CN201731168U - Linear motion control valve with self-sealing structure - Google Patents
Linear motion control valve with self-sealing structure Download PDFInfo
- Publication number
- CN201731168U CN201731168U CN2010202826545U CN201020282654U CN201731168U CN 201731168 U CN201731168 U CN 201731168U CN 2010202826545 U CN2010202826545 U CN 2010202826545U CN 201020282654 U CN201020282654 U CN 201020282654U CN 201731168 U CN201731168 U CN 201731168U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- stuffing box
- sealing structure
- 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
Links
Images
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model discloses a linear motion control valve with a self-sealing structure, which comprises a valve body, a valve cap and a valve rod; the valve body is fixed with the valve cap through a bolt; a stuffing box is arranged in the valve cap; the valve rod penetrates the stuffing box and moves up and down; a sealing component is arranged between the valve rod and the stuffing box; since the sealing component arranged between the valve rod and the stuffing box comprises a sealing ring and a V-shaped packing material, the sealing structure has good self-sealing effect, the friction force between the valve rod and the stuffing box is small, and meanwhile, the adjustment sensitivity of the valve rod is enhanced; in addition, the consumption of the V-shaped packing material is reduced, and the production cost is saved; and meanwhile, an oil seal spring is arranged in an annular groove formed on the end surface of the sealing ring propped against the sharp corner surface of the V-shaped packing material, the expansion and contraction of the sealing ring has flexibility, and the sealing performance between the valve rod and the stuffing box is further ensured.
Description
Technical field
The utility model relates to a kind of modulating valve, especially a kind of straight journey modulating valve with self sealing structure.
Background technique
Straight journey modulating valve in the market, sealing between valve rod and the stuffing box directly is superimposed by many V-type fillers and realizes sealing, such sealing configuration, sealing effect is poor, and be provided with many V-type fillers between valve rod and the stuffing box, can increase the frictional force between valve rod and the stuffing box, the adjusting sensitivity of valve rod is reduced, such structure is provided with the V-type filler One's name is legion that needs simultaneously, has increased cost of production.
Summary of the invention
At the deficiencies in the prior art, the utility model provides a kind of selfsealings good, and frictional force is little between valve rod and the stuffing box, and valve rod is regulated highly sensitive straight journey modulating valve.
For achieving the above object, the utility model provides a kind of straight journey modulating valve with self sealing structure, comprise valve body, valve gap, valve rod, valve body and valve gap pass through bolt, be provided with stuffing box in the valve gap, valve rod is located in the stuffing box, and it is up and down, be provided with black box between described valve rod and the stuffing box, it is characterized in that: black box is made up of seal ring and V-type filler, and the wedge angle face of V-type filler and seal ring end face offset, black box is subjected to external force to do the time spent, the wedge angle face of V-type filler will crush seal circle end face the middle part, the seal ring end face is expanded to both sides, realize sealing; And can realize selfsealings by the valve body internal pressure.
The beneficial effects of the utility model are: because the black box between valve rod and the stuffing box is made up of seal ring and V-type filler, such sealing configuration selfsealings are effective, and frictional force is little between valve rod and the stuffing box, improved the adjusting sensitivity of valve rod simultaneously, also reduce a large amount of uses of V-type filler in addition, saved cost of production.
The utility model can further be set to be provided with between described valve rod and the stuffing box upper and lower two groups of black boies, is provided with the filler spacer between upper and lower two groups of black boies.
The utility model also can further be set to also be provided with packing ring and Gland between described valve rod and the stuffing box, and from lower to upper erection sequence is followed successively by during assembling: packing ring, V-type filler, seal ring, filler spacer, V-type filler, seal ring, Gland.
The utility model also can further be set to also include in the black box oil seal spring, and the end face that the wedge angle face of seal ring and V-type filler compresses is provided with annular groove, is provided with oil seal spring in the groove.
The utility model also can further be set to be provided with between Gland and the valve rod V-type rubber ring.
Description of drawings
Fig. 1 is a sectional view of the present utility model.
Fig. 2 is the I portion enlarged view of Fig. 1.
Fig. 3 is the structural drawing of V-type filler in the utility model.
Fig. 4 is a partial exploded view of the present utility model.
Embodiment
A kind of straight journey modulating valve with self sealing structure as shown in Figure 1, 2, 3 comprises valve body 1, valve gap 2, valve rod 3, and valve body 1 passes through bolt with valve gap 2, is provided with stuffing box 4 in the valve gap 2, and valve rod 3 is located in the stuffing box 4, and up and down.Between described valve rod 3 and the stuffing box 4 by when assembling erection sequence from lower to upper be provided with packing ring 5 successively, V-type filler 6, seal ring 7, filler spacer 8, V-type filler 6, seal ring 7, Gland 9.The wedge angle face 601 and seal ring 7 end faces 701 of V-type filler 6 offset, the end face 701 that the wedge angle face 601 of seal ring 7 and V-type filler 6 compresses is provided with annular groove 7011, be provided with oil seal spring 10 in the groove 7011, be provided with V-type rubber ring 901 between Gland 9 and the valve rod 3.
When valve rod 3 is up and down, the wedge angle face 601 of V-type filler 6 will crush seal circle 7 end faces 701, seal ring 7 end faces 701 are expanded to both sides, realize sealing, be provided with oil seal spring 10 in the annular groove 7011 that the end face 701 that the wedge angle face 601 of while seal ring 7 and V-type filler 6 compresses is provided with, the end face 701 of seal ring 7 is expanded to both sides, and it is flexible that the expansion of seal ring 7 and contraction are had more, and further guarantees the valve rod 3 of this straight journey modulating valve and the sealing between the stuffing box 4.
Claims (6)
1. straight journey modulating valve with self sealing structure, comprise valve body, valve gap, valve rod, valve body and valve gap pass through bolt, be provided with stuffing box in the valve gap, valve rod is located in the stuffing box, and it is up and down, be provided with black box between described valve rod and the stuffing box, it is characterized in that: black box is made up of seal ring and V-type filler, and the wedge angle face and the seal ring end face of V-type filler offset, and black box is subjected to external force to do the time spent, the middle part that the wedge angle face of V-type filler will crush seal circle end face, the seal ring end face is expanded to both sides, realize sealing; And can realize selfsealings by the valve body internal pressure.
2. a kind of straight journey modulating valve with self sealing structure according to claim 1 is characterized in that: be provided with upper and lower two groups of black boies between valve rod and the stuffing box, be provided with the filler spacer between upper and lower two groups of black boies.
3. a kind of straight journey modulating valve according to claim 1 and 2 with self sealing structure, it is characterized in that: also be provided with packing ring and Gland between valve rod and the stuffing box, from lower to upper erection sequence is followed successively by during assembling: packing ring, the V-type filler, seal ring, filler spacer, V-type filler, seal ring, Gland.
4. a kind of straight journey modulating valve according to claim 1 and 2 with self sealing structure, it is characterized in that: also include oil seal spring in the black box, the end face that the wedge angle face of seal ring and V-type filler compresses is provided with annular groove, is provided with oil seal spring in the groove.
5. a kind of straight journey modulating valve according to claim 3 with self sealing structure, it is characterized in that: also include oil seal spring in the black box, the end face that the wedge angle face of seal ring and V-type filler compresses is provided with annular groove, is provided with oil seal spring in the groove.
6. a kind of straight journey modulating valve with self sealing structure according to claim 3 is characterized in that: be provided with the V-type rubber ring between Gland and the valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202826545U CN201731168U (en) | 2010-08-03 | 2010-08-03 | Linear motion control valve with self-sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202826545U CN201731168U (en) | 2010-08-03 | 2010-08-03 | Linear motion control valve with self-sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201731168U true CN201731168U (en) | 2011-02-02 |
Family
ID=43522325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202826545U Expired - Fee Related CN201731168U (en) | 2010-08-03 | 2010-08-03 | Linear motion control valve with self-sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201731168U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742709A (en) * | 2013-11-29 | 2014-04-23 | 成都欧浦特控制阀门有限公司 | Packing seal structure |
-
2010
- 2010-08-03 CN CN2010202826545U patent/CN201731168U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742709A (en) * | 2013-11-29 | 2014-04-23 | 成都欧浦特控制阀门有限公司 | Packing seal structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107289135B (en) | A kind of compensation marine screw shaft sealing device of axial elasticity | |
| CN107387771B (en) | A kind of sliding squash type marine screw shaft sealing device | |
| CN203009893U (en) | Eccentric semi-ball valve | |
| CN203670884U (en) | Hard seal ball valve with trapezoid graphite seal rings | |
| CN201731168U (en) | Linear motion control valve with self-sealing structure | |
| CN204140974U (en) | A kind of screw down nonreturn valve | |
| CN203717914U (en) | Semi-floating type side door sealing ring | |
| CN101936396B (en) | Shaft seal structure | |
| CN201293101Y (en) | Wave external wall reinforced seal | |
| CN203628007U (en) | Composite packing seal structure | |
| CN210949847U (en) | Combined sealing ring | |
| CN103016777B (en) | Eccentric half-ball valve | |
| CN203454718U (en) | Kiln head sealing structure for rotary kiln | |
| CN201747940U (en) | Plunger piston valve | |
| CN219639638U (en) | Novel packing assembly for regulating valve | |
| CN202158209U (en) | Floating-seat two-way hard sealed butterfly valve | |
| CN202402694U (en) | Hard sealing ball valve seat sealing device suitable for high temperature | |
| CN203115278U (en) | Metal ring sealing stuffing box | |
| CN202674355U (en) | Flat gate valve | |
| CN201818800U (en) | Shaft seal structure | |
| CN207229783U (en) | A kind of three-eccentric-butterfly-valve sealing ring and a kind of three-eccentric-butterfly-valve | |
| CN202612690U (en) | Novel gate valve core embedded type double seal structure | |
| CN202188270U (en) | Fly wheel cover with sealing ring | |
| CN103629373A (en) | High-class soft-sealing safety butterfly valve | |
| CN202867907U (en) | Polycrystalline silicon special ball valve |
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: 20110202 Termination date: 20130803 |