CN103090105B - Valve buffer - Google Patents
Valve buffer Download PDFInfo
- Publication number
- CN103090105B CN103090105B CN201310033675.1A CN201310033675A CN103090105B CN 103090105 B CN103090105 B CN 103090105B CN 201310033675 A CN201310033675 A CN 201310033675A CN 103090105 B CN103090105 B CN 103090105B
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder body
- valve
- inner chamber
- end cap
- 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
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The present invention relates to a kind of valve buffer, use the present invention, when valve opening or closedown, flap rotates, and drivening rod realizes swinging, and connecting rod driven plunger produces relative movement in cylinder body; In the initial stage of valve closing and the latter stage of unlatching, flap is away from the adjacent domain of valve seat, piston moves in the imperial palace cavity of cylinder body, the fluid of piston left and right sides can by the mutual free-flow in large annular pass formed between cylindrical outer wall and imperial palace cavity inner wall, flap moves freely under the effect of external force, realizes the quick opening and closing of valve; At the latter stage of valve closing and the initial stage of unlatching, flap is in the adjacent domain of valve seat, piston moves in the little inner chamber body of cylinder body, the cylindrical outer wall of piston coordinates with being formed between little inner chamber body inwall, the fluid of piston left and right sides can be flowed each other by the gap of damping oil groove and piston outer wall and little inner chamber body inwall, produce corresponding damping, flap is slowly left or close to valve seat, plays buffer function.
Description
Technical field
The present invention relates to a kind of hydraulic bjuffer, especially a kind of valve buffer.
Background technique
At present, Cemented filling is widely used in electric power, oil, chemical industry, iron and steel and other field, and the medium of Cemented filling comprises liquids and gases etc.Inevitably need to use valve in Cemented filling, valve is from closed condition, progressively open, ducted fed sheet of a media will by valve to dirty motion, if the opening speed of valve is too fast, be rapidly to flows downstream by the medium of valve, be easy to produce water hammer or gas hammer phenomenon, cause the damage of pipeline breaking and equipment, equally, valve is from opening state, progressively close, the medium originally flowed in the duct can progressively slow down, until stop flowing, if the closing velocity of valve is too fast, on the one hand, the synergy of kinetic energy and hydraulic power etc. that the too fast movement velocity of flap possesses, flap can produce larger impact force to valve seat, valve is caused easily to damage, affect the working life of valve, on the other hand, the originally medium of flowing fast, unexpected stopping, it kinetic energy possessed can produce too high pressure to pipeline and equipment, water hammer or gas hammer phenomenon can be produced equally, cause the damage of pipeline breaking and equipment.So, we wish the initial stage of latter stage at valve closing and unlatching, flap is in the adjacent domain of valve seat, flap can be made slowly to leave or close to valve seat, play the effect of slowly unlatching or slowly closing, avoid because impacting the pipeline breaking and device damage that cause, meanwhile, can ensure that again flap is in the adjacent domain away from valve seat, realizes the quick opening and closing of valve, therefore, a kind of brand-new valve buffer must be developed for above-mentioned requirements.
Summary of the invention
The object of the present invention is to provide a kind of valve buffer, at the latter stage of valve closing and the initial stage of unlatching, flap is in the adjacent domain of valve seat, flap can be made slowly to leave or close to valve seat, playing the effect of slowly unlatching or slowly closing, avoiding because impacting the pipeline breaking and device damage that cause, simultaneously, can ensure that again flap is in the adjacent domain away from valve seat, realizes the quick opening and closing of valve.This valve buffer is specially adapted to large-scale safety check.
In order to achieve the above object, main technical content of the present invention is as follows:
A kind of valve buffer, comprises left plunger, connecting sleeve, left piston bar, left end cap, cylinder body, piston, right end cap, right piston rod, right plunger; Have little inner chamber body and imperial palace cavity in described cylinder body, the left part of described cylinder body is connected with left end cap; The right part of described cylinder body is connected with right end cap; Described piston is arranged on the inside of cylinder body, and the left part of described piston is connected with the right-hand member of left piston bar, and the right part of described piston is connected with the left end of right piston rod; Described piston offers damping oil groove, described damping oil fluted shaft is to the cylindrical outer wall of through piston; The left end of described left piston bar is passed from left end cap by the little inner chamber body of cylinder body, and stretches in connecting sleeve inner chamber; The right-hand member of described right piston rod is passed from right end cap by the imperial palace cavity of cylinder body; The right-hand member of described connecting sleeve is connected with the left part of left end cap, and the left end of described connecting sleeve is connected with left plunger; The right-hand member of described right piston rod is connected with right plunger.
When above-mentioned piston moves in the imperial palace cavity of cylinder body, large annular pass is formed between the cylindrical outer wall of piston and the imperial palace cavity inner wall of cylinder body, the fluid of described piston left and right sides can by the mutual free-flow in large annular pass, and valve buffer is in servo-actuated working state; When described piston moves in the little inner chamber body of cylinder body, formed between the cylindrical outer wall of piston and the little inner chamber body inwall of cylinder body and coordinate, the fluid of described piston left and right sides can be flowed each other by the gap of damping oil groove and the outer wall of piston and the inwall of little inner chamber body, and produce corresponding damping, play buffer function, valve buffer is in buffering working state.
Above-mentioned cylinder body is provided with oil hole, and valve buffer can pass through oil hole oiling, and the oil hole on described cylinder body is sealed by plug and Sealing after valve buffer completes oiling.
Between the left part of above-mentioned cylinder body and left end cap, seal arrangement is installed, between the right part of described cylinder body and right end cap, seal arrangement is installed.
Be provided with between above-mentioned left piston bar and left end cap dust-proof, sealing, guiding device, be provided with between described right piston rod and right end cap dust-proof, sealing, guiding device.
Above-mentioned left plunger has left pin-and-hole, described right plunger has right pin-and-hole.
By technique scheme, the present invention at least has following advantages:
When valve opening or closedown, flap rotates, and realizes swinging by bearing pin drivening rod, and connecting rod produces the movement relative to cylinder body by right plunger, right piston rod driven plunger in cylinder body; In the initial stage of valve closing and the latter stage of unlatching, flap is away from the adjacent domain of valve seat, piston moves in the imperial palace cavity of cylinder body, large annular pass is formed between the cylindrical outer wall of piston and the imperial palace cavity inner wall of cylinder body, the fluid of piston left and right sides can by the mutual free-flow in large annular pass, flap moves freely under the effect of external force, and realize the quick opening and closing of valve, valve buffer is in servo-actuated working state; At the latter stage of valve closing and the initial stage of unlatching, flap is in the adjacent domain of valve seat, piston moves in the little inner chamber body of cylinder body, formed between the cylindrical outer wall of piston and the little inner chamber body inwall of cylinder body and coordinate, the fluid of piston left and right sides can be flowed each other by the gap of damping oil groove and piston outer wall and little inner chamber body inwall, and produces corresponding damping, flap can be made slowly to leave or close to valve seat, play buffer function, valve buffer is in buffering working state.
Use the present invention, valve, in the process of opening or close, can realize different working methods.Flap is away from the adjacent domain of valve seat, and valve buffer is in servo-actuated working state, does not have an impact to the movement velocity of flap, and valve realizes opening and closing fast; Flap is in the adjacent domain of valve seat, fluid flowing in valve buffer produces damping, flap is slowly left or close to valve seat, play buffer function, valve realizes slowly opening and closing, avoid valve to produce water hammer or gas hammer phenomenon in the process of opening or close, cause the damage of pipeline breaking and equipment.Above-mentioned valve buffer is specially adapted to large-scale safety check.
The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Accompanying drawing explanation
Structural representation when Fig. 1 is the present invention's servo-actuated working state;
Fig. 2 is the structural representation of the present invention when cushioning working state.
Embodiment
For further setting forth the present invention for the technological means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to its embodiment proposed according to the present invention, structure, feature and effect thereof, be described in detail as follows.
As shown in Figure 1 and Figure 2, a kind of valve buffer, comprises left plunger 1, connecting sleeve 2, left piston bar 4, left end cap 5, cylinder body 6, piston 8, right end cap 11, right piston rod 12, right plunger 13; Have little inner chamber body 7 and imperial palace cavity 10 in cylinder body 6, the left part of cylinder body 6 is connected with left end cap 5, and the right part of cylinder body 6 is connected with right end cap 11; Piston 8 is arranged on the inside of cylinder body 6, and the left part of piston 8 is connected with the right-hand member of left piston bar 4, and the right part of piston 8 is connected with the left end of right piston rod 12; Piston 8 offers damping oil groove 14, the cylindrical outer wall of the axial through piston 8 of damping oil groove 14; The left end of left piston bar 4 is passed from left end cap 5 by the little inner chamber body 7 of cylinder body 6, and stretches in connecting sleeve inner chamber 3; The right-hand member of right piston rod 12 is passed from right end cap 11 by the imperial palace cavity 10 of cylinder body 6, is provided with the devices such as dust-proof, sealing, guiding between right piston rod 12 and right end cap 11; The right-hand member of connecting sleeve 2 is connected with the left part of left end cap 5, and the left end of connecting sleeve 2 is connected with left plunger 1; The right-hand member of right piston rod 12 is connected with right plunger 13.
When piston 8 is mobile in the imperial palace cavity 10 of cylinder body 6, large annular pass 15 is formed between the cylindrical outer wall of piston 8 and imperial palace cavity 10 inwall of cylinder body 6, the fluid of described piston 8 left and right sides can by the free-flow each other of large annular pass 15, and valve buffer is in servo-actuated working state; When piston 8 is mobile in the little inner chamber body 7 of cylinder body 6, formed between the cylindrical outer wall of piston 8 and little inner chamber body 7 inwall of cylinder body 6 and coordinate, the fluid of piston 8 left and right sides can be flowed each other by the gap of damping oil groove 14 and the outer wall of piston 8 and the inwall of little inner chamber body 7, and produce corresponding damping, play buffer function, valve buffer is in buffering working state.
Preferably, above-mentioned cylinder body 6 is provided with oil hole, valve buffer can pass through oil hole oiling, and the oil hole on cylinder body 6 is sealed by plug 9 and Sealing after valve buffer completes oiling.
Preferably, between the left part of above-mentioned cylinder body 6 and left end cap 5, seal arrangement is installed, between the right part of cylinder body 6 and right end cap 11, seal arrangement is installed.
Preferably, the devices such as dust-proof, sealing, guiding are installed between above-mentioned left piston bar 4 and left end cap 5, the devices such as dust-proof, sealing, guiding are installed between right piston rod 12 and right end cap 11.
Preferably, left plunger 1 has left pin-and-hole 16, right plunger 13 has right pin-and-hole 17.
When valve opening or closedown, flap rotates, and realizes swinging by bearing pin drivening rod, and connecting rod produces the movement relative to cylinder body by right plunger 13, right piston rod 12 driven plunger 8 in cylinder body; In the initial stage of valve closing and the latter stage of unlatching, flap is away from the adjacent domain of valve seat, piston 8 is mobile in the imperial palace cavity 10 of cylinder body, large annular pass 15 is formed between the cylindrical outer wall of piston 8 and imperial palace cavity 10 inwall of cylinder body, the fluid of piston 8 left and right sides can by the free-flow each other of large annular pass 15, flap moves freely under the effect of external force, and realize the quick opening and closing of valve, valve buffer is in servo-actuated working state; At the latter stage of valve closing and the initial stage of unlatching, flap is in the adjacent domain of valve seat, piston 8 is mobile in the little inner chamber body 7 of cylinder body, formed between the cylindrical outer wall of piston 8 and little inner chamber body 7 inwall of cylinder body and coordinate, the fluid of piston 8 left and right sides can be flowed each other by the gap of damping oil groove 14 and piston 8 outer wall and little inner chamber body 7 inwall, and produce corresponding damping, flap can be made slowly to leave or close to valve seat, play buffer function, valve buffer is in buffering working state.
Use the present invention, valve, in the process of opening or close, can realize different working methods.Flap is away from the adjacent domain of valve seat, and valve buffer is in servo-actuated working state, does not have an impact to the movement velocity of flap, and valve realizes opening and closing fast; Flap is in the adjacent domain of valve seat, fluid flowing in valve buffer produces damping, flap is slowly left or close to valve seat, play buffer function, valve realizes slowly opening and closing, avoid valve to produce water hammer or gas hammer phenomenon in the process of opening or close, cause the damage of pipeline breaking and equipment.Above-mentioned valve buffer is specially adapted to large-scale safety check.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solution of the present invention, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (5)
1. a valve buffer, is characterized in that: comprise left plunger (1), connecting sleeve (2), left piston bar (4), left end cap (5), cylinder body (6), piston (8), right end cap (11), right piston rod (12), right plunger (13); Have little inner chamber body (7) and imperial palace cavity (10) in described cylinder body (6), described little inner chamber body (7) is directly connected with imperial palace cavity (10); The left part of described cylinder body (6) is connected with left end cap (5); The right part of described cylinder body (6) is connected with right end cap (11); Described piston (8) is arranged on the inside of cylinder body (6), the left part of described piston (8) is connected with the right-hand member of left piston bar (4), the right part of described piston (8) is connected with the left end of right piston rod (12), and the cylindrical outer wall of piston (8) does not arrange seal ring; The left end of described left piston bar (4) is passed from left end cap (5) by the little inner chamber body (7) of cylinder body (6), and stretches in connecting sleeve inner chamber (3); The right-hand member of described right piston rod (12) is passed from right end cap (11) by the imperial palace cavity (10) of cylinder body (6); The right-hand member of described connecting sleeve (2) is connected with the left part of left end cap (5), and the left end of described connecting sleeve (2) is connected with left plunger (1); The right-hand member of described right piston rod (12) is connected with right plunger (13).
2. valve buffer according to claim 1, it is characterized in that: when described piston (8) is mobile in the imperial palace cavity (10) of cylinder body (6), large annular pass (15) is formed between the cylindrical outer wall of piston (8) and imperial palace cavity (10) inwall of cylinder body (6), the fluid of described piston (8) left and right sides can by large annular pass (15) free-flow each other, and valve buffer is in servo-actuated working state; When described piston (8) is mobile in the little inner chamber body (7) of cylinder body (6), formed between the cylindrical outer wall of piston (8) and little inner chamber body (7) inwall of cylinder body (6) and coordinate, the fluid of described piston (8) left and right sides can be flowed each other by the gap of damping oil groove (14) and the outer wall of piston (8) and the inwall of little inner chamber body (7), and produce corresponding damping, play buffer function, valve buffer is in buffering working state.
3. valve buffer according to claim 1, it is characterized in that: (6) are provided with oil hole to described cylinder body, valve buffer can pass through oil hole oiling, and the oil hole on described cylinder body (6) is sealed by plug (9) and Sealing after valve buffer completes oiling.
4. valve buffer according to claim 1, is characterized in that: be provided with seal arrangement between the left part of described cylinder body (6) and left end cap (5), is provided with seal arrangement between the right part of described cylinder body (6) and right end cap (11).
5. valve buffer according to claim 1, is characterized in that: described left plunger (1) has left pin-and-hole (16), and described right plunger (13) has right pin-and-hole (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310033675.1A CN103090105B (en) | 2013-01-29 | 2013-01-29 | Valve buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310033675.1A CN103090105B (en) | 2013-01-29 | 2013-01-29 | Valve buffer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103090105A CN103090105A (en) | 2013-05-08 |
| CN103090105B true CN103090105B (en) | 2015-10-28 |
Family
ID=48203040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310033675.1A Expired - Fee Related CN103090105B (en) | 2013-01-29 | 2013-01-29 | Valve buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103090105B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593985A (en) * | 2015-10-14 | 2017-04-26 | 安徽华尔泰化工股份有限公司 | Gas making workshop hydraulic oil cylinder |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4377177A (en) * | 1979-04-16 | 1983-03-22 | Claycomb Jack R | Throttling mud choke apparatus |
| US5157806A (en) * | 1991-12-09 | 1992-10-27 | George Wartian | Door closing piston-cylinder assembly |
| WO1997033109A1 (en) * | 1996-03-07 | 1997-09-12 | Komatsu Ltd. | Check valve |
| CN2490023Y (en) * | 2001-06-06 | 2002-05-08 | 徐州矿物集团有限公司机电设备分公司 | Hydraulic anti-collision safety beam |
| CN101022058A (en) * | 2006-02-28 | 2007-08-22 | 浙江开关厂有限公司 | Gradual damping oil buffer |
| EP2103835A1 (en) * | 2008-03-17 | 2009-09-23 | Kayaba Industry Co., Ltd. | Damping valve |
| CN201326790Y (en) * | 2008-12-16 | 2009-10-14 | 常州格林电力机械制造有限公司 | Hydraulic damper for resisting exhaust counterforce of safety valve |
| CN201396390Y (en) * | 2009-05-13 | 2010-02-03 | 东南大学 | Stiction damper with adjustable damping force |
| CN201447992U (en) * | 2009-08-13 | 2010-05-05 | 伍志勇 | Damper for furniture |
| CN102792049A (en) * | 2010-03-10 | 2012-11-21 | 萱场工业株式会社 | Damping valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5438475A (en) * | 1977-08-30 | 1979-03-23 | Nippon Telegr & Teleph Corp <Ntt> | Damper |
-
2013
- 2013-01-29 CN CN201310033675.1A patent/CN103090105B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4377177A (en) * | 1979-04-16 | 1983-03-22 | Claycomb Jack R | Throttling mud choke apparatus |
| US5157806A (en) * | 1991-12-09 | 1992-10-27 | George Wartian | Door closing piston-cylinder assembly |
| WO1997033109A1 (en) * | 1996-03-07 | 1997-09-12 | Komatsu Ltd. | Check valve |
| CN2490023Y (en) * | 2001-06-06 | 2002-05-08 | 徐州矿物集团有限公司机电设备分公司 | Hydraulic anti-collision safety beam |
| CN101022058A (en) * | 2006-02-28 | 2007-08-22 | 浙江开关厂有限公司 | Gradual damping oil buffer |
| EP2103835A1 (en) * | 2008-03-17 | 2009-09-23 | Kayaba Industry Co., Ltd. | Damping valve |
| CN201326790Y (en) * | 2008-12-16 | 2009-10-14 | 常州格林电力机械制造有限公司 | Hydraulic damper for resisting exhaust counterforce of safety valve |
| CN201396390Y (en) * | 2009-05-13 | 2010-02-03 | 东南大学 | Stiction damper with adjustable damping force |
| CN201447992U (en) * | 2009-08-13 | 2010-05-05 | 伍志勇 | Damper for furniture |
| CN102792049A (en) * | 2010-03-10 | 2012-11-21 | 萱场工业株式会社 | Damping valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103090105A (en) | 2013-05-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103267168B (en) | Valve buffer | |
| CN103912698B (en) | A kind of bleeder valve | |
| CN203525753U (en) | Novel hydraulic breaking hammer | |
| CN103075570B (en) | Valve buffer | |
| CN203880155U (en) | Noise preventing check valve | |
| CN204201188U (en) | A kind of safety check with damping device | |
| CN203585454U (en) | Signal regulation type check valve | |
| CN103292028B (en) | Valve buffer | |
| CN103090105B (en) | Valve buffer | |
| CN103267167B (en) | Valve buffer | |
| CN103062491B (en) | Valve buffer | |
| CN205136944U (en) | Cut tackify damping siphuncle way attenuator | |
| CN103292027B (en) | Valve buffer | |
| CN203362943U (en) | Bidirectional damping multi-cavity gas spring | |
| CN204419758U (en) | A kind of buffering hydraulic cylinder | |
| CN103292026B (en) | Valve buffer | |
| CN105299126A (en) | Two-stage buffer with temperature detection device | |
| CN203926215U (en) | A kind of oil hydraulic cylinder | |
| CN202690042U (en) | Pressure balance bunker device of hydraulic pushing instrument | |
| CN103769511B (en) | Hydraulic linkage hydraulic counterblow hammer | |
| CN203939912U (en) | A kind of air spring | |
| CN205207522U (en) | Two -stage bumper provided with temperature detection device | |
| CN103062273B (en) | Damping-adjustable elastic clay buffer for vehicle | |
| CN206360962U (en) | Large_sized hydraulic cylinder with anti-rotation guide sleeve device | |
| CN205578596U (en) | Improved generation atmospheric pressure damping piston and use its atmospheric pressure damping bumper shock absorber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20151028 Termination date: 20190129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |