CN1637225A - Rotary oil damper - Google Patents
Rotary oil damper Download PDFInfo
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- CN1637225A CN1637225A CNA200410080833XA CN200410080833A CN1637225A CN 1637225 A CN1637225 A CN 1637225A CN A200410080833X A CNA200410080833X A CN A200410080833XA CN 200410080833 A CN200410080833 A CN 200410080833A CN 1637225 A CN1637225 A CN 1637225A
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- oil damper
- demarcation strip
- rotary
- rotating shaft
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- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 239000000446 fuel Substances 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 238000013016 damping Methods 0.000 abstract description 43
- 238000007789 sealing Methods 0.000 abstract description 5
- 230000007423 decrease Effects 0.000 abstract 1
- 230000014509 gene expression Effects 0.000 description 18
- 239000012530 fluid Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 238000000354 decomposition reaction Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 235000021109 kimchi Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
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Abstract
The present invention discloses a rotating type oil damper comprising a dampener body with a chamber filled with oil and with one end opened; a rotating shaft capable of being rotatablely received in the dampener body; a circular arc groove inserting into the first separating plate of the dampener body and used for forming a pair of valve holes and a pair of circular arc oil passage ways through with oil pass at the first separating plate, wherein the depth formed at both sides of the first separating plate and being in connection with the oil passage way gradually decreases; a second separating plate mounted at top surface of said first separating plate, wherein an oil channel is formed between the first separating plate and the second separating plate; a back valve mounted inside the dampener and used for switching on/of said pair of valve holes; and a cap mounted at the dampener body and used for sealing. When the dampener body is switched on/off, said rotating type oil damper generates different damping forces at different stages.
Description
Technical field
The present invention relates to a kind of rotary oil damper, and be particularly related to and a kind ofly by each rotating part different damping forces be set and make user's rotary oil damper of ON/OFF rotary body easily at a rotary body.
Background technology
Usually, rotary-type damper is by the power of cutting out in control ON/OFF lid, cover or the door process, and for example lid, cover or the door of piano or Kimchi refrigerator are closed rapidly and be used to prevent rotary body.
Rotary damper commonly used is divided into the elastic component type rotary damper that uses elastic component such as spring and uses viscous fluid to apply the rotary oil damper of damping force.
Open 88-14508 is disclosed as korean patent application, and the rotary-type damper of elastic component type comprises a housing, and one is rotatably inserted the axle that this housing and an end stretch out, and one be installed in housing and spool between elastic component, to apply a damping force to axle.
The rotary-type damper of this elastic component type is producing damping force on the both direction forward and backward, if only need damping force in one direction, then can not use this damper.Passing in time, the elastic force of elastic component such as spring changes, so the rotary-type damper of elastic component type can not keep the target damping force.
The rotary-type damper of elastic component type is producing damping force forward and on the direction backward.If only require damping force in one direction, then can not use this damper.The elastic force of elastic component such as spring can change as time goes by, and the rotary-type damper of elastic component type can't keep the target damping force like this.
In addition, as United States Patent (USP) 5,635, disclosed in 655, a kind of rotary oil damper commonly used comprises: the hollow housing with chamber of a both ends open; A pivot unit that rotatably is inserted in the housing, an end of this pivot unit stretches out, and has one and be arranged on the radially-protruding projection of part in the chamber from it; One with the bump bonds effect of described pivot unit and with the removable valve of the outer surface work of perimeter surface in its housing that reclines; A stop part that inwardly stretches out the rotation that stops removable valve from housing; The closure member that is used for the two ends of closure casing; And be filled in viscous fluid in the described chamber.And, on two sidewalls of removable valve, form fluid passage with different cross-sectional areas, on projection, form fluid passage with cross-sectional area bigger than above-mentioned fluid passage.
When the viscous fluid at a lateral region place in the chamber that is separated by projection and removable valve in the rotation in projection flows to zone, the other side by the fluid passage that is formed by projection and removable valve, fluid passage plays the resistance factor of viscous fluid flow, so this rotary oil damper can obtain damping force.
Ideally, all must the recline inner surface of two closure members of two parts protruding and removable valve, thus viscous fluid can not be from flowing through between them, but the fluid path of flow through projection and removable valve.
But two parts protruding and removable valve are radially to arrange, rotate and abut in the inner surface of two closure members, thereby can not use O shape ring.Therefore projection directly abuts on two closure members and rotation with two parts of removable valve with required predetermined tolerance.Therefore, two zones of viscous fluid between the inner surface of projection and two parts of removable valve and two closure members are inevitable to internal leakage.
When interregional mobile between the inner surface of viscous fluid at projection and two parts of removable valve and two closure members, can not accurately produce according to the damping force of the cross-sectional area setting of the fluid passage of removable valve.
In addition, once propose a kind of method, by strengthening the projection and the cross-sectional area of removable valve, thereby ignored the inside leakage of the viscous fluid between the inner surface of two parts of protruding and removable valve and two closure members.
In this case, because the cross-sectional area of fluid passage strengthens, can not obtain big damping force.In order to improve damping force, must enlarge the overall dimensions of damper.
As Korean Patent 208, disclosed such in 746, in rotary oil damper commonly used, in housing, form first and second discharge chambe, between first and second discharge chambes, process the path that liquid is flowed through, form a pinion unit receiving chamber to engage with first discharge chambe, in first discharge chambe, accommodate first plunger, close a path control hole to cover first discharge chambe, in second discharge chambe, accommodate one second plunger and a spring, fix a control screw element to seal second discharge chambe, in pinion unit receiving chamber, accommodate a pinion unit, so that this pinion unit is engaged with a tooth bar of first plunger, and a rod member is installed on the pinion unit.
But rotary oil damper commonly used comprises first and second discharge chambes, and this has increased overall dimensions.In addition, plunger is installed respectively in first and second discharge chambes.The quantity of parts increases and makes manufacture process more complicated.
In addition, in rotary oil damper commonly used, in the whole ON/OFF portion of lid etc., all must produce damping force.In the damping force applying unit, always produce same damping force, this makes that the ON/OFF of lid is difficult relatively.And this lid is ON/OFF fully.
In above damper, each assembly is to be assembled to damper after injection oil, thereby causes the leakage of oil in the assembling process.So assembling process complexity of damper.
Summary of the invention
Therefore, an object of the present invention is to provide a kind of rotary oil damper, it is divided into the several sections that wherein produces different damping power by the closed portion with lid makes user's closing cap easily.
Another object of the present invention provides a kind of rotary oil damper, and it can obtain the target damping force by the inside leakage that prevents oil in the damping work.
Another purpose of the present invention provides a kind of rotary oil damper, and it can be simplified the injection of oil and can improve the productivity ratio of assembling.
For realize described and other advantage and according to purpose of the present invention, as concrete in this institute and widely as described in, a kind of rotary oil damper is provided, it comprises: one has a chamber and an open dampener body of an end that wherein is filled with oil; One is rotatably installed in the dampener body and has the rotating shaft that a pair of and the interior perimeter surface of dampener body contacted and the chamber of dampener body was divided into two-part flank; First demarcation strip that inserts dampener body, the circular-arc oily path that a pair of valve opening and a pair of oil flow through forms on first demarcation strip, and what form in the both sides of first demarcation strip is connected with oily path and circular-arc groove that its degree of depth reduces gradually; Second demarcation strip that is installed in the pre-face of first demarcation strip forms an oil circuit between first demarcation strip and second demarcation strip; Be installed in the flap valve that dampener body inside is used for the described a pair of valve opening of ON/OFF; And lid that is installed on the dampener body in order to sealing.
Dampener body forms the cylindrical of one one side opening, have a plurality of bolt hole dampener body being fixed on the carriage on the fixed body forming one on the outer surface of dampener body, and on the bottom surface of dampener body, form a jointed shaft that is used for rotatably mounted rotating shaft.
Be formed for the oil supplying hole of a chamber fuel feeding in dampener body on the bottom surface of dampener body, the screw that will be used to seal oil supplying hole is tightened on this oil supplying hole.
Form one in the lower end of rotating shaft and rotatably overlap hinged mouthful that is inserted on the jointed shaft, form a linkage unit that is connected with a rotary body in the upper end of rotating shaft, and the flank that on the outer surface of rotating shaft, forms 180 ° at a pair of interval.
At these two ends the contact mat that contacts with the interior perimeter surface of dampener body is installed, but the contact surface of the contact mat that contacts with the interior perimeter surface of dampener body is curved surface and is formed with holddown groove so that on the two ends of contact mat sleeve flank to flank.
On first demarcation strip, form the valve opening of the ball insertion of flap valve with one 180 ° interval, be formed in the both sides of these two valve openings and week upwards be circular-arc oily path, and the degree of depth in the end grooves of oily path upwards reduced gradually in week, and described groove comprises the neck unit that width reduces.
It is plate shaped that second demarcation strip forms a circle, forms a rotating shaft at the middle part of second demarcation strip and pass wherein through hole, and circumferentially form a plurality of supporting convex in the upper edge, bottom surface of second demarcation strip, to form oil circuit between first and second demarcation strips.
Flap valve comprises: insert the ball that is used for the ON/OFF valve opening in a pair of valve opening that is formed on first demarcation strip; The valve body that forms on dampener body, described ball insert in the valve body to move along last/following direction; And be installed in the spring that is used for described ball is applied a predetermined elastic force in the valve body.
Above and other objects of the present invention, feature, aspect and advantage will be by becoming more obvious below in conjunction with the accompanying drawing detailed description of the invention.
Description of drawings
Included be used to provide the present invention is further understood and shows embodiments of the invention and together be used to illustrate principle of the present invention with manual in conjunction with constituting its a part of accompanying drawing in this manual.
In the drawings:
Fig. 1 is a phantom drawing of representing rotary oil damper according to a preferred embodiment of the present invention;
Fig. 2 and Fig. 3 are the decomposition diagrams of the rotary oil damper of expression preferred embodiment according to the present invention;
Fig. 4 and Fig. 5 are the vertical sectional view of the rotary oil damper of expression preferred embodiment according to the present invention;
Fig. 6 is the sectional view of expression along the line IV-IV of Fig. 4;
Fig. 7 is the sectional perspective view of dampener body of the rotary oil damper of expression preferred embodiment according to the present invention;
Fig. 8 is the elevation of rotating shaft of the rotary oil damper of expression preferred embodiment according to the present invention;
Fig. 9 is the zoomed-in view of the part A of presentation graphs 8;
Figure 10 is the sectional view of expression along the line V-V of Fig. 4;
Figure 11 is the vertical view of first demarcation strip of the rotary oil damper of expression preferred embodiment according to the present invention;
Figure 12 is the upward view of first demarcation strip of the rotary oil damper of expression preferred embodiment according to the present invention;
Figure 13 is the sectional view of first demarcation strip of the rotary oil damper of expression preferred embodiment according to the present invention;
Figure 14 is the sectional view of expression along the line VI-VI of Fig. 4;
Figure 15 is the lateral view that the rotary oil damper of expression preferred embodiment according to the present invention is applied to the state of a G.P type rotary body;
Figure 16 A to 16D is the diagram of duty of a G.P type rotary body that adopts the rotary oil damper of expression preferred embodiment according to the present invention;
Figure 17 is the lateral view that the rotary oil damper of expression preferred embodiment according to the present invention is applied to the state of reinforcing (consol) type rotary body;
Figure 18 A to 18D represents to adopt the diagram of duty of reinforcement type rotary body of the rotary oil damper of preferred embodiment according to the present invention;
Figure 19 represents that the rotary oil damper of preferred embodiment according to the present invention is applied to the lateral view of the state of a U.P type rotary body;
Figure 20 A to 20D represents to adopt the diagram of duty of a U.P type rotary body of the rotary oil damper of preferred embodiment according to the present invention;
Figure 21 A to 21D represents the diagram of duty of the rotary oil damper of preferred embodiment according to the present invention;
The decomposition diagram of Figure 22 and 23 expressions rotary oil damper according to another embodiment of the present invention;
The sectional view of Figure 24 and 25 expressions rotary oil damper according to another embodiment of the present invention; And
Figure 26 represents along the sectional view of the line VII-VII of Figure 24.
The specific embodiment
Now will be in detail with reference to the preferred embodiments of the present invention, its example is shown in the drawings.
Describe one in detail according to rotary oil damper of the present invention with reference to accompanying drawing.
Fig. 1 represents the phantom drawing according to rotary oil damper of the present invention, Fig. 2 and 3 expressions are according to the decomposition diagram of rotary oil damper of the present invention, Figure 4 and 5 are represented the vertical sectional view according to rotary oil damper of the present invention, and Fig. 6 represents along the sectional view of the line IV-IV of Fig. 4.
This rotary oil damper comprises a dampener body 10 that is filled with the space of oil that has that is installed on the fixed body, one rotatably is contained in the dampener body 10 and is installed in rotating shaft 12 on the rotary body, with one be installed in the dampener body 10 changing the damping force control module of rotating shaft 12 and lid that is used to seal 14 that is installed on the dampener body 10 in the damping force in each stage.
Fig. 7 represents the sectional perspective view according to dampener body of the present invention.
This dampener body 10 forms the cylindrical of one one side opening.Be fixed with on it and cover 14 internal thread unit 16 and form, and of forming in a side of dampener body 10 has a plurality of fixed mounts 20 that are used for dampener body 10 is fixed on the bolt hole 18 on the described fixed body in the entrance of the opening of dampener body 10.Jointed shaft 22 that is used for rotatably mounted rotating shaft 12 and one are used for forming on the bottom surface of dampener body 10 to the oil supplying hole 24 of dampener body 10 fuel feeding.
A screw 26 that is used for sealing oil supplying hole 24 is tightened on oil supplying hole 24.O shape encircle 28 sleeves on screw 26 to obtain tightness.
Fig. 8 represents the elevation according to rotating shaft of the present invention, and the zoomed-in view of the part A of Fig. 9 presentation graphs 8.
This rotating shaft 12 has a predetermined length.Form rotatably hinged a mouthful 30 on the jointed shaft 22 of sleeve in dampener body 10 at the downside of rotating shaft 12, and form one from covering 14 linkage units 32 that stretch out and be connected with rotary body at the upside of rotating shaft 12.In addition, the interval with 180 ° on the outer surface of rotating shaft 12 forms two flanks 34, and on flank 34 contact mat 36 that contacts with the interior perimeter surface of dampener body 10 is installed.
A lining 38 inserts between hinged mouth 30 and the jointed shaft 22, so that the frictional force minimum of rotating shaft 12 in rotation.Preferably, lining 38 is made by a kind of synthetic resin.Flat board all is cut on two surfaces of linkage unit 32.With after rotary body is connected, these linkage unit 32 anti-sliding stops.
As shown in Figure 9, contact mat 36 forms a curve shape so that the contact surface 46 that contacts with dampener body 10 can contact so that seal with the interior perimeter surface of dampener body 10.Flank 34 insert wherein binding groove 40 with contact surface 46 facing surfaces on form.
On two sides of binding groove 40, form clasp joint groove 44, and on two sides of flank 34, form clasp joint projection 42.The clasp joint projection of flank 34 is inserted in the clasp joint groove 44, is connected to stop contact mat 36 to break away from flank 34.Here, the radial width of clasp joint groove 44 is greater than the width of clasp joint projection 42, and therefore the clasp joint projection of inserting in the clasp joint groove 44 42 can move diametrically.
The damping force control module comprises: one is installed in the part in oily space is filled out in dampener body 10 inside with formation first demarcation strip 50, and the end face of flank 34 contacts with first demarcation strip 50 with sealing, forms a pair of valve opening 60 on first demarcation strip 50; On end face that is installed in first demarcation strip 50 to form second demarcation strip 52 of the oil circuit 82 that oil flows therein; And be installed in the dampener body 10 flap valve 54 with the valve opening 60 on ON/OFF first demarcation strip 50.
Figure 10 represents that Figure 11 represents the vertical view according to first demarcation strip of the present invention along the sectional view of the line V-V of Fig. 4, and Figure 12 represents the upward view according to first demarcation strip of the present invention, and Figure 13 represents the sectional view according to first demarcation strip of the present invention.
On first demarcation strip 50, form the ball 56 insertions valve opening 60 wherein of flap valve 54 with 180 ° interval.Form in the both sides of two valve openings 60 a pair of oil flow through wherein at the oily path 64 that upwards is circular arc week.Be formed on the little groove 66 of depth minus that makes progress in week in the end of oily path 64.The neck unit 68 that width reduces forms in the end of groove 66.
On the outer surface of first demarcation strip 50, form locating slot 70, and on the interior perimeter surface of dampener body 10, form positioning convex 72.In the assembling process of first demarcation strip 50, the installation site of first demarcation strip 50 can accurately be controlled by positioning convex 72 is inserted in the locating slot 70.
As shown in figure 11, preferably, angle O between the end of one side of the center of valve opening 60 and oily path 64 is made as 20 °, and the angle P between the two ends of oily path 64 is made as 41 °, the end and the angle Q between the neck unit 68 of one side of the groove 66 that begins to extend from oily path 64 are made as 70 °, and the angle R between the other end of neck unit 68 and groove 66 is made as 19 °.
Here, as shown in figure 13, the degree of depth of groove 66 begins upwards to reduce in week in the end from oily path 64.
Figure 14 represents along the sectional view of the line VI-VI of Fig. 4.
It is plate shaped that second demarcation strip 52 forms a circle, on the end face that is installed in first demarcation strip 50.In second demarcation strip 52, be formed centrally a rotating shaft 12 and pass wherein through hole 80, and on the bottom surface of second demarcation strip 52, upwards form a plurality of supporting convex 84, between first demarcation strip 50 and second demarcation strip 52, to form oil circuit with predetermined space in week.
Middle top at second demarcation strip 52 forms one first cannelure 88, install one on this cannelure and be used to prevent first seal 86 of oil from revealing between through hole 80 and the rotating shaft 12, and form one second cannelure 92 in the top of second demarcation strip 52, install one on this cannelure and be used to prevent second seal 90 of oil from revealing between the interior perimeter surface of the edge of second demarcation strip 52 and dampener body 10.
Lining 100 is installed in and covers on 14 the interior perimeter surface, thereby rotating shaft 12 can be slided.Downside at lining 100 forms a flange unit 102, so that first seal 86 abuts on first cannelure 88.By covering 14 bottom surface second seal 90 is abutted on second cannelure 92.
This valve body 112 forms extend in vertical direction from the bottom surface of dampener body 10 cylindrical, thus ball 56 can be inserted in the valve bodies 112 with last/below move up.Side at valve body 112 forms the open cells of connecting with the chamber 118 of dampener body 10 120.In two valve bodies 112 any one all with the bottom surface that is formed on dampener body 10 on oil supplying hole 24 be connected.
Explanation is according to the assembling process of rotary oil damper of the present invention now.
When flank 34 is inserted the binding groove 40 of contact mats 36, be formed at clasp joint projection 42 clasp joints on the flank 34 on the clasp joint groove 44 that is formed on the binding groove 40, be connected with flank 34 disengagings to prevent contact mat 36.
When on the end face that second demarcation strip 52 is placed on first demarcation strip 50, the supporting convex 84 of second demarcation strip 52 contacts with the end face of first demarcation strip 50, thereby forms the oil circuit 82 that oil flows through between first demarcation strip 50 and second demarcation strip 52.
After this, first seal 86 is inserted in first cannelure 88 that is formed on second demarcation strip, 52 end faces, second seal 90 is inserted in second cannelure 92, the lid 14 that wherein is inserted with lining 100 is tightened on the dampener body 10.The flange unit 102 of lining 100 abuts on first seal 86, abuts on second seal 90 and cover 14 interior perimeter surface, to keep tightness.
After the rotary oil damper assembling is finished, by fuel feeding in the chamber 118 of oil supplying hole 24 in dampener body 10.After fuel feeding is finished, there is the screw 26 of O shape ring 28 to be fastened on the oil supplying hole 24 its upper sleeve, with sealing oil supplying hole 24.
As mentioned above, after whole component-assembled of damper are finished, oil is injected into chamber 118.Therefore, oil can not revealed in assembling process, and has simplified the assembling of damper.
Explanation now is installed in rotary oil damper according to the present invention the process in fixed body and the rotary body.
Figure 15 represents according to the present invention rotary oil damper to be applied in the lateral view of the state of a G.P type rotary body, and Figure 16 A to 16D represents to adopt the duty view according to rotary oil damper G.P type rotary body of the present invention.
By bolt 3 fixed mount 20 of dampener body 10 is fixed on a side of fixed body 1, and is fixed on the carriage 4 that is installed in G.P type rotary body 2 one sides by the linkage unit 32 of bolt 7 with rotating shaft 12.
Figure 17 represents according to the present invention rotary oil damper is applied to a lateral view of reinforcing the state of (consol) type rotary body, and Figure 18 A to 18D represents to adopt the view according to the duty of the reinforcement type rotary body of rotary oil damper of the present invention.
The fixed mount 20 of dampener body 10 is fixed on a side of fixed body 1 by bolt 3, and be fixed on the carriage 8 that is installed in reinforcement type rotary body 9 one sides by the linkage unit 32 of bolt 7 with rotating shaft 12, an end of rotary body 9 rotatably is hinged on the supporting mass 11.
Figure 19 represents according to the present invention rotary oil damper to be applied to the lateral view of the shape of a U.P type rotary body, and Figure 20 A to 20D represents to adopt the view according to the duty of the U.P type rotary body of rotary oil damper of the present invention.
The fixed mount 20 of dampener body 10 is fixed on a side of fixed body 1 by bolt 3, and be fixed on the carriage 15 that is installed in U.P type rotary body 13 1 sides by the linkage unit 32 of bolt 7 with rotating shaft 12, rotary body 13 connects with a supporting mass 11 by a jointed shaft 17.
Each rotary body 2,9 and 13 has different relative angles between the flank 34 of linkage unit 32 and rotating shaft 12, but carries out the damping operation in an identical manner.The damping operation that explanation now is commonly used.
Figure 21 A to 21D represents the duty view according to rotary oil damper of the present invention.
Figure 21 A represents the position when rotary body 2 rotating shaft 12 when a level is closed.The flank 34 of rotating shaft 12 is arranged to contact with the sidepiece of valve body 112.
In this state, when the rotary body 2 that is connected with rotating shaft 12 was lifted, rotating shaft 12 beginnings were rotated in edge direction forward.The chamber 118 of dampener body 10 that is filled with oil is separated into one, and wherein first chamber 130 that compressed by flank 34 of oil and one wherein produce second chamber 132 of a negative pressure on the opposite side of the direction of rotation of flank 34.
That is, when flank 34 began to rotate, the oil that is filled in first chamber 130 was compressed, and produced a negative pressure in second chamber 132.
In addition, since the rotation of flank 34 and in first chamber 130 compressed oil flow to oil circuit 82 by oily path 64.Here, valve opening 60 overcomes the elastic force of spring 114, and ball 56 is separated by the negative pressure that is applied to the oil pressure on the oil circuit 82 and produce in second chamber 132.Thus, valve opening 60 is opened, and the oil in the oil circuit 82 flows to second chamber 132 by valve opening 60, thereby the pressure between first demarcation strip 50 and second demarcation strip 52 is level (horizontal), can not produce damping force.
When rotary body 2 was crossed plumbness, even the user does not hold rotary body 2, rotary body 2 also can be pulled rearward because of deadweight.Surpass 90 ° if rotary body 2 continues rotation through the upright position, flank 34 and oily path 64 overlap and move.The cross-sectional area of oil path 64 reduces gradually along with the rotation of flank 34.Therefore, the oil in being filled in first chamber 130 produces a flow resistance during by oily path 64.Because the cross-sectional area of oily path 64 reduces gradually along with the rotation of flank 34, this flow resistance increases.That is, when rotary body 2 continued rotation and surpasses 90 °, because the flow resistance of the oil of the oily path 64 of flowing through, damping force increased gradually, thereby had absorbed the impact in the opening operation of rotary body 2.
When rotary body 2 being rotated to when closing, flank 34 is along backward directions rotation.Opposite with the opening operation of rotary body 2, the oil in second chamber 132 is compressed by the thrust of flank 34, and produces a negative pressure in first chamber 130.
Compressed oil flows to oil circuit 82 by oily path 64 in second chamber 132, and the oil of oil circuit 82 flows to first chamber 130 by valve opening 60, and therefore the pressure between first and second demarcation strips 50 and 52 is level (horizontal).Therefore, in the rotation of rotary body 2, do not produce damping force.
Here, be installed in ball 56 on the valve opening 60 owing to the negative pressure that acts on oil pressure on the oil circuit 82 and produce in first chamber 130 overcomes the elastic force of spring 114, and separate with valve opening 60.Therefore valve opening 60 is opened.
The user is as long as the rotary body 2 that the weight and closing of operation rotary body 2 is pulled to the upright position, and is closed rotary body 2 thus easily.
After this, when rotary body 2 by plumbness, even the user does not haul (operation) rotary body 2, rotary body 2 also can be owing to deadweight continues to close.Here, damping force is applied on the rotary body 2 gradually.Only before the shutoff operation of rotary body 2, provide big damping force, prevent from thus to impact.
In more detail, when flank 34 continued rotation through oily path 64, compressed oil flowed to first chamber 130 by groove 66 in second chamber 132.Because the degree of depth of groove 66 from 64 beginnings of oily path away from direction on reduce gradually, the flow resistance of the oil by groove 66 increases gradually, also therefore damping force increases gradually.
Here, owing to flow to the pressure of oil of first chamber 130 or the elastic force of spring 114 by groove 66, ball 56 abuts on the valve opening 60 and close valve orifice 60.Therefore, oil can not flow through valve opening 60, but the oil of second chamber 132 flows to first chamber 130 by groove 66.
When flank 34 arrives neck unit 68, the position before promptly rotary body 2 is closed just, the width of neck 68 sharply reduces.Therefore, the flow resistance that flows through the oil of neck 68 sharply increases, and therefore flank 34 is stopped by instantaneous.By after the neck unit 68, oil flows through groove 66, thereby produces a damping force littler than the damping force of neck unit 68 at flank 34.
As mentioned above, rotary body 2 was stopped by instantaneous before closing, and was not steadily closed thus with impacting.
The decomposition diagram of Figure 22 and 23 expressions rotary oil damper according to another embodiment of the present invention, sectional view and Figure 26 of Figure 24 and 25 these rotary oil dampers of expression represent along the sectional view of the line VII-VII of Figure 24.
Except being used for applying an elastic force so that open easily the elastic force bringing device of rotary body 2 to rotary body 2, the structure of this rotary oil damper is identical with rotary oil damper according to the first embodiment of the present invention.
This elastic force bringing device comprises a torsionspring 150 that is wound on the jointed shaft 22 that stretches out from the bottom surface of dampener body, be used for when rotating shaft 12 is rotated in one direction, applying an elastic force to rotating shaft 12, the end of this spring one side is fixed on the dampener body 10, and the end of opposite side is fixed in the rotating shaft 12.
On jointed shaft 22, form a fixed arm 154 and inserts wherein first holddown groove 158 regularly, and moveable arm 156 of formation inserts wherein second holddown groove 160 regularly in rotating shaft 12.
A lining that is used for rotatably mounted rotating shaft 12 162 that forms highlyer than the width of winder unit 152 is to be installed on the jointed shaft 22.
According to another embodiment of the invention, when rotary body 2 rotates to when opening, the rotating shaft 12 that is connected with rotary body 2 is rotated.
The winder unit 152 of coiling jointed shaft 22 is by unwinding, thereby applies elastic force on the direction of rotation of rotating shaft 12, thereby applies elastic force to rotary body 2.Therefore the user can open rotary body 2 easily.
As described earlier, according to the present invention, before rotary body arrives the upright position, can not produce damping force.Therefore, rotary body can be opened easily.When rotary body is pulled rearward movingly when surpassing 90 ° in the upright position, damping force produces gradually in rotary body and increases, and is finally opened up to rotary body.Therefore, rotary body can be opened lentamente and do not impacted.
In addition, when rotary body is closed, before rotary body arrives the upright position, can not produce damping force.Therefore, rotary body can be closed easily.When rotary body was closed to less than 90 °, damping force increased gradually slowly to close rotary body.Therefore, rotary body can be closed easily and do not impacted.
Because the present invention can not break away from its spirit or principal character with several forms enforcements, so it should also be understood that, unless otherwise indicated, the above embodiments are not limited by aforesaid any details, and should separate as wide in range geography in the spirit and scope defined in the appended claims, therefore, all fall into the boundary of claim and scope or with the boundary and the variation in the scope of described boundary and scope equivalence with revise and all should be contained by appending claims.
Claims (24)
1. rotary oil damper comprises:
One has a chamber and an open dampener body of an end that is filled with oil;
Rotating shaft in dampener body of rotatably packing into, this rotating shaft has a pair of chamber with dampener body that contacts with the interior perimeter surface of described dampener body and is divided into two-part flank;
First demarcation strip that inserts in the dampener body forms the circular arc oil path that a pair of valve opening and a pair of oil pass through, the groove of the circular arc that the degree of depth that is connected with oily path that forms in the both sides of described first demarcation strip reduces gradually on described first demarcation strip;
Second demarcation strip that is installed on the described first demarcation strip end face forms an oil circuit between described first demarcation strip and second demarcation strip;
Be installed in described dampener body inside and be used for the right flap valve of the described valve opening of ON/OFF; With
One is installed in the lid in order to seal on the described dampener body.
2. according to the rotary oil damper of claim 1, it is characterized in that, it is cylindrical that one one end of described dampener body formation is opened, on described dampener body outer surface, form one and have a plurality of bolt hole described dampener body being fixed on the carriage on the fixed body, and on described dampener body bottom surface, form a jointed shaft that is used for rotatably mounted described rotating shaft.
3. according to the rotary oil damper of claim 2, it is characterized in that, on the bottom surface of described dampener body, form an oil supplying hole that is used for the chamber fuel feeding of dampener body, and one is used to seal the screw of described oil supplying hole at described oil supplying hole.
4. according to the rotary oil damper of claim 2, it is characterized in that, form the rotatably hinged mouth of sleeve on jointed shaft in the lower end of described rotating shaft, upper end in described rotating shaft forms a linkage unit that is connected with a rotary body, and the interval with 180 ° forms pair of ribs on described rotating shaft outer surface.
5. according to the rotary oil damper of claim 4, it is characterized in that, between described jointed shaft and hinged mouth, insert a lining.
6. according to the rotary oil damper of claim 4, it is characterized in that the contact mat that contacts with the interior perimeter surface of described dampener body is installed in the right end of described flank.
7. according to the rotary oil damper of claim 6, it is characterized in that the contact surface of the contact mat that contacts with the interior perimeter surface of described dampener body is curved surface and is formed with binding groove, but so that described contact mat sleeve in the end of flank.
8. according to the rotary oil damper of claim 7, it is characterized in that, form the clasp joint groove, and form the clasp joint projection of clasp joint clasp joint groove in the both sides of described flank in the both sides of described binding groove.
9. according to the rotary oil damper of claim 1, it is characterized in that described first demarcation strip forms a circular tabular with in the interior perimeter surface of inserting dampener body, and is formed centrally the through hole that a described rotating shaft is passed in described first demarcation strip.
10. according to the rotary oil damper of claim 1, it is characterized in that, on described first demarcation strip, form the ball insertion valve opening wherein of described flap valve with 180 ° interval, be formed on the oily path that week upwards is circular arc in the both sides of two valve openings, and little at the described groove of oily tunnel end in the depth minus that makes progress in week.
11. the rotary oil damper according to claim 10 is characterized in that, forms the neck unit that width reduces in described groove.
12. rotary oil damper according to claim 11, it is characterized in that, angle between described valve opening center and described oily path one side end is 20 °, angle between the oil path both side ends is 41 °, one side end and the angle between the described neck unit of the described groove that stretches out from oily path are 70 °, and the angle between the end side of described neck and described groove is 19 °
13. the rotary oil damper according to claim 9 is characterized in that, forms locating slot on the outer surface of described first demarcation strip, and forms the positioning convex that inserts in the described locating slot on the inner surface of described dampener body.
14. rotary oil damper according to claim 1, it is characterized in that, described second demarcation strip forms the plate shaped of a circle, middle part at described second demarcation strip forms the through hole that described rotating shaft is passed, and at a plurality of supporting convex of the circumferential formation in the upper edge, bottom surface of described second demarcation strip, between described first and second demarcation strips, to form described oil circuit.
15. rotary oil damper according to claim 14, it is characterized in that, middle top at described second demarcation strip forms one first cannelure, be used to prevent first seal of oil being equipped with one on this cannelure from revealing between described through hole and the described rotating shaft, and form one second cannelure in the top of described second demarcation strip, be equipped with one on this cannelure and be used to prevent second seal of oil from revealing between the interior perimeter surface of the edge of described second demarcation strip and described dampener body.
16. the rotary oil damper according to claim 1 is characterized in that, forms the through hole that rotating shaft is passed at the middle part of described lid, at the instrument insertion groove that upwards is formed for the instrument that inserts week of lid, and on the perimeter surface lining is installed in lid.
17. the rotary oil damper according to claim 1 is characterized in that, described flap valve comprises:
Be inserted in a pair of valve opening that forms on described first demarcation strip ball with the ON/OFF valve opening;
The valve body that on described dampener body, forms, described ball insert in the described valve body with last/below move up; With
Pack into and be used for described ball is applied the spring of a predetermined elastic force in the described valve body.
18. rotary oil damper according to claim 17, it is characterized in that, described valve body forms vertically stretch out from the bottom surface of described dampener body cylindrical, form the open cells of connecting with the chamber of dampener body in a side of valve body, and in two valve bodies any one is connected with the oil supplying hole that forms all on the bottom surface of dampener body.
19. the rotary oil damper according to claim 1 is characterized in that, also comprises an elastic force bringing device that is used for applying to described rotating shaft an elastic force when the direction rotation is opened on the rotary body edge.
20. rotary oil damper according to claim 19, it is characterized in that, described elastic force bringing device comprises a torsionspring that is wound on the jointed shaft that protrudes from the bottom surface of described dampener body, when the direction rotation is opened on the rotary body edge, to apply an elastic force to described rotating shaft, one end of this spring is fixed on the dampener body, and its other end is fixed in the rotating shaft.
21. rotary oil damper according to claim 20, it is characterized in that, described torsionspring comprise an outer surface at jointed shaft at several circles of upwards reeling in week on unreeling direction, to apply the winder unit of an elastic force, a fixed arm that is connected with a side end on the interior perimeter surface that is arranged on winding and is fixed on the jointed shaft, and a moveable arm that is connected with the end side that the winder unit outer surface is set and is fixed in the rotating shaft.
22. rotary oil damper according to claim 21, it is characterized in that, on described jointed shaft, form first holddown groove that described fixed arm inserts regularly, and in described rotating shaft, form second holddown groove that described moveable arm inserts regularly.
23. the rotary oil damper according to claim 22 is characterized in that, described first holddown groove forms on diametric(al) to pass the center of described jointed shaft.
24. the rotary oil damper according to claim 22 is characterized in that, described second holddown groove forms on the inner surface of the flank of described rotating shaft.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR0102270/2003 | 2003-12-31 | ||
| KR1020030102270A KR100494651B1 (en) | 2003-12-31 | 2003-12-31 | Rotary type oil damper |
| KR1020040058400A KR100580588B1 (en) | 2004-07-26 | 2004-07-26 | Rotary type oil damper |
| KR0058400/2004 | 2004-07-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1637225A true CN1637225A (en) | 2005-07-13 |
| CN1280512C CN1280512C (en) | 2006-10-18 |
Family
ID=34863605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410080833 Expired - Fee Related CN1280512C (en) | 2003-12-31 | 2004-10-09 | Rotary oil damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1280512C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102844515A (en) * | 2009-08-26 | 2012-12-26 | 禹生允 | Automatic door closure unit |
| CN101379262B (en) * | 2005-12-21 | 2013-03-20 | 博泽（科堡）汽车零件有限公司 | Method and device for controlling the closing movement of a chassis component for vehicles |
| CN104234564A (en) * | 2014-05-19 | 2014-12-24 | 赖世华 | Rotary one-way hydraulic buffer and large pot |
| JP2015034598A (en) * | 2013-08-09 | 2015-02-19 | トックベアリング株式会社 | Torque automatic adjusting type rotary damper |
| CN105008645A (en) * | 2013-03-04 | 2015-10-28 | 世嘉智尼工业株式会社 | Opening/closing device |
| CN107191085A (en) * | 2017-06-26 | 2017-09-22 | 济南大学 | A kind of door buffer |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI650270B (en) * | 2017-12-29 | 2019-02-11 | 日馳企業股份有限公司 | Bicycle derailleur |
-
2004
- 2004-10-09 CN CN 200410080833 patent/CN1280512C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101379262B (en) * | 2005-12-21 | 2013-03-20 | 博泽（科堡）汽车零件有限公司 | Method and device for controlling the closing movement of a chassis component for vehicles |
| CN102844515A (en) * | 2009-08-26 | 2012-12-26 | 禹生允 | Automatic door closure unit |
| CN102844515B (en) * | 2009-08-26 | 2015-08-19 | 禹生允 | Automatic door plate closed cell |
| CN105008645A (en) * | 2013-03-04 | 2015-10-28 | 世嘉智尼工业株式会社 | Opening/closing device |
| CN105008645B (en) * | 2013-03-04 | 2017-03-22 | 世嘉智尼工业株式会社 | Opening/closing device |
| JP2015034598A (en) * | 2013-08-09 | 2015-02-19 | トックベアリング株式会社 | Torque automatic adjusting type rotary damper |
| CN104234564A (en) * | 2014-05-19 | 2014-12-24 | 赖世华 | Rotary one-way hydraulic buffer and large pot |
| CN107191085A (en) * | 2017-06-26 | 2017-09-22 | 济南大学 | A kind of door buffer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1280512C (en) | 2006-10-18 |
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