CN213017770U - Hard-sealing three-eccentric butterfly valve - Google Patents
Hard-sealing three-eccentric butterfly valve Download PDFInfo
- Publication number
- CN213017770U CN213017770U CN202021856960.5U CN202021856960U CN213017770U CN 213017770 U CN213017770 U CN 213017770U CN 202021856960 U CN202021856960 U CN 202021856960U CN 213017770 U CN213017770 U CN 213017770U
- Authority
- CN
- China
- Prior art keywords
- valve plate
- valve
- sealing
- wall
- hole
- 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.)
- Active
Links
Images
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a three eccentric butterfly valves of hard seal, which comprises a valve body, the upper end of valve body is equipped with drive assembly, and valve body center part has seted up the circular shape through-hole to valve body center through-hole inner wall is equipped with annular lock ring, valve body center through-hole still is equipped with the valve plate, and the upper and lower end of valve plate is equipped with valve plate fixed axle to the outer lane of valve plate is equipped with a plurality of locating piece, first screw hole has been seted up to the outer wall of valve plate, the two sides of valve plate are equipped with annular gasket, and the outer wall of gasket has seted up the second screw hole to the fixed axle mounting groove has been seted up to the outer wall of. The sealing structure is arranged inside the hard-sealing triple eccentric butterfly valve, the sealing effect can be improved, meanwhile, the sealing replacement of the device is simple, and the later maintenance work is facilitated.
Description
Technical Field
The utility model relates to a three eccentric butterfly valves technical field specifically are a three eccentric butterfly valves of hard seal.
Background
The valve rod axis of the three-eccentric butterfly valve deviates from the center of the disc and the center of the body at the same time, and the valve seat rotation axis has a certain angle with the axis of the valve body channel, so the three-eccentric butterfly valve is called as the three-eccentric butterfly valve and the three-eccentric butterfly valve, and is widely used for industrial pipelines with medium temperature less than or equal to 425 ℃ for flow regulation and fluid carrying and breaking on metallurgy, electric power, petrochemical industry, water supply and drainage, municipal construction and the like.
After the existing triple-eccentric butterfly valve is used for a long time, the edge of a valve plate inside the triple-eccentric butterfly valve is easy to wear, so that the valve can leak when being closed, the sealing performance of the valve is reduced, and the later maintenance is more complicated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a three eccentric butterfly valves seal firmly to solve the three eccentric butterfly valves in the existing market that above-mentioned background art provided and after long-time use, the condition of wearing and tearing appears easily in its inside valve plate edge, the condition of seepage can appear when closing the valve like this, reduces the leakproofness of valve, and the more loaded down with trivial details problem of later maintenance.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a three eccentric butterfly valves of hard seal, includes the valve body, the upper end of valve body is equipped with drive assembly, and valve body center part has seted up the circular shape through-hole to valve body center through-hole inner wall is equipped with annular lock ring, valve body center through-hole still is equipped with the valve plate, and the upper and lower end of valve plate is equipped with valve plate fixed axle to the outer lane of valve plate is equipped with a plurality of locating piece, first screw hole has been seted up to the outer wall of valve plate, the two sides of valve plate are equipped with annular gasket, and the outer wall of gasket has seted up the second screw hole to the fixed axle mounting groove has been seted up to.
Preferably, the inner side of the support ring is provided with an annular groove, a seal ring is clamped in the annular groove of the support ring, and the inner side of the seal ring is arc-shaped.
Preferably, the outer wall of the sealing ring is provided with a through hole, a sealing ring fixing screw is arranged in the through hole in the outer wall of the sealing ring, and the sealing ring fixing screw penetrates through the sealing ring and is fixed on the supporting ring.
Preferably, the outer wall of the sealing piece is provided with positioning block mounting grooves distributed in a cross shape, and the positions of the positioning block mounting grooves correspond to the positions of the positioning blocks.
Preferably, the position of the first threaded hole on the valve plate corresponds to the position of the second threaded hole on the sealing sheet, and fixing bolts are arranged in the first threaded hole and the second threaded hole.
Preferably, the inner diameter of the fixing shaft mounting groove is larger than the outer ring diameter of the valve plate fixing shaft, and one end of the valve plate fixing shaft is connected with the driving assembly.
Compared with the prior art, the beneficial effects of the utility model are that: the sealing structure is arranged inside the hard-sealing triple eccentric butterfly valve, the sealing effect can be improved, meanwhile, the sealing replacement of the device is simple, and the later maintenance work is facilitated. The supporting ring of the device plays a role in fixing the sealing ring, the sealing ring can be fixed on the valve plate through the fixing bolt, the sealing plate can be conveniently replaced when being worn, the sealing ring can be attached to the outer rings of the two sealing plates, and the sealing effect of the device is improved.
Drawings
FIG. 1 is a schematic structural view of a hard-sealed triple offset butterfly valve of the present invention;
fig. 2 is a sectional view taken at a-a in fig. 1 of the hard seal triple offset butterfly valve of the present invention;
fig. 3 is an enlarged schematic structural view of a hard seal triple offset butterfly valve of the present invention at the position B in fig. 2;
FIG. 4 is a schematic structural view of a valve plate of a hard-seal triple offset butterfly valve according to the present invention;
fig. 5 is the utility model discloses a sealed three eccentric butterfly valve gasket structure sketch map of hard seal.
In the figure: 1. the valve comprises a driving assembly, 2, a valve body, 3, a support ring, 4, a sealing ring, 5, a sealing sheet, 6, a valve plate, 7, a fixing bolt, 8, a sealing ring fixing screw, 9, a valve plate fixing shaft, 10, a positioning block, 11, a first threaded hole, 12, a fixing shaft mounting groove, 13, a positioning block mounting groove, 14 and a second threaded hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a hard-sealing three-eccentric butterfly valve comprises a valve body 2, a driving component 1 is arranged at the upper end of the valve body 2, a circular through hole is formed in the center of the valve body 2, an annular supporting ring 3 is arranged on the inner wall of the central through hole of the valve body 2, an annular groove is formed in the inner side of the supporting ring 3, a sealing ring 4 is clamped in the annular groove of the supporting ring 3, the inner side of the sealing ring 4 is arc-shaped, the groove in the inner side of the supporting ring 3 of the structure plays a role of accommodating the sealing ring 4, the outer ring of the sealing ring 4 can be fixed, the fixing effect of the sealing ring 4 is improved, the inner side of the sealing ring 4 is arc-shaped, so that the inner ring of the sealing ring 4 can be attached to the outer ring of a sealing sheet 5, the sealing effect is improved, a through hole is formed in the outer wall of the sealing ring 4, the sealing ring 4 with the structure can be fixed on the supporting ring 3 through a sealing ring fixing screw 8, the fixing effect of the sealing ring 4 is improved, the situation that the sealing ring 4 displaces on the inner side of the supporting ring 3 is avoided, the valve plate 6 is further arranged at the central through hole of the valve body 2, the upper end and the lower end of the valve plate 6 are provided with valve plate fixing shafts 9, the outer ring of the valve plate 6 is provided with a plurality of positioning blocks 10, the outer wall of the valve plate 6 is provided with a first threaded hole 11, the position of the first threaded hole 11 on the valve plate 6 corresponds to the position of a second threaded hole 14 on the sealing sheet 5, fixing bolts 7 are arranged in the first threaded hole 11 and the second threaded hole 14, the first threaded hole 11 and the second threaded hole 14 of the structure play a role of containing the fixing bolt 7, different sealing sheets 5 can be fixed on the valve plate 6 through the fixing bolts 7, annular sealing sheets, and the outer wall of the sealing sheet 5 is provided with a second threaded hole 14, the outer wall of the sealing sheet 5 is provided with a fixed shaft mounting groove 12, the outer wall of the sealing sheet 5 is provided with a positioning block mounting groove 13 distributed in a cross shape, and the position of the positioning block mounting groove 13 corresponds to the position of the positioning block 10, the positioning block mounting groove 13 of the structure plays a role of accommodating the positioning block 10, the position can be fixed through the positioning block 10, the sealing sheet 5 is prevented from rotating, the fixing effect of the sealing sheet 5 is improved, the inner diameter of the fixing shaft mounting groove 12 is larger than the outer ring diameter of the valve plate fixing shaft 9, and one end of the valve plate fixed shaft 9 is connected with the driving component 1, the fixed shaft mounting groove 12 of the structure plays a role of accommodating the valve plate fixed shaft 9, so that the valve plate fixed shaft 9 can be connected to the driving component 1 of the valve body 2, and the valve plate fixed shaft 9 can drive the valve plate 6 to rotate together when rotating.
The working principle is as follows: when the hard-seal three-eccentric butterfly valve is used, firstly, a valve body 2 of the device is arranged at a proper position, then a valve plate fixing shaft 9 is driven to rotate through a driving component 1, then the valve plate fixing shaft 9 can drive a valve plate 6 to rotate, then the valve plate 6 drives a sealing piece 5 to rotate, the sealing piece 5 can rotate out of the sealing ring 4, therefore, the device is in an open state, if the sealing ring 4 or the sealing piece 5 is worn, a fixing bolt 7 is taken out from a first threaded hole 11 and a second threaded hole 14, then the worn sealing piece 5 can be replaced, a positioning block 10 can be clamped in a groove on the outer wall of the sealing piece 5, the position of the sealing piece 5 is fixed, the sliding condition of the sealing piece 5 is avoided, when the sealing ring 4 needs to be replaced, the sealing ring fixing screw 8 is firstly detached from the sealing ring 4, then taking out the worn sealing ring 4 from the groove of the support ring 3, then directly clamping a new sealing ring 4 into the groove on the inner side of the support ring 3, and fixing the sealing ring 4 through a sealing ring fixing screw 8 again, thereby completing a series of work.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a three off-centre butterfly valves of hard seal, includes valve body (2), its characterized in that: the upper end of valve body (2) is equipped with drive assembly (1), and valve body (2) central point has seted up the circular shape through-hole to valve body (2) central through-hole inner wall is equipped with annular lock ring (3), valve body (2) central through-hole still is equipped with valve plate (6), and the upper and lower end of valve plate (6) is equipped with valve plate fixed axle (9) to the outer lane of valve plate (6) is equipped with a plurality of locating piece (10), first screw hole (11) have been seted up to the outer wall of valve plate (6), the two sides of valve plate (6) are equipped with annular gasket (5), and the outer wall of gasket (5) has seted up second screw hole (14) to fixed axle mounting groove (12) have been seted up to the outer wall of gasket (5).
2. A hard-seal triple offset butterfly valve in accordance with claim 1, wherein: the inner side of the support ring (3) is provided with an annular groove, a seal ring (4) is clamped in the annular groove of the support ring (3), and the inner side of the seal ring (4) is arc-shaped.
3. A hard-seal triple offset butterfly valve in accordance with claim 2, wherein: the outer wall of the sealing ring (4) is provided with a through hole, a sealing ring fixing screw (8) is arranged in the through hole in the outer wall of the sealing ring (4), and the sealing ring fixing screw (8) penetrates through the sealing ring (4) and is fixed on the supporting ring (3).
4. A hard-seal triple offset butterfly valve in accordance with claim 1, wherein: the outer wall of the sealing piece (5) is provided with a cross-shaped distributed positioning block mounting groove (13), and the position of the positioning block mounting groove (13) corresponds to the position of the positioning block (10).
5. A hard-seal triple offset butterfly valve in accordance with claim 1, wherein: the position of the first threaded hole (11) on the valve plate (6) corresponds to the position of the second threaded hole (14) on the sealing sheet (5), and fixing bolts (7) are arranged in the first threaded hole (11) and the second threaded hole (14).
6. A hard-seal triple offset butterfly valve in accordance with claim 1, wherein: the inner diameter of the fixed shaft mounting groove (12) is larger than the outer ring diameter of the valve plate fixed shaft (9), and one end of the valve plate fixed shaft (9) is connected with the driving component (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021856960.5U CN213017770U (en) | 2020-08-31 | 2020-08-31 | Hard-sealing three-eccentric butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021856960.5U CN213017770U (en) | 2020-08-31 | 2020-08-31 | Hard-sealing three-eccentric butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213017770U true CN213017770U (en) | 2021-04-20 |
Family
ID=75473375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021856960.5U Active CN213017770U (en) | 2020-08-31 | 2020-08-31 | Hard-sealing three-eccentric butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213017770U (en) |
-
2020
- 2020-08-31 CN CN202021856960.5U patent/CN213017770U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111720557B (en) | Novel stop valve | |
| CN213017770U (en) | Hard-sealing three-eccentric butterfly valve | |
| CN212273073U (en) | Groove butterfly valve with anti-seepage gasket | |
| CN219345547U (en) | Double-seal sandwich valve | |
| CN212297674U (en) | Knife gate valve | |
| CN212055878U (en) | Novel two-way elasticity butterfly valve sealed firmly | |
| CN201221613Y (en) | Switch valve | |
| CN212080196U (en) | Five-dimensional eccentric valve rigid line sealing structure | |
| CN211779084U (en) | Wear-resistant ball valve | |
| CN202348682U (en) | Slow-rotary-speed corrosion-resisting wear-resisting centrifugal pump | |
| CN212028565U (en) | Novel triple eccentric hard seal butterfly valve | |
| CN213512195U (en) | Valve with adjusting mark and scale | |
| CN215806429U (en) | Novel general gate valve with improved structure | |
| CN215950403U (en) | Utilize intelligent building balanced valve of building qualification pressure differential electricity generation | |
| CN212804501U (en) | Ceramic hard sealing double-eccentric valve | |
| CN217130358U (en) | Replaceable double-eccentric butterfly valve | |
| CN211039750U (en) | L IP SEA L sealing structure ball valve | |
| CN220646794U (en) | High leakproofness butterfly valve | |
| CN214367809U (en) | Multiple high-efficient sealed high performance fire prevention double eccentric butterfly valve | |
| CN218152448U (en) | Wear-resistant ball valve | |
| CN211423412U (en) | Butt clamp type butterfly valve | |
| CN212616349U (en) | High leakproofness valve | |
| CN216975815U (en) | Butterfly valve with wrench | |
| CN220540330U (en) | Butterfly valve with sealing ring replaced without disassembly | |
| CN215596427U (en) | Gate valve for controlling medium switch of low-pressure pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |