CN209483951U - A kind of sealing adjustable rotary ball-type metal hard-sealing butterfly valve - Google Patents
A kind of sealing adjustable rotary ball-type metal hard-sealing butterfly valve Download PDFInfo
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- CN209483951U CN209483951U CN201822146666.4U CN201822146666U CN209483951U CN 209483951 U CN209483951 U CN 209483951U CN 201822146666 U CN201822146666 U CN 201822146666U CN 209483951 U CN209483951 U CN 209483951U
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Abstract
The utility model relates to a kind of adjustable spiral formula metal hard-sealing butterfly valve of sealing, including valve body, valve seat, valve rod, butterfly plate, it is characterized by: being equipped with a self-adjustable annular sealing mechanism in the butterfly plate outer ring of plane one side in the butterfly plate, self-adjustable flow passage sealing structure is formed by the inner cavity flow-passing surface of the annular sealing mechanism and valve body；The annular sealing mechanism is made of self-adjusting seal ring, O-ring, dished spring assembly and hold-down bolt；The self-adjusting seal ring is placed in the annular groove that butterfly plate outer ring is newly set, the upper and lower surface of the self-adjusting seal ring is respectively provided with a dished spring assembly, the self-adjusting seal ring is together with dished spring assembly is by a hold-down bolt tandem arrangement, and link together with butterfly plate, constitute the flow passage sealing structure of automatic adjustment.
Description
Technical field
Butterfly valve has structure the utility model relates to a kind of valve, and especially a kind of adjustable spiral formula metallic hard of sealing is close
Sealing butterfly valve.
Background technique
Butterfly valve has the characteristics that simple structure, conveniently opening and closing, manufacturing cost are low, is widely used in national economy every profession and trade
Medium delivery pipe road system.In high temperature, wearability medium delivery pipe road, it is desirable that butterfly valve has high high temperature resistant, abrasion resistance properties
Good feature is general using hard sealing cooperation in the design.Currently, the sealing surface of seat of hard seal butterfly valve is generally used in valve body
It is directly process in channel, since sealing surface of seat is scalene cone structure, processing technology is more complicated, leads to sealing surface of seat
There are mismachining tolerances with butterfly plate sealing surface degree, there is certain mismatch error always after causing the two to cooperate, to cause
Existing hard seal butterfly valve sealing performance is poor.Meanwhile in use due to pumped (conveying) medium and sealing surface of seat and butterfly plate
The friction that sealing surface generates, causes the expendable abrasion of sealing surface, does not only result in the decline of sealing pair sealing performance, finally
Influence the service life of byproduct；Therefore a kind of a kind of valve that can be compensated automatically is just needed in practical applications.
Utility model content
The purpose of the present utility model: be directed to it is a kind of can be to the sealer that butterfly valve seal face is compensated automatically
Structure, to achieve the purpose that extend hard seal butterfly valve service life.
This adjustable spiral formula metal hard-sealing butterfly valve of sealing, including valve body 5, valve seat 10, valve rod 8, butterfly plate 6, it is special
Sign is: a self-adjustable annular sealing mechanism is equipped in the butterfly plate outer ring of plane one side in the butterfly plate 6, by the ring
The inner cavity flow-passing surface of shape sealing mechanism and valve body 5 forms self-adjustable flow passage sealing structure；The annular sealing mechanism
It is made of self-adjusting seal ring 13, O-ring 10, dished spring assembly 15 and hold-down bolt 14；The self-adjusting seal ring 13 is placed in
In the annular groove 17 that 6 outer ring of butterfly plate is newly set, the upper and lower surface of the self-adjusting seal ring 13 is respectively provided with a dished spring assembly
15, the self-adjusting seal ring 13 is connected to together with dished spring assembly 15 is by 14 tandem arrangement of a hold-down bolt with butterfly plate 6
Together, the flow passage sealing structure of automatic adjustment is constituted.
Preferably, the self-adjusting seal ring 13 is a profiled piece, and outer ring is that ligule stretches out shape, is coated on the butterfly plate
6 outer rings, outer ring are ligule stretching type, are coated on 6 outer ring of butterfly plate, constitute the direct contact sealing surface with valve body 5.
According to the adjustable spiral formula metal hard-sealing butterfly valve of this sealing that above technical scheme proposes, due to outside valve plate
The self-adjustable flow passage sealing structure of side setting, therefore can guarantee that butterfly plate remains in use and be connect with body cavity
The tight seal state of contacting surface；Even if wearing in use, the self-adjusting seal ring can be also made under the action of dished spring assembly
Good sealing state is in the flow-passing surface of body cavity.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the right view of Fig. 1；
Fig. 3 is the structural schematic diagram (portion Figure 1A enlarged drawing) of self-adjusting seal ring；
Fig. 4 is the operation principle schematic diagram of self-adjusting seal ring；
Fig. 5 is the sealed structural schematic diagram (portion Figure 1B enlarged drawing) of 8 engaging portion of valve body 5 and valve rod.
Each section component Name is as follows in figure:
The sealing of 1- bracket 2- gland 3- filler 4- axle sleeve 5- valve body 6- butterfly plate 7- pin 8- valve rod 9-O type
Enclose 10- valve seat 11- divided ring 12- bottom cover 13- self-adjusting seal ring 14- hold-down bolt 15- dished spring assembly 16- sealing
Engaging portion 17- ring groove 18- sealing ring.
Specific embodiment
The utility model is further described below in conjunction with Figure of description, and provides the embodiments of the present invention.
Fig. 1, Fig. 2 give the entirety of this adjustable spiral formula metal hard-sealing butterfly valve of sealing described in the utility model
Structural schematic diagram.
This sealing adjustable spiral formula metal hard-sealing butterfly valve, it is to the wound generally used now because of sealed butterfly valve
The property made is improved.
This adjustable spiral formula metal hard-sealing butterfly valve of sealing, including valve body 5, valve seat 10, valve rod 8, butterfly plate 6, it is special
Sign is: a self-adjustable annular sealing mechanism is equipped in the butterfly plate outer ring of plane one side in the butterfly plate 6, by the ring
The inner cavity flow-passing surface of shape sealing mechanism and valve body 5 forms self-adjustable flow passage sealing structure；The annular sealing mechanism
It is made of self-adjusting seal ring 6, O-ring, dished spring assembly 14 and hold-down bolt 13；The self-adjusting seal ring 6 is placed in circular
In the annular groove 15 that 6 outer ring of butterfly plate is newly set, the upper and lower surface of the self-adjusting seal ring 6 is respectively provided with a dished spring assembly 14, institute
The self-adjusting seal ring 6 stated links together together with dished spring assembly 14 is by 13 tandem arrangement of a hold-down bolt with butterfly plate, structure
At the flow passage sealing structure of automatic adjustment.
What Fig. 3, Fig. 4 were provided is the structure and operation principle schematic diagram of self-adjusting seal ring.
The self-adjusting seal ring 13 is a profiled piece, and outer ring is that ligule stretches out shape, is coated on 6 outer ring of butterfly plate,
Its outer ring is ligule stretching type, is coated on 6 outer ring of butterfly plate, constitutes the direct contact sealing surface with valve body 5.Described in use
Dished spring assembly 14 utilize its intrinsic tension, play the role of automatic adjustment.
Fig. 5 is the sealed structural schematic diagram of 8 engaging portion of valve body 5 and valve rod.
The outside of the valve rod is equipped with axle sleeve 4, and the lower section of the bearing is equipped with a sealing ring 19.With dust-proof, anti-particulate matter
Into the effect of bearing, play the role of protecting bearing, protection valve rod, the sealing for going out valve rod with filler cooperation is more reliable.
It is the basic embodiment of the utility model that applicant provides according to claim, the technology people of all industry above
Improvement that member makes according to above-mentioned technical proposal, without substantive intention, belongs to the scope of the utility model protection.
Claims (2)
1. a kind of adjustable spiral formula metal hard-sealing butterfly valve of sealing, including valve body (5), valve seat (10), valve rod (8), butterfly plate
(6), it is characterised in that: be equipped with a self-adjustable annular seal machine in the butterfly plate outer ring of plane one side in the butterfly plate (6)
Structure forms self-adjustable flow passage sealing structure by the inner cavity flow-passing surface of the annular sealing mechanism and valve body (5)；Described
Annular sealing mechanism is made of self-adjusting seal ring (13), O-ring (9), dished spring assembly (15) and hold-down bolt (14)；It is described from
It adjusts sealing ring (13) to be placed in the annular groove (17) that butterfly plate (6) outer ring is newly set, the self-adjusting seal ring (13)
Upper and lower surface be respectively provided with a dished spring assembly (15), the self-adjusting seal ring (13) and dished spring assembly (15) are compressed by one
Bolt (14) tandem arrangement together, and links together with butterfly plate, constitutes the flow passage sealing structure of automatic adjustment.
2. a kind of adjustable spiral formula metal hard-sealing butterfly valve of sealing as described in claim 1, it is characterised in that: the self-regulated
Saving sealing ring (13) is a profiled piece, and outer ring is ligule stretching type, is coated on the butterfly plate (6) outer ring, constitutes and valve body (5)
Direct contact sealing surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822146666.4U CN209483951U (en) | 2018-12-20 | 2018-12-20 | A kind of sealing adjustable rotary ball-type metal hard-sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822146666.4U CN209483951U (en) | 2018-12-20 | 2018-12-20 | A kind of sealing adjustable rotary ball-type metal hard-sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209483951U true CN209483951U (en) | 2019-10-11 |
Family
ID=68127789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822146666.4U Active CN209483951U (en) | 2018-12-20 | 2018-12-20 | A kind of sealing adjustable rotary ball-type metal hard-sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209483951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043329A (en) * | 2020-01-16 | 2020-04-21 | 山东超力阀门制造有限公司 | Butterfly valve with sub-cavity buffering function |
-
2018
- 2018-12-20 CN CN201822146666.4U patent/CN209483951U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043329A (en) * | 2020-01-16 | 2020-04-21 | 山东超力阀门制造有限公司 | Butterfly valve with sub-cavity buffering function |
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