CN202302120U - Small-aperture pressure valve - Google Patents
Small-aperture pressure valve Download PDFInfo
- Publication number
- CN202302120U CN202302120U CN2011203579751U CN201120357975U CN202302120U CN 202302120 U CN202302120 U CN 202302120U CN 2011203579751 U CN2011203579751 U CN 2011203579751U CN 201120357975 U CN201120357975 U CN 201120357975U CN 202302120 U CN202302120 U CN 202302120U
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- China
- Prior art keywords
- valve
- spool
- small
- port
- valve port
- 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
- 230000008676 import Effects 0.000 claims description 11
- 230000000295 complement effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of pressure valves, in particular to a small-aperture pressure valve, which comprises a valve body. An inlet, a valve port, an outlet and a valve cavity are formed in the valve body. The inlet is communicated with the valve cavity through the valve port. The outlet is communicated with the valve cavity. The valve port is obconical. A valve element is arranged opposite to the valve port in the valve cavity. The shape and size of the valve element are matched with those of the valve port. A driving structure is arranged above the valve element. According to the small-aperture pressure valve, the valve port is obconical, the valve element is arranged opposite to the valve port, the shape and size of the valve element are matched with those of the valve port, and the valve element can be closely matched with the valve port, so that sealing performance is greatly improved.
Description
Technical field
The utility model relates to the pressure valve technical field, particularly a kind of small-bore pressure valve.
Background technique
Along with the constantly development of industry ground, pressure valve has been widely used in every field, is used for the startup of pressure minimum on the screw air compressor, and small-bore pressure valve is wherein common a kind of pressure valve.Existing small-bore pressure valve is generally by valve body; Form import in the said valve body, valve port, outlet and spool; Said spool contacts setting with the valve port corresponding flat; There is poor sealing performance between spool and valve port in it, has the defective and the deficiency of leakage phenomenon, so be necessary existing small-bore pressure valve is carried out necessary innovation.
The model utility content
The purpose of the utility model is defective and the deficiency to existing technology, and a kind of small-bore pressure valve of simple and compact for structure, good seal performance is provided.
For realizing above-mentioned purpose, the utility model adopts following technological scheme:
The described a kind of small-bore pressure valve of the utility model, it comprises valve body, forms import in the said valve body, valve port, outlet and valve pocket, said import is communicated with valve pocket through valve port, and outlet is communicated with valve pocket; Said valve port is the inverted cone shape setting, is provided with spool in the said valve pocket, the corresponding setting of said spool with valve port, and the shape size of the shape of spool size and valve port is complementary, and said spool top is provided with driving structure.
Further, said spool periphery is provided with seal ring.
Wherein, said driving structure comprises the adjusting nut that can be located at the piston in the valve pocket up or down and be threadedly connected to the valve pocket top, is provided with pressure spring between said adjusting nut and the piston, is provided with Returnning spring between said piston and the spool.
Further, said valve body top sidewall is provided with set screw, the corresponding setting with adjusting nut of said set screw.
Further, said valve pocket internal upper part place is provided with circlip for hole.
After adopting said structure; The utility model beneficial effect is: the said valve port of the utility model is the inverted cone shape setting, the corresponding setting of said spool with valve port, and the shape size of the shape of spool size and valve port is complementary; Can realize between spool and the valve port closely cooperating, sealability improves greatly.
Description of drawings
Fig. 1 is the whole sectional structure schematic representation of the utility model.
Among the figure:
1, valve body; 2, spool; 3, seal ring; 4, Returnning spring;
5, piston; 6, O RunddichtringO; 7, circlip for hole; 8, pressure spring;
9, adjusting nut; 10, set screw; 11, valve pocket; 12, valve port;
13, import; 14, outlet.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, the described a kind of small-bore pressure valve of the utility model, it comprises valve body 1, forms import 13 in the said valve body 1, valve port 12, outlet 14 and valve pocket 11, said import 13 is communicated with valve pocket 11 through valve port 12, exports 14 and is communicated with valve pocket 11.
Said valve port 12 is the inverted cone shape setting; Be provided with spool 2 in the said valve pocket 11, said spool 2 and valve port 12 corresponding settings, and the shape size of the shape of spool 2 size and valve port 12 is complementary; Said spool 2 peripheries are provided with seal ring 3, with the sealability between further increase spool 2 and the valve port 12.
Said spool 2 tops are provided with driving structure.Said driving structure comprises the piston 5 that can be located at up or down in the valve pocket 11 and the adjusting nut 9 that is threadedly connected to valve pocket 11 tops; Wherein piston 5 peripheries are provided with O RunddichtringO 6, to increase the sealing of the utility model; Said valve body 1 top sidewall is provided with set screw 10, said set screw 10 and adjusting nut 9 corresponding settings, and the effect of set screw 10 is used for adjusting nut 9 is positioned.
Be provided with pressure spring 8 between said adjusting nut 9 and the piston 5, said piston 5 is located at Returnning spring 4 with spool 2.
Said valve pocket 11 internal upper part places are provided with circlip for hole 7, and in particular, it is located at piston 5 above positions, is used for the stroke limit to piston 5.
Working principle: the utility model original state, regulate adjusting nut 9 downwards, pressure spring 8 compressions; Promote piston 5 and withstand spool 2, after fluid gets into from import 13, form pressure difference between import 13 and the valve pocket 11; Fluid produces pressure to spool 2; Upwards compression of pressure spring 8, spool 2 is opened, and the utility model is in opening state.The utility model can be adjusted the elastic system of pressure spring 8 according to hydrodynamic pressure; Concrete is exactly to regulate pressure spring 8 elasticities through regulating adjusting nut 9; After regulating; Position through 10 pairs of adjusting nuts 9 of set screw, in order to avoid in use adjusting nut 9 positions change and influence the use of the utility model.After fluid stopped to get into import 13, spool 2 resetted under the effect of Returnning spring 4, and with valve port 12 closures, the utility model is in closed condition again again.
The above only is the preferred embodiments of the utility model, so all equivalences of doing according to the described structure of the utility model patent claim, characteristic and principle change or modify, includes in the utility model patent claim.
Claims (5)
1. small-bore pressure valve, it comprises valve body (1), forms import (13) in the said valve body (1), valve port (12), outlet (14) and valve pocket (11), said import (13) is communicated with valve pocket (11) through valve port (12), exports (14) and is communicated with valve pocket (11); It is characterized in that: said valve port (12) is the inverted cone shape setting; Be provided with spool (2) in the said valve pocket (11); Said spool (2) and the corresponding setting of valve port (12), and the shape size of the shape of spool (2) size and valve port (12) is complementary, and said spool (2) top is provided with driving structure.
2. small-bore pressure valve according to claim 1 is characterized in that: said spool (2) periphery is provided with seal ring (3).
3. small-bore pressure valve according to claim 1 and 2; It is characterized in that: said driving structure comprises the adjusting nut (9) that can be located at the piston (5) in the valve pocket (11) up or down and be threadedly connected to valve pocket (11) top; Be provided with pressure spring (8) between said adjusting nut (9) and the piston (5), be provided with Returnning spring (4) between said piston (5) and the spool (2).
4. small-bore pressure valve according to claim 3 is characterized in that: said valve body (1) top sidewall is provided with set screw (10), said set screw (10) and the corresponding setting of adjusting nut (9).
5. small-bore pressure valve according to claim 4 is characterized in that: said valve pocket (11) internal upper part place is provided with circlip for hole (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203579751U CN202302120U (en) | 2011-09-20 | 2011-09-20 | Small-aperture pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203579751U CN202302120U (en) | 2011-09-20 | 2011-09-20 | Small-aperture pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202302120U true CN202302120U (en) | 2012-07-04 |
Family
ID=46371016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203579751U Expired - Fee Related CN202302120U (en) | 2011-09-20 | 2011-09-20 | Small-aperture pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202302120U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869818A (en) * | 2018-09-12 | 2018-11-23 | 苏州丹顿机电有限公司 | A kind of adjustable check valve of cracking pressure |
| CN109779885A (en) * | 2019-03-14 | 2019-05-21 | 广州广涡精密科技有限公司 | A kind of air compressor minimum pressure valve |
-
2011
- 2011-09-20 CN CN2011203579751U patent/CN202302120U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869818A (en) * | 2018-09-12 | 2018-11-23 | 苏州丹顿机电有限公司 | A kind of adjustable check valve of cracking pressure |
| CN109779885A (en) * | 2019-03-14 | 2019-05-21 | 广州广涡精密科技有限公司 | A kind of air compressor minimum pressure valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FENGHUA EAGURT MACHINERY MANUFACTURE CO., LTD. Free format text: FORMER OWNER: HE DONG Effective date: 20131022 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131022 Address after: 315502 Zhejiang province Fenghua Xikou Zhen Gong Tong Industrial Park Patentee after: FENGHUA EAGURT MACHINERY MANUFACTURE CO., LTD. Address before: 315502 Zhejiang province Fenghua Xikou Zhen Gong Tang Industrial Park yigete Machinery Manufacturing Co., Ltd. Patentee before: He Dong |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20150920 |
|
| EXPY | Termination of patent right or utility model |