CN2625683Y - double-pipeline safety valve - Google Patents
double-pipeline safety valve Download PDFInfo
- Publication number
- CN2625683Y CN2625683Y CN 03254678 CN03254678U CN2625683Y CN 2625683 Y CN2625683 Y CN 2625683Y CN 03254678 CN03254678 CN 03254678 CN 03254678 U CN03254678 U CN 03254678U CN 2625683 Y CN2625683 Y CN 2625683Y
- Authority
- CN
- China
- Prior art keywords
- spool
- oil inlet
- valve body
- inlet hole
- oil
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 238000006073 displacement reaction Methods 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims abstract description 4
- 230000009977 dual effect Effects 0.000 claims description 11
- 239000000725 suspension Substances 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 21
- 239000012530 fluid Substances 0.000 description 11
- 239000010720 hydraulic oil Substances 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
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- Safety Valves (AREA)
Abstract
A double-pipeline safety valve comprises end covers (1) arranged at two ends of a valve body (4) through connecting pieces, and a valve core (3) positioned in a hollow cavity of the valve body (4), wherein oil inlet holes (9) communicated with the hollow cavity of the valve body (4) are respectively processed on the two end covers (1); the valve core (3) is arranged in a hollow cavity of the valve body (4) in a movable fit mode; a sealing surface which is mutually matched is arranged between the outlet end of the oil inlet hole (9) on the end cover (1) and the end surface of the valve core (3); a counter bore (6) is respectively processed on the left end surface and the right end surface of the valve core (3), and a limiting spring for limiting the left displacement and the right displacement of the valve core (3) is arranged in a spring installation cavity formed by the counter bore (6) and an oil inlet (9). Because the safety valve adopts the design idea of double-pipeline oil supply, when one pipeline is exploded in work, the valve core can immediately seal the oil drain port under the action of pressure oil and simultaneously can continuously supply oil to the execution element, the normal work of the suspension system is maintained, and the safety of the suspension system is improved.
Description
(1) technical field
The utility model relates to a kind of deadweight safety valve, relates to the extraordinary all-hydraulic power car dual circuit safety valve of a kind of heavy duty specifically.
(2) background technique
In the design of Hydraulic System of the extraordinary all-hydraulic power car of heavy duty, usually need to prevent hydraulic fluid leak, especially when suddenly explosion taking place, promptly to guarantee the Security of operation mechanism at pipeline (sebific duct), prevent the continuous release of hydraulic oil again, befouling environment.And at present domestic what generally adopt is bidirectional hydraulic lock, and when breaking down, it can only be with the hydraulic oil sealing in oil cylinder, and powerless to the fuel feeding of system, makes hanging oil cylinder ineffective immediately, the promptly dangerous resource of wasting again.
(3) summary of the invention
The purpose of this utility model provides at existing problem in the above-mentioned prior art just a kind ofly is particularly suitable for the extraordinary all-hydraulic power car dual circuit safety valve of heavy duty.
Dual circuit safety valve of the present utility model comprises the end cap that is installed in the valve body two ends by link, and the spool that is positioned at the valve body hollow cavity, respectively is processed with the oil inlet hole of a connection valve body hollow cavity on the described two end cap; Described spool is installed in the valve body hollow cavity by mode movingly; Be positioned at the sealing surface for cooperatively interacting between the end face of the outlet end of the oil inlet hole on the end cap and spool; Respectively be processed with a counterbore on the left and right both ends of the surface of described spool, the limit spring that is used to limit the left and right displacement of spool is installed in the spring installation cavity that is made of counterbore and oil inlet hole.
Inside and outside conical seal (contact) face for matching between the outlet end that is positioned at the oil inlet hole on the end cap in the utility model and the end face of spool, and the tapering of the male cone (strobilus masculinus) of the inner conical surface of oil inlet hole outlet end and spool two end faces is 60 ° on the end cap.
Also can be the spherical arc shape sealing surface that matches between the outlet end that is positioned at oil inlet hole on the end cap in the utility model and the end face of spool.
Working principle of the present utility model is as follows:
Under nominal situation, spool is in the meta of body cavity under the effect of two ends centering limit spring, system by dual circuit safety valve two end cap to A, B hydraulic fluid port fuel feeding, by the reserved passageway between spool and the valve body to hydraulic fluid port C and hanging oil cylinder fuel feeding.When because of accidental cause, when wherein arbitrary pipeline explosion or leakage (as the A mouth), spool is under the effect of respective side hydraulic oil, (to the A mouth) moves fast, utilize the linear sealing that forms between the oil inlet hole outlet end inner conical surface on the male cone (strobilus masculinus) of spool end and the end cap, with hydraulic fluid port (A) sealing, and hydraulic oil can continue by another hydraulic fluid port (B) to make the suspension system oil cylinder continue to play a role to the oil cylinder fuel feeding.
The utility model can use separately also and can use in pairs according to system design.When using in pairs, one and hanging oil cylinder (plunger case) filler opening connects firmly, and enters safety valve from A, B hydraulic fluid port, enters oil cylinder from the C hydraulic fluid port; It two is installed in the pipeline, and is from the oil-feed of C hydraulic fluid port, fuel-displaced from A, B hydraulic fluid port.When using separately, safety valve and oil cylinder filler opening connect firmly, and hydraulic oil enters safety valve from A, B hydraulic fluid port, enters oil cylinder from the C hydraulic fluid port.Both structures are basic identical.
Because dual circuit safety valve of the present utility model is that hydraulic suspension is the requisite crucial constituent elements of heavily loaded extraordinary hydraulic power flatcar, the use of this safety valve can make significantly improve the working life of suspension, can improve the Security in the vehicle heavy service, have important promotional value and wide use prospect.
(4) drawing explanation
Accompanying drawing is that master of the present utility model cuts open figure.
1 is end cap among the figure, the 2nd, and limit spring, the 3rd, spool, the 4th, valve body, the 5th, O shape circle, the 6th, the counterbore that processes on the spool end, the 7th, the male cone (strobilus masculinus) of spool two end faces, the 8th, the inner conical surface of oil inlet hole outlet end, the 9th, oil inlet hole.
(5) embodiment
The utility model is further described below with reference to embodiment's (accompanying drawing):
As shown in the figure, dual circuit safety valve of the present utility model comprises the end cap (1) that is installed in valve body (4) two ends by link, and the spool (3) that is positioned at valve body (4) hollow cavity, respectively be processed with an oil inlet hole (9) that is communicated with valve body (4) hollow cavity on the described two end cap (1); Described spool (3) is installed in valve body (4) hollow cavity by mode movingly; The mode that matches with the inside and outside conical surface between the outlet end that is positioned at the oil inlet hole (9) on the end cap (1) and the end face of spool (3) is installed together; Respectively be processed with a counterbore (6) on the left and right both ends of the surface of described spool (3), the limit spring that is used to limit the left and right displacement of spool (3) is installed in the spring installation cavity that is made of counterbore (6) and oil inlet hole (9); The tapering of the inner conical surface (8) of the last oil inlet hole outlet end of end cap described in the utility model (1) and the male cone (strobilus masculinus) (7) of spool (3) two end faces is 60 °.
Assembly relation of the present utility model is as follows: be parent with valve body (4) during assembling, in the seat hole of spool (3) both sides of earlier spring (2) being packed into, put into the through hole of valve body (4) then, pushing away with have gentle hands not to have the jam phenomenon; O shape circle (5) is contained on the end cap (1), and is connected with valve body (4) with bolt.
Claims (4)
1, a kind of dual circuit safety valve, it comprises the end cap (1) that is installed in valve body (4) two ends by link, and the spool (3) that is positioned at valve body (4) hollow cavity, it is characterized in that: the oil inlet hole (9) that respectively is processed with connection valve body (a 4) hollow cavity on the described two end cap (1); Described spool (3) is installed in valve body (4) hollow cavity by mode movingly; Be positioned at the sealing surface for cooperatively interacting between the end face of the outlet end of the oil inlet hole (9) on the end cap (1) and spool (3); Respectively be processed with a counterbore (6) on the left and right both ends of the surface of described spool (3), the limit spring that is used to limit the left and right displacement of spool (3) is installed in the spring installation cavity that is made of counterbore (6) and oil inlet hole (9).
2, dual circuit safety valve according to claim 1 is characterized in that: the inside and outside conical seal (contact) face for matching between the outlet end that is positioned at the oil inlet hole (9) on the end cap (1) and the end face of spool (3).
3, dual circuit safety valve according to claim 2 is characterized in that: the tapering of the inner conical surface (8) of the last oil inlet hole outlet end of end cap (1) and the male cone (strobilus masculinus) (7) of spool (3) two end faces is 60 °.
4, dual circuit safety valve according to claim 1 is characterized in that: the spherical arc shape sealing surface for matching between the outlet end that is positioned at the oil inlet hole (9) on the end cap (1) and the end face of spool (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03254678 CN2625683Y (en) | 2003-06-29 | 2003-06-29 | double-pipeline safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03254678 CN2625683Y (en) | 2003-06-29 | 2003-06-29 | double-pipeline safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2625683Y true CN2625683Y (en) | 2004-07-14 |
Family
ID=34253634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03254678 Expired - Lifetime CN2625683Y (en) | 2003-06-29 | 2003-06-29 | double-pipeline safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2625683Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537449A (en) * | 2011-12-07 | 2012-07-04 | 三一重型装备有限公司 | Bidirectional self-adaptive damping valve |
| CN103453177A (en) * | 2013-08-13 | 2013-12-18 | 集美大学 | Dual-pipeline hydraulic safety valve |
| CN103615425A (en) * | 2013-09-18 | 2014-03-05 | 太原市京丰铁路电务器材制造有限公司 | Starting cylinder device of shuttle-type balance valve |
| CN104061348A (en) * | 2014-03-25 | 2014-09-24 | 湖北三江航天万山特种车辆有限公司 | Double pipeline hose explosion valve with adjustable action flow rate |
-
2003
- 2003-06-29 CN CN 03254678 patent/CN2625683Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537449A (en) * | 2011-12-07 | 2012-07-04 | 三一重型装备有限公司 | Bidirectional self-adaptive damping valve |
| CN102537449B (en) * | 2011-12-07 | 2013-08-28 | 三一重型装备有限公司 | Bidirectional self-adaptive damping valve |
| CN103453177A (en) * | 2013-08-13 | 2013-12-18 | 集美大学 | Dual-pipeline hydraulic safety valve |
| CN103453177B (en) * | 2013-08-13 | 2016-01-20 | 集美大学 | A kind of Dual-pipeline hydraulic safety valve |
| CN103615425A (en) * | 2013-09-18 | 2014-03-05 | 太原市京丰铁路电务器材制造有限公司 | Starting cylinder device of shuttle-type balance valve |
| CN104061348A (en) * | 2014-03-25 | 2014-09-24 | 湖北三江航天万山特种车辆有限公司 | Double pipeline hose explosion valve with adjustable action flow rate |
| CN104061348B (en) * | 2014-03-25 | 2016-04-27 | 湖北三江航天万山特种车辆有限公司 | The dual circuit flexible pipe explosive valve that action flow is adjustable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHENGZHOU DAFANG BRIDGE-MACHINE CO., LTD. Free format text: FORMER NAME: ZHENGZHOU DAFANG BRIDGE MACHINERY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 450064 No. 1 Minghui Road, Ma Zhuang Town, Henan, Zhengzhou Patentee after: Zhengzhou New Dafang Heavy Industries & Technology Co., Ltd. Address before: 10201 mailbox 450005, Henan City, Zhengzhou Province Patentee before: Zhengzhou Dafang Bridge Machinery Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130629 Granted publication date: 20040714 |