CN202176813U - Self-operated pressure-regulating valve with dustproof function - Google Patents
Self-operated pressure-regulating valve with dustproof function Download PDFInfo
- Publication number
- CN202176813U CN202176813U CN2011202700823U CN201120270082U CN202176813U CN 202176813 U CN202176813 U CN 202176813U CN 2011202700823 U CN2011202700823 U CN 2011202700823U CN 201120270082 U CN201120270082 U CN 201120270082U CN 202176813 U CN202176813 U CN 202176813U
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- China
- Prior art keywords
- valve
- rod
- valve rod
- filling material
- self
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- 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 present utility model relates to a self-operated pressure-regulating valve with a dustproof function, and the valve belongs to the regulating valve technology field. The pressure-regulating valve comprises a valve body, an execution mechanism, a valve core and a valve rod, the lower end of the valve core is fitted with a valve base arranged inside the valve body, a bellows is sleeved on the upper end of the valve core, a valve cover is sleeved on the upper end of the valve core and the lower end of the valve rod, an adjusting disk is threadingly connected with the valve cover, the adjusting disk is elastically connected with a spring pedestal arranged on the valve rod, the upper end of the valve rod is connected with a pushing rod, the pushing rod is connected with the execution mechanism, filling material is filled between the upper end of the valve cover and the valve rod, a filling material press cover is arranged on the upper part of the filling material, and a dustproof sealing ring is arranged between the filling material press cover and the valve rod. The pressure regulating valve is compact in structure and reasonable in design, the filling material is filled between the upper end of the valve cover and the valve rod, the filling material press cover is arranged on the upper part of the filling material, the dustproof sealing ring is arranged between the filling material press cover and the valve rod, and by arranging the dustproof sealing ring, dusts can be effectively prevented from entering the valve during the process of opening or closing the valve, and the using performance will not be influenced.
Description
Technical field
The utility model belongs to the modulating valve technical field, is specifically related to a kind of self-contained pressure regulator that has dust reduction capability.
Background technique
In recent years, the develop rapidly of domestic valve industry, the product structure type of each valve producer emerges in an endless stream.But domestic existing self-contained pressure regulator is in actual conditions uses, and the upper valve rod place accumulates dust or dust easily, if do not safeguard for a long time; Then in valve opening or pass closed procedure, bring dust into the filler place easily; Increase the frictional force of valve rod, influence the degree of regulation of valve, stuck phenomenon can take place in valve rod when serious; Damage valve, influence the usability of valve.
The model utility content
To the problem that existing technology exists, the purpose of the utility model is to design a kind of technological scheme that has the self-contained pressure regulator of dust reduction capability is provided.
Described a kind of self-contained pressure regulator that has dust reduction capability comprises valve body and actuator, connects between valve body and the actuator spool and the valve rod that is fixed together is set; Described spool lower end can be equipped with the valve seat that is fixedly installed in the valve body; Spool upper end socket is provided with bellows, and socket is provided with valve gap outside the lower end of described spool upper end and valve rod, and adjustment disk is threaded on the valve gap; The connection of adjustment disk elasticity is arranged on the spring seat on the valve rod; The upper end of valve rod connects push rod, and push rod is connected with actuator, it is characterized in that being filled with filler between described valve gap upper end and the valve rod; Filler top is provided with Gland, and the dust sealing ring is set between Gland and the valve rod.
Described a kind of self-contained pressure regulator that has dust reduction capability is characterized in that described Gland socket is arranged on the valve rod, and the dust sealing ring is set between Gland top and the valve rod, and the dust sealing ring set connects and is arranged on the valve rod.
Described a kind of self-contained pressure regulator that has dust reduction capability is characterized in that fixedly installing between described valve body and the actuator one group of column.
Described a kind of self-contained pressure regulator that has dust reduction capability is characterized in that described spring seat is connected with adjustment disk elasticity through the spring that is provided with.
Above-mentioned a kind of self-contained pressure regulator that has dust reduction capability, compact structure, reasonable in design; In existing modulating valve, be filled with filler between valve gap upper end and the valve rod; Filler top is provided with Gland, and the dust sealing ring is set between Gland and the valve rod, and being provided with of dust sealing ring prevents that effectively dust and dust are in valve opening or pass closed procedure; Be brought in the valve, influence the usability of valve.
Description of drawings
Fig. 1 is the sectional view of the utility model;
Fig. 2 is the partial enlarged drawing on the valve gap top of the utility model.
Among the figure: the 1-valve body; The 2-valve seat; The 3-spool; The 4-bellows; The 5-valve gap; The 6-adjustment disk; The 7-filler; The 8-spring; The 9-Gland; 10-dust sealing ring; 11-actuator; The 12-push rod; The 13-spring seat; The 14-valve rod; The 15-column.
Embodiment
Further specify the utility model below in conjunction with Figure of description.
As shown in the figure, a kind of self-contained pressure regulator that has dust reduction capability comprises valve body 1 and actuator 11, and valve body 1 was fixed with actuator 11 outside connections through the one group of column 15 that is provided with.And be connected with valve rod 14 through the spool 3 that is fixed together with actuator 11 inside at valve body 1.Spool 3 lower ends can be equipped with the valve seat 2 that is fixedly installed in the valve body 1, come the flow of control media through the folding size between regulating spool 3 and the valve seat 2.Spool 3 upper end sockets are provided with the bellows 4 as balancing component.Socket is provided with valve gap 5 outside the lower end of spool 3 upper ends and valve rod 14, the adjustment disk 6 that is threaded on the valve gap 5, and adjustment disk 6 is arranged on the spring seat 13 on the valve rod 14 through the connection of spring 8 elasticity.Be filled with filler 7 between valve gap 5 upper ends and the valve rod 14; Filler 7 is a customary fillers in the modulating valve; Filler 7 tops are provided with Gland 9, between Gland 9 tops and the valve rod 14 dust sealing ring 10 are set, and Gland 9 is socketed on the valve rod 14 with dust sealing ring 10.The upper end of valve rod 14 connects push rod 12, and push rod 12 is connected with actuator 11.Actuator 11 is an actuator commonly used in the valve, and its inside is provided with working masks.
During work; When medium by the flow through feeding-passage of valve body 1 of the direction of arrow; The position of spool 3 is that the free area between spool 3 and the valve seat 2 has determined rate-of flow; Controlled downstream pressure P2 (downstream pressure P2 is from the tapping channel of valve body 1) is sent on the working masks of actuator 11 through PRESSURE PIPE, and converts detent force at this.
According to spring 8 pretightening forces size, detent force adjustment spool 3 positions.Adjust the size of spring 8 pretightening forces through adjustment disk 6.Be provided with the bellows 4 as balancing component outside the spool 3, downstream pressure P2 acts on bellows 4 internal surfaces, and upstream pressure P1 acts on the outer surface of bellows 4, like this, acts on P1 and the mutual balance of P2 pressure on the spool 3.
When downstream pressure during greater than adjusted set point, pressure spring 8 drives spool 3, and valve is closed according to pressure variety in proportion.When downstream pressure drops to the end in set point, then, valve opening degree is scaled up according to the pressure amount, thereby reach decompression, voltage stabilizing purpose because the reaction force that spring 8 is produced drives spool 3.
Increase by a dust sealing ring 10 on the Gland 9, prevent that effectively dust and dust in valve opening or pass closed procedure, are brought into filler 7 places; Increase the frictional force of valve rod 14, influence the degree of regulation of valve, stuck phenomenon can take place in valve rod when serious; Damage valve, influence the usability of valve.
Shown in the above and the figure only is the preferred implementation of the utility model.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model principle, can also make some modification and improvement, these also should be regarded as belonging to the protection domain of the utility model.
Claims (4)
1. self-contained pressure regulator that has dust reduction capability; Comprise valve body (1) and actuator (11); Connect spool (3) and the valve rod (14) that setting is fixed together between valve body (1) and the actuator (11), described spool (3) lower end can be equipped with the valve seat (2) that is fixedly installed in the valve body (1), and spool (3) upper end socket is provided with bellows (4); Socket is provided with valve gap (5) outside the lower end of described spool (3) upper end and valve rod (14); The adjustment disk (6) that is threaded on the valve gap (5), adjustment disk (6) elasticity connect and are arranged on the spring seat (13) on the valve rod (14), and the upper end of valve rod (14) connects push rod (12); Push rod (12) is connected with actuator (11); It is characterized in that being filled with filler (7) between described valve gap (5) upper end and the valve rod (14), filler (7) top is provided with Gland (9), between Gland (9) and the valve rod (14) dust sealing ring (10) is set.
2. a kind of self-contained pressure regulator that has dust reduction capability as claimed in claim 1; It is characterized in that described Gland (9) socket is arranged on the valve rod (14); Between Gland (9) top and the valve rod (14) dust sealing ring (10) is set, dust sealing ring (10) socket is arranged on the valve rod (14).
3. a kind of self-contained pressure regulator that has dust reduction capability as claimed in claim 1 is characterized in that fixedly installing one group of column (15) between described valve body (1) and the actuator (11).
4. a kind of self-contained pressure regulator that has dust reduction capability as claimed in claim 1 is characterized in that described spring seat (13) is connected with adjustment disk (6) elasticity through the spring (8) that is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202700823U CN202176813U (en) | 2011-07-28 | 2011-07-28 | Self-operated pressure-regulating valve with dustproof function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202700823U CN202176813U (en) | 2011-07-28 | 2011-07-28 | Self-operated pressure-regulating valve with dustproof function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202176813U true CN202176813U (en) | 2012-03-28 |
Family
ID=45866691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202700823U Expired - Fee Related CN202176813U (en) | 2011-07-28 | 2011-07-28 | Self-operated pressure-regulating valve with dustproof function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202176813U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736807A (en) * | 2016-03-16 | 2016-07-06 | 杭州艾诺流体控制仪表有限公司 | Output-force-adjustable pneumatic diaphragm regulating valve |
| CN109026874A (en) * | 2018-08-27 | 2018-12-18 | 上海中船三井造船柴油机有限公司 | A kind of pressure-difference valve for the independent hydraulically controlled oil system of low-speed diesel engine |
-
2011
- 2011-07-28 CN CN2011202700823U patent/CN202176813U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736807A (en) * | 2016-03-16 | 2016-07-06 | 杭州艾诺流体控制仪表有限公司 | Output-force-adjustable pneumatic diaphragm regulating valve |
| CN105736807B (en) * | 2016-03-16 | 2018-05-22 | 杭州艾诺流体控制仪表有限公司 | Power output is adjustable pneumatic diaphragm control valve |
| CN109026874A (en) * | 2018-08-27 | 2018-12-18 | 上海中船三井造船柴油机有限公司 | A kind of pressure-difference valve for the independent hydraulically controlled oil system of low-speed diesel engine |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120328 Termination date: 20160728 |