CN202392030U - Heavy-damping precision microporus hydraulic damper - Google Patents
Heavy-damping precision microporus hydraulic damper Download PDFInfo
- Publication number
- CN202392030U CN202392030U CN2012200024322U CN201220002432U CN202392030U CN 202392030 U CN202392030 U CN 202392030U CN 2012200024322 U CN2012200024322 U CN 2012200024322U CN 201220002432 U CN201220002432 U CN 201220002432U CN 202392030 U CN202392030 U CN 202392030U
- Authority
- CN
- China
- Prior art keywords
- piston
- damping
- liquid
- hole
- via hole
- 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
Images
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model relates to a heavy-damping precision microporus hydraulic damper which comprises a piston cylinder (1), a piston (3) and a piston shaft (4), wherein the piston (3) is coaxially sleeved on a diameter-reduced shaft head of the piston shaft, and is riveted and fixed through a gasket (6); an inner cavity of the piston cylinder is filled with a damping liquid; the piston (3) is provided with at least one bidirectional damping liquid through hole (3-2) and at least one unidirectional damping liquid through hole (3-3). The heavy-damping precision microporus hydraulic damper is characterized in that the contact surface of the piston (3) and the gasket (6) is provided with a damping liquid rotation flow guide groove; the damping liquid rotation flow guide groove is equivalent to an effect that a secondary damping stroke is added on a primary damping stroke of the bidirectional damping liquid through hole, and the damping stroke can be doubled to the greatest extend, thus the damping intensity is increased. The measure can be realized just by arranging a slot on the front end surface of the piston, the heavy-damping precision microporus hydraulic damper is simple in structure, is easy to realize, and is low in cost.
Description
Technical field
The utility model relates to a kind of micropore hydraulic damper, the accurate micropore hydraulic damper of especially a kind of heavy damping.It is mainly used in door, the window butt of top-grade furniture, should precision micropore hydraulic damper through on hinge, installing, and make door, window when closing, receive damping, thereby reduce the noise when closing.
Background technique
In prior art; The applicant is at a kind of " the accurate micropore hydraulic damper " of first to file; The patent No.: ZL200920034523.2; This patent mainly comprise a piston, piston cylinder, with the piston shaft that piston connects firmly, in described piston cylinder chamber, be filled with damp liquid, on piston, be provided with bidirectional damper liquid via hole and unidirectional damping liquid via hole.When pulling out piston shaft; Unidirectional damping liquid via hole is closed by the piston packing shutoff, and damp liquid can only flow to ante-chamber from the piston cylinder back cavity through bidirectional damper liquid via hole, forms bigger stroke damping; This damping is mainly used in slowly closes door, window, reduces noise; When pushing piston shaft, the unidirectional damping via hole is opened, and damp liquid flows to back cavity through unidirectional damping liquid via hole from the piston cylinder ante-chamber, and this damping is very little, is mainly used in and opens door, window effortlessly.This accurate micropore hydraulic damper mainly is to form bigger damping by being located at bidirectional damper liquid via hole fine on the piston, and in principle, the aperture of bidirectional damper liquid via hole is more little, damping is just big more; But because the volume of this hydraulic damper is small, the aperture of its damp liquid via hole is also very little; Be generally about 0.01～0.3mm, if increase damping through reducing the aperture more on this basis, its difficulty of processing is very big; Be difficult to realize, both enabled to realize that cost also can be very high.Therefore, this precision micropore hydraulic damper is difficult to realize increasing damping through reducing the aperture again.
The model utility content
The purpose of the utility model is that a kind of simple in structure, accurate micropore hydraulic damper of the easy heavy damping of realization is provided on the basis of existing accurate micropore hydraulic damper structure.
For realizing above-mentioned purpose, the technological scheme of the utility model is following:
It comprises a piston cylinder, and the front end of this piston cylinder is a closed shape or to be provided with sealing stifled, and its tail end is provided with spindle guide to ring assembly; In described piston cylinder, be provided with a piston; A piston shaft stretches in the described piston cylinder to ring assembly through described spindle guide, and the head of this piston shaft is provided with a undergauge spindle nose, and described piston is coaxial to be enclosed within on the undergauge spindle nose of piston shaft; And through a pad riveted fixing; On the peripheral wall of said piston, have a circular groove, an O RunddichtringO is installed in this circular groove, and described circular groove and said O RunddichtringO are loose fit; In the inner chamber of said piston cylinder, be filled with damp liquid; On described piston, be provided with at least one bidirectional damper liquid via hole and at least one unidirectional damping liquid via hole, described bidirectional damper via hole is an axial hole, and described unidirectional damping liquid via hole is axial half through hole; And the closed end of this axial half through hole communicates with circular groove, and its improvements are: on the surface of contact of said piston and pad, be provided with damp liquid revolution guiding gutter.
The further improved technological scheme of the utility model is following:
Described damp liquid revolution guiding gutter can be ring guiding gutter, involute shape guiding gutter, quincunx guiding gutter or polygonal guiding gutter.
Can find out through technique scheme; The utility model is provided with damp liquid revolution guiding gutter on the surface of contact of piston and riveted joint pad; This damp liquid revolution guiding gutter is equivalent on a damping stroke of bidirectional damper liquid via hole, increase again a secondary damping stroke, like this, and when heavy damping (promptly pulling out piston shaft); Damp liquid passes through the secondary damping stroke of damp liquid turning slot earlier again through a damping stroke of bidirectional damper liquid via hole; And then getting into the piston cylinder ante-chamber, maximum can prolong nearly about one times damping stroke, thereby can increase damping intensity greatly.This measure only needs on the piston nose face, slot and can realize, simple in structure, realize easy, cost is low.
Description of drawings
Fig. 1 is the overall structure sectional view of the utility model.
Fig. 2 is the piston structure sectional view.
Fig. 3 is one of A-A end view drawing of Fig. 2.
Fig. 4 be Fig. 2 the A-A end view drawing two.
Fig. 5 be Fig. 2 the A-A end view drawing three.
Fig. 6 be Fig. 2 the A-A end view drawing four.
Embodiment
Referring to Fig. 1,2, this damper comprises a piston cylinder (1), and the front end of this piston cylinder is a closed shape or to be provided with sealing stifled; And be provided with a mounting hole (1-1) at this front end; The tail end of this piston cylinder is provided with spindle guide to ring assembly (2), in described piston cylinder (1), is provided with a piston (3), and a piston shaft (4) stretches in the described piston cylinder to ring assembly (2) through described spindle guide; The afterbody of this piston shaft is provided with a mounting hole (4-1); Its head is provided with a undergauge spindle nose (4-2), and described piston (3) is through on the coaxial undergauge spindle nose that is enclosed within piston shaft of its central shaft hole, and through a pad (6) riveted fixing; On the peripheral wall of said piston (3), have a circular groove (3-1); An O RunddichtringO (5) is installed in this circular groove; Described circular groove (3-1) is loose fit with O RunddichtringO (5); One of effect of said O RunddichtringO (5) is to seal forming between piston and the piston cylinder, and two of effect is that unidirectional damping liquid via hole is played on-off action; In the inner chamber of said piston cylinder (1), be filled with damp liquid; On described piston (3), be provided with at least one bidirectional damper liquid via hole (3-2) and at least one unidirectional damping liquid via hole (3-3); Described bidirectional damper via hole (3-2) is an axial hole; Described unidirectional damping liquid via hole (3-3) is axial half through hole, and the closed end of this axial half through hole communicates with circular groove (3-1).
Referring to Fig. 3,4,5,6; In order to increase damping; On the surface of contact of said piston (3) and pad (6), be provided with damp liquid revolution guiding gutter, described revolution guiding gutter can be circular (3-4), involute shape (3-5), plum blossom shape (3-6) or polygon-shaped (3-7) etc.
The working procedure of this damper is: referring to Fig. 1; When piston shaft (4) when pushing, seal ring (5) moves (i.e. position in the diagram) relatively behind the circular groove (3-1), and then the closed end of sealing between piston 3 front ends and the piston barrel and unidirectional damping liquid via hole (3-3) is opened; Damp liquid in the piston cylinder ante-chamber flows to the piston cylinder back cavity through two paths; A path is a bidirectional damper liquid via hole (3-2), and another path is the path that the slit forms between unidirectional damping liquid via hole (3-3) and piston and the piston cylinder, therefore; Liquid in the piston cylinder ante-chamber reduces fast; Make less, the rapid speed of damping of the preceding implementation journey of piston (3), be used to open the door, window, make open laborsaving and rapid; Otherwise when piston shaft (4) when pulling out, seal ring (5) moves forward with respect to circular groove (3-1); Make slit and unidirectional damping liquid via hole (3-3) sealing between piston cylinder and the piston, the damp liquid of piston cylinder back cavity only flows to the piston cylinder ante-chamber through path of bidirectional damper liquid via hole (3-2), in this course; Damp liquid passes through damp liquid turning slot (3-4) and entering piston cylinder ante-chamber more earlier through bidirectional damper liquid via hole (3-2), and this strengthens piston post-tensioning stroke; Corresponding damping is big, speed is slower; Be used to close door, window, make and close slowly, reduce noise.
Claims (2)
1. the accurate micropore hydraulic damper of a heavy damping; It comprises a piston cylinder (1), and the front end of this piston cylinder is a closed shape or to be provided with sealing stifled, and its tail end is provided with spindle guide to ring assembly (2); In described piston cylinder (1), be provided with a piston (3); A piston shaft (4) stretches in the described piston cylinder to ring assembly (2) through described spindle guide, and the head of this piston shaft is provided with a undergauge spindle nose (4-2), and described piston (3) is coaxial to be enclosed within on the undergauge spindle nose of piston shaft; And through a pad (6) riveted fixing; On the peripheral wall of said piston (3), have a circular groove (3-1), an O RunddichtringO (5) is installed in this circular groove, and described circular groove (3-1) is loose fit with said O RunddichtringO; In the inner chamber of said piston cylinder, be filled with damp liquid; On described piston (3), be provided with at least one bidirectional damper liquid via hole (3-2) and at least one unidirectional damping liquid via hole (3-3), described bidirectional damper via hole (3-2) is an axial hole, and described unidirectional damping liquid via hole (3-3) is axial half through hole; And the closed end of this axial half through hole communicates with circular groove (3-1), it is characterized in that: on the surface of contact of said piston (3) and pad (6), be provided with damp liquid revolution guiding gutter.
2. the accurate micropore hydraulic damper of heavy damping according to claim 1 is characterized in that: described damp liquid revolution guiding gutter can be ring guiding gutter (3-4), involute shape guiding gutter (3-5), quincunx guiding gutter (3-6) or polygonal guiding gutter (3-7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200024322U CN202392030U (en) | 2012-01-05 | 2012-01-05 | Heavy-damping precision microporus hydraulic damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200024322U CN202392030U (en) | 2012-01-05 | 2012-01-05 | Heavy-damping precision microporus hydraulic damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202392030U true CN202392030U (en) | 2012-08-22 |
Family
ID=46666958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200024322U Expired - Fee Related CN202392030U (en) | 2012-01-05 | 2012-01-05 | Heavy-damping precision microporus hydraulic damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202392030U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906161A (en) * | 2017-12-12 | 2018-04-13 | 西安科飞机电科技有限公司 | Buffer |
| CN109899617A (en) * | 2019-03-21 | 2019-06-18 | 西安联飞智能装备研究院有限责任公司 | A kind of hydraulic damper and hydraulic damping device assembly |
-
2012
- 2012-01-05 CN CN2012200024322U patent/CN202392030U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906161A (en) * | 2017-12-12 | 2018-04-13 | 西安科飞机电科技有限公司 | Buffer |
| CN109899617A (en) * | 2019-03-21 | 2019-06-18 | 西安联飞智能装备研究院有限责任公司 | A kind of hydraulic damper and hydraulic damping device assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203308270U (en) | Damper device for furniture hinge | |
| ATE467026T1 (en) | FLUID DAMPER | |
| MX339176B (en) | Axially damped hydraulic mount assembly. | |
| CN202392030U (en) | Heavy-damping precision microporus hydraulic damper | |
| WO2010088108A3 (en) | Open end variable bleed solenoid (vbs) valve with inherent viscous dampening | |
| CN102367857B (en) | Adjustable force type hydraulic damper | |
| CN103527027A (en) | Rotary damper capable of adjusting torque force | |
| GB201201388D0 (en) | Damped self-centering hinge mechanism | |
| CN203531597U (en) | Low-elasticity door closer | |
| CN203905699U (en) | Multifunctional hydraulic automatic hinge | |
| CN201843435U (en) | Micropore hydraulic damper | |
| CN201513503U (en) | high-precision hydraulic damper | |
| CN202391278U (en) | Easily-processed precise micropore hydraulic damper | |
| CN204553666U (en) | A kind of shock-resistant hydraulic damper | |
| CN102587776A (en) | Ring groove type heavy-damping micropore hydraulic damper | |
| CN209653737U (en) | A kind of releasing pressure automatically door closer | |
| CN209129963U (en) | Oil cylinder with floating buffer structure | |
| CN203531598U (en) | One-way valve mechanism of door closer | |
| CN109723308A (en) | A kind of releasing pressure automatically door closer | |
| CN210978338U (en) | Damping oil cylinder | |
| CN204253710U (en) | A kind of bitubular orifice restriction hydraulic damping motorcycle vibration absorber | |
| CN206468167U (en) | A kind of hinge buffer | |
| CN204357250U (en) | A kind of new type auto Bi Men mechanism | |
| EP2213528A3 (en) | Damping device on the bonnet of a motor vehicle | |
| CN211623047U (en) | Damper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20120822 Termination date: 20180105 |