CN108626297B - shock absorber - Google Patents
shock absorber Download PDFInfo
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- CN108626297B CN108626297B CN201710155950.5A CN201710155950A CN108626297B CN 108626297 B CN108626297 B CN 108626297B CN 201710155950 A CN201710155950 A CN 201710155950A CN 108626297 B CN108626297 B CN 108626297B
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- Prior art keywords
- damping
- pipe
- air bag
- pipe fitting
- liquid
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- 230000035939 shock Effects 0.000 title claims abstract description 65
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 46
- 238000003825 pressing Methods 0.000 claims abstract description 20
- 238000013016 damping Methods 0.000 claims description 94
- 239000007788 liquid Substances 0.000 claims description 61
- 230000006835 compression Effects 0.000 claims description 30
- 238000007906 compression Methods 0.000 claims description 30
- 239000007789 gas Substances 0.000 claims description 16
- 230000001105 regulatory effect Effects 0.000 claims description 15
- 230000000903 blocking effect Effects 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 238000004891 communication Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/005—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper
- F16F13/007—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper the damper being a fluid damper
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/08—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid where gas is in a chamber with a flexible wall
- F16F9/084—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid where gas is in a chamber with a flexible wall comprising a gas spring contained within a flexible wall, the wall not being in contact with the damping fluid, i.e. mounted externally on the damper cylinder
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention relates to a shock absorber, which comprises a shell unit and a buffer unit. The shell unit is provided with an inner space, and the buffer unit is arranged in the inner space. The buffer unit comprises a pressing mechanism and a shock-absorbing mechanism, wherein the shock-absorbing mechanism is provided with an air bag; when the shock absorber is acted by external force, the pressing mechanism pushes against the shock absorbing mechanism, and the air bag is stressed to compress and deform; when the external force is removed, the pressing mechanism does not push the shock absorbing mechanism, and the air bag is expanded to the original size.
Description
Technical Field
The invention relates to a shock absorber.
Background
Because the ground is not flat, the vehicle can continuously vibrate up and down along with the bumpy road surface during traveling, so that not only can internal components be damaged, but also the human body can be uncomfortable and injured. Therefore, the shock absorber is installed to absorb and buffer the impact force generated by the up-and-down vibration when braking or traveling on a rough road. The shock absorber converts the generated impulsive force (vibration energy) into heat energy to be consumed through the resistance when the internal oil body of the shock absorber flows through each element (such as a piston and a damping hole), thereby achieving the effect of buffering.
however, in such shock absorbers, the specifications of the internal components are fixed, such as but not limited to the hardness and softness of the shock springs and the amount of damping during actuation, so that the same shock absorber can only be used for the same type of vehicle and cannot be further adjusted according to different riders or environmental requirements. Therefore, the existing shock absorber cannot meet various requirements, and has the disadvantage of requiring urgent improvement.
Disclosure of Invention
The invention aims to provide a shock absorber, which can adjust the damping according to the use environment and the preference of a rider so as to fully meet various road conditions and provide the comfort level during riding.
In order to achieve the purpose, the invention adopts the following technical scheme:
The invention provides a shock absorber, which comprises: a shell unit and a buffer unit. The shell unit comprises a first pipe fitting and a second pipe fitting which are connected in a sliding manner, and the first pipe fitting and the second pipe fitting enclose an inner space. The buffer unit is arranged in the inner space and comprises a pressing mechanism and a shock absorption mechanism, the shock absorption mechanism comprises a damping component, the damping component is provided with a cylinder, an air bag for containing air and an air adjusting unit, the air bag is contained in the cylinder, the air adjusting unit comprises an air channel and an air valve, the air channel is arranged in the cylinder and can be selectively communicated with the outside and the air bag, and the air valve is arranged in the air channel and is used for blocking the air bag from being communicated with the outside. When the first pipe fitting and the second pipe fitting are relatively close to each other under the action of an external force, the pressing mechanism pushes against the shock absorbing mechanism, and the air bag is stressed to be compressed and deformed; when the external force is removed, the pressing mechanism does not push the shock absorbing mechanism, and the air bag is expanded to the original size.
The damping component is further provided with an air regulating unit, the air regulating unit comprises an air passage and an air valve, the air passage is arranged in the barrel and can be selectively communicated with the outside and the air bag, and the air valve is arranged in the air passage and is used for blocking the air bag from being communicated with the outside.
The damping mechanism further comprises a working tube for containing a liquid, a piston of the pressing mechanism is inserted into the working tube for pushing the liquid, the damping assembly further comprises a hollow damping tube and a valve body, the cylinder is connected with the working tube, the damping tube is arranged inside the cylinder, the valve body is positioned between the damping tube and the inner wall of the cylinder, and further forms an containing space with the inner wall of the cylinder in an enclosing manner, the valve body is used for allowing the liquid to selectively flow in the containing space and the inside of the working tube, the air bag is contained in the containing space, the damping tube is provided with at least one liquid channel in a penetrating manner, and the containing space is communicated with the working tube through the at least one liquid channel; when the first pipe fitting and the second pipe fitting are relatively close to each other, the piston pushes the liquid to enter the accommodating space from the working pipe so as to compress the air bag; when the first pipe fitting and the second pipe fitting are relatively far away, the air bag is expanded, and the liquid flows back to the working pipe from the accommodating space.
The valve body is provided with a first side part facing the air bag, a second side part facing the working pipe and a plurality of compression flow passages and a plurality of rebound flow passages which are axially arranged in a penetrating manner, the compression flow passages and the rebound flow passages are not communicated and are arranged in a staggered manner, a stacked sheet unit is arranged on the first side part and only covers the compression flow passages, a check assembly is arranged on the second side part and only covers the rebound flow passages, the check assembly is provided with a first elastic part, a base and a valve plate, the base is sleeved and positioned on the damping pipe, the valve plate is movably sleeved and positioned on the damping pipe, the first elastic part elastically abuts between the base and the valve plate, and the valve plate further normally covers the rebound flow passages; when the first pipe fitting and the second pipe fitting are relatively close and the liquid reaches a preset flow rate, the liquid pushes the sheet unit to be opened, and the liquid enters the accommodating space through the plurality of compression flow passages and the damping pipe simultaneously; when the first pipe fitting and the second pipe fitting are relatively far away, the liquid pushes the non-return component to open, and the liquid returns to the working pipe through the plurality of rebound runners and the damping pipe.
Wherein this damping subassembly includes one in addition and transfers oily unit, should transfer oily unit and include an adjusting lever needle and an regulation mouth, and this regulation mouth is violently established in the inside of this damping pipe, but this adjusting lever needle supplies the external world to control and insert and locate this damping pipe axially movable, and then a top of this adjusting lever needle is optionally worn to establish this regulation mouth in order to change the radial opening size of this regulation mouth axially.
The oil regulating unit is also provided with a communicating piece and a second elastic piece, the communicating piece is arranged inside the damping pipe, one end of the communicating piece is provided with the regulating port in a penetrating manner, the other end of the communicating piece is provided with a connecting port in a penetrating manner, and the second elastic piece elastically supports between the communicating piece and the regulating rod needle, so that the top has a tendency of being far away from the regulating port.
Wherein should transfer oily unit and be equipped with a knob and a spiral shell spare that supply external world pivoted in addition, this knob rotationally locates this barrel, and this spiral shell spare is between this adjusting rod needle and this knob, and this knob and this spiral shell spare are with the rotating relationship, and the movably spiral shell of this spiral shell spare is located the inside of this damping tube and is located the one end of keeping away from this top, and this spiral shell spare is used for leaning on pushing against this adjusting rod needle.
The shock absorber further comprises an exhaust assembly, the exhaust assembly is provided with an exhaust channel and a stopper, the exhaust channel is arranged in the cylinder body in a penetrating mode and communicated with the inside of the first pipe fitting, and the stopper is arranged in the exhaust channel and used for blocking the exhaust channel from being communicated with the outside.
The damping assembly further comprises a supporting seat positioned on the damping tube, the damping tube penetrates through the air bag and protrudes out of an opening end of the air bag, and the supporting seat is sleeved and seals the opening end so as to block the interior of the air bag from being communicated with the accommodating space.
The valve body is provided with a first side part facing the air bag, a second side part facing the working pipe and a plurality of compression flow passages and a plurality of rebound flow passages which are axially arranged in a penetrating manner, the compression flow passages and the rebound flow passages are not communicated and are arranged in a staggered manner, a stacked sheet unit is arranged on the first side part and only covers the compression flow passages, a check assembly is arranged on the second side part and only covers the rebound flow passages, the check assembly is provided with a first elastic part, a base and a valve plate, the base is sleeved and positioned on the damping pipe, the valve plate is movably sleeved and positioned on the damping pipe, the first elastic part elastically abuts between the base and the valve plate, and the valve plate further normally covers the rebound flow passages; when the first pipe fitting and the second pipe fitting are relatively close and the liquid reaches a preset flow rate, the liquid pushes the sheet unit to be opened, and the liquid enters the accommodating space through the plurality of compression flow passages and the damping pipe simultaneously; when the first pipe fitting and the second pipe fitting are relatively far away, the liquid pushes the non-return assembly to open, and the liquid returns to the working pipe through the plurality of rebound runners and the damping pipe simultaneously; the knob is rotatably positioned in the barrel, a convex part axially extends from the knob, a containing groove part is axially and concavely arranged on the screw part, and the convex part is axially and movably limited in the containing groove part; the damping component is also provided with an air regulating unit which comprises an air passage and an air valve, wherein the air passage is arranged in the cylinder body and can be selectively communicated with the outside and the air bag, and the air valve is arranged in the air passage and is used for blocking the air bag from being communicated with the outside; the air valve is provided with a normally closed air inlet part which can be restored and deformed to allow an air guide piece to pass through and is communicated with the air channel; the damping component also comprises a supporting seat positioned on the damping tube, the damping tube penetrates through the air bag and protrudes out of an opening end of the air bag, and the supporting seat is sleeved and sealed on the opening end so as to block the interior of the air bag from communicating with the accommodating space; the supporting seat is provided with a head part, a body part and a ring convex wall, the head part is provided with at least one through hole corresponding to the at least one liquid channel, the body part is tightly and radially wrapped at the opening end, and the ring convex wall extends to the body part in an obliquely expanding way and is attached to the air bag; the number of the at least one liquid channel is two; the gas is nitrogen, and the liquid is oil; the air bag is in a bottle shape and is made of rubber; the damping tube is screwed in the cylinder; the radial dimension of the first tubular member is greater than the radial dimension of the second tubular member; the first pipe fitting is used for connecting a steering structure of a vehicle body, and the second pipe fitting is used for connecting wheels of the vehicle body; the pressing mechanism is positioned on the second pipe, and the shock absorbing mechanism is positioned on the first pipe; the cylinder body is screwed on the first pipe fitting; the working pipe is screwed with the cylinder; the shock absorber further comprises an exhaust assembly, the exhaust assembly is provided with an exhaust channel and a stopper, the exhaust channel is arranged in the cylinder body in a penetrating mode and communicated with the inside of the first pipe fitting, and the stopper is arranged in the exhaust channel and used for blocking the exhaust channel from being communicated with the outside.
The invention has the beneficial effects that: the shock absorber can enable a user to carry out double adjustment on the compression damping through the air adjusting unit and the oil adjusting unit according to the use requirement, and can provide more diversified and more appropriate shock absorption effects according to different environments, so that the shock absorber is more comfortable. Moreover, the air bag is easy to assemble and low in precision, so that the air bag is quick and convenient to manufacture and assemble, and the cost is reduced.
Drawings
FIG. 1 is a cross-sectional view of one embodiment of the present invention.
Fig. 2 is a perspective view of the shock absorbing mechanism of the present invention.
Figure 3 is an exploded view of the damping assembly of the present invention.
Fig. 4 is a schematic view of a fluid compression bladder of the present invention.
FIG. 5 is a schematic view of the fluid return of the present invention.
FIG. 6 is a schematic diagram of the present invention.
Reference numerals: 1: a housing unit; 11: a first pipe member; 12: a second pipe member; 13: an interior space; 21: a buffer unit; 22: a shock absorbing spring; 3: a pressing mechanism; 31: a piston; 4: a shock absorbing mechanism; 41: a working pipe; 42: a damping assembly; 421: a barrel; 422: an accommodating space; 423: a damper tube; 424: a valve body; 425: a first side portion; 426: a second side portion; 427: compressing the flow channel; 428: a rebound runner; 429: a liquid channel; 51: a sheet unit; 52: a backstop assembly; 521: a first elastic member; 522: a base; 523: a valve plate; 61: an air bag; 62: an open end; 63: a supporting seat; 631: a head portion; 632: through holes are formed; 633: a body part; 634: a ring raised wall; 7: a gas regulating unit; 71: a gas channel; 72: an air valve; 73: an air intake portion; 8: an oil regulating unit; 82: adjusting the rod needle; 821: a top portion; 83: a communicating member; 831: a connecting port; 832: an adjustment port; 84: a second elastic member; 85: a knob; 851: a convex portion; 86: a screw member; 861: a slot containing part; 9: an exhaust assembly; 91: an exhaust passage; 92: a stopper; a: and an air guide member.
Detailed Description
The following description is given by way of example only, and is not intended to limit the scope of the invention.
Referring to fig. 1 to 6, which illustrate an embodiment of the present invention, a shock absorber of the present invention includes a housing unit 1 and a buffer unit 21.
The housing unit 1 includes a first pipe 11 and a second pipe 12 connected to each other by sliding, the first and second pipes 11, 12 enclosing an inner space 13. Wherein, a shock absorbing spring 22 is disposed on the housing unit 1, so that the first and second pipes 11, 12 tend to move away from each other. The buffer unit 21 is disposed in the inner space 13, the buffer unit 21 includes a pressing mechanism 3 and a shock absorbing mechanism 4, the pressing mechanism 3 is located on one of the first and second pipes 11, 12, and the shock absorbing mechanism 4 is located on the other of the first and second pipes 11, 12.
In this embodiment, the radial dimension of the first tube 11 is larger than the radial dimension of the second tube 12, the pressing mechanism 3 is located on the second tube 12, and the shock absorbing mechanism 4 is located on the first tube 11. Moreover, the first pipe 11 is used for connecting a steering structure of a vehicle body, and the second pipe 12 is used for connecting wheels of the vehicle body, so that the shock absorbing mechanism 4 can be far away from a braking system, and when the driving time is long or the braking is violent, the operation of the shock absorbing mechanism 4 can be prevented from being influenced by high temperature; moreover, the first pipe 11 with a larger diameter can bear larger torque so as to improve the durability.
The shock absorbing mechanism 4 includes a working tube 41 for containing a liquid and a damping element 42, and a piston 31 of the pressing mechanism 3 is inserted into the working tube 41 for pushing the liquid. The damping assembly 42 includes a cylinder 421, a hollow damping tube 423, a valve 424, an air bag 61 for containing air, and an air adjusting unit 7.
In more detail, the air bag 61 is accommodated in the cylinder 421, the cylinder 421 is connected to the working tube 41, the damping tube 423 is disposed inside the cylinder 421, the valve body 424 is positioned between the damping tube 423 and the inner wall of the cylinder 421, so as to form an accommodating space 422 with the inner wall of the cylinder 421, and the valve body 424 allows the liquid to selectively flow through the accommodating space 422 and the inside of the working tube 41.
More specifically, the air bag 61 is accommodated in the accommodating space 422, the damping tube 423 is provided with at least one fluid passage 429, and the accommodating space 422 is communicated with the working tube 41 through the at least one fluid passage 429. The air regulating unit 7 includes an air passage 71 and an air valve 72, the air passage 71 is disposed in the cylinder 421 and selectively communicates with the outside and the airbag 61, and the air valve 72 is disposed in the air passage 71 to block the airbag 61 from communicating with the outside.
in this embodiment, the number of the at least one fluid passage 429 is two. The working tube 41 is screwed to the cylinder 421, and the damping tube 423 is screwed to the cylinder 421 to facilitate quick assembly and disassembly; similarly, the cylinder 421 is screwed to the first tube 11. In addition, the liquid is oil (damping oil with better viscosity), and the gas is preferably nitrogen, because the thermal expansion coefficient is low, the gas pressure can not obviously rise when the temperature rises, and the whole shock absorber can provide stable shock absorption effect.
When the first tube 11 and the second tube 12 are relatively close to each other due to an external force, the shock absorbing spring 22 is compressed, the pressing mechanism 3 pushes against the shock absorbing mechanism 4, and the air bag 61 is compressed and deformed by the force, that is, the piston 31 pushes the liquid from the working tube 41 into the accommodating space 422 to compress the air bag 61. When the external force is removed, the shock absorbing spring 22 rebounds, the pressing mechanism 3 does not push against the shock absorbing mechanism 4, the first tube 11 and the second tube 12 are relatively far away, the air bag 61 expands to return to the original size, and the liquid flows back to the working tube 41 from the accommodating space 422.
More specifically, the air valve 72 has a normally closed air inlet 73, and the air inlet 73 is elastically deformable for passing an air guide a (e.g., a ball needle) through and communicating with the air passage 71, and the air bag 61 can be inflated/deflated through the air guide a to control the air pressure. Wherein, when the air pressure inside the air bag 61 is greater, the liquid is not easy to compress the air bag 61, i.e. the compression damping is greater, so that the shock-absorbing spring 22 can be compressed only by a greater force, and the approaching speed of the first and second pipes 11, 12 is slow (commonly called as the shock absorber becomes hard); on the contrary, when the internal air pressure of the air bag 61 is small, the air bag 61 is easily compressed, the compression damping is small, and the first and second pipes 11, 12 approach each other quickly (commonly referred to as the shock absorber becoming soft).
Furthermore, the air bag 61 can assist in pushing the liquid to flow back during the inflation process, so as to avoid the generation of bubbles due to too slow backflow speed. Moreover, the liquid and the gas can be separated from each other by the air bag 61, the assembly is convenient and fast, and the high processing precision is not needed, so the production is relatively facilitated and the production cost is reduced.
Preferably, the damping element 42 further includes a supporting seat 63 located on the damping tube 423, the damping tube 423 penetrates through the airbag 61 and protrudes out of an open end 62 of the airbag 61, the supporting seat 63 is sleeved and sealed on the open end 62, so as to block the interior of the airbag 61 from communicating with the accommodating space 422, and thus, during the compression deformation of the airbag 61, air leakage from the open end 62 is prevented, so as to achieve the desired air pressure. In this embodiment, the air bag 61 is in a bottle shape, the air bag 61 is made of rubber, the support base 63 has a head 631, a body 633 and a ring raised wall 634, the head 631 has at least one through hole 632 corresponding to the at least one liquid channel 429, the body 633 is radially fastened to the opening 62, the ring raised wall 634 extends obliquely to the body 633 and abuts against the air bag 61, and the air bag 61 can be supported in both axial and radial directions.
Preferably, the damping device 42 further includes an oil adjusting unit 8, the oil adjusting unit 8 includes an adjusting rod 82 and an adjusting port 832, the adjusting port 832 is transversely disposed inside the damping tube 423, the adjusting rod 82 is configured to be externally controlled and axially movably inserted into the damping tube 423, and a top 821 of the adjusting rod 82 selectively axially penetrates through the adjusting port 832 to change a radial opening size of the adjusting port 832. In this way, the compression damping can also be adjusted by changing the size of the regulating port 832, in more detail, the smaller the opening of the regulating port 832, the slower the liquid flows back to the working tube 41, the greater the compression damping; conversely, as the opening of the tuning port 832 is larger, the compression damping is smaller. More specifically, the oil adjusting unit 8 and the air adjusting unit 7 can be used for dual adjustment of compression damping, so as to achieve wider adjustment range and finer adjustment, for example, users can adjust both of them according to different vehicle bodies, rider weight change and riding road conditions, so as to achieve better and more comfortable buffering and shock absorption effects.
In this embodiment, the oil adjusting unit 8 further includes a communicating member 83 and a second elastic member 84, the communicating member 83 is disposed inside the damping tube 423, one end of the communicating member 83 is disposed through the adjusting opening 832, the other end is disposed through a connecting opening 831, and the second elastic member 84 elastically abuts between the communicating member 83 and the adjusting rod 82, so that the top 821 tends to be away from the adjusting opening 832.
Moreover, the oil adjusting unit 8 is further provided with a knob 85 and a screw 86 for external rotation, the knob 85 is rotatably disposed on the cylinder 421, the screw 86 is disposed between the adjusting rod 82 and the knob 85, the knob 85 and the screw 86 are in the same rotation relationship, the screw 86 is movably screwed inside the damping tube 423 and located at an end far from the top 821, and the screw 86 is used for abutting against and pushing against the adjusting rod 82. Specifically, the knob 85 is rotatably positioned on the cylinder 421, a protrusion 851 axially extends from the knob 85, a slot 861 is axially recessed in the screw 86, and the protrusion 851 is axially movably retained in the slot 861.
It is further discussed that when the vehicle body vibrates due to a slow speed, the liquid flows slowly, and the liquid mainly flows between the working pipe 41 and the accommodating space 422 through the damping pipe 423; when the vehicle body is vibrated due to a fast speed, the liquid flows fast, and the liquid mainly flows through the valve 424.
In this embodiment, the valve body 424 has a first side 425 facing the air bag 61, a second side 426 facing the working tube 41, and a plurality of compression flow passages 427 and a plurality of rebound flow passages 428 passing through the valve body in the axial direction, the plurality of compression flow passages 427 and the plurality of rebound flow passages 428 are alternately arranged without communicating with each other, a stack of sheet units 51 is disposed on the first side 425 and covers only the plurality of compression flow passages 427, and a check member 52 is disposed on the second side 426 and covers only the plurality of rebound flow passages 428.
When the first pipe 11 and the second pipe 12 are relatively close to each other and the liquid reaches a predetermined flow rate, the liquid pushes the thin sheet unit 51 to flex and open, and the liquid simultaneously enters the accommodating space 422 through the plurality of compression flow channels 427 and the damping tube 423; when the first pipe 11 and the second pipe 12 are relatively far away from each other, the liquid pushes the check assembly 52 to open, and the liquid returns to the working pipe 41 through the plurality of rebound passages 428 and the damping pipe 423 at the same time. The check assembly 52 includes a first elastic member 521, a base 522 and a valve plate 523, the base 522 is sleeved on the damping tube 423, the valve plate 523 is movably sleeved on the damping tube 423, the first elastic member 521 elastically abuts between the base 522 and the valve plate 523, and the valve plate 523 normally covers the plurality of rebound runners 428.
The shock absorber further preferably comprises an exhaust assembly 9, the exhaust assembly 9 is provided with an exhaust channel 91 penetrating the cylinder 421 and a stopper 92, the exhaust channel 91 is communicated with the inside of the first pipe 11, and the stopper 92 is disposed in the exhaust channel 91 for blocking the communication with the outside. When the stopper 92 is removed, the excess gas in the first tube 11 can be exhausted, so as to recover the predetermined pressure and keep the shock absorber operating smoothly.
In summary, the shock absorber of the present invention can provide more diversified and appropriate shock absorption effects for different environments and comfort by allowing the user to perform double adjustment of the compression damping through the air adjusting unit and the oil adjusting unit according to the user's needs. Moreover, the air bag is easy to assemble and low in precision, so that the air bag is quick and convenient to manufacture and assemble, and the cost is reduced.
Claims (9)
1. a shock absorber, comprising:
A shell unit, which comprises a first pipe fitting and a second pipe fitting connected with each other in a sliding way, wherein the first pipe fitting and the second pipe fitting enclose an inner space;
A buffer unit, which is arranged in the inner space and comprises a pressing mechanism and a shock absorption mechanism, wherein the shock absorption mechanism comprises a damping component, the damping component is provided with a cylinder and an air bag for containing gas, and the air bag is contained in the cylinder;
When the first pipe fitting and the second pipe fitting are relatively close to each other under the action of an external force, the pressing mechanism pushes against the shock absorbing mechanism, and the air bag is stressed to be compressed and deformed; when the external force is removed, the pressing mechanism does not push against the shock absorption mechanism, and the air bag is expanded and restored to the initial size;
The damping mechanism further comprises a working pipe for containing a liquid, a piston of the pressing mechanism is inserted into the working pipe for pushing the liquid, the damping assembly further comprises a hollow damping pipe and a valve body, the cylinder is connected with the working pipe, the damping pipe is arranged inside the cylinder, the valve body is positioned between the damping pipe and the inner wall of the cylinder so as to form an accommodating space with the inner wall of the cylinder, the valve body is used for allowing the liquid to selectively flow in the accommodating space and the inside of the working pipe, the air bag is contained in the accommodating space, the damping pipe is provided with at least one liquid channel in a penetrating manner, and the accommodating space is communicated with the working pipe through the at least one liquid channel; when the first pipe fitting and the second pipe fitting are relatively close to each other, the piston pushes the liquid to enter the accommodating space from the working pipe so as to compress the air bag; when the first pipe fitting and the second pipe fitting are relatively far away, the air bag is expanded, and the liquid flows back to the working pipe from the accommodating space.
2. The shock absorber as set forth in claim 1, wherein said damping assembly further comprises a gas regulating unit, said gas regulating unit comprises a gas passage and a gas valve, said gas passage is disposed in said cylinder and selectively communicates with the outside and said air bag, said gas valve is disposed in said gas passage for blocking the air bag from communicating with the outside.
3. A shock absorber according to claim 1, wherein said valve body has a first side facing said bladder, a second side facing said working tube, and a plurality of compression passages and a plurality of rebound passages extending axially therethrough, the plurality of compression runners and the plurality of rebound runners are not communicated and staggered, a stacked sheet unit is arranged at the first side part and only covers the plurality of compression runners, a non-return component is arranged at the second side part and only covers the plurality of rebound runners, the non-return component is provided with a first elastic piece, a base and a valve plate, the base sleeve is arranged on the damping tube, the valve plate is movably sleeved on the damping tube, and the first elastic piece is elastically propped between the base and the valve plate, so that the valve plate normally covers the plurality of rebound runners; when the first pipe fitting and the second pipe fitting are relatively close and the liquid reaches a preset flow rate, the liquid pushes the sheet unit to be opened, and the liquid enters the accommodating space through the plurality of compression flow passages and the damping pipe simultaneously; when the first pipe fitting and the second pipe fitting are relatively far away, the liquid pushes the non-return component to open, and the liquid returns to the working pipe through the plurality of rebound runners and the damping pipe.
4. The shock absorber of claim 1, wherein the damping assembly further comprises an oil adjusting unit, the oil adjusting unit comprises an adjusting rod pin and an adjusting opening, the adjusting opening is transversely disposed inside the damping tube, the adjusting rod pin is externally controlled and axially movably inserted into the damping tube, and a top of the adjusting rod pin selectively axially penetrates through the adjusting opening to change a size of a radial opening of the adjusting opening.
5. The shock absorber as set forth in claim 4, wherein said oil adjusting unit further comprises a communicating member and a second elastic member, said communicating member is disposed inside said damping tube, and one end of said communicating member is disposed with said adjusting opening, and the other end is disposed with a connecting opening, said second elastic member elastically abuts between said communicating member and said adjusting rod pin, so that said top portion tends to be away from said adjusting opening.
6. The shock absorber as set forth in claim 5, wherein the oil adjusting unit further comprises a knob and a screw for external rotation, the knob is rotatably disposed on the barrel, the screw is disposed between the adjusting rod pin and the knob, the knob and the screw are in a same rotation relationship, the screw is movably screwed inside the damping tube and located at an end far from the top, and the screw is used for abutting against the adjusting rod pin.
7. The shock absorber as set forth in claim 1, further comprising an exhaust assembly having an exhaust passage extending through said cylinder and a stopper, said exhaust passage communicating with the interior of said first tube, said stopper being disposed in said exhaust passage for blocking communication with the exterior.
8. The shock absorber as set forth in any one of claims 1 to 7, wherein the damping assembly further comprises a support seat positioned on the damping tube, the damping tube passes through the air bag and protrudes out of an open end of the air bag, and the support seat is sleeved on and seals the open end to block the interior of the air bag from communicating with the accommodating space.
9. The shock absorber according to claim 6, wherein the valve body has a first side facing the air bag, a second side facing the working tube, and a plurality of compression passages and a plurality of rebound passages extending axially therethrough, the plurality of compression passages and the plurality of rebound passages being configured in a non-communicating and staggered manner, a stack of thin sheet units being disposed on the first side and covering only the plurality of compression passages, a check member being disposed on the second side and covering only the plurality of rebound passages, the check member having a first elastic member, a base and a valve plate, the base being disposed on the damping tube, the valve plate being movably fitted on the damping tube, the first elastic member being elastically pressed between the base and the valve plate, so that the valve plate normally covers the plurality of rebound passages; when the first pipe fitting and the second pipe fitting are relatively close and the liquid reaches a preset flow rate, the liquid pushes the sheet unit to be opened, and the liquid enters the accommodating space through the plurality of compression flow passages and the damping pipe simultaneously; when the first pipe fitting and the second pipe fitting are relatively far away, the liquid pushes the non-return assembly to open, and the liquid returns to the working pipe through the plurality of rebound runners and the damping pipe simultaneously; the knob is rotatably positioned in the barrel, a convex part axially extends from the knob, a groove containing part is axially and concavely arranged on the screw part, and the convex part is axially and movably limited in the groove containing part; the damping component is also provided with an air regulating unit which comprises an air passage and an air valve, wherein the air passage is arranged in the cylinder body and can be selectively communicated with the outside and the air bag, and the air valve is arranged in the air passage and is used for blocking the air bag from being communicated with the outside; the air valve is provided with a normally closed air inlet part which can be restored and deformed to allow an air guide piece to pass through and is communicated with the air channel; the damping component also comprises a supporting seat positioned on the damping tube, the damping tube penetrates through the air bag and protrudes out of an opening end of the air bag, and the supporting seat is sleeved and sealed on the opening end so as to block the interior of the air bag from communicating with the accommodating space; the supporting seat is provided with a head part, a body part and a ring convex wall, the head part is provided with at least one through hole corresponding to the at least one liquid channel, the body part is radially and tightly wrapped at the opening end, and the ring convex wall extends to the body part in an obliquely expanding way and is attached to the air bag; the number of the at least one liquid channel is two; the gas is nitrogen, and the liquid is oil; the air bag is in a bottle shape and is made of rubber; the damping tube is screwed in the cylinder; the radial dimension of the first tubular member is greater than the radial dimension of the second tubular member; the first pipe fitting is used for connecting a steering structure of a vehicle body, and the second pipe fitting is used for connecting wheels of the vehicle body; the pressing mechanism is positioned on the second pipe, and the shock absorbing mechanism is positioned on the first pipe; the cylinder body is screwed on the first pipe fitting; the working pipe is screwed with the cylinder; the shock absorber further comprises an exhaust assembly, the exhaust assembly is provided with an exhaust channel and a stopper, the exhaust channel is arranged in the cylinder body in a penetrating mode and communicated with the inside of the first pipe fitting, and the stopper is arranged in the exhaust channel and used for blocking the exhaust channel from being communicated with the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710155950.5A CN108626297B (en) | 2017-03-16 | 2017-03-16 | shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710155950.5A CN108626297B (en) | 2017-03-16 | 2017-03-16 | shock absorber |
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| Publication Number | Publication Date |
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| CN108626297A CN108626297A (en) | 2018-10-09 |
| CN108626297B true CN108626297B (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710155950.5A Active CN108626297B (en) | 2017-03-16 | 2017-03-16 | shock absorber |
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| CN (1) | CN108626297B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW399582U (en) * | 1999-04-21 | 2000-07-21 | Kai Fa Industry Co Ltd | Adjustable pneumatic shock absorber |
| JP2001241483A (en) * | 2000-02-29 | 2001-09-07 | Tokico Ltd | Hydraulic shock absorber |
| TWM289135U (en) * | 2005-11-10 | 2006-04-01 | Kai Fa Industry Co Ltd | Pneumatic front fork shock absorber |
| CN202140495U (en) * | 2011-06-10 | 2012-02-08 | 柳州克雷拉减振器有限公司 | Novel monotubular shock absorber |
| CN203641382U (en) * | 2014-01-13 | 2014-06-11 | 浙江亚之星汽车部件有限公司 | Damper with built-in air bag |
| CN204553663U (en) * | 2015-04-15 | 2015-08-12 | 浙江森森汽车零部件有限公司 | A kind of air-bag vibration damper |
| CN205780509U (en) * | 2016-06-30 | 2016-12-07 | 浙江稳达减振器有限公司 | Vehicle vibration absorber |
| CN206617497U (en) * | 2017-03-16 | 2017-11-07 | 李忠家 | Shock absorber |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM390885U (en) * | 2010-06-04 | 2010-10-21 | Sen-Xiang Zhou | Shock absorber |
-
2017
- 2017-03-16 CN CN201710155950.5A patent/CN108626297B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW399582U (en) * | 1999-04-21 | 2000-07-21 | Kai Fa Industry Co Ltd | Adjustable pneumatic shock absorber |
| JP2001241483A (en) * | 2000-02-29 | 2001-09-07 | Tokico Ltd | Hydraulic shock absorber |
| TWM289135U (en) * | 2005-11-10 | 2006-04-01 | Kai Fa Industry Co Ltd | Pneumatic front fork shock absorber |
| CN202140495U (en) * | 2011-06-10 | 2012-02-08 | 柳州克雷拉减振器有限公司 | Novel monotubular shock absorber |
| CN203641382U (en) * | 2014-01-13 | 2014-06-11 | 浙江亚之星汽车部件有限公司 | Damper with built-in air bag |
| CN204553663U (en) * | 2015-04-15 | 2015-08-12 | 浙江森森汽车零部件有限公司 | A kind of air-bag vibration damper |
| CN205780509U (en) * | 2016-06-30 | 2016-12-07 | 浙江稳达减振器有限公司 | Vehicle vibration absorber |
| CN206617497U (en) * | 2017-03-16 | 2017-11-07 | 李忠家 | Shock absorber |
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| Publication number | Publication date |
|---|---|
| CN108626297A (en) | 2018-10-09 |
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Effective date of registration: 20210827 Address after: No. 77, Tongxing West Road, Dongsheng Town, Zhongshan City, Guangdong Province Patentee after: ZHONGSHAN FASTACE PRECISION HARDWARE Co.,Ltd. Address before: Taichung City, Taiwan, China Patentee before: Li Zhongjia |