CN203131139U - Safety valve - Google Patents
Safety valve Download PDFInfo
- Publication number
- CN203131139U CN203131139U CN 201320013624 CN201320013624U CN203131139U CN 203131139 U CN203131139 U CN 203131139U CN 201320013624 CN201320013624 CN 201320013624 CN 201320013624 U CN201320013624 U CN 201320013624U CN 203131139 U CN203131139 U CN 203131139U
- Authority
- CN
- China
- Prior art keywords
- spring seat
- safety valve
- annular sleeve
- steel ball
- face
- 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
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Abstract
The utility model provides a safety valve, and belongs to the technical field of vehicle hydraulic elements. The safety valve comprises a valve body, a spring seat and a steel ball, wherein the spring seat comprises an annular sleeve, the annular sleeve extends from the end portion of the spring seat to the external of the spring seat, the steel ball is located in the annular sleeve, and when the steel ball is contacted with the valve body in a sealed mode, and a gap is reserved between the end portion of the annular sleeve and the inner end face of the valve body. According to the safety valve, the annular sleeve capable of containing the steel ball is additionally arranged on the end face of the spring seat, a stress area of the spring seat when the safety valve operates is increased, when the safety valve operates, the steel ball starts to open under the action of hydraulic force, oil instantly fills a radial channel of the end face of the annular sleeve and the inner end face of the valve body, impact force of the oil instantly acts on an annular end face of the annular sleeve, thrust force is generated for the spring seat, acting force of the hydraulic force on the spring seat is enlarged, moving of the spring seat is quickened until the hydraulic force is balanced with spring force, and design of the annular sleeve enables a valve port of the safety valve to be rapidly opened to the maximum degree.
Description
Technical field
The utility model belongs to vehicle hydraulic Element Technology field, relates in particular to a kind of safety valve that is applied to the integrated hydraulic element.
Background technique
Safety valve is hydraulic element, belongs to mechanical basic part, is widely used in the hydraulic system, especially uses in the integrated hydraulic valve, can be installed in all kinds of integrated hydraulic elements as safety valve application.This product uses in the automobile hydraulic electric power steering system at present.
Existing safety valve majority is direct-acting type steel ball relief valve, more than the about 2MPa of difference of cracking pressure and complete cracking pressure, has the shortcoming that pressure reduction is big, the opening time is long, and turn-on flow rate can only reach 65% of full flow.
The model utility content
At above-mentioned technical problem, the utility model provide a kind of cracking pressure and complete cracking pressure difference little, open safety valve rapidly.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is, a kind of safety valve, comprise valve body, spring seat and steel ball, described spring seat comprises ring set, described ring set be the spring seat end to the extension of spring seat outside, described steel ball is positioned at ring set, when described steel ball contacts with valve seal, leave the gap between described ring set end and valve body interior edge face.
The utility model safety valve, the ring set that can hold steel ball is set up in employing at the spring seat end face, the lifting surface area of spring seat when having increased the safety valve action, when safety valve moves, steel ball has just begun to open under the effect of hydraulic coupling, fluid moment is full of the radial passage of ring set end face and valve body interior edge face, the impact force momentary action of fluid is to the ring set annular end face, spring seat is produced a thrust, hydraulic coupling is strengthened the active force of spring seat, the acceleration spring seat moves, until hydraulic coupling and spring force balance, the design of ring set makes the safety valve valve port be opened to maximum rapidly, the area of passage maximum, and the flow that passes through is also maximum.
Description of drawings
Accompanying drawing is the utility model safety valve structure schematic representation.
Embodiment
Below in conjunction with accompanying drawing the utility model is made and to be further specified.
As shown in the figure, the utility model safety valve comprises valve body 1, spring seat 2 and steel ball 4, the end of spring seat 2 is processed with to the spring seat 2 outside ring sets 3 that extend, steel ball 4 is positioned at ring set 3 and is seated on the spring seat 2, spring seat 2 adopts with valve body 1 inwall and closely cooperates, on the basis that does not influence spring seat 2 actions, gap minimum between the two, specially designed ring set 3 has increased the lifting surface area of spring seat 2, make spring seat have the function of spool concurrently, when steel ball 4 contacts with valve body 1 sealing, leave the gap between ring set 3 ends and valve body 1 interior edge face, during the safety valve action, steel ball 4 has just begun to open, fluid moment is full of the radial passage of ring set 3 end faces and valve body 1 interior edge face, the impact force momentary action of fluid is to ring set 3 annular end faces, spring seat 2 is produced a thrust, hydraulic coupling is strengthened the active force of spring seat, the acceleration spring seat moves, until hydraulic coupling and spring force balance, the utility model safety valve reaches cracking pressure and complete cracking pressure difference less than 1.5MPa, fully by flow greater than 75% of full flow.
Above embodiment's description is comparatively concrete, detailed; but can not therefore be interpreted as the restriction to this patent scope; should be noted that; for the person of ordinary skill of the art; under the prerequisite that does not break away from the utility model design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (1)
1. safety valve, comprise valve body, spring seat and steel ball, it is characterized in that: described spring seat comprises ring set, described ring set is that the spring seat end is to the extension of spring seat outside, described steel ball is positioned at ring set, when described steel ball contacts with valve seal, leave the gap between described ring set end and valve body interior edge face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320013624 CN203131139U (en) | 2013-01-11 | 2013-01-11 | Safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320013624 CN203131139U (en) | 2013-01-11 | 2013-01-11 | Safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203131139U true CN203131139U (en) | 2013-08-14 |
Family
ID=48939119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320013624 Expired - Fee Related CN203131139U (en) | 2013-01-11 | 2013-01-11 | Safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203131139U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090067A (en) * | 2013-01-11 | 2013-05-08 | 镇江市大兴机械制造有限公司 | Safety valve |
-
2013
- 2013-01-11 CN CN 201320013624 patent/CN203131139U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090067A (en) * | 2013-01-11 | 2013-05-08 | 镇江市大兴机械制造有限公司 | Safety valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130814 Termination date: 20160111 |