CN2690643Y - Progressive pressure regulating conjointed sleeve safety valve - Google Patents
Progressive pressure regulating conjointed sleeve safety valve Download PDFInfo
- Publication number
- CN2690643Y CN2690643Y CN 200420037940 CN200420037940U CN2690643Y CN 2690643 Y CN2690643 Y CN 2690643Y CN 200420037940 CN200420037940 CN 200420037940 CN 200420037940 U CN200420037940 U CN 200420037940U CN 2690643 Y CN2690643 Y CN 2690643Y
- Authority
- CN
- China
- Prior art keywords
- sleeve
- circle
- pressure regulation
- plug
- disjunctor sleeve
- 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 relates to a safety device for a multi-way direction valve of a hydraulic system, in particular to a progressive pressure regulating conjoint sleeve safety valve, comprising a pressure regulating plug, a center, a middle stopper, a sliding valve, etc. A front and a back sleeve are designed as one conjoint sleeve the peripheral wall of which is drilled with a circle of inclined holes and a circle of step holes in sequence. The diameter ratio of each group of the step holes which are in one circle of the peripheral wall of the conjoint sleeve is that one big hole is equal to two middle holes which are equal to four small holes. The start end of the conjoint sleeve is connected with the pressure regulating plug, and the terminal end of the conjoint sleeve is provided with a screw plug. The utility model not only regulates the working pressure of the multi-way direction valve of a hydraulic system accurately and stably, but also works without the shaking of the sleeve. The utility model has the advantages of long service life, stable working pressure, etc.
Description
One. technical field
The utility model relates to the safety installations on a kind of hydraulic system multiple directional control valve, especially a kind of gradual pressure regulation disjunctor sleeve safety valve.
Two. background technique
Need guarantee stable working pressure during the work of hydraulic system multiple directional control valve, safety valve can be set up in the hyperbaric chamber of selector valve in the working pressure a whole set of hydraulic system repairing, known safety valve is mainly by the pressure regulation plug, front and back two joint sleeves, top, middle plug, guiding valves etc. are formed, it is to be drilled with the larger-diameter two-stage of two circles to unload oilhole in the front and back of back sleeve, the general safety valve of AQF-300113 type of putting on market as Longyan, Fujian Jitian's hydraulic pressure Co., Ltd, though this safety valve can be to a whole set of hydraulic system repairing when setting up working pressure, but following some deficiency of its existence in using: the one, because it is front and back two joint sleeves, so sleeve can rock during work, working life is short; The 2nd, because sleeve is two circle larger-diameter two-stages isometrical oilholes that unload thereafter, fast pressure relief is so pressure lifting is stable inadequately during work.
Three. summary of the invention
Task of the present utility model provides a kind of improved hydraulic system multiple directional control valve safety installations, and it can increase the service life, and can make working pressure more stable again.
For finishing this task, the utility model carries out in the following way:
Still use pressure regulation plug, top, middle plug, guiding valve to form, but front and back two joint sleeve design are become a joint disjunctor sleeve, be drilled with a circle inclined hole and a circle shoulder hole successively at the perisporium of disjunctor sleeve.
The inclined hole of disjunctor sleeve perisporium one circle is made as 4 to 6, and the inclination alpha of inclined hole is 10 to 30 °.
The shoulder hole of disjunctor sleeve perisporium one circle is made as 4 to 6 groups, and every group is large, medium and small 3 holes.
It is that 1 macropore equals 2 mesopores and equals 4 apertures that the shoulder hole of disjunctor sleeve perisporium one circle is made as every group diameter ratio.
The top of disjunctor sleeve connects the pressure regulation plug, and end is provided with a screw plug.
The utility model is because only need with two joint sleeves before and after the joint disjunctor sleeve replacement, so good integrity can increase the service life effectively; Owing to the perisporium at the disjunctor sleeve is drilled with a circle inclined hole and a circle shoulder hole successively, release gradually from small to large is so the working pressure lifting more becomes accurately and stablizes simultaneously.
Four. description of drawings
The concrete structure of model utility is provided by following examples and accompanying drawing thereof.
Fig. 1 is the disjunctor sleeve complete section plan view according to the gradual pressure regulation disjunctor sleeve safety valve that the utility model proposes.
Fig. 2 is the shoulder hole enlarged diagram of Fig. 1 disjunctor sleeve.
Fig. 3 is according to the gradual pressure regulation disjunctor sleeve safety valve assembling complete section plan view that the utility model proposes.
Each sign expression in the accompanying drawing:
1. fill in 7. guiding valves, 8. screw plugs, 9. multiple directional control valves, 10. selector valve oil inlet holes, 11. selector valve oil outlets in the middle of the disjunctor sleeve 2. inclined holes 3. shoulder holes 4. pressure regulation plugs 5. top 6.
Referring to Fig. 1, disjunctor sleeve 1 perisporium of gradual pressure regulation disjunctor sleeve safety valve is drilled with a circle inclined hole 2 and a circle shoulder hole 3 successively, and the inclination angle of inclined hole 2 is α.Referring to Fig. 2, shoulder hole 3 oblique drops are arranged, and every group has large, medium and small three holes, and its diameter ratio is that a macropore equals two mesopores, and a mesopore equals two apertures.Referring to Fig. 3, gradual pressure regulation disjunctor sleeve safety valve is made of pressure regulation plug 4, top 5, disjunctor sleeve 1, middle plug 6, guiding valve 7 and screw plug 8; Pressure regulation plug 4 is meant the composition of pressure regulating screw, fore-set, pressure adjusting spring, nut, tooth seat etc.Gradual pressure regulation disjunctor sleeve safety valve is installed on the multiple directional control valve 9, and multiple directional control valve 9 has a selector valve oil inlet hole 10 and a selector valve oil outlet 11.During hydraulic work system, along with hydraulic pressure rises, 9 oil inlet hole 10 enters disjunctor sleeve 1 through screw plug 8 to hydraulic oil along the direction of arrow from multiple directional control valve, plug 6 in the middle of earlier guiding valve 7 being pushed to gradually, make aperture, mesopore, the macropore of shoulder hole 3 open-minded gradually successively, part hydraulic oil flow is to selector valve oil outlet 11, when hydraulic pressure rise to be enough to push open block in the middle of the plug 6 top 5 after, part hydraulic oil through the tooth seat orifice flow of pressure regulation plug 4 to selector valve oil outlet 11, thereby realize regulating accurately, reposefully hydraulic system working pressure.
Five. embodiment
When industry is made, drill through a circle inclined hole 2 and a circle shoulder hole 3 successively at the perisporium of disjunctor sleeve 1.What the size with its diameter of the number of inclined hole 2 and shoulder hole is inversely proportional to, inclined hole 2 should be 4 to 6, the inclination alpha of inclined hole 2 is 10 to 30 °, shoulder hole 3 should be 4 to 6 groups, every group is large, medium and small 3 holes, the diameter ratio that shoulder hole is 3 every groups is that 1 macropore equals 2 mesopores and equals 4 apertures, and the top of disjunctor sleeve connects the pressure regulation plug, terminally connects a screw plug.Gradual pressure regulation disjunctor sleeve safety valve is packed into behind the multiple directional control valve 9, the collar extension that should make the perisporium inclined hole 2 of disjunctor sleeve 1 and shoulder hole 3 is towards selector valve oil outlet 11, the internal orifice of perisporium inclined hole 2 is towards pressure regulation plug 4 and the middle oil circuit that unloads of filling in 6, and the internal orifice of shoulder hole 3 is towards guiding valve 7.Mesopore was opened half when the staggered positions that the large, medium and small hole of every group of shoulder hole 3 is in the perisporium of disjunctor sleeve 1 was slided the aperture standard-sized sheet that makes shoulder hole 3 with guiding valve 7, and macropore is opened half for good during the mesopore standard-sized sheet.
Claims (5)
1. gradual pressure regulation disjunctor sleeve safety valve, it comprises pressure regulation plug (4), top (5), middle plug (6), guiding valve (7) composition, it is characterized in that being provided with a disjunctor sleeve (1), disjunctor sleeve (1) perisporium is drilled with a circle inclined hole (2) and a circle shoulder hole (3) successively.
2. gradual pressure regulation disjunctor sleeve safety valve according to claim 1 is characterized in that the inclined hole (2) of described disjunctor sleeve (1) perisporium one circle is 4 to 6, and the inclination alpha of inclined hole (2) is 10 to 30 °.
3. gradual pressure regulation disjunctor sleeve safety valve according to claim 1 is characterized in that the shoulder hole (3) of described disjunctor sleeve (1) perisporium one circle is 4 to 6 groups, and every group is large, medium and small 3 holes.
4. according to claim 1 or 3 described gradual pressure regulation disjunctor sleeve safety valves, the diameter of every group of shoulder hole (3) that it is characterized in that described disjunctor sleeve (1) perisporium one circle is than being D
Greatly=2D
In=4D
Little
5. according to claim 1 or 2 or 3 described gradual pressure regulation disjunctor sleeve safety valves, it is characterized in that the top of described disjunctor sleeve (1) connects pressure regulation plug (4), end is provided with a screw plug (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420037940 CN2690643Y (en) | 2004-01-06 | 2004-01-06 | Progressive pressure regulating conjointed sleeve safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420037940 CN2690643Y (en) | 2004-01-06 | 2004-01-06 | Progressive pressure regulating conjointed sleeve safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2690643Y true CN2690643Y (en) | 2005-04-06 |
Family
ID=34671025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420037940 Expired - Fee Related CN2690643Y (en) | 2004-01-06 | 2004-01-06 | Progressive pressure regulating conjointed sleeve safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2690643Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882796A (en) * | 2017-11-06 | 2018-04-06 | 无锡鹰贝精密轴承有限公司 | Control valve |
-
2004
- 2004-01-06 CN CN 200420037940 patent/CN2690643Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882796A (en) * | 2017-11-06 | 2018-04-06 | 无锡鹰贝精密轴承有限公司 | Control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050406 |