CN2848657Y - Emergency valve - Google Patents
Emergency valve Download PDFInfo
- Publication number
- CN2848657Y CN2848657Y CN 200520103907 CN200520103907U CN2848657Y CN 2848657 Y CN2848657 Y CN 2848657Y CN 200520103907 CN200520103907 CN 200520103907 CN 200520103907 U CN200520103907 U CN 200520103907U CN 2848657 Y CN2848657 Y CN 2848657Y
- Authority
- CN
- China
- Prior art keywords
- emergency
- urgent
- utility
- model
- loam cake
- 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
- Safety Valves (AREA)
Abstract
The utility model relates to an emergency valve. The utility model comprises an upper cover, an emergency valve body, and an emergency piston and an emergency diaphragm which are arranged between the upper cover and the emergency valve body, wherein a groove is arranged on a bulge near the emergency diaphragm in the upper cover, or a through hole is arranged on a circular arc at the upper part of the outside of the bulge of the upper cover and a plurality of convex ribs are arranged on the longitudinal surface of the emergency diaphragm. The utility model ensures that gas enters a so-called negative pressure area when slow charge is started, negative pressure can not be formed and the utility model can effectively eliminate a phenomenon that the emergency valve does not play a role of emergency or emergent pressure drift on a test table. The utility model has the characteristics of simple structure, convenient use, etc.
Description
Technical field
The utility model relates to a kind of vehicle brake control apparatus, specifically a kind of emergency valve.
Background technology
We know, 120 type lorry choker relief valves are China's principal mode lorry air diverter valves, 120 emergency valves all will detect on test cell before dispatching from the factory or getting on the bus, mainly be urgent sensitivity and the roadholding of investigating valve body, it is urgent to require emergency valve to rise before the train pipe decompression 100KPa when the 600KPa level pressure, recently, expansion along with the work of valve body aluminium alloying, the emergency valve valve gap becomes aluminium lid by the cast iron cover piecemeal replacement, institute of an iron section machine institute, factories such as Shenyang successively expose the phenomenon that emergency valve does not play urgent or the pressure drift of getting impatient, and promptly non-persistent again phenomenon appears neither rising in Meishan factory.
Summary of the invention
The utility model provides emergency valve a kind of simple in structure, easy to operate, safe in utilization for overcoming above-mentioned the deficiencies in the prior art.
The purpose of this utility model is to adopt following technical proposals to realize: a kind of emergency valve, it includes loam cake, urgent valve body and is located at loam cake and the promptly emergency piston between the valve body and promptly lamina membranacea, on the inner projection of loam cake, be provided with groove, on the longitudinal surface of urgent lamina membranacea, be provided with the muscle of projection near urgent lamina membranacea place.
Inner protruding outer upper circular arc place near urgent lamina membranacea place has through hole at loam cake.
The utility model is provided with groove or has through hole at the protruding outer upper circular arc of loam cake place owing to adopting on the inner projection near urgent lamina membranacea place of loam cake, the muscle of some projectioies is set on the longitudinal surface of urgent lamina membranacea, can guarantee to allow gas just enter so-called negative pressure region at first like this and can not form negative pressure, can eliminate emergency valve does not play urgent or the pressure drift of getting impatient on test cell phenomenon effectively in trickle charge.The utlity model has characteristics such as simple in structure, easy to use.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a urgent lamina membranacea structural representation of the present utility model.
1. loam cakes among the figure, 2. urgent valve body, 3. emergency piston, 4. projection, 5. urgent lamina membranacea, 6. groove, 7. circular arc place, 8. muscle.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Embodiment 1: structure as shown in Figure 1, its include loam cake 1, urgent valve body 2 and be located at loam cake 1 and urgent valve body 2 between emergency piston 3 and urgent lamina membranacea 5, on loam cake 1 inner projection 4, be provided with groove 6 near urgent lamina membranacea 5 places.
Embodiment 2: structure as shown in Figure 1, its include loam cake 1, urgent valve body 2 and be located at loam cake 1 and urgent valve body 2 between emergency piston 3 and urgent lamina membranacea 5, have through hole at the projection 4 outer upper circular arc places 7 of loam cake 1.
Embodiment 3: structure as depicted in figs. 1 and 2, its include loam cake 1, urgent valve body 2 and be located at loam cake 1 and urgent valve body 2 between emergency piston 3 and urgent lamina membranacea 5, on the longitudinal surface of urgent lamina membranacea 5, be provided with the muscle 8 of some projectioies.
Claims (2)
1. emergency valve, it includes loam cake, urgent valve body and is located at loam cake and the promptly emergency piston between the valve body and promptly lamina membranacea, it is characterized in that: on the inner projection of loam cake, be provided with groove, on the longitudinal surface of urgent lamina membranacea, be provided with the muscle of projection near urgent lamina membranacea place.
2. a kind of emergency valve according to claim 1 is characterized in that: inner protruding outer upper circular arc place near urgent lamina membranacea place has through hole at loam cake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520103907 CN2848657Y (en) | 2005-08-17 | 2005-08-17 | Emergency valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520103907 CN2848657Y (en) | 2005-08-17 | 2005-08-17 | Emergency valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2848657Y true CN2848657Y (en) | 2006-12-20 |
Family
ID=37521136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520103907 Expired - Fee Related CN2848657Y (en) | 2005-08-17 | 2005-08-17 | Emergency valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2848657Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106080649A (en) * | 2016-08-09 | 2016-11-09 | 眉山中车制动科技股份有限公司 | A kind of multifunctional emergency valve |
-
2005
- 2005-08-17 CN CN 200520103907 patent/CN2848657Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106080649A (en) * | 2016-08-09 | 2016-11-09 | 眉山中车制动科技股份有限公司 | A kind of multifunctional emergency valve |
| CN106080649B (en) * | 2016-08-09 | 2018-03-02 | 眉山中车制动科技股份有限公司 | A kind of multifunctional emergency valve |
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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: METALS + CHEMISTRY RESEARCH INSTITUTE;CHINA ACADEM Free format text: FORMER NAME: METALS + CHEMISTRY RESEARCH INSTITUTE;CHINA ACADEMY OF RAILWAY SCIENCES; |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Beijing City, Haidian District Daliushu Road 2, zip code: 100081 Patentee after: Railway Scientific Research Academy Metal And Chemical Research Institute Address before: Beijing City, Haidian District Daliushu Road 2, zip code: 100081 Patentee before: Metal and Chemistry Inst., Railway Science Inst. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061220 Termination date: 20110817 |