24) air bleeder (15).One end of one telescopic pipe (21) is fixed on the piston (5), and its other end is fixed on above the upper end seal cover cap (7).Telescopic pipe (21) inner space is as upper gas chamber (24).

Claims

1, a kind of pneumatic type lifting voluntarily seat cushion by seat cushion (1), support tube (2), piston trace (6), piston (5), bicycle rack hypsokinesis inclined tube (9), upper end seal cover cap (7), lower end seal cover cap (8), pneumatic valve (3), hose steel wire rope (11) is formed, it is characterized in that: the hypomere of hypsokinesis inclined tube (9) is air pipe (4), air pipe lower end seal cover cap (8) is welded on hypsokinesis inclined tube (9) inner bottom part, air pipe upper end seal cover cap (7) is fixed on middle part in the hypsokinesis inclined tube (9), have hole, garden (12) in the middle of the seal cover cap (7), seal cover cap (7) overcoat seal ring (13), cover seal ring (14) in the hole, garden (12), the support tube (2) that seat cushion (1) is housed inserts its lower end, back from hypsokinesis inclined tube (9) and links to each other with piston trace (6) upper end, piston (5) is positioned in the air pipe (4), trace (6) passes its lower end, back and links to each other with piston (5) from hole, garden (12), have gas port (16) on air pipe (4) tube wall, following gas port (17), pneumatic valve (3) is by its breather pipe (18), be fixed on the hypsokinesis inclined tube after the tube wall welding of breather pipe (19) and hypsokinesis inclined tube (9); Pneumatic valve (3) is made up of breather pipe (18), breather pipe (19), short tube (26), valve rod (10), an end has seal ring (27) in short tube (26) mouth of pipe, an other end has seal ring (28), in the middle of in short tube (26) pipe seal ring (29) is arranged, have aperture (30), aperture (31) on short tube (26) tube wall and communicate with breather pipe (19), breather pipe (18) respectively; Between aperture (30) and the aperture (31), aperture (30), aperture (31) are all between seal ring (27) and seal ring (28) in short tube for seal ring (29); Valve rod (10) is connected to form by the thin bar in centre (32) and thick bar (33), thick bar (34), valve rod (10) is inserted in the short tube (26), on the thick bar (34) banking stop (36) is arranged, be connected with hose steel wire rope (11) on the thick bar (34), the other end of hose steel wire rope (11) links to each other with a control handle (38).

2, a kind of pneumatic type lifting bicycle saddle cushion according to claim 1 is characterized in that piston (5) is with seal ring (20), and upper end seal cover cap (7) is fixing by screw (48).

3, a kind of pneumatic type lifting bicycle saddle cushion according to claim 1, it is characterized in that piston (5) is with seal ring (20), one piston tube (22) is arranged in the air pipe (4), piston tube (22) upper end fixing seal lid (7), piston tube (22) lower end is connected with seal cover cap (8), seal cover cap (7) has air bleeder (15), has aperture (23) on piston tube (22) tube wall.

4, a kind of pneumatic type lifting bicycle saddle cushion according to claim 1, it is characterized in that seal cover cap (7) is fixing by screw (48), one telescopic pipe (21) one ends are fixed on the piston (5), and the other end of telescopic pipe (21) is fixed on the tube wall of air pipe (4) lower end.

5, a kind of pneumatic type lifting bicycle saddle cushion according to claim 1, it is characterized in that seal cover cap (7) is fixing by screw (48), have air bleeder (15) on the seal cover cap (7), one end of one telescopic pipe (21) is fixed on the piston (5), and the other end of telescopic pipe (21) is fixed on the seal cover cap (7).

6, a kind of pneumatic type lifting bicycle saddle cushion according to claim 1 is characterized in that the thick bar (33) of valve rod (10) of pneumatic valve (3) is thicker than thick bar (34).

7, a kind of pneumatic type lifting bicycle saddle cushion according to claim 1 is characterized in that being with spring (35) on the thick bar (33) of valve rod (10) of pneumatic valve (3), on the thick bar (33) banking stop (46) is arranged.

8, according to claim 1 or 2,3 or 4,5 or 6,7 described any pneumatic type lifting bicycle saddle cushions, it is characterized in that on support tube (2) outer tube wall garden connected in star (40) being arranged, hypsokinesis inclined tube (9) top inner tubal wall has half garden connected in star (3), ball (42) is arranged between groove (40) and groove (41), ball (42) top has lid (43) to push down, and lid (43) is fixing by screw (44); The fixedly fixed cap (45) of hose steel wire rope (11) is arranged on the pneumatic valve (43); The thick bar (33) of valve rod (10) is a tubulose, a tonifying Qi is arranged with valve inside (39) in the thick bar (33), slightly bottom the bar (33) pore (47) is arranged.