CN217234733U - Sealing device for joint of nodular cast iron pipe - Google Patents
Sealing device for joint of nodular cast iron pipe Download PDFInfo
- Publication number
- CN217234733U CN217234733U CN202220121203.6U CN202220121203U CN217234733U CN 217234733 U CN217234733 U CN 217234733U CN 202220121203 U CN202220121203 U CN 202220121203U CN 217234733 U CN217234733 U CN 217234733U
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- cast iron
- nodular cast
- iron pipe
- seat
- 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
Abstract
The utility model relates to a nodular cast iron pipe connector mouth sealing device, including set up on the mouth of pipe inner wall of nodular cast iron pipe and between the connecting pipe outer wall and from inside to outside soft sealing ring and the hard seal ring seat of arranging, the hard seal ring seat is including fixing the connecting seat on the outer terminal surface of nodular cast iron pipe and the annular seal seat of grafting in the nodular cast iron pipe, be equipped with sealing glue layer between soft sealing ring, the annular seal seat. The utility model discloses a three-layer seal when soft sealing ring, hard seal ring holder and sealing glue layer realize that nodular cast iron union coupling is sealed, sealed effect is better, has reduced the probability of liquid seepage.
Description
Technical Field
The utility model relates to a technical field that the mouth of pipe is connected and is sealed especially relates to a nodular cast iron pipe connector mouth sealing device.
Background
The nodular cast iron pipe is a pipe which is formed by adding a nodulizer into cast molten iron and centrifugally casting the molten iron at a high speed by a centrifugal nodular cast iron machine, is called a nodular pipe, a nodular cast iron pipe and the like for short, is mainly used for conveying tap water and is an ideal selected material for a tap water pipeline.
When the ductile cast iron pipe is connected with other pipes, a sealing rubber ring is mostly adopted for sealing, the sealing effect is not ideal, and the ductile cast iron pipe is easy to lose efficacy.
Disclosure of Invention
The utility model aims at solving the defects of the prior art and providing a sealing device for a nodular cast iron pipe joint.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:
the sealing device for the joint of the nodular cast iron pipe comprises a soft sealing ring and a hard sealing ring seat, wherein the soft sealing ring and the hard sealing ring seat are arranged between the inner wall of the pipe orifice of the nodular cast iron pipe and the outer wall of a connecting pipe and are arranged from inside to outside, the hard sealing ring seat comprises a connecting seat fixed on the outer end face of the nodular cast iron pipe and an annular sealing seat inserted in the nodular cast iron pipe, and a sealing glue layer is arranged between the soft sealing ring and the annular sealing seat.
One side of the soft sealing ring facing the annular sealing seat is provided with an extension inserting ring, one side of the annular sealing seat facing the soft sealing ring is provided with an annular slot, and the extension inserting ring is inserted into the annular slot.
An inner clamping groove is formed in the inner wall, in contact with the outer wall of the connecting pipe, of the soft sealing ring, a first elliptical sealing ring is arranged in the inner clamping groove, an outer clamping groove is formed in the outer wall, in contact with the inner wall of the nodular cast iron pipe, of the soft sealing ring, and a second elliptical sealing ring is arranged in the outer clamping groove.
Two filling holes penetrate through the hard sealing ring seat and are plugged outside the filling holes, and the two filling holes correspond to the inner side cavity and the outer side cavity of the extension inserting ring respectively.
The connecting seat is fixed on the outer end face of the nodular cast iron pipe through a bolt.
And one side of the soft sealing ring, which is back to the hard sealing ring seat, is provided with an arc-shaped groove or a V-shaped groove.
The utility model has the advantages that: the utility model discloses a three-layer seal when soft sealing ring, hard seal ring holder and sealing glue layer realize that nodular cast iron pipe connects, sealed effect is better, has reduced the probability of liquid seepage.
Drawings
FIG. 1 is a schematic structural diagram of one form of the present invention;
FIG. 2 is an enlarged view of A in FIG. 1;
FIG. 3 is a schematic view of another embodiment of the present invention;
FIG. 4 is an enlarged view of B in FIG. 3;
in the figure: 1-nodular cast iron pipes; 2-connecting pipe; 3-soft sealing ring; 4-hard sealing ring seat; 5-sealing the adhesive layer; 6-extension insert ring; 7-a first elliptical sealing ring; 8-a second elliptical sealing ring; 9-an injection hole; 10-blocking; 11-an arc-shaped groove; 12-V-shaped grooves;
4.1-connecting seat; 4.2-annular seal seat;
the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
as shown in fig. 1 to 4, a sealing device for a nodular cast iron pipe joint comprises a soft sealing ring 3 and a hard sealing ring seat 4 which are arranged between the inner wall of a pipe orifice of a nodular cast iron pipe 1 and the outer wall of a connecting pipe 2 from inside to outside, wherein the hard sealing ring seat 4 comprises a connecting seat 4.1 fixed on the outer end surface of the nodular cast iron pipe 1 and an annular sealing seat 4.2 inserted in the nodular cast iron pipe 1, and a sealing adhesive layer 5 is arranged between the soft sealing ring 3 and the annular sealing seat 4.2.
The soft sealing ring 3 can deform when being extruded, and the soft sealing ring 3 can be made of rubber.
The hard sealing ring seat 4 can be made of stainless steel.
One side of the soft sealing ring 3 facing the annular sealing seat 4.2 is provided with an extension inserting ring 6, one side of the annular sealing seat 4.2 facing the soft sealing ring 3 is provided with an annular slot, and the extension inserting ring 6 is inserted into the annular slot.
An inner clamping groove is formed in the inner wall, in contact with the outer wall of the connecting pipe 2, of the soft sealing ring 3, a first elliptical sealing ring 7 is arranged in the inner clamping groove, and an outer clamping groove is formed in the outer wall, in contact with the inner wall of the nodular cast iron pipe 1, of the soft sealing ring 3, and a second elliptical sealing ring 8 is arranged in the outer clamping groove.
Two filling holes 9 penetrate through the hard sealing ring seat 4, a sealing plug 10 is plugged outside the filling holes 9, and the two filling holes 9 correspond to the inner cavity and the outer cavity of the extension inserting ring 6 respectively.
The connecting seat 4.1 is fixed on the outer end surface of the nodular cast iron pipe 1 through a bolt.
An arc-shaped groove 11 is formed in one side, back to the hard sealing ring seat 4, of the soft sealing ring 3 as shown in fig. 1 and 2, or a V-shaped groove 12 is formed in one side, back to the hard sealing ring seat 4, of the soft sealing ring 3 as shown in fig. 3 and 4.
The utility model discloses a three-layer seal when soft sealing ring 3, hard sealing ring seat 4 and sealing glue layer 5 realize that nodular cast-iron pipe 1 connects, sealed effect is better, has reduced the probability of liquid seepage. The soft sealing ring 3 is connected with the annular sealing seat 4.2 through the extension inserting ring 6, so that dislocation is not easy to occur, and a certain jacking effect is achieved. When the sealant layer 5 is formed, the sealant is injected into the inside through the injection hole 9 to achieve sealing. The two sides of the soft sealing ring 3 are also provided with a first elliptical sealing ring 7 and a second elliptical sealing ring 8 which can deform and seal when being extruded. The arc-shaped groove 11 and the V-shaped groove 12 can be pressed under the action of pushing liquid, so that the sealing is tighter.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements made by the method concept and technical solution of the present invention or directly applied to other occasions without improvement are all within the protection scope of the present invention.
Claims (7)
1. The nodular cast iron pipe joint sealing device is characterized by comprising a soft sealing ring (3) and a hard sealing ring seat (4), wherein the soft sealing ring (3) and the hard sealing ring seat (4) are arranged between the inner wall of a pipe orifice of a nodular cast iron pipe (1) and the outer wall of a connecting pipe (2) and are arranged from inside to outside, the hard sealing ring seat (4) comprises a connecting seat (4.1) fixed on the outer end face of the nodular cast iron pipe (1) and an annular sealing seat (4.2) inserted in the nodular cast iron pipe (1), and a sealing glue layer (5) is arranged between the soft sealing ring (3) and the annular sealing seat (4.2).
2. The nodular cast iron pipe joint sealing device according to claim 1 wherein the side of the soft sealing ring (3) facing the annular sealing seat (4.2) is provided with an extension insert ring (6), the side of the annular sealing seat (4.2) facing the soft sealing ring (3) is provided with an annular slot, and the extension insert ring (6) is inserted into the annular slot.
3. The nodular cast iron pipe joint sealing device according to claim 2 wherein the inner wall of the soft sealing ring (3) contacting with the outer wall of the connecting pipe (2) is provided with an inner clamping groove and a first elliptical sealing ring (7) is arranged in the inner clamping groove, the outer wall of the soft sealing ring (3) contacting with the inner wall of the nodular cast iron pipe (1) is provided with an outer clamping groove and a second elliptical sealing ring (8) is arranged in the outer clamping groove.
4. A ductile iron pipe joint sealing device according to claim 3, wherein two filling holes (9) are penetrated through the hard sealing ring seat (4) and a sealing plug (10) is plugged outside the filling holes (9), and the two filling holes (9) correspond to the inner cavity and the outer cavity of the extension insert ring (6) respectively.
5. The nodular cast iron pipe joint sealing arrangement according to claim 4, wherein the joint socket (4.1) is fixed on the outer end surface of the nodular cast iron pipe (1) by bolts.
6. A nodular cast iron pipe joint sealing arrangement according to any of the claims 1-5, characterised in that the side of the soft sealing ring (3) facing away from the hard sealing ring seat (4) is provided with an arc-shaped groove (11).
7. A nodular cast iron pipe joint sealing arrangement according to any of the claims 1-5, characterised in that the side of the soft sealing ring (3) facing away from the hard sealing ring seat (4) is provided with a V-shaped groove (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220121203.6U CN217234733U (en) | 2022-01-18 | 2022-01-18 | Sealing device for joint of nodular cast iron pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220121203.6U CN217234733U (en) | 2022-01-18 | 2022-01-18 | Sealing device for joint of nodular cast iron pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217234733U true CN217234733U (en) | 2022-08-19 |
Family
ID=82830661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220121203.6U Active CN217234733U (en) | 2022-01-18 | 2022-01-18 | Sealing device for joint of nodular cast iron pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217234733U (en) |
-
2022
- 2022-01-18 CN CN202220121203.6U patent/CN217234733U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101755161B (en) | Coupling and method for joining | |
| CN209762491U (en) | Drainage pipeline connecting structure | |
| CN105937677A (en) | Totally-closed maintenance-free threaded fitting | |
| CN202001749U (en) | Anti-corrosive buckle press joint for composite pressure pipe connection and pipeline connection structure | |
| CN217234733U (en) | Sealing device for joint of nodular cast iron pipe | |
| CN216158522U (en) | Pipeline leakage-proof structure | |
| CN201925632U (en) | Pressing type combined pressure pipe joint and pipe connecting structure | |
| CN204756206U (en) | PE pipe with leak protection function | |
| CN202914915U (en) | Composite crimping pipeline connector and pipeline system comprising same | |
| CN205316683U (en) | Prevent joint Assembly of company and water heater of electric wall | |
| CN215334948U (en) | Connecting structure for curved pipe jacking pipe joint | |
| CN214116913U (en) | Assembled inspection shaft | |
| CN214500371U (en) | Self-anchoring interface fixing structure of nodular cast iron pipe | |
| CN107747661A (en) | Spigot-and-socket joint for running water pipe seepage is not cut off the water fast plugging device | |
| CN219734554U (en) | Interface sealing structure of T-shaped nodular cast iron pipe | |
| CN219300139U (en) | Double socket structure of composite pipe and composite pipe | |
| CN205745746U (en) | Totally-enclosed maintenance-free threaded fitting | |
| CN213420184U (en) | Steel socket concrete pipeline with leakage-proof structure | |
| CN212056329U (en) | Reducing connection structure for half joint | |
| CN217653454U (en) | PP (polypropylene) butt flange with good sealing effect | |
| CN214405101U (en) | Pipeline branch connection structure | |
| CN217927118U (en) | Leak protection oil bearing seal structure | |
| CN212745034U (en) | Caisson water injection hole sealing device | |
| CN217977897U (en) | Double-rubber-ring joint steel socket reinforced concrete pipe for building construction | |
| CN220727479U (en) | Epoxy resin foaming sealing structure of air source pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |