CN110608257A - Bottom valve flow increasing type automobile hydraulic shock absorber - Google Patents
Bottom valve flow increasing type automobile hydraulic shock absorber Download PDFInfo
- Publication number
- CN110608257A CN110608257A CN201910931555.0A CN201910931555A CN110608257A CN 110608257 A CN110608257 A CN 110608257A CN 201910931555 A CN201910931555 A CN 201910931555A CN 110608257 A CN110608257 A CN 110608257A
- Authority
- CN
- China
- Prior art keywords
- piston
- shock absorber
- bottom valve
- rod
- hydraulic shock
- 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 title claims abstract description 49
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 48
- 239000004519 grease Substances 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 75
- 238000013016 damping Methods 0.000 abstract description 16
- 239000010720 hydraulic oil Substances 0.000 abstract description 16
- 210000001503 joint Anatomy 0.000 abstract description 4
- 230000006835 compression Effects 0.000 description 14
- 238000007906 compression Methods 0.000 description 14
- 239000012530 fluid Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/185—Bitubular units
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
A bottom valve flow increasing type automobile hydraulic shock absorber belongs to the technical field of automobile shock absorbers. Including piston cylinder (3) and cover establish at outside bumper shock absorber shell (7) of piston cylinder (3), piston rod (1) drives piston body (4) reciprocating motion in piston cylinder (3), is provided with bottom valve (9) of first grease chamber (2) of intercommunication and second grease chamber (6) in the bottom of piston cylinder (3), its characterized in that: a circulation channel for communicating the first oil chamber (2) with the second oil chamber (6) is formed in the bottom valve (9), a throttling rod (5) opposite to the circulation channel is arranged at the bottom of the piston body (4), and the throttling rod (5) is in butt joint with or separated from the circulation channel along with the movement of the piston body (4). In the background valve flow-increasing type automobile hydraulic shock absorber, the circulation channel is arranged in the bottom valve, so that the circulation area of hydraulic oil at the bottom valve is increased, the damping force which is generated at the bottom valve due to untimely circulation of the hydraulic oil is effectively relieved, and the riding comfort is improved.
Description
Technical Field
A bottom valve flow increasing type automobile hydraulic shock absorber belongs to the technical field of automobile shock absorbers.
Background
Hydraulic damping is a common damping mode in the field of automobiles. A piston rod and a shock absorber shell in an automobile shock absorber are respectively arranged on an automobile body and a wheel assembly, when the automobile vibrates up and down in the driving process, a piston reciprocates in a piston cylinder, when the piston is in a compression state, the piston rod drives the piston to move in the piston cylinder, the piston compresses the volume of an oil cavity at the lower part of the piston, part of oil in the oil cavity at the lower part of the piston reversely flows to the oil cavity above the piston through a circulation channel on the surface of the piston or the wall of the piston, and the other part of oil flows to an external oil cavity consisting of the piston cylinder and the shock absorber shell through a bottom valve arranged at the bottom of the piston cylinder. When the piston is restored, the piston rod pulls the piston to move towards the opening of the piston cylinder, at the moment, the piston compresses the volume of the upper oil cavity of the piston, part of oil in the upper oil cavity of the piston reversely flows to the oil cavity below the piston through the surface of the piston or a circulation channel on the wall of the piston, the volume of the lower oil cavity of the piston is increased due to the fact that the piston is far away from the bottom valve, the volume of the oil in the lower oil cavity of the piston is changed, the oil pressure of the external oil cavity enables the bottom valve to be opened, and the oil in the external oil cavity is quickly supplemented into the piston cylinder through the. Thereby playing the role of supplementing oil.
In the prior art, the moving amplitude of a piston rod in an automobile shock absorber is directly proportional to the vibration amplitude degree of an automobile, namely the larger the vibration amplitude of the automobile is, the faster the reciprocating speed of the piston is, and the faster the speed of the piston through which hydraulic oil flows is. When the automobile passes through a bumpy road section at a high speed in the driving process, the distance between the wheels and the automobile body is suddenly reduced, and people in the automobile feel that the automobile is damped to be hardened directly, so that a large bumpy feeling is caused, and passengers feel uncomfortable.
In the above case, the reason why the automobile shock absorber "hardens" is that: when the distance between the wheel and the vehicle body is suddenly reduced, the piston is compressed at the highest speed, the piston rod can drive the piston to enter the piston cylinder at the highest speed, and oil originally located in the oil cavity below the piston cannot flow into the oil cavity above the piston through the overflowing hole in the piston at the same speed, so that the first section of damping force is generated at the piston. In addition, when the piston rod enters the piston cylinder, along with the gradual increase of the length of the piston rod entering the piston cylinder, the volume of an oil cavity occupied by the volume of the piston rod is gradually increased, and at the moment, the rate of oil liquid with the same volume as the piston rod flowing into an external oil cavity through the bottom valve is far less than the rate of the piston rod entering the piston cylinder, so that a second section of damping force is formed at the bottom valve at the bottom of the piston cylinder, and the occurrence of the automobile shock absorption hardening condition is caused due to the existence of the two sections of damping forces. In the prior art, the effect of controlling the flow of the hydraulic oil when the pressure changes greatly in a short time can be realized through an electric control system, but the electric control system is expensive and the control process is complex. Therefore, the design of the automobile hydraulic shock absorber which effectively relieves the damping force at the piston and the bottom valve during the extreme-speed compression of the piston becomes a problem to be solved urgently at present.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the defects of the prior art are overcome, the flow passage is arranged in the bottom valve, the flow area of the hydraulic oil at the bottom valve is increased, the damping force which is generated when the hydraulic oil is not circulated in time at the bottom valve is effectively relieved, and the riding comfort of the bottom valve flow-increasing type automobile hydraulic shock absorber is improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: bottom valve increases a class formula car hydraulic shock absorber ware, including the piston barrel, the piston barrel is the first grease chamber of bumper shock absorber, is provided with the second grease chamber of bumper shock absorber in the outside of piston barrel, and the piston rod drives piston body reciprocating motion in the piston barrel, is provided with the bottom valve of the first grease chamber of intercommunication and the second grease chamber in the bottom of piston barrel, its characterized in that: the bottom valve is internally provided with a circulation channel for communicating the first oil chamber with the second oil chamber, the bottom of the piston body is provided with a plugging piece opposite to the circulation channel, and the plugging piece is separated from the circulation channel along with the movement of the piston body or sleeved with the circulation channel and plugs the circulation channel.
Preferably, a flow pipe is arranged in the bottom valve, the flow pipe penetrates into the bottom valve, the blocking piece is a throttle rod, and the throttle rod is sleeved or separated with the flow passage through the flow pipe.
Preferably, the throttle lever is a metal lever.
Preferably, the throttle rod is a rubber rod.
Preferably, a rubber layer is provided on an outer ring of the throttle lever.
Preferably, the inner wall of the piston cylinder is provided with an overflow groove along the axial direction of the piston cylinder.
Preferably, a valve core is arranged in the middle of the bottom valve, a circulation pipe penetrates through the bottom valve, the lower part of the circulation pipe is opened, and the first oil chamber and the second oil chamber are communicated to form a circulation channel.
Preferably, the bottom of the block piece is tapered or stepped.
Preferably, the bottom of the piston rod is provided with a groove, the upper end of the throttle rod penetrates through the piston body from bottom to top and then enters the groove of the piston rod, and a boss for placing the throttle rod to fall out is arranged at an opening of the groove of the piston rod.
Preferably, a piston rod spring is placed in the groove of the piston rod.
Compared with the prior art, the invention has the beneficial effects that:
1. in the background valve flow-increasing type automobile hydraulic shock absorber, the circulation channel is arranged in the bottom valve, so that the circulation area of hydraulic oil at the bottom valve is increased, the damping force which is generated at the bottom valve due to untimely circulation of the hydraulic oil is effectively relieved, and the riding comfort is improved.
2. Through setting up the throttle lever, when the car was crossed the extremely high barrier of height, the throttle lever cup jointed the back with the runner pipe shutoff with the runner pipe, consequently hydraulic oil also can't circulate through the runner pipe, effectively avoids car "end support", has guaranteed that the car can not damage.
3. Through set up the overflow groove in the piston cylinder, alleviated the damping force that appears in the untimely circulation of hydraulic oil in piston body department simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment 1 of a bottom valve flow-increasing type automobile hydraulic shock absorber.
Fig. 2 is an enlarged view of fig. 1 at a.
Fig. 3 is a structural schematic diagram of a bottom valve of the bottom valve flow-increasing type automobile hydraulic shock absorber.
Fig. 4 is a sectional view of a bottom valve of a flow-increasing type hydraulic shock absorber of an automobile.
FIG. 5 is a sectional view of a base valve of a flow-increasing type hydraulic shock absorber of an automobile according to embodiment 4.
Fig. 6 is a schematic structural diagram of an embodiment 8 of the bottom valve flow-increasing type automobile hydraulic shock absorber.
Fig. 7 is a schematic structural diagram of an embodiment 9 of the bottom valve flow-increasing type automobile hydraulic shock absorber.
Wherein: 1. the piston rod 2, the first oil chamber 3, the piston cylinder 4, the piston body 5, the throttle rod 6, the second oil chamber 7, the shock absorber shell 8, the circulating pipe 9, the bottom valve 10, the overflowing groove 11, the bottom valve shell 12, the shell constant through hole 13, the bottom valve base 14, the base constant through hole 15, the recovery channel 16, the compression channel 17, the compression valve plate 18, the valve core 19, the valve core spring 20, the recovery valve plate 21, the valve core channel 22 and the piston rod spring.
Detailed Description
FIG. 1 ~ 4 shows a preferred embodiment of the present invention, which is further described below with reference to FIG. 1 ~ 7.
Example 1:
as shown in fig. 1, the bottom valve flow-increasing type automobile hydraulic shock absorber comprises a shock absorber shell 7, a piston cylinder 3 is arranged inside the shock absorber shell 7, a second oil chamber 6 of the bottom valve flow-increasing type automobile hydraulic shock absorber is formed between the piston cylinder 3 and the shock absorber shell 7 at intervals, and an inner cavity of the piston cylinder 3 is a first oil chamber 2 of the bottom valve flow-increasing type automobile hydraulic shock absorber.
A piston body 4 is arranged in the piston cylinder 3, one end of a piston rod 1 is fixed at the center of the piston body 4, the other end of the piston rod is upwards output from the upper port of the piston cylinder 3, and the piston rod 1 drives the piston body 4 to reciprocate in the piston cylinder 3. Flow holes (not shown) are respectively arranged on the periphery of the piston body 4, so that when the piston body 4 moves upwards or downwards, hydraulic oil flows through the piston in a reciprocating manner in the opposite direction of the piston through the flow channels on the piston or the piston wall. The bottom valve 9 is further installed at the bottom of the piston cylinder 3, the bottom valve 9 is communicated with the first oil chamber 2 and the second oil chamber 6, and when the piston body 4 moves upwards or downwards, oil is supplemented into the first oil chamber 2 from the second oil chamber 6, or the oil is discharged into the second oil chamber 6 from the first oil chamber 2 through the bottom valve 9.
Referring to fig. 2, a plurality of overflow grooves 10 are formed in the inner wall of the middle portion of the piston cylinder 3, and the overflow grooves 10 are formed in the inner wall of the piston cylinder 3 along the axial direction of the piston cylinder 3. When piston body 4 reciprocating motion under the drive of piston rod 1, fluid realizes flowing through overflow groove 10, consequently can increase fluid at the flow area at piston body 4 both ends through setting up overflow groove 10, when the at utmost eliminates the piston extremely fast compression, because of the untimely damping force who forms in piston body 4 department of piston body 4 department fluid circulation of piston body 4 department.
The top of the bottom valve 9 is provided with a flow pipe 8, and a flow passage is formed in the bottom valve 9 through the flow pipe 8, so that when the piston body 4 reciprocates under the drive of the piston rod 1, oil can directly pass through the flow pipe 8 to and fro the first oil chamber 2 and the second oil chamber 6 besides passing through the bottom valve 9, the flow area of the oil at the bottom valve 9 is increased through the flow pipe 8, and the damping force formed at the bottom valve 9 due to untimely circulation of the bottom valve 9 when piston compression is eliminated to the maximum extent.
The lower part of the piston body 4 is provided with the throttle lever 5 butted with the circulating pipe 8, when the throttle lever 5 moves to the position of the circulating pipe 8 along with the piston body 4, the throttle lever 5 is sleeved with the circulating pipe 8, the throttle lever 5 plugs the circulating pipe 8 when in sleeving, oil in the first oil chamber cannot enter the second oil chamber 6 through the circulating pipe 8, and all the oil enters the second oil chamber 6 through the compression valve system of the bottom valve 9.
And further, the length of the circulating pipe 8 and the length of the throttle rod 5 are adjusted, so that the butt joint position of the throttle rod 5 and the circulating pipe 8 can be adjusted, and the adjustment of the damping force value switching position of the piston (shock absorber) is realized. In this embodiment, the throttle lever 5 is made of a solid metal material.
As shown in fig. 3 ~ 4, the base valve 9 includes a base valve seat 13, a base valve housing 11 is covered above the base valve seat 13, an annular boss is provided at the lower part of the base valve housing 11, and the bottom periphery of the piston cylinder 3 is clamped outside the annular boss to realize the butt joint of the base valve 9 and the piston cylinder 3.
A plurality of shell constant through holes 12 are formed in the upper periphery of the bottom valve shell 11, and a plurality of base constant through holes 14 are also formed in the bottom of the bottom valve base 13. The base valve 9 is mounted at the bottom of the piston cylinder 3 and the housing through-hole 12 is located in the first oil chamber 2, while the base through-hole 14 is located in the second oil chamber 6. The first oil chamber 2 and the second oil chamber 6 are connected by a bottom valve 9.
The top of bottom valve base 13 is provided with the boss, and bottom valve shell 11 is installed in the boss department at bottom valve base 13 top, and the protruding boss cooperation with bottom valve base 13 top in bottom valve shell 11 middle part forms the bottom valve inner chamber. The bottom center of the bottom valve base 13 is provided with a base inner cavity from bottom to top, and a valve core 18 is arranged in the bottom valve inner cavity. A valve core channel 21 penetrating through the valve core 18 is arranged at the axis of the valve core 18, and the circulation pipe 8 penetrates through the top surface of the bottom valve shell 11, penetrates through the valve core channel 21 and then extends to the bottom of the bottom valve base 13, so that the second oil chamber 6 is communicated with the first oil chamber 2.
A compression channel 16 is arranged on the outer ring of the valve core 18, a recovery channel 15 is arranged on the outer side of the compression channel 16, and a recovery valve plate 20 and a compression valve plate 17 are sleeved on the outer ring of the valve core 18.
A spool spring 19 is mounted between the return valve plate 20 and the upper end of the spool 18, and the return valve plate 20 is brought into contact with the upper port of the return passage 15 by the driving of the spool spring 19. When the piston rod 1 drives the piston body 4 to move (compress) downwards, oil presses the compression valve plate 17 downwards to form a gap with the compression channel 16, and the oil flows into the second oil chamber 6 from the first oil chamber 2. When the piston rod 1 drives the piston body 4 to move upwards (restore), oil presses the restoring valve plate 20 upwards to form a gap with the restoring channel 15, and the oil is supplemented into the first oil chamber 2 from the second oil chamber 6.
The specific working process and working principle are as follows:
in the background valve flow-increasing type automobile hydraulic shock absorber, a piston rod 1 and a shock absorber shell 7 are respectively arranged at an automobile body and a wheel assembly of an automobile, when the automobile vibrates, the automobile body and the wheel assembly move relatively, and a piston body 4 correspondingly makes reciprocating motion in a first oil chamber 2. In a normal state of the automobile, the piston body 4 reciprocates within a range in which the overflow groove 10 is opened in the piston cylinder 3. When the piston compression, piston rod 1 drives piston body 4 and stretches into in the piston cylinder 3, and the hydraulic oil that is located 4 lower parts of piston body this moment circulates through the circulation passageway of overflow groove 10 or/and piston body 4 itself, owing to set up overflow groove 10, has consequently increased the flow area of fluid at 4 both ends of piston body, when the piston compression was eliminated to the at utmost, because of the untimely damping force that forms in 4 departments of piston body of the circulation of fluid of 4 departments of piston body.
When the piston is compressed, the oil in the oil chamber at the lower part of the piston body 4 flows into the second oil chamber 6 through the circulating pipe 8 and the bottom valve 9, and the damping force formed at the bottom valve 9 due to the fact that the oil at the bottom valve 9 is not circulated in time when the piston is compressed at the highest speed is eliminated to the greatest extent.
Therefore, in the background valve flow-increasing type automobile hydraulic shock absorber, in the running process of an automobile, the flow area of hydraulic oil is increased at the piston body 4 and the bottom valve 9, so that the damping force caused by untimely flow of the hydraulic oil at the piston body 4 and the bottom valve 9 is eliminated to the maximum extent, the phenomenon that the automobile body is hardened is avoided, and the riding comfort is greatly improved.
When the car is because of special circumstances when the high barrier of road-crossing, piston body 4 removes the lower part to piston cylinder 3, hydraulic oil has been unable from the great place department circulation of flow area of overflow groove 10 this moment, and throttle lever 5 removes to runner pipe 8 department along with piston body 4 simultaneously, and throttle lever 5 cup joints back with runner pipe 8 and seals up runner pipe 8, and consequently hydraulic oil also can't circulate through runner pipe 8, effectively avoids car "end support", has guaranteed that the car can not damage.
Example 2:
this embodiment is different from embodiment 1 in that: in this embodiment, a plurality of grooves are formed in the outer wall of the throttle lever 5, at least one groove is formed in the axial direction of the throttle lever 5, and the depth of the groove is reduced from bottom to top.
Example 3:
this embodiment is different from embodiment 1 in that: in this embodiment, the lower end of the throttle lever 5 is tapered to facilitate the sleeve connection with the flow pipe 8.
Example 4:
this embodiment is different from embodiment 1 in that: in this embodiment, as shown in fig. 5, the spool 18 is omitted and the flow pipe 8 passes through the center of the base valve 9.
Example 5:
this embodiment is different from embodiment 1 in that: in this embodiment, the throttle lever 5 is made of rubber, so that the sealing between the throttle lever 5 and the flow tube 8 is facilitated.
Example 6:
this embodiment is different from embodiment 1 in that: in this embodiment, a rubber layer is coated on the outside of the throttle lever 5, thereby facilitating the sealing between the throttle lever 5 and the flow pipe 8.
Example 7:
this embodiment is different from embodiment 1 in that: in this embodiment, the upper end of the throttle lever 5 is closed, a groove is formed from the lower end of the throttle lever 5, and when the throttle lever 5 is butted against the circulation pipe 8, the throttle lever 5 is sleeved outside the circulation pipe 8 to stop the circulation pipe 8.
Example 8:
this example differs from example 1 in that: as shown in fig. 6, in the present embodiment, the second oil chamber 6 is not sleeved outside the first oil chamber 2, but is located on one side of the first oil chamber 2, and the first oil chamber 2 and the second oil chamber 6 are communicated through a channel formed by a housing.
Example 9:
this example differs from example 1 in that: as shown in fig. 7, in the present embodiment, a groove is formed upward from the lower end of the piston rod 1, the upper end of the throttle lever 5 penetrates through the piston body 4 from bottom to top and then enters the groove of the piston rod 1, a piston rod spring 22 is disposed in the groove of the piston rod 1, and a stop table overlapped with each other is disposed at the opening of the groove of the piston rod 1 and the upper end of the throttle lever 5, so as to prevent the throttle lever 5 from popping out of the groove of the piston rod 1 under the action of the piston rod spring 22.
When the throttle lever 5 enters the circulation pipe 8 to plug the circulation pipe 8 and the depth of the throttle lever 5 entering the circulation pipe 8 is too large to release the bottom surface of the damper housing 7, the throttle lever 5 enters the piston rod 1 and the damage of the throttle lever 5 is effectively avoided under the buffer action of the piston rod spring 22.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a bottom valve increases a class formula car hydraulic shock absorber, includes piston cylinder (3), piston cylinder (3) are first grease chamber (2) of bumper shock absorber, are provided with second grease chamber (6) of bumper shock absorber in the outside of piston cylinder (3), and piston rod (1) drives piston body (4) reciprocating motion in piston cylinder (3), is provided with bottom valve (9) of first grease chamber (2) of intercommunication and second grease chamber (6) in the bottom of piston cylinder (3), its characterized in that: set up the circulation passageway of intercommunication first grease chamber (2) and second grease chamber (6) in bottom valve (9), be provided with the shutoff piece relative with the circulation passageway in the bottom of piston body (4), the shutoff piece separates with the circulation passageway along with the removal of piston body (4), or cup joints with the circulation passageway and with the circulation passageway shutoff.
2. The base valve flow-increasing hydraulic shock absorber for an automobile according to claim 1, wherein: a circulation pipe (8) is arranged in the bottom valve (9), the circulation pipe (8) penetrates into the bottom valve (9), the plugging piece is a throttle rod (5), and the throttle rod (5) is sleeved or separated with a circulation channel through the circulation pipe (8).
3. The base valve flow increasing type hydraulic shock absorber for an automobile according to claim 2, wherein: the throttle rod (5) is a metal rod.
4. The base valve flow increasing type hydraulic shock absorber for an automobile according to claim 2, wherein: the throttle rod (5) is a rubber rod.
5. The base valve flow increasing type hydraulic shock absorber for an automobile according to claim 2, wherein: and a rubber layer is arranged on the outer ring of the throttle lever (5).
6. The base valve flow-increasing hydraulic shock absorber for an automobile according to claim 1, wherein: and an overflow groove (10) is formed in the inner wall of the piston cylinder (3) along the axial direction of the piston cylinder (3).
7. The base valve flow increasing type hydraulic shock absorber for an automobile according to claim 2, wherein: a valve core (18) is arranged in the middle of the bottom valve (9), the circulating pipe (8) penetrates through the bottom valve (9), the lower portion of the circulating pipe (8) is opened, and the first oil chamber (2) and the second oil chamber (6) are communicated to form a circulating channel.
8. The base valve flow-increasing hydraulic shock absorber for an automobile according to claim 1, wherein: the bottom of the plugging piece is conical or step-shaped.
9. The base valve flow increasing type hydraulic shock absorber for an automobile according to claim 2, wherein: the bottom of the piston rod (1) is provided with a groove, the upper end of the throttle rod (5) penetrates through the piston body (4) from bottom to top and then enters the groove of the piston rod (1), and a boss for placing the throttle rod (5) to fall out is arranged at the opening of the groove of the piston rod (1).
10. The base valve flow-increasing hydraulic shock absorber for an automobile according to claim 9, wherein: a piston rod spring (22) is arranged in the groove of the piston rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910931555.0A CN110608257A (en) | 2019-09-29 | 2019-09-29 | Bottom valve flow increasing type automobile hydraulic shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910931555.0A CN110608257A (en) | 2019-09-29 | 2019-09-29 | Bottom valve flow increasing type automobile hydraulic shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110608257A true CN110608257A (en) | 2019-12-24 |
Family
ID=68893785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910931555.0A Pending CN110608257A (en) | 2019-09-29 | 2019-09-29 | Bottom valve flow increasing type automobile hydraulic shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110608257A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1135934A1 (en) * | 1982-11-19 | 1985-01-23 | Предприятие П/Я А-3501 | Hydraulic shock absorber |
| FR2549557A1 (en) * | 1983-07-20 | 1985-01-25 | Creusot Loire | MULTI-RATE ENERGY HYDRAULIC DISSIPER |
| GB2159604A (en) * | 1984-05-28 | 1985-12-04 | Boge Gmbh | An adjustable hydraulic damper |
| DE19918195C1 (en) * | 1999-04-22 | 2000-09-28 | Klaus Leben | Tension/compression buffer for rail vehicle or automobile coupling has piston element displaced from neutral position in opposite directions with hydraulic damping of its return movement |
| CN2723765Y (en) * | 2004-09-09 | 2005-09-07 | 陆杰 | Double oil cylinder variable damping rear damper |
| CN202194990U (en) * | 2011-08-25 | 2012-04-18 | 长春孔辉汽车科技有限公司 | Bidirectional hydraulic limit shock absorber |
| CN210623460U (en) * | 2019-09-29 | 2020-05-26 | 郭怀宝 | Bottom valve flow increasing type automobile hydraulic shock absorber |
-
2019
- 2019-09-29 CN CN201910931555.0A patent/CN110608257A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1135934A1 (en) * | 1982-11-19 | 1985-01-23 | Предприятие П/Я А-3501 | Hydraulic shock absorber |
| FR2549557A1 (en) * | 1983-07-20 | 1985-01-25 | Creusot Loire | MULTI-RATE ENERGY HYDRAULIC DISSIPER |
| GB2159604A (en) * | 1984-05-28 | 1985-12-04 | Boge Gmbh | An adjustable hydraulic damper |
| DE19918195C1 (en) * | 1999-04-22 | 2000-09-28 | Klaus Leben | Tension/compression buffer for rail vehicle or automobile coupling has piston element displaced from neutral position in opposite directions with hydraulic damping of its return movement |
| CN2723765Y (en) * | 2004-09-09 | 2005-09-07 | 陆杰 | Double oil cylinder variable damping rear damper |
| CN202194990U (en) * | 2011-08-25 | 2012-04-18 | 长春孔辉汽车科技有限公司 | Bidirectional hydraulic limit shock absorber |
| CN210623460U (en) * | 2019-09-29 | 2020-05-26 | 郭怀宝 | Bottom valve flow increasing type automobile hydraulic shock absorber |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101441519B1 (en) | Junction bleed | |
| CN103291823B (en) | Nested check high speed valve | |
| US9080634B2 (en) | Shock absorber with frequency dependent passive valve | |
| CN106795934B (en) | The damper of passive valve with dependent Frequency | |
| CN104379960B (en) | For damping system between the two-region of amortisseur | |
| KR20160046798A (en) | Shock absorber with frequency dependent passive valve | |
| US20160025181A1 (en) | Shock absorber with frequency dependent passive valve | |
| JP6530809B2 (en) | Shock absorber with frequency dependent passive valve | |
| CN105805218A (en) | Magnetorheological valve control damping-controllable shock absorber | |
| CN108980258B (en) | Magneto-rheological damping regulating valve | |
| CN208221450U (en) | A kind of hydraulic shock-absorption piston and hydraulic damper with throttle valve plate | |
| CN210623460U (en) | Bottom valve flow increasing type automobile hydraulic shock absorber | |
| JP2000018308A (en) | Hydraulic shock absorber | |
| CN111720476B (en) | Shock absorber valve system and automotive suspension system | |
| CN110608257A (en) | Bottom valve flow increasing type automobile hydraulic shock absorber | |
| CN108916290B (en) | Hydraulic buffering structure of shock absorber | |
| CN211082667U (en) | Hydraulic shock absorber for automobile | |
| CN211715617U (en) | Air spring and automobile hydraulic shock absorber | |
| CN211082663U (en) | Hydraulic shock absorber for automobile | |
| CN201068949Y (en) | Structure modified automobile anti-vibration device | |
| CN210623464U (en) | Bottom flow increasing type automobile hydraulic shock absorber | |
| CN210623461U (en) | Lateral flow increasing type automobile hydraulic shock absorber | |
| CN209743462U (en) | hydraulic vibration reduction piston with adjustable damping and hydraulic vibration reducer | |
| CN215861470U (en) | Hydraulic shock absorber for automobile | |
| JPH0719643U (en) | Vehicle shock absorber |
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 |