CN218207855U - Double-seal corrosion-resistant fluorine-lined butterfly valve - Google Patents
Double-seal corrosion-resistant fluorine-lined butterfly valve Download PDFInfo
- Publication number
- CN218207855U CN218207855U CN202222838976.9U CN202222838976U CN218207855U CN 218207855 U CN218207855 U CN 218207855U CN 202222838976 U CN202222838976 U CN 202222838976U CN 218207855 U CN218207855 U CN 218207855U
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing member
- ring
- seal
- valve rod
- 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 corrosion-resistant lining fluorine butterfly valve of double containment, its disk seat, the seam crossing of butterfly plate and valve rod still is equipped with double-seal structure, be equipped with retaining ring and first clamping ring on the valve rod, a spring has been put to the cover on the valve rod between retaining ring and the first clamping ring, double-seal structure includes first sealing member and second sealing member, first sealing member and second sealing member are arc slice sealing member, be equipped with two mounting grooves on the disk seat, two terminal surfaces of first sealing member and second sealing member respectively with the valve rod, butterfly plate looks butt, all the other terminal surface cards of first sealing member and second sealing member are gone into in the mounting groove on the disk seat, first clamping ring passes through the upper end looks butt of second clamping ring and first sealing member and second sealing member, still the cover has been put the sealing ring on the valve rod between first clamping ring and the second clamping ring, the utility model discloses a sealed more reliable.
Description
Technical Field
The utility model relates to a dual-seal corrosion-resistant fluorine-lined butterfly valve.
Background
The patent with the publication number of CN216112231U discloses a double-seal butterfly valve, which seals a butterfly plate through a double-seal structure of a U-shaped ring and an elastic ring; the double seal of this structure only can seal the junction of butterfly plate and valve chamber, and because the junction of valve rod and valve body is sealed comparatively lacks, when the butterfly valve was opened and close, the seam crossing of valve rod, valve body and case still easily produced the seepage.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a double-seal corrosion-resistant fluorine-lined butterfly valve with more reliable sealing.
The technical scheme of the utility model is that: the utility model provides a dual-seal corrosion-resistant lining fluorine butterfly valve, includes valve body, disk seat, butterfly plate and valve rod, the cladding has the fluoroplastics layer on disk seat, butterfly plate and the valve rod, and the seam crossing of disk seat, butterfly plate and valve rod still is equipped with dual-seal structure.
Be equipped with retaining ring and first clamping ring on the valve rod, a spring has been put to the cover on the valve rod between retaining ring and the first clamping ring, dual seal structure includes first sealing member and second sealing member, first sealing member and second sealing member are arc sheet sealing member, be equipped with respectively with the corresponding two mounting grooves of first sealing member and second sealing member on the disk seat, two terminal surfaces of first sealing member and second sealing member respectively with valve rod, butterfly plate looks butt, all the other terminal surface cards of first sealing member and second sealing member are gone into in the mounting groove on the disk seat, the upper end looks butt of first clamping ring through second clamping ring and first sealing member and second sealing member, the sealing ring has still been put to the cover on the valve rod between first clamping ring and the second clamping ring.
Furthermore, a gland is further arranged on the valve rod and is abutted against the check ring through a sealing ring.
Further, the one end that first sealing member and second sealing member are close to the valve rod has a arch, protruding one side towards the valve rod is the arcwall face to the shape of laminating valve rod, bellied opposite side is the conical surface, the inner ring of second clamping ring is loudspeaker form, the second clamping ring is detained and is arranged in on the frustum of the protruding constitution of first sealing member and second sealing member.
Furthermore, the bottom surface of first clamping ring is the slope, the section of sealing ring is trapezoidal, the sealing ring card is gone into between first clamping ring bottom and second clamping ring top.
Furthermore, a copper sleeve is arranged between the valve rod and the first pressing ring.
Further, the inner ring of the sealing ring is positioned between the copper sleeve and the fluoroplastic layer of the valve rod.
Further, the valve rod comprises an upper valve rod and a lower valve rod, the butterfly plate comprises a left butterfly plate and a right butterfly plate, and the first sealing element and the second sealing element are arranged corresponding to the left butterfly plate and the right butterfly plate respectively.
Furthermore, the end parts of the upper valve rod and the lower valve rod, and the left butterfly plate and the right butterfly plate are respectively coated with a fluoroplastic layer.
Furthermore, the valve body is formed by connecting an upper valve body and a lower valve body.
Furthermore, a rubber pad is arranged between the valve seat and the valve body.
The utility model has the advantages that: in the utility model, the spring presses the double-sealing structure through the first pressing ring and the second pressing ring, because the two end faces of the first sealing element and the second sealing element are clamped in the mounting groove of the valve seat, the first sealing element and the second sealing element are abutted against the joint of the butterfly plate, the valve rod and the valve seat to seal the two end faces under the pressing of the second pressing ring, and the double-sealing structure has better sealing effect; and because the first sealing element and the second sealing element are of split structures, the rotation of the butterfly plate cannot be influenced by the split structures.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a cross-sectional view of the present invention;
fig. 3 is an enlarged view of a portion a in fig. 1.
In the figure: the valve comprises a valve body 1, a valve seat 2, a butterfly plate 3, a valve rod 4, a fluoroplastic layer 5, a retainer ring 6, a first pressing ring 7, a spring 8, a first sealing element 9, a second sealing element 10, a mounting groove 11, a second pressing ring 12, a sealing ring 13, a gland 14, a sealing ring 15, a protrusion 16, a copper sleeve 17 and a rubber pad 18.
Detailed Description
The technical solution of the present invention is further specifically described below by way of embodiments and with reference to the accompanying drawings.
Referring to fig. 1-3, a double-seal corrosion-resistant fluorine lining butterfly valve comprises a valve body 1, a valve seat 2, a butterfly plate 3 and a valve rod 4, wherein the valve seat 2, the butterfly plate 3 and the valve rod 4 are coated with a fluoroplastic layer, and a double-seal structure is further arranged at the joint of the valve seat 2, the butterfly plate 3 and the valve rod 4.
Be equipped with retaining ring 6 and first clamping ring 7 on the valve rod 4, a spring 8 has been put to the cover on the valve rod 4 between retaining ring 6 and the first clamping ring 7, double-seal structure includes first sealing member 9 and second sealing member 10, first sealing member 9 and second sealing member 10 are arc slice sealing member, be equipped with respectively on the disk seat 2 with first sealing member 9 and the corresponding two mounting grooves 11 of second sealing member 10, two terminal surfaces of first sealing member 9 and second sealing member 10 respectively with valve rod 4, 3 looks butt of butterfly plate, all the other terminal surfaces card of first sealing member 9 and second sealing member 10 are gone into in the mounting groove 11 on disk seat 2, first clamping ring 7 passes through the upper end looks butt of second clamping ring 12 with first sealing member 9 and second sealing member 10, sealing ring 13 has still been put to the cover on the valve rod 4 between first clamping ring 7 and the second clamping ring 12.
In the structure, the spring 8 presses the double-sealing structure through the first pressing ring 7 and the second pressing ring 12, because the two end faces of the first sealing element 9 and the second sealing element 10 are clamped in the mounting groove 11 of the valve seat 2, the first sealing element 9 and the second sealing element 10 are abutted against the joint of the butterfly plate 3, the valve rod 4 and the valve seat 2 to seal the butterfly plate, the valve rod 4 and the valve seat 2 under the pressing of the second pressing ring 12, and the double-sealing structure has a better sealing effect; the first sealing element 9 and the second sealing element 10 are of split structures, so that the rotation of the butterfly plate 3 cannot be influenced by the split structures; and the sealing ring 13 arranged on the first pressing ring 7 and the second pressing ring 12 plays a role of re-sealing, so that the medium is prevented from leaking from the joint of the first pressing ring 7 and the second pressing ring 12.
In another embodiment, as shown in fig. 1, a gland 14 is further provided on the valve rod 4, and the gland 14 abuts against the retaining ring 6 through a sealing ring 15 to seal the end of the valve rod 4.
In another embodiment, as shown in fig. 3, a protrusion 16 is provided at one end of each of the first sealing element 9 and the second sealing element 10 close to the valve rod 4, one side of the protrusion 16 facing the valve rod 4 is an arc-shaped surface to fit the shape of the valve rod 4, the other side of the protrusion 16 is a conical surface, the inner ring of the second pressing ring 12 is in a trumpet shape, and the second pressing ring 12 is buckled on a frustum formed by the protrusions 16 of the first sealing element 9 and the second sealing element 10 to perform a further resealing function.
In another embodiment, as shown in fig. 3, the bottom surface of the first pressing ring 7 is a slope, the cross section of the sealing ring 13 is trapezoidal, the sealing ring 13 is clamped between the bottom end of the first pressing ring 7 and the top end of the second pressing ring 12, and due to the action of the spring 8, the first pressing ring 7, the sealing ring 13 and the second pressing ring 12 form a double-sealing function.
In another embodiment, as shown in fig. 3, a copper sleeve 17 is further disposed between the valve rod 4 and the first compression ring 7, and the copper sleeve 17 performs self-lubricating and sealing functions.
In another embodiment, as shown in fig. 3, the inner ring of the sealing ring 13 is located between the copper sleeve 17 and the fluoroplastic layer 5 of the valve rod 4, and when the first pressing ring 7 and the second pressing ring 12 are displaced up and down by a small amount due to the rotation of the butterfly plate 3, the sealing ring 13 is not displaced therewith, so as to ensure the sealing effect.
In another embodiment, as shown in fig. 1 and 2, the valve rod 4 is composed of an upper valve rod and a lower valve rod, the butterfly plate 3 is composed of a left butterfly plate and a right butterfly plate, and the first sealing element 9 and the second sealing element 10 are respectively arranged corresponding to the left butterfly plate and the right butterfly plate.
In another embodiment, as shown in fig. 1 and 2, the ends of the upper valve stem 4 and the lower valve stem 4 and the left butterfly plate 3 and the right butterfly plate 3 are respectively coated with fluoroplastic layers to ensure the corrosion resistance.
In another embodiment, as shown in fig. 2, the valve body 1 is formed by connecting an upper valve body and a lower valve body, so as to facilitate the assembly of the whole butterfly valve.
In another embodiment, as shown in fig. 1, a rubber pad 18 is further disposed between the valve seat 2 and the valve body 1 to improve the stability and impact resistance of the valve seat 2.
Claims (10)
1. A double-seal corrosion-resistant fluorine-lined butterfly valve comprises a valve body (1), a valve seat (2), a butterfly plate (3) and a valve rod (4), wherein the valve seat (2), the butterfly plate (3) and the valve rod (4) are coated with fluoroplastic layers, and the double-seal corrosion-resistant fluorine-lined butterfly valve is characterized in that a double-seal structure is further arranged at the joint of the valve seat (2), the butterfly plate (3) and the valve rod (4);
be equipped with retaining ring (6) and first clamping ring (7) on valve rod (4), spring (8) have been put to the cover on valve rod (4) between retaining ring (6) and first clamping ring (7), double-seal structure includes first sealing member (9) and second sealing member (10), first sealing member (9) and second sealing member (10) are arc sheet sealing member, be equipped with on disk seat (2) respectively with first sealing member (9) and second sealing member (10) corresponding two mounting grooves (11), two terminal surfaces of first sealing member (9) and second sealing member (10) respectively with valve rod (4), butterfly plate (3) looks butt, all the other terminal surfaces card of first sealing member (9) and second sealing member (10) are gone into in mounting groove (11) on disk seat (2), the upper end clamping ring looks butt of first clamping ring (7) through second clamping ring (12) and first sealing member (9) and second sealing member (10), the upper end clamping ring looks butt of valve rod (4) between first clamping ring (7) and second clamping ring (12) has still put on valve rod (13).
2. The dual-seal corrosion-resistant fluorine-lined butterfly valve according to claim 1, wherein the valve rod (4) is further provided with a gland (14), and the gland (14) is abutted with the retainer ring (6) through a seal ring (15).
3. The dual-seal corrosion-resistant fluorine-lined butterfly valve according to claim 2, wherein the first seal member (9) and the second seal member (10) have a protrusion (16) at one end close to the valve rod (4), one side of the protrusion (16) facing the valve rod (4) is an arc-shaped surface to fit the shape of the valve rod (4), the other side of the protrusion (16) is a conical surface, the inner ring of the second pressing ring (12) is horn-shaped, and the second pressing ring (12) is buckled on a frustum formed by the protrusion (16) of the first seal member (9) and the second seal member (10).
4. The dual-seal corrosion-resistant fluorine-lined butterfly valve as claimed in claim 3, wherein the bottom surface of the first compression ring (7) is a slope, the section of the sealing ring (13) is trapezoidal, and the sealing ring (13) is clamped between the bottom end of the first compression ring (7) and the top end of the second compression ring (12).
5. The dual-seal corrosion-resistant fluorine-lined butterfly valve according to claim 4, wherein a copper sleeve (17) is further provided between the valve rod (4) and the first compression ring (7).
6. The dual-seal corrosion-resistant fluorine-lined butterfly valve according to claim 5, wherein the inner ring of the seal ring (13) is located between the copper sleeve (17) and the fluoroplastic layer (5) of the valve stem (4).
7. The dual seal corrosion resistant fluorine lined butterfly valve according to claim 6, wherein said valve stem (4) is comprised of an upper valve stem and a lower valve stem, said butterfly plate (3) and left and right butterfly plates, said first seal (9) and second seal (10) being disposed corresponding to the left and right butterfly plates, respectively.
8. The dual-seal corrosion-resistant fluorine-lined butterfly valve according to claim 7, wherein the ends of the upper valve stem (4) and the lower valve stem (4) and the left butterfly plate (3) and the right butterfly plate (3) are respectively coated with fluoroplastic layers.
9. The dual-seal corrosion-resistant fluorine-lined butterfly valve according to claim 8, wherein the valve body (1) is formed by connecting an upper valve body and a lower valve body.
10. The dual-seal corrosion-resistant fluorine-lined butterfly valve according to claim 9, wherein a rubber gasket (18) is further provided between the valve seat (2) and the valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222838976.9U CN218207855U (en) | 2022-10-27 | 2022-10-27 | Double-seal corrosion-resistant fluorine-lined butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222838976.9U CN218207855U (en) | 2022-10-27 | 2022-10-27 | Double-seal corrosion-resistant fluorine-lined butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218207855U true CN218207855U (en) | 2023-01-03 |
Family
ID=84642706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222838976.9U Active CN218207855U (en) | 2022-10-27 | 2022-10-27 | Double-seal corrosion-resistant fluorine-lined butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218207855U (en) |
-
2022
- 2022-10-27 CN CN202222838976.9U patent/CN218207855U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3951484B2 (en) | Fuel cell | |
| KR101904521B1 (en) | Plate-integrated gasket | |
| CN208687000U (en) | A kind of two way seal floating hard seal ball valve spring is against pressure and structure | |
| US9976680B2 (en) | Seal element for isolation gasket | |
| CN218207855U (en) | Double-seal corrosion-resistant fluorine-lined butterfly valve | |
| GB2275974A (en) | Cylinder head gaskets | |
| CN215333166U (en) | Cylinder head gasket jar mouth seal structure | |
| CN211202879U (en) | Permanent elastic compensation rubber combined sealing ring | |
| CN209340496U (en) | Self-sealing gasket | |
| CN201016401Y (en) | Completely double-sealed master rams for single flash-board type elastic seat gate-closing valve | |
| CN201751558U (en) | Sealing structure of case closing face of crankcase | |
| CN207213154U (en) | One kind stacking gasket seal | |
| CN2451831Y (en) | Metal sealing buttetfly valve | |
| CN216478905U (en) | Special-shaped sealing gasket for gas pipeline flowmeter | |
| CN213393655U (en) | Novel soft and hard sealing ball valve | |
| CN217866118U (en) | High-sealing manhole cover applied to storage tank | |
| CN214534668U (en) | Vacuum one-way valve | |
| CN219606164U (en) | Valve cover double-sealing structure | |
| CN217482124U (en) | Pressure seal ring | |
| CN213598576U (en) | Sealing ring with good rebound resilience | |
| CN219655245U (en) | Dual positioning gasket | |
| CN217108295U (en) | Ball valve | |
| CN208519048U (en) | A kind of Novel combined seal gasket | |
| CN218992334U (en) | Double-seal soft metal pad | |
| CN216279366U (en) | High-elasticity fatigue-resistant rubber sealing ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |