CN201027888Y - Furniture damper - Google Patents
Furniture damper Download PDFInfo
- Publication number
- CN201027888Y CN201027888Y CNU2007200512151U CN200720051215U CN201027888Y CN 201027888 Y CN201027888 Y CN 201027888Y CN U2007200512151 U CNU2007200512151 U CN U2007200512151U CN 200720051215 U CN200720051215 U CN 200720051215U CN 201027888 Y CN201027888 Y CN 201027888Y
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- hole
- piston
- damping
- spring
- oil
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Abstract
A furniture damper comprises a cylinder body and a piston rod. One end of the piston rod is provided with a piston and a compression spring, while the other end of the piston rod is provided with a buffer head; an axial damping through-hole is arranged on the piston which is provided with an opening cavity for the axial sliding of a valve sheet; the opening cavity is communicated with the damping through-hole covered with the valve sheet; the opening cavity is blocked with the damping sheet; the outer wall of the piston is provided with an axial groove or gap; two oil passing gaps are arranged respectively between the piston and the inner wall of the cylinder and between the damping sheet and the inner wall of the cylinder. A spring is arranged inside the opening cavity; one end of the spring passes through the spring passing hole on the valve sheet and is in compression joint with the bottom of the damping sheet, and the other end is pressed against the damping sheet; the valve sheet is arranged inside the opening cavity. The spring is covered outside of a positioning short rod , and a positioning hole is arranged at the bottom of the opening cavity. The utility model is of simple structure, low manufacturing cost, and provided with two kinds of damping passage including a fast one and a slow one, which can effectively prevent the collision when the drawer is being closed with more flexible operation.
Description
Technical field
The utility model relates to a kind of damper, the damper of particularly a kind of furniture door and drawer.
Background technique
I disclose a kind of domestic damper in Chinese patent literature CN2846663Y, comprise cylinder body and piston rod, end at piston rod is provided with piston and pressure spring, the other end of piston rod is provided with buffer head, the middle part of piston rod is provided with guide holder and Sealing, it is characterized in that piston is provided with axial damp channel, be provided with the damper valve plate of its movement velocity of control in the damp channel; Damp channel comprises one or more through hole that is arranged on the piston, and is communicated with the annular groove of described through hole, and damper valve plate is provided with recess or the hole communicates with described groove.The damper folding speed difference of this structure, opening speed is faster than closing speed, and sealability is also reliable, but when its closing velocity is too fast, collision still might occur, is necessary further to improve and perfect.
The model utility content
Technical problem to be solved in the utility model be to provide a kind of simple and reasonable, fabricating cost is low, be provided with at a slow speed with quick two kinds of damping oil passages, can effectively prevent to collide, the furniture damper of flexible operation, to overcome deficiency of the prior art.
The technical scheme in the invention for solving the above technical problem is: a kind of furniture damper, comprise cylinder body and piston rod, piston rod one end is provided with piston and pressure spring, its the other end is provided with buffer head, piston is provided with axial damping through hole, its structure characteristic is that piston is provided with the opening chamber for the valve block axial slip, the opening chamber is connected with the damping through hole, the valve block lid is pressed on the damping through hole, the damping fin block is on the opening chamber, piston outer wall is provided with axial groove or breach, and piston and damping fin are respectively and be provided with oil-gap between the inboard wall of cylinder block.
The indoor spring that is provided with of above-mentioned atrium, spring one end are crimped on the opening cavity bottom after passing spring via hole on the valve block, and its other end is resisted against on the damping fin, and it is indoor that valve block is arranged on atrium.
Above-mentioned spring housing is located at outside the short column of location, the opening cavity bottom is provided with positioning hole, location short column one end is inserted in the positioning hole, after its other end passes valve block and damping fin successively, join with spring mounting seat, pressure spring one end is socketed on the spring mounting seat, and its other end is resisted against on the cylinder body.
Above-mentioned damping fin slides on the short column of location by pilot hole, and it is provided with one and above restriction protrusion towards valve block one side.
The utility model is because the end face of sound-absorptive head is the arc sphere, and it is provided with reticulate pattern, when itself and drawer wooden partition collide, can farthest carry out buffered, reduces noise greatly.Spring mounting seat, damping fin and piston link together, and can effectively prevent damping fin generation slippage, guarantee that damper is reliable.It is simple and reasonable, fabricating cost is low, is provided with at a slow speed and quick two kinds of damping oil passages, can effectively prevent to bump when drawer from closing, operate more flexible.
Description of drawings
Fig. 1 is the axial sectional structure schematic representation of the utility model one embodiment.
Fig. 2 is an A place structure for amplifying schematic representation among Fig. 1.
Fig. 3-Fig. 4 is the structure for amplifying schematic representation of two different amount of baffle ring.
Fig. 5 is the decomposition structure for amplifying schematic representation of piston, valve block, spring, damping fin, location short column and spring mounting seat.
Fig. 6-Fig. 7 is the structure for amplifying schematic representation of two different amount of piston.
Fig. 8 axially analyses and observe the structure for amplifying schematic representation for piston.
Fig. 9 is the structure for amplifying schematic representation of damping fin.
Figure 10 is the structure for amplifying schematic representation of spring mounting seat.
Figure 11 is the structure for amplifying schematic representation of buffer head.
Figure 12 is the structure for amplifying schematic representation of end cap.
Figure 13 is the structure for amplifying schematic representation of sound-absorptive head.
Figure 14 is the structure for amplifying schematic representation of end socket.
The working state structure for amplifying schematic representation of Figure 15 damper when slowly closing.
The working state structure for amplifying schematic representation of damper when Figure 16 is scram.
The working state structure for amplifying schematic representation of damper when Figure 17 cancels for external force.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Among the figure: 1 is cylinder body, and 1.1 is step, and 2 is end cap, 2.1 be groove, 3 is the O RunddichtringO, 4 is the seal ring of V font or Y font, 5 is baffle ring, and 5.1 is head, and 5.2 is first oil-through hole, 6 are the oil storage ring, and 7 is piston rod, and 8 is piston, 8.1 be the piston rod installing blind, 8.2 is axial damping through hole, 8.3 is axial groove, 8.4 be the opening chamber, 8.5 is positioning hole, 9 is valve block, 9.1 be the spring via hole, 10 is damping fin, 10.1 is pilot hole, 10.2 restriction protrusion, 10.3 is second oil-through hole, and 11 is spring, 12 are the location short column, and 13 is spring mounting seat, and 13.1 is leg, 13.2 be positioning hole, 14 is pressure spring, 15 is end socket, 16 is buffer head, 16.1 be the sound-absorptive head pilot hole, 16.2 is the piston rod pilot hole, 17 is sound-absorptive head.
Referring to Fig. 1, this furniture damper comprises cylinder body 1 and piston rod 7, and cylinder body 1 upper end is provided with end cap 2, the lower end is provided with end socket 15, and piston rod 7 one ends are provided with buffer head 16, see Figure 11, are embedded with sound-absorptive head 17 on the buffer head, the end face of sound-absorptive head is the arc sphere, and it is provided with reticulate pattern, sees Figure 13.The oil storage ring 6 of end cap 2, seal ring 4, baffle ring 5 and foam body is passed in piston rod 7 stage casings successively, wherein, be in the shape of the letter V or the seal ring 4 of Y font is set in the groove 2.1 on the end cap 2, see Figure 12, head 5.1 sleeves of baffle ring 5 that are convex shape are in groove 2.1, its base portion is resisted against the end cap edge, hoop is evenly equipped with three first oil-through holes 5.2 on the baffle ring 5, see Fig. 3-Fig. 4, oil storage ring 6 one ends are crimped on baffle ring 5 base portions, and the other end is resisted against on the step 1.1 of cylinder body 1 inwall, see Fig. 2, end socket 15 is convex shape, is installed on cylinder body 1 end, sees Figure 14.Piston and damping fin are respectively and be provided with oil-gap between the inboard wall of cylinder block.The piston rod the other end is provided with piston 8 and pressure spring 14, piston 8 outer walls are evenly equipped with three axial grooves 8.3, uniform three the axial damping through holes 8.2 of piston 8 central authorities, see Fig. 5-Fig. 7, piston is provided with the opening chamber 8.4 for valve block 9 axial slips, the opening chamber is connected with damping through hole 8.2, and the valve block lid is pressed on the damping through hole, and damping fin 10 block are on the opening chamber.Be provided with oil-gap between valve block 9 and opening chamber 8.4 inwalls, saw Fig. 5-Fig. 8.
Be provided with spring 11 in the opening chamber 8.4, spring one end is crimped on the opening cavity bottom after passing spring via hole 9.1 on the valve block 9, and its other end is resisted against on the damping fin 10, and it is indoor that valve block 9 is arranged on atrium.Spring housing is located at outside the short column 12 of location, opening chamber 8.4 bottoms are provided with positioning hole 8.5, location short column one end is inserted in the positioning hole, after the other end passes valve block 9 and damping fin 10 successively, join with spring mounting seat 13, see Fig. 1, Fig. 5 and Figure 10, spring mounting seat 13 cross sections are Y font, cross, * shape or Mi Zixing, are provided with oil-gap between itself and cylinder body 1 inwall.Pressure spring 14 1 ends are socketed on the spring mounting seat, and the other end is resisted against on the cylinder body 1.Damping fin 10 slides on the short column 12 of location by pilot hole 10.1, and it is provided with three restriction protrusion 10.2 towards valve block 9 one sides.Damping fin 10 is provided with three second oil-through hole 10.3, the second oil-through holes and is arranged on pilot hole 10.1 sides, and opening chamber 8.4 is connected with second oil-through hole.
When slowly closing, see Figure 15, promote piston rod along arrow H direction, valve block is pressed on the axial damping through hole at the effect lower cover of damping oil, and damping fin is stressed smaller, and at this moment, the damping oil in the cylinder body slowly flows along arrow B and C direction.
When energetically, during scram, see Figure 16, valve block still covers and is pressed on the axial damping through hole, at this moment, damping fin is being crushed under the effect of damping oil on the opening chamber, and the passage of crossing oil-gap and groove that leads between piston and the cylinder body from second oil-through hole is blocked originally, damping oil then can only flow along the arrow C direction, piston rod is forced to reduce movement velocity, and closing velocity is lowered, and closes gently at last.
When external force is cancelled, see Figure 17, piston rod is under the effect of pressure spring, move along arrow I direction, valve block slides onto to the right on the restriction protrusion that is resisted against damping fin, exposes by the axial damping through hole of its covering, damping oil just flows along arrow E, F and G direction, and flowing velocity compares comparatively fast.In order to prevent that valve block from sliding onto second oil-through hole that stops up on the damping fin, damping fin is provided with restriction protrusion, and is unobstructed to guarantee oil circuit.
According to the specific design needs, but shelves ring head 5.1, first oil-through hole 5.2, pressure spring 14, end socket 15 and sound-absorptive head 17 equal partial cancellation or cancel alls in the utility model.
Claims (10)
1. furniture damper, comprise cylinder body (1) and piston rod (7), piston rod one end is provided with piston (8) and pressure spring (14), its the other end is provided with buffer head (16), piston is provided with axial damping through hole (8.2), it is characterized in that described piston is provided with the opening chamber (8.4) for valve block (9) axial slip, the opening chamber is connected with the damping through hole, the valve block lid is pressed on the damping through hole, damping fin (10) block is on the opening chamber, piston outer wall is provided with axial groove (8.3) or breach, and piston and damping fin are respectively and be provided with oil-gap between the inboard wall of cylinder block.
2. furniture damper according to claim 1, it is characterized in that being provided with in the described opening chamber (8.4) spring (11), after spring one end passes spring via hole (9.1) on the valve block (9), be crimped on the opening cavity bottom, its the other end is resisted against on the damping fin (10), and it is indoor that valve block is arranged on atrium.
3. furniture damper according to claim 2, it is characterized in that described spring (11) is set in outside the location short column (12), opening chamber (8.4) bottom is provided with positioning hole (8.5), location short column one end is inserted in the positioning hole, after its other end passes valve block (9) and damping fin (10) successively, join with spring mounting seat (13), pressure spring (14) one ends are socketed on the spring mounting seat, and its other end is resisted against on the cylinder body (1).
4. furniture damper according to claim 3 is characterized in that described damping fin (10) slides on the location short column (12) by pilot hole (10.1), and it is provided with one and above restriction protrusion (10.2) towards valve block (9) one sides.
5. according to the described furniture damper of the arbitrary claim of claim 2 to 4, it is characterized in that described damping fin (10) is provided with one and above second oil-through hole (10.3), second oil-through hole is arranged on pilot hole (10.1) side, and opening chamber (8.4) is connected with second oil-through hole.
6. furniture damper according to claim 3 is characterized in that described spring mounting seat (13) cross section is Y font, cross, * shape or Mi Zixing, is provided with oil-gap between itself and the inboard wall of cylinder block.
7. furniture damper according to claim 1 is characterized in that described piston (8) outer wall is provided with more than one axial groove (8.3) or breach.
8. furniture damper according to claim 1 is characterized in that being provided with oil-gap between described valve block (9) and opening chamber (8.4) inwall.
9. furniture damper according to claim 1 is characterized in that being embedded with sound-absorptive head (17) on the described buffer head (16), and the end face of sound-absorptive head is the arc sphere, and it is provided with reticulate pattern.
10. furniture damper according to claim 1, it is characterized in that described cylinder body (1) upper end is provided with end cap (2), the lower end is provided with end socket (15), end cap is passed in piston rod (7) stage casing successively, seal ring (4), the oil storage ring (6) of baffle ring (5) and foam body, wherein, be in the shape of the letter V or the seal ring of Y font is set in the groove (2.1) of end cap, head (5.1) sleeve that is the baffle ring of convex shape is in groove, its base portion is resisted against the end cap edge, baffle ring is provided with first oil-through hole (5.2), oil storage ring one end is crimped on the baffle ring base portion, and the other end is resisted against on the step (1.1) of cylinder body (1) inwall, and end socket is convex shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200512151U CN201027888Y (en) | 2007-04-30 | 2007-04-30 | Furniture damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200512151U CN201027888Y (en) | 2007-04-30 | 2007-04-30 | Furniture damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201027888Y true CN201027888Y (en) | 2008-02-27 |
Family
ID=39132098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200512151U Expired - Fee Related CN201027888Y (en) | 2007-04-30 | 2007-04-30 | Furniture damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201027888Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103641004A (en) * | 2013-11-25 | 2014-03-19 | 无锡起岸重工机械有限公司 | Trussed marine platform crane variable-amplitude limiting mechanism |
| CN104653686A (en) * | 2015-02-06 | 2015-05-27 | 伍志勇 | Buffer with controllable buffering force |
| CN105292868A (en) * | 2015-10-23 | 2016-02-03 | 陈亿志 | Dustbin with two-section type buffer closing cover |
| CN107630964A (en) * | 2017-09-20 | 2018-01-26 | 周根元 | A kind of hydraulic damper |
| CN113958650A (en) * | 2021-10-25 | 2022-01-21 | 中电建路桥集团有限公司 | Damper for noise elimination and vibration reduction of building operation equipment |
-
2007
- 2007-04-30 CN CNU2007200512151U patent/CN201027888Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103641004A (en) * | 2013-11-25 | 2014-03-19 | 无锡起岸重工机械有限公司 | Trussed marine platform crane variable-amplitude limiting mechanism |
| CN104653686A (en) * | 2015-02-06 | 2015-05-27 | 伍志勇 | Buffer with controllable buffering force |
| CN105292868A (en) * | 2015-10-23 | 2016-02-03 | 陈亿志 | Dustbin with two-section type buffer closing cover |
| CN107630964A (en) * | 2017-09-20 | 2018-01-26 | 周根元 | A kind of hydraulic damper |
| CN107630964B (en) * | 2017-09-20 | 2023-08-11 | 肇庆市维德亚科技有限公司 | Hydraulic damper |
| CN113958650A (en) * | 2021-10-25 | 2022-01-21 | 中电建路桥集团有限公司 | Damper for noise elimination and vibration reduction of building operation equipment |
| CN113958650B (en) * | 2021-10-25 | 2022-09-16 | 中电建路桥集团有限公司 | Damper for noise elimination and vibration reduction of building operation equipment |
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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: 20080227 Termination date: 20140430 |