CN102839881B - A kind of Damping rotation shaft - Google Patents
A kind of Damping rotation shaft Download PDFInfo
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- CN102839881B CN102839881B CN201110170040.7A CN201110170040A CN102839881B CN 102839881 B CN102839881 B CN 102839881B CN 201110170040 A CN201110170040 A CN 201110170040A CN 102839881 B CN102839881 B CN 102839881B
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Abstract
A kind of Damping rotation shaft, comprising: the housing with case lid, described case lid is fixed on one end of housing; Be rotatably mounted on the axis of rotation in described housing, described axis of rotation bottom is provided with flange, and this flange coordinates with housing and housing is divided into the first chamber and the second chamber, and this flange inside is provided with reducing hole, and inside, described reducing hole is placed with ball sealer; Be filled in the first chamber and the second chamber for providing the damping grease of resistance; Be arranged on for being communicated with the first hole and second hole of the first chamber and the second chamber on housing, described first hole and the second hole are by a channel connection; For regulating the first adjustable block piece and the second adjustable block piece that flow through damping grease flow, this first adjustable block piece and the second adjustable block piece are arranged in the first hole and the second hole respectively; Elastic component.When axis of rotation rotates, by regulating the first adjustable block piece and the second adjustable block piece, can the flow of damping adjusting fat, thus regulate the damping in rotation process.
Description
Technical field
The present invention relates to a kind of Damping rotation shaft.
Background technology
Along with the raising of people's rhythm of life and levels of substance, three open-door, clamshell doors, many enablings produce market share improve gradually, and refrigerator industry high-endization trend is obvious.Selling well corresponding with the high-end refrigerator such as three open-door, clamshell doors is that the concern ratio of products with larger capacity presents and stablely improves tendency, and especially volume is grown up rapidly in the concern ratio of the vast capacity refrigerator of more than 300L.Large Copacity means that refrigerator can store more article, but refrigerator door area is comparatively large, opens the door and increases air leakage, open refrigerator doors during each accessing article just to seem waste, and the time that refrigerator doors is opened is longer, cool air leakage is more serious, turn increases the energy consumption of refrigerator like this.In recent years, causing cold air to leak outside to prevent frequently opening or closing refrigerator doors, on large-capacity refrigerator door body, being provided with the window being convenient to direct access article, i.e. refrigerator counter; Meanwhile, article higher for frequency of utilization can be placed on refrigerator counter by user, facilitate use.
Above-mentioned refrigerator counter is formed to be communicated with the opening portion of compartment interior in refrigerator doors, and arrange on this opening portion can the device of opening/closing bar door, and the food in inside refrigerator door door basket can be facilitated to put into or take out.The bar door of prior art is generally rotatably arranged at by hinge member in the bar counter framework of edge of opening of refrigerator doors.Described hinge member comprises the parts such as shell, rotating shaft, should possess following functions: provide suitable resistance to slow down the impact to refrigerator doors when a body falls when bar-desk door body falls.Existing damping structure can realize damping substantially, but does not all have damping adjustable function, causes a damping unit can only provide a kind of damping force.
Summary of the invention
The present invention can only provide a kind of damping for solving existing Damping rotation shaft structure, can not the problem of damping adjusting size, thus provide a kind of can the Damping rotation shaft of damping adjusting size.
For solving the problems of the technologies described above, the invention provides following technical scheme:
A kind of Damping rotation shaft, comprising: the housing with case lid, described case lid is fixed on one end of housing; Be rotatably mounted on the axis of rotation in described housing, described axis of rotation bottom is provided with flange, and this flange coordinates with housing and housing is divided into the first chamber and the second chamber, and this flange inside is provided with reducing hole, and inside, described reducing hole is placed with ball sealer; Be filled in housing first chamber and the second chamber for providing the damping grease of resistance; Be arranged on for being communicated with the first hole and second hole of the first chamber and the second chamber on housing, described first hole and the second hole are by a channel connection; For regulating the first adjustable block piece and the second adjustable block piece that flow through damping grease flow, this first adjustable block piece and the second adjustable block piece are arranged in the first hole and the second hole respectively; Elastic component, arranges between described axis of rotation and described case lid, along with the contrary direction that described axis of rotation rotates, precompressed elastic force is applied to described axis of rotation.
Compared with prior art, the present invention has following beneficial effect: a kind of Damping rotation shaft structure provided by the invention, when axis of rotation rotates, by regulating the first adjustable block piece and the second adjustable block piece, can the flow of damping adjusting fat, thus regulate the damping in rotation process.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention Damping rotation shaft assembling schematic diagram.
Fig. 2 is H1-H2 directional profile schematic diagram in Fig. 1.
Fig. 3 is embodiment of the present invention Damping rotation shaft exploded perspective view.
Fig. 4 is embodiment of the present invention Damping rotation shaft case lid schematic diagram.
Fig. 5 is embodiment of the present invention elastic component schematic diagram.
Fig. 6 is that in Fig. 3, axis of rotation looks up structural representation.
Fig. 7 is rotation shaft side TV structure schematic diagram in Fig. 3.
Fig. 8 is embodiment of the present invention housing bottom view schematic diagram.
Fig. 9 is embodiment of the present invention housing overall diagram.
Figure 10 is the schematic diagram that the embodiment of the present invention is assemblied on bar-desk door body.
Figure 11 is that embodiment of the present invention Damping rotation shaft is at bar-desk door body closed condition schematic diagram.
Figure 12 is that embodiment of the present invention Damping rotation shaft is at bar-desk door body opening/closing process schematic.
Detailed description of the invention
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
A kind of Damping rotation shaft of the embodiment of the present invention, composition graphs 1 to Fig. 9, this Damping rotation shaft structure comprises: the housing 10 with case lid 2, and described case lid 2 is fixed on one end of housing 10; Be rotatably mounted on the axis of rotation 5 in described housing 10, described axis of rotation 5 bottom is provided with flange 5006, this flange 5006 coordinates with housing 10 and housing is divided into the first chamber A and the second chamber B, this flange 5006 inside is provided with reducing hole 5005, and inside, described reducing hole 5005 is placed with ball sealer 6; Be filled in housing first chamber A and the second chamber B for providing the damping grease 200 of resistance; Arrange on the housing 10 for being communicated with first hole 10011 and second hole 10012 of the first chamber A and the second chamber B, described first hole 10011 is communicated with by a path 10 010 with the second hole 10012; For regulating the first adjustable block piece 131 and the second adjustable block piece 132 flowing through damping grease flow, this first adjustable block piece 131 and the second adjustable block piece 132 are arranged in the first hole 10011 and the second hole 10012 respectively; Elastic component 3, arranges between described axis of rotation 5 and described case lid 2, along with the contrary direction that described axis of rotation 5 rotates, precompressed elastic force is applied to described axis of rotation.When axis of rotation 5 rotates, by regulating the first adjustable block piece 131 and the second adjustable block piece 132, can the flow of damping adjusting fat, thus regulate the damping in rotation process.
Respectively each parts are described below in conjunction with Fig. 1 to Fig. 9:
Hold-down screw 1 for connecting described case lid 2 and housing 10, to ensure to form specific revolution space between case lid 2 and housing 10.Described case lid 2 has four through holes 2001, and as shown in Figure 4, described hold-down screw 1 is coordinated with case lid 2 by through hole 2001; Described case lid 2 side is provided with a cylinder boss 2002, described cylinder boss 2002 has a blind hole 2003, and for the upper curved end 3001 of fixing elastic component 3, this elastic component 3 is torsionspring; Described cylinder boss 2002 is coordinated with the inside cylindrical face 1001 of housing 10 by the face of cylinder outside it 2006, is convenient to described case lid 2 and described housing 10 assembling and positioning; Described cylinder boss 2002 there is an annular groove 2004, for placing adjustment packing ring 4.
Torsionspring 3 in Fig. 5 is a center arm torsionspring, for storage power, for refrigerator counter, and appliance for releasing single opening force when opening in order to provide bar counter door of refrigerator body.Torsionspring 3 is assemblied in around the second boss 5002 of this axis of rotation 5, and torsionspring 3 has upper curved end 3001 and lower curved end 3002, and upper curved end 3001 is fixed in the blind hole 2003 of case lid 2, and is mated; Lower curved end 3002 is in the open slot 5008 on axis of rotation 5 intermediate cylindrical portion 5003, and this open slot 5008 is the non-loaded slewing area of torsionspring 3, can adjust as required.
Described adjustment packing ring 4 is for adjusting axial machining tolerance, and its upper surface coordinates with the groove 2004 of described case lid 2; Its lower surface coordinates with end face 5009 place of described axis of rotation 5 second boss 5002.
Described axis of rotation 5 is critical pieces of Damping rotation shaft structure of the present invention, is used for being connected with bar counter door of refrigerator body rotating, and realizes predetermined function.As shown in Figure 7, axis of rotation 5 comprises bottom 5004, the intermediate cylindrical portion 5003 be fixedly installed on bottom 5004, is fixedly installed on the second boss 5002 on intermediate cylindrical portion 5003, is fixedly installed on the first boss 5001 on the second boss 5002; Described intermediate cylindrical portion 5003 is provided with the first cannelure 5007 of placement first sealing ring 7.The periphery of the first boss 5001 coordinates with the face of cylinder 2005 of case lid 2, for position rotating Axial and radial position; Second boss 5002, spacing when moving for torsionspring 3; Intermediate cylindrical portion 5003 has open slot 5008, and this open slot 5008 is for the lower curved end 3002 of permanent twist spring 3; Bottom 5004 is for promoting damping grease flowing, bottom 5004 is provided with flange 5006, this flange 5006 coordinates with housing 10 and housing 10 is divided into the first chamber A and the second chamber B, the outer circumference surface of this flange 5006 coordinates with the inner hole surface 1001 of housing 10, this flange inside is provided with reducing hole 5005, and ball sealer 6 is placed in inside, reducing hole 5005, and this reducing hole 5005 can be round platform hole, also can be one end be macropore, one end be aperture; For macropore one end, one end aperture, sphere and the macropore face of ball sealer 6 form matched in clearance, and can flow in this gap has damping grease; The end of macropore side uses instrument it to be out of shape a little, and the aperture on this distortion and opposite ensures that bead does not depart from axis of rotation 5; In Fig. 6, the first screwed hole 50012, for loading damping grease, fills rear sealing screw 8 and this first screwed hole 50012 seals by the second sealing ring 9, ensures that damping grease only flows in the lower space of housing; Unthreaded hole 50013, for coordinating with bottom the 4th boss 1004 of housing 10, carries out centralized positioning.
Ball sealer 6 is arranged in the reducing hole 5005 of axis of rotation 5, in motion process, forms similar one-way valve structures.First sealing ring 7 is arranged on the first cannelure 5007 place of axis of rotation 5, and the inner hole surface 1001 of the first sealing ring 7 outer ring and housing 10 forms interference fit, ensures that damping grease only flows in lower space.
As shown in Figure 8 and Figure 9, Fig. 8 is embodiment of the present invention housing bottom view schematic diagram, and Fig. 9 is embodiment of the present invention housing overall diagram; Housing 10 comprises recessed operating space 1008 and damping adjustment device 1009.This housing 10 has 4 the second screwed holes 1006, for coordinating with hold-down screw 1; Recessed inside, operating space comprises the 3rd boss 1002, the 4th boss 1004 and positive stop lug boss 1007; Adjusting device comprises path 10 010 and the first hole 10011 and the second hole 10012; First hole 10011 and the second hole 10012 are counter sink, and path 10 010 is for the flowing of damping grease, and the end link block 11 of path 10 010 seals.First adjustable block piece 131 and the second adjustable block piece 132 are set screw nail, counter sink is used for installing sealing screw, form adjusting device, the outer end in this first hole 10011 and the second hole 10012 uses instrument to make it be out of shape, and ensures that two adjustment screw can not be screwed out.3rd sealing ring 121 and the 4th sealing ring 122 coordinate in the first hole 10011 and the second hole 10012 being assemblied in housing 10 respectively with described adjustment screw 131 and 132; Described adjustment screw 131 and 132 is different from general screw, and its end is provided with the second cannelure 1301, for installing the 3rd sealing ring 121 and the 4th sealing ring 122, forms the chamber of sealing.
As shown in Figures 1 to 9, ball sealer 6 is assemblied in the reducing hole 5005 of the flange 5006 of axis of rotation 5 bottom; First sealing ring 7 is fixed on the first cannelure 5007 place of axis of rotation 5 by elastic deformation, is connected with axis of rotation 5; Axis of rotation 5 is coordinated with the 4th boss 1004 that housing is recessed into bottom operating space 1008 by the unthreaded hole 50013 of bottom, loads in recessed operating space 1008; Flange 5006 on the bottom 5004 of axis of rotation 5 is placed in the free movement space (position of infinite place boss 1007 structure) in recessed operating space 1008.Now, the bottom surface 50011 of axis of rotation 5 coordinates with the base plane of housing 10, and bottom surface, middle part 50010 coordinates with the upper surface of the 3rd boss 1002, and the space below the 3rd boss 1002 end face is formed airtight storage damping grease space; Bottom space is divided into A, B two parts with the 3rd boss 1002 of housing 10 by the flange 5006 on axis of rotation 5 bottom 5004; Sealing screw 8 is through the second sealing ring 9, be threadedly secured in the first screwed hole 50012 of axis of rotation 5, the second sealing ring 9 is out of shape under the squeezing action of sealing screw 8, fits tightly at axis of rotation 5 counterbore 50014 on the surface, as shown in Figure 2, the effect of sealing damping grease is played; Adjustment pad 4 is loaded in the annular groove 2004 on the cylinder boss 2002 of case lid 2, and the ledge surface 5009 of the end face of adjustment pad 4 and axis of rotation 5 upper end is fitted; Torsionspring 3 is through the second boss 5002 of axis of rotation 5, and make the lower curved end 3002 of torsionspring 3 be placed between the two side of open slot 5008 of axis of rotation 5, upper curved end 3001 is placed in the blind hole 2003 in case lid 2; Case lid 2 is fixed on housing 10 by hold-down screw 1; Adjustment screw 131 and 132, through the 3rd sealing ring 121 and 122, is threadedly secured in the first hole 10011 and 10012 in housing adjusting device 1009, plays sealing function.
Figure 10 is bar-desk door body of the present invention assembling schematic diagram, is be arranged on refrigerator door by this invention rotating shaft 17, connects bar counter door of refrigerator body 16 and refrigerator door 15.Figure 11 is bar-desk door body closed condition schematic diagram of the present invention, and Figure 12 is bar-desk door body opening/closing process schematic of the present invention, and this two figure is the generalized section at H3-H4 place in FIG.Be bar counter door of refrigerator body 16 closed condition as shown in figure 11, now, ball sealer 6 is static to be in the reducing hole 5005 of axis of rotation 5, is full of damping grease around.As shown in figure 12, when pressing lower bar counter door of refrigerator body 16 top, door body 16 is due to the elasticity of torsionspring 3, to refrigerator doors 15 internal rotating certain angle, predetermined angular is 5 ~ 10 °, this predetermined angular also can be adjusted to other angles as required, and a side of the flange 5006 on axis of rotation 5 bottom 5004 reaches a side of the positive stop lug boss 1007 bottom the recessed operating space 1008 of housing 10, completes spacing effect; After loosing one's grip, bar-desk door body 16 is because the elastic force of torsionspring 3 is by counterclockwise automatically springing open certain angle; Now, bar-desk door body 16 falls downwards owing to being subject to self gravitation effect.The lower curved end 3002 of torsion spring 3 is slided between two walls of the open slot 5008 of axis of rotation 5 afterwards, does not form any twisting resistance.In airtight space, A and B two chambers are by the reducing hole 5005 on axis of rotation 5 and the first hole 10011 on housing 10, path 10 010 is communicated with the second hole 10012, in the process fallen, B cavity space diminishes, damping grease is extruded, cavity indoor pressure increases, ball sealer 6 is extruded to the small bore end in reducing hole 5005, this hole is sealed, damping grease flows to B chamber by A chamber with low discharge from the sideshake between ball sealer 6 and reducing hole 5005, A chamber is leaked to through the second hole 10012 and the first hole 10011 and the hole between the second adjustable block piece 132 and the first adjustable block piece 131 by B chamber, because space diminishes, damping grease flowing is very slow, bar-desk door body is caused to fall very slow, achieve damping, when bar counter door of refrigerator body 16 falls to preposition (angle), the side touching the bottom positive stop lug boss 1007 of housing 10 stops immediately.On the contrary, when closing refrigerator bar-desk door body, axis of rotation 5 rotates clockwise, and A chamber volume diminishes, and B chamber becomes large, in A chamber, damping grease is extruded, the pressure in this space becomes large, and the damped fat of ball sealer 6 is squeezed to the side, large aperture in reducing hole 5005, and now damping grease can flow to B chamber from A chamber more like a cork, flow back into A chamber from B chamber through the first hole 10011 and the second hole 10012 and the hole between the first adjustable block piece 131 and the second adjustable block piece 132, form loop.Damping grease flows faster, damping force is less, and bar counter door of refrigerator body is closed than being easier to; When closing to about 70 °, torsionspring 3 is subject to torsion, forms the precompression next time opened the door.In use, obtain larger damping force if wish, regulate by the first adjustable block piece 131 and the second adjustable block piece 132, the first adjustable block piece 131 and the second adjustable block piece 132 can be all screw, i.e. screw-driving, can reduce the flow clearance of damping grease; Unscrew screw, the flow clearance of damping grease can be increased.Realize different force value in the process so can rotated at axis of rotation 5, finally obtain different dampings.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a Damping rotation shaft, is characterized in that, comprising:
Have the housing of case lid, described case lid is fixed on one end of housing;
Be rotatably mounted on the axis of rotation in described housing, described axis of rotation bottom is provided with flange, and this flange coordinates with housing and housing is divided into the first chamber and the second chamber, and this flange inside is provided with reducing hole, and inside, described reducing hole is placed with ball sealer;
Be filled in housing first chamber and the second chamber for providing the damping grease of resistance;
Be arranged on for being communicated with the first hole and second hole of the first chamber and the second chamber on housing, described first hole and the second hole are by a channel connection;
For regulating the first adjustable block piece and the second adjustable block piece that flow through damping grease flow, this first adjustable block piece and the second adjustable block piece are arranged in the first hole and the second hole respectively; First adjustable block piece and the second adjustable block piece are set screw nail;
Elastic component, is arranged between described axis of rotation and described case lid, along with the contrary direction that described axis of rotation rotates, precompressed elastic force is applied to described axis of rotation;
Described axis of rotation comprises bottom, the intermediate cylindrical portion be fixedly installed on bottom, is fixedly installed on the second boss on intermediate cylindrical portion, is fixedly installed on the first boss on the second boss; Described intermediate cylindrical portion is provided with the first cannelure of placement first sealing ring.
2. Damping rotation shaft according to claim 1, is characterized in that, described reducing hole is round platform hole.
3. Damping rotation shaft according to claim 1, is characterized in that, one end, described reducing hole is macropore, and the other end is aperture.
4. Damping rotation shaft according to claim 1, is characterized in that, described first hole and the second hole are counter sink.
5. Damping rotation shaft according to claim 4, is characterized in that, the hole that the radius in described counter sink is little is screwed hole.
6. Damping rotation shaft according to claim 1, is characterized in that, described first adjustable block piece and the second adjustable block piece end are respectively arranged with the 3rd sealing ring and the 4th sealing ring.
7. Damping rotation shaft according to claim 1, is characterized in that, described elastic component is torsionspring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110170040.7A CN102839881B (en) | 2011-06-23 | 2011-06-23 | A kind of Damping rotation shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110170040.7A CN102839881B (en) | 2011-06-23 | 2011-06-23 | A kind of Damping rotation shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102839881A CN102839881A (en) | 2012-12-26 |
| CN102839881B true CN102839881B (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110170040.7A Active CN102839881B (en) | 2011-06-23 | 2011-06-23 | A kind of Damping rotation shaft |
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| CN (1) | CN102839881B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315070B (en) * | 2014-08-26 | 2017-11-03 | 中国直升机设计研究所 | A kind of adjustable damper device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1424529A2 (en) * | 2002-11-27 | 2004-06-02 | Samsung Electronics Co., Ltd. | Refrigerator |
| KR100439421B1 (en) * | 2000-11-23 | 2004-07-09 | 김흥기 | Door hinge unit |
| KR100494651B1 (en) * | 2003-12-31 | 2005-06-13 | 세원정밀주식회사 | Rotary type oil damper |
| KR20080078317A (en) * | 2007-02-23 | 2008-08-27 | 박철수 | Door closer |
| WO2009078676A1 (en) * | 2007-12-18 | 2009-06-25 | Dong Woo.Inc | Hinge assembly for home bar door of refrigerator and refrigerator using the same |
| CN101566414A (en) * | 2008-04-22 | 2009-10-28 | 三星电子株式会社 | Damping unit and refrigerator with the same |
| CN101688417A (en) * | 2007-06-29 | 2010-03-31 | 多玛两合有限公司 | Control valve |
-
2011
- 2011-06-23 CN CN201110170040.7A patent/CN102839881B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100439421B1 (en) * | 2000-11-23 | 2004-07-09 | 김흥기 | Door hinge unit |
| EP1424529A2 (en) * | 2002-11-27 | 2004-06-02 | Samsung Electronics Co., Ltd. | Refrigerator |
| KR100494651B1 (en) * | 2003-12-31 | 2005-06-13 | 세원정밀주식회사 | Rotary type oil damper |
| KR20080078317A (en) * | 2007-02-23 | 2008-08-27 | 박철수 | Door closer |
| CN101688417A (en) * | 2007-06-29 | 2010-03-31 | 多玛两合有限公司 | Control valve |
| WO2009078676A1 (en) * | 2007-12-18 | 2009-06-25 | Dong Woo.Inc | Hinge assembly for home bar door of refrigerator and refrigerator using the same |
| CN101566414A (en) * | 2008-04-22 | 2009-10-28 | 三星电子株式会社 | Damping unit and refrigerator with the same |
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| Publication number | Publication date |
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| CN102839881A (en) | 2012-12-26 |
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