CN219911784U - Soft seal butt-clamping butterfly valve - Google Patents
Soft seal butt-clamping butterfly valve Download PDFInfo
- Publication number
- CN219911784U CN219911784U CN202321549380.5U CN202321549380U CN219911784U CN 219911784 U CN219911784 U CN 219911784U CN 202321549380 U CN202321549380 U CN 202321549380U CN 219911784 U CN219911784 U CN 219911784U
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- Prior art keywords
- valve
- sealing
- butterfly
- butterfly plate
- valve body
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- 238000007789 sealing Methods 0.000 claims abstract description 67
- 238000012856 packing Methods 0.000 claims description 21
- 229920001971 elastomer Polymers 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 6
- 210000004907 gland Anatomy 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 abstract description 3
- 230000032683 aging Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model discloses a soft sealing butt-clamping butterfly valve, which comprises a valve body, a butterfly plate, a valve rod and a power mechanism, wherein a valve seat is arranged in the valve body, the butterfly plate is in rotary abutting joint with the valve seat to seal the valve body, the valve rod, the butterfly plate and the valve seat are arranged in a double-eccentric sealing structure, an end cover is arranged on the valve body, the end cover and the valve body clamp the valve seat, an inclined sealing inclined surface is arranged on the valve seat, and a sealing cambered surface matched with the sealing inclined surface is arranged on the butterfly plate; the soft sealing butterfly valve is characterized in that the soft sealing butterfly valve is provided with a soft sealing valve seat, a sealing plate, a valve seat and a sealing plate, wherein the sealing plate is fixedly arranged on the soft sealing butterfly valve through an end cover.
Description
Technical Field
The utility model relates to the technical field of butt-clamp butterfly valves, in particular to a soft seal butt-clamp butterfly valve.
Background
The valve is used as a necessary component for pipeline transportation, has wide application in the pipeline transportation industry, and designs a great number of valve types according to requirements, wherein a butterfly valve is one of valves which are widely applied to industrial pipelines such as water supply and drainage, food, chemical industry and the like and used for adjustment and throttling. The working principle is as follows: through rotating the handle, the valve rod is rotated, and then the butterfly plate is driven to rotate, so that the purpose of opening or closing is achieved. The butterfly valve comprises a glume seal and a soft seal, namely the traditional soft seal butt clamp butterfly valve realizes soft seal butt joint by utilizing the cooperation of a butterfly plate and a valve seat which is generally made of rubber materials, and the butterfly valve is used as a sealing element, so that the ageing, the installation and the maintenance are all factors limiting the service life of the butt clamp butterfly valve.
Disclosure of Invention
In view of the prior art, the utility model aims to provide a soft sealing butt-clamping butterfly valve which is convenient to install and maintain and has a better sealing elastic design.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a soft seal butt clamp butterfly valve, includes valve body, butterfly plate, valve rod and drive valve rod pivoted power unit, be provided with the disk seat in the valve body, the butterfly plate rotates the butt disk seat and seals the valve body, just valve rod, butterfly plate and disk seat adopt double eccentric seal structure to set up, be provided with the end cover on the valve body, end cover and valve body centre gripping disk seat set up, just have the sealed inclined plane of slope on the disk seat, be provided with on the butterfly plate with sealed inclined plane assorted sealed cambered surface.
As a further arrangement of the scheme, the valve seat is annular and made of rubber materials.
As a further arrangement of the scheme, the end cover is provided with a sealing convex ring, and the valve seat is provided with a ring groove corresponding to the sealing convex ring.
As a further arrangement of the scheme, the annular groove is internally provided with a U-shaped groove, the U-shaped groove is arranged at one side relatively close to the sealing inclined plane, and an opening of the U-shaped groove is opposite to the inner annular surface of the sealing convex ring.
As the further setting of above-mentioned scheme, the shape of disk seat and end cover, valve body, butterfly plate three are in the cavity phase-match that sealing state constitutes, the disk seat is under the sealed extrusion of butterfly plate, and deformation butt is on butterfly plate, end cover and valve body.
As a further arrangement of the scheme, the butterfly plate is arranged in an eccentric rotation mode driven by the valve rod, and is in interference abutting soft sealing with the valve seat.
As a further arrangement of the scheme, the valve rod and the valve body are also provided with a packing sealing structure, and the packing sealing structure comprises a packing group, a packing gland, a packing pad and a fixing piece.
The beneficial effects are that: the soft sealing butterfly valve is characterized in that the soft sealing butterfly valve is provided with a U-shaped groove structure, the U-shaped groove structure is further arranged on the soft sealing butterfly valve seat, the adaptation of sealing elastic deformation is stronger, the sealing is more reliable, better continuous sealing force is obtained, the double eccentric butterfly plate opening and closing sealing structure is matched, the butterfly plate opening and closing sealing structure is not contacted with the valve seat in the valve opening state, the problem that local rubber is easy to damage due to continuous extrusion deformation caused by long-term pressing of the valve seat rubber is avoided, and the butt clamp butterfly valve has the characteristics of low cost, simple structure, light torque, long service life and the like compared with the prior art.
Drawings
FIG. 1 is a schematic view of a butterfly valve of the present utility model.
FIG. 2 is a schematic view of the inside of a butted butterfly valve according to the present utility model.
FIG. 3 is a schematic view of the mounting structure of the end cap and the valve seat of FIG. 2 according to the present utility model.
Reference numerals: 1. a valve body; 2. a butterfly plate; 3. a valve stem; 4. a power mechanism; 5. a valve seat; 51. a ring groove; 52. a U-shaped groove; 6. sealing inclined planes; 7. an end cap; 71. sealing the convex ring; 8. sealing the cambered surface; 91. a filler group; 92. a packing gland; 93. a filler pad; 94. and a fixing piece.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. In addition, the embodiments of the present utility model and the features in the embodiments may be combined with each other without collision.
The soft sealing butt-clamping butterfly valve comprises a valve body 1, a butterfly plate 2, a valve rod 3 and a power mechanism 4 for driving the valve rod 3 to rotate, wherein a valve seat 5 is arranged in the valve body 1, the butterfly plate 2 rotates to abut against the valve seat 5 to seal the valve body 1, the valve rod 3, the butterfly plate 2 and the valve seat 5 are arranged in a double-eccentric sealing structure, an end cover 7 is arranged on the valve body 1, the end cover 7 and the valve body 1 clamp the valve seat 5, the valve seat 5 is provided with an inclined sealing inclined surface 6, and a sealing cambered surface 8 matched with the sealing inclined surface 6 is arranged on the butterfly plate 2.
As a further arrangement of the above solution, the valve seat 5 is annular and made of rubber material.
As a further arrangement of the above solution, the end cap 7 is provided with a sealing collar 71, and the valve seat 5 is provided with a ring groove 51 corresponding to the sealing collar 71.
As a further arrangement of the above scheme, a U-shaped groove 52 is also provided in the ring groove 51, the U-shaped groove 52 is located at a side relatively close to the sealing inclined surface 6, and its opening is opposite to the inner ring surface of the sealing convex ring 71.
As a further arrangement of the scheme, the shape of the valve seat 5 is matched with the cavity formed by the end cover 7, the valve body 1 and the butterfly plate 2 in a sealing state, and the valve seat 5 is in deformation abutting connection with the butterfly plate 2, the end cover 7 and the valve body 1 under the sealing extrusion of the butterfly plate 2.
As a further arrangement of the scheme, the butterfly plate 2 is arranged in an eccentric rotation mode driven by the valve rod 3, and the butterfly plate 2 is in interference abutting soft sealing with the valve seat 5.
As a further arrangement of the above solution, the valve rod 3 and the valve body 1 are further provided with a packing seal structure, which includes a packing group 91, a packing gland 92, a packing pad 93 and a fixing member 94.
The butterfly valve of this embodiment includes the valve block 1 as shown in fig. 1-3, the valve rod 3 that runs through and sets up in the valve block 1 and fix the butterfly plate 2 on valve rod 3 through the cylindrical pin, the upper end that the valve rod 3 runs through the valve block 1 connects and sets up on the power unit 4, drive the valve rod 3, butterfly plate 2 to rotate with respect to valve block 1 double eccentric seal through the power unit 4, switch the open and shut state of the valve, on the basis of above-mentioned, this embodiment has set up the packing structure in the cooperation department of valve rod 3 and valve block 1, including packing 93, packing group 91 and packing gland 92, the packing gland 92 as shown in the figure also has fixed orifices, install the fixture 94 on the fixed orifice, namely have locking bolt post that sets up, thus fixedly connect the packing structure with valve block 1 to install;
in addition, a valve seat 5 is further arranged between the butterfly plate 2 and the valve body 1, the valve seat 5 is a soft sealing ring structure made of rubber material, and can be made of nitrile rubber and other materials, the soft sealing ring valve seat is provided with a ring groove 51 structure, the end cover 7 which can be directly detached from the side surface of the valve body 1 through bolts is fixed with the clamping of the valve body 1, and the end cover 7 corresponding to the ring groove 51 of the valve seat 5 is provided with a sealing convex ring 71 structure, and the ring groove 51 of the valve seat 5 which is propped against the inner side surface of the sealing convex ring 71 is also provided with a U-shaped groove 52, compared with the design of the U-shaped groove 52 of the prior art, the elastic reduction of the valve seat 5 caused by lifting the valve seat 5 material based on the requirements of ageing resistance and the like can be effectively avoided, the elasticity of the valve seat 5 can be effectively lifted through the design of the U-shaped groove 52, the sealing performance of the butterfly valve is not damaged, the sealing elasticity of the butterfly valve is effectively improved and the service life is prolonged by the design of a simple notch groove, namely the U-shaped groove 52, and further, the end cover 7, the valve body 1 and the butterfly plate 2 of the embodiment are clamped to form a cavity almost identical to the valve seat 5, the sealing cambered surface 8 of the butterfly plate 2 and the sealing inclined surface 6 of the valve seat 5 generate abutting connection under the double eccentric sealing rotation of the butterfly plate 2, the matching of the butterfly plate 2 and the butterfly plate and the valve inclined surface 6 belongs to interference, namely, in a valve closing state, the abutting connection of the butterfly plate 2 and the butterfly plate can cause the valve seat 5 to generate further extrusion deformation change in the cavity formed by the three, so that the sealing is more reliable, the continuous sealing force is obviously improved, the structural design is durable compared with a butterfly valve with a center line lining, the butterfly valve is simpler than multi-level sealing, and has good practical production value, and the structure setting of double eccentric butterfly plate for butterfly plate 2 does not influence disk seat 5 in the valve state of opening, and disk seat 5 can obtain deformation relaxation in the valve state of opening, avoids lasting extrusion deformation and leads to the damage.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (7)
1. The utility model provides a soft seal butt clamp butterfly valve, includes valve body (1), butterfly plate (2), valve rod (3) and drive valve rod (3) pivoted power unit (4), its characterized in that: be provided with disk seat (5) in valve body (1), butterfly plate (2) rotate butt disk seat (5) and seal valve body (1), just valve rod (3), butterfly plate (2) and disk seat (5) adopt double eccentric seal structure to set up, be provided with end cover (7) on valve body (1), end cover (7) and valve body (1) centre gripping disk seat (5) set up, just have sealed inclined plane (6) of slope on disk seat (5), be provided with on butterfly plate (2) with sealed inclined plane (6) assorted sealed cambered surface (8).
2. A soft seal butterfly valve according to claim 1, wherein: the valve seat (5) is annular and made of rubber materials.
3. A soft seal butterfly valve according to claim 1 or 2, characterized in that: the end cover (7) is provided with a sealing convex ring (71), and the valve seat (5) is provided with a ring groove (51) corresponding to the sealing convex ring (71).
4. A soft seal butterfly valve according to claim 3, wherein: the ring groove (51) is internally provided with a U-shaped groove (52), the U-shaped groove (52) is arranged at one side relatively close to the sealing inclined plane (6), and an opening of the U-shaped groove is opposite to the inner annular surface of the sealing convex ring (71).
5. The soft seal butterfly valve of claim 4, wherein: the shape of the valve seat (5) is matched with a cavity formed by the end cover (7), the valve body (1) and the butterfly plate (2) in a sealing state, and the valve seat (5) is deformed and abutted on the butterfly plate (2), the end cover (7) and the valve body (1) under the sealing extrusion of the butterfly plate (2).
6. A soft seal butterfly valve according to claim 3, wherein: the butterfly plate (2) is arranged in an eccentric rotation mode driven by the valve rod (3), and the butterfly plate (2) is in interference abutting soft sealing with the valve seat (5).
7. A soft seal butterfly valve according to claim 1, wherein: and the valve rod (3) and the valve body (1) are also provided with a packing sealing structure, and the packing sealing structure comprises a packing group (91), a packing gland (92), a packing pad (93) and a fixing piece (94).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321549380.5U CN219911784U (en) | 2023-06-17 | 2023-06-17 | Soft seal butt-clamping butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321549380.5U CN219911784U (en) | 2023-06-17 | 2023-06-17 | Soft seal butt-clamping butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219911784U true CN219911784U (en) | 2023-10-27 |
Family
ID=88422755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321549380.5U Active CN219911784U (en) | 2023-06-17 | 2023-06-17 | Soft seal butt-clamping butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219911784U (en) |
-
2023
- 2023-06-17 CN CN202321549380.5U patent/CN219911784U/en active Active
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