CN2649374Y - Inverted front vibration damper - Google Patents
Inverted front vibration damper Download PDFInfo
- Publication number
- CN2649374Y CN2649374Y CN 200320114407 CN200320114407U CN2649374Y CN 2649374 Y CN2649374 Y CN 2649374Y CN 200320114407 CN200320114407 CN 200320114407 CN 200320114407 U CN200320114407 U CN 200320114407U CN 2649374 Y CN2649374 Y CN 2649374Y
- Authority
- CN
- China
- Prior art keywords
- branch unit
- damper branch
- damper
- urceolus
- front fork
- 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.)
- Expired - Fee Related
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- Fluid-Damping Devices (AREA)
Abstract
An inversion typed front shock absorber applied for middle or high grade off-road vehicle is characterized in that: A. one end of a front breeches pipe 2 is sleeved with an bottom barrel 1, the other end is sleeved with an outer barrel 4. Bushes 8 and 12 are arranged between the outer wall of the front breeches pipe 2 and the inner wall of the outer barrel 4. B. A damper subassembly 15 whose outside is sleeved with a shock absorption spring 16 is arranged in the front breeches pipe 2. One end of the shock absorption spring 16 is contacted with locating base 17. The other end is spaced by a bush seat 10 disposed on the damper subassembly 15. A piston ring 11 is arranged between the bush seat 10 and the inner wall of the front breeches pipe 2. C. A bottom valve combination 35 installed on one end of the damper subassembly 5 is composed by a locating bolt 29 which goes through a spacing pad 30 and valve slice 31 and then is sleeved with a bottom valve body 32 and bottom valve seat 33. The design of the utility model decreases frictional resistance of moving, increases bending strength, improves service performance, which is simple in structure, convenient to be processed, low in cost, and eliminates 'sinking joint' phenomenon.
Description
One, technical field:
The utility model relates to a kind of bumper, especially is applicable to the inversed front shock absorber of middle and high shelves cross-country car and racing car.
Two, background technology:
At present, the domestic front shock absorber of producing voluntarily that everybody was familiar with is mainly front set absorber, and this bumper mainly is made up of parts such as end tube, front fork tube, piston tube, damping spring and oil sealings.When this bumper is installed front fork tube up, end tube is downward, front fork tube and the upper and lower connecting panel of former car direction post are connected, hydraulic oil makes the compression of damping spring or resets and realize damping by being arranged on damping hole on the piston tube.Its damper branch unit is a bitubular damper branch unit, and structure is complicated, and under the different motion speed condition, the variation of damping hole is always steady state value, and with the variation of speed, resistance---speed is linear, and damping effect is relatively poor.In addition, the front fork tube of this bumper surface contacts with outer tube inner wall, and friction force is bigger during motion, if will reduce friction, just must improve the working accuracy of urceolus, and the urceolus hole is a deep hole, and difficulty of processing is big, and working accuracy also is difficult for guaranteeing.Because positively fixed type bumper mounting means limits, the bending strength of its breeches pipe a little less than, influence in-use performance because of distortion easily.In addition, the early stage inversion type bumper compression damping of producing is less or do not have compression damping power, when car load in brake process or road conditions when relatively poor, " countersunk head " phenomenon appears in car load entirely.
Three, summary of the invention:
The purpose of this utility model provides a kind of inversed front shock absorber, and by changing the structure of existing front shock absorber, it is poor to solve existing front shock absorber in-use performance, and the big and car load of friction in pairs resistance is prone to the problem of " countersunk head ".
Concrete scheme of the present utility model is: comprise end tube, front fork tube, cover of dust, urceolus, end cap, cushion rubber, liner clamp, packing ring, oil sealing, damping spring, positioning seat, damper branch unit, screw etc., it is characterized in that: A. front fork tube one headgear is equipped with end tube, the other end is set with urceolus, is provided with lining between front fork tube outer wall and the outer tube inner wall; B. be provided with the damper branch unit in the front fork tube, the damper branch unit is set with damping spring outward, and one of damping spring contacts with positioning seat, and the other end is spacing by the liner clamp that is arranged on the damper branch unit, is provided with piston ring between liner clamp and the front fork tube inwall; C. the bottom valve combination that is contained in damper branch unit one end is to penetrate spacing pad and valve block by dowel bolt, and suit bottom valve body and foot valve seat constitute again.
This scheme is provided with the damper branch unit in front fork tube, make the damping and the moving situation of bumper obtain perfect adaptation, improved damping performance, between front fork tube and urceolus, be provided with lining, in whole motion process, the front fork tube outer wall not with the outer tube inner wall direct contact, area of contact reduces, friction force reduces, and has improved the kinematic dexterity of bumper.In addition, establish the bottom valve combination in the damper branch unit, increased compression damping power, solved relatively poor " countersunk head " problem of road conditions in the brake process.
Friction force when adopting such scheme to reduce motion has increased bending strength, has improved in-use performance, and it is simple in structure, handling ease, and low cost of manufacture has been eliminated " countersunk head " phenomenon.
Four, description of drawings:
Fig. 1 is a structural representation of the present utility model, also is an embodiment of the present utility model.
Fig. 2 is the structural representation of damper branch unit among Fig. 1.
Five, the specific embodiment:
Please see Figure 1, Fig. 2, the utility model mainly is made up of end tube 1, front fork tube 2, cover of dust 3, urceolus 4, end cap 5, cushion rubber 6, lining 8 and 12, liner clamp 10, piston ring 11, packing ring 13, oil sealing 14, damper branch unit 15, damping spring 16, positioning seat 17, screw 18, bottom valve combination 35 etc., it is characterized in that: A. front fork tube 2 one headgears are equipped with end tube 1, the other end is set with urceolus 4, is provided with lining 8 and 12 between front fork tube 2 outer walls and urceolus 4 inwalls; B. be provided with damper branch unit 15 in the front fork tube 2, the damper branch unit 15 outer damping springs 16 that are set with, 16 1 of damping springs contact with positioning seat 17, and the other end is spacing by the liner clamp 10 that is arranged on the damper branch unit 15, is provided with piston ring 11 between liner clamp 10 and front fork tube 2 inwalls; C. the bottom valve combination 35 that is contained in damper branch unit 15 1 ends is to penetrate spacing pad 30 and valve block 31 by dowel bolt 29, and suit bottom valve body 32 and foot valve seat 33 constitute again.
As can be seen from Figure 1: lining 8 is by supporting sleeve 9 location; Lining 12 is by packing ring 13 location that are arranged in the urceolus 4; Liner clamp 10 is by registration arm 7 location.
It can also be seen that from Fig. 1: one of damper branch unit 15 band bottom valves combination 35 penetrates positioning seat 17 and is connected with the screw 18 of end tube 1 end, and the connecting rod 19 of damper branch unit 15 other ends is threaded with the end cap 5 that is connected urceolus 4 ends.
As can be seen from Figure 2: damper branch unit 15 is made up of bottom valve combination 35, piston body 26, jam nut 27, clutch release slave cylinder 28, valve block 25, spacing pad 24, buffer spring 23, guide holder 22, oil seal spacer ring 21, back-up ring 20, connecting rod 19, wherein clutch release slave cylinder 28 interior one be provided with piston body 26 and guide holder 22, be set with spacing pad 24 in the piston body 26,19 1 on connecting rod penetrates guide holder 22 and spacing pad 24 backs are locked by jam nut 27, is set with buffer spring 23 on the connecting rod 19 between guide holder 22 and the spacing pad 24; Clutch release slave cylinder 28 is set with by back-up ring 34 spacing bottom valves and makes up 35.It can also be seen that from Fig. 2: damper branch unit 15 is damper branch units of a kind of monotubular structure.
The utility model is work like this: urceolus 4 and the upper and lower connecting panel of former car direction post are connected, add damping oil in monotubular damper branch unit 15, and make damping oil be higher than piston body 26.When bumper is compressed, urceolus 4 drives the connecting rod 19 of damper branch unit 15 under external force to illustrating left to motion, force the damping hole of damping oil on valve block 31 of clutch release slave cylinder 28 inner chambers to produce resistance to compression pression, make the inner hyperbaric chamber that forms of damper branch unit, this moment, damping spring 16 was compressed, and realized cushioning effect.Be returned in the process of original length at damping spring 16, effort is on liner clamp 10, liner clamp 10 moves right through the connecting rod 19 that registration arm 7 drives damper branch unit 15, force flow through damping hole on the valve block 25 of the damping oil of clutch release slave cylinder 28 right-hand members to produce and restore resistance, damping spring 16 is resetted.In whole motion process, support by lining 8 and 12 between the outer wall of front fork tube 2 and urceolus 4 inwalls, do not have direct contact, not only reduced friction force between the two, and improved the kinematic dexterity and the bending strength of bumper.
Claims (5)
1. inversed front shock absorber, comprise end tube (1), front fork tube (2), cover of dust (3), urceolus (4), end cap (5), cushion rubber (6), liner clamp (10), packing ring (13), oil sealing (14), damping spring (16), positioning seat (17), screw (18), damper branch unit (15), it is characterized in that: A. front fork tube (2) one headgears are equipped with end tube (1), the other end is set with urceolus (4), is provided with lining (8,12) between front fork tube (2) outer wall and urceolus (4) inwall; B. be provided with damper branch unit (15) in the front fork tube (2), the outer damping spring (16) that is set with of damper branch unit (15), (16) one of damping springs contact with positioning seat (17), the other end is spacing by the liner clamp (10) that is arranged on the damper branch unit (15), is provided with piston ring (11) between liner clamp (10) and front fork tube (2) inwall; C. the bottom valve combination (35) that is contained in damper branch unit (15) one ends is to penetrate spacing pad (30) and valve block (31) by dowel bolt (29), and suit bottom valve body (32) and foot valve seat (33) constitute again.
2. inversed front shock absorber according to claim 1 is characterized in that: lining (8) is located by supporting sleeve (9); Lining (12) is by packing ring (13) location that is arranged in the urceolus (4); Liner clamp (10) is located by registration arm (7).
3. inversed front shock absorber according to claim 1 is characterized in that: (15) one of damper branch units pass positioning seat (17) and are connected with the screw (18) of end tube (1) end; Damper branch unit (15) other end is threaded with the end cap (5) that is connected urceolus (4) end.
4. according to claim 1 or 3 described inversed front shock absorbers, it is characterized in that: damper branch unit (15) is by bottom valve combination (35), piston body (26), jam nut (27), clutch release slave cylinder (28), valve block (25), spacing pad (24), buffer spring (23), guide holder (22), oil seal spacer ring (21), back-up ring (20), connecting rod (19) is formed, wherein interior one of clutch release slave cylinder (28) is provided with piston body (26) and guide holder (22), be set with spacing pad (24) in the piston body (26), (19) one on connecting rod penetrates guide holder (22) and spacing pad (24) back is locked by jam nut (27), is set with buffer spring (23) on the connecting rod (19) between guide holder (22) and the spacing pad (24); Clutch release slave cylinder is set with by the spacing bottom valve combination (35) of back-up ring (34).
5. according to claim 1 or 3 described inversed front shock absorbers, it is characterized in that: damper branch unit (15) is a kind of monotubular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320114407 CN2649374Y (en) | 2003-11-01 | 2003-11-01 | Inverted front vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320114407 CN2649374Y (en) | 2003-11-01 | 2003-11-01 | Inverted front vibration damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2649374Y true CN2649374Y (en) | 2004-10-20 |
Family
ID=34345344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320114407 Expired - Fee Related CN2649374Y (en) | 2003-11-01 | 2003-11-01 | Inverted front vibration damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2649374Y (en) |
-
2003
- 2003-11-01 CN CN 200320114407 patent/CN2649374Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |