CN201065908Y - Minitype damper - Google Patents
Minitype damper Download PDFInfo
- Publication number
- CN201065908Y CN201065908Y CNU2007201105862U CN200720110586U CN201065908Y CN 201065908 Y CN201065908 Y CN 201065908Y CN U2007201105862 U CNU2007201105862 U CN U2007201105862U CN 200720110586 U CN200720110586 U CN 200720110586U CN 201065908 Y CN201065908 Y CN 201065908Y
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder body
- piston rod
- damping device
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000013016 damping Methods 0.000 claims abstract description 51
- 239000000463 material Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 12
- 230000002028 premature Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Landscapes
- Drawers Of Furniture (AREA)
Abstract
The utility model provides a miniature damper, belonging to the mechanical technology field and solving the defaults that the application effect is not good, the elastic collision head is easy to be damaged and the applicability is poor in the prior art. The utility model comprises a cylinder body, a piston and a piston rod. The piston is arranged in the cylinder body, the inner end of the piston rod is connected with the piston, the outer end of the piston rod runs out of the cylinder body, a spring ensuring the piston to be retracted into the cylinder body is also arranged in the cylinder body, the outer diameter of the piston is slightly smaller than the inner diameter of the cylinder body, and a damping structure is arranged on the piston to ensure the acting force of the medium in the cylinder body on the piston along the spring to flow slowly in the opposite direction. The miniature damper has the advantages that the structure is simple and compact, the operation stability is high, and the applicability is broad.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of minisize damping device.
Background technique
In existing cabinet or other furniture with drawer, drawer can bump and make a noise in course of action with cabinet, also makes cabinet or drawer because of the too early damage of collision simultaneously.
At the problems referred to above, people have just designed a kind of damping device, a kind of " door is taken out buffer " that for example China Patent No. 02272493.1 provides, it comprises oil hydraulic cylinder, piston and a piston rod, the outer end of piston rod passes oil hydraulic cylinder and is provided with elasticity thereon and rams, also be provided with spring between piston and cylinder bottom, piston was provided with the liquid passage.
When door or drawer when elasticity is ramed pressurized in the switching process, piston rod slides in oil hydraulic cylinder after driving the elastic force that piston overcomes spring.Interior the cross liquid passage of hydraulic medium on piston of cavity that has spring one side in the oil hydraulic cylinder flows in the cavity of oil hydraulic cylinder opposite side, and under the double action of hydraulic medium and spring, piston rod can only slowly slide in this process.On the contrary, when elasticity was ramed not pressurized, the resistance that spring just overcomes hydraulic medium was ramed elasticity and is ejected.
As can be seen, the piston rod that above-mentioned door is taken out when elasticity is ramed pressurized in the buffer on it can slowly bounce back in the oil hydraulic cylinder, that is to say by this buffer to make drawer or door open and close slowly.Usually, on door or drawer, also need to prepare elastic component, utilize the feasible door of elastic force or the drawer automatic opening-closing of elastic component.Obviously, so just making this door take out the buffer elastic component of must arranging in pairs or groups could normal use, and its applicability is relatively poor.And, it mainly is to ram and baffle element collision realization by the elasticity on the piston rod in buffering course, though elasticity is ramed and contacted comparatively steadily with baffle element, has knockout process between the two all the time, use after a period of time elasticity to ram and also damage easily.In addition, this buffer makes the drawer opening and closing all compare slowly, drawer need be opened fast and can not be realized, actual practical effect is not good.
Existing other door is taken out buffer and is also existed similar problem.
Summary of the invention
The purpose of this utility model is at existing in prior technology the problems referred to above, and a kind of simple and compact for structure, stability in use is high, applicability is wide minisize damping device is provided.
The purpose of this utility model can realize by following technical proposal: a kind of minisize damping device, it comprises cylinder body, piston and a piston rod, piston is loaded in the cylinder body, the inner and the piston of piston rod link, the outer end of piston rod passes cylinder body, it is characterized in that, also be provided with in the described cylinder body and can make piston toward the interior spring that shrinks of cylinder body, the external diameter of piston is slightly less than cylinder diameter, and piston is provided with the damping structure that the interior medium of cylinder body is slowly flowed along the active force of spring action on piston in the other direction.
This minisize damping device is installed in the cabinet or other furniture with drawer.Wherein, the main body of cylinder body and furniture is connected, and the outer end and the drawer of piston rod are connected.When opening drawer, piston rod overcomes behind the elastic force of spring along with protruding, and piston is being followed and slided, and the gap of medium between piston and cylinder body in this process in the cylinder body flow through smoothly fast, that is to say to open in the drawer process than faster.
On the contrary, during closing drawers, the elastic force of spring acts on the piston, makes piston together with in the automatic retract cylinder of piston rod, and the medium in this process in the cylinder body can only flow under the effect of damping structure slowly.Thereby make that drawer pass closed procedure is comparatively slow, avoided the fierce collision of drawer and furniture main body.
In above-mentioned minisize damping device, described spring housing is distinguished roof pressure on cylinder body inboard and piston on the piston rod and its two ends.The trend that tension force by spring makes piston rod have to bounce back in cylinder body.
As another kind of situation, in above-mentioned minisize damping device, described spring is located at piston and is in the cylinder body of piston rod end opposite, and the two ends of spring are connected in piston and cylinder body inboard respectively.The trend that pulling force by spring makes piston rod have to bounce back in cylinder body.
In above-mentioned minisize damping device, described damping structure is the piston that is actively socketed on piston rod the inner, and piston is horn-like and is made by flexible material.As can be seen, when the medium in the cylinder body acts on the piston, the horn-like place of piston is subjected to pressure medium and when opening, has just eliminated the gap between piston and the cylinder body.Medium can only flow through through the gap between piston inboard and the piston rod, because the gap between piston inboard and the piston rod is less, so just makes medium to flow through slowly.
In above-mentioned minisize damping device, described piston is made by rubber material.Such cost of material is lower, and easily manufactured.
As another kind of situation, in above-mentioned minisize damping device, described piston rod the inner is provided with a piston connecting head with retaining edge, and being socketed on the piston connecting head and by the retaining edge of above-mentioned piston activity stops.As can be seen, spring action just acts on the piston in the end opposite of cylinder body inboard, and the other end of piston is stopped by the retaining edge.So just make that the piston that is actively socketed on the piston connecting head can not come off.
In above-mentioned minisize damping device, also be provided with a convex shoulder on the described piston connecting head, above-mentioned piston sleeve be connected on convex shoulder and retaining along between the piston connecting head on, and have the damping hole that runs through on the convex shoulder.The end opposite of spring action in the cylinder body inboard just acts on the convex shoulder, so just makes piston not by the spring roof pressure, avoids the piston premature damage.
As another kind of situation, in above-mentioned minisize damping device, described damping structure is the annular groove that is located at piston end surface, and the cross section of annular groove is the V shape.When the medium in the cylinder body acted on the piston with annular groove one end, the pressure of medium will make the annular groove of V shape open, and eliminated the gap between piston and the cylinder body.
In above-mentioned minisize damping device, the two ends of described cylinder body are the open type structure, and are provided with in the port and block.Such structure manufacturing is more convenient, and assembly process also seems more convenient certainly.
In above-mentioned minisize damping device, blocking of described cylinder base is provided with spacing head, and the external diameter of this spacing head is less than piston inner diameter.When piston slid into cylinder base, the spacing head of protrusion will pass piston and contact with the piston connecting head.So just avoid the direct roof pressure of piston in cylinder base, avoided the piston premature damage.
In above-mentioned minisize damping device, described block and cylinder body between be provided with seal ring.Be provided with seal ring can avoid in the cylinder body medium by block and cylinder body between the joint leak.
Compared with prior art, this minisize damping device can make utensils such as drawer comparatively quick when opening, but comparatively slow when closing.So just make that the stability in use of utensils such as drawer is higher, make a noise closing Shi Buhui; Owing to can not produce fierce collision, make that so also the working life of utensils such as furniture is longer.
Simultaneously, this minisize damping device is provided with spring in its cylinder body, the minisize damping device is directly installed between main body and the drawer get final product, and need not to be provided with in addition elastic component.Therefore, its applicability is wider.
In addition, it only is made up of cylinder body and piston rod, piston and the spring etc. that are loaded in the cylinder body, so it is simple and compact for structure.
Description of drawings
Fig. 1 is this minisize damping device embodiment one a structural representation.
Fig. 2 is this minisize damping device embodiment two a structural representation.
Fig. 3 is the partial enlarged drawing at a place among Fig. 2.
Fig. 4 is this minisize damping device embodiment three a structural representation.
Fig. 5 is the partial enlarged drawing at b place among Fig. 4.
Fig. 6 is the A-A sectional view of Fig. 5.
Fig. 7 is this minisize damping device embodiment four a structural representation.
Among the figure, 1, cylinder body; 2, piston; 3, piston rod; 4, spring; 5, block; 51, spacing head; 6, seal ring; 7, piston connecting head; 71, convex shoulder; 72, retaining edge; 73, damping hole; 8, annular groove.
Embodiment
As shown in Figure 1, this minisize damping device is installed on the cabinet or other furniture with drawer.It is made up of cylinder body 1, piston 2, piston rod 3 and spring 4 etc.
The two ends of cylinder body 1 are the open type structure, and are provided with in its port and block 5.In order to prevent that the medium in the cylinder body 1 from leaking, block 5 and cylinder body 1 between be provided with seal ring 6.
When this minisize damping device was installed on the furniture, the cylinder body 1 of minisize damping device was connected with the main body of furniture, and the outer end and the drawer of piston rod 3 are connected.When opening drawer, drawer drives behind the elastic force that piston rod 3 overcomes spring 4 protruding, and the medium in this process in the cylinder body 1 can flow through fast through the gap between piston 2 and the cylinder body 1.Correspondingly, piston 2 slides fast, and piston rod 3 also moves fast, makes drawer to open fast.
During closing drawers, drawer bounces back under the elastic force effect of spring 4 automatically, and this moment, cylinder body 1 interior medium acted on piston 2 end faces that are positioned at spring 4 end opposite.Pressure medium opens the horn-like place of piston 2, thereby eliminates the gap between piston 2 and the cylinder body 1.Medium can only be flow through by the gap between piston 2 inboards and the piston rod 3, because the gap between piston 2 inboards and the piston rod 3 is less, so just makes that media flow is slow.Correspondingly, piston 2 slides slowly, and piston rod 3 also moves slowly, finally makes drawer comparatively slow in closing closed procedure.Thereby avoid the drawer quick closedown and make a noise or make the drawer premature damage.
The two ends of cylinder body 1 are the open type structure, and are connected with in the port and block 5.In the present embodiment, make the damage that piston 2 is too early in order to prevent piston 2 to be resisted against cylinder body 1 bottom, be provided with spacing 51 of protrusion on 5 blocking of cylinder body 1 bottom, and this external diameter of spacing 51 is less than piston 2 internal diameters.When piston 2 during to cylinder body 1 basal sliding, spacing 51 can directly be resisted against piston rod 3 the inners, so just makes piston 2 can not contact with cylinder body 1 bottom, thereby prolongs the working life of piston 2.
Embodiment two
As Fig. 2, shown in Figure 3, present embodiment is basic identical with embodiment one structure and principle, different place is to be provided with a piston connecting head 7 in piston rod 3 the inners, the end of piston connecting head 7 has the retaining of protrusion along 72, and be close to retaining at piston connecting head 7 and also be provided with a convex shoulder 71 along 72 places, above-mentioned piston 2 activities be socketed in convex shoulder 71 and the position of retaining between 72.As can be seen, piston 2 move up and down respectively by convex shoulder 71 and retaining along 72 limit, so just make piston 2 can not come off.
Simultaneously, the other end that above-mentioned spring 4 acts on cylinder body 1 acts directly on the convex shoulder 71, avoids spring 4 direct roof pressures on piston 2 and make piston 2 premature damage.In the present embodiment, flow through by piston connecting head 7 places smoothly, on the convex shoulder 71 of piston connecting head 7, be provided with the damping hole 73 that runs through in order to make medium.
Embodiment three
As Fig. 4, Fig. 5, shown in Figure 6, present embodiment is basic identical with embodiment one structure and principle, and different place is that above-mentioned damping structure is the annular groove 8 that is located at piston 2 end faces, and the cross section of annular groove 8 is the V shape.When the medium in the cylinder body 1 acted on the piston of annular groove 8 one ends, the annular groove 8 of V shape will open under pressure medium, thereby eliminated the gap between piston 2 and the cylinder body 1.
Embodiment four
As shown in Figure 7, present embodiment is basic identical with embodiment one structure and principle, and different place is that spring 4 is located at piston 2 and is in the cylinder body 1 of piston rod 3 end opposite, and the two ends of spring 4 are connected in piston 2 and cylinder body 1 inboard respectively.Pulling force by spring 4 makes piston rod 3 have the trend of retraction in cylinder body 1.
Claims (10)
1. minisize damping device, it comprises a cylinder body (1), piston (2) and piston rod (3), piston (2) is loaded in the cylinder body (1), the inner of piston rod (3) and piston (2) link, the outer end of piston rod (3) passes cylinder body (1), it is characterized in that, also be provided with in the described cylinder body (1) and can make piston (2) toward the interior spring (4) that shrinks of cylinder body (1), the external diameter of piston (2) is slightly less than cylinder body (1) internal diameter, and piston (2) is provided with the medium that makes in the cylinder body (1) and acts on the damping structure that the active force on the piston (2) slowly flows in the other direction along spring (4).
2. minisize damping device according to claim 1 is characterized in that, described spring (4) is enclosed within on the piston rod (3) and roof pressure is distinguished on cylinder body (1) inboard and piston (2) in its two ends.
3. minisize damping device according to claim 1 is characterized in that, described spring (4) is located at piston (2) and is in the cylinder body (1) of piston rod (3) end opposite, and the two ends of spring (4) are connected in piston (2) and cylinder body (1) inboard respectively.
4. minisize damping device according to claim 1 is characterized in that, described damping structure is for being actively socketed on the inner piston (2) of piston rod (3), and piston (2) is horn-like and is made by flexible material.
5. minisize damping device according to claim 4 is characterized in that, described piston (2) is made by rubber material.
6. according to claim 1 or 2 or 3 or 4 or 5 described minisize damping devices, it is characterized in that, described piston rod (3) the inner is provided with a piston connecting head (7) with retaining along (72), and the piston connecting head (7) that is socketed in that above-mentioned piston (2) is movable upward and by retaining stops along (72).
7. minisize damping device according to claim 6, it is characterized in that, also be provided with a convex shoulder (71) on the described piston connecting head (7), above-mentioned piston (2) is socketed in convex shoulder (71) and keeps off along on the piston connecting head (7) between (72), and has the damping hole (73) that runs through on the convex shoulder (71).
8. minisize damping device according to claim 1 is characterized in that, described damping structure is for being located at the annular groove (8) of piston (2) end face, and the cross section of annular groove (8) is the V shape.
9. according to claim 1 or 2 or 3 or 4 or 5 described minisize damping devices, it is characterized in that the two ends of described cylinder body (1) are the open type structure, and be provided with in the port and block (5).
10. minisize damping device according to claim 9 is characterized in that, block (5) of described cylinder body (1) bottom are provided with spacing head (51), and the external diameter of this spacing head (51) is less than piston (2) internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201105862U CN201065908Y (en) | 2007-06-12 | 2007-06-12 | Minitype damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201105862U CN201065908Y (en) | 2007-06-12 | 2007-06-12 | Minitype damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201065908Y true CN201065908Y (en) | 2008-05-28 |
Family
ID=39483085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201105862U Expired - Fee Related CN201065908Y (en) | 2007-06-12 | 2007-06-12 | Minitype damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201065908Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2489271A (en) * | 2011-03-23 | 2012-09-26 | Vistamatic Ltd | A miniature damper, a viewing panel, and an installation method |
| CN111684172A (en) * | 2018-03-28 | 2020-09-18 | 百乐仕株式会社 | damper |
-
2007
- 2007-06-12 CN CNU2007201105862U patent/CN201065908Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2489271A (en) * | 2011-03-23 | 2012-09-26 | Vistamatic Ltd | A miniature damper, a viewing panel, and an installation method |
| WO2012127237A1 (en) | 2011-03-23 | 2012-09-27 | Vistamatic Limited | Miniature damper, viewing panel unit, and installation method |
| CN111684172A (en) * | 2018-03-28 | 2020-09-18 | 百乐仕株式会社 | damper |
| CN111684172B (en) * | 2018-03-28 | 2022-02-01 | 百乐仕株式会社 | Damper |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104234570A (en) | Furniture hinge | |
| EP2546443A1 (en) | Door damper buffer | |
| CN201065908Y (en) | Minitype damper | |
| CN203308257U (en) | Furniture hinge | |
| CN101614282B (en) | Differential type pneumatic angle pedestal valve | |
| CN202418396U (en) | Bidirectional hydraulic buffer | |
| CN201027889Y (en) | Furniture damper | |
| CN208614779U (en) | A kind of large-sized photovoltaic power station clean and maintenance machine robot arm frame stop locking device | |
| CN215806461U (en) | High-sealing-performance eccentric half ball valve | |
| CN108166880B (en) | Furniture sliding door buffer | |
| CA2898785C (en) | A slow-closing door hinge | |
| CN201133439Y (en) | Damper for furniture | |
| CN200999823Y (en) | Hydraulic damper | |
| CN102562908B (en) | Bidirectional hydraulic buffer | |
| CN112443220B (en) | Horizontal freezer door body hinge and freezer | |
| CN202790614U (en) | Sluice valve | |
| CN210799851U (en) | Full-buffering small-angle stretching buffer | |
| CN216045164U (en) | Three-section lockable gas spring | |
| CN201517583U (en) | Hydraulic damper | |
| CN208982675U (en) | One kind is surged wear-resistant sluice valve | |
| CN208858679U (en) | A piston cylinder device | |
| CN219345596U (en) | Small-bore lifting check valve clack anti-rotation structure | |
| CN202132521U (en) | Displacement compensator for sealing ring of ultra supercritical unit control valve | |
| CN202732520U (en) | Overload valve | |
| CN205638015U (en) | A attenuator is optimized structure for furniture |
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: 20080528 Termination date: 20100612 |