CN206368939U - A kind of damping buffer for carrying scraper ring - Google Patents
A kind of damping buffer for carrying scraper ring Download PDFInfo
- Publication number
- CN206368939U CN206368939U CN201621399143.5U CN201621399143U CN206368939U CN 206368939 U CN206368939 U CN 206368939U CN 201621399143 U CN201621399143 U CN 201621399143U CN 206368939 U CN206368939 U CN 206368939U
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- CN
- China
- Prior art keywords
- connecting pole
- piston rod
- sealing ring
- damping buffer
- sponge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Fluid-Damping Devices (AREA)
Abstract
The utility model provides a kind of damping buffer for carrying scraper ring, including oil cylinder, seal assembly, piston component and piston rod, oil cylinder has bottom cavity body, seal assembly is connected in the first opening, piston component is with there is bottom cavity body to be connected, the first end of piston rod is fixedly connected with piston component, second end of piston rod is stretched out from the first opening, wherein, piston component includes connecting pole, hitching post and the first sealing ring, connecting pole is fixedly connected with the first end of piston rod, the first end of connecting pole is provided with first annular projection, hitching post is fixedly connected with the second end of connecting pole, first sealing ring is arranged between first annular raised and hitching post, the outer ring of first sealing ring is interference fitted with cavity wall, the inner ring of first sealing ring is sleeved on connecting pole, damping buffer also includes the sponge component being arranged between seal assembly and connecting pole and crosses scraper ring between connecting pole and the first sealing ring.The damping buffer has the advantages that damping stability is good and reaction force is small.
Description
Technical field
The utility model is related to buffer technology field, specifically, is to be related to a kind of damping buffering for carrying scraper ring
Device.
Background technology
Door or drawer etc. are during opening and closing to two extreme positions often due to inertia is excessive, speed, easily
Hand is crushed, damage is caused to human body, in some places needed peace and quiet, people also produce without hope there is when opening and closing door and window, drawer
Raw noise, it is another should avoid noise occasion be cinema's interior folding seat use.Therefore, often door and window, drawer or
One damping buffer is installed to reduce inertia during closing and slow down its speed in folding seat, prevent from crushing or noise production
It is raw.
Existing damping buffer is a kind of hydraulic damper, and damping buffer includes oil cylinder, the cavity installed in oil cylinder
Interior piston component, be connected with piston component and from cavity to the piston rod overhang, it is sealedly close for being carried out to cavity
Sealing assembly, the spring for setting cavity interior and being abutted with piston component and the air bag that piston component side is fixedly installed.Piston group
The oil circuit with certain path length and certain cross-sectional area, the both sides of oil communication piston component are provided with part.
Because the cumulative volume of cavity is constant, the volume of cavity will be occupied, it is necessary to the receipts of air bag after piston rod activity downwards
Contract the pressure balance gone in holding chamber body, therefore the hydraulic oil below piston component is then reached at air bag by oil circuit, and
Air bag is extruded, and then completes the adjustment of oil pressure process inside oil cylinder.Meanwhile, oil cylinder will be occupied after piston rod slide downward
The volume of cavity, oil volume occupied in cavity diminishes, and the pressure that oil is produced becomes big therewith, is unfavorable for the cunning of piston rod
It is dynamic, also, piston rod more down slides, although damping force is constant, but the restoring force of spring is increase, and piston rod is to downslide
The reaction force born when dynamic is the damping force sum of spring restoring force and oil.In addition, when the then air bag that stretches into of piston rod exists
When being recovered after being compressed, change in shape excessive velocities so that piston rod damping action when resetting is unstable.
In addition, when door or drawer are opened into larger position, people are not intended to damping buffer and produce excessive anti-work
Firmly, so that door or drawer can be rapidly turned on to extreme position.But, the reaction force that now piston rod is born constantly increases
Greatly, people generally require expense could be opened into extreme position compared with great strength by door or drawer, and the use given people is brought greatly
Inconvenience.
The content of the invention
In order to solve the above problems, main purpose of the present utility model is to provide that a kind of damping stability is good and reaction force
The small damping buffer for carrying scraper ring.
In order to realize main purpose of the present utility model, the utility model provides a kind of damping buffering for carrying scraper ring
Device, including oil cylinder, seal assembly, piston component and piston rod, oil cylinder, which has one, bottom cavity body, the first opening for having bottom cavity body
Positioned at the end of oil cylinder, seal assembly is fixedly connected in the first opening, and axial direction of the piston component along oil cylinder is with there is bottom cavity body
Cavity wall is slidably connected, and the first end of piston rod is fixedly connected with piston component, and the second end of piston rod passes axially through close
Sealing assembly stretches out from the first opening, wherein, piston component includes connecting pole, hitching post and the first sealing ring, connecting pole and piston rod
First end be fixedly connected, the first end of connecting pole is circumferentially provided with first annular projection, hitching post and company along have a bottom cavity body
The second end for connecing post is fixedly connected, and the first sealing ring is arranged between first annular raised and hitching post, outside the first sealing ring
Circle is interference fitted with cavity wall, and the inner ring of the first sealing ring is sleeved on connecting pole, and damping buffer also includes sponge component and mistake
Scraper ring, sponge component is fixedly mounted between seal assembly and connecting pole, cross scraper ring be arranged on connecting pole and the first sealing ring it
Between.
Therefore, when piston rod promotes piston component to be moved down to the bottom for having bottom cavity body, due to the first sealing
The cavity wall enclosed and have bottom cavity body is interference fitted so that the oil circuit flowing that the oil in cavity can only be set by damping buffer
And enter sponge component, and then play a part of damping.When piston rod continues down, the volume for having bottom cavity body is compressed, this
When there is the oil in bottom cavity body to extrude sponge component, make sponge component in confined state.And the anti-work of sponge component
Firmly very little so that the reaction very little born when piston rod slide downward, also, the bounce-back of sponge component is slower, energy
Enough so that piston rod damping action when resetting is stable.Further, since the first sealing ring is made up of elastomeric material, by setting
Scraper ring can prevent the first sealing ring when moving down, and the portion of the first sealing ring is extruded into groove, and groove is made
Into blocking so that damping buffer can not normal work.
Further scheme is that first annular projection is circumferentially arranged at least one opening, is open axially through the
One annular protrusion, it is first annular raised raised to be radially arranged fluted, groove and an open communication along first annular.
Therefore, multiple openings are set in first annular projection, groove in first annular projection and one of them
Open communication so that when piston rod is moved downward, damping buffer can produce larger resistance, and so that piston rod exists
During reset, the backflow of oil can be carried out simultaneously by multiple openings, reduce reaction force when piston rod resets.
Further scheme is to cross between scraper ring and connecting pole to form the first flow channel for liquids, and the first sealing ring is with being connected
Second liquid runner is formed between post, is interconnected between the first flow channel for liquids, second liquid runner and groove.
Therefore, the resistance that flow channel for liquids can provide stream and control damping buffer to produce for the oil in oil cylinder
The size of Buddhist nun.
Further scheme is that multiple grooves are provided with hitching post, and multiple grooves are circumferentially distributed.
Therefore, set multiple grooves to provide the bigger flowing space for in-oil cylinder oil on hitching post, it is to avoid
Oil flowing is by many retardances.
Further scheme is that seal assembly includes sealing-plug and the second sealing ring, and sealing-plug is fixedly mounted on first
In opening, the second sealing ring is abutted against between sealing-plug and sponge component.
Therefore, sealing-plug is used to seal oil cylinder, prevents oily from oil cylinder internal leakage, the second sealing ring be used for into
One step is sealed to piston rod and closure, it is to avoid oil is leaked out outside oil cylinder from connection gap.
Further scheme is that sponge component includes sponge framework and cavernous body, and sponge framework is with there is bottom cavity body to fix
Connection, the bottom of sponge framework is provided with through hole, and the 3rd flow channel for liquids is formed between through hole and piston rod, and cavernous body is arranged on sea
In continuous framework.
Therefore, installing space is provided for cavernous body by sponge framework, and through hole is set in base of frame so that
Oil can be flowed into above sponge framework, and then cavernous body is compressed, it is ensured that the damping stability of damping buffer.
Further scheme, which is that the first open direction has, is provided with blind slot in bottom cavity body, the second of sponge framework is open
Along it is first annular it is raised be radially provided with the second annular protrusion, the second annular protrusion is abutted with blind slot.
Therefore, blind slot and the second annular protrusion is set on sponge framework having to set in bottom cavity body, can prevent
Oil pressure above sponge framework promotes sponge framework to the bottom for having bottom cavity body, and then ensures the resistance of the generation of damping buffer
The stability of Buddhist nun.
Brief description of the drawings
Fig. 1 is the structure chart of the utility model damping buffer embodiment.
Fig. 2 is the sectional view of the utility model damping buffer embodiment.
Fig. 3 is the structure chart after the clipped component of the utility model damping buffer embodiment.
Fig. 4 is the structure chart of the connecting pole of the utility model damping buffer embodiment.
Fig. 5 is the structure chart under another visual angle of the connecting pole of the utility model damping buffer embodiment.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment
Referring to figs. 1 to Fig. 5, damping buffer 1 includes oil cylinder 2, seal assembly 3, piston component 4, piston rod 5, sponge group
Part 6 and excessively scraper ring 7.
The middle part of oil cylinder 2, which has one, bottom cavity body 21, has bottom cavity body 21 to be used to deposit damping oil, also, have bottom cavity body
21 have an opening 211, and opening 211 is located at the end of oil cylinder 2.
Seal assembly 3 is fixedly connected in opening 211, specifically, and seal assembly 3 includes sealing-plug 31 and sealing ring 32,
Sealing-plug 31 is fixedly mounted in opening 211, and sealing-plug 31 is used to seal the opening 211 for having bottom cavity body 21, has prevented
Damping oil leakage in bottom cavity body 21.Sealing ring 32 is abutted against between sealing-plug 31 and sponge component 6, also, sealing ring 32
Outer ring with there is the cavity wall of bottom cavity body 21 to be interference fitted is connected, the inner ring of sealing ring 32 and the body interference fit ground of piston rod 5
Connection.Sealing ring 32 is used to prevent the damping oil in bottom cavity body 21 from passing through the gap between piston rod 5 and sealing-plug 31, piston
The phenomenon that the gap between gap and seal assembly 3 and oil cylinder 2 between bar 5 and sealing ring 32 is leaked occurs.
Axial direction of the piston component 4 along oil cylinder 2 is slidably connected with the cavity wall for having bottom cavity body 21, specifically, piston component 4
Including connecting pole 41, hitching post 42 and sealing ring 43.Connecting pole 41 is fixedly connected with the first end 51 of piston rod 5, and the of piston rod 5
Two ends 52 are stretched out along sealing-plug 31, the sealing ring 32 axially across seal assembly 3 of oil cylinder 2 from opening 211, also, piston rod 5
The second end 52 be force side, for being contacted with exterior object.
In addition, the first end of connecting pole 41 is circumferentially provided with annular protrusion 411, annular protrusion along have a bottom cavity body 21
411 are circumferentially provided with least one opening along this, and opening 412 is set along the ground of annular protrusion 411 that axially penetrates through of oil cylinder 2.Specifically
Ground says, the quantity of opening is three, and be respectively open 412, opening 414 and opening 415, and is open and 412, opening 414 and opens
Mouth 414 is uniformly distributed along the circumference.Wherein, groove 413 is additionally provided with along the radial direction of annular protrusion 411 on annular protrusion 411, it is recessed
The quantity of groove 413 is one, and groove 412 is connected with opening 413.
Hitching post 42 is fixedly connected with the second end of connecting pole 41, and hitching post 42 is provided with multiple grooves 421, multiple grooves
421 are uniformly distributed along the circumference for having bottom cavity body 21.Multiple grooves 421 are set on hitching post 42 so that when piston rod 5 promotes piston
Component 4 is along oil cylinder 2 when moving axially downwards close to the bottom for having bottom cavity body 21, and damping oil can be by hitching post 42 with there is bottom cavity
Gap and groove 421 between the cavity wall of body 21 are flowed, and the bigger flowing space are provided for damping oil, it is to avoid damping oil
Runner is by many retardances.
Sealing ring 43 is arranged between annular protrusion 411 and hitching post 42, the outer ring of sealing ring 43 and the chamber for having bottom cavity body 21
Wall interference fit connection, the inner ring of sealing ring 43 is sleeved on the middle part of connecting pole 41, and the diameter at the middle part of connecting pole 41 is more than
The diameter of the second end of connecting pole 41 and less than connecting pole 41 first end diameter.
Scraper ring 7 is crossed between the annular protrusion 411 and sealing ring 43 of connecting pole 41, because sealing ring 43 is by elastic material
Material is made, and crosses scraper ring 7 and is made up of hard material, can by setting scraper ring 7 between annular protrusion 411 and sealing ring 43
Prevent that the portion of sealing ring 43 is extruded into groove 413 to recessed when piston rod 5 promotes piston component 4 to move down
Groove 413 causes obstruction, it is ensured that damping buffer 1 being capable of normal work.
Sponge component 6 is fixedly mounted on seal assembly 3 and connecting pole 41, and sponge component 6 includes sponge framework 61 and installed
Cavernous body 62 in sponge framework 61, sponge framework 61 is with there is bottom cavity body 21 to be fixedly connected, and the bottom of sponge framework 61 is set
There is through hole 611, piston rod 5 forms flow channel for liquids 83 through through hole 611 and through hole 611 and piston rod 5.
In addition, the inner ring for crossing scraper ring 7 is sleeved on the middle part of connecting pole 41, and cross the inner ring and connecting pole 41 of scraper ring 7
Middle part between formed flow channel for liquids 81.And flow channel for liquids 82 is formed between the inner ring of sealing ring 43 and the middle part of connecting pole 41.
Wherein, it is interconnected between flow channel for liquids 81, flow channel for liquids 82 and flow channel for liquids 83, to form the flow circuits of damping oil.
Towards having, bottom cavity body 21 is interior to have blind slot 212, the open edge of sponge framework 61 to opening 211 along the axially arranged of oil cylinder 2
Annular protrusion 411 is radially provided with annular protrusion 612, and annular protrusion 612 is abutted with blind slot 212, make sponge framework 61
It has been fixedly mounted on bottom cavity body 21.
When the second end 52 of piston rod 5 is acted on by external force, piston rod 5 promotes piston component 4 to move down and close
There is the bottom of bottom cavity body 21, now, because sealing ring 43 is with there is the cavity wall of bottom cavity body 21 to be interference fitted so that damping oil can only lead to
Flow channel for liquids 81, flow channel for liquids 82 and flow channel for liquids 83 is crossed to flow to the upstream of oil cylinder 2.
Piston component 4 is when moving down, because annular protrusion 411, the sealing ring 43 of crossing scraper ring 7 and connecting pole 41 are supported
Connect so that damping oil can not enter opening 414 and opening 415 by exterior slots, can only pass through flow channel for liquids 81 and liquid flow
Road 82 enters groove, and then enters the opening 412 connected with groove 413 by groove 413.
When piston component 4 continues to move down, space is produced between connecting pole 41 and sponge framework 61, damping oil enters
Sponge component 6 is carried out by flow channel for liquids 83 behind the space, and then damping oil is continued the upstream flowing to oil cylinder 2, so as to produce
Raw damping action.
When piston rod 5 promotes piston component 4 to move down, because piston rod 5 enters the volume increase for having bottom cavity body 21,
Allow the volume reducing for thering is bottom cavity body 21 to accommodate damping oil, now, damping oil can be compressed to cavernous body 62, pass through sea
The volume that continuous body 62 is compressed supplements the volume that damping oil is occupied, and then ensures the stability of the damping of damping buffer 1.
Further, since being not provided with spring in the damping buffer 1 so that piston rod 5 is when moving down without being subjected to
The restoring force of spring, it is effective to reduce the reaction force that piston rod 5 is born.But, the damping buffer 1 is not provided with bullet
Spring so that damping buffer 1 needs to exert a force to piston rod 5 by external force when being recovered, and is answered piston rod 5
Position.
When piston rod 5 is resetted, damping oil is back to sponge framework 61 and the institute of connecting pole 41 by flow channel for liquids 83
The space of formation, further, since piston component 4 is moved upwards so that sealing ring 43 is connected to hitching post 42 and crossed between scraper ring 7,
And then to form space between the annular protrusion 411 of scraper ring 7 and connecting pole 41.Now, damping oil by opening 412, open
Mouth 414 and opening 415 are back to the lower section of annular protrusion 411 from the top of annular protrusion 411 simultaneously, and then pass through flow channel for liquids
81 and flow channel for liquids 82 be back to the downstream of oil cylinder 2, complete the reset of piston rod 5.It can be seen that, when piston rod 5 is resetted, by
In being provided with multiple openings on annular protrusion 411 so that piston rod 5 can simultaneously be entered when being resetted by multiple openings
The backflow of row damping oil, and then reduce the reaction force born when piston rod 5 resets.
In summary, the damping buffer that the utility model is provided has damping stability good and that reaction force is small is excellent
Point.
Finally it is emphasized that the foregoing is only preferred embodiment of the present utility model, this reality is not limited to
With new, for those skilled in the art, the utility model can have various change and change, all in the utility model
Spirit and principle within, any modification, equivalent substitution and improvements done etc. should be included in protection model of the present utility model
Within enclosing.
Claims (7)
1. a kind of damping buffer for carrying scraper ring, including
There is oil cylinder, the oil cylinder one to have bottom cavity body, and first opening for having bottom cavity body is located at the end of the oil cylinder；
Seal assembly, the seal assembly is fixedly connected in first opening；
Piston component, axial direction of the piston component along the oil cylinder is slidably connected with the cavity wall for having bottom cavity body；
Piston rod, the first end of the piston rod is fixedly connected with the piston component, and the second end of the piston rod is along described
Stretched out axially across the seal assembly from the described first opening；
It is characterized in that：
The piston component includes
Connecting pole, the connecting pole is fixedly connected with the first end of the piston rod, and the first end of the connecting pole is described in
Have bottom cavity body is circumferentially provided with first annular projection；
Hitching post, the hitching post is fixedly connected with the second end of the connecting pole；
First sealing ring, first sealing ring is arranged between the first annular raised and described hitching post, and described first is close
The outer ring of seal is interference fitted with the cavity wall, and the inner ring of first sealing ring is sleeved on the connecting pole；
The damping buffer also include sponge component and cross scraper ring, the sponge component be fixedly mounted on the seal assembly and
Between the connecting pole, the scraper ring of crossing is arranged between the connecting pole and first sealing ring.
2. damping buffer according to claim 1, it is characterised in that：
It is described it is first annular it is raised be circumferentially provided with least one opening along described, the opening axially penetrates through described the along described
One annular protrusion；
It is described first annular raised first annular raised to be radially arranged fluted, the groove and an opening along described
Connection.
3. damping buffer according to claim 2, it is characterised in that：
Described cross between scraper ring and the connecting pole forms the first flow channel for liquids, between first sealing ring and the connecting pole
Second liquid runner is formed, is interconnected between first flow channel for liquids, the second liquid runner and the groove.
4. damping buffer according to claim 1, it is characterised in that：
It is provided with multiple grooves on the hitching post, multiple grooves are along described circumferentially distributed.
5. the damping buffer according to any one of Claims 1-4, it is characterised in that：
The seal assembly includes：
Sealing-plug, the sealing-plug is fixedly mounted in first opening；
Second sealing ring, second sealing ring is abutted against between the sealing-plug and the sponge component.
6. damping buffer according to claim 5, it is characterised in that：
The sponge component includes：
Sponge framework, the sponge framework has bottom cavity body to be fixedly connected with described, and the frame bottom of the sponge frame is provided with through hole,
The 3rd flow channel for liquids is formed between the through hole and the piston rod；
Cavernous body, the cavernous body is arranged in the sponge framework.
7. damping buffer according to claim 6, it is characterised in that：
Have described in described first open direction in bottom cavity body and be provided with blind slot；
The sponge framework second it is open along it is described it is first annular it is raised be radially provided with the second annular protrusion, it is described
Second annular protrusion is abutted with the blind slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621399143.5U CN206368939U (en) | 2016-12-19 | 2016-12-19 | A kind of damping buffer for carrying scraper ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621399143.5U CN206368939U (en) | 2016-12-19 | 2016-12-19 | A kind of damping buffer for carrying scraper ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206368939U true CN206368939U (en) | 2017-08-01 |
Family
ID=59393726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621399143.5U Expired - Fee Related CN206368939U (en) | 2016-12-19 | 2016-12-19 | A kind of damping buffer for carrying scraper ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206368939U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111788408A (en) * | 2018-03-15 | 2020-10-16 | Ｋｙｂ株式会社 | Shock absorber |
-
2016
- 2016-12-19 CN CN201621399143.5U patent/CN206368939U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111788408A (en) * | 2018-03-15 | 2020-10-16 | Ｋｙｂ株式会社 | Shock absorber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170801 Termination date: 20211219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |