CN207961383U - A kind of more valve block bidirectional throttle formula daming pistons - Google Patents
A kind of more valve block bidirectional throttle formula daming pistons Download PDFInfo
- Publication number
- CN207961383U CN207961383U CN201820251546.8U CN201820251546U CN207961383U CN 207961383 U CN207961383 U CN 207961383U CN 201820251546 U CN201820251546 U CN 201820251546U CN 207961383 U CN207961383 U CN 207961383U
- Authority
- CN
- China
- Prior art keywords
- valve block
- piston
- piston rod
- restriction portion
- throttling channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
A kind of more valve block bidirectional throttle formula daming pistons, belong to automobile hydraulic cushion technique field.Including piston cylinder（2）, piston cylinder（2）It is inside provided with by piston rod（1）Drive mobile piston only（7）, it is characterised in that：The piston rod（1）Across piston only（7）And it is fixed, in piston rod（1）Outer ring is set at least two panels valve block（4）；In piston rod（1）On be further opened with and valve block（4）Corresponding throttling channel（8）, valve block（4）Respectively with the throttling channel of corresponding side（8）The circulation passage of hydraulic oil is cooperatively formed, the circulation area of circulation passage is along valve block（4）It is sequentially reduced by the direction of hydraulic pressure sliding.In this more valve block bidirectional throttle formula daming piston, by the way that valve block and throttling channel is arranged, the circulation area that circulation passage may be implemented after valve block is pressurized movement is gradually reduced, therefore is avoided piston only and instantaneously significantly moved, and limitation is played to damping effect.
Description
Technical field
A kind of more valve block bidirectional throttle formula daming pistons, belong to automobile hydraulic cushion technique field.
Background technology
Hydraulic shock-absorption is a kind of common damping modes of automotive field.In the output end and ontology point of automobile hydraulic shock-damping device
Shock absorber piston An Zhuan not be typically provided in automobile absorber, when automobile is in driving process on vehicle body and wheel set
In when there is vertical tremor, piston moves back and forth in piston cylinder, valve block mechanism is provided in piston, therefore work as piston reciprocating
When movement, the hydraulic oil positioned at piston both sides can back and forth flow through work with the direction opposite with piston by the flowing hole on piston
Plug, to play cushioning effect.
In the prior art, the movement speed of piston is directly proportional to the vibration amplitude degree of automobile in automobile absorber, i.e.,
The vibration amplitude of automobile is bigger, and the speed of reciprocating motion of the pistons is faster, and the speed for the piston that hydraulic oil flows through is also faster.However vapour
Vehicle will appear the case where vibrations mutation in the process of moving, as wheel touches larger barrier or wheel precepitates into hole
In, when the above situation occurs, become larger rapidly in the spacing short time between vehicle body and wheel set, therefore in this case
Piston still carries out damping adjusting according to the shock conditions of vehicle body, then is easy to will appear the spacing between wheel set and vehicle body
Suddenly change and so that automobile is damaged, in the prior art, by electric-control system may be implemented the pressure short time variation very
The effect that the flow of hydraulic oil is controlled when big, but electric-control system price is costly and control process is complex.
Therefore designing one kind, flow will slowly increase after pressure increases to certain value or flow remains unchanged, the vapour even reduced
Vehicle hydraulic damper becomes current urgent problem to be solved.
Invention content
The technical problems to be solved in the utility model is：It overcomes the deficiencies of the prior art and provide a kind of by the way that valve block is arranged
And throttling channel, the circulation area that circulation passage may be implemented after valve block is pressurized movement is gradually reduced, therefore avoids piston
Ontology instantaneously significantly moves, and more valve block bidirectional throttle formula daming pistons of limitation are played to damping effect.
Technical solution adopted by the utility model to solve its technical problems is：More valve block bidirectional throttle formula dampings are lived
Plug includes that piston only is provided in piston cylinder full of the piston cylinder by hydraulic oil, and piston rod one end connects piston only one end
It is drawn from piston cylinder port, piston rod drives piston only to be moved back and forth in piston cylinder, it is characterised in that：The piston rod
Across piston only and fixation, it is set with and slides axially along piston rod after by hydraulic pressure and glide direction is opposite in piston rod outer ring
At least two panels valve block；
Be further opened with two groups of throttling channels corresponding with valve block respectively on the piston rod, valve block respectively with the throttling channel of corresponding side
The circulation passage of hydraulic oil is cooperatively formed, the circulation area of circulation passage is sequentially reduced along valve block by the direction that hydraulic pressure slides,
It is additionally provided with the elastic component that driving valve block resets after by hydraulic moving in the lumen.
Preferably, the flow-conveying groove of connection piston only both sides is offered on the piston rod or piston only.
Preferably, the elastic component is set in the outer ring of piston rod；
The elastic component is the tower spring of uniform external diameter variation；
Or for coefficient of elasticity is different and multiple springs of head and the tail connection, by spring insert into between-line spacing between adjacent springs；
Or be multiple springs that coefficient of elasticity is different and height is different, multiple springs are arranged successively.
Preferably, the opposite valve block of the glide direction is located at the both sides of piston only, two groups of elastic component difference
Between corresponding side valve block and piston only, the valve block gear limited to valve block is additionally provided on the outside of the valve block of both sides
Block.
Preferably, the opposite valve block of the glide direction is located at the homonymy of piston only, is fixed with bullet on the piston rod
Spring baffle, valve block are located at the both sides of spring stop, and two groups of elastic components are located between corresponding side valve block and spring stop,
The valve block block limited to valve block is additionally provided on the outside of the valve block of both sides.
Preferably, the valve block is located at both sides or the homonymy of piston only, in the opposite valve block of glide direction
Inside is provided with valve block block；The elastic component is respectively provided at both sides the outside of valve block, the outside of two-side elastic part also
It is respectively arranged with and the fixed spring stop of piston rod.
Preferably, throttling channel is opened in along the axial direction of piston rod on the outer wall of piston rod, and throttling channel includes interconnecting
Flow equalization section and restriction portion, wherein flow equalization section are the inside and outside groove for waiting depth, and restriction portion is the domatic groove that depth is sequentially reduced, and is flowed
Section extends inwardly to the inner end of valve block from the outer end of valve block, and restriction portion continues to extend internally from the inner end of flow equalization section, and restriction portion
Ecto-entad depth is sequentially reduced.
Preferably, throttling channel is opened in along the axial direction of piston rod on the outer wall of piston rod, and throttling channel includes interconnecting
Flow equalization section and restriction portion, wherein flow equalization section are the inside and outside groove for waiting depth, and restriction portion is the domatic groove that depth is sequentially reduced, and is flowed
Section extends out to the outer end of valve block from the inner end of valve block, and restriction portion continues to extend outwardly from the outer end of flow equalization section, and restriction portion
Depth is sequentially reduced from inside to outside.
Preferably, throttling channel is opened in along the axial direction of piston rod on the outer wall of piston rod, and throttling channel includes interconnecting
Flow equalization section and restriction portion, restriction portion and flow equalization section are the deep groove such as inside and outside, and restriction portion is multisection type, the conducting number of restriction portion
Amount ecto-entad is reduced with this.
Preferably, throttling channel is opened in along the axial direction of piston rod on the outer wall of piston rod, and throttling channel includes interconnecting
Flow equalization section and restriction portion, restriction portion and flow equalization section are the deep groove such as inside and outside, and restriction portion is multisection type, the conducting quantity of restriction portion
It is reduced from inside to outside with this.
Compared with prior art, advantageous effect possessed by the utility model is：
1, it in this more valve block bidirectional throttle formula daming piston, by the way that valve block and throttling channel is arranged, is moved when valve block is pressurized
The circulation area that circulation passage may be implemented after dynamic is gradually reduced, therefore is avoided piston only and instantaneously significantly moved, to subtracting
Shake effect plays limitation.
2, by the way that overcurrent grass is arranged, the connection of piston only both sides oil pocket is realized.
3, by the way that tower spring is arranged, it can realize that valve block is resetted after valve block is subjected to displacement by hydraulic pressure.
Although 4, throttling channel being opened on the inner wall of valve body with valve block to coordinate and realizing throttling, by throttling channel
It is opened on guiding axis, the difficulty of mechanical processing substantially reduces, and has saved Costco Wholesale to a certain extent.
Description of the drawings
Fig. 1 is more 1 structural schematic diagrams of valve block bidirectional throttle formula daming piston embodiment.
Fig. 2 is more 2 structural schematic diagrams of valve block bidirectional throttle formula daming piston embodiment.
Fig. 3 is more 3 structural schematic diagrams of valve block bidirectional throttle formula daming piston embodiment.
Fig. 4 is more 4 structural schematic diagrams of valve block bidirectional throttle formula daming piston embodiment.
Fig. 5 is more 5 structural schematic diagrams of valve block bidirectional throttle formula daming piston embodiment.
Fig. 6 is more 6 structural schematic diagrams of valve block bidirectional throttle formula daming piston embodiment.
Fig. 7 is more 7 structural schematic diagrams of valve block bidirectional throttle formula daming piston embodiment.
Fig. 8 is more 8 structural schematic diagrams of valve block bidirectional throttle formula daming piston embodiment.
Wherein：1, piston rod 2, piston cylinder 3, valve block block 4, valve block 5, tower spring 6, flow-conveying groove 7, piston only
8, throttling channel 9, the first spring 10, second spring 11, spring insert 12, spring stop.
Specific implementation mode
Fig. 1 is the most preferred embodiment of the utility model, and 1 ~ 8 pair of the utility model is described further below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of more valve block bidirectional throttle formula daming pistons, including piston cylinder 2, piston cylinder 2 are closed at both ends
Cylindrical shape, be internally provided with the plunger shaft axially penetrated through in piston cylinder 2, circle be provided at the center of 2 inner cavity of piston cylinder
The inner wall of the piston only 7 of shape, the outer wall and piston cylinder 2 of piston only 7 fits closely, and piston only 7 is by plunger shaft interval shape
At two oil pockets.
Be provided with piston rod 1 at the center of piston only 7, one end of piston rod 1 from one end port of piston cylinder 2 into
Enter to pass through after plunger shaft piston only 7 and fixed with piston only 7, the junction of piston rod 1 and piston only 7 offer to
A few flow-conveying groove 6, the connection of flow-conveying groove 6 are located at two oil pockets of 7 both sides of piston only, and flow-conveying groove 6 can also be opened in piston
On ontology 7.
It is separately installed with a tower spring 5 in the both sides of piston only 7, the outside of tower spring 5 is also respectively provided with one in both sides
A valve block 4, the tower spring 5 and valve block 4 of 7 both sides of piston only are set in the outer ring of piston rod 1, both sides valve block 4 and piston cylinder 2
There are gaps for inner surface.It is also respectively provided with a valve block block 3 in the outside of two panels valve block 4, by the way that valve block block 3 is arranged
Valve block 4 can be limited, valve block 4 is avoided to be ejected under the elastic force of corresponding column spring 5.Valve block block 3 can be with piston rod 1
The surface of piston rod 1 can also be fixed on by conventional means by being wholely set.
Two groups of throttling channels 8 corresponding with two panels valve block 4 respectively are additionally provided on piston rod 1, throttling channel 8 is along piston rod 1
Axial direction be opened on the outer wall of piston rod 1.Throttling channel 8 includes the flow equalization section and restriction portion interconnected, and wherein flow equalization section is
Inside and outside equal deep groove, restriction portion are the domatic groove that depth is sequentially reduced.Flow equalization section extends inwardly to valve from the outer end of valve block 4
The inner end of piece 4, restriction portion continue to extend internally from the inner end of flow equalization section, and restriction portion ecto-entad depth is sequentially reduced.Valve block 4
The circulation passage that hydraulic pressure oil stream flows through valve block 4 is cooperatively formed with throttling channel 8.Throttling channel 8 is provided with a plurality of, is uniformly opened in piston
The surface of bar 1.
Specific work process and operation principle are as follows：
When in use, piston rod 1 is separately mounted to the vehicle of automobile with piston cylinder 2 to this more valve block bidirectional throttle formula daming piston
At body and wheel set, when automobile shakes, vehicle body and wheel set relatively move, corresponding to make 1 band of piston rod
Piston ontology 7 moves back and forth in plunger shaft.When shaking more slight, movement of the piston only 7 in plunger shaft
More slowly and mobile range it is smaller, at this time fluid can pass through throttling channel 8 flow equalization section and flow-conveying groove 6 realize flowing.
The case where being mutated is shaken when automobile will appear in the process of moving, as wheel touches larger barrier or wheel
When precepitating into hole, piston rod 1 can drive piston only 7 to carry out largely displacement in a short time, be now placed in valve
The hydraulic oil of 4 corresponding side of piece can cause the surface of valve block 4 larger extruding, when the pressure of hydraulic oil is enough to overcome limit tower spring
When 5 elastic force, valve block 4 can be pressed towards the side of piston only 7, since 5 even thickness of tower spring changes, the elastic force of tower spring 5
It gradually changes, therefore the contraction state of tower spring 5 can be gradually tapered up with the variation of hydraulic fluid pressure, valve block 4 is by throttling at this time
The flow equalization section of slot 8 is gradually moved to its restriction portion so that the circulation area of hydraulic oil reduces, and slows down the displacement of piston only 7
Degree.If hydraulic oil is excessive to the extruding force of valve block 4, valve block 4 can be moved to the inner end of throttling channel 8, by the stream of hydraulic oil
Logical area minimizes, and to realize the limitation to damping effect, when the pressure of hydraulic oil is gradually reduced, the meeting of valve block 4 exists
It is gradually resetted under the action of tower spring 5.
Embodiment 2：
As shown in Fig. 2, the present embodiment and embodiment 1 difference lies in：In the present embodiment, it omits tower spring 5 and passes through bullet
The first different spring 9 of property coefficient and second spring 10 are replaced.Spring insert 11, the first bullet are set on piston rod 1
Spring 9 and second spring 10 are located at the both sides of spring insert 11 and are sleeved on the outer ring of piston rod 1 simultaneously, and spring insert 11 can
It slides axially along piston rod 1.When valve block 4 is pressurized it is mobile when, the small spring of elasticity of compression coefficient first, when hydraulic oil pressure by
Continue elasticity of compression coefficient big spring when cumulative big, realizes the effect that valve block 4 is gradually tapered up with the variation of hydraulic fluid pressure
Fruit.
The spring that the present embodiment can also use more coefficient of elasticity different when implementing carries out head and the tail connection and installs successively.
Embodiment 3：
As shown in figure 3, the present embodiment and embodiment 1 difference lies in：In the present embodiment, it omits tower spring 5 and passes through bullet
The first different spring 9 of property coefficient and second spring 10 are replaced.First spring 9 is different with 10 coefficient of elasticity of second spring,
Diameter is different and height is different, and the small spring of diameter is mounted on to the inner ring of the big spring of diameter, the first spring 9 and second spring
10 are sleeved on the outer ring of piston rod 1 simultaneously.When valve block 4 is pressurized movement, a wherein spring is compressed first, when the pressure of hydraulic oil
Contacted with other spring after valve block 4 continues to move to when power gradually increases and continue to compress other spring, realize valve block 4 by
The effect gradually tapered up with the variation of hydraulic fluid pressure.First spring 9 and second spring 10 can also diameter it is identical, cross cap
Dress.
The present embodiment can also use that more coefficient of elasticity are different, diameter is identical or different and height is different when implementing
Spring is set with.
Embodiment 4：
As shown in figure 4, the present embodiment and embodiment 1 difference lies in：In the present embodiment, the restriction portion edge of throttling channel 8
Piston rod 1 is divided axially into multistage, and each section of ecto-entad depth is sequentially reduced and the quantity be connected is sequentially reduced, such as：
Since at port inwardly, restriction portion all in throttling channel 8 all turns in first segment, there is restriction portion quilt all the way in second segment
Block ... and so on.Therefore valve block 4 is in moving process, from the conducting area two of conducting quantity and single throttling channel 8
Aspect realizes throttling simultaneously.
Embodiment 5：
As shown in figure 5, the present embodiment and embodiment 4 difference lies in：In the present embodiment, the restriction portion in throttling channel 8
Equally using it is inside and outside it is equal thick open up mode, and restriction portion is equally along the multistage that is divided axially into of piston rod 1, and per one end by extroversion
The quantity of interior conducting is sequentially reduced, therefore valve block 4 only realizes throttling from conducting quantity in moving process to hydraulic oil.
Embodiment 6：
As shown in fig. 6, the present embodiment and embodiment 1 difference lies in：In the present embodiment, two panels valve block 4 is located at piston
The same side of ontology 7, piston only 7 are preferably placed at one end that piston rod 1 stretches out piston cylinder 2.It is fixed at least on piston rod 1
A piece of spring stop 12, using spring stop 12 to two tower springs 5 into barrier.
Embodiment 7：
As shown in fig. 7, the present embodiment and embodiment 1 difference lies in：In the present embodiment, valve block 4 is located at piston only 7
Both sides and tower spring 5 be located at the outside of valve block 4, specifically：
It is respectively arranged with a piece of spring stop 12 in the both sides of piston only 7, spring stop 12 is fixed on outside piston rod 1
Circle, in both sides, a tower spring 5 is respectively set in the inside of spring stop 12, and in both sides, the inside of tower spring 5 is also respectively provided with a piece of
Valve block 4, tower spring 5 and valve block 4 are set in the outer ring of piston rod 1.It is also respectively provided with a valve block in the inside of two panels valve block 4
Block 3 can limit valve block 4 by the way that valve block block 3 is arranged, avoid valve block 4 under the elastic force of corresponding column spring 5 by bullet
Go out, while valve block 4 can be made to be arranged in the both sides of piston only 7 and the interval of piston only 7 by valve block block 3.
Two groups of throttling channels 8 corresponding with two panels valve block 4 respectively are additionally provided on piston rod 1, throttling channel 8 is along piston rod 1
Axial direction be opened on the outer wall of piston rod 1.Throttling channel 8 includes equally the flow equalization section and restriction portion interconnected, wherein flowing
Section is the inside and outside groove for waiting depth, and restriction portion is the domatic groove that depth is sequentially reduced.Flow equalization section extends outwardly from the inner end of valve block 4
To the outer end of valve block 4, restriction portion continues to extend outwardly from the outer end of flow equalization section, and depth is sequentially reduced restriction portion from inside to outside.
Valve block 4 cooperatively forms the circulation passage that hydraulic pressure oil stream flows through valve block 4 with throttling channel 8.Throttling channel 8 is provided with a plurality of, uniformly opens up
On the surface of piston rod 1.In the present embodiment, the flow equalization section of both sides throttling channel 8 can also continue to along piston rod 1 axially inwards
Side opens up and is connected to, and two throttling channels 8 is made to form the groove of an integral type.
Specific work process and operation principle are as follows：
When in use, piston rod 1 is separately mounted to the vehicle body and vehicle of automobile with piston cylinder 2 to this dispersion adjustable type daming piston
At wheel assembly, when automobile shakes, vehicle body and wheel set relatively move, corresponding to make piston rod 1 with piston
Ontology 7 moves back and forth in plunger shaft.When shaking more slight, movement of the piston only 7 in plunger shaft is more slow
Slow and mobile range is smaller, and fluid can pass through the flow equalization section of throttling channel 8 at this time and flow-conveying groove 6 realizes flowing.
The case where being mutated is shaken when automobile will appear in the process of moving, as wheel touches larger barrier or wheel
When precepitating into hole, piston rod 1 can drive piston only 7 to carry out largely displacement in a short time, be now placed in valve
The hydraulic oil of 4 corresponding side of piece can cause the surface of valve block 4 larger extruding, when the pressure of hydraulic oil is enough to overcome limit tower spring
When 5 elastic force, valve block 4 can be pressed towards the side far from piston only 7, since 5 even thickness of tower spring changes, tower spring 5
Elastic force gradually changes, therefore the contraction state of tower spring 5 can be gradually tapered up with the variation of hydraulic fluid pressure, at this time valve block 4 by
The flow equalization section of throttling channel 8 is gradually moved to its restriction portion so that the circulation area of hydraulic oil reduces, and slows down piston only 7
Degree of displacement.If hydraulic oil is excessive to the extruding force of valve block 4, valve block 4 can be moved to the inner end of throttling channel 8, by hydraulic oil
Circulation area minimize, to realize the limitation to damping effect, when the pressure of hydraulic oil is gradually reduced, valve block 4
It can gradually be resetted under the action of tower spring 5.
Embodiment 8：
As shown in figure 8, the present embodiment and embodiment 7 difference lies in：In the present embodiment, two panels valve block 4 is located at piston
The same side of ontology 7, piston only 7 are preferably placed at one end that piston rod 1 stretches out piston cylinder 2.
The specific embodiment of the application can be the arbitrary combination of the above various embodiments.
The above descriptions are merely preferred embodiments of the present invention, is not to make other forms to the utility model
Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent
The equivalent embodiment of variation.But it is every without departing from the content of the technical scheme of the utility model, the technology according to the utility model is real
Any simple modification, equivalent variations and remodeling, still fall within the guarantor of technical solutions of the utility model made by confrontation above example
Protect range.
Claims (10)
1. a kind of more valve block bidirectional throttle formula daming pistons, include full of the piston cylinder by hydraulic oil（2）, piston cylinder（2）Inside set
It is equipped with piston only（7）, piston rod（1）One end connects piston only（7）One end is from piston cylinder（2）Port is drawn, piston rod（1）
Drive piston only（7）In piston cylinder（2）Interior reciprocating motion, it is characterised in that：The piston rod（1）Across piston only
（7）And it is fixed, in piston rod（1）Outer ring is set with after by hydraulic pressure along piston rod（1）It slides axially and glide direction is opposite extremely
Few two panels valve block（4）；
In piston rod（1）On be further opened with two groups respectively with valve block（4）Corresponding throttling channel（8）, valve block（4）Respectively with corresponding side
Throttling channel（8）The circulation passage of hydraulic oil is cooperatively formed, the circulation area of circulation passage is along valve block（4）The side slided by hydraulic pressure
To and be sequentially reduced, be additionally provided with driving valve block in the lumen（4）The elastic component resetted after by hydraulic moving.
2. more valve block bidirectional throttle formula daming pistons according to claim 1, it is characterised in that：In the piston rod
（1）Or piston only（7）On offer connection piston only（7）The flow-conveying groove of both sides（6）.
3. more valve block bidirectional throttle formula daming pistons according to claim 1, it is characterised in that：The elastic component is arranged
In piston rod（1）Outer ring；
The elastic component is the tower spring of uniform external diameter variation（5）；
Or for coefficient of elasticity is different and multiple springs of head and the tail connection, by spring insert between adjacent springs（11）Into between-line spacing；
Or be multiple springs that coefficient of elasticity is different and height is different, multiple springs are arranged successively.
4. more valve block bidirectional throttle formula daming pistons according to claim 1, it is characterised in that：The glide direction phase
Anti- valve block（4）It is located at piston only（7）Both sides, two groups of elastic components are located at corresponding side valve block（4）With piston sheet
Body（7）Between, in both sides valve block（4）Outside be additionally provided with to valve block（4）The valve block block limited（3）.
5. more valve block bidirectional throttle formula daming pistons according to claim 1, it is characterised in that：The glide direction phase
Anti- valve block（4）Positioned at piston only（7）Homonymy, in piston rod（1）On be fixed with spring stop（12）, valve block（4）Respectively
Positioned at spring stop（12）Both sides, two groups of elastic components are located at corresponding side valve block（4）With spring stop（12）Between, two
Side valve piece（4）Outside be additionally provided with to valve block（4）The valve block block limited（3）.
6. more valve block bidirectional throttle formula daming pistons according to claim 1, it is characterised in that：The valve block（4）Point
It Wei Yu not piston only（7）Both sides or homonymy, in the opposite valve block of glide direction（4）Inside be provided with valve block block（3）；
The elastic component is respectively provided at both sides valve block（4）Outside, be also respectively provided on the outside of two-side elastic part and piston
Bar（1）Fixed spring stop（12）.
7. more valve block bidirectional throttle formula daming pistons according to claim 4 or 5, it is characterised in that：Throttling channel（8）Along living
Stopper rod（1）Axial direction be opened in piston rod（1）Outer wall on, throttling channel（8）Including the flow equalization section and restriction portion interconnected,
Middle flow equalization section is inside and outside equal deep groove, and restriction portion is the domatic groove that depth is sequentially reduced, and flow equalization section is from valve block（4）Outer end
Extend inwardly to valve block（4）Inner end, restriction portion continues to extend internally from the inner end of flow equalization section, and restriction portion ecto-entad depth
It is sequentially reduced.
8. more valve block bidirectional throttle formula daming pistons according to claim 6, it is characterised in that：Throttling channel（8）Along piston
Bar（1）Axial direction be opened in piston rod（1）Outer wall on, throttling channel（8）Including the flow equalization section and restriction portion interconnected, wherein
Flow equalization section is inside and outside equal deep groove, and restriction portion is the domatic groove that depth is sequentially reduced, and flow equalization section is from valve block（4）Inner end to
Extend to valve block outside（4）Outer end, restriction portion continues to extend outwardly from the outer end of flow equalization section, and restriction portion from inside to outside depth according to
Secondary reduction.
9. more valve block bidirectional throttle formula daming pistons according to claim 4 or 5, it is characterised in that：Throttling channel（8）Along living
Stopper rod（1）Axial direction be opened in piston rod（1）Outer wall on, throttling channel（8）Including the flow equalization section and restriction portion interconnected, section
It is the deep groove such as inside and outside to flow section and flow equalization section, and restriction portion is multisection type, and the conducting quantity ecto-entad of restriction portion is reduced with this.
10. more valve block bidirectional throttle formula daming pistons according to claim 6, it is characterised in that：Throttling channel（8）Along piston
Bar（1）Axial direction be opened in piston rod（1）Outer wall on, throttling channel（8）Including the flow equalization section and restriction portion interconnected, throttling
Section and flow equalization section are the inside and outside groove for waiting depth, and restriction portion is multisection type, and the conducting quantity of restriction portion is reduced with this from inside to outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820251546.8U CN207961383U (en) | 2018-02-12 | 2018-02-12 | A kind of more valve block bidirectional throttle formula daming pistons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820251546.8U CN207961383U (en) | 2018-02-12 | 2018-02-12 | A kind of more valve block bidirectional throttle formula daming pistons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207961383U true CN207961383U (en) | 2018-10-12 |
Family
ID=63739331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820251546.8U Expired - Fee Related CN207961383U (en) | 2018-02-12 | 2018-02-12 | A kind of more valve block bidirectional throttle formula daming pistons |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207961383U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578496A (en) * | 2019-09-19 | 2019-12-17 | 梅小军 | low-friction well head oil pumping device |
| WO2020200278A1 (en) * | 2019-04-03 | 2020-10-08 | 郭怀宝 | Hydraulic shock absorption piston having adjustable damping, and hydraulic shock absorber |
-
2018
- 2018-02-12 CN CN201820251546.8U patent/CN207961383U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020200278A1 (en) * | 2019-04-03 | 2020-10-08 | 郭怀宝 | Hydraulic shock absorption piston having adjustable damping, and hydraulic shock absorber |
| CN110578496A (en) * | 2019-09-19 | 2019-12-17 | 梅小军 | low-friction well head oil pumping device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9091319B2 (en) | Shock absorber with hydraulic flow ducts | |
| CN105605141B (en) | The magnetorheological damping shock absorber that a kind of multi-cartridge can cooperate | |
| CN204610668U (en) | A kind of self-adjustment shock absorber of automobile | |
| TWI568947B (en) | Buffers and suspension devices | |
| US9103402B2 (en) | Shock absorber | |
| CN103899704A (en) | Damping-adjustable vibration isolation platform with quasi-zero stiffness | |
| CN207961383U (en) | A kind of more valve block bidirectional throttle formula daming pistons | |
| CN106460994A (en) | Frequency-dependent damping valve arrangement | |
| CN104613036B (en) | A kind of noise reduction overflow valve with balance liquid power and adjustable damping function | |
| CN203702977U (en) | Damping-adjustable vibration isolation platform with quasi-nil rigidity | |
| CN110185734A (en) | A kind of damping adjustable hydraulic daming piston and hydraulic damper based on guiding axis | |
| CN108488288A (en) | A kind of used container of the used adjustable secondary structure of matter coefficient | |
| CN109780117A (en) | It is a kind of to damp adjustable liquid-springing piston and hydraulic buffer | |
| CN103174788B (en) | A kind of hydraulic shock absorber damping regulation structure | |
| CN208221450U (en) | A kind of hydraulic shock-absorption piston and hydraulic damper with throttle valve plate | |
| CN207961378U (en) | A kind of more valve block bidirectional throttle formula damping mechanisms and hydraulic shock-absorption piston | |
| CN207961376U (en) | A kind of hydraulic shock-absorption piston and hydraulic damper with combined sleeve | |
| CN207961385U (en) | A kind of single valve piece bidirectional throttle formula daming piston | |
| CN101571175A (en) | Bottom valve split-type variable damping force hydraulic limit shock absorber | |
| CN208885852U (en) | A kind of single valve piece inner wall throttle type Bidirectional damping mechanism and hydraulic shock-absorption piston | |
| JP2014092181A (en) | Pressure buffering device | |
| CN204476904U (en) | A kind of noise reduction relief valve with equilibrium liquid power and adjustable damping function | |
| CN208221458U (en) | A kind of piston rod throttle type daming piston | |
| CN207470669U (en) | Damper cylinder structure with heat sinking function | |
| CN207961384U (en) | A kind of single valve piece bidirectional throttle formula damping mechanism and hydraulic shock-absorption piston |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181012 Termination date: 20200212 |