CN202768868U - Protection-type soft seal valve core structure - Google Patents
Protection-type soft seal valve core structure Download PDFInfo
- Publication number
- CN202768868U CN202768868U CN 201220430746 CN201220430746U CN202768868U CN 202768868 U CN202768868 U CN 202768868U CN 201220430746 CN201220430746 CN 201220430746 CN 201220430746 U CN201220430746 U CN 201220430746U CN 202768868 U CN202768868 U CN 202768868U
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- CN
- China
- Prior art keywords
- valve
- seat
- valve core
- regulating
- guide holder
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- Expired - Fee Related
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Abstract
The utility model discloses a protection-type soft seal valve core structure which comprises a valve body and a valve cover, wherein the valve body is connected with the valve cover through a bolt and a stud to form a valve chamber. A guide seat is arranged in the valve chamber, one end of the guide seat is connected with a valve rod, and the other end of the guide seat is connected with a regulating valve core and is fixed by means of a pin. An elastic seal ring is arranged between the guide seat and the regulating valve core. A valve seat is arranged in the valve body to support the regulating valve core, the upper portion of the regulating valve core is pressed and fixed by a sleeve, the upper portion of the valve seat is a stair-shaped opening, a connecting face of the valve seat and the guide seat is designed to be a cone-shaped face, the upper portion of a regulating curve of the regulating valve core is designed to be an inclined face, and the head portion of the regulating valve core is provided with a groove. The inclined face on the regulating valve core can prevent the elastic seal ring from being impacted by solid particles; after the elastic seal ring is pressed and deformed, metal seal formed by tight connection of the valve seat and the guide seat and soft seat of the elastic seal ring form a double-proofed state, and close shut-off is guaranteed; and due to the groove in the head portion of the regulating valve core, assembly and disassembly are convenient.
Description
Technical field
The utility model relates to a kind of protective type soft sealing valve cored structure, belongs to the modulating valve technical field.
Background technique
The sealing surface of modulating valve is divided into two kinds of hard sealing and soft seals usually, and hard sealing is common metal sealing.Elastic packing also is in soft seal, and elastic sealing ring is installed on the spool usually, by with cooperatively interacting between the valve seat, seals the sealing that grade generally can reach the bubble level; And the particularity of elastic material, usually only need to the thrust very less than hard sealing just can seal.
At present, the soft seal modulating valve all is at the fixing one deck teflon (or similar plastic materials) of spool.In some occasions, contain some fine particles in the medium, such as dust, welding slag, or medium is exactly powder on the technique, such as polypropylene, polyester etc., the soft seal material does not possess the hardness of metal, and this type of flowing medium causes the life-span impact on the erosion meeting of elastic material to sealing.Therefore, at the soft sealing valve core that this type of operating mode is used, the life-span is very short usually.
The model utility content
The utility model relates to a kind of protective type soft sealing valve cored structure, in order to address the above problem.
For realizing this purpose, the method that the utility model adopts is: a kind of protective type soft sealing valve cored structure, comprise valve body and valve gap, valve body and valve gap are connected to form valve pocket, be provided with guide holder in the described valve pocket, the guide holder upper end connects valve rod, the lower end connects regulating spool, be provided with elastic sealing ring between spool and the guide holder, be provided with valve seat support regulating spool in the valve body, the valve seat top is provided with sleeve valve seat is fixed, and the adjustment curve top of described regulating spool is provided with the inclined-plane, described valve seat upper opening is stepped, and valve seat and guide holder joint are made as the conical surface.
Adopt respectively between described guide holder and valve rod and the regulating spool and be threaded.
The joint of described guide holder and regulating spool is provided with pin and fixes.
The head of described regulating spool is provided with groove.
Its beneficial effect is: the inclined-plane on the regulating spool can prevent that elastic sealing ring is subject to the impact of solid particle; After the deformation of elastic sealing ring pressurized, the metal sealing that valve seat and guide holder closely are connected to form, the soft seal formation dual fail-safe with elastic sealing ring guarantees its tight shutoff; The groove of regulating spool head makes it be easy to assembling and dismounting.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the utility model partial sectional view;
Fig. 2 is guide holder described in the utility model, valve rod and regulating spool linkage structure sectional view.
Embodiment
Disclosed all features in this specification, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
As shown in Figure 1 and Figure 2, a kind of protective type soft sealing valve cored structure, comprise valve body 1 and valve gap 9, valve body 1 and valve gap 9 are connected to form valve pocket by screw rod and bolt, valve pocket inside is provided with guide holder 6, the valve rod 8 that is threaded is adopted in guide holder 6 upper ends, and the regulating spool 2 that is threaded is adopted in the lower end, and be provided with pin 5 in the joint with regulating spool 2 fixing.Be provided with valve seat 3 in the valve body 1 in order to support regulating spool 2, the top of valve seat 3 is provided with sleeve 7 valve seat 3 is pressed abd fixed in the valve body 1.Be provided with the elastic sealing ring 4 for soft seal between regulating spool 2 and the guide holder 6, the adjustment curve top of regulating spool 2 is made as inclined-plane 21, can prevent solid particle bump elastic sealing ring 4, prolongs the working life of elastic sealing ring.The head position of regulating spool 2 is provided with groove 23, the dismounting of conveniently adjusted spool 2 and assembling.The upper opening of valve seat 3 is the stepped shaft opening, is made as the conical surface 22 with guide holder 6 joints above valve seat 3, after elastic sealing ring 4 is squeezed deformation, valve seat 3 closely is connected with guide holder 6, form metal sealing, the soft seal formation double seal with elastic sealing ring 4 guarantees vertebration shutoff.
The utility model is not limited to aforesaid embodiment.The utility model expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (4)
1. protective type soft sealing valve cored structure, comprise valve body (1) and valve gap (9), valve body (1) is connected to form valve pocket with valve gap (9), be provided with guide holder (6) in the described valve pocket, guide holder (6) upper end connects valve rod (8), the lower end connects regulating spool (2), be provided with elastic sealing ring (4) between spool (2) and the guide holder (6), be provided with valve seat (3) support regulating spool (2) in the valve body (1), valve seat (3) top is provided with sleeve (7) valve seat (3) is fixed, it is characterized in that, the adjustment curve top of described regulating spool (2) is provided with inclined-plane (21), described valve seat (3) upper opening is stepped, and valve seat (3) is made as the conical surface (22) with guide holder (6) joint.
2. protective type soft sealing valve cored structure according to claim 1 is characterized in that, adopts respectively between described guide holder (6) and valve rod (8) and the regulating spool (2) to be threaded.
3. protective type soft sealing valve cored structure according to claim 1 is characterized in that, it is fixing that the joint of described guide holder (6) and regulating spool (2) is provided with pin (5).
4. protective type soft sealing valve cored structure according to claim 1 is characterized in that, the head of described regulating spool (2) is provided with groove (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220430746 CN202768868U (en) | 2012-08-29 | 2012-08-29 | Protection-type soft seal valve core structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220430746 CN202768868U (en) | 2012-08-29 | 2012-08-29 | Protection-type soft seal valve core structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202768868U true CN202768868U (en) | 2013-03-06 |
Family
ID=47775443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220430746 Expired - Fee Related CN202768868U (en) | 2012-08-29 | 2012-08-29 | Protection-type soft seal valve core structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202768868U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807449A (en) * | 2014-03-03 | 2014-05-21 | 德阳正光机电设备有限公司 | Throttle valve for oil gas |
| CN104315171A (en) * | 2014-11-18 | 2015-01-28 | 自贡自高阀门有限公司 | Improved valve seat for throttling stop emptying valve |
| CN104819304A (en) * | 2015-05-08 | 2015-08-05 | 余姚市普润净水设备有限公司 | Valve |
| CN109210245A (en) * | 2017-07-01 | 2019-01-15 | 乔森 | A kind of unidirectional stop valve |
-
2012
- 2012-08-29 CN CN 201220430746 patent/CN202768868U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807449A (en) * | 2014-03-03 | 2014-05-21 | 德阳正光机电设备有限公司 | Throttle valve for oil gas |
| CN104315171A (en) * | 2014-11-18 | 2015-01-28 | 自贡自高阀门有限公司 | Improved valve seat for throttling stop emptying valve |
| CN104819304A (en) * | 2015-05-08 | 2015-08-05 | 余姚市普润净水设备有限公司 | Valve |
| CN109210245A (en) * | 2017-07-01 | 2019-01-15 | 乔森 | A kind of unidirectional stop valve |
| CN109210245B (en) * | 2017-07-01 | 2024-04-05 | 乔森 | One-way stop 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: 20130306 Termination date: 20190829 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |