CN206754397U - Seal receptacle anti-dropout sealing structure on center line flange form butterfly valve - Google Patents
Seal receptacle anti-dropout sealing structure on center line flange form butterfly valve Download PDFInfo
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- CN206754397U CN206754397U CN201720476435.2U CN201720476435U CN206754397U CN 206754397 U CN206754397 U CN 206754397U CN 201720476435 U CN201720476435 U CN 201720476435U CN 206754397 U CN206754397 U CN 206754397U
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- seal receptacle
- valve
- seal
- dropout
- valve body
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Abstract
It the utility model is related to a kind of seal receptacle anti-dropout sealing structure on center line flange form butterfly valve, including valve body and seal receptacle, it is characterised in that：The centre position of the valve body latus rectum part is more than 3~5mm of valve shaft external diameter at least provided with 2 annular stop grooves, the spacing of annular groove；On the both ends of the surface seal boss of valve body seal receptacle spiral-lock groove is provided with close to valve pocket position；The position that the outer wall of seal receptacle corresponds to valve interior wall annular stop groove is provided with spacing preiection；The both ends of seal receptacle are arranged with sealing panel, and sealing panel tip inside face is provided with the fastening protuberance coordinated with seal receptacle spiral-lock groove.Using above-mentioned technical proposal, solves the fit form of traditional valve body and seal receptacle, realize the purpose of quick assembling and the dimension maintenance of live quick-replaceable, solve the problems, such as that seal receptacle comes off, solves the problems, such as the axial float when valve plate opens and closes, sealing effectiveness is improved, the utility model also has the advantages that simple in construction, reasonable in design, easy installation and removal in addition.
Description
Technical field
The utility model belongs to center line flange form butterfly valve seal technical field, is used for center line flange form more particularly to one kind
Seal receptacle anti-dropout sealing structure on butterfly valve.
Background technology
It is well known that the sealing pair in valve is between valve plate and seal receptacle, between valve body and seal receptacle, sealing pair at two
Sealing effectiveness will directly affect the quality of valve body, current existing seal receptacle is to vulcanize rubber system on the backrest of seal receptacle
Into, its complex manufacturing technology, and bothersome laborious, frequent the problem of leaking is assembled, once leakage does not damage in valve body
In the case of general replacement burn-up rubber vulcanize again, form seal receptacle, but due to the mounting means of existing seal receptacle, cause
Dismounting, changes the problem of cumbersome；A kind of mounting structure of seal receptacle is designed for this, removes the backrest on existing seal receptacle, simultaneously
Ensureing the relative position of seal receptacle and valve body, solving the problems, such as to realize assembling and live repair and replacement difficulty.
The content of the invention
The utility model provides a kind of simple in construction, side of installing and using to solve technical problem present in known technology
Just efficiency of assembling, is improved, placement seal receptacle is come off, scene is changed readily for the seal receptacle anticreep on center line flange form butterfly valve
Fall sealing structure.
The utility model is adopted the technical scheme that to solve technical problem present in known technology：
A kind of seal receptacle anti-dropout sealing structure on center line flange form butterfly valve, including valve body and seal receptacle, it is special
Sign is：The centre position of the valve body latus rectum part is at least provided with 2 annular stop grooves, the depth of annular stop groove
2~3mm, the spacing of annular groove are more than 3~5mm of valve shaft external diameter；Close to valve pocket position on the both ends of the surface seal boss of the valve body
Seal receptacle spiral-lock groove is installed, the depth of the seal receptacle spiral-lock groove is 3~5mm；The outer wall of the seal receptacle is corresponded in valve body
The position of wall circular limited impression is provided with spacing preiection；The both ends of the seal receptacle are arranged with sealing panel, the sealing surface
Plate tip inside face is provided with the fastening protuberance coordinated with seal receptacle spiral-lock groove.
The utility model can also use following technical measures：
Gap coordinates the spacing preiection in the axial direction with annular stop groove, and fit clearance is 0.1~0.3mm；Limit
Position projection is interference fit in radial direction with annular stop groove, and the magnitude of interference is 0.1~0.2mm.
The fastening protuberance coordinates with seal receptacle spiral-lock groove in radial direction for gap, and fit clearance is 0.5~1mm.
Chamfering is provided with less than internal diameter of the pipeline 1mm position valve bodies and sealing panel cooperation.
Several seal convexities are provided with the lateral surface of sealing panel.
The utility model has the advantages and positive effects of：The utility model uses above-mentioned technical proposal, solves biography
The fit form of system valve body and seal receptacle, realize the purpose of quick assembling and the maintenance of live quick-replaceable, valve body and seal receptacle
Fit form use spacing fit structure, effectively solve the problems, such as that seal receptacle comes off, solve valve plate open and close
When closing the problem of axial float, sealing effectiveness is improved, the utility model also has simple in construction, reasonable in design, installation in addition
The advantages that convenient disassembly.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is Fig. 1 side view；
Fig. 3 is A-A sectional views in Fig. 2；
Fig. 4 is I portions enlarged drawing in Fig. 3；
Fig. 5 is II portions enlarged drawing in Fig. 3.
In figure：1st, valve body；1-1, annular stop groove；1-2, seal receptacle spiral-lock groove；1-3, chamfering；2nd, seal receptacle；2-1、
Spacing preiection；2-2, sealing panel；2-3, fasten protuberance；2-4, seal convexity；3rd, valve shaft；4th, valve plate.
Embodiment
For invention, features and effects of the present utility model can be further appreciated that, following examples are hereby enumerated, and coordinate
Accompanying drawing describes in detail as follows：
Refer to Fig. 1 to Fig. 5, a kind of seal receptacle anti-dropout sealing structure on center line flange form butterfly valve, including valve
Body 1 and seal receptacle 2, the centre position of the valve body latus rectum part is at least provided with 2 annular stop groove 1-1, the present embodiment 2
Individual annular spacing groove, the depth of annular stop groove are 2~3mm, the spacing of two annular grooves be more than the external diameter 3 of valve shaft 3~
5mm；On the both ends of the surface seal boss of the valve body seal receptacle spiral-lock groove 1-2, the seal receptacle spiral-lock are provided with close to valve pocket position
Groove 1-2 depth is 3~5mm；The position that the outer wall of the seal receptacle 2 corresponds to valve interior wall annular stop groove is provided with limit convex
Play 2-1；Gap coordinates the spacing preiection in the axial direction with annular stop groove, and fit clearance is 0.1~0.3mm；It is spacing
Raised and annular stop groove is interference fit in radial direction, and the magnitude of interference is 0.1~0.2mm.Its purpose valve plate open and
Seal receptacle is prevented during closing in the axial displacement of sealing station, while seal receptacle deforms to two side clearances in closure, in footpath
Increase the magnitude of interference to direction, and then improve sealing effectiveness.
The both ends of the seal receptacle are arranged with sealing panel 2-2, and the sealing panel tip inside face is provided with and sealing
The fastening protuberance 2-3 that seat spiral-lock groove coordinates；The fastening protuberance coordinates with seal receptacle spiral-lock groove in radial direction for gap,
Fit clearance is 0.5~1mm.The purpose is to convenient for assembly, and in long-time transportation seal receptacle be not easy it is unrestrained.
In order to prevent destroying seal receptacle after assembling, described less than internal diameter of the pipeline 1mm positions valve body 1 and sealing panel 2-
It is provided with 2 cooperations between chamfering 1-3 seal receptacles and valve body without acute angle, avoids destruction of the valve body to seal receptacle.
In order to further improve the sealing effectiveness of seal face, it is convex to be provided with several sealings in sealing panel 2-2 lateral surface
Play 2-4.
Using above-mentioned technical proposal, solve the fit form of traditional valve body and seal receptacle, realize quick assembling and scene
The fit form of the purpose of quick-replaceable dimension maintenance, valve body and seal receptacle uses spacing fit structure, effectively solves sealing
The problem of seat comes off, solve the problems, such as the axial float when valve shaft 3 drives valve plate 4 to open and close, improve sealing effectiveness,
Other the utility model also has the advantages that simple in construction, reasonable in design, easy installation and removal.
Described above is only to preferred embodiment of the present utility model, not the utility model is made any formal
Limitation, it is every according to the technical essence of the utility model to any simple modification made for any of the above embodiments, equivalent variations with
Modification, is belonged in the range of technical solutions of the utility model.
Claims (5)
1. a kind of seal receptacle anti-dropout sealing structure on center line flange form butterfly valve, including valve body and seal receptacle, its feature
It is：At least provided with 2 annular stop grooves, the depth of annular stop groove is 2 in the centre position of the valve body latus rectum part
~3mm, the spacing of annular groove are more than 3~5mm of valve shaft external diameter；Close to valve pocket position on the both ends of the surface seal boss of the valve body
Provided with seal receptacle spiral-lock groove, the depth of the seal receptacle spiral-lock groove is 3~5mm；The outer wall of the seal receptacle corresponds to valve interior wall
The position of annular stop groove is provided with spacing preiection；The both ends of the seal receptacle are arranged with sealing panel, the sealing panel
Tip inside face is provided with the fastening protuberance coordinated with seal receptacle spiral-lock groove.
2. the seal receptacle anti-dropout sealing structure according to claim 1 on center line flange form butterfly valve, its feature exists
In：Gap coordinates the spacing preiection in the axial direction with annular stop groove, and fit clearance is 0.1~0.3mm；Spacing preiection
With annular stop groove in radial direction to be interference fitted, the magnitude of interference is 0.1~0.2mm.
3. the seal receptacle anti-dropout sealing structure according to claim 1 on center line flange form butterfly valve, its feature exists
In：The fastening protuberance coordinates with seal receptacle spiral-lock groove in radial direction for gap, and fit clearance is 0.5~1mm.
4. the seal receptacle anti-dropout sealing structure according to claim 1 on center line flange form butterfly valve, its feature exists
In：Chamfering is provided with less than internal diameter of the pipeline 1mm position valve bodies and sealing panel cooperation.
5. the seal receptacle anti-dropout sealing structure according to claim 1 on center line flange form butterfly valve, its feature exists
In：Several seal convexities are provided with the lateral surface of sealing panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720476435.2U CN206754397U (en) | 2017-05-02 | 2017-05-02 | Seal receptacle anti-dropout sealing structure on center line flange form butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720476435.2U CN206754397U (en) | 2017-05-02 | 2017-05-02 | Seal receptacle anti-dropout sealing structure on center line flange form butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206754397U true CN206754397U (en) | 2017-12-15 |
Family
ID=60614985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720476435.2U Active CN206754397U (en) | 2017-05-02 | 2017-05-02 | Seal receptacle anti-dropout sealing structure on center line flange form butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206754397U (en) |
-
2017
- 2017-05-02 CN CN201720476435.2U patent/CN206754397U/en active Active
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