CN113027971A - Front shock-absorbing device of three-wheeled automobile - Google Patents
Front shock-absorbing device of three-wheeled automobile Download PDFInfo
- Publication number
- CN113027971A CN113027971A CN202110303227.3A CN202110303227A CN113027971A CN 113027971 A CN113027971 A CN 113027971A CN 202110303227 A CN202110303227 A CN 202110303227A CN 113027971 A CN113027971 A CN 113027971A
- Authority
- CN
- China
- Prior art keywords
- shock absorption
- damping
- wall
- spring
- bushing
- 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.)
- Pending
Links
- 230000035939 shock Effects 0.000 claims abstract description 97
- 238000010521 absorption reaction Methods 0.000 claims abstract description 47
- 239000006096 absorbing agent Substances 0.000 claims abstract description 37
- 238000005096 rolling process Methods 0.000 claims abstract description 27
- 238000013016 damping Methods 0.000 claims description 25
- 238000003466 welding Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 6
- 238000004663 powder metallurgy Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 102000004315 Forkhead Transcription Factors Human genes 0.000 claims description 2
- 108090000852 Forkhead Transcription Factors Proteins 0.000 claims description 2
- 230000035945 sensitivity Effects 0.000 abstract description 6
- 239000000725 suspension Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
- F16F7/104—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted
- F16F7/116—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted on metal springs
-
- 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
- F16N—LUBRICATING
- F16N1/00—Constructional modifications of parts of machines or apparatus for the purpose of lubrication
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a front shock absorption device of a three-wheeled automobile, which comprises a yoke plate, wherein the upper surface of the yoke plate is provided with a direction column, the lower surface of the yoke plate is provided with two shock absorption rods, the lower parts of the shock absorption rods are sleeved with shock absorption cylinders, the lower ends of the shock absorption cylinders are provided with fork heads connected with a front wheel shaft, the outer sides of the shock absorption cylinders are sleeved with shock absorption springs, and an upper spring seat and a lower spring seat are respectively fixed on the shock absorption rods and the shock absorption cylinders; an upper bushing and a lower bushing are sequentially arranged in the shock absorption cylinder from top to bottom, and are sleeved on the shock absorption rod; the lower extreme of shock-absorbing rod is provided with the wheel that rolls, and the wheel that rolls is located the rear portion of shock-absorbing rod to the outer wall of wheel that rolls supports on the inner wall of damper cylinder. The rolling friction pair is additionally arranged and used for assisting in reducing the friction force generated by the original sliding friction, so that the sensitivity of the shock absorber is effectively improved.
Description
Technical Field
The invention relates to the field of shock absorbers, in particular to a front shock absorbing device of a three-wheeled automobile.
Background
Along with the increase of the demand of tricycles in the market, the noise of an engine is gradually reduced, the road condition is better and better, a user puts forward higher requirements on the sensitivity and the noise of a front suspension system of the tricycle, meanwhile, the light weight of the whole tricycle also becomes an inevitable trend, the reciprocating motion of the shock absorber in the market at present adopts a sliding friction pair structure, and the sensitivity of the shock absorber is lower.
Disclosure of Invention
The invention aims to provide a front shock absorption device of a three-wheeled automobile, which solves the problem that the existing three-wheeled automobile shock absorber is low in sensitivity.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention relates to a front shock absorption device of a three-wheeled automobile, which comprises a yoke plate, wherein the upper surface of the yoke plate is provided with a direction column, the lower surface of the yoke plate is provided with two shock absorption rods, the lower parts of the shock absorption rods are sleeved with shock absorption cylinders, the lower ends of the shock absorption cylinders are provided with fork heads connected with a front wheel shaft, the outer sides of the shock absorption cylinders are sleeved with shock absorption springs, the upper ends of the shock absorption springs are abutted against upper spring seats, the lower ends of the shock absorption springs are abutted against lower spring seats, and the upper spring seats and the lower spring seats are respectively fixed on the;
a sealing assembly is arranged at the upper port of the damping cylinder, an upper bushing and a lower bushing are sequentially arranged in the damping cylinder from top to bottom, and the upper bushing and the lower bushing are sleeved on the damping rod; the two end parts of the upper bushing are respectively provided with a first clamp spring, and the first clamp springs are clamped in annular grooves formed in the inner wall of the damping cylinder in advance; second clamp springs are arranged at two end parts of the lower bushing and clamped in annular grooves formed in the outer wall of the shock absorption rod in advance;
the lower end of the shock absorption rod is provided with a rolling wheel, the rolling wheel is positioned at the rear part of the shock absorption rod, and the outer wall of the rolling wheel is abutted against the inner wall of the shock absorption cylinder.
Furthermore, a buffer spring is arranged between the upper bushing and the lower bushing, the upper end of the buffer spring is abutted on the upper bushing, the lower end of the buffer spring is abutted on a limiting seat, and the limiting seat is fixed on the shock absorption rod through a third clamp spring.
Further, the upper bushing and the lower bushing are powder metallurgy bushings.
Furthermore, the outer circular wall of the rolling wheel is a cambered surface.
Furthermore, the outer circular wall of the rolling wheel is attached to the inner wall of the shock absorption cylinder.
Furthermore, the sealing assembly comprises an oil seal, a dust seal and a threaded sleeve, wherein the threaded sleeve is a thin-wall nut and is connected to the port of the shock absorption cylinder through threads.
Further, the direction column is of a hollow structure.
Furthermore, the upper end of the direction column is provided with an upper welding entity, and the lower end of the direction column is provided with an inner screw hole, an outer screw thread column or a lower welding entity.
Furthermore, the yoke plate is formed by welding a round pipe and a square pipe.
Compared with the prior art, the invention has the beneficial technical effects that:
firstly, based on the inherent friction principle of a sliding friction pair adopted by the existing tricycle shock absorber, the tricycle shock absorber is additionally provided with a rolling friction pair for assisting in reducing the friction force generated by the original sliding friction, so that the sensitivity of the shock absorber is improved;
secondly, based on the processing precision and the assembly level of the existing tricycle shock absorber accessory, the influence of the accessory on the coaxiality inside the system is reduced by optimizing the assembly structure of the upper bushing, so that the clamping hysteresis is reduced, and the design scheme of the sensitivity is improved;
thirdly, based on the material waste caused by the fact that the existing tricycle is generally overweight and the design strength of each part is asynchronous, the light weight treatment is carried out on the main performance-surplus accessories such as the connecting plate and the direction column through the strength check of each part;
fourthly, based on the small load environment of the tricycle, the working point of the shock absorber is higher, and when the shock absorber works with large amplitude, a buffer spring is added in the middle of the upper limiting structure to enable the shock absorber to be elastic limiting, so that the abnormal sound caused by metal collision when the original shock absorber structure collides with the sky is eliminated.
Drawings
The invention is further illustrated in the following description with reference to the drawings.
FIG. 1 is a schematic structural view of a front shock absorbing device according to the present invention;
FIG. 2 is a force analysis diagram of the front suspension apparatus of the present invention;
FIG. 3 is a schematic view of the installation of the buffer spring of the present invention;
FIG. 4 is a schematic view of the construction of the yoke plate of the present invention;
FIG. 5 is a schematic view of the structure of the direction column of the present invention.
Description of reference numerals: 1. a direction post; 101. an upper welding entity; 102. an inner threaded hole; 103. an externally threaded post; 104. a lower welding entity; 2. a yoke plate; 3. a damper cylinder; 4. a shock-absorbing lever; 5. an upper spring seat; 501. a lower spring seat; 6. a damping spring; 7. a seal assembly; 8. a first clamp spring; 801. a second clamp spring; 9. an upper bushing; 10. a buffer spring; 1001. a limiting seat; 1002. a third clamp spring; 11. a lower bushing; 12. a rolling wheel; 13. a fork head.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1 and 3, the embodiment discloses a front shock absorption device for a three-wheeled automobile, which includes a yoke plate 2, a direction column 1 is arranged on the surface of the yoke plate 2, two shock absorption rods 4 are arranged on the lower surface of the yoke plate, and the direction column 1 is assembled and connected with a front vertical pipe of the whole automobile. The lower part cover of shock absorber pole 4 is equipped with damper cylinder 3, and the lower extreme of damper cylinder 3 is provided with fork 13 with the front wheel hub connection, and the outside cover of damper cylinder 3 is equipped with damping spring 6, and damping spring 6's upper end supports on last spring holder 5, and the lower extreme supports on lower spring holder 501. The upper spring seat 5 is welded and fixed on the shock absorption rod 4, and the lower spring seat 501 is welded and fixed on the shock absorption cylinder 3.
The upper port of the damper cylinder 3 is provided with a sealing component 7, the sealing component 7 comprises an oil seal, a dust seal and a threaded sleeve, and the threaded sleeve is a thin-walled nut and is connected to the port of the damper cylinder 3 through threads. Be provided with last bush 9 and lower liner 11 in damper cylinder 3, go up bush 9 and lower liner 11 and all overlap and establish on shock attenuation pole 4, the both ends of going up bush 9 all are provided with first jump ring 8, and first jump ring 8 joint is in the ring channel that damper cylinder 3 inner wall was seted up in advance, and the both ends of lower liner 11 all are provided with second jump ring 801, and second jump ring 801 joint is in the ring channel that damper cylinder 4 outer wall was seted up in advance. The upper bushing 9 adopts a double-clamp-spring vertical clamping design, so that the problem of non-coaxial clamping stagnation caused by axial pressure existing in an original structure is solved, and the internal friction force of the system can be reduced.
The lower end of the shock absorption rod 4 is provided with a rolling wheel 12, the rolling wheel 12 is positioned at the rear part of the shock absorption rod 4, and the outer wall of the rolling wheel 12 is propped against the inner wall of the shock absorption cylinder 3. Specifically, the method comprises the following steps: the front tilt angle theta of the whole front riser of a main engine plant is generally designed to be 19-23 degrees, the included angle between a front shock absorption frame and a vertical plane is 19-23 degrees, so that an upper bushing 9 and a lower bushing 11 in a shock absorber are stressed, the lateral force borne by an inner bushing of a front suspension system with the structure is F (F is cos theta multiplied by P, P is front wheel load, and theta is within a value range of 19-23 degrees), the friction force F of a pipe wall borne by the bushing is F friction coefficient, under the condition that the front wheel load is certain, the friction force in the system is reduced, the friction coefficient can be reduced, the sliding friction is changed into rolling friction on the premise that the existing material and the machining precision are not changed, and the friction coefficient can be greatly reduced. Therefore, a rolling friction pair, namely a rolling wheel 12 is added in the shock absorber, the rolling wheel 12 must be arranged at the back of the shock absorber rod 4 and is pressed against the inner wall of the shock absorber tube 3, the rolling wheel 12 is used for supporting the lower bushing 11 in the shock absorber, the rear part of the lower bushing 11 is not contacted with the inner wall of the shock absorber tube 3, and the lower bushing 11 does not generate sliding friction when the shock absorber works in a reciprocating mode.
As shown in fig. 2, the positive pressure in the inner wall of the damper cylinder is analyzed with the shaft hole O as a fixed origin: f x F1×L1f×F2×L2Wherein F is the coefficient of friction, F1For lateral pressure on the upper sleeve, F1The lateral pressure on the lower shaft sleeve is obtained; due to the design of the damper L1Is a fixed value, L2At less than L1Movement in the range of/2, i.e. L1≈2L2Therefore F2≈2F1When rollers are additionally arranged F2Approximately 0 (negligible rolling friction coefficient), therefore, the lateral force is reduced 2/3 (F before increasing the roller)1+F2Increasing the lateral force after the roller to F1). Only when the load is too large, the rear part of the lower bushing 11 is contacted with the inner wall of the oil cylinder again when the shock absorption rod 4 is subjected to micro bending.
In this embodiment, the upper bushing 9 and the lower bushing 11 are powder metallurgy bushings having a good lubricating function.
The inner wall of the damping cylinder 3 is circular, and the inner diameter of the damping cylinder 3 of the shock absorber is 30-70 mm, the outer circular wall of the rolling wheel 12 is also designed into an arc shape with a corresponding radius, the design is that the two arcs are consistent, the contact area is increased, and the service life of the rolling wheel 12 and the damping cylinder 3 is prolonged. When the shock absorber is installed, the distance between the arc top of the rolling wheel 12 and the center of the shock absorption rod 4 is larger than the outer diameter of the lower bushing 11, the accumulated tolerance is controlled to be +0.05 to +0.2mm, and after the shock absorber is assembled and the outer circular wall of the rolling wheel 12 is in contact with the inner wall of the shock absorption cylinder 3, the tolerance between the outer diameter of the lower bushing 11 and the inner wall of the shock absorption cylinder 3 is controlled to be +0.05 to +0.2 mm. The rolling wheel 12 may be of powder metallurgy construction or bearing construction.
When the little load work of bumper shock absorber, the bumper shock absorber compression capacity (operating point) is less, about general no-load or little load vehicle design operating point 35mm, whole bumper shock absorber design stroke 120mm, under this kind of operating mode, bumper shock absorber stop gear is 35mm apart from upper portion, be 85mm apart from the lower part, if meet jolting, bumper shock absorber vibration amplitude is greater than 35mm, stop gear can reach the biggest stroke on the bumper shock absorber, it is spacing to trigger hard mechanical locking, produce technical collision sound from this, and the acceleration that the bumper shock absorber produced during spacing is too big, bring not good driving impression for the driver.
As shown in fig. 3, in order to avoid the above situation, in this embodiment, a buffer spring 10 is added in a conventional upper limiting mechanism, specifically, a buffer spring 10 is disposed between an upper bushing 9 and a lower bushing 11, the buffer spring 10 is sleeved on the shock-absorbing rod 4, an upper end of the buffer spring 10 abuts against the upper bushing 9, a lower end of the buffer spring 10 abuts against a limiting seat 1001, and the limiting seat 1001 is fixed on the shock-absorbing rod 4 through a third snap spring 1002.
When the maximum upper stroke is triggered to be limited, the rigid mechanical limit is changed into the flexible spring limit, so that violent metal collision sound is avoided, the acceleration is reduced, and the driving feeling is improved. Specifically, when the shock absorber is normally assembled, the buffer spring 10 has a certain compression amount, so that the spring cannot be displaced when the front wheel of the vehicle is lifted off the ground. After the current suspension normally loads, the shock absorber is compressed, buffer spring 10 is in the freedom not atress state, receive when strikeing when having the amplitude when the shock absorber, if the amplitude is greater than the limit value, buffer spring 10 is compressed, buffer spring had both played reverse damping effect this moment, prolong the upstroke of shock absorber simultaneously, accord with the work law of shock absorber, spring extension vibration's active time promptly, thereby make the effort that whole car received in the unit interval reduce, just so avoid the abnormal sound, the travelling comfort has been promoted simultaneously.
As shown in fig. 4 and 5, the steering column 1 has a hollow structure in order to reduce the overall weight of the front suspension. The yoke plate 2 is formed by welding a round pipe and a square pipe. The pipe is as the installation hole site of direction post 1 and two shock attenuation poles 4, and square pipe is used for connecting each installation hole site. When the direction column 1 is a hollow structure, an upper welding entity can be arranged at the upper end of the direction column 1, and an inner screw hole, an outer screw thread column or a lower welding entity is arranged at the lower end. Go up welding entity and whole car front riser be assembled between/be connected, interior screw hole passes through bolt and yoke plate erection joint, and the external screw thread post passes through nut and yoke plate erection joint, sets up the external screw thread on the outer wall of lower welding entity, also is through bolt and yoke plate erection joint.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (9)
1. The utility model provides a three-wheeled automobile front shock absorbing device which characterized in that: the damping device comprises a yoke plate (2), wherein a direction column (1) is arranged on the upper surface of the yoke plate (2), two damping rods (4) are arranged on the lower surface of the yoke plate, a damping cylinder (3) is sleeved on the lower portion of each damping rod (4), a fork head (13) connected with a front wheel shaft is arranged at the lower end of each damping cylinder (3), a damping spring (6) is sleeved on the outer side of each damping cylinder (3), the upper end of each damping spring (6) abuts against an upper spring seat (5), the lower end of each damping spring (6) abuts against a lower spring seat (501), and the upper spring seat (5) and the lower spring seat (501) are respectively fixed on the damping rods (4) and the damping cylinders (3);
a sealing assembly (7) is arranged at the upper port of the damping cylinder (3), an upper bushing (9) and a lower bushing (11) are sequentially arranged in the damping cylinder (3) from top to bottom, and the upper bushing (9) and the lower bushing (11) are sleeved on the damping rod (4); the two end parts of the upper bushing (9) are respectively provided with a first snap spring (8), and the first snap springs (8) are clamped in annular grooves which are formed in the inner wall of the shock absorption cylinder (3) in advance; two end parts of the lower bushing (11) are respectively provided with a second clamp spring (801), and the second clamp springs (801) are clamped in annular grooves formed in the outer wall of the shock absorption rod (4) in advance;
the lower end of the shock absorption rod (4) is provided with a rolling wheel (12), the rolling wheel (12) is located at the rear part of the shock absorption rod (4), and the outer wall of the rolling wheel (12) abuts against the inner wall of the shock absorption cylinder (3).
2. The three-wheeled automobile front shock absorbing device according to claim 1, wherein: be provided with buffer spring (10) between upper liner (9) and lower liner (11), buffer spring (10) upper end is supported on upper liner (9), and the lower extreme supports on spacing seat (1001), spacing seat (1001) are fixed through third jump ring (1002) on shock absorber rod (4).
3. The three-wheeled automobile front shock absorbing device according to claim 1, wherein: the upper lining (9) and the lower lining (11) are powder metallurgy linings.
4. The three-wheeled automobile front shock absorbing device according to claim 1, wherein: the outer circular wall of the rolling wheel (12) is a cambered surface.
5. The three-wheeled automobile front shock absorbing device according to claim 4, wherein: the outer circular wall of the rolling wheel (12) is attached to the inner wall of the shock absorption cylinder (3).
6. The three-wheeled automobile front shock absorbing device according to claim 1, wherein: the sealing assembly (7) comprises an oil seal, a dust seal and a threaded sleeve, wherein the threaded sleeve is a thin-wall nut and is connected to the port of the shock absorption cylinder (3) through threads.
7. The three-wheeled automobile front shock absorbing device according to claim 1, wherein: the direction column (1) is of a hollow structure.
8. The three-wheeled vehicle front shock absorbing device according to claim 7, wherein: an upper welding entity (101) is arranged at the upper end of the direction column (1), and an inner screw hole (102), an outer screw thread column (103) or a lower welding entity (104) is arranged at the lower end.
9. The three-wheeled automobile front shock absorbing device according to claim 1, wherein: the yoke plate (2) is formed by welding a round pipe and a square pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110303227.3A CN113027971A (en) | 2021-03-22 | 2021-03-22 | Front shock-absorbing device of three-wheeled automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110303227.3A CN113027971A (en) | 2021-03-22 | 2021-03-22 | Front shock-absorbing device of three-wheeled automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113027971A true CN113027971A (en) | 2021-06-25 |
Family
ID=76472367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110303227.3A Pending CN113027971A (en) | 2021-03-22 | 2021-03-22 | Front shock-absorbing device of three-wheeled automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113027971A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5509676A (en) * | 1994-01-26 | 1996-04-23 | Kabushiki Kaisha Daikin Seisakusho | Shock absorber for a bicycle front fork |
| US20020038929A1 (en) * | 2000-06-23 | 2002-04-04 | Now Leo Martin | Shock absorber |
| CN2635985Y (en) * | 2003-06-28 | 2004-08-25 | 李国贤 | Spring, hydraulic rolling wheel type vibration damper |
| CN2900333Y (en) * | 2006-03-31 | 2007-05-16 | 陆杰 | Changeable front shock damper of motorcycle |
| CN201401477Y (en) * | 2009-04-03 | 2010-02-10 | 福田雷沃国际重工股份有限公司 | Novel front shock absorber for tricycles |
| CN201531554U (en) * | 2009-11-20 | 2010-07-21 | 李文法 | Shock absorber |
-
2021
- 2021-03-22 CN CN202110303227.3A patent/CN113027971A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5509676A (en) * | 1994-01-26 | 1996-04-23 | Kabushiki Kaisha Daikin Seisakusho | Shock absorber for a bicycle front fork |
| US20020038929A1 (en) * | 2000-06-23 | 2002-04-04 | Now Leo Martin | Shock absorber |
| CN2635985Y (en) * | 2003-06-28 | 2004-08-25 | 李国贤 | Spring, hydraulic rolling wheel type vibration damper |
| CN2900333Y (en) * | 2006-03-31 | 2007-05-16 | 陆杰 | Changeable front shock damper of motorcycle |
| CN201401477Y (en) * | 2009-04-03 | 2010-02-10 | 福田雷沃国际重工股份有限公司 | Novel front shock absorber for tricycles |
| CN201531554U (en) * | 2009-11-20 | 2010-07-21 | 李文法 | Shock absorber |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5370411A (en) | Bicycle frame assembly | |
| CN200977951Y (en) | Full-floating front suspension device of cab | |
| CN214930392U (en) | Shock-absorbing front fork of electric tricycle | |
| CN212979852U (en) | Anti-torsion pull rod structure and automobile | |
| CN113027971A (en) | Front shock-absorbing device of three-wheeled automobile | |
| CN105240446A (en) | Front shock absorber and motorcycle | |
| CN113291402B (en) | Rear shock absorption structure of large-displacement pedal motorcycle | |
| CN215361583U (en) | Cab front suspension device of floating stabilizer bar | |
| JPH1151106A (en) | Dust cover mounting structure | |
| CN210132963U (en) | Pure electric vehicles's bumper shock absorber mounting structure | |
| CN220096550U (en) | Shock-absorbing handlebar vertical structure of bicycle and bicycle | |
| CN219133783U (en) | Front pillar assembly structure of automobile | |
| CN211501457U (en) | Damping type shock absorber and motor tricycle | |
| CN205089890U (en) | Preceding bumper shock absorber and motorcycle | |
| CN209762101U (en) | Mechanical shock absorber | |
| CN217227283U (en) | Engine shock absorption support | |
| CN216768180U (en) | Double-layer automobile suspension spring shock absorber | |
| JPH0744833Y2 (en) | Spring load adjusting device for hydraulic shock absorber | |
| CN219263065U (en) | Hydraulic damping shock absorber for rear fork of electric vehicle | |
| CN212690665U (en) | Front shock absorber of electric scooter | |
| CN213534991U (en) | Middle shaft and rear bottom fork integrated structure and electric bicycle | |
| JPH02125118A (en) | Front wheel shock absorber for motorcycle | |
| CN211371116U (en) | Comfortable bottom-touch-preventing shock absorber and motor tricycle | |
| CN112298433B (en) | Tricycle rear axle shock attenuation suspension | |
| JPS6340074Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210625 |