CN102777532B - Double-rod oil buffer for hinge - Google Patents
Double-rod oil buffer for hinge Download PDFInfo
- Publication number
- CN102777532B CN102777532B CN201210197716.6A CN201210197716A CN102777532B CN 102777532 B CN102777532 B CN 102777532B CN 201210197716 A CN201210197716 A CN 201210197716A CN 102777532 B CN102777532 B CN 102777532B
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- piston
- cylinder body
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- piston rod
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Abstract
Double-rod oil buffer for hinge of the present invention is involved in a kind of buffer for hinge for furniture.Include cylinder body, end cap, piston and piston rod.The inner chamber two ends of described cylinder body are respectively arranged with seal ring, and the intracavity bottom of cylinder body is provided with movable span; Described piston rod one end exposes to cylinder body, and the other end is positioned at movable span place; Described piston is be arranged on neutral position piston rod being positioned at cylinder body inner piston rod.The piston rod that the present invention adopts designs for double rod type, has good cushioning effect.
Description
Technical field
The present invention relates to the buffer in a kind of furniture, particularly in a kind of buffer for hinge for furniture.
Background technique
The buffer of current hinge for furniture includes cylinder body, end cap, piston and piston rod, the patent No. as State Intellectual Property Office's announcement is the utility model patent " a kind of hydraulic damping buffer of hinges of door and window " of 200720057081.4, the cylinder body of this buffer is the inner chamber of a sealing, and the piston of inner chamber is arranged on plunger end.This structure, due to the both sides of piston, side have bar and opposite side without bar; When piston moves in cylinder body, have bar side can packing space than without bar side can packing space little, and can along with the stroke of piston is longer, the diameter of piston rod is larger, gap is larger.Therefore, this structure cannot realize seamless connectivity when piston two-way moves, and cause buffering unstable, cushioning effect is poor.
Content of the present invention
The present invention, in order to solve the deficiency of above-mentioned hydraulic buffer, provides a kind of two bar hydraulic buffer.
Double-rod oil buffer for hinge, includes cylinder body, end cap, piston and piston rod.The inner chamber two ends of described cylinder body are respectively arranged with seal ring, and the intracavity bottom of cylinder body is provided with movable span; Described piston rod one end exposes to cylinder body, and the other end is positioned at movable span place; Described piston is be arranged on neutral position piston rod being positioned at cylinder body inner piston rod.
Above-mentioned piston rod is for including push rod and return bar, and described push rod and return bar lay respectively at the both sides of piston, and the diameter of push rod and return bar differs, and return bar is less than push rod, and on return bar, cover has a diameter to be equal to the sleeve of push rod size.
Above-mentioned piston becomes Spielpassung with inner chamber of cylinder block, and piston 3 inside is provided with damping oil circuit or quick oil return circuit, and piston and inner chamber of cylinder block surface of contact place are provided with a groove, are provided with an O RunddichtringO in groove.Above-mentioned seal ring is y-type seal ring.
The diameter of above-mentioned movable span is less than the diameter of seal ring and is greater than the diameter of piston rod.
Above-mentioned recess width is greater than 1/2,1/3,1/4,1/5 or 1/6 of O RunddichtringO diameter.
Beneficial effect of the present invention
Because the piston rod of the present invention's employing is for having push rod and the design of return bar double rod type, namely piston of the present invention is arranged on the built-in piston rod neutral position of cylinder body, when making it use, promotion oil in cylinder body flows back and forth about piston, promote oil to be filled in all the time in the both sides inner chamber of cylinder body inner carrier, make it reach good cushioning effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is using state figure of the present invention.
Fig. 3 is scheme of installation of the present invention.
Embodiment
Double-rod oil buffer for hinge as shown in figures 1 and 3, includes cylinder body 1, end cap 2, piston 3 and piston rod 4.The inner chamber two ends of described cylinder body 1 are respectively arranged with seal ring 5, and sealing circle 5 is y-type seal ring.The intracavity bottom of cylinder body 1 is provided with the movable span 6 for piston rod 4 telescopic moving; Described piston rod 4 one end exposes to cylinder body 1, and the other end is positioned at movable span 6 place; Described piston 3 for being arranged on, piston rod 4 is positioned at the neutral position of cylinder body 1 inner piston rod 4, specifically: piston 3 is for being arranged on the neutral position of one section of built-in piston rod 4 of cylinder body 1.This piston 3 becomes gap 10 to coordinate with cylinder body 1 inner chamber, and piston 3 inside is provided with damping oil circuit or quick oil return circuit.Namely internal piston is provided with the inner chamber making oil be flowed into piston 3 opposite side cylinder body 1 slowly by the inner chamber of piston 3 side cylinder body 1, tosses about as oily quick backflow is to the oil circuit of former cylinder body 1 inner chamber.Described gap 10 acts on oil 12 and flows back and forth about the inner chamber of cylinder body 1 inner carrier both sides.The mode of this piston rod 4 concrete structure can be: described piston rod 4 is for including the double rod type structure of push rod 41 and return bar 42, push rod 41 and return bar 42 lay respectively at the both sides of piston 3, the diameter of push rod 41 and return bar 42 differs, return bar 42 is less than push rod 41, during installation, piston 3 is arranged on push rod 41, on return bar 42, cover has a diameter to equal the sleeve 9 of push rod 41 size, namely the external diameter size of sleeve 9 equals the diameter of push rod 41, utilizing jump ring 10 or directly riveting return bar 42 outer end is fixed on return bar 42 by sleeve 9, make the return bar 42 of cover upper bush 9 identical with push rod 41 diameter, the piston rod 4 of the piston both sides in its cylinder body 1 inner chamber 11 is made to take the cavity volume of cylinder body 1 identical.Described piston 3 is provided with a groove 7 with cylinder body 1 lumen contact face place, an O RunddichtringO 8 is provided with in groove 7, the width of this groove 7 is slightly larger than the diameter of O RunddichtringO 8, and the large small―gap suture of this groove 7 and O RunddichtringO 8 acts on and makes oil by flowing back and forth between groove 7 and O RunddichtringO 8.Specifically: groove 7 width is greater than 1/2,1/3,1/4,1/5 or 1/6 of O RunddichtringO 8 diameter.The diameter of above-mentioned movable span 6 is less than the diameter of seal ring 5 and is greater than the diameter of piston rod 4, can give up the throne in movable span 6 when piston rod 4 is stretched.
When the present invention uses, oil 12 is in the inner chamber of cylinder body 1, utilize the internal structure of piston 3 and the cooperation of seal ring 8, by moving left and right piston rod 4, oil is entered piston 3 opposite side cylinder body 1 inner chamber by the damping oil circuit arranged in the extruded piston 3 excessively of cylinder body 1 inner chamber of piston 3 side or quick oil return circuit, namely oil is squeezed to the inner chamber of opposite side cylinder body from the inner chamber of piston 3 side cylinder body 1, reaches the function of unlatching or slowly closing fast.Specifically: when oil is entered piston 3 opposite side cylinder body 1 inner chamber by the extruded damping oil circuit crossing piston 3 inside of cylinder body 1 inner chamber of piston 3 side, namely oil is squeezed to opposite side cylinder body 1 inner chamber from side cylinder body 1 inner chamber of piston 3, reaches the function that slowly (contraction) closes; When the quick oil return circuit backflow arranged in extruded piston 3 excessively by cylinder body 1 inner chamber of piston 3 side by oil enters piston 3 opposite side cylinder body 1 inner chamber, namely oil is back to opposite side inner chamber of cylinder block from the extruding of piston 3 side inner chamber of cylinder block, reaches the function that (extension) fast opens.
Claims (1)
1. Double-rod oil buffer for hinge, include cylinder body (1), end cap (2), piston (3) and piston rod (4), the inner chamber two ends of described cylinder body (1) are respectively arranged with seal ring (5), and the intracavity bottom of cylinder body (1) is provided with movable span (6), described piston rod (4) one end exposes to cylinder body (1), and the other end is positioned at movable span (6) place, described piston (3) is for being arranged on neutral position piston rod (4) being positioned at cylinder body (1) inner piston rod (4), it is characterized in that: described piston rod (4) includes push rod (41) and return bar (42), described push rod (41) and return bar (42) lay respectively at the both sides of piston (3), the diameter of push rod (41) and return bar (42) differs, return bar (42) is less than push rod (41), a diameter is had to be equal to the sleeve (9) of push rod (41) size at the upper cover of return bar (42), the diameter of described movable span (6) is less than the diameter of seal ring (5) and is greater than the diameter of piston rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210197716.6A CN102777532B (en) | 2012-06-08 | 2012-06-08 | Double-rod oil buffer for hinge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210197716.6A CN102777532B (en) | 2012-06-08 | 2012-06-08 | Double-rod oil buffer for hinge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102777532A CN102777532A (en) | 2012-11-14 |
| CN102777532B true CN102777532B (en) | 2015-09-02 |
Family
ID=47122572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210197716.6A Expired - Fee Related CN102777532B (en) | 2012-06-08 | 2012-06-08 | Double-rod oil buffer for hinge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102777532B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5699992B2 (en) * | 2012-06-21 | 2015-04-15 | Smc株式会社 | Bi-directional shock absorber |
| CN106917838A (en) * | 2015-12-24 | 2017-07-04 | 北京自动化控制设备研究所 | A kind of single compression spring bidirectional buffering structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200999823Y (en) * | 2006-11-07 | 2008-01-02 | 李康玉 | Hydraulic damper |
| JP2009185969A (en) * | 2008-02-08 | 2009-08-20 | Fuji Latex Kk | Adapter, and shock absorber device equipped with the same |
| CN201908986U (en) * | 2011-01-11 | 2011-07-27 | 常州容大结构减振设备有限公司 | Double-rod hydraulic damper |
| CN203082106U (en) * | 2012-06-08 | 2013-07-24 | 张志成 | Double-rod oil pressure buffer for hinge |
-
2012
- 2012-06-08 CN CN201210197716.6A patent/CN102777532B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200999823Y (en) * | 2006-11-07 | 2008-01-02 | 李康玉 | Hydraulic damper |
| JP2009185969A (en) * | 2008-02-08 | 2009-08-20 | Fuji Latex Kk | Adapter, and shock absorber device equipped with the same |
| CN201908986U (en) * | 2011-01-11 | 2011-07-27 | 常州容大结构减振设备有限公司 | Double-rod hydraulic damper |
| CN203082106U (en) * | 2012-06-08 | 2013-07-24 | 张志成 | Double-rod oil pressure buffer for hinge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102777532A (en) | 2012-11-14 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20200608 |
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| CF01 | Termination of patent right due to non-payment of annual fee |