CN103090105A - Valve buffer - Google Patents
Valve buffer Download PDFInfo
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- CN103090105A CN103090105A CN2013100336751A CN201310033675A CN103090105A CN 103090105 A CN103090105 A CN 103090105A CN 2013100336751 A CN2013100336751 A CN 2013100336751A CN 201310033675 A CN201310033675 A CN 201310033675A CN 103090105 A CN103090105 A CN 103090105A
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- valve
- piston
- cylinder body
- inner chamber
- end cap
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Abstract
The invention relates to a valve buffer. When a valve of the valve buffer is opened or closed, a valve clack rotates to drive a connecting rod to achieve swing and a connecting rod drives a position to produce relative motion in a cylinder body. In an initial stage of the closing of a valve and a late stage of the opening of the valve, the valve clack is far away from an adjacent area of a valve seat. The piston moves in a large inner cavity of the cylinder body. Oil of the left side and the right side of the poison can flow freely in a mutual mode through a large annular channel, wherein the large annular channel is formed between the outer wall of a cylinder and the inner wall of the large annular channel. The valve clack moves freely under the action of external force to achieve rapid opening and rapid closing of the valve. In the late stage of the closing of the valve and the initial stage of the opening of the valve, the valve clack is located in the adjacent area of the valve seat. The poison moves in the small cavity of the cylinder body. The outer wall of the cylinder of the poison and the inner wall of the small cavity can form a matching. The oil of the left side and the right side of the poison can flow mutually through gaps, wherein the gaps are formed among a damping oil groove, the outer wall of the poison and the inner wall of the small cavity. Corresponding damping effects can be produced. The valve clack can leave or approach the valve seat slowly to produce a buffering effect.
Description
Technical field
The present invention relates to a kind of hydraulic bjuffer, especially a kind of valve buffer.
Background technique
At present, pipeline is carried and is widely used in electric power, oil, chemical industry, iron and steel and other fields, and the medium that pipeline is carried comprises liquids and gases etc.in carrying, pipeline inevitably need to use valve, valve is from closed condition, progressively open, ducted fed sheet of a media will be by valve to dirty motion, if the opening speed of valve is too fast, medium by valve flows to dirty rapidly, is easy to produce water hammer or gas hammer phenomenon, causes the damage of pipeline breaking and equipment, equally, valve is from opening state, progressively close, the medium that originally flows in pipeline can progressively slow down, until stop flowing, if the closing velocity of valve is too fast, on the one hand, the synergy of the kinetic energy that the too fast movement velocity of flap possesses and hydraulic power etc., flap can produce larger impact force to valve seat, cause valve easily to damage, affect the working life of valve, on the other hand, the original medium of rapid flow, cut, it kinetic energy that possesses can produce too high pressure to pipeline and equipment, can produce water hammer or gas hammer phenomenon equally, cause the damage of pipeline breaking and equipment.So, we wished at the latter stage of valve closing and the initial stage of unlatching, flap is in the adjacent domain of valve seat, flap is slowly left or near valve seat, play the effect of slow unlatching or slowly closing, avoid the pipeline breaking and the device damage that cause because of impact, simultaneously, can guarantee that again flap in the adjacent domain away from valve seat, realizes the quick opening and closing of valve, therefore, must develop a kind of brand-new valve buffer 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 is slowly left or near valve seat, play the effect of slow unlatching or slowly closing, avoid the pipeline breaking and the device damage that cause because of impact, simultaneously, can guarantee that again flap 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 (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 large inner chamber body (10) in described cylinder body (6), 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), and the left part of described piston (8) is connected with the right-hand member of left piston bar (4), and the right part of described piston (8) is connected with the left end of right piston rod (12); Offer damping oil groove (14) on described piston (8), described damping oil groove (14) axially connects the cylindrical outer wall of piston (8); The left end of described left piston bar (4) passes 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) passes from right end cap (11) by the large inner chamber body (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).
When above-mentioned piston (8) is mobile in the large inner chamber body (10) of cylinder body (6), form large annular pass (15) between large inner chamber body (10) inwall of the cylindrical outer wall of piston (8) and cylinder body (6), the fluid of described piston (8) left and right sides can be by large annular pass (15) free-flow each other, and the 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), form between little inner chamber body (7) inwall of the cylindrical outer wall of piston (8) and cylinder body (6) and coordinate, flow each other in the gap of the outer wall that the fluid of described piston (8) left and right sides can be by damping oil groove (14) and piston (8) and the inwall of little inner chamber body (7), and produce corresponding damping, play buffer function, the valve buffer is in the buffering working state.
Above-mentioned cylinder body is provided with oil hole on (6), and the valve buffer can pass through the oil hole oiling, and the oil hole on described cylinder body (6) seals by plug (9) and Sealing after the valve buffer is completed oiling.
Between the left part of above-mentioned cylinder body (6) and left end cap (5), seal arrangement is installed, between the right part of described cylinder body (6) and right end cap (11), seal arrangement is installed.
Dustproof, sealing, guiding device are installed between above-mentioned left piston bar (4) and left end cap (5), dustproof, sealing, guiding device are installed between described right piston rod (12) and right end cap (11).
Have left pin-and-hole (16) on above-mentioned left plunger (1), have right pin-and-hole (17) on described right plunger (13).
By technique scheme, the present invention has following advantages at least:
Valve opening or when closing, flap rotates, and realize swinging by the bearing pin drivening rod, connecting rod produces the movement with respect 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 large inner chamber body of cylinder body, form large annular pass between the imperial palace cavity inner wall of the cylindrical outer wall of piston and cylinder body, the fluid of piston left and right sides can be by the mutual free-flow in large annular pass, flap moves freely under the effect of external force, realizes the quick opening and closing of valve, and the 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, form between the little inner chamber body inwall of the cylindrical outer wall of piston and cylinder body and coordinate, the fluid of piston left and right sides can flow in the gap by damping oil groove and piston outer wall and little inner chamber body inwall each other, and produces corresponding damping, flap is slowly left or near valve seat, play buffer function, the valve buffer is in the buffering working state.
Use the present invention, valve can be realized different working methods in the process of opening or closing.Flap is away from the adjacent domain of valve seat, and the valve buffer is in servo-actuated working state, the movement velocity of flap is not exerted an influence, and valve is realized quick opening and closing; Flap is in the adjacent domain of valve seat, fluid in the valve buffer flows and produces damping, flap is slowly left or near valve seat, play buffer function, valve is realized slow opening and closing, avoid valve to produce water hammer or gas hammer phenomenon in the process of opening or closing, 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.
Description of drawings
Structural representation when Fig. 1 is the servo-actuated working state of the present invention;
Fig. 2 is the structural representation of the present invention when cushioning working state.
Embodiment
Reach for further setting forth the present invention technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, its embodiment, structure, feature and effect thereof to foundation the present invention proposes are 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 large inner chamber body 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; Offer damping oil groove 14 on piston 8, damping oil groove 14 axially connects the cylindrical outer wall of piston 8; The left end of left piston bar 4 passes 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 passes from right end cap 11 by the large inner chamber body 10 of cylinder body 6, and the devices such as dustproof, sealing, guiding are installed 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.
Piston 8 is interior when mobile in the large inner chamber body 10 of cylinder body 6, form large annular pass 15 between large inner chamber body 10 inwalls of the cylindrical outer wall of piston 8 and cylinder body 6, the fluid of described piston 8 left and right sides can be by the mutual free-flow in large annular pass 15, and the valve buffer is in servo-actuated working state; Piston 8 is interior when mobile in the little inner chamber body 7 of cylinder body 6, form between little inner chamber body 7 inwalls of the cylindrical outer wall of piston 8 and cylinder body 6 and coordinate, flow each other in the gap of the outer wall that the fluid of piston 8 left and right sides can be by damping oil groove 14 and piston 8 and the inwall of little inner chamber body 7, and produce corresponding damping, play buffer function, the valve buffer is in the buffering working state.
As preferred version, be provided with oil hole on above-mentioned cylinder body 6, the valve buffer can pass through the oil hole oiling, and the oil hole on cylinder body 6 seals by plug 9 and Sealing after the valve buffer is completed oiling.
As preferred version, 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.
As preferred version, the devices such as dustproof, sealing, guiding are installed between above-mentioned left piston bar 4 and left end cap 5, the devices such as dustproof, sealing, guiding are installed between right piston rod 12 and right end cap 11.
As preferred version, have left pin-and-hole 16 on left plunger 1, have right pin-and-hole 17 on right plunger 13.
Valve opening or when closing, flap rotates, and realize swinging by the bearing pin drivening rod, connecting rod produces the movement with respect 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 in the interior movement of large inner chamber body 10 of cylinder body, form large annular pass 15 between large inner chamber body 10 inwalls of the cylindrical outer wall of piston 8 and cylinder body, the fluid of piston 8 left and right sides can be by the mutual free-flow in large annular pass 15, flap moves freely under the effect of external force, realizes the quick opening and closing of valve, and the 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 in the interior movement of little inner chamber body 7 of cylinder body, form between little inner chamber body 7 inwalls of the cylindrical outer wall of piston 8 and cylinder body and coordinate, the fluid of piston 8 left and right sides can flow each other by the gap of damping oil groove 14 and piston 8 outer walls and little inner chamber body 7 inwalls, and produce corresponding damping, flap is slowly left or near valve seat, play buffer function, the valve buffer is in the buffering working state.
Use the present invention, valve can be realized different working methods in the process of opening or closing.Flap is away from the adjacent domain of valve seat, and the valve buffer is in servo-actuated working state, the movement velocity of flap is not exerted an influence, and valve is realized quick opening and closing; Flap is in the adjacent domain of valve seat, fluid in the valve buffer flows and produces damping, flap is slowly left or near valve seat, play buffer function, valve is realized slow opening and closing, avoid valve to produce water hammer or gas hammer phenomenon in the process of opening or closing, 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, be not that the present invention is done any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet be not to limit the present invention, any those skilled in the art, within not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, any simple modification that foundation 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 (6)
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 large inner chamber body (10) in described cylinder body (6), 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), and the left part of described piston (8) is connected with the right-hand member of left piston bar (4), and the right part of described piston (8) is connected with the left end of right piston rod (12); Offer damping oil groove (14) on described piston (8), described damping oil groove (14) axially connects the cylindrical outer wall of piston (8); The left end of described left piston bar (4) passes 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) passes from right end cap (11) by the large inner chamber body (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 large inner chamber body (10) of cylinder body (6), form large annular pass (15) between large inner chamber body (10) inwall of the cylindrical outer wall of piston (8) and cylinder body (6), the fluid of described piston (8) left and right sides can be by large annular pass (15) free-flow each other, and the 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), form between little inner chamber body (7) inwall of the cylindrical outer wall of piston (8) and cylinder body (6) and coordinate, flow each other in the gap of the outer wall that the fluid of described piston (8) left and right sides can be by damping oil groove (14) and piston (8) and the inwall of little inner chamber body (7), and produce corresponding damping, play buffer function, the valve buffer is in the buffering working state.
3. valve buffer according to claim 1, it is characterized in that: described cylinder body is provided with oil hole on (6), the valve buffer can pass through the oil hole oiling, and the oil hole on described cylinder body (6) seals by plug (9) and Sealing after the valve buffer is completed oiling.
4. valve buffer according to claim 1, is characterized in that: between the left part of described cylinder body (6) and left end cap (5), seal arrangement is installed, between the right part of described cylinder body (6) and right end cap (11), seal arrangement is installed.
5. valve buffer according to claim 1, it is characterized in that: dustproof, sealing, guiding device are installed between described left piston bar (4) and left end cap (5), dustproof, sealing, guiding device are installed between described right piston rod (12) and right end cap (11).
6. valve buffer according to claim 1, is characterized in that: have left pin-and-hole (16) on described left plunger (1), have right pin-and-hole (17) on described right plunger (13).
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 true CN103090105A (en) | 2013-05-08 |
| CN103090105B 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) |
Cited By (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 (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5438475A (en) * | 1977-08-30 | 1979-03-23 | Nippon Telegr & Teleph Corp <Ntt> | Damper |
| 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 |
-
2013
- 2013-01-29 CN CN201310033675.1A patent/CN103090105B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5438475A (en) * | 1977-08-30 | 1979-03-23 | Nippon Telegr & Teleph Corp <Ntt> | Damper |
| 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 |
Cited By (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 |
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| Publication number | Publication date |
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| CN103090105B (en) | 2015-10-28 |
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Granted publication date: 20151028 Termination date: 20190129 |