CN102418763A - Unidirectional rotary impact damper - Google Patents
Unidirectional rotary impact damper Download PDFInfo
- Publication number
- CN102418763A CN102418763A CN2011102386559A CN201110238655A CN102418763A CN 102418763 A CN102418763 A CN 102418763A CN 2011102386559 A CN2011102386559 A CN 2011102386559A CN 201110238655 A CN201110238655 A CN 201110238655A CN 102418763 A CN102418763 A CN 102418763A
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- running shaft
- blade
- main body
- latch
- buffering
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Abstract
The invention relates to a unidirectional rotary impact damper, which comprises a body and a rotating shaft, wherein the outer surface of the part, inserted into the body, of the rotating shaft is a curved surface; and blades are arranged on the rotating shaft. The unidirectional rotary impact damper is characterized in that: latches are arranged on the rotating shaft; clamping troughs are formed on the blades; one side of the blade is provided with an oil duct, and the other side of the blade is provided with an impact damping plane; the blades are arranged on the rotating shaft through the latches and the clamping troughs; a clearance for circumferential movement is reserved between the latch and the corresponding clamping trough; oil pressure diversion trenches are formed in the bottom surface of the body, and are gradually narrowed from one end to the other end from the impact damping rotating direction of the impact damper; a first arched impact damping surface, a second arched impact damping surface and a third arched impact damping surface are formed on the rotating shaft sequentially from the side of one blade provided with the oil duct to the side of the other blade provided with the impact damping plane,; and the arc length of the third arched impact damping surface on one side of the latch on the rotating shaft is greater than that of the third arched impact damping surface on the other side of the latch. The unidirectional rotary impact damper has a simple structure, a small volume, attractive mounting appearance, good impact damping effects and long service life.
Description
Technical field
The present invention relates to a kind of buffer unit, particularly relate to a kind of unidirectional rotary buffer.
Background technique
Along with improving constantly of economic level, people to the requirement of quality of life also in continuous increase, the graceful toilet extensive use in high-grade apartment or dwelling house attractive in appearance of profile.Unidirectional rotary buffer is to make toilet circle lid; Cover plate for washing machine, furniture cover plate, the device that daily living articles such as auto parts machinery slowly screw; Claim cover plate buffer, damper again; Be included in its inwall be arranged with the main body of two longitudinal rib bodies, wherein a headband two symmetries are arranged and the longitudinal rib body put and be placed in the axle housing, that the other end extends in main body is outer and be provided with the rotating shaft of rib groove, the two sealing fit and form Seal cage is marked with damping oil in the Seal cage; The outer surface that running shaft inserts the part of main body is the curved surface of radius gradual change; Constituted oil-gap between the longitudinal rib body of curved surface and main body, the longitudinal rib body of running shaft is provided with groove and movable pivot joint has the blade of valve metal film and forms safety check, and blade is divided into hyperbaric chamber and low pressure chamber with Seal cage.Be provided with the oil pressure guiding gutter of degree of depth gradual change on the running shaft relatively; Rotation along with running shaft; The above-mentioned degree of depth of crossing the oil pressure guiding gutter under the longitudinal rib body on oil-gap and the main body reduces gradually; Damping oil in the Seal cage reduces through the flow of blade from the hyperbaric chamber to the low pressure chamber gradually, and circulating resistance increases gradually, thereby realizes the effect of buffering.
Running shaft and main body in the said structure are processed by plastics; Working life is short, in addition, and in order on running shaft, to process the oil pressure guiding gutter and to make running shaft can bear bigger moment of torsion; The overall dimensions of running shaft is wanted strict restriction; The overall dimensions that is running shaft can not be too small, and is big like the overall dimensions of buffer, not only takies installing space and has a strong impact on attractive in appearance.
The buffer of said structure; When buffer gets into the buffering end during stage; Oil-gap excessively on the main body between the gradual change curved surface of the top cambered surface of longitudinal rib body and running shaft is minimum; Damping oil in the buffer hyperbaric chamber mainly from the blade the fine clearance between valve metal film and the blade body be circulated to the low pressure chamber of buffer, at this moment, buffer obtains the maximum cushioning effect.When the running shaft of one-way damper turns round; Require buffer to reduce steering resistance, but in the first stage of revolution, former hyperbaric chamber and low pressure chamber are exchanged as far as possible; Damping oil in the hyperbaric chamber all from the blade the fine clearance between valve metal film and the blade body be circulated to the low pressure chamber of buffer; The gradual change curved surface of the top cambered surface of longitudinal rib body and running shaft separates and produced oil-gap on main body, this process make one-way damper turn round just again the stage has sizable damping, do not meet usage requirement.
The gradual change curved surface of running shaft is made up of two-part that the longitudinal rib body through running shaft is divided into; Each part is made up of three sections circular arc buffering sufaces; The radius of arc of three sections circular arc buffering sufaces increases successively, reduces the oily slit of mistake between the gradual change curved surface of top cambered surface and running shaft of longitudinal rib body on the main body with this through rotating running shaft.Two-part gradual change center of surface symmetry that is divided into by the longitudinal rib body of running shaft; So the oil-gap of crossing between the top cambered surface of two longitudinal rib bodies of buffer main body and the gradual change curved surface of running shaft becomes minimum simultaneously; Thereby make buffer buffers excessively stiff, not mild; And be easy to generate vibrations, cushioning effect is poor.
Summary of the invention
The present invention for solve the technical problem that exists in the known technology provide a kind of simple in structure, volume is little, installation is attractive in appearance, the unidirectional rotary buffer of good buffer effect, long service life.
The technological scheme that the present invention takes for the technical problem that exists in the solution known technology is: a kind of unidirectional rotary buffer; Comprise that its inwall is provided with the columnar main body of symmetrical longitudinal rib body and is inserted into the running shaft in the main body; The end that said running shaft is positioned at the main body outside has connection handle; The outer surface that said running shaft inserts the part of main body is the curved surface of the circumferential gradual change of radius, and the blade of symmetry is installed on the said running shaft, it is characterized in that: the part of inserting main body on the said running shaft is arranged with latch; Has draw-in groove on the said blade; A side of said blade is provided with the oil duct that connects with draw-in groove, and the opposite side of said blade is the buffering plane, and the direction that a side direction that has oil duct on the blade has a sideway swivel on buffering plane on it is the buffering sense of rotation of buffer; Said blade pass crosses latch and draw-in groove is installed on the said running shaft, is provided with circumferential free gap between latch and the draw-in groove; The inside, bottom surface of said main body is positioned at longitudinal rib body both sides and is equipped with the oil pressure guiding gutter, and the cell body width from its end to end reduces the oil pressure guiding gutter gradually from the buffering sense of rotation of buffer; The side with buffering plane from a side to another blade with oil duct of a blade on said running shaft is provided with the first circular arc buffering suface, second circular arc buffering suface and the three-arc buffering suface successively, is positioned at the arc length of the arc length of the three-arc buffering suface of latch one side on the running shaft greater than the three-arc buffering suface of its opposite side.
The present invention can also adopt following technological scheme:
Said running shaft and latch are processed by metallic material.
The material of said main body is PBT, and the material of said blade is POM.
Circumferential free gap between said latch and the draw-in groove is 0.6mm.
The outer wall of said main body is provided with the card muscle that is used to install.
Advantage and good effect that the present invention has are: because the present invention adopts said structure; Be that running shaft is processed with metal; And the oil pressure guiding gutter is arranged on the inside, bottom surface of main body; So can under the prerequisite that guarantees running shaft intensity, reduce the size of running shaft, thereby reduce the overall dimensions of buffer, it is more attractive in appearance to make buffer install.
Blade pass crosses latch and draw-in groove is installed on the said running shaft; Be provided with circumferential free gap between latch and the draw-in groove, the running shaft of buffer is in the process of buffering, and the buffering plane of blade is fitted by the interior damping oil effect of buffer hyperbaric chamber and slide calliper rule one side of running shaft; Buffer gets into final buffer during the stage; The low pressure chamber that damping oil in the hyperbaric chamber all is circulated to buffer from the buffering plane and the fine clearance between the running shaft of blade, buffer obtains the maximum cushioning effect, if this moment one-way damper the running shaft revolution; Former hyperbaric chamber and low pressure chamber are exchanged; Damping oil in the hyperbaric chamber also will be pushed open with the buffering plane that slide calliper rule are fitted through the oil duct and the draw-in groove of blade, and damping oil passes through from the buffering plane of blade and the big slit between the running shaft, compares existing individual event buffer; Rotating resistance reduces greatly, more can satisfy usage requirement.
Be positioned at the arc length of the arc length of the three-arc buffering suface of latch one side on the running shaft greater than the three-arc buffering suface of its opposite side; In the process of buffer rotation; The oil-gap of crossing on the main body between the top cambered surface of two longitudinal rib bodies and two the three-arc buffering sufaces successively arrives minimum value; Thereby make the mild transition buffer of buffer, good buffer effect can not produce vibration.
Description of drawings
Fig. 1 is a structural representation of the present invention;
The structural representation of running shaft among Fig. 2 the present invention;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the structural representation of blade-section among the present invention;
Fig. 5 is an integral installation figure of the present invention.
Among the figure: 1, main body; 1-1, longitudinal rib body; 1-2, oil pressure guiding gutter; 1-3, card muscle; 2, running shaft; 2-1, connection handle; 2-2, latch; 2-3, the first circular arc buffering suface; 2-4, the second circular arc buffering suface; 2-5, three-arc buffering suface; 3, end cap; 4, blade; 4-1, draw-in groove; 4-2, oil duct; 4-3, buffering plane; 5, circumferential free gap.
Embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, the following examples of giving an example now, and conjunction with figs. specifies as follows:
See also Fig. 1-Fig. 5; A kind of unidirectional rotary buffer, its structure comprise columnar main body 1 and are inserted into the running shaft 2 in the main body 1 that the part in the running shaft 2 is positioned at the inside of main body 1; Another part of running shaft 2 is positioned at the outside of main body 1; Inside and outside two-part of running shaft 2 were opened by suit running shaft 2 and the end cap that is fixed on the main body 1 in 3 minutes, and end cap 3 makes main body 1 with running shaft 2 sealing fits and form Seal cage, is marked with damping oil in the Seal cage.The inwall of main body 1 is provided with the longitudinal rib body 1-1 of symmetry; The outer wall of main body 1 is provided with the card muscle 1-3 that is used to install; Running shaft 2 is positioned at main body 1 an outer end and has connection handle 2-1; The part that running shaft 2 is positioned at main body 1 is arranged with latch 2-2, and the outer surface that running shaft 2 inserts the part of main body 1 is the curved surface of radius gradual change.The material of main body 1 is PBT; The material of running shaft 2 is a metal; Be main body 1, be positioned at the longitudinal rib body 1-1 on main body 1 inwall and be positioned at the integrative-structure that the card muscle 1-3 on main body 1 outer wall is processed by the PBT material that running shaft 2, the latch 2-2 and the connection handle 2-1 of running shaft 2 one ends that are positioned on the running shaft 2 are integral structures of being processed by metallic material, so can be under the prerequisite that guarantees running shaft 2, latch 2-2 intensity; Reduce the size of running shaft to a certain extent; Thereby reduce the overall dimensions of buffer, dwindle buffer shared space is installed, order is installed more attractive in appearance.In this indefiniteness embodiment, the metallic material that is used to make rotating shaft 2 and latch 2-2 is zinc alloy or magnesium alloy, and is too high because of the magnesium alloy cost, selects zinc alloy material in the present embodiment for use.
The inside, bottom surface of main body 1 is positioned at longitudinal rib body 1-1 both sides and is equipped with oil pressure guiding gutter 1-2; Above-mentioned running shaft 2 is the buffering sense of rotation of buffer from the direction that a side direction that has oil duct 4-2 on the blade 4 has the sideway swivel of buffering plane 4-3 on it, and the cell body width from its end to end reduces oil pressure guiding gutter 1-2 gradually from the buffering sense of rotation of buffer.Compare the oil pressure guiding gutter that is arranged in the existing technology on the running shaft, the innovative design of this structure can further reduce the overall dimensions of buffer.
The curved surface of above-mentioned radius gradual change is rotated two latch 2-2 separated into two parts on the axle 2; Every part curved surface is made up of three sections circular arc cambers; The side with buffering plane 4-3 from the side with oil duct 4-2 to another blade 4 of a blade 4 on the running shaft 2 is made as the first circular arc buffering suface 2-3 successively; The second circular arc buffering suface 2-4 and three-arc buffering suface 2-5, and the radius of cambered surface increases successively.In laying respectively at latch both sides two-part curved surface, the arc length of three-arc buffering suface is greater than the arc length of the three-arc buffering suface of its opposite side.
Working principle:
During buffer status; External force is rotated through the running shaft that connection handle drives buffer; The buffer intra vane is divided into hyperbaric chamber and low pressure chamber with the Seal cage of running shaft and main body formation, and damping oil flows into low pressure chamber by hyperbaric chamber, receives the effect of hyperbaric chamber damping oil; Fitting in a side of the buffering plane of blade and running shaft latch, only has very little slit between buffering plane and the running shaft.Buffering is the stage just; The damping oil mainly inner oil pressure guiding gutter in oily slit of mistake and main body bottom surface between the first circular arc buffering suface of the top cambered surface through longitudinal rib body on the main body and running shaft flows into low pressure chamber from hyperbaric chamber; Rotation along with running shaft; Get into the stage in the buffering; The damping oil mainly inner oil pressure guiding gutter in oily slit of mistake and main body bottom surface between the second circular arc buffering suface of the top cambered surface through longitudinal rib body on the main body and running shaft flows into low pressure chamber from hyperbaric chamber, and because of the width of oil pressure guiding gutter diminishes with the running shaft rotation, and the radius of arc that the radius of arc of the second circular arc buffering suface is compared the first circular arc buffering suface increases; Cause integral body between hyperbaric chamber and the low pressure chamber to cross oily slit and diminish, thereby increase cushioning effect.Because of being positioned at the arc length of the arc length of the three-arc buffering suface of latch one side on the running shaft greater than the three-arc buffering suface of its opposite side; Rotation along with running shaft; The oil-gap of crossing on the main body between the top cambered surface of two longitudinal rib bodies and two the three-arc buffering sufaces successively arrives minimum value; And blade contacts with the inner planar friction in main body bottom surface; The mild transition of buffer also gets into the buffering end stage, and the damping oil in the hyperbaric chamber mainly gets into low pressure chamber from the micro gap between blade and the running shaft, and this moment, the cushioning effect of buffer was maximum.
When the running shaft of treating buffer need turn round; Former hyperbaric chamber and low pressure chamber are exchanged; Damping oil in the hyperbaric chamber also will be pushed open with the buffering plane that slide calliper rule are fitted through the oil duct and the draw-in groove of blade, and damping oil passes through from the buffering plane of blade and the big slit between the running shaft, compares existing individual event buffer; Turn round initial resistance and reduce greatly, more can satisfy usage requirement.
In the present embodiment; As shown in the figure, the L scope is the first circular arc buffering suface, and the arc round angle of two first circular arc buffering sufaces is 87 °-89 °; The K scope is the second circular arc buffering suface; The arc angle of two second circular arc buffering sufaces is respectively 17 °-19 ° and 14 °-16 °, and the J scope is the three-arc buffering suface, and the angle of two three-arc buffering sufaces is respectively 23 °-25 ° and 26 °-28 °.The radius of the first circular arc buffering suface, the second circular arc buffering suface and three-arc buffering suface increases successively, and the semidiameter of adjacent two buffering arc surfaces is 2mm.
Claims (5)
1. unidirectional rotary buffer; Comprise that its inwall is provided with the columnar main body of symmetrical longitudinal rib body and is inserted into the running shaft in the main body, the end that said running shaft is positioned at the main body outside has connection handle, and the outer surface that said running shaft inserts the part of main body is the curved surface of the circumferential gradual change of radius; The blade of symmetry is installed on the said running shaft; It is characterized in that: the part of inserting main body on the said running shaft is arranged with latch, has draw-in groove on the said blade, and a side of said blade is provided with the oil duct that connects with draw-in groove; The opposite side of said blade is the buffering plane; The direction that a side direction that has oil duct on the blade has a sideway swivel on buffering plane on it is the buffering sense of rotation of buffer, and said blade pass crosses latch and draw-in groove is installed on the said running shaft, is provided with circumferential free gap between latch and the draw-in groove; The inside, bottom surface of said main body is positioned at longitudinal rib body both sides and is equipped with the oil pressure guiding gutter, and the cell body width from its end to end reduces the oil pressure guiding gutter gradually from the buffering sense of rotation of buffer; The side with buffering plane from a side to another blade with oil duct of a blade on said running shaft is provided with the first circular arc buffering suface, second circular arc buffering suface and the three-arc buffering suface successively, is positioned at the arc length of the arc length of the three-arc buffering suface of latch one side on the running shaft greater than the three-arc buffering suface of its opposite side.
2. unidirectional rotary buffer according to claim 1 is characterized in that: said running shaft and latch are processed by metallic material.
3. unidirectional rotary buffer according to claim 1 is characterized in that: the material of said main body is PBT, and the material of said blade is POM.
4. unidirectional rotary buffer according to claim 1 is characterized in that: the circumferential free gap between said latch and the draw-in groove is 0.6mm.
5. unidirectional rotary buffer according to claim 1 is characterized in that: the outer wall of said main body is provided with the card muscle that is used to install.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102386559A CN102418763A (en) | 2011-08-19 | 2011-08-19 | Unidirectional rotary impact damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102386559A CN102418763A (en) | 2011-08-19 | 2011-08-19 | Unidirectional rotary impact damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102418763A true CN102418763A (en) | 2012-04-18 |
Family
ID=45943332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102386559A Pending CN102418763A (en) | 2011-08-19 | 2011-08-19 | Unidirectional rotary impact damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102418763A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102920390A (en) * | 2012-09-18 | 2013-02-13 | 台州市信恩洁具配件有限公司 | Metal buffering hinge for toilet lid |
| CN110604504A (en) * | 2019-08-28 | 2019-12-24 | 蔡燕辉 | Fast-assembling attenuator |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5850342A (en) * | 1981-09-21 | 1983-03-24 | Nissan Motor Co Ltd | Impact torque absorber |
| JPH05296267A (en) * | 1992-04-23 | 1993-11-09 | Matsushita Electric Ind Co Ltd | Hydraulic rotary decelerating device |
| US5305858A (en) * | 1991-07-22 | 1994-04-26 | Toyoda Koki Kabushiki Kaisha | Rotary shock absorber having vanes with radial flow clearance |
| JP2005188636A (en) * | 2003-12-25 | 2005-07-14 | Somic Ishikawa Inc | Rotary damper |
| CN101191397A (en) * | 2006-11-24 | 2008-06-04 | 龚斌华 | Damping mechanism |
| CN201219865Y (en) * | 2008-04-30 | 2009-04-15 | 厦门豪帝卫浴工业有限公司 | Damping device |
| JP2009092086A (en) * | 2007-10-03 | 2009-04-30 | Fuji Latex Kk | Rotating damper device |
| CN201598919U (en) * | 2010-01-28 | 2010-10-06 | 中国计量学院 | Device capable of realizing grading of unidirectional damping and larger damping difference in bidirectional motion |
| CN201982566U (en) * | 2011-05-06 | 2011-09-21 | 天津市丹普科技有限公司 | Unidirectional rotary buffer |
-
2011
- 2011-08-19 CN CN2011102386559A patent/CN102418763A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5850342A (en) * | 1981-09-21 | 1983-03-24 | Nissan Motor Co Ltd | Impact torque absorber |
| US5305858A (en) * | 1991-07-22 | 1994-04-26 | Toyoda Koki Kabushiki Kaisha | Rotary shock absorber having vanes with radial flow clearance |
| JPH05296267A (en) * | 1992-04-23 | 1993-11-09 | Matsushita Electric Ind Co Ltd | Hydraulic rotary decelerating device |
| JP2005188636A (en) * | 2003-12-25 | 2005-07-14 | Somic Ishikawa Inc | Rotary damper |
| CN101191397A (en) * | 2006-11-24 | 2008-06-04 | 龚斌华 | Damping mechanism |
| JP2009092086A (en) * | 2007-10-03 | 2009-04-30 | Fuji Latex Kk | Rotating damper device |
| CN201219865Y (en) * | 2008-04-30 | 2009-04-15 | 厦门豪帝卫浴工业有限公司 | Damping device |
| US20110209305A1 (en) * | 2008-04-30 | 2011-09-01 | Guo-Bin Chen | Damping device |
| CN201598919U (en) * | 2010-01-28 | 2010-10-06 | 中国计量学院 | Device capable of realizing grading of unidirectional damping and larger damping difference in bidirectional motion |
| CN201982566U (en) * | 2011-05-06 | 2011-09-21 | 天津市丹普科技有限公司 | Unidirectional rotary buffer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102920390A (en) * | 2012-09-18 | 2013-02-13 | 台州市信恩洁具配件有限公司 | Metal buffering hinge for toilet lid |
| CN110604504A (en) * | 2019-08-28 | 2019-12-24 | 蔡燕辉 | Fast-assembling attenuator |
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| PB01 | Publication | ||
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Application publication date: 20120418 |