CN201174845Y - Pivot device - Google Patents
Pivot device Download PDFInfo
- Publication number
- CN201174845Y CN201174845Y CNU2007200579151U CN200720057915U CN201174845Y CN 201174845 Y CN201174845 Y CN 201174845Y CN U2007200579151 U CNU2007200579151 U CN U2007200579151U CN 200720057915 U CN200720057915 U CN 200720057915U CN 201174845 Y CN201174845 Y CN 201174845Y
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- CN
- China
- Prior art keywords
- damping
- pivot device
- damping body
- trunk portion
- sliding cam
- 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
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Abstract
The utility model discloses a hinge device, comprising a hinge device main body and a damper, wherein the damper and the hinge device are arranged coaxially, the damper comprises a damping housing, a damping body, a clamping ring, a plurality of rotor plates, a plurality of rotation limiting plates, a rotating body capable of pushing the damping body to rotate and a sealing ring, wherein the damping housing has a tube body part, a tube top part and a shaft hole passing through the tube top part; the damping body has a cylinder body part arranged inside the tube body part and a connecting part extending from one end of the cylinder body part, the other end of the cylinder body part passes out of the shaft hole; the clamping ring is clamped at one end of the cylinder body part passing out of the shaft hole and is pressed against on the tube top part; the rotor plates are arranged inside the tube body part and are clamped and sleeved on the cylinder body part, the rotation limiting plates are sleeved on the cylinder body part alternatively and at intervals, and are clamped inside the tube body part; and the sealing ring is sealed between the connecting part and the damping housing, and damping oil is sealed among the sealing ring, the damping housing and the damping body. The electronic product using the hinge device hardly produces vibration when opened and folded, thereby better protecting the electronic product.
Description
Affiliated technical field
The utility model relates to a kind of pivot device, particularly relates to a kind of pivot device that is mainly used on the folding electronic products such as mobile phone, DV, digital camera.
Background technology
The electronic product that has a video/audio function as mobile phone, electronic dictionary, PDA, MP4 etc. has obtained using widely in recent years.For making these electronic product display images try one's best clear so that watch require that its display interface tries one's best big, however little for what be convenient for carrying and require its volume to try one's best.Require big and the little contradiction of volume requirement for solving display interface, these electronic products are designed to the pattern that two parts fold usually, and two parts of electronic product generally connect by pivot device.
The structure of existing a kind of pivot device as shown in Figure 1, this pivot device comprises housing 3 ', the place, one end of housing 3 ' is provided with rotating cam 60 ', and housing 3 ' inside is equipped with sliding cam 50 ' slidably, and the pressing spring 4 ' that is resisted against sliding cam 50 ' also is housed in the housing 3 '.Have pushed section 61 ' on the described rotating cam 60 ', the end face of sliding cam 50 ' has the circumferential sliding cam curved surface of being made up of ascent stage curved surface and descending branch curved surface 51 '.This pivot device is used for the folding electronic product, electronic product two folded parts are being opened to certain angle, promptly after the 61 ' summit, pushed section of rotating cam 60 ' slips over the peak of sliding cam 50 ' upward sliding cam curved surface 51 ', even stop this moment firmly, because the turning effort that pressing spring 4 ' and sliding cam curved surface 51 ' produce pushed section 61 ', electronic product still can be opened automatically.
But under the turning effort that pressing spring 4 ' and sliding cam curved surface 51 ' produce pushed section 61 ', the speed that electronic product is opened can be more and more faster, thereby can produce impact between two folded parts of electronic product and cause vibrations when opening fully.Two folded parts of electronic product the more and more faster situation of reduced velocity also can occur when amounting to, thereby also can produce impact and cause vibrations.This vibrations can produce harmful effect to the electronic product self performance on the one hand, if the user is careless on the other hand, electronic product also may drop from user's hand.
The utility model content
The purpose of this utility model is to provide a kind of pivot device that can avoid electronic product to open and produce when amounting to impulsive force at the defective that above-mentioned prior art exists.
For achieving the above object, pivot device that the utility model provides comprises a pivot device main body and a damper.Damper and the coaxial setting of pivot device main body, this damper comprises: a damping shell, this damping shell has columnar barrel and reaches the tube top that vertically extends internally and form from an end of this barrel, and the middle part at this top offers the axis hole at this top of up/down perforation; One damping body, this damping body have one and place the trunk portion in the barrel to reach from the extended connecting portion of trunk portion one end, and the other end of trunk portion passes the axis hole at a top; One snap ring, this snap ring are stuck on the end of the axis hole that passes a top of trunk portion and replace on the tube top; Several rotors, these several rotors place the interior also cutting ferrule of barrel on the trunk portion of damping body; Several limit rotor, on the trunk portion that is enclosed within damping body of this several staggered setting at interval of limit rotor and rotor and be placed in the barrel; One can promote turning of damping body rotation; One sealing ring, sealing circle are sealed between the connecting portion and damping shell of damping body; Wherein, between sealing circle, damping shell and damping body, be sealed with damping oil.
In sum; the utility model is because pivot device drives damping body and the rotor rotation that is fastened on the damping body by turning; thereby damping body and rotor promote to be sealed in sealing ring with respect to the damping shell with the rotation of limitting rotor; damping oil between damping body and the damping shell; and then the viscous damping effect that utilizes damping oil suppresses that electronic product is opened or the closed more and more faster trend of speed makes it reach a kind of slowly to open stably or closure state; therefore make electronic product two folded parts open or produce hardly when closed vibrations fully; so the utility model pivot device can be protected electronic product better, also make electronic product use comfortable and can avoid from hand, dropping.
Description of drawings
In Figure of description:
Fig. 1 is a kind of three-dimensional exploded view of existing pivot device.
Fig. 2 is the stereogram of the utility model pivot device, is show internal structure, and wherein damping shell and housing carried out biopsy cavity marker devices.
Fig. 3 is the three-dimensional exploded view of pivot device shown in Fig. 2.
Fig. 4 is the stereogram of damping shell shown in Fig. 3.
Fig. 5 is the stereogram of another angle of damping shell shown in Fig. 4.
Fig. 6 is the stereogram of damping body shown in Fig. 3.
Fig. 7 is the stereogram of rotor shown in Fig. 3.
Fig. 8 is the stereogram of the rotor of limit shown in Fig. 3.
The stereogram of Fig. 9 for turning shown in Fig. 3.
Figure 10 is the stereogram of another angle of turning shown in Fig. 9.
The description of reference numerals of each assembly is as follows among the figure:
Housing 3 ' pressing spring 4 '
Sliding cam 50 ' sliding cam curved surface 51 '
Rotating cam 60 ' pushed section 61 '
Pivot device main body 1 jump ring 11
Spacing briquetting 12 axis 13
Cannelure 131 heads 132
Pressing spring 15 sliding cams 16
Sliding cam curved surface 161 limits are changeed plane 162
Rotating cam 17 contiguous blocks 171
Pushed section 172 axle holes 173
Shaft hole 213 projections 214
Snap-latch surface 222 ring grooves 223
Connecting portion 224 blocks 225
Inner annular recess 226 rotors 23
First lamellar body, 231 hole clippings 232
Limit rotor 24 second lamellar bodies 241
251 tops 252 of barrel
Draw-in groove 255 snap rings 26
Embodiment
By describing technology contents of the present utility model, structural feature in detail, realized purpose and effect, give explanation below in conjunction with execution mode and conjunction with figs. are detailed.
See also Fig. 2 and Fig. 3, the utility model pivot device comprises pivot device main body 1 and damper 2.Described damper 2 comprises damping shell 25, damping body 22, rotor 23, limit rotor 24, turn 21 and sealing ring 27.
See also Fig. 4 and Fig. 5, described damping shell 25 has a columnar barrel 251, and barrel 251 1 ends vertically extend internally and form a top 252, and the middle part at tube top 252 offers the axis hole 253 of up/down perforation.The barrel 251 of damping shell 25 is outwards protruded and is formed two along the damping shell 25 axially extended anti-rotation walls 254 that are centrosymmetric, and this two anti-rotations wall 254 is fixed on the electronic product to prevent that damping shell 25 from rotating.Offer a draw-in groove 255 on the anti-rotation wall 254, this draw-in groove 255 inwardly penetrates the inwall of barrel 251.
See also Fig. 5 and Fig. 6, described damping body 22 places in the damping shell 25.Damping body 22 has columniform trunk portion 221, on trunk portion 221 outer surfaces excision part form two be centrosymmetric along these trunk portion 221 axially extended snap-latch surfaces 222.The lower end of trunk portion 221 offers ring groove 223.Trunk portion 221 upper ends stretch out and form the cylindrical connecting portion 224 of a diameter greater than trunk portion 221 diameters, the formation one protruding upward of the upper surface of connecting portion 224 is the block 225 of semicircular in shape roughly, the inner annular recess 226 of inside recessed formation one annular of the lower end of connecting portion 224.
See also Fig. 3, Fig. 7 and Fig. 8, on rotor 23 and the limit rotor 24 staggered trunk portion that are set in damping body 22 221 at interval and place in the barrel 251 of damping shell 25.Rotor 23 has first lamellar body 231 that is the annulus sheet, the middle part of first lamellar body 231 offers and roughly is rectangle and dual-side is circular-arc hole clipping 232, trunk portion 221 shape of cross sections of this hole clipping 232 and damping body 22 adapt and fasten with the snap-latch surface 222 of trunk portion 221, thereby rotor 23 can rotate with damping body 22.Limit rotor 24 has the outside of second lamellar body, 241, the second lamellar bodies 241 that are the annulus sheet along outwards protruding two fixture blocks 242, and this two fixture block 242 is stuck in the draw-in groove 255 of damping shell 25, thereby limit rotor 24 relative damping shells 25 maintain static.
See also Fig. 6, Fig. 9 and Figure 10, it is 21 cylindrical to turn.Turning, an excision part forms these 21 axially extended spacing planes 211 of turning, two edges that are centrosymmetric on 21 the outer surface, offer one and penetrate 21 the screw 212 of turning on the 211 center symmetry directions of spacing plane, screw 212 can connect with electronic product by screw and cooperate so that this is turned and 21 rotates with electronic product.This is turned and offers the shaft hole 213 that runs through up and down on 21, is fan-shaped projection 214 to shaft hole 213 projecting inward formation one on the hole wall of shaft hole 213.The block 225 of damping body 22 stretches in the remaining space of shaft hole 213, rotates thereby can make projection 214 drive damping body with the cooperation of block 225 butts.
See also Fig. 2 and Fig. 3, the block 225 of connecting portion 224 upper ends of damping body 22 inserts in 21 the shaft hole 213 of turning and with projection 214 and connects, on several rotors 23 and several limit rotors 24 staggered trunk portion that are set in damping body 22 221 at interval, damping shell 25 is sleeved on the outside of damping body 22, rotor 23 and limit rotor 24.The ring groove 223 of damping body 22 is positioned at the outside of damping shell 25, and a snap ring 26 snaps in the ring groove 223 and fastens on the tube top 252 of damping shell 25.One sealing ring 27 places in the inner annular recess 226 of described damping body 22, and sealing circle 27 closely is pressed on the barrel 251 of damping shell 25, thereby between damping shell 25 and damping body 22, form a confined space, in this confined space, be sealed with the damping oil (not shown).
See also Fig. 2 and Fig. 3, described pivot device main body 1 comprises rotating cam 17, and rotating cam 17 tops are provided with sliding cam 16.Be set with a housing 14 outside the sliding cam 16, and this sliding cam 16 can endwisely slipping along housing 14 in housing 14.The axially extended limit along housing 14 that recessed formation two is centrosymmetric on the outer surface of housing 14 is changeed wall 141.The pressing spring of replacing between sliding cam 16 tops and this housing 14 15 also is housed in the housing 14.One axis 13 passes from rotating cam 17, sliding cam 16 and pressing spring 15.Axis 13 lower ends protrude out formation head 132 in the form of a ring to the border, and this head 132 is pressed on the rotating cam 17.Axis 13 upper ends offer cannelure 131, are arranged with a jump ring 11 in the cannelure 131, and axis 13 and jump ring 11 are limited to a spacing briquetting 12 upper end of housing 14.
See also Fig. 3, the upper surface of described sliding cam 16 has a circumferential sliding cam curved surface 161, and this cunning cam curved surface 161 has ascent stage curved surface and descending branch curved surface.What recessed formation was centrosymmetric on the outer surface of the sliding cam curved surface 161 of sliding cam 16 changes plane 162 along sliding cam 16 axially extended two limits, this limit is changeed plane 162 and is engaged with the limit commentaries on classics wall 141 of housing 14, thereby makes sliding cam 16 endwisely slip and can not rotate relative to housing 14 relative to housing 14.
See also Fig. 3, described rotating cam 17 has and is the pushed section 172 that cuboid and both ends of the surface are the planar contiguous block of circular arc 171 and are connected contiguous block 171 upper ends.Also be provided with the axle hole 173 that runs through contiguous block 171 and pushed section 172 up and down on the rotating cam 17.Contiguous block 171 is used for fastening with electronic product, thereby rotating cam 17 can be rotated with electronic product.Pushed section 172 is replaced on the sliding cam curved surface 161 of sliding cam 16.
This pivot device in use, should with turn 21 and rotating cam 17 be fixed on the folded part of folding electronic product, and damping shell 25 and housing 14 are fixed on another folded part of folding electronic product.
Electronic product is in opening stage, turn 21 and rotating cam 17 rotate and damping shell 25 and housing 14 relative fixed.The pushed section 172 pushing and pressing sliding cams 16 of rotating cam 17 and along the ascent stage curved surface slip of the sliding cam curved surface 161 of sliding cam 16, simultaneously sliding cam 16 axially moves and compresses pressing spring 15 along axis 13,21 the projection 214 of turning this moment is not connected on the block 225 of damping body 22, so damping body 22 21 does not rotate with turning.
When the pushed section 172 of rotating cam 17 slides into the descending branch curved surface of sliding cam curved surface 161 of sliding cam 16, turn and 21 turn to the side edge that its projection 214 is connected to the block 225 of damping body 22, at this moment damping body 22 begins with 21 rotations of turning with the rotor 23 that is fastened on the damping body 22, thus damping body 22 and rotor 23 relative damping shells 25 and 24 rotations of limit rotor.Because damping body 22 places in the damping shell 21, be sealed with damping oil between the damping body 22 of damper 2 and the damping shell 21 with viscosity property, therefore the viscous force of the damping oil rotation that can effectively slow down damping body 22, thus 2 of dampers can restrict the more and more faster trend of the opening speed of electronic product and reach a kind of slow open mode stably.In this state, therefore electronic product can produce vibrations hardly opening Shi Buhui generation impulsive force fully.
When electronic product is amounted to, turn 21 and rotating cam 17 rotate and damping shell 25 and housing 14 relative fixed.When the ascent stage curved surface of the sliding cam curved surface 161 of sliding cam 16 slided, damping body 22 21 did not rotate with turning in the pushed section 172 of rotating cam 17.When sliding into the descending branch curved surface of sliding cam curved surface 161 of sliding cam 16 in the pushed section 172 of rotating cam 17, the projection 214 on 21 of turning abuts to another side edge of block 225 on the damping body 22, damping body 22 begins to follow 21 rotations together of turning, thereby damping body 22 and rotor 23 relative damping shells 25 and limit rotor 24 rotate.Principle with opening stage is identical, the damping oil of sealing begins to play a role between the damping body 22 of damper 2 and the damping shell 25, therefore the rotation that effectively slows down damping body 22, thus damper 2 has restricted the more and more faster trend of the reduced velocity of electronic product and has reached a kind of slow stably folded position.Under this state, electronic product is amounted to Shi Buhui and is produced impulsive force, therefore can produce vibrations hardly.
Therefore the utility model pivot device can avoid electronic product to produce impulsive force when opening or amount to, thereby can protect electronic product better, and can make the electronic product use more comfortable and avoid dropping from hand.
In sum, the utility model pivot device is by above-mentioned preferred embodiment and relevant drawings explanation, concrete, full and accurate exposure correlation technique, but when specifically implementing, the protuberance be shapes such as strip, bulk and ellipse be spherical multiple variation can also be arranged, as can be set on rotor 23 or limit rotor 24.Therefore interest field of the present utility model is not exceeded with the foregoing description, and should be defined by claim of the present utility model.Still all should belong to interest field of the present utility model as for the change of component count described in this specification or the replacement of equivalent elements etc.
Claims (8)
1. pivot device, comprise a pivot device main body and a damper, it is characterized in that: this damper and the coaxial setting of pivot device main body, this damper is provided with a damping shell, this damping shell has columnar barrel and reaches the tube top that vertically extends internally and form from an end of this barrel, and the middle part at tube top offers the axis hole at this top of up/down perforation; One damping body, this damping body have a trunk portion and the extended connecting portion of an end from trunk portion that places in the barrel, and the other end of trunk portion passes the axis hole at a top; One snap ring, this snap ring are stuck on the end of the axis hole that passes a top of trunk portion and replace on the tube top; Several rotors, these several rotors place the interior also cutting ferrule of barrel on the trunk portion of damping body; Several limit rotor, on the trunk portion that is enclosed within damping body of this several staggered setting at interval of limit rotor and rotor and be placed in the barrel; One can promote turning of damping body rotation; One sealing ring, sealing circle are sealed between the connecting portion and damping shell of damping body; Wherein, between sealing circle, damping shell and damping body, be sealed with damping oil.
2. pivot device as claimed in claim 1 is characterized in that: offer ring groove on the end of the axis hole that passes a top of described trunk portion, described snap ring is stuck in the ring groove.
3. pivot device as claimed in claim 1, it is characterized in that: an excision part is formed with axially extended snap-latch surface on the outer surface of the trunk portion of described damping body, described rotor has first lamellar body on the trunk portion that is enclosed within damping body of annulus sheet, offers the hole clipping that fastens with snap-latch surface on first lamellar body; The barrel of described damping shell is outwards recessed to go out to be formed with axially extended draw-in groove, and described limit rotor has second lamellar body on the trunk portion that is enclosed within damping body of annulus sheet, and the annulus outside of second lamellar body is protruding with the fixture block that fastens with draw-in groove.
4. pivot device as claimed in claim 1, it is characterized in that: described pivot device main body comprises a rotating cam, a sliding cam, a pressing spring and a housing, this rotating cam has a contiguous block and is connected the pushed section of contiguous block upper end, the lower surface of sliding cam has a circumferential sliding cam curved surface, and pressing spring is replaced between housing and sliding cam; Described sliding cam slidably is fastened in the housing, and described pushed section is replaced on the sliding cam curved surface of sliding cam.
5. pivot device as claimed in claim 1 is characterized in that: inwardly offer inner annular recess on the outer surface of the connecting portion of described damping body, described sealing ring snaps in the inner annular recess.
6. pivot device as claimed in claim 1 is characterized in that: the connecting portion upper end block that is formed with protruding upward of described damping body; Described turning offers shaft hole, and the hole wall of shaft hole can push against the projection of the block of damping body to shaft hole projecting inward.
7. pivot device as claimed in claim 6 is characterized in that: described block and projection all are fan-shaped.
8. pivot device as claimed in claim 7 is characterized in that: the barrel of described damping shell is protruding with the anti-rotation wall, offers screw on turning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200579151U CN201174845Y (en) | 2007-09-28 | 2007-09-28 | Pivot device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200579151U CN201174845Y (en) | 2007-09-28 | 2007-09-28 | Pivot device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201174845Y true CN201174845Y (en) | 2008-12-31 |
Family
ID=40201976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200579151U Expired - Fee Related CN201174845Y (en) | 2007-09-28 | 2007-09-28 | Pivot device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201174845Y (en) |
-
2007
- 2007-09-28 CN CNU2007200579151U patent/CN201174845Y/en not_active Expired - Fee Related
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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: 20081231 Termination date: 20110928 |