CN203880000U - Safety valve used for viscous damper - Google Patents
Safety valve used for viscous damper Download PDFInfo
- Publication number
- CN203880000U CN203880000U CN201320860361.4U CN201320860361U CN203880000U CN 203880000 U CN203880000 U CN 203880000U CN 201320860361 U CN201320860361 U CN 201320860361U CN 203880000 U CN203880000 U CN 203880000U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve pocket
- fixed block
- spool
- safety valve
- 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
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Safety Valves (AREA)
Abstract
The utility model relates to the technical field of valves, in particular to a safety valve used for a viscous damper. The safety valve comprises (1) a valve pocket, (2) fixed blocks, (3) a valve core and (4) springs. The top end of the valve pocket is opened and the bottom end of the valve pocket is provided with a liquid outlet. A valve chamber is arranged in the valve pocket. The fixed blocks are fixed at the upper portion of the valve chamber and provided with axial through holes. The valve core is located at the lower portion of the valve chamber and has one side, facing towards the fixed blocks, provided with a sealing surface which is connected with the axial through holes of the fixing blocks in a matching manner. The springs, located at one side, far from the fixed blocks, of the valve core and have two ends respectively connected with the valve core and the bottom end of the valve pocket. The safety valve used for the viscous damper has following beneficial effects: when the viscous damper overloads and has other accident conditions, pressure is released by opening an axial channel of the safety valve so that damage caused by over-limit internal pressure of the viscous damper is effectively prevented.
Description
Technical field
The utility model belongs to valve technology field, relates in particular to a kind of safety valve for viscous damper.
Background technique
The 1950's, viscous damper is applied in machinery, vehicle, space flight and military engineering as a kind of good energy-dissipating and shock-absorbing (shaking) construction element, introduced the industries such as building, bridge, railway, power plant, steel mill the seventies by people and be used for resisting earthquake, wind shakes or other external load causes vibration, obtained good effect.Along with the fast development of structural damping (shaking) industry, viscous damper is also progressively developed and applies at China's civil engineering field in recent years, is progressively applied in the engineerings such as bridge works, tall building and equipment Foundations.But it is as a kind of structural defence member, wait accident conditions once meet with overload, usually can be subject to very holocaust, cause later period maintenance or replacing quantity is more, cost is higher.
Therefore, be badly in need of providing a kind of novel safety valve for viscous damper.
Model utility content
(1) technical problem that will solve
The purpose of this utility model is to provide a kind of safety valve for viscous damper, to overcome the defect that in prior art, viscous damper is damaged in the time there is the accidents such as overload.
(2) technological scheme
For solving the problems of the technologies described above, the utility model provides a kind of safety valve for viscous damper, and it comprises:
(1) valve pocket, the top of described valve pocket is uncovered, and bottom is provided with liquid outlet, and the inside of described valve pocket is provided with valve pocket;
(2) fixed block, described fixed block is fixed on the top of described valve pocket, on described fixed block, is provided with axial hole;
(3) spool, described spool is positioned at the bottom of described valve pocket, described spool towards a side of described fixed block be provided with described fixed block on the sealing surface that is connected of axial hole;
(4) spring, described spring is positioned at the side of described spool away from described fixed block, and the two ends of described spring are connected with the bottom of described valve pocket with described spool respectively.
Wherein, described valve pocket comprises uuper valve chamber and is communicated with described uuper valve chamber and transverse dimension is less than the lower valve chamber of described uuper valve chamber; Described fixed block leans against between described lower valve chamber and described hole back-up ring with back-up ring folder by hole.
Wherein, described fixed block is threaded connection the top that is fixed on described valve pocket.
Wherein, be provided with from the outwardly holding division of described valve pocket outer wall on the top of described valve pocket outer wall, be provided with groove in the bottom of described valve pocket outer wall, the distance between described holding division and described groove equals the thickness of piston head.
Wherein, be respectively arranged with groove in described valve pocket outer wall upper and lower, the distance between described two grooves equals the thickness of piston head.
Wherein, on described valve pocket outer wall, be provided with screw thread.
Wherein, described spring is butterfly spring.
Wherein, described fixed block and described spool are made up of Hardmetal materials.
(3) beneficial effect
The safety valve for viscous damper that technique scheme provides, comprise valve pocket and be positioned at the spool of valve pocket, spring and fixed block, wherein, one end of spool is provided with plug, viscous damper is under nominal situation, under the effect of spring, axial hole on this plug and fixed block is connected, so that the axial passage in valve pocket is closed, and when viscous damper is under the accident conditionses such as overload, while being greater than the elastic force of spring action on spool due to the power on spool of acting on, spring is compressed, cause plug and axial hole to depart from and carry out pressure release, thereby preventing that viscous damper internal pressure from transfiniting destroys.
Brief description of the drawings
Fig. 1 is according to the structural representation of a kind of safety valve for viscous damper of the present utility model.
Wherein: 1-valve pocket; 2-spool; 3-spring; 4-hole back-up ring; 5-fixed block; 6-groove.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is further described.Following examples are used for illustrating the utility model, but are not used for limiting scope of the present utility model.
In description of the present utility model, it should be noted that, term " on ", orientation or the position relationship of the instruction such as D score, " interior ", " outward " be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, construct and operation with specific orientation, therefore can not be interpreted as restriction of the present utility model.
Figure 1 shows that a preferred embodiment of a kind of safety valve for viscous damper of the present utility model.According to this embodiment, this safety valve comprises valve pocket 1 and is positioned at the spool 2 of valve pocket 1, spring 3 and fixed block 5.
Wherein, the top of valve pocket 1 is uncovered, and bottom is provided with liquid outlet.The inside of valve pocket 1 forms a valve pocket, and above-mentioned valve pocket forms axial passage.Fixed block 5 is fixed on the top of valve pocket, on fixed block 5, is provided with axial hole.Spool 2 is positioned at the bottom of valve pocket, for closure or openness axial passage.Particularly, spool 2 towards a side of fixed block 5 be provided with can with fixed block 5 on the plug that is connected of axial hole, this plug can be cylindrical boss or conical boss.Spring 3 is positioned at the side of spool 2 away from fixed block 5, and its two ends are connected with the bottom of spool 2 and valve pocket 1 respectively.By Compress Spring 3, spool 2 can slide in the valve pocket of valve pocket 1, so that plug and axial hole on spool 2 are connected, be that plug on spool 2 can be inserted in axial hole, and through hole moves up and down vertically, in the time that plug is positioned at axial hole, can be by the axial passage closure in valve pocket.
Particularly, valve pocket is divided into uuper valve chamber and is communicated with uuper valve chamber and transverse dimension is less than the lower valve chamber of uuper valve chamber, and fixed block 5 is positioned at the uuper valve chamber of valve pocket 1, and uses back-up ring 4 folders to lean against between lower valve chamber and hole back-up ring 4 by hole.It should be noted that, fixed block 5 also can be threaded connection and be fixed in valve pocket.
Further, in order to improve the anti-wear of surface of contact between spool 2 plugs and fixed block 5, extend the working life of safety valve, preferably spool 2 and fixed block 5 form by Hardmetal materials is refining.
When in the piston head that safety valve is arranged on to damper, under nominal situation, be that pressure in damper is within allowed band time, the elastic force of the spring 3 compressed rear generations in safety valve is pressed on spool 2 on fixed block 5, now the plug on spool 2 stretches in the axial hole in fixed block 5, to make arranged at safety valve in closed state; In the time of the rising of viscous damper internal valve cavity pressure and overrate; when the power on spool 2 of acting on is greater than spring 3 and acts on the elastic force on spool 2; spring 3 is compressed; in the time that compression stroke is greater than the height of spool 2 plugs, the axial hole at the plug of spool 2 and fixed block 5 middle parts departs from, now; axial passage in valve pocket 1 is in connected state; be arranged at safety valve in opening state, thereby by the valve pocket pressure pressure release in viscous damper, with play protection viscous damper effect.
Further, top at valve pocket 1 outer wall is provided with the holding division outwardly from valve pocket outer wall, be provided with groove 6 in the bottom of valve pocket outer wall, distance between this holding division and groove 6 equals the thickness of piston head, to safety valve is inserted in the mounting hole of piston head of damper, and insert by shaft block ring that groove 6 is interior fixes safety valve.
In another embodiment, be respectively arranged with groove in valve pocket outer wall upper and lower, the distance between these two grooves equals the thickness of piston head, to safety valve is fixed on the piston head of damper by shaft block ring respectively at the two ends of safety valve.
In an embodiment again, on valve pocket 1 outer wall, be provided with screw thread (not shown), to be threaded connection, safety valve is arranged on the piston head of viscous damper.
Above mode of execution is only for the utility model is described, and is not limitation of the utility model, and the those of ordinary skill in relevant technologies field, in the situation that not departing from spirit and scope of the present utility model, can also make a variety of changes and modification.Therefore all technological schemes that are equal to also belong to protection category of the present utility model.
Claims (6)
1. for a safety valve for viscous damper, it is characterized in that,
(1) valve pocket, the top of described valve pocket is uncovered, and bottom is provided with liquid outlet, and the inside of described valve pocket is provided with valve pocket;
(2) fixed block, described fixed block is fixed on the top of described valve pocket, on described fixed block, is provided with axial hole, and described valve pocket comprises uuper valve chamber and is communicated with described uuper valve chamber and transverse dimension is less than the lower valve chamber of described uuper valve chamber; Described fixed block is threaded connection the top that is fixed on described valve pocket, and described fixed block leans against between described lower valve chamber and described hole back-up ring with back-up ring folder by hole;
(3) spool, described spool is positioned at the bottom of described valve pocket, described spool towards a side of described fixed block be provided with described fixed block on the sealing surface that is connected of axial hole;
(4) spring, described spring is positioned at the side of described spool away from described fixed block, and the two ends of described spring are connected with the bottom of described valve pocket with described spool respectively.
2. safety valve according to claim 1, is characterized in that, is provided with from the outwardly holding division of described valve pocket outer wall on the top of described valve pocket outer wall, is provided with groove in the bottom of described valve pocket outer wall.
3. according to the safety valve described in any one in claim 1-2, it is characterized in that, be respectively arranged with groove in described valve pocket outer wall upper and lower.
4. according to the safety valve described in any one in claim 1-2, it is characterized in that, on described valve pocket outer wall, be provided with screw thread.
5. according to the safety valve described in any one in claim 1-2, it is characterized in that, described spring is butterfly spring.
6. according to the safety valve described in any one in claim 1-2, it is characterized in that, described fixed block and described spool are made up of Hardmetal materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320860361.4U CN203880000U (en) | 2013-12-24 | 2013-12-24 | Safety valve used for viscous damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320860361.4U CN203880000U (en) | 2013-12-24 | 2013-12-24 | Safety valve used for viscous damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203880000U true CN203880000U (en) | 2014-10-15 |
Family
ID=51680499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320860361.4U Expired - Lifetime CN203880000U (en) | 2013-12-24 | 2013-12-24 | Safety valve used for viscous damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203880000U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443641A (en) * | 2014-08-06 | 2016-03-30 | 许炎章 | Valve seat with pressure resistance |
-
2013
- 2013-12-24 CN CN201320860361.4U patent/CN203880000U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443641A (en) * | 2014-08-06 | 2016-03-30 | 许炎章 | Valve seat with pressure resistance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 102402 No.32, Guangmao Road, Doudian Town, Fangshan District, Beijing Patentee after: Beijing Jiuzhou first rail Environmental Technology Co.,Ltd. Address before: 100026, Beijing Zhongguancun Daxing District science and Technology Park Daxing pharmaceutical industry base, Tianhe West Road, No. 28, a 1-2 floor Patentee before: BEIJING JIUZHOUYIGUI SHOCK AND VIBRATION ISOLATION Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141015 |