CN223190907U - A pull-compression damping shock absorber - Google Patents
A pull-compression damping shock absorberInfo
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- CN223190907U CN223190907U CN202422621628.5U CN202422621628U CN223190907U CN 223190907 U CN223190907 U CN 223190907U CN 202422621628 U CN202422621628 U CN 202422621628U CN 223190907 U CN223190907 U CN 223190907U
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Abstract
本实用新型公开了一种抽拽压缩式阻尼减震器，包括减震外壳，所述减震外壳内设置有至少一个密封的储气腔；减震活塞，设置在每个储气腔内，通过所述减震活塞在所述储气腔内形成一个充气减震腔；减震连接杆，其一端连接所述减震活塞，另一端穿过减震外壳并与一第一连接支架连接；当所述减震活塞的顶部空间形成充气减震腔时，此时为抽拽式减震器，当所述减震活塞的底部空间形成充气减震腔时，此时为压缩式减震器。本实用新型可以动作抽拽式减震器，也可以当做压缩式减震器，可以利用压缩空气达到减震的目的，减震大小方便调节，省去减震件的使用，增加使用范围，且本实用新型设置可以调节双向阻尼大小的双阻尼结构，实现减震器在下压以及回缩时能获得不同可变的阻尼效果。
The utility model discloses a pull-and-compression damping shock absorber, comprising a shock-absorbing shell, wherein at least one sealed air storage chamber is provided in the shock-absorbing shell; a shock-absorbing piston is provided in each air storage chamber, and an air-filled shock-absorbing chamber is formed in the air storage chamber by the shock-absorbing piston; a shock-absorbing connecting rod, one end of which is connected to the shock-absorbing piston, and the other end passes through the shock-absorbing shell and is connected to a first connecting bracket; when the air-filled shock-absorbing chamber is formed in the top space of the shock-absorbing piston, it is a pull-and-compression shock absorber, and when the air-filled shock-absorbing chamber is formed in the bottom space of the shock-absorbing piston, it is a compression shock absorber. The utility model can be used as a pull-and-compression shock absorber or a compression shock absorber, and can use compressed air to achieve the purpose of shock absorption. The shock absorption size is easy to adjust, eliminating the use of shock-absorbing parts and increasing the scope of use. In addition, the utility model is provided with a dual-damping structure that can adjust the two-way damping size, so that the shock absorber can obtain different variable damping effects when pressing down and retracting.
Description
Technical Field
The utility model relates to a shock absorber, in particular to a drawing compression type damping shock absorber.
Background
Shock absorbers, particularly vehicle-mounted shock absorbers, are used as an automotive component for buffering impact vibrations to the rider due to the impact of the ground on the vehicle, thereby improving the comfort of the rider. Therefore, shock absorbers are also commonly used in electric vehicles and electric bicycles;
The single-cylinder shock absorber in the prior art mostly comprises a main body and a movable shaft, wherein the main body is provided with a cavity, a piston is arranged in the cavity, and the movable shaft penetrates through the cavity and is connected with the piston;
because the components required by the compression type single-cylinder shock absorber and the drawing type single-cylinder shock absorber are different, the structures and the sizes of the components are possibly incompatible, so that the components cannot be directly exchanged and used, and the complexity of design and manufacturing is increased;
Meanwhile, most of damping intervals of a compression type single-cylinder damper and a drawing type single-cylinder damper in the prior art are of an unadjustable structure, and the lack of the capability of adjusting the damping interval can cause that the single-cylinder damper cannot flexibly adapt to different vibration conditions and requirements;
Meanwhile, two chambers of the double-cylinder shock absorber in the prior art are communicated and arranged through one gas transmission hole, gas transmission is facilitated, a gas plug is arranged in the gas transmission hole to realize sealing, and when the gas plug is damaged, the two chambers are deflated, so that the double-cylinder shock absorber is invalid;
Finally, in order to improve the use effect of the shock absorber, the conventional shock absorber can use the damper, and the damper is used for absorbing the jolt impact force, so that the vehicle can run more stably, but in the prior art, the damping size of the damper is adjustable, but the damping size of the pressing down and the retraction is the same, namely the damping is the same when the pressing down, the retraction is the same damping, and the adjustment of the retraction and the different damping sizes of the pressing down cannot be realized.
Thus, to improve the overall performance of the shock absorber, including responsiveness, comfort, handling, and reduced wear and improved compliance, modern shock absorber designs tend to allow independent adjustment of the damping force during the hold-down and retraction phases.
Disclosure of utility model
In order to solve the problems, the utility model provides a drawing compression type damping shock absorber which can effectively solve a plurality of defects in the prior art.
The utility model is realized by the following technical scheme that the drawing compression type damping shock absorber comprises:
the damping shell is internally provided with at least one sealed air storage cavity;
The damping pistons are arranged in each air storage cavity, and an inflatable damping cavity is formed in each air storage cavity through the damping pistons;
one end of the damping connecting rod is connected with the damping piston, and the other end of the damping connecting rod penetrates through the damping shell and is connected with a first connecting bracket;
When the top space of the damping piston forms an inflatable damping cavity, the damping piston is a drawing type damper, and when the bottom space of the damping piston forms an inflatable damping cavity, the damping piston is a compression type damper;
The damping device comprises at least one damping piece, a first connecting bracket and a second connecting bracket, wherein the at least one damping piece is arranged on one side of the damping shell through a fixing plate;
At least one damping piece is provided with a damping size adjusting mechanism, the damping size of each damping piece is adjusted to be the same or different through the damping size adjusting mechanism, and the damping size of each damping piece when being pressed down and moved up can be adjusted to be the same or different through the damping size adjusting mechanism.
As an optimal technical scheme, the upper end and the lower end of the damping shell, which correspond to the air storage cavity, are respectively provided with an air inflation channel, two sides of the air inflation channels are respectively provided with an opening, an air inflation port is formed at one side of each air inflation channel, an air tap is arranged in each air inflation port in a threaded manner, a blocking port is formed at the other side of each air inflation channel, and a locking sealing plug is arranged in each blocking port in a threaded manner;
The position of the bottom of the blocking opening corresponding to the inflatable shock absorption cavity is provided with an on air guide hole, when the locking sealing plug is not locked, the inflatable shock absorption cavity is communicated with the inflatable channel through the blocking opening, and when the locking sealing plug is locked by threads, the blocking opening and the air guide hole are sealed by the locking sealing plug, so that each inflatable shock absorption cavity is an independent cavity.
As the preferred technical scheme, dustproof sealing plug and lubricated sealing plug are installed to the position that the shock attenuation connecting rod passed shock attenuation shell, dustproof sealing plug and lubricated sealing plug are installed respectively shock attenuation shell's top position, the shock attenuation connecting rod passes dustproof sealing plug and lubricated sealing plug.
As the preferable technical scheme, still be provided with shock attenuation elasticity reinforcement in the inflatable shock attenuation chamber, shock attenuation elasticity reinforcement is spring and/or elastic component, shock attenuation elasticity reinforcement installs between shock attenuation piston and a spacing separation blade for increase the shock attenuation elastic force in inflatable shock attenuation chamber.
As the preferable technical scheme, still be provided with the oil storage hole on the motion face of shock attenuation piston, and the motion face of shock attenuation piston sets up to the toper guide surface, and when shock attenuation piston moved, lubricating oil was through striking entering into the oil storage hole.
As a preferable technical scheme, the damping parts comprise a damping cylinder, a damping rod is movably arranged in the damping cylinder, one end of the damping rod extends into the damping cylinder and is connected with a damping piston, and the other end of the damping rod penetrates through a damping sealing plug on the damping cylinder and is connected with a second connecting bracket after extending to the outside;
the damping size adjusting mechanism is arranged in the damping cylinder, the upper end of the damping piston is provided with a first baffle plate, the lower end of the damping piston is provided with a second baffle plate, the first baffle plate and the second baffle plate are both formed with an inward concave clearance area, and the damping piston has a movable stroke between the first baffle plate and the second baffle plate.
As a preferable technical scheme, the damping piston is provided with an opening cavity, an oil inlet and outlet hole is formed in the bottom surface of the opening cavity, a connecting rod is arranged at the bottom of the damping rod, the first baffle plate and the second baffle plate are fixedly arranged on the connecting rod, the damping piston is movably arranged on the connecting rod, the connecting rod passes through the oil inlet and outlet hole, the diameter of the oil inlet and outlet hole is larger than the outer diameter of the connecting rod, and the outer diameters of the first baffle plate and the second baffle plate are equal to the outer diameter of the damping piston;
the mounting directions of the damping pistons in each damping piece are opposite, when the opening cavity of the damping piston faces downwards, and when the damping piston moves downwards, the damping piston leans against the first baffle plate and is sealed by the first baffle plate to enter and exit the oil hole, and the damping piston has descending damping force; when the damping piston moves upwards, the damping piston leans against the second baffle plate, the oil inlet and outlet holes are communicated, and damping is not generated by the damping piston;
when the opening cavity of the damping piston faces upwards, and the damping piston moves downwards, the damping piston leans against the first baffle plate, the oil inlet and outlet holes are communicated, and damping is not generated by the damping piston; when the damping piston moves upwards, the damping piston leans against the second baffle plate, the second baffle plate seals the oil inlet and outlet holes, and the damping piston has a pull-up damping force;
as a preferable technical solution, the damping size adjusting mechanism includes:
The damping adjusting cylinder is arranged in the damping cylinder and sleeved outside the damping rod and the damping piston, a damping adjusting cavity is formed in the damping adjusting strip, and the damping piston is movably and hermetically arranged in the damping adjusting cavity;
the top of the damping adjusting rod is fixedly connected with the bottom of the damping adjusting cylinder, the bottom of the damping adjusting rod extends out of the damping cylinder and is connected with an adjusting knob, and a ball fixed point mechanism is arranged between the damping adjusting rod and the damping cylinder;
The damping cylinder is characterized in that a plurality of oil channel grooves are formed in the damping cylinder from top to bottom in parallel, a penetrating oil guide hole is formed in the initial end of each oil channel groove, an oil drain groove is longitudinally formed in the damping cylinder, the outer wall surface of the damping cylinder is in sealing contact with the inner wall surface of the damping cylinder, when the damping cylinder is rotated and one end of the oil channel groove is communicated with the oil drain groove, oil in the damping cylinder is extruded through the oil guide hole and enters the oil drain groove through the oil channel groove, when the circumferential distance between the oil guide hole and the oil drain groove is farther, the damping force of the damping piston is larger, and when the circumferential distance between the guide hole and the oil drain groove is closer, the damping force of the damping piston is smaller;
The circumferential distance of the oil channel groove relative to the oil drain groove is adjusted by rotating an adjusting knob outside the damping adjusting rod.
As an optimal technical scheme, a linear bearing is arranged at the top of the damping adjustment cylinder, the linear bearing is provided with at least two oil return ports, and the oil return ports are communicated with the inside of the damping adjustment cylinder;
And a defoaming device is further arranged on the damping rod at the upper end of the linear bearing, a plurality of foam eliminating holes are formed in the defoaming device, and oil discharged from the oil return port enters the defoaming device for storage and defoaming.
As the preferable technical scheme, the ball fixed point mechanism comprises a supporting spring and a ball, a plurality of arc fixed point grooves are formed in the circumferential surface of the damping adjusting rod, one end of the supporting spring is installed in the damping cylinder, and the other end of the supporting spring ejects the ball and enables the ball to be buckled into the arc fixed point grooves.
The utility model provides a drawing compression type damping shock absorber, which comprises the following components:
the damping shell is internally provided with at least one sealed air storage cavity;
The damping pistons are arranged in each air storage cavity, and an inflatable damping cavity is formed in each air storage cavity through the damping pistons;
one end of the damping connecting rod is connected with the damping piston, and the other end of the damping connecting rod penetrates through the damping shell and is connected with a first connecting bracket;
The damping piston is a drawing type damper when the top space of the damping piston forms an inflatable damping cavity, and the damping piston is a compression type damper when the bottom space of the damping piston forms an inflatable damping cavity.
As an optimal technical scheme, the upper end and the lower end of the damping shell, which correspond to the air storage cavity, are respectively provided with an air inflation channel, two sides of the air inflation channels are respectively provided with an opening, an air inflation port is formed at one side of each air inflation channel, an air tap is arranged in each air inflation port in a threaded manner, a blocking port is formed at the other side of each air inflation channel, and a locking sealing plug is arranged in each blocking port in a threaded manner;
The bottom of the blocking opening is provided with conducting air holes corresponding to the inflatable shock absorption cavity, when the locking sealing plug is not locked, the inflatable shock absorption cavity is communicated with the inflatable channel through the blocking opening, and when the locking sealing plug is locked by threads, the blocking opening and the air holes are sealed by the locking sealing plug, so that each inflatable shock absorption cavity is an independent cavity;
The position that shock attenuation connecting rod passed shock attenuation shell installs dustproof sealing plug and lubricated sealing plug, dustproof sealing plug and lubricated sealing plug are installed respectively shock attenuation shell's top position, the shock attenuation connecting rod passes dustproof sealing plug and lubricated sealing plug.
As an optimized technical scheme, the inflatable damping cavity is internally provided with a damping elastic reinforcing piece, the damping elastic reinforcing piece is a spring and/or an elastic piece, and the damping elastic reinforcing piece is arranged between the damping piston and a limiting baffle for increasing the damping elastic force of the inflatable damping cavity;
The motion face of shock attenuation piston is last still to be provided with the oil storage hole, and the motion face of shock attenuation piston sets up to the toper guide surface, and when shock attenuation piston moved, lubricating oil was through striking entering into the oil storage hole.
The utility model has the beneficial effects that the shock absorber adopts an air compression mode to realize the shock absorption purpose, a traditional shock absorption device is omitted, and the shock absorption intensity can be easily changed by simply adjusting the amount of the gas filled, so that the switching between the drawing shock absorption and the compression shock absorption is rapidly realized, the use flexibility is improved, and the cost is greatly reduced because the shock absorption devices of different types are not required to be replaced.
According to the shock absorber, the air tap is adopted for sealing the air charging port, and the locking sealing plug is arranged at the other end of the air passage, so that the air charging shock absorption cavity can be independently and independently used through the locking sealing plug even if the air tap is damaged, the shock absorption failure caused by air leakage is avoided, and the safety and the reliability of the whole system are improved.
The damping piston and the upper baffle plate structure are arranged in the shock absorber, so that the damping size of the downward pressing and the retraction can be independently adjusted, the damping pistons in the two damping cylinders can be oppositely arranged, and the relative positions of the oil channel groove and the oil drain groove can be conveniently adjusted through the external adjusting knob, so that the damping size can be quickly changed, the shock absorber can flexibly cope with different driving scenes through the structure, and more comfortable and driving experience conforming to various road conditions is provided.
The damping adjusting cylinder is provided with the linear bearing at the top, and is provided with at least two oil return ports which are communicated with the inside of the damping adjusting cylinder, when the damping piston is pressed down or retracted, the oil in the damping adjusting cylinder can enter the defoamer through the oil return ports, so that effective oil storage and defoaming are realized, meanwhile, the oil leakage problem of the damper is prevented, the sealing pressure at the damping piston at the top is reduced, the durability and the reliability of the damper are improved, and the maintenance requirement and the potential oil leakage risk are reduced.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the whole structure of embodiment 1 of the present utility model;
FIG. 2 is a schematic diagram showing the overall structure of embodiment 1 of the present utility model;
FIG. 3 is a schematic diagram showing the internal structure of embodiment 1 of the present utility model;
FIG. 4 is a schematic diagram showing the internal structure of embodiment 1 of the present utility model;
FIG. 5 is a schematic longitudinal cross-sectional view of embodiment 1 of the present utility model;
FIG. 6 is a schematic transverse cross-sectional view of embodiment 1 of the present utility model;
FIG. 7 is a schematic view of the outer structure of the damping member of the present utility model;
FIG. 8 is a schematic view of the internal structure of the damping member of the present utility model;
FIG. 9 is a schematic view of the structure of the present utility model with the damper cylinder removed;
FIG. 10 is a schematic view of the bottom structure of FIG. 9 in accordance with the present utility model;
FIG. 11 is a schematic longitudinal cross-sectional view of a damping member of the present utility model;
FIG. 12 is a schematic transverse cross-sectional view of a damping member of the present utility model;
FIG. 13 is a schematic view showing the structure of a single piston pulling type shock absorber in embodiment 2;
FIG. 14 is a schematic view showing the structure of a single piston compression shock absorber in embodiment 3;
FIG. 15 is a schematic view showing the structure of a compression type double shock absorber in embodiment 4;
fig. 16 is a schematic structural view of embodiment 5;
reference numerals illustrate:
1. The damping device comprises a first connecting bracket, a damping shell, 3, an air tap, 4, a damping piece, 5, a second connecting bracket, 6, a fixing plate, 7, an adjusting knob, 8, a locking sealing plug, 9, a damping connecting rod, 10, a dustproof sealing plug, 11, a lubricating sealing plug, 12, a damping elastic reinforcing piece, 13, a damping piston, 14, an inflation channel, 15, an inflation damping cavity, 16, a blocking opening, 17, an air vent, 41, a damping cylinder, 42, a damping rod, 43, a damping piston, 44, a linear bearing, 45, a foam breaker, 46, an oil return opening, 47, an oil path groove, 48, an oil guide hole, 49, a damping adjusting cylinder, 71, an arc-shaped fixed point groove, 72, a damping adjusting rod, 50, a first blocking piece, 51, a damping piston, 52, a second blocking piece, 53, a connecting rod, 54, an opening cavity, 55, an oil inlet and outlet hole, 56, a supporting spring, 57, a ball, 58 and an oil drain groove.
Detailed Description
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.
Example 1:
As shown in fig. 1 and 2, the drawing compression type damping shock absorber adopts a drawing double-chamber shock absorber, and specifically comprises a shock absorption shell 2, wherein two sealed gas storage cavities are arranged in the shock absorption shell 2;
In order to achieve the damping, as shown in fig. 3, the shock absorber further comprises a shock absorbing piston 13, which is arranged in each air storage cavity, and an inflatable shock absorbing cavity 15 is formed in each air storage cavity through the shock absorbing piston 13, as shown in fig. 5, in this embodiment, the shock absorbing piston 13 is arranged at the top of each air storage cavity, and an inflatable shock absorbing cavity 15 is formed in a sealed space at the upper end of the shock absorbing piston 13, so that the shock absorber in this embodiment is a drawing shock absorber, namely has a shock absorbing effect when being drawn upwards;
The damping elastic reinforcing piece 12 can be omitted, namely, only the inflatable damping cavity 15 is inflated with gas to be used as damping, so that the inflated damping cavity 15 can be adjusted to be different in damping size, and the damping can be realized by utilizing inflation and deflation, so that the damping piston 13 is pulled up only by opening the position of an inflation port when the damping piston is required to be adjusted to be a compression damper, then the damping piston is sealed after the air at the bottom is inflated with gas, the inflatable damping cavity 15 can be formed at the bottom, and the damping piston can be quickly switched to be the compression damper.
The damping device also comprises a damping connecting rod 9, one end of the damping connecting rod is connected with the damping piston 13, the other end of the damping connecting rod passes through the damping shell 2 and is connected with a first connecting bracket 1, the first connecting bracket 1 is connected with an external use carrier, and the damping piston 13 and the damping connecting rod 9 are utilized to realize the purpose of damping;
When the top space of the damping piston 13 forms an inflatable damping cavity 15, the damping piston is a drawing type damper, and when the bottom space of the damping piston 13 forms an inflatable damping cavity 15, the damping piston is a compression type damper;
In order to improve the stability of the shock absorber during use and better absorb the influence of external impact force on the vibration of the vehicle, in the embodiment, two damping pieces 4 are used, the two damping pieces 4 are all arranged on one side of the shock absorbing shell 2 through a fixed plate 6, and the top power ends of the two damping pieces 4 are provided with a second connecting bracket 5;
Wherein, as shown in fig. 2 and 7, two damping members 4 are provided with damping size adjusting mechanisms, the damping size of each damping member 4 is adjusted to be the same or different through the damping size adjusting mechanisms, and the damping size of each damping member 4 can be adjusted to be the same or different when being pushed down and moved up through the damping size adjusting mechanisms, specifically, one damping force can be obtained when being pushed down, and different damping forces can be obtained when being retracted, so the utility model must use two damping members 4, and setting of the damping sizes to and fro can be realized.
As shown in fig. 5 and 6, an air charging channel 14 is arranged in the damping shell 2 corresponding to the upper end and the lower end of the air storage cavity, two sides of the air charging channel 14 are opened, an air charging port is formed at one side of the air charging channel 14, an air tap 3 is arranged in the air charging port in a threaded manner, a blocking port 16 is formed at the other side of the air charging channel 14, and a locking sealing plug 8 is arranged in the blocking port 16 in a threaded manner;
The bottom of the blocking opening 16 is provided with conducting air guide holes 17 corresponding to the positions of the inflatable shock absorbing cavities 15, when the locking sealing plug 8 is not locked, the inflatable shock absorbing cavities 15 are communicated with the inflatable channel 14 through the blocking opening 16, when the locking sealing plug 8 is locked by threads, the blocking opening 16 and the air guide holes 17 are sealed by the locking sealing plug 8, so that each inflatable shock absorbing cavity 15 becomes an independent cavity, when the working mode of the damper is in a drawing type or a compression type, only the air faucet 3 and the locking sealing plug 8 are required to be opened, then the two inflatable shock absorbing cavities 15 are inflated by the air charging opening, if the air charging opening is in a drawing type, then the shock absorbing piston 13 is firstly moved to the bottommost part, then the two inflatable shock absorbing cavities 15 are inflated by the air charging opening at the upper end, otherwise, the air faucet 3 is sealed after the inflatable shock absorbing cavities 15 are inflated by the air charging opening at the bottom, and if the air charging opening at the rear end is in a later use, only the locking opening 8 is required to be locked, the blocking opening 16 and the air guide holes 17 are required to be in a drawing type, and the two inflatable shock absorbing cavities 15 can be independently used, namely, the two shock absorbing cavities can be not normally used, and the two shock absorbing cavities can be normally and the shock absorbing cavities can be used when the two shock absorbing cavities are not used independently.
The position that shock attenuation connecting rod 9 passed shock attenuation shell 2 installs dustproof sealing plug 10 and lubricated sealing plug 11, dustproof sealing plug 10 and lubricated sealing plug 11 are installed respectively the top position of shock attenuation shell 2, shock attenuation connecting rod 9 passes dustproof sealing plug 10 and lubricated sealing plug 11, as shown in fig. 3, by dustproof sealing plug 10 sealed top, prevent that things such as dust from entering into the bumper shock absorber in, carry out the lubrication of reciprocating motion in-process to shock attenuation connecting rod 9 by lubricated sealing plug 11, also can regard as sealed dust guard to use simultaneously, double-deck sealed dustproof, sealed effect is better.
As shown in fig. 3 and 4, in order to improve the damping effect, in other cases, we may set a damping elastic reinforcing member 12 in the pneumatic damping cavity 15, where the damping elastic reinforcing member 12 is a spring and/or an elastic member, and the damping elastic reinforcing member 12 is installed between the damping piston 13 and a limiting stop to increase the damping elastic force of the pneumatic damping cavity 15, and may be used alone or may be used alone, that is, may be used alone or may be used together with two elastic rubbers.
Wherein, still be provided with the oil storage hole on the motion face of shock attenuation piston 13, and the motion face of shock attenuation piston 13 sets up to the toper guide surface, when shock attenuation piston 13 motion, lubricating oil enters into the oil storage hole through the striking, utilizes the design of oil storage hole for during the striking, utilize the impact to squeeze into the oil storage hole with fluid, increase whole leakproofness, can promote the shock attenuation effect simultaneously, unnecessary pressure can enter into the dispersion of oil storage downthehole, can utilize the oil storage hole to defoam simultaneously.
As shown in fig. 8-12, the damping members 4 each include a damping cylinder 41, a damping rod 42 is movably disposed in the damping cylinder 41, one end of the damping rod 42 extends into the damping cylinder 41 and is connected with a damping piston 51, and the other end of the damping rod extends through a damping sealing plug on the damping cylinder 41 and extends to the outside and is connected with a second connecting bracket 5;
The damping size adjusting mechanism is arranged in the damping cylinder 41, a first baffle 50 is arranged at the upper end of the damping piston 51, a second baffle 52 is arranged at the lower end of the damping piston 51, the first baffle 50 and the second baffle 52 are both formed with inward concave clearance areas, namely, the first baffle 50 and the second baffle 52 are triangular instead of circular in the embodiment, and the damping piston 51 has a movable stroke between the first baffle 50 and the second baffle 52.
In order to realize different adjustment of damping size in the bidirectional action process, the damping piston 51 is provided with an opening cavity 54, the bottom surface of the opening cavity 54 is provided with an oil inlet and outlet hole 55, the oil inlet and outlet hole 55 is sufficiently contacted by the baffle plates and then sealed, so that the middle of the first baffle plate 50 and the second baffle plate 52 is sealed corresponding to the position of the oil inlet and outlet hole 55, when the damping piston 51 leans against one baffle plate, the sealing of the oil inlet and outlet hole 55 can be realized, the bottom of the damping rod 42 is provided with a connecting rod 53, the first baffle plate 50 and the second baffle plate 52 are fixedly arranged on the connecting rod 53, the damping piston 51 is movably arranged on the connecting rod 53, the connecting rod 53 passes through the oil inlet and outlet hole 55, the aperture of the oil inlet and outlet hole 55 is larger than the outer diameter of the connecting rod 53, and the outer diameters of the first baffle plate 50 and the second baffle plate 52 are equal to the outer diameter of the damping piston 51;
The mounting directions of the damping pistons 51 in each damping piece 4 are opposite, namely, the opening cavity 54 of the damping piston 51 in one damping piece 4 faces upwards, the opening cavity 54 of the other damping piston 51 faces upwards, when the opening cavity 54 of the damping piston 51 faces downwards, the damping piston 51 leans against the first baffle plate 50 when the damping piston 51 moves downwards, and the first baffle plate 50 seals the oil inlet and outlet holes 55, so that the damping piston 51 has descending damping force;
When the opening cavity 54 of the damping piston 51 is upward, the damping piston 51 leans against the first baffle plate 50 when the damping piston 51 moves downward, the oil inlet and outlet holes 55 are communicated, and damping is not generated by the damping piston 51, when the damping piston 51 moves upward, the damping piston 51 leans against the second baffle plate 52, and the oil inlet and outlet holes 55 are sealed by the second baffle plate 52, and the damping piston 51 has a pull-up damping force, by the mode, when one damping piece 4 generates damping, the other damping piece 4 does not generate damping, namely only one damping piece 4 works in the pressing or retracting process, and the other damping piece 4 does not generate damping, so that the damping size of the two damping cylinders 41 is adjusted only through the arrangement, different damping sizes can be obtained when the damping piston 51 is pressed down and retracted, and the aim of bidirectionally forming damping variable is fulfilled;
the damping size adjusting mechanism as shown in fig. 8 includes:
the damping adjusting cylinder 49 is arranged in the damping cylinder 41, sleeved outside the damping rod 42 and the damping piston 51, a damping adjusting cavity is formed in the damping adjusting strip, and the damping piston 51 is movably and hermetically arranged in the damping adjusting cavity;
The top of the damping adjusting rod 72 is fixedly connected with the bottom of the damping adjusting cylinder 49, the bottom of the damping adjusting rod extends out of the damping cylinder 41 and is connected with an adjusting knob 7, and a ball 57 fixed point mechanism is arranged between the damping adjusting rod 72 and the damping cylinder 41 as shown in fig. 11;
The specific damping size adjustment principle is as follows:
the damping adjustment cylinder 49 is externally provided with a plurality of oil channel grooves 47 which are arranged side by side from top to bottom, the initial end of each oil channel groove 47 is provided with a penetrating oil guide hole 48, the damping cylinder 41 is internally provided with an oil drain groove 58 longitudinally, the outer wall surface of the damping adjustment cylinder 49 is in sealing contact with the inner wall surface of the damping cylinder 41, when the damping adjustment cylinder 49 is rotated and one end of the oil channel groove 47 is communicated with the oil drain groove 58, oil in the damping adjustment cylinder 49 is extruded through the oil guide holes 48 and enters the oil drain groove 58 through the oil channel grooves 47, when the circumferential distance between the oil guide holes 48 and the oil drain groove 58 is farther, the damping force of the damping piston 51 is larger, and when the circumferential distance between the guide holes and the oil drain groove 58 is closer, the damping force of the damping piston 51 is smaller, as shown in fig. 12;
By rotating the adjusting knob 7 outside the damping adjusting rod 72 to adjust the circumferential distance of the oil channel 47 relative to the oil drain groove 58, in fig. 12, the distance of the oil guide hole 48 is at the farthest end of the oil drain groove 58, and the rotation direction of the whole damping adjusting cylinder 49 is counterclockwise, in fig. 12, the oil channel 47 does not have a space opposite to the oil drain groove 58, so that the whole damping member 4 is locked and cannot discharge oil, the damping force is maximum, when the damping piston 51 rotates counterclockwise, the oil guide hole 48 rotates counterclockwise and can slowly approach to the oil drain groove 58, at this time, the circumferential distance of the oil channel 47 is shortened, and when the damping piston 51 drives the oil to drain through the oil guide hole 48, the oil enters the oil channel 47, so that the circumferential distance of the oil channel 47 relative to the oil drain groove 58 can be adjusted only by rotating the damping adjusting cylinder 49, the shorter the damping is, and the larger the damping is the bigger.
The top of the damping adjustment cylinder 49 is provided with a linear bearing 44, the up-down guiding capability of the damping rod 42 is increased through the linear bearing 44, the linear bearing 44 is provided with at least two oil return ports 46, the oil return ports 46 are communicated with the inside of the damping adjustment cylinder 49, the oil flows through an oil path groove 47 and then enters an oil drain groove 58 to drain oil, and at the moment, the oil is discharged from the oil return ports 46 of the linear bearing 44 at the top through the oil drain groove 58;
The damping rod 42 at the upper end of the linear bearing 44 is further provided with a defoaming device 45, a plurality of defoaming holes are formed in the defoaming device 45, oil discharged from the oil return port 46 enters the defoaming device 45 for storage and defoaming, and due to the arrangement of the structure, the oil in the oil drainage groove 58 can be decompressed and stored by the aid of the defoaming device 45, bubbles are eliminated, and meanwhile the requirement on tightness can be reduced.
The ball 57 fixed point mechanism comprises a supporting spring 56 and a ball 57, a plurality of arc fixed point grooves 71 are formed in the circumferential surface of the damping adjusting rod 72, one end of the supporting spring 56 is installed in the damping cylinder 41, the ball 57 is ejected out from the other end of the supporting spring and is buckled into the arc fixed point grooves 71, when the damping adjusting rod rotates, the ball 57 is utilized to achieve a fixed point, certain sound is generated when the damping adjusting rod rotates, the prompting effect is achieved, meanwhile, the arc fixed point grooves 71 can also be used as gears, each rotation is the fixed point rotation, the rotation amplitude is fixed, and a user can know the current oil way position more clearly.
Example 2:
As shown in fig. 13, this embodiment is a single piston pulling type shock absorber, and the principle of operation is the same as that of embodiment 1, except that this embodiment is a single piston.
Example 3:
As shown in fig. 14, this embodiment is a single piston compression type shock absorber, and the same principle as that of embodiment 1 is adopted, except that this embodiment is a single piston compression type shock absorber, and only one shock absorbing and inflating chamber is used with the shock absorbing piston 13 at the upper end position.
Example 4:
As shown in fig. 15, this embodiment is a compression type dual shock absorber, and has the same structure and operation principle as those of embodiment 1, except that this embodiment is a compression type, i.e., the shock absorbing piston 13 is located in the upper space, and the bottom is a shock absorbing and inflating chamber.
Example 5:
as shown in fig. 16, a drawing compression type damping shock absorber of the present utility model comprises a shock absorbing shell 2, wherein at least one sealed air storage cavity is arranged in the shock absorbing shell;
A damping piston 13 disposed in each of the gas storage chambers, through which an inflatable damping chamber 15 is formed in the gas storage chamber;
A shock-absorbing connecting rod 9, one end of which is connected with the shock-absorbing piston, and the other end of which passes through the shock-absorbing shell and is connected with a first connecting bracket 1;
The damping piston is a drawing type damper when the top space of the damping piston forms an inflatable damping cavity, and the damping piston is a compression type damper when the bottom space of the damping piston forms an inflatable damping cavity.
The damping device comprises a damping shell, wherein an air inlet and an air outlet are formed in the damping shell, the air inlet is formed in the air inlet, the air outlet is formed in the air inlet, the air inlet is internally threaded, an air tap 3 is arranged in the air inlet, a blocking opening 16 is formed in the air inlet, and a locking sealing plug 8 is arranged in the blocking opening;
The bottom of the blocking opening is provided with conducting air guide holes 17 corresponding to the inflatable shock absorption cavities, when the locking sealing plug is not locked, the inflatable shock absorption cavities are communicated with the inflatable channel through the blocking opening, and when the locking sealing plug is locked by threads, the blocking opening and the air guide holes are sealed by the locking sealing plug, so that each inflatable shock absorption cavity is an independent cavity;
the position that the shock attenuation connecting rod passed shock attenuation shell installs dustproof sealing plug and lubricated sealing plug 10, dustproof sealing plug and lubricated sealing plug are installed respectively shock attenuation shell's top position, the shock attenuation connecting rod passes dustproof sealing plug and lubricated sealing plug.
The inflatable damping cavity is internally provided with a damping elastic reinforcing piece 12 which is a spring and/or an elastic piece, and the damping elastic reinforcing piece is arranged between the damping piston and a limiting baffle for increasing the damping elastic force of the inflatable damping cavity;
The motion face of shock attenuation piston is last still to be provided with the oil storage hole, and the motion face of shock attenuation piston sets up to the toper guide surface, and when shock attenuation piston moved, lubricating oil was through striking entering into the oil storage hole.
In this embodiment, the drag type damping shock absorber of the present utility model can be realized without using a damping member, and the damping principle is the same as that of the above embodiment, and is not described in detail.
The foregoing is merely illustrative of specific embodiments of the present utility model, and the scope of the utility model is not limited thereto, but any changes or substitutions that do not undergo the inventive effort should be construed as falling within the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.
Claims (10)
1. A draw compression damping shock absorber, comprising:
The damping shell (2) is internally provided with at least one sealed air storage cavity;
The damping pistons (13) are arranged in each air storage cavity, and an inflatable damping cavity (15) is formed in each air storage cavity through the damping pistons (13);
One end of the damping connecting rod (9) is connected with the damping piston (13), and the other end of the damping connecting rod passes through the damping shell (2) and is connected with a first connecting bracket (1);
When the top space of the damping piston (13) forms an inflatable damping cavity (15), the damping piston is a drawing type damper, and when the bottom space of the damping piston (13) forms an inflatable damping cavity (15), the damping piston is a compression type damper;
The damping device comprises at least one damping piece (4), wherein the at least one damping piece (4) is arranged on one side of a damping shell (2) through a fixed plate (6), and a second connecting bracket (5) is arranged at the top power end of the at least one damping piece (4);
at least one damping piece (4) is provided with a damping size adjusting mechanism, the damping size of each damping piece (4) is adjusted to be the same or different through the damping size adjusting mechanism, and the damping size of each damping piece (4) when being pressed down and moved up can be adjusted to be the same or different through the damping size adjusting mechanism.
2. The drawing compression type damping shock absorber according to claim 1, wherein an inflation channel (14) is arranged in the shock absorbing shell (2) corresponding to the upper end position and the lower end position of the air storage cavity, two sides of the inflation channel (14) are opened, an inflation port is formed in one side opening of the inflation channel (14), an air tap (3) is arranged in the inflation port in a threaded manner, a blocking port (16) is formed in the other side opening of the inflation channel (14), and a locking sealing plug (8) is arranged in the blocking port (16) in a threaded manner;
The bottom of the blocking opening (16) is provided with conducting air guide holes (17) corresponding to the inflatable shock absorption cavities (15), when the locking sealing plug (8) is not locked, the inflatable shock absorption cavities (15) are communicated with the inflatable channel (14) through the blocking opening (16), and when the locking sealing plug (8) is locked by threads, the blocking opening (16) and the air guide holes (17) are sealed by the locking sealing plug (8), so that each inflatable shock absorption cavity (15) is an independent cavity;
The anti-dust sealing plug (10) and the lubricating sealing plug (11) are arranged at the position of the shock absorption connecting rod (9) penetrating through the shock absorption shell (2), the anti-dust sealing plug (10) and the lubricating sealing plug (11) are respectively arranged at the top position of the shock absorption shell (2), and the shock absorption connecting rod (9) penetrates through the anti-dust sealing plug (10) and the lubricating sealing plug (11);
The pneumatic shock absorption device is characterized in that a shock absorption elastic reinforcing piece (12) is further arranged in the pneumatic shock absorption cavity (15), the shock absorption elastic reinforcing piece (12) is a spring and/or an elastic piece, the shock absorption elastic reinforcing piece (12) is arranged between the shock absorption piston (13) and a limiting baffle for increasing shock absorption elastic force of the pneumatic shock absorption cavity (15), an oil storage hole is further formed in a moving surface of the shock absorption piston (13), the moving surface of the shock absorption piston (13) is a conical guide surface, and lubricating oil enters the oil storage hole through impact when the shock absorption piston (13) moves.
3. The drawing compression type damping shock absorber according to claim 1, wherein the damping pieces (4) comprise damping cylinders (41), a damping rod (42) is movably arranged in each damping cylinder (41), one end of each damping rod (42) extends into each damping cylinder (41) and is connected with a damping piston (51), and the other end of each damping rod penetrates through a damping sealing plug on each damping cylinder (41) and extends to the outside to be connected with a second connecting bracket (5);
The damping size adjustment mechanism is arranged in the damping cylinder (41), a first baffle (50) is arranged at the upper end of the damping piston (51), a second baffle (52) is arranged at the lower end of the damping piston (51), the first baffle (50) and the second baffle (52) are both formed with inward concave empty-avoiding areas, and the damping piston (51) has a movable stroke between the first baffle (50) and the second baffle (52).
4. The drawing compression type damping shock absorber according to claim 3, wherein the damping piston (51) is provided with an opening cavity (54), an oil inlet and outlet hole (55) is formed in the bottom surface of the opening cavity (54), a connecting rod (53) is arranged at the bottom of the damping rod (42), the first baffle plate (50) and the second baffle plate (52) are fixedly arranged on the connecting rod (53), the damping piston (51) is movably arranged on the connecting rod (53), the connecting rod (53) passes through the oil inlet and outlet hole (55), the aperture of the oil inlet and outlet hole (55) is larger than the outer diameter of the connecting rod (53), and the outer diameters of the first baffle plate (50) and the second baffle plate (52) are equal to the outer diameter of the damping piston (51);
when the opening cavity (54) of the damping piston (51) faces downwards, the damping piston (51) leans against the first baffle plate (50) and is sealed by the first baffle plate (50) to form an oil inlet and outlet hole (55), the damping piston (51) has descending damping force, and when the damping piston (51) moves upwards, the damping piston (51) leans against the second baffle plate (52), the oil inlet and outlet hole (55) is conducted, and the damping piston (51) does not generate damping;
When the opening cavity (54) of the damping piston (51) faces upwards, the damping piston (51) leans against the first baffle plate (50) when the damping piston (51) moves downwards, the oil inlet and outlet holes (55) are conducted, damping is not generated by the damping piston (51), when the damping piston (51) moves upwards, the damping piston (51) leans against the second baffle plate (52), the oil inlet and outlet holes (55) are sealed by the second baffle plate (52), and the damping piston (51) has a pull-up damping force.
5. The pull compression type damping vibration absorber according to claim 4, wherein said damping size adjusting mechanism comprises:
The damping adjusting cylinder (49) is arranged in the damping cylinder (41) and sleeved outside the damping rod (42) and the damping piston (51), a damping adjusting cavity is formed in the damping adjusting strip, and the damping piston (51) is movably and hermetically arranged in the damping adjusting cavity;
The top of the damping adjusting rod (72) is fixedly connected with the bottom of the damping adjusting cylinder (49), the bottom of the damping adjusting rod extends out of the damping cylinder (41) and is connected with an adjusting knob (7), and a ball (57) fixed point mechanism is further arranged between the damping adjusting rod (72) and the damping cylinder (41);
The damping device comprises damping adjusting cylinders (49), wherein a plurality of oil channel grooves (47) are formed in the damping adjusting cylinders (49) from top to bottom in parallel, a penetrating oil guide hole (48) is formed in the initial end of each oil channel groove (47), an oil drain groove (58) is formed in the damping cylinder (41) longitudinally, the outer wall surface of each damping adjusting cylinder (49) is in sealing contact with the inner wall surface of each damping cylinder (41), when the damping adjusting cylinders (49) are rotated and one ends of the oil channel grooves (47) are communicated with the oil drain grooves (58), oil in the damping adjusting cylinders (49) is extruded through the oil guide holes (48) and enters the oil drain grooves (58) through the oil channel grooves (47), when the circumferential distance between the oil guide holes (48) and the oil drain grooves (58) is farther, the damping force of each damping piston (51) is larger, and when the circumferential distance between the oil guide holes and the oil drain grooves (58) is closer, the damping force of each damping piston (51) is smaller;
The circumferential distance of the oil channel groove (47) relative to the oil drain groove (58) is adjusted by rotating an adjusting knob (7) outside the damping adjusting rod (72).
6. The pulling compression type damping vibration damper according to claim 5, wherein a linear bearing (44) is mounted on the top of the damping adjustment cylinder (49), the linear bearing (44) is provided with at least two oil return ports (46), and the oil return ports (46) are communicated with the inside of the damping adjustment cylinder (49);
And a defoaming device (45) is further arranged on the damping rod (42) at the upper end of the linear bearing (44), a plurality of foam eliminating holes are formed in the defoaming device (45), and oil discharged from the oil return port (46) enters the defoaming device (45) for storage and defoaming.
7. The drawing compression type damping shock absorber according to claim 5, wherein the ball fixed point mechanism comprises a supporting spring (56) and a ball (57), a plurality of arc fixed point grooves (71) are formed in the circumferential surface of the damping adjusting rod (72), one end of the supporting spring (56) is installed in the damping cylinder (41), and the other end of the supporting spring ejects the ball (57) and enables the ball (57) to be buckled into the arc fixed point grooves (71).
8. A draw compression damping shock absorber, comprising:
The damping shell (2) is internally provided with at least one sealed air storage cavity;
The damping pistons (13) are arranged in each air storage cavity, and an inflatable damping cavity (15) is formed in each air storage cavity through the damping pistons (13);
One end of the damping connecting rod (9) is connected with the damping piston (13), and the other end of the damping connecting rod passes through the damping shell (2) and is connected with a first connecting bracket (1);
The shock absorber is a drawing shock absorber when the top space of the shock absorbing piston (13) forms an inflatable shock absorbing cavity (15), and is a compression shock absorber when the bottom space of the shock absorbing piston (13) forms an inflatable shock absorbing cavity (15).
9. The drawing compression type damping shock absorber according to claim 8, wherein an inflation channel (14) is arranged in the shock absorbing shell (2) corresponding to the upper end position and the lower end position of the air storage cavity, two sides of the inflation channel (14) are opened, an inflation port is formed in one side opening of the inflation channel (14), an air tap (3) is arranged in the inflation port in a threaded manner, a blocking port (16) is formed in the other side opening of the inflation channel (14), and a locking sealing plug (8) is arranged in the blocking port (16) in a threaded manner;
The bottom of the blocking opening (16) is provided with conducting air guide holes (17) corresponding to the inflatable shock absorption cavities (15), when the locking sealing plug (8) is not locked, the inflatable shock absorption cavities (15) are communicated with the inflatable channel (14) through the blocking opening (16), and when the locking sealing plug (8) is locked by threads, the blocking opening (16) and the air guide holes (17) are sealed by the locking sealing plug (8), so that each inflatable shock absorption cavity (15) is an independent cavity;
The position that shock attenuation connecting rod (9) passed shock attenuation shell (2) is installed dustproof sealing plug (10) and is lubricated sealing plug (11), dustproof sealing plug (10) and lubricated sealing plug (11) are installed respectively shock attenuation shell (2) top position, shock attenuation connecting rod (9) pass dustproof sealing plug (10) and lubricated sealing plug (11).
10. The drawing compression type damping shock absorber according to claim 8, wherein a damping elastic reinforcing member (12) is further arranged in the inflatable damping cavity (15), the damping elastic reinforcing member (12) is a spring and/or an elastic member, and the damping elastic reinforcing member (12) is arranged between the damping piston (13) and a limiting baffle for increasing the damping elastic force of the inflatable damping cavity (15);
The motion face of the damping piston (13) is also provided with an oil storage hole, and the motion face of the damping piston (13) is provided with a conical guide face, so that lubricating oil enters the oil storage hole through impact when the damping piston (13) moves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422621628.5U CN223190907U (en) | 2024-10-29 | 2024-10-29 | A pull-compression damping shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422621628.5U CN223190907U (en) | 2024-10-29 | 2024-10-29 | A pull-compression damping shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223190907U true CN223190907U (en) | 2025-08-05 |
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ID=96576812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422621628.5U Active CN223190907U (en) | 2024-10-29 | 2024-10-29 | A pull-compression damping shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223190907U (en) |
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- 2024-10-29 CN CN202422621628.5U patent/CN223190907U/en active Active
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