CN112431885B - A double-chamber air spring - Google Patents
A double-chamber air spring Download PDFInfo
- Publication number
- CN112431885B CN112431885B CN202011279832.3A CN202011279832A CN112431885B CN 112431885 B CN112431885 B CN 112431885B CN 202011279832 A CN202011279832 A CN 202011279832A CN 112431885 B CN112431885 B CN 112431885B
- Authority
- CN
- China
- Prior art keywords
- air
- fixing seat
- chamber
- inner tube
- piston assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 3
- 230000003139 buffering effect Effects 0.000 description 4
- 238000013016 damping Methods 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/0209—Telescopic
- F16F9/0281—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3214—Constructional features of pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a double-air-chamber air spring which comprises an inner pipe body, an air rod fixing seat, an inner pipe fixing seat, a piston assembly and a telescopic rod, wherein the air rod fixing seat and the inner pipe fixing seat are respectively arranged at two ends of the inner pipe body, the piston assembly is slidably arranged in the inner pipe body, the air rod fixing seat is matched with the piston assembly to form a first air chamber, the inner pipe fixing seat is matched with the piston assembly to form a second air chamber, one end of the telescopic rod penetrates through the inner pipe fixing seat to be fixedly connected with the piston assembly, the double-air-chamber air spring replaces the traditional air spring in a spring resetting mode, noise generated in the using process is effectively reduced, and the weight of the air spring is reduced.
Description
Technical Field
The invention relates to the technical field of bicycles, in particular to a double-air-chamber air spring.
Background
The air spring is a device which is filled with compressed air in a sealed container and realizes the elastic action by utilizing the air compressibility, has ideal nonlinear elastic characteristic, is generally applied to bicycles or motorcycles, is used for reducing vibration generated in the working process of the bicycles and the motorcycles, improves riding comfort, and has good riding comfort.
The existing air springs are provided with only one air chamber, and the other side of the air springs is replaced by rubber pads and springs, so that the springs can be used for resetting. However, when the air spring is pressed down to rebound, the spring and the rubber washer are impacted to generate impact sound, so that the use is affected; meanwhile, the existing air springs are compressed by using springs, the weight of the springs is heavy, and most of the air springs are arranged on the front fork, so that the front fork is heavy to influence the use.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide the double-air-chamber air spring, which replaces the existing air spring by utilizing a spring resetting mode, effectively reduces noise generated in the using process and reduces the weight of the air spring.
The invention adopts the following technical scheme:
The double-air-chamber air spring comprises an inner pipe body, an air rod fixing seat, an inner pipe fixing seat, a piston assembly and a telescopic rod, wherein the air rod fixing seat and the inner pipe fixing seat are respectively arranged at two ends of the inner pipe body, the piston assembly is slidably arranged in the inner pipe body, the air rod fixing seat is matched with the piston assembly to form a first air chamber, the inner pipe fixing seat is matched with the piston assembly to form a second air chamber, and one end of the telescopic rod penetrates through the inner pipe fixing seat to be fixedly connected with the piston assembly;
the piston assembly comprises a piston body and a buffer member, a first cavity is arranged in the piston body,
An opening for communicating the first air chamber with the first cavity is formed on the surface of the piston body, a gap for communicating the first cavity with the second air chamber is formed between the piston body and the buffer member, an elastic piece is arranged in the gap, an air valve switch is arranged in the opening, the air valve switch is connected with the opening in a sliding way, the lower end of the air valve switch penetrates through the first cavity, is arranged in the buffer component and is fixedly connected with the buffer component, a clamping ring is formed on the side wall of the opening, a clamping block matched with the clamping ring is formed on the outer side of the air valve switch, and the clamping block is clamped and fixed with the clamping ring.
Further, the piston body and the buffer member are sequentially sleeved on the telescopic rod, a pin clamped by the telescopic rod is arranged on the piston body, the telescopic rod is arranged at one end in the inner tube body and provided with a groove, the opening corresponds to the notch of the groove, and the lower end of the air valve switch is slidably arranged in the groove.
Further, a fixing pin is arranged on the buffer member, a through hole for the fixing pin to pass through is formed in the side face of the buffer member, and the fixing pin is suitable for being clamped and fixed with the lower end of the air valve switch after passing through the buffer member and the through hole.
Further, the buffer member comprises a buffer gasket and an air bar matching block, the air bar matching block is arranged at the left end of the buffer gasket, and the fixing pin is arranged on the air bar matching block.
Further, an air inlet communicated with the first air chamber is formed in the air bar fixing seat.
Further, a sealing ring is arranged on the joint surface of the piston body and the inner pipe body.
Compared with the prior art, the invention has the beneficial effects that:
According to the application, the piston body, the air valve switch and the buffer member are matched with the elastic piece, so that the second air chamber can be pressurized, the inner pipe body is formed into the double air chamber, and the double air chamber can be used for damping, so that the existing damping mode of matching the spring with the first air chamber is replaced, noise generated when the spring collides with the inner pipe body during working is effectively avoided, the use is influenced, and meanwhile, the weight of the air spring is reduced.
Drawings
FIG. 1 is a schematic diagram of a dual chamber air spring of the present invention;
FIG. 2 is a cross-sectional view of a dual air chamber air spring of the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
fig. 4 is a schematic structural view of a dual air chamber air spring piston body according to the present invention.
The diagram is: 1. an inner tube body; 11. a first air chamber; 12. a second air chamber; 2. the air bar fixing seat; 3. an inner tube fixing seat; 4. a piston assembly; 41. a piston body; 411. an opening; 412. a clasp; 42. an elastic member; 43. a buffer gasket; 44. an air bar matching block; 45. an air valve switch; 451. a clamping block; 5. a telescopic rod.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.
As shown in fig. 1-4, a double-air-chamber air spring comprises an inner pipe body 1, an air rod fixing seat 2, an inner pipe fixing seat 3, a piston assembly 4 and a telescopic rod 5, wherein the air rod fixing seat 2 and the inner pipe fixing seat 3 are respectively arranged at two ends of the inner pipe body 1, the piston assembly 4 is slidably arranged in the inner pipe body 1, the air rod fixing seat 2 is matched with the piston assembly 4 to form a first air chamber 11, the inner pipe fixing seat 3 is matched with the piston assembly 4 to form a second air chamber 12, and one end of the telescopic rod 5 penetrates through the inner pipe fixing seat 3 to be fixedly connected with the piston assembly 4;
The piston assembly 4 comprises a piston body 41 and a buffer member, a first cavity is arranged in the piston body 41, an opening 411 for communicating the first air chamber 11 with the first cavity is formed in the surface of the piston body 41, a gap for communicating the first cavity with the second air chamber 12 is formed between the piston body 41 and the buffer member, an elastic piece 42 is arranged in the gap, an air valve switch 45 is arranged in the opening 411, the air valve switch 45 is in sliding connection with the opening 411, and the lower end of the air valve switch 45 penetrates through the first cavity and is placed in the buffer member and fixedly connected with the buffer member.
During operation, the piston assembly 4 is moved to be in abutting connection with the inner pipe fixing seat 3, then gas is filled into the first gas chamber 11, at this time, the gas pressure in the first gas chamber 11 is increased, the piston body 41 is pushed to press the elastic piece 42 until the elastic piece 42 is pressed to the minimum under the action of the gas pressure in the first gas chamber 11, at this time, the piston body 41 and the gas valve switch 45 move relatively to open the opening 411 (the piston body 41 moves downwards relative to the gas valve switch 45), the first gas chamber 11 is communicated with the second gas chamber 12, the gas in the first gas chamber 11 enters the second gas chamber 12 to regulate the pressure in the second gas chamber 12, so that the pressure in the first gas chamber 11 is the same as the pressure in the second gas chamber 12, then the gas is stopped to be filled into the first gas chamber 11, at this time, the pressure in the second gas chamber 12 is larger than the gas pressure in the first gas chamber 11, the piston body 41 is pushed to move towards the gas valve switch 45, so that the gas valve switch 45 is matched with the opening 411 again, the first gas chamber 11 is separated from the second gas chamber 12, and then the piston assembly 4 moves towards the first gas chamber 11 under the action of the second gas chamber 12 until the pressure in the first gas chamber 11 is kept consistent with the pressure in the first gas chamber 11, and the first gas chamber 11 is compressed as the air.
The piston body 41, the air valve switch 45 and the buffer member are matched with the elastic piece 42, so that the second air chamber 12 can be pressurized, the double air chambers are formed in the inner pipe body 1, the double air chambers can be used for damping, the existing damping mode of matching the spring with the first air chamber 11 is replaced, noise generated when the spring collides with the inner pipe body 1 during working is effectively avoided, the use is influenced, and meanwhile, the weight of the air spring is reduced.
Preferably, a clamping ring 412 is formed on the side wall of the opening 411 in the present application, a clamping block 451 adapted to the clamping ring 412 is formed on the outer side of the air valve switch 45, and the clamping block 451 is clamped and fixed with the clamping ring 412, so as to facilitate the installation and positioning of the air valve switch 45.
Preferably, the piston body 41 and the buffer member are sequentially sleeved on the telescopic rod 5, the piston body 41 is provided with a pin clamped with the telescopic rod 5, so that the piston body 41 and the telescopic rod 5 are connected into a whole, the telescopic rod 5 is convenient to drive the piston assembly 4 to move, meanwhile, the telescopic rod 5 is arranged at one end of the inner pipe body 1 and is provided with a groove, the opening 411 corresponds to the notch of the groove, and the lower end of the air valve switch 45 is slidably arranged in the groove, so that the air valve switch 45 can be conveniently moved.
Preferably, the buffering member is provided with a fixing pin, the side surface of the buffering member is provided with a through hole for the fixing pin to pass through, and the fixing pin is suitable for penetrating through the buffering member and the through hole to be clamped and fixed with the lower end of the air valve switch 45, so that the buffering member can be connected with the air valve switch 45 into a whole, and the stability of the structure is improved.
Preferably, the buffer member includes a buffer washer 43 and an air bar engagement block 44, the air bar engagement block 44 is provided at the left end of the buffer washer 43, and the fixing pin is provided on the air bar engagement block 44.
Preferably, the air bar fixing seat 2 is provided with an air inlet communicated with the first air chamber 11, so that a user can conveniently fill the first air chamber 11 with air. Meanwhile, in order to avoid gas leakage in the first air chamber 11 and the second air chamber 12, sealing rings are arranged on the joint surfaces of the piston body 41 and the inner pipe body 1 to improve the tightness, and meanwhile, the mold sealing rings are also arranged on the air bar fixing seat 2 and the inner pipe fixing seat 3 to ensure the tightness of the inner pipe body 1.
The piston body 41 is made of plastic steel, so that the weight is light, and the installation is faster.
The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to be within the scope of the present invention as claimed.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011279832.3A CN112431885B (en) | 2020-11-16 | 2020-11-16 | A double-chamber air spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011279832.3A CN112431885B (en) | 2020-11-16 | 2020-11-16 | A double-chamber air spring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112431885A CN112431885A (en) | 2021-03-02 |
| CN112431885B true CN112431885B (en) | 2024-11-22 |
Family
ID=74700093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011279832.3A Active CN112431885B (en) | 2020-11-16 | 2020-11-16 | A double-chamber air spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112431885B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214661681U (en) * | 2020-11-16 | 2021-11-09 | 广州市完美车业有限公司 | Double-air-chamber air spring |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5129635A (en) * | 1990-06-21 | 1992-07-14 | Power Components, Inc. | Gas spring with c-shaped seal |
| DE19755080B4 (en) * | 1997-12-11 | 2004-12-02 | Stabilus Gmbh | Gas spring with stop function and temperature compensation |
| DE102005038115A1 (en) * | 2005-06-16 | 2006-12-28 | Stabilus Gmbh | gas spring |
| DE102006056666A1 (en) * | 2006-06-23 | 2007-12-27 | Krautkrämer, Hermann (verstorben) | Pneumatic spring, has two chambers that are respectively formed by inner and outer pipes, where outer pipe is concentric to inner pipe, and spring force-subjected ring piston locks one chamber |
| US9156325B2 (en) * | 2008-03-19 | 2015-10-13 | Fox Factory, Inc. | Methods and apparatus for vehicle suspension having multiple gas volumes |
| US8511448B2 (en) * | 2010-02-01 | 2013-08-20 | Trek Bicycle Corp. | Bicycle air shock assemblies with tunable suspension performance |
| TWI572791B (en) * | 2014-09-01 | 2017-03-01 | Pressure bar | |
| JP6523848B2 (en) * | 2015-07-23 | 2019-06-05 | Ｋｙｂモーターサイクルサスペンション株式会社 | Front fork |
| US9821877B2 (en) * | 2016-04-26 | 2017-11-21 | Chin-Sung Tsai | Pressure-balanced shock absorber for a bicycle |
| CN106195092B (en) * | 2016-08-31 | 2018-09-28 | 广州市完美车业有限公司 | A kind of gas spring improving bicycle front fork shock-proof effect |
| CN110206842A (en) * | 2019-06-06 | 2019-09-06 | 苗军 | A kind of single cylinder cylinder double chamber hydragas spring |
-
2020
- 2020-11-16 CN CN202011279832.3A patent/CN112431885B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214661681U (en) * | 2020-11-16 | 2021-11-09 | 广州市完美车业有限公司 | Double-air-chamber air spring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112431885A (en) | 2021-03-02 |
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |