CN201102587Y

CN201102587Y - Shock-proof adjuster of bicycle

Info

Publication number: CN201102587Y
Application number: CNU2007201253760U
Authority: CN
Inventors: 王友仁
Original assignee: Fu Luong Hi Tech Co Ltd
Current assignee: Fu Luong Hi Tech Co Ltd
Priority date: 2007-08-22
Filing date: 2007-08-22
Publication date: 2008-08-20
Anticipated expiration: 2017-08-22

Abstract

A bicycle damping adjuster is arranged below a bicycle chair pad so as to adjust the height of the chair pad, including a hollow outer tube, an inner tube unit, a piston unit to change the height relatively to the inner tube unit and a control valve. The inner tube unit includes an inner tube axially arranged in the outer tube for defining a pressure space and a seal valve base with a valve channel integrally formed by plastic and arranged between the top of the inner tube and the outer tube. The control valve is used to communicate or seal the valve channel and the pressure space and includes a motion lever movably inserted in the seal valve base in the axial direction and a control piece for driving the motion lever to make axial movement. The bicycle damping adjuster provided by the utility model has the advantages of simple components, a small number of components and convenient assembly.

Description

The automatic shock-proof adjuster

Technical field

The utility model relates to a kind of automatic shock-proof adjuster, and particularly relate to a kind of pressure apparatus that utilizes and adjust bicycle chair cushion height, and with the automatic shock-proof adjuster of shock-proof effect.

Background technology

Many kinds of bicycle saddle cushion height adjusters are arranged on the market, mainly are the telescopic actions that is arranged at the air pressure rod between seat cushion and car body by, reach the purpose of adjusting bench height.Consult Fig. 1, Fig. 2, Taiwan patent announcement a kind of " structure-improved of bicycle saddle cushion pipe " that number No. 399551 novel patent provided for example, comprise: fixing outer tube that combines with car body 81, metal expansion pipe that can in this outer tube 81, move up and down 82, positioning seat that links this telescopic pipe 82 and the unshowned seat cushion of figure 85, metal inner pipes 83 of being located at movably synchronously in the telescopic pipe 82 with this telescopic pipe 82, and one be located in pipe 83 inner and can relatively should interior piston rod 84 of managing 83 modulation height.Pipe 83 tops are provided with a metal pedestal 831, and are arranged on metal valve body 832, in this pedestal 831 and can upwards be extended through throw rod 833, in the valve body 832 and be located at the spacer 835 that the push rod 834, of throw rod 833 apical margins is set in these throw rod 833 root edges in this, and one compresses these push rod 834 apical margins and can be pulled to drive the swing arm 835 that push rod 834 and throw rod 833 move up and down.Be communicated with or block its internal gas space by these members are set in interior pipe 83, to reach the purpose of adjusting bench height.

Though above-mentioned bicycle saddle cushion pipe can be used to adjust bench height, many, the complex structure of the INT COMP of this bench hassock tube, and then produce the inconvenient shortcoming of assembling, so the design of above-mentioned bicycle saddle cushion pipe still remains to be improved.

The utility model content

The purpose of this utility model is to provide a kind of member simple automatic shock-proof adjuster.

The utility model automatic shock-proof adjuster, be installed in the chair cushion below of a bicycle, this bicycle comprises a last mount pad that combines with the chair cushion interlock, and following mount pad that is fixedly located in mount pad below on this, this automatic shock-proof adjuster comprises: pipe unit, a piston unit in the outer tube of a hollow,, and a control cock.

This outer tube is can be installed in this time mount pad and top up or down to link upward mount pad.Should comprise an interior pipe that is located in the outer tube and defines an air pressure space by interior pipe unit, and reach one and be installed between this interior pipe top and outer tube and that the sealing valve seat had a valve road that is communicated with the top in this air pressure space by integrally moulded seal valve seat.

This piston unit comprise one from interior pipe unit axially stretch out outer tube and can be relatively should in pipe unit change piston rod highly, and piston unit with this air pressure space community make between the upper and lower every one first spatial portion and one second spatial portion.This control cock is used for being communicated with or sealing these valve roads and first spatial portion, and comprise that one can insert the throw rod of stretching in the sealing valve seat up or down, and one is installed on this in mount pad and compresses this throw rod and can drive the control piece that this throw rod moves up and down.

The beneficial effects of the utility model are: by the design of control cock, make the height of outer tube and interior pipe unit can adjust and drive the chair cushion lifting, and this control cock is to cooperate with this integrated seal valve seat, the integrated design of described seal valve seat is to replace the combination of two members of pedestal and valve body in the past, so the utility model integrated member is simple, easy to assembly.

Description of drawings

Fig. 1 is an assembled sectional view, shows " structure-improved of bicycle saddle cushion pipe " that patent announcement number No. 399551 patent case in Taiwan provided;

Fig. 2 is a three-dimensional exploded view, shows the structure improved partial component of this bicycle saddle cushion pipe;

Fig. 3 is an assembled sectional view, and the marriage relation of a most preferred embodiment of demonstration the utility model automatic shock-proof adjuster and the part member of a bicycle shows that simultaneously a control cock of this most preferred embodiment is positioned at a detent position;

Fig. 4 is a seal valve seat of this most preferred embodiment and the three-dimensional exploded view of a throw rod;

Fig. 5 is the cutaway view of a similar Fig. 3, shows that simultaneously this control cock is positioned at one and is communicated with the position.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is elaborated:

Consult Fig. 3, Fig. 4, Fig. 5, a most preferred embodiment of the utility model automatic shock-proof adjuster, be mounted in chair cushion (figure does not show) below of a bicycle, described bicycle also comprises a last mount pad 72 that combines with the chair cushion interlock, and one be located at interval at this chair cushion below and with the following mount pad 73 of bicycle body's secure bond, this time mount pad 73 comprises a leg 731 that defines an axle track 733, and level is attached at these leg 731 root edges and has the diapire 732 of a perforation 734.

This automatic shock-proof adjuster comprises: the piston unit 3, in outer tube 1, the one coaxial interior pipe unit 2, that is fixedly installed in the outer tube 1 of a hollow can be installed in with moving axially in the pipe unit 2 is installed in outer tube 1 bottom and is arranged on the end block 5 of leakproof ring seat 4 bottoms against the leakproof ring seat 4, of interior pipe unit 2, and one be arranged in the control cock 6 at pipe unit 2 tops.

Described outer tube 1 be along a central axis around setting, and can be installed in up or down in the axle track 733 of this time mount pad 73, and the top of outer tube 1 links and should go up mount pad 72.

Should in pipe unit 2 have one with outer tube 1 separately the earth's axis be located in the outer tube 1 and the interior pipe 21, that defines an axial air pressure space 20 is formed on the peripheral flow channel 22 with 1 of outer tube in air pressure space 20 at interval, and one is installed in this interior seal valve seat 23 of managing 1 of 21 tops and outer tube.This flow channel 22 have one be formed in the vertical section 221 of

pipe

21 and 1 of outer tube, reach between the end face of a bottom that is formed on vertical section 221 and leakproof ring seat 4 and be communicated with following logical section 222 of 20 bottoms, air pressure space.

Sealing valve seat 23 is one-body molded by plastic material, and comprise one around the stepped valve wall 24 of a central axis and surface, described valve wall 24 have three between the upper and lower every and the circular rabbet that radially dwindles 241, a valve road 242 that axially connects and can be communicated with the top in this air pressure space 20, and one radially connect and can connect the intercommunicating pore 243 of this valve road 242 and vertical section 221 apical margins of this flow channel 22.And described circular rabbet 241 is can be distinctly sheathed for a sealing ring 25, and the inner peripheral surface of pipe 21 fits tightly in making this valve wall 24 and being somebody's turn to do.

This piston unit 3 is mounted in the interior pipe unit 2, and can change height with respect to interior pipe unit 2, and comprise that the piston rod 31, that passes leakproof ring seat 4 and end block 5 and down stretch out the perforation 734 of outer tube 1 bottom and this time mount pad 73 is fixed in the piston 32 on the top of piston rod 31, and one is arranged on these piston rod 31 bottoms with piston rod 31 and this time mount pad 73 securing holders 33.This piston 32 be can with pipe unit in this 2 airtight inner peripheral surface that is embedded in this pipe 21 in ground that relatively moves, and with air pressure space 20 separate between the upper and lower every one first spatial portion 201 and one second spatial portion 202, described first, second spatial portion the 201, the 202nd is perfused with gas respectively.

This control cock 6 comprises that one can insert the throw rod of stretching in valve road 242 61 with moving axially, and one be installed in the control piece 62 that in the mount pad 72 and bottom on this compresses this throw rod 61, and this control piece 62 can be pulled to drive this throw rod 61 to move up and down.Described throw rod 61 has an axially extended extension rod section 611, and one be connected these extension rod section 611 root edges and radially enlarged footpath and expand section 612, two radial depressions positions of this extension rod section 61 can be distinctly sheathed for a sealing ring 613, to reach airtight effect.And this control piece 62 comprise one from going up but mount pad 72 extends and the pressure section 621 of these throw rod 61 apical margins of contact, and portion of pulling 622 of tiltedly stretching downwards and outwards from these pressure section 621 outer ends and can be pulled.

When the utility model is used for adjusting height, when this control cock 6 is positioned at as shown in Figure 3 detent position, the length that these throw rod 61 apical margins expose to this outer tube 1 is longer, and throw rod 61 draught excluder roads 242 and intercepting being communicated with of this

air pressure space

20 and 22 of flow channels, gas can't flow, so the whole height of this automatic shock-proof adjuster is constant.

When the portion of pulling 622 of this control piece 62 is upwards pulled, its pressure section 621 is driven and is compressed this throw rod 61 apical margins downwards, throw rod 61 is moved down and be positioned at as shown in Figure 5 one and be communicated with the position, at this moment, the footpath of this throw rod 61 is expanded section 612 and is broken away from these valve roads 242 downwards, this air pressure space 20 is communicated with via this valve road 242 with flow channel 22 and can adjusts height of the present utility model.

When the application of force with chair cushion toward pressing down, gas in this first spatial portion 201 can be upwards via the vertical section 221 of valve road 242, intercommunicating pore 243, flow channel 22 toward current downflow, and via entering in second spatial portion 202 for logical section 222 down, with by gaseous tension pushing tow piston 32, make interior pipe unit 2, control cock 6 drive chair cushion with outer tube 1 and move down with respect to piston unit 3.Stop the application of force or the application of force behind this chair cushion with upwards pulling of chair cushion if press down, be subjected to the gaseous tension effect in air pressure space 20, the gas of this second spatial portion 202 can up flow in first spatial portion 201 via flow channel 22 automatically, and pipe unit 2 in making, control cock 6 and outer tube 1 can move up and chair cushion is raise with respect to piston unit 3.

Certainly, design of the present utility model can also provide the shock-absorbing effect, when bicycle drives through pit or outstanding ground, pipe units 2 in these, control cock 6 is given a shock with outer tube 1 and move down with respect to piston unit 3, and cushion external force by the gas flow in air pressure space 20, to reach shock-proof effect.Because its shock-absorbing manner of execution is general known action, so no longer describe in detail.

By above explanation as can be known, the utility model automatic shock-proof adjuster is by the design of control cock 6, make outer tube 1 can adjust height to drive the chair cushion lifting, and this control cock 6 is to cooperate with this integrated seal valve seat 23, described seal valve seat 23 integrated designs, can replace the pedestal of aforementioned Taiwan patent announcement number No. 399551 patent case and the combination of two members of valve body,, reach its purpose really so the utility model integrated member is simple, easy to assembly.

Claims

1. automatic shock-proof adjuster, be installed in the chair cushion below of a bicycle, described bicycle comprises a last mount pad that combines with the chair cushion interlock, and following mount pad that is fixedly located in described upward mount pad below, described automatic shock-proof adjuster comprises: one can be installed in the described mount pad down and the described outer tube of going up the hollow of mount pad of top binding up or down, one comprises that an axle is located in the outer tube and defines the interior pipe unit of the interior pipe in an air pressure space, and piston unit, described piston unit comprise one from interior pipe unit axially stretch out outer tube and can be described relatively in pipe unit change piston rod highly, described piston unit with described air pressure space community make between the upper and lower every one first spatial portion and one second spatial portion, it is characterized in that:

Pipe unit comprises that also one is installed between described interior pipe top and outer tube and by integrally moulded seal valve seat in described, described seal valve seat has a valve road that is communicated with the top in described air pressure space, described automatic shock-proof adjuster also comprises a control cock that is communicated with or seals the described valve road and first spatial portion, described control cock comprises that can be inserted a throw rod of stretching in described seal valve seat up or down, and one is installed in and describedly goes up in the mount pad and compress described throw rod and can drive the control piece that described throw rod moves up and down.

2. automatic shock-proof adjuster according to claim 1, it is characterized in that: described seal valve seat comprises a valve wall that the surface is stepped, described valve wall has aforementioned valve road, and at least one radially dwindles and circular rabbet that the seal ring snare is established of confession.

3. automatic shock-proof adjuster according to claim 2, it is characterized in that: pipe unit comprises that also an interval is formed on the flow channel between periphery, air pressure space and outer tube in described, described flow channel has a vertical section that uprightly is positioned between pipe and outer tube, and one be positioned at the bottom of described vertical section and be communicated with following logical section of second spatial portion, and the valve wall of described seal valve seat also has an intercommunicating pore that radially connects and connect described valve road, road and described vertical section apical margin.

4. automatic shock-proof adjuster according to claim 1, it is characterized in that: described control piece comprises that is arranged at described go up in the mount pad and the pressure section of the described throw rod apical margin of contact, and the portion of pulling of extending and can be pulled from described pressure section outer end.

5. automatic shock-proof adjuster according to claim 1, it is characterized in that: described piston unit comprises that also is fixed in the airtight piston that is embedded in the described interior pipe in the top of piston rod and the ground that can relatively move, and described piston is separated out aforementioned first and second spatial portion with described air pressure space region.