CN201367795Y - Rotary damper - Google Patents
Rotary damper Download PDFInfo
- Publication number
- CN201367795Y CN201367795Y CNU2009200007594U CN200920000759U CN201367795Y CN 201367795 Y CN201367795 Y CN 201367795Y CN U2009200007594 U CNU2009200007594 U CN U2009200007594U CN 200920000759 U CN200920000759 U CN 200920000759U CN 201367795 Y CN201367795 Y CN 201367795Y
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- piston
- rotary damper
- described cylinder
- screw rod
- 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
- 238000013016 damping Methods 0.000 claims abstract description 18
- 239000004519 grease Substances 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 3
- 230000033001 locomotion Effects 0.000 claims description 11
- 238000000465 moulding Methods 0.000 claims description 5
- 239000003921 oil Substances 0.000 description 26
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 239000010720 hydraulic oil Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Images
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model relates to a rotary damper which comprises a cylinder body provided with at least one open end, a cylinder body cover sealing the opening end of the cylinder body, a piston positioned in the cylinder body, a screw and a guide mechanism which is arranged between the outer surface of the piston and the inner surface of the cylinder body, wherein two ends of the screw are rotatably supported relative to the cylinder body, at least one end of the screw passes through a through hole on an end face of the cylinder body cover, and thread of the screw is matched with a thread in a central hole formed on the piston. Damping grease is fully filled inside a sealed chamber, and a gap is arranged between the piston and the cylinder body so that the damping grease can move from one side of the piston to the other side thereof. The rotary damper has the functions of self-locking and positioning so that arbitrary stop, self-lock and positioning can be realized when a part of a door leaf, a window sash, and the like, which needs to be used by rotating or overturning, is opened to any state.
Description
Technical field
The utility model relates to a kind of damper.Specifically a kind of rotary damper with lock-bit function.
Background technology
Chinese patent literature CN87105418A discloses a kind of spring hinge that is used for the band damper on the door, it comprises two cylinders, described cylinder links together with the blade that is fixed on door and the doorframe respectively, one of them cylinder forms a sealed chamber, place a piston in the sealed chamber with screw thread, be fixed in the rotating shaft that has coarse pitch by thread piston, the centre bore that rotating shaft is passed on the closed cover of sealed chamber extend in second cylinder, and the second cylindrical rotation rotates rotating shaft in being full of the annular seal space of hydraulic oil, thereby make piston along cylindrical axially-movable, so the aperture of the moulding on piston of the hydraulic oil in the crush seal chamber from a side flow of piston to opposite side; When removing the external force that is applied on the door, the twisting resistance that is positioned at the spring generation of second cylinder makes rotating shaft rotate round about, thereby door is closed automatically.On the one hand, can make rotating shaft rotate round about, make the spring hinge of this band damper be applicable to need after door leaf is opened the occasion of closing automatically because the spring hinge of this band damper is positioned at the twisting resistance of the spring generation of second cylinder; On the other hand and since the aperture of hydraulic oil moulding on piston from a side flow of piston to opposite side, the contact area between hydraulic oil and the piston is less, the resistance that produces between the two from a side flow of piston to the process of opposite side at hydraulic oil is little; Therefore, the spring hinge of this band damper just can not be applied in door leaf or sash etc. need be opened to that the optional position all can realize arbitrarily stopping and the occasion of self-locking and location.
The utility model content
For this reason, technical problem to be solved in the utility model is to provide a kind of rotary damper with self-locking and positioning function, and the position that makes rotation of needs such as door leaf, sash or upset use is opened to free position and all can realizes arbitrarily stopping and self-locking and location.
For solving the problems of the technologies described above, the utility model is achieved by the following technical solution: a kind of rotary damper, and it comprises: a cylinder body, described cylinder body has at least one openend;
Cylinder body covers, and seals the openend of described cylinder body, to form sealed chamber in described cylinder body, forms through hole on the end face of one of them described cylinder body lid;
A piston that is positioned at described cylinder body is divided into two parts with described sealed chamber, and can form a mesopore on the described piston along described cylinder body axis back and forth movement, and described mesopore inwall has screw thread;
The rotatably supported screw rod of the described relatively cylinder body in two ends, its at least one end pass the through hole on the end face of described cylinder body lid, and the ground of the threads engaged in the mesopore of its screw thread and described piston meshes; And
Be arranged on the guiding mechanism between described outer surface of piston and the described inner surface of cylinder block, in described cylinder body, rotate to limit described piston;
Be full of damping grease in the described sealed chamber, described damping grease is provided with the gap between described outer surface of piston and the described inner surface of cylinder block, so that can move in the first of the described sealed chamber of described piston one side in the second portion of described sealed chamber of described piston opposite side.
Above-mentioned rotary damper, described cylinder body have an openend and a blind end, and the end that described screw rod stretches in the described cylinder body extend in the groove of moulding on the described blind end inwall rotationally.
Above-mentioned rotary damper is provided with spring between described cylinder body lid and the described piston.
Above-mentioned rotary damper, an end of described spring is fixedlyed connected with described piston, and the other end is fixedlyed connected with described screw rod.
Above-mentioned rotary damper, described cylinder body lid comprises oil pocket end cap and oil pocket end body; Be provided with big oil sealing between the inner surface of described oil pocket end external surface and described openend corresponding position, be provided with little oil sealing between described oil pocket end body inner surface and described screw rod corresponding position external surface; Described oil pocket end cap inner surface is provided with screw thread, so that described oil pocket end cap fixes with the corresponding end thread of described cylinder body, and described oil pocket end body is pressed in the described cylinder body.
Above-mentioned rotary damper, described guiding device comprise gathering sill that is arranged on described outer surface of piston and the guide rail that is provided with in described inner surface of cylinder block relevant position.
Above-mentioned rotary damper, described guiding device comprise guide rail that is arranged on described outer surface of piston and the gathering sill that is provided with in described inner surface of cylinder block relevant position.
Above-mentioned rotary damper, described cylinder body have an installed surface, form installing hole on the described installed surface.
Above-mentioned rotary damper, described screw rod is parallelogram, triangle or trapezoidal away from the cross section of described piston one end.
Above-mentioned rotary damper, described screw rod axially has screwed hole away from an end of described piston.
Technique scheme of the present utility model has the following advantages compared to existing technology: (1) is owing to be full of damping grease in the sealed chamber that forms in the described cylinder body, in the process of the described piston motion of described screw drive, damping grease moves in the first of the described sealed chamber of described piston one side through the gap between outer surface of piston and the inner surface of cylinder block in the second portion of described sealed chamber of described piston opposite side, and damping grease and piston and inboard wall of cylinder block contact area are big; Therefore during the damping grease in piston extruding cylinder body, can piston and inboard wall of cylinder block, produce bigger resistance during the opposite side of damping grease from a lateral movement of piston to piston, make door, window etc. need the position of rotation or upset use, in the process of rotation or upset, can be implemented in the optional position and arbitrarily stop and lock-bit, and the reliability height of lock-bit.(2) be provided with spring between described oil pocket end body and the described piston, on the one hand in the process of described piston motion, can play the resistance difference regulating action, in the time of can realizing on the other hand that piston moves in one direction on big, another direction of damping during motion damping little; One end of described spring is fixedlyed connected with described piston, the other end of described spring is fixedlyed connected with described screw rod, like this can be so that when described screw rod rotates, an end that is connected with described screw rod also rotates thereupon, thereby produce a active force, therefore make described screw rod when different directions rotates, firmly vary in size along described screw rod circumferencial direction.(3) described screw rod is provided with screwed hole away from an end of described piston, and described screw rod is parallelogram, triangle or trapezoidal away from the cross-sectional area of an end of described piston, makes the drive unit of described screw rod can install and rotate described screw rod easily.(4) described cylinder body has an installed surface, forms installing hole on the described installed surface; Make rotary damper of the present utility model be convenient to install and use.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment of the utility model also in conjunction with the accompanying drawings, the utility model is described in further detail, wherein below
The structural representation of Fig. 1 the utility model rotary damper;
The cross-sectional view of Fig. 2 the utility model rotary damper;
The screw-rod structure schematic diagram of Fig. 3 the utility model rotary damper;
The housing structure schematic diagram of Fig. 4 the utility model rotary damper.
Reference numeral is expressed as among the figure: 1-cylinder body, 2-piston, 3-screw rod, 4-spring, 5-oil pocket end body, the big oil sealing of 6-, the little oil sealing of 7-, 8-oil pocket end cap, 9-jack, 11-blind end, 12-openend, 13-screwed hole, the 14-guide rail, 15-gathering sill, 16-installing hole, 17-nut, 18-installed surface.
The specific embodiment
As depicted in figs. 1 and 2, the rotary damper of present embodiment comprises cylinder body 1, piston 2, screw rod 3 and cylinder body lid.Described cylinder body 1 has a blind end 11 and an openend 12.The openend 12 of the described cylinder body 1 of described cylinder body lid sealing is to form sealed chamber in described cylinder body 1.In the present embodiment, described cylinder body lid comprises oil pocket end cap 8 and oil pocket end body 5; Be provided with big oil sealing 6 between the inner surface of described oil pocket end body 5 external surfaces and described openend 12 corresponding positions, be provided with little oil sealing 7 between described oil pocket end body 5 inner surfaces and described screw rod 3 corresponding position external surfaces; Described oil pocket end cap 8 inner surfaces are provided with screw thread, so that described oil pocket end cap 8 fixes with the corresponding end thread of described cylinder body 1, and described oil pocket end body 5 are pressed in the described cylinder body 1.Described piston 2 is positioned at described cylinder body 1, and described sealed chamber is divided into two parts, and can be along described cylinder body 1 axis back and forth movement, and forms a mesopore on the described piston 2, and described mesopore inwall has screw thread.One end of described screw rod 3 passes through hole on the end face of described oil pocket end cap 8, described oil pocket end body 5 and the mesopore on the described piston 2, and extending into rotationally in the groove of moulding on described blind end 11 inwalls, and the ground of the threads engaged in the mesopore of its screw thread and described piston 2 engagement.Described piston 2 external surfaces also are provided with guide rail 14, and described cylinder body 1 inner surface relevant position is provided with the gathering sill 15 that cooperates with described guide rail 14, rotate in described cylinder body 1 to limit described piston 2.And described cylinder body 1 has an installed surface 18, forms installing hole 16 on the described installed surface 18; Being provided with spring 4 between described oil pocket end body 5 and the described piston 2, fixedlys connected with described piston 2 and described screw rod 3 by jack 9 respectively in the two ends of described spring 4; Described screw rod 3 is a square away from the cross section of described piston 2 one ends, and it axially has screwed hole 13, and nut 17 cooperates with described screwed hole 13.
The rotary damper of present embodiment when in use, cylinder body 1 fixedly mounts by the installing hole on the installed surface 18 16, rotate described screw rod 3, thereby drive described piston 2 and make the straight line back and forth movement, the opposite side of the gap of damping grease between described piston 2 and described cylinder body 1 inwall in the described sealed chamber of simultaneously described piston 2 extruding from a lateral movement of described piston 2 to described piston 2 along described cylinder body 1 axis.
Because damping grease moves in the first of the described sealed chamber of described piston 2 one sides through the gap between described piston 2 external surfaces and the inner surface of cylinder block in the second portion of described sealed chamber of described piston 2 opposite sides, damping grease and described piston 2 and inboard wall of cylinder block contact area are big; Therefore when the damping grease that described piston 2 pushes in the described cylinder body 1, can described piston 2 and inboard wall of cylinder block, produce bigger resistance during the opposite side of damping grease from a lateral movement of described piston 2 to described piston 2, make door, window etc. need the position of rotation or upset use, in the process of rotation or upset, can be implemented in the optional position and arbitrarily stop and lock-bit, and the reliability height of lock-bit.In the present embodiment, one end of described spring 4 is fixedlyed connected with described piston 2, the other end of described spring 4 is fixedlyed connected with described screw rod 3, like this can be so that when described screw rod 3 rotates, an end that is connected with described screw rod 3 also rotates thereupon, thereby produce a active force, therefore make described screw rod 3 when different directions rotates, firmly vary in size along described screw rod 3 circumferencial directions; In addition, in the process of described piston 2 motions, described spring 4 can also play the resistance difference regulating action.Described screw rod 3 is provided with screwed hole 13 away from an end of described piston 2, nut 17 cooperates with described screwed hole 13, described screw rod 3 is a square away from the cross-sectional area of an end of described piston 2, make the drive unit of described screw rod 3 can install and rotate described screw rod 3 easily, described in other embodiments screw rod 3 also can be parallelogram, triangle or trapezoidal away from the cross-sectional area of an end of described piston 2.Described cylinder body 1 has an installed surface 18, forms installing hole 16 on the described installed surface; Make rotary damper of the present utility model be convenient to install and use.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change still are among the protection domain of the utility model claim.
Claims (10)
1. rotary damper, it comprises:
A cylinder body (1), described cylinder body (1) has at least one openend (12);
Cylinder body covers, and seals the openend (12) of described cylinder body (1), to form sealed chamber in described cylinder body (1), forms through hole on the end face of one of them described cylinder body lid;
A piston (2) that is positioned at described cylinder body (1) is divided into two parts with described sealed chamber, and can form a mesopore on the described piston (2) along described cylinder body (1) axis back and forth movement, and described mesopore inwall has screw thread;
The rotatably supported screw rods of the described relatively cylinder bodies in two ends (1) (3), its at least one end pass the through hole on the end face of described cylinder body lid, and the ground of the threads engaged in the mesopore of its screw thread and described piston (2) meshes; And
Be arranged on the guiding mechanism between described piston (2) external surface and described cylinder body (1) inner surface, in described cylinder body (1), rotate to limit described piston (2);
It is characterized in that, be full of damping grease in the described sealed chamber, described damping grease is provided with the gap between described piston (2) external surface and described cylinder body (1) inner surface, so that can move in the first of the described sealed chamber of described piston (2) one sides in the second portion of described sealed chamber of described piston (2) opposite side.
2. rotary damper according to claim 1, it is characterized in that, described cylinder body (1) has an openend (12) and a blind end (11), and the end that described screw rod (3) stretches in the described cylinder body (1) extend in the groove of moulding on described blind end (11) inwall rotationally.
3. rotary damper according to claim 2 is characterized in that, is provided with spring (4) between described cylinder body lid and the described piston (2).
4. rotary damper according to claim 3 is characterized in that, an end of described spring (4) is fixedlyed connected with described piston (2), and the other end is fixedlyed connected with described screw rod (3).
5. rotary damper according to claim 4 is characterized in that, described cylinder body lid comprises oil pocket end cap (8) and oil pocket end body (5); Be provided with big oil sealing (6) between the inner surface of described oil pocket end body (5) external surface and described openend (12) corresponding position, be provided with little oil sealing (7) between described oil pocket end body (5) inner surface and described screw rod (3) corresponding position external surface; Described oil pocket end cap (8) inner surface is provided with screw thread, so that described oil pocket end cap (8) fixes with the corresponding end thread of described cylinder body (1), and described oil pocket end body (5) is pressed in the described cylinder body (1).
6. according to the arbitrary described rotary damper of claim 1-5, it is characterized in that described guiding device comprises gathering sill (15) that is arranged on described piston (2) external surface and the guide rail (14) that is provided with in described cylinder body (1) inner surface relevant position.
7. according to the arbitrary described rotary damper of claim 1-5, it is characterized in that described guiding device comprises guide rail (14) that is arranged on described piston (2) external surface and the gathering sill (15) that is provided with in described cylinder body (1) inner surface relevant position.
8. rotary damper according to claim 7 is characterized in that, described cylinder body (1) has an installed surface (18), forms installing hole (16) on the described installed surface (18).
9. rotary damper according to claim 8 is characterized in that, described screw rod (3) is parallelogram, triangle or trapezoidal away from the cross section of described piston (2) one ends.
10. rotary damper according to claim 9 is characterized in that, described screw rod (3) axially has screwed hole (13) away from an end of described piston (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200007594U CN201367795Y (en) | 2009-01-12 | 2009-01-12 | Rotary damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200007594U CN201367795Y (en) | 2009-01-12 | 2009-01-12 | Rotary damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201367795Y true CN201367795Y (en) | 2009-12-23 |
Family
ID=41486689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200007594U Expired - Fee Related CN201367795Y (en) | 2009-01-12 | 2009-01-12 | Rotary damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201367795Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI458882B (en) * | 2012-05-15 | 2014-11-01 | Wfe Technology Corp | Actuating motor set of electronic lock |
| CN105980951A (en) * | 2015-04-16 | 2016-09-28 | 深圳市大疆创新科技有限公司 | Turn button structure and focusing remote controller with same |
| TWI593866B (en) * | 2016-11-14 | 2017-08-01 | 台灣福興工業股份有限公司 | Electric lock and clutch mechanism thereof |
| CN109611509A (en) * | 2018-12-07 | 2019-04-12 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of damping adjustable rotary mechanism suitable for small space |
| CN112747077A (en) * | 2019-10-31 | 2021-05-04 | 青岛海尔洗衣机有限公司 | Damping device and washing machine provided with same |
-
2009
- 2009-01-12 CN CNU2009200007594U patent/CN201367795Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI458882B (en) * | 2012-05-15 | 2014-11-01 | Wfe Technology Corp | Actuating motor set of electronic lock |
| CN105980951A (en) * | 2015-04-16 | 2016-09-28 | 深圳市大疆创新科技有限公司 | Turn button structure and focusing remote controller with same |
| TWI593866B (en) * | 2016-11-14 | 2017-08-01 | 台灣福興工業股份有限公司 | Electric lock and clutch mechanism thereof |
| US10287798B2 (en) | 2016-11-14 | 2019-05-14 | Taiwan Fu Hsing Industrial Co., Ltd. | Electric lock and clutch mechanism thereof |
| CN109611509A (en) * | 2018-12-07 | 2019-04-12 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of damping adjustable rotary mechanism suitable for small space |
| CN112747077A (en) * | 2019-10-31 | 2021-05-04 | 青岛海尔洗衣机有限公司 | Damping device and washing machine provided with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201367795Y (en) | Rotary damper | |
| CN101608521A (en) | A kind of hinge of automatic location | |
| CN110499984B (en) | Dabber and device have universal hydraulic hinge of violence prevention of this dabber | |
| KR101061898B1 (en) | Floor hinge assembly | |
| KR20150040499A (en) | Hinge using cam for door | |
| CN1208538C (en) | Door hinge device having damping function | |
| JP4510608B2 (en) | Door braking device | |
| CN202596383U (en) | Automatic closing damping door and window hinge with positioning function | |
| CN201326332Y (en) | Door closer | |
| CN201326333Y (en) | Hinge | |
| CN201326334Y (en) | Hinge with damper | |
| CN201424881Y (en) | Window hinge enabling window sash to be overturned flexibly | |
| CN112392882A (en) | Flexible shock absorber capable of flexibly adjusting rigidity of internal spring | |
| CN203515106U (en) | Integration stepless type car door stopper | |
| CN101949247A (en) | Buffering hinge and use method thereof | |
| CN201802205U (en) | Buffering hinge | |
| CN217106601U (en) | Integral type damping hinge | |
| CN216666333U (en) | Damping buffer structure for changing linear motion into rotary motion | |
| CN105672799A (en) | Floor spring | |
| CN212614266U (en) | Hydraulic buffering shaft core device | |
| CN211874305U (en) | Upgradable large-gradient vertical-rotation falling type anti-flooding protective airtight door | |
| CN201326335Y (en) | Hinge with damper | |
| CN110565340B (en) | Door cover damping device, door cover assembly and washing machine | |
| CN218715975U (en) | Random stop positioning device | |
| KR200243185Y1 (en) | Inner type door open & close damper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20120112 |