CN201258937Y - Damper for motor vehicle - Google Patents
Damper for motor vehicle Download PDFInfo
- Publication number
- CN201258937Y CN201258937Y CNU200820162780XU CN200820162780U CN201258937Y CN 201258937 Y CN201258937 Y CN 201258937Y CN U200820162780X U CNU200820162780X U CN U200820162780XU CN 200820162780 U CN200820162780 U CN 200820162780U CN 201258937 Y CN201258937 Y CN 201258937Y
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- China
- Prior art keywords
- oil pocket
- oil cavity
- motor vehicle
- oil
- front fork
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Abstract
The utility model discloses an improved motor vehicle shock absorber. The motor vehicle shock absorber comprises an outer cylinder, a locating pipe, a damping spring and a front fork pipe, wherein, the outer cylinder is connected with the locating pipe; and the front fork pipe is inserted into an oil cavity formed by the outer cylinder and the locating pipe and slides correspondingly to the outer cylinder and the locating pipe. The motor vehicle shock absorber is characterized in that the outer cylinder, the locating pipe and the front fork pipe form a first oil cavity, and the front fork pipe and the locating pipe form a second oil cavity and a third oil cavity; a check valve is arranged between the first oil cavity and the second oil cavity; the first oil cavity is communicated with the third oil cavity; a damping hole is arranged between the second oil cavity and the third oil cavity; the third oil cavity is connected with an air cavity, and the third oil cavity is separated from the air cavity by a floating piston. The utility model solves the problem of the idle stroke of the shock absorber by separating the air chamber and the oil chamber, so as to improve the shock absorption effect of motor vehicles and provide the safe and comfortable using effects for the passengers; meanwhile, the damage to the motor vehicles is reduced, and the service life of the motor vehicles is prolonged.
Description
Technical field
The utility model relates to a kind of vibration damper, particularly be a kind of Motor Vehicle front shock absorber.
Background technique
In order to relax impact and the vibrations that are subjected to because of road is uneven in the process of moving with the decay Motor Vehicle, guarantee the smoothness and the travelling comfort of driving, help improving the working life of Motor Vehicle and the stability of manipulation, be provided with vibration damper on the Motor Vehicle., can not resemble and make double barreled the big discharge capacity racing car owing to be subjected to the restriction of physical dimension for the Motor Vehicle of medium and small discharge capacity, can only do the monotubular formula.The piston rod of monotubular formula inversed front shock absorber up, hydraulic oil below, because the compression ratio of gas is big, thereby must exist a certain amount of gas just can carry out piston motion in the oil pocket, will produce one section idle stroke when but vibration damper moves like this, and this section idle stroke does not just play the effect of damping, cause damping effect to reduce greatly, vehicle is beated, have a strong impact on occupant's travelling comfort and the Security of travelling, for Motor Vehicle certain infringement is arranged also, shortened the working life of car.
Summary of the invention
In view of the existing technical problem of known technology, technical problem to be solved in the utility model provides a kind of motor vehicle damper of avoiding the idle stroke phenomenon, makes the damping effect of Motor Vehicle more perfect, guarantees the smoothness and the travelling comfort of driving.
In order to solve the problems of the technologies described above, the utility model is realized by following mode: this kind motor vehicle damper, include urceolus, positioning pipe, damping spring and front fork tube, described urceolus is connected with positioning pipe, described front fork tube inserts in the oil pocket of urceolus and positioning pipe formation, and with urceolus and positioning pipe slide relative, it is characterized in that described urceolus, positioning pipe and front fork tube form first oil pocket, described front fork tube and positioning pipe form second oil pocket and the 3rd oil pocket, be provided with one-way valve between described first oil pocket and second oil pocket, described first oil pocket communicates with the 3rd oil pocket, be provided with damping hole between described second oil pocket and the 3rd oil pocket, described the 3rd oil pocket is connected with an air cavity, and both are separated by floating piston.
Be provided with the 4th oil pocket between described the 3rd oil pocket and the floating piston, described the 4th oil pocket communicates with the 3rd oil pocket.
Be provided with damping spring in described second oil pocket.
The utility model adopts air cavity to separate the problem that solves the vibration damper idle stroke with oil pocket, when urceolus moves downward, the first, the volume of the 3rd oil pocket reduces, and the volume of second oil pocket increases, and makes the pressure of the pressure of the oil pocket of winning greater than second oil pocket, this moment one-way valve opens, the oil of first oil pocket enters second oil pocket, also have part to flow to the 3rd oil pocket simultaneously, and the 3rd oil pocket pressure becomes big, and during greater than the air pressure in the air cavity, then can promote floating piston and move; When urceolus moves upward, the first, the volume of the 3rd oil pocket becomes big, and the volume of second oil pocket reduces, make the pressure of the pressure of the oil pocket of winning less than second oil pocket, this moment closed check valve, the oil of second oil pocket can only flow to the 3rd oil pocket from damping hole, utilize damping characteristic, suppressed the motion of urceolus, movement velocity slows down, thereby has reached the effect of damping; Simultaneously, the volume of first oil pocket increases needed oil mass and is then replenished by the oil in the 3rd oil pocket, and the pressure of the 3rd oil pocket reduces to make floating piston back to move.So just avoided in the background technique because of existing air the problem of idle stroke to occur in the oil pocket, improved the damping effect of Motor Vehicle, the damping effect that damping spring improves Motor Vehicle once more is set in second oil pocket, bring steady and comfortable ride effects to the passenger, good shock-absorbing function has reduced the Motor Vehicle infringement simultaneously, has prolonged the working life of Motor Vehicle.
Description of drawings
Further describe embodiment's relevant details below in conjunction with accompanying drawing.
Fig. 1 is a structural representation of the present utility model.
Embodiment
With reference to accompanying drawing 1, this kind motor vehicle damper, include urceolus 2, positioning pipe 4, damping spring 9 and front fork tube 11, described urceolus 2 is connected with positioning pipe 4, described front fork tube 11 inserts in the oil pocket of urceolus 2 and positioning pipe 4 formations, and front fork tube 11 and urceolus 2 and positioning pipe 4 slide relative, described urceolus 2, positioning pipe 4 and front fork tube 11 form first oil pocket 3, described front fork tube 11 forms second oil pocket 7 and the 3rd oil pocket 10 with positioning pipe 4, in second oil pocket 7, be provided with damping spring 8, in the 3rd oil pocket 10, be provided with damping spring 9, be provided with one-way valve 5 between described first oil pocket 3 and second oil pocket 7, described positioning pipe 4 is provided with spill port 1 and damping hole 6, described first oil pocket 3 communicates by spill port 1 with the 3rd oil pocket 10, described second oil pocket 7 communicates by damping hole 6 with the 3rd oil pocket 10, and described the 3rd oil pocket 10 is connected with an air cavity 12, and both are separated by floating piston 13.Be provided with the 4th oil pocket 14 between described the 3rd oil pocket 10 and the floating piston 13, described the 4th oil pocket 14 communicates with the 3rd oil pocket 10.
When the wheel of Motor Vehicle is met the road surface of projection, urceolus 2 moves down together with positioning pipe 4, cause the volume of first oil pocket 3 and the 3rd oil pocket 10 to diminish, and the volume of second oil pocket 7 becomes big, make the pressure of the pressure of the oil pocket 3 of winning greater than second oil pocket 7, hydraulic oil in first oil pocket 3 are opened one-way valve 5 and are flowed to second oil pocket 7 at this moment, unnecessary hydraulic oil then enters the 3rd by spill port 1 in first oil pocket 3, the 4th oil pocket, because the volume of the 3rd oil pocket 10 also diminishes, the hydraulic oil of adding first oil pocket 3 enters, make the 3rd, it is big that the pressure of the 4th oil pocket becomes, and when this pressure during greater than the pressure in the air cavity 12, then promotes floating piston 13 and move upward; And when wheel is crossed protruding ground toward the whereabouts, urceolus 2 moves upward, make the volume of second oil pocket 7 diminish, first, it is big that the volume of the 3rd oil pocket becomes, the pressure of such first oil pocket 3 is just less than the pressure of second oil pocket 7, this moment, one-way valve 5 will be closed, and the hydraulic oil of second oil pocket 7 just can only pass through the bluff body resistance, thereby urceolus 2 motions have been suppressed, the speed of moving has slowed down, also just reached the effect of damping, because the hydraulic oil that second oil pocket 7 flows out can not fill first, the volume that the 3rd oil pocket is increased, win thereby make, the 3rd, the 4th oil pocket pressure is less than the pressure in the air cavity 12, and floating piston 13 will be moved downward by the pressure of air cavity 12, makes the hydraulic oil in the 4th oil pocket 14 enter first, the 3rd oil pocket.
The utility model scientific structure design, reasonable, solved a difficult problem that has idle stroke in the prior art, make Motor Vehicle when meeting concavo-convex road surface, its cushioning effect keeps constantly, give passenger safety, comfortable using effect, also reduced the infringement to Motor Vehicle simultaneously, prolonged the working life of Motor Vehicle, the utility model compared with prior art has substantive distinguishing features and progress.
Claims (3)
1, a kind of motor vehicle damper, include urceolus (2), positioning pipe (4), damping spring (9) and front fork tube (11), described urceolus (2) is connected with positioning pipe (4), described front fork tube (11) inserts in the oil pocket of urceolus (2) and positioning pipe (4) formation, and with urceolus (2) and positioning pipe (4) slide relative, it is characterized in that described urceolus (2), positioning pipe (4) and front fork tube (11) form first oil pocket (3), described front fork tube (11) forms second oil pocket (7) and the 3rd oil pocket (10) with positioning pipe (4), be provided with one-way valve (5) between described first oil pocket (3) and second oil pocket (7), described first oil pocket (3) communicates with the 3rd oil pocket (10), be provided with damping hole (6) between described second oil pocket (7) and the 3rd oil pocket (10), described the 3rd oil pocket (10) is connected with an air cavity (12), and both are separated by floating piston (13).
2, a kind of motor vehicle damper according to claim 1 is characterized in that being provided with the 4th oil pocket (14) between described the 3rd oil pocket (10) and the floating piston (13), and described the 4th oil pocket (14) communicates with the 3rd oil pocket (10).
3, a kind of motor vehicle damper according to claim 1 is characterized in that being provided with in described second oil pocket (7) damping spring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820162780XU CN201258937Y (en) | 2008-08-13 | 2008-08-13 | Damper for motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820162780XU CN201258937Y (en) | 2008-08-13 | 2008-08-13 | Damper for motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201258937Y true CN201258937Y (en) | 2009-06-17 |
Family
ID=40773172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820162780XU Expired - Fee Related CN201258937Y (en) | 2008-08-13 | 2008-08-13 | Damper for motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201258937Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956781A (en) * | 2010-10-25 | 2011-01-26 | 重庆瑞翱机电设备有限公司 | Damp self-regulating front damper of motorcycle and manufacturing method thereof |
| CN101975240A (en) * | 2010-10-25 | 2011-02-16 | 重庆瑞翱机电设备有限公司 | Automatic variable damping rear shock absorber of motorcycle and manufacturing method thereof |
| CN101982670A (en) * | 2010-10-25 | 2011-03-02 | 重庆瑞翱机电设备有限公司 | Automatic variable damping front shock absorber of motorcycle and manufacture method thereof |
| CN103486190A (en) * | 2013-10-11 | 2014-01-01 | 重庆瑞翱机电设备有限公司 | Automatic variable damping front shock absorber of motorcycle capable of vibrating along with ups and downs of road surface |
| CN106122343A (en) * | 2016-08-31 | 2016-11-16 | 江门市大长江集团有限公司 | A kind of inversion type front damping device for motorcycle |
| CN108368909A (en) * | 2015-12-10 | 2018-08-03 | Zf腓特烈斯哈芬股份公司 | Damper for motor vehicle |
-
2008
- 2008-08-13 CN CNU200820162780XU patent/CN201258937Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956781A (en) * | 2010-10-25 | 2011-01-26 | 重庆瑞翱机电设备有限公司 | Damp self-regulating front damper of motorcycle and manufacturing method thereof |
| CN101975240A (en) * | 2010-10-25 | 2011-02-16 | 重庆瑞翱机电设备有限公司 | Automatic variable damping rear shock absorber of motorcycle and manufacturing method thereof |
| CN101982670A (en) * | 2010-10-25 | 2011-03-02 | 重庆瑞翱机电设备有限公司 | Automatic variable damping front shock absorber of motorcycle and manufacture method thereof |
| CN101975240B (en) * | 2010-10-25 | 2012-12-26 | 重庆瑞翱机电设备有限公司 | Automatic variable damping rear shock absorber of motorcycle and manufacturing method thereof |
| CN103486190A (en) * | 2013-10-11 | 2014-01-01 | 重庆瑞翱机电设备有限公司 | Automatic variable damping front shock absorber of motorcycle capable of vibrating along with ups and downs of road surface |
| CN108368909A (en) * | 2015-12-10 | 2018-08-03 | Zf腓特烈斯哈芬股份公司 | Damper for motor vehicle |
| CN106122343A (en) * | 2016-08-31 | 2016-11-16 | 江门市大长江集团有限公司 | A kind of inversion type front damping device for motorcycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090617 Termination date: 20100813 |