CN209370582U - A kind of sealing device for valve rod - Google Patents
A kind of sealing device for valve rod Download PDFInfo
- Publication number
- CN209370582U CN209370582U CN201822271739.2U CN201822271739U CN209370582U CN 209370582 U CN209370582 U CN 209370582U CN 201822271739 U CN201822271739 U CN 201822271739U CN 209370582 U CN209370582 U CN 209370582U
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- China
- Prior art keywords
- valve rod
- sealing
- valve
- gasket
- valve body
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Abstract
The utility model discloses a kind of sealing devices for valve rod, including valve body, the inner rotation of the valve body is connected with valve rod, sealing cover is provided on the valve rod, seal chamber is formed between the valve rod and sealing cover, the part that the valve rod is located at seal chamber is provided with filler cushion block and packing seal set, is filled with airtight and watertight padding between the filler cushion block and packing seal set, sealing mechanism wear-resistant sleeve is provided on the valve rod, the sealing mechanism includes gasket.The utility model ensure that the leakproofness between valve rod and sealing cover by airtight and watertight padding; it ensure that the leakproofness between valve rod and valve inner using sealing mechanism; duplicate protection is achieved the effect that; when in use; using wear-resistant sleeve prevent valve rod directly with the lumen contact of valve body; it can to avoid the abrasion of valve rod and valve body, to extend the service life of sealing mechanism, it is ensured that valve rod is chronically at the state of favorable sealing property.
Description
Technical field
The utility model relates to valve rod sealing device technical field, specially a kind of sealing device for valve rod.
Background technique
Common ball valve is made of valve rod and valve body, and valve rod passes through the through-hole of valve body.The working principle of ball valve is by turning
Ovable valve stem carrys out the open and close of control valve, leaks in order to prevent, it is desirable that is sealed between valve rod and valve body.
Currently, the valve rod sealing device of most of ball valve mainly prevents from leaking by packing seal, but ball valve makes
It is varied with environment, it is opened and closed when ball valve needs are frequent, the abrasion of filler can be accelerated, while when working environment is long-term
Under vibration environment, airtight and watertight padding relaxation can be made to cause leakage, influence the leakproofness of ball valve.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of sealing device for valve rod, solves existing
Sealing device between ball-valve valve rod and valve body the problem of sealing performance is not good.
(2) technical solution
To achieve the above object, the utility model provides the following technical solutions: a kind of sealing device for valve rod, including
Valve body, the inner rotation of the valve body are connected with valve rod, sealing cover are provided on the valve rod, between the valve rod and sealing cover
Form seal chamber, the part that the valve rod is located at seal chamber is provided with filler cushion block and packing seal set, the filler cushion block and
It is filled with airtight and watertight padding between packing seal set, is provided with sealing mechanism wear-resistant sleeve on the valve rod, the sealing mechanism includes
Gasket, the quantity of the gasket are two, are provided with sealing ring between two gasket opposite sides, described close
The quantity of seal is two, is fixedly installed with buffer spring between two sealing ring opposite sides.
The technical program is advanced optimized, the sealing cover is fixedly connected with the valve body by bolt.
The technical program is advanced optimized, the filler cushion block is fixedly connected with the surface of valve rod with packing seal set.
The technical program is advanced optimized, sealing clamp is fixedly mounted in the surface of the valve rod.
The technical program is advanced optimized, the sealing clamp is fixedly connected by screw with sealing cover.
The technical program is advanced optimized, the sealing ring, gasket and buffer spring are socketed in the surface of valve rod.
The technical program is advanced optimized, the gasket is polytetrafluoroethylene sealing gasket, and the sealing ring is O-shaped sealing
Circle.
(3) beneficial effect
Compared with prior art, the utility model provides a kind of sealing device for valve rod, has following beneficial to effect
Fruit:
This is used for the sealing device of valve rod, ensure that the leakproofness between valve rod and sealing cover by airtight and watertight padding, in benefit
It ensure that the leakproofness between valve rod and valve inner with sealing mechanism, achieved the effect that duplicate protection, when in use, utilize
Wear-resistant sleeve prevents valve rod directly with the lumen contact of valve body, can be to avoid the abrasion of valve rod and valve body, to extend sealing mechanism
Service life, it is ensured that valve rod is chronically at the state of favorable sealing property.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the portion A structure enlargement diagram in the utility model Fig. 1.
In figure: 1, valve body；2, valve rod；3, sealing cover；4, bolt；5, seal chamber；6, filler cushion block；7, airtight and watertight padding；8,
Packing seal set；9, sealing clamp；10, screw；11, sealing mechanism；1101, gasket；1102, sealing ring；1103, buffering elastic
Spring；12, wear-resistant sleeve.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of technical solution referring to FIG. 1-2: a kind of sealing device for valve rod, including valve
Body 1, the inner rotation of valve body 1 are connected with valve rod 2, and sealing cover 3 is provided on valve rod 2, is formed between valve rod 2 and sealing cover 3 close
Chamber 5 is sealed, the part that valve rod 2 is located at seal chamber 5 is provided with filler cushion block 6 and packing seal set 8, filler cushion block 6 and packing seal
It is filled with airtight and watertight padding 7 between set 8,11 wear-resistant sleeve 12 of sealing mechanism is provided on valve rod 2, sealing mechanism 11 includes gasket
1101, the quantity of gasket 1101 is two, is provided with sealing ring 1102 between two 1101 opposite sides of gasket, sealing
The quantity of circle 1102 is two, is fixedly installed with buffer spring 1103 between two 1102 opposite sides of sealing ring, passes through sealing
Filler 7 ensure that the leakproofness between valve rod 2 and sealing cover 3, ensure that inside valve rod 2 and valve body 1 using sealing mechanism 11
Between leakproofness, achieved the effect that duplicate protection, when in use, using wear-resistant sleeve 12 prevent valve rod 2 directly with valve body 1
Lumen contact, can be to avoid the abrasion of valve rod 2 and valve body 1, to extend the service life of sealing mechanism 11, it is ensured that valve
Bar 2 is chronically at the state of favorable sealing property.
Specifically, sealing cover 3 is fixedly connected by bolt 4 with valve body 1, sealing cover 3 is fixed, ensure that ball valve
Normal use.
Specifically, filler cushion block 6 is fixedly connected with the surface of valve rod 2 with packing seal set 8, Packing seat ensure that
Block 6 and packing seal cover the stability of 8 structures.
Specifically, valve rod 2 surface be fixedly mounted sealing clamp 9, using sealing clamp 9 can to packing seal cover 8 into
Row sealing and reinforcing, so that playing prevents airtight and watertight padding 7 from overflowing.
Specifically, sealing clamp 9 is fixedly connected by screw 10 with sealing cover 3, it is ensured that the stability of sealing clamp 9.
Specifically, sealing ring 1102, gasket 1101 and buffer spring 1103 are socketed in the surface of valve rod 2, using slow
Rush the leakproofness that spring 1103 reinforces sealing ring 1102 and gasket 1101 and 1 internal cavities of valve body.
Specifically, gasket 1101 is polytetrafluoroethylene sealing gasket, sealing ring 1102 is O-ring seal, and wear-resisting formation is excellent
More.
In conclusion this is used for the sealing device of valve rod, ensure that between valve rod 2 and sealing cover 3 by airtight and watertight padding 7
Leakproofness ensure that the leakproofness between 1 inside of valve rod 2 and valve body using sealing mechanism 11, reach the effect of duplicate protection
Fruit prevents lumen contact of the valve rod 2 directly with valve body 1 using wear-resistant sleeve 12 when in use, can be to avoid valve rod 2 and valve body 1
Abrasion, to extend the service life of sealing mechanism 11, it is ensured that valve rod 2 is chronically at the state of favorable sealing property.
It should be noted that, in this document, such as the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of sealing device for valve rod, including valve body (1), it is characterised in that: the inner rotation of the valve body (1) connects
Have valve rod (2), be provided with sealing cover (3) on the valve rod (2), forms seal chamber between the valve rod (2) and sealing cover (3)
(5), the part that the valve rod (2) is located at seal chamber (5) is provided with filler cushion block (6) and packing seal set (8), the Packing seat
Airtight and watertight padding (7) are filled between block (6) and packing seal set (8), it is wear-resisting to be provided with sealing mechanism (11) on the valve rod (2)
It covers (12), the sealing mechanism (11) includes gasket (1101), and the quantity of the gasket (1101) is two, two institutes
It states and is provided with sealing ring (1102) between gasket (1101) opposite side, the quantity of the sealing ring (1102) is two, two
Buffer spring (1103) are fixedly installed between a sealing ring (1102) opposite side.
2. a kind of sealing device for valve rod according to claim 1, it is characterised in that: the sealing cover (3) passes through
Bolt (4) is fixedly connected with valve body (1).
3. a kind of sealing device for valve rod according to claim 1, it is characterised in that: the filler cushion block (6) with
Packing seal set (8) is fixedly connected with the surface of valve rod (2).
4. a kind of sealing device for valve rod according to claim 1, it is characterised in that: the surface of the valve rod (2)
It is fixedly mounted sealing clamp (9).
5. a kind of sealing device for valve rod according to claim 4, it is characterised in that: the sealing clamp (9) is logical
Screw (10) is crossed to be fixedly connected with sealing cover (3).
6. a kind of sealing device for valve rod according to claim 1, it is characterised in that: the sealing ring (1102),
Gasket (1101) and buffer spring (1103) are socketed in the surface of valve rod (2).
7. a kind of sealing device for valve rod according to claim 1, it is characterised in that: the gasket (1101) is
Polytetrafluoroethylene sealing gasket, the sealing ring (1102) are O-ring seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822271739.2U CN209370582U (en) | 2018-12-29 | 2018-12-29 | A kind of sealing device for valve rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822271739.2U CN209370582U (en) | 2018-12-29 | 2018-12-29 | A kind of sealing device for valve rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209370582U true CN209370582U (en) | 2019-09-10 |
Family
ID=67828775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822271739.2U Active CN209370582U (en) | 2018-12-29 | 2018-12-29 | A kind of sealing device for valve rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209370582U (en) |
-
2018
- 2018-12-29 CN CN201822271739.2U patent/CN209370582U/en active Active
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