CN112032422B - Water-swelling sealing pipe fitting - Google Patents
Water-swelling sealing pipe fitting Download PDFInfo
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- CN112032422B CN112032422B CN202010890889.0A CN202010890889A CN112032422B CN 112032422 B CN112032422 B CN 112032422B CN 202010890889 A CN202010890889 A CN 202010890889A CN 112032422 B CN112032422 B CN 112032422B
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- Prior art keywords
- water
- pipe fitting
- ring
- paper ring
- main body
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/102—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention belongs to the field of building water supply pipelines, and particularly relates to a pipe fitting mechanically connected with a pipeline. The water-swelling sealed pipe fitting comprises a pipe fitting main body provided with an inner supporting end and a clamping ring which is matched with the inner supporting end to fasten a pipe; the inner support end is provided with an annular groove, and a water-absorbing paper ring which automatically expands and seals when meeting water is arranged in the annular groove. According to the pipe fitting, the water-absorbing paper ring is added in the joint, so that the water-absorbing paper ring can automatically absorb water and expand, fill a water leakage channel and block or solve the leakage problem, an active sealing defense line is added for the pipe fitting, the pipe fitting product is safer and more reliable, manual maintenance is reduced, the product structure is novel, and the market popularization value is realized.
Description
Technical Field
The invention belongs to the field of building water supply pipelines, and particularly relates to a pipe fitting mechanically connected with a pipeline.
Background
Building water supply pipe has more connected mode, adopts the hot melt to connect like PPR pipe etc. and the red copper pipe adopts the welding, and flexible tube such as plastic-aluminum pipe, polyethylene adopt mechanical connection mode at most. Common mechanical connection modes of the existing pipelines include clamping sleeve connection, clamping and pressing connection, sliding and tight connection and the like, the connecting pipe fittings are generally sealed by adopting sealing rings or self material characteristics, and the pipe fittings or pipe structures deform to realize fixation.
In the connection construction of the pipe fitting and the pipe, the hidden danger of water leakage exists due to irregular operation or other problems; or the sealing ring is aged, drawn, the pressure of the pipeline and the like, and the leakage problem is often caused. The hidden danger or leakage problem of the pipeline needs manual maintenance, such as replacing a connecting part, wrenching a nut and the like, so as to avoid further loss.
The mechanical connecting pipe fitting cannot relieve or solve the leakage hidden trouble, and similarly cannot repair the flat tire like automatic tire repair liquid. In addition, the pipeline field condition is various, and the maintenance needs to match the material, and the process is consuming time and energy, and the maintenance cost is high.
Disclosure of Invention
Aiming at the existing problems, the invention provides a novel sealing scheme for the mechanical connecting pipe fitting, wherein a water expansion ring is added in the joint, when the pipe fitting is connected and leaked, the pipe fitting can be actively changed, the leakage problem is blocked or solved, the manual maintenance is reduced, and the leakage loss is reduced or eliminated.
In order to achieve the purpose, the invention adopts the following technical scheme:
the water-swelling sealed pipe fitting comprises a pipe fitting main body provided with an inner supporting end and a clamping ring which is matched with the inner supporting end to fasten a pipe; the inner support end is provided with an annular groove, and a water-absorbing paper ring which automatically expands and seals when meeting water is arranged in the annular groove.
The scheme of the invention can also be as follows:
the water absorption paper ring adopts a strip-shaped paper strip structure and is wound and adhered on the annular groove.
The water absorbing paper ring with the strip-shaped paper strip structure is provided with oblique notches at two ends, and is wound and bonded to form a circular ring structure with equal thickness.
The water absorption paper ring is of an integrally formed circular ring structure and is free of connecting notches.
The inner support end is provided with one or more annular grooves provided with water absorbing paper rings.
The absorbent paper ring 5 is composed of more than two absorbent paper ring units.
The water absorption paper ring has a ring laminated structure with more than two layers of paper, and the number of the layers is an integer, so that an annular structure with equal thickness is formed.
The pipe fitting main body is one of a sliding tight pipe fitting main body, a clamping pressing pipe fitting main body and a clamping sleeve pipe fitting main body, and a water absorption paper ring is arranged at the inner support end of the pipe fitting main body.
According to the water-swelling sealing pipe fitting, the water-absorbing paper ring is added in the joint, when the joint of the pipe fitting leaks, the physical form of the water-absorbing paper ring changes, the water-absorbing paper ring automatically absorbs water and swells, a water leakage channel space is filled, and the problem of leakage is prevented or solved. The characteristic that increases the paper ring that absorbs water in traditional mechanical connection pipe fitting, the safety defense line that can "initiatively seal" more, the product is more reliable, reduces artificial maintenance, and product novel structure has market spreading value.
Drawings
Fig. 1 is a schematic perspective cross-sectional view of a lower-tightening pipe in a pipe connection state according to the first embodiment;
fig. 2 is a schematic perspective sectional view of the lower tensioning pipe in the expanded state of the absorbent paper ring according to the first embodiment;
fig. 3 is a schematic exploded perspective view of a water absorbent paper ring according to the first embodiment;
fig. 4 is a schematic perspective view of a water-absorbent paper ring according to the second embodiment;
fig. 5 is a schematic perspective view of the pipe fitting of the third embodiment;
fig. 6 is an exploded perspective view of the ferrule tube of the fourth embodiment.
Detailed Description
The pipe fitting comprises a pipe fitting main body 1, an inner supporting end 10, a sealing convex rib 11, an annular groove 12, an annular expansion cavity 13, a sealing ring 14, a clamping ring 2, a clamping ring notch 20, a pipe 3, a water absorption paper ring 5, an inclined notch 50, a water absorption paper ring unit 52 and a hexagonal cap 6.
The preferred embodiments of the present invention will be further described with reference to the accompanying drawings.
In the first preferred embodiment shown in fig. 1, the water-swellable sealed tube comprises a tube body 1 provided with an inner supporting end 10, and a clamping ring 2 which is matched with the inner supporting end 10 to fasten a tube 3; the inner supporting end 10 is provided with an annular groove 12, and a water-absorbing paper ring 5 which automatically expands and seals when meeting water is arranged in the annular groove 12.
The embodiment is a sliding and tight pipe fitting which is widely applied in China, Europe and America and the like and is used for connecting polyethylene or aluminum plastic pipes. The pipe fitting body 1 in the embodiment is directly internally threaded and has an inner support end 10, and the pipe fittings are various in types, and are provided with elbows with two inner support ends 10, tee joints with three inner support ends 10, externally threaded tee joints and the like. The inner support end 10 is provided with a sealing convex rib 11. The snap ring 2 for sliding tight the tube is substantially cylindrical ring shaped. The distance between the outer diameter of the sealing convex rib 11 and the inner diameter of the clamping ring 2 is not more than the wall thickness of the pipe 3, and the sealing convex rib 11 plays a role in sealing and meshing.
The smooth tight pipe fitting installation process has the condition that the pipe expanding operation is not standard, the smooth tight installation is not in place, the matching of the pipe and the pipe fitting is poor, and the cold and hot shrinkage of later-stage pipe are caused, so that the pipe fitting is connected to cause water seepage or leakage. The pipe fitting can not avoid the problems, can only be connected and solved through manual replacement, has high maintenance cost and has a plurality of troubles.
The water absorption paper ring 5 is used in the exhaust valve in the prior art, and is filled on the upper part of the exhaust valve cap body in multiple layers in 'an automatic exhaust valve' with the publication number of CN 201836397U. When the exhaust valve exhausts, pipeline air is exhausted through the gaps between the water absorption paper rings and the transverse exhaust channel; when the exhaust valve leaks water, the water absorption paper ring automatically expands when meeting water, so that a channel is blocked and leakage is prevented; the absorbent paper ring recovers to exhaust after dehydration and drying. Publication number CN201844076U also discloses similar technology, also used in the field of exhaust valves. The water absorption paper ring in the prior art can expand by about 50% of the thickness of the water absorption paper ring after absorbing water, has good quality which can reach more than 90%, can basically recover the original thickness after losing water, and has the characteristic of repeated use.
After the pipe fittings are connected and installed, an independent annular expansion cavity 13 is formed between the annular groove 12 provided with the water absorption paper ring 5 and the pipe 3. When the sealing convex rib 11 on the right side of the inner support end 10 of the sliding tight pipe fitting fails, the water medium of the pipe leaks to the outside, when the pipe passes through the annular expansion cavity 13, the water-absorbing paper ring 5 expands with water, as shown in the attached figure 2, the clearance channel between the annular groove 12 and the pipe 3 is separated due to the expansion of the water-absorbing paper ring 5, and a sealing separation belt is formed.
The sealing key of the sliding tight pipe fitting is as follows: the material property of the tube 3 is matched with the size of the sealing convex rib 11 to form a memory compression seal. Conventional seals are more compression seals using rubber materials. The water absorption paper ring 5 for sealing the pipe fitting with the structure is different from the prior art in action mode, and firstly, the water absorption paper ring 5 is of a composite compressed fiber structure and has a sealing function only after being combined with water and changed in a narrow space. Secondly, under normal conditions, the paper ring 5 that absorbs water does not play sealed effect, only when the pipe fitting junction leaks, just has sealed effect, realizes the state transform. Thirdly, the absorbent paper ring 5 does not have the compression elasticity characteristic similar to a rubber material.
As shown in fig. 3, the absorbent paper ring 5 adopts a strip-shaped paper strip structure and is wound and adhered on the annular groove 12. The glue which is not waterproof is better for bonding; or covering and fixing the wound film by a water permeable film.
The two ends of the water absorbing paper ring 5 with the strip-shaped paper strip structure are provided with inclined notches 50, and a circular ring structure with equal thickness is formed after winding and bonding. The oblique cuts 50 at both ends form complementary thicknesses. The attached figure shows a water-absorbing paper ring 5 with two circles of length, which is wound and bonded to form a circular ring laminated structure of two layers of paper. The water absorption paper ring 5 has a circular ring laminated structure with more than two layers of paper, and the number of the layers is an integer, so that an annular structure with equal thickness is formed. The absorbent paper ring 5 may also be a one-layer circular laminated structure.
The absorbent paper ring 5 is arranged on the inner support end 10, and can be of an integrally formed circular ring structure without a connecting notch and is sleeved in the annular groove 12. Or the water absorption paper ring 5 adopts a spray forming mode, namely, the water absorption material is in a paste state, the binding agent is added, the mixture is uniformly coated on the annular groove 12, and the drying is carried out to form the integrated water absorption paper ring 5.
In the embodiment, only one absorbent paper ring 5 is provided in the annular groove 12. The inner support end 10 can be provided with one or more than one annular groove 12 for arranging the absorbent paper ring 5 to form a plurality of sealing defense lines.
In a second preferred embodiment shown in figure 4, the body 1 of the slip pipe fitting of the elbow type has an inner support end 10 which is substantially similar in construction to the first embodiment. The water-swelling sealed pipe fitting comprises a pipe fitting main body 1 provided with an inner supporting end 10 and a clamping ring 2 which is matched with the inner supporting end 10 to fasten a pipe; the inner supporting end 10 is provided with an annular groove 12, and a water-absorbing paper ring 5 which automatically expands and seals when meeting water is arranged in the annular groove 12. The absorbent paper ring 5 is composed of more than two absorbent paper ring units 52.
A plurality of absorbent paper ring units 52 are arranged in the same annular groove 12, so that a plurality of small sealing defense lines can be formed, the sealing effect is improved, and the length and the cost of the inner supporting end 10 can be reduced. The number of the absorbent paper ring unit 52 of this embodiment is 4.
The absorbent paper ring 5 of this embodiment is fixed to the annular groove 12 at the front end of the inner support end 10, unlike the embodiment at the rear end.
The third preferred embodiment shown in fig. 5 is a clamping and pressing pipe fitting structure widely applied to building water supply, and is particularly suitable for connecting aluminum plastic pipes and polyethylene pipes, and the structure of the inner bracing end 10 is similar to the embodiment. Water-swelling sealed pipe fitting, including being equipped with the pipe fitting main part 1 of interior end 10 that props, with the snap ring 2 of interior end 10 cooperation fastening tubular product that props, be equipped with annular groove 12 on the end 10 that props in, be equipped with a water-absorbing paper ring 5 that meets water automatic inflation seal in the annular groove 12.
The clamping and pressing pipe fitting fixes the pipe on the inner support end 10 through the embedding and pressing deformation clamping ring 2. The inner support end 10 is provided with a conventional sealing ring 14. The water absorption paper ring 5 is positioned at the front end of the sealing ring 14 and can be used for opening sealing or reducing water leakage pressure, so that the sealing effect of the following sealing ring 14 is better. The water absorption paper ring 5 can also be designed at the rear end of the sealing ring 14 to be used as the last safety line; or the inner supporting end 10 is provided with more than two annular grooves 12 of the absorbent paper rings 5, and a plurality of absorbent paper rings 5 are matched with the sealing ring 14, so that sealing with better effect is realized.
If the existing clamping and pressing pipe fitting leaks water, a connecting section needs to be cut off, or a clamping and pressing pipe fitting for repairing shown in CN206708606U is adopted; and adopt the paper ring 5 that absorbs water, leak can take self initiative to restore, the pipe fitting function is more powerful, and the pipe fitting is connected also safelyr.
The fourth preferred embodiment shown in fig. 6 is a ferrule-type adapter structure similar to the "new pocketed ferrule tube" shown in CN204026007U, wherein the inner support end 10 is similar to the first embodiment. Water-swelling sealed pipe fitting, including being equipped with the pipe fitting main part 1 of interior end 10 that props, with the snap ring 2 of interior end 10 cooperation fastening tubular product that props, be equipped with annular groove 12 on the end 10 that props in, be equipped with a water-absorbing paper ring 5 that meets water automatic inflation seal in the annular groove 12.
In the embodiment, the absorbent paper ring 5 is an integrally formed circular ring structure without connecting notches. The absorbent paper ring 5 is a one-layer circular ring laminated structure and forms an annular structure with equal thickness.
The clamping ring 2 in the embodiment is provided with a clamping ring notch 20, and the clamping ring 2 is extruded by the hexagon cap 6 to deform and hold the pipe tightly. The water absorption paper ring 5 can reduce the water pressure of water leakage or block water leakage at the inner support end 10. The safety of pipeline connection is improved.
The pipe fitting main body 1 of the water-swelling sealing pipe fitting is one of a sliding pipe fitting main body, a clamping and pressing pipe fitting main body and a clamping sleeve pipe fitting main body, and a water-absorbing paper ring 5 is arranged on an inner support end 10 of the pipe fitting main body 1. The pipe fitting body or other mechanical connecting pipe fitting with an internal supporting end structure and inserted into the inner wall of the pipe.
According to the water-swelling sealing pipe fitting, the water-absorbing paper ring is added in the joint, so that the water-swelling sealing pipe fitting can absorb water and automatically swell, fills a water leakage channel space, blocks or solves the leakage problem, provides a 'active sealing' defense line for the pipe fitting, is safer and more reliable, reduces manual maintenance, is novel in product structure, and has market popularization value.
Claims (3)
1. The water-swelling sealed pipe fitting comprises a pipe fitting main body (1) provided with an inner support end (10) and a clamping ring (2) which is matched with the inner support end (10) to fasten a pipe (3); the method is characterized in that: an annular groove (12) is formed in the inner supporting end (10), and a water-absorbing paper ring (5) which automatically expands and seals when meeting water is arranged in the annular groove (12); the water absorption paper ring (5) is an integrated water absorption paper ring (5) formed by adding adhesive into pasty water absorption materials, uniformly coating the adhesive in the annular groove (12) and drying.
2. The water-swellable sealed tube of claim 1, wherein: the inner supporting end (10) is provided with one or more annular grooves (12) provided with water absorbing paper rings (5).
3. The water-swellable sealed tube of any one of claims 1 to 2, wherein: the pipe fitting main body (1) is one of a sliding tight pipe fitting main body, a clamping pressing pipe fitting main body and a clamping sleeve pipe fitting main body, and a water absorption paper ring (5) is arranged on an inner support end (10) of the pipe fitting main body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010890889.0A CN112032422B (en) | 2020-08-29 | 2020-08-29 | Water-swelling sealing pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010890889.0A CN112032422B (en) | 2020-08-29 | 2020-08-29 | Water-swelling sealing pipe fitting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112032422A CN112032422A (en) | 2020-12-04 |
| CN112032422B true CN112032422B (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010890889.0A Active CN112032422B (en) | 2020-08-29 | 2020-08-29 | Water-swelling sealing pipe fitting |
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| CN (1) | CN112032422B (en) |
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| JPH11223285A (en) * | 1998-02-05 | 1999-08-17 | Hitachi Ltd | Solution joint |
| CN2499672Y (en) * | 2001-08-08 | 2002-07-10 | 辽宁东沅管业有限公司 | Aluminium plastic composite pipeline joint |
| TW563765U (en) * | 2003-02-21 | 2003-11-21 | Jen-Lung Shiu | Improved joint structure for waste water conveying pipe |
| CN2839784Y (en) * | 2005-08-23 | 2006-11-22 | 浙江金德阀门有限公司 | Bayonet pressing aluminium plastic composite pipe fittings |
| CN201844076U (en) * | 2010-10-22 | 2011-05-25 | 茅月敏 | Automatic deflating valve |
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| CN204026007U (en) * | 2014-07-31 | 2014-12-17 | 浙江铭仕管业有限公司 | A kind of novel ferrule-type pipe fitting of usheing to seat |
| CN204042244U (en) * | 2014-07-16 | 2014-12-24 | 上海三盛金属制品有限公司 | Leak self repair pipeline adaptor |
| CN206708606U (en) * | 2017-05-14 | 2017-12-05 | 黄德修 | A kind of reparation clamping and pressing fitting |
| CN209725193U (en) * | 2019-03-19 | 2019-12-03 | 吕文博 | Band and its sealing volume |
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|---|---|---|---|---|
| JPH08242523A (en) * | 1995-02-28 | 1996-09-17 | Daiichi Gijutsu Sangyo Kk | Sealing tape for cable connection |
| JPH11223285A (en) * | 1998-02-05 | 1999-08-17 | Hitachi Ltd | Solution joint |
| CN2499672Y (en) * | 2001-08-08 | 2002-07-10 | 辽宁东沅管业有限公司 | Aluminium plastic composite pipeline joint |
| TW563765U (en) * | 2003-02-21 | 2003-11-21 | Jen-Lung Shiu | Improved joint structure for waste water conveying pipe |
| CN2839784Y (en) * | 2005-08-23 | 2006-11-22 | 浙江金德阀门有限公司 | Bayonet pressing aluminium plastic composite pipe fittings |
| CN201844076U (en) * | 2010-10-22 | 2011-05-25 | 茅月敏 | Automatic deflating valve |
| CN102700179A (en) * | 2012-05-29 | 2012-10-03 | 临安市振宇吸水材料有限公司 | Water absorption paper |
| CN103115205A (en) * | 2013-01-28 | 2013-05-22 | 浙江世进水控股份有限公司 | Sliding-compact-type pipe fitting for aluminum-plastic pipe |
| CN204042244U (en) * | 2014-07-16 | 2014-12-24 | 上海三盛金属制品有限公司 | Leak self repair pipeline adaptor |
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| CN209725193U (en) * | 2019-03-19 | 2019-12-03 | 吕文博 | Band and its sealing volume |
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| Publication number | Publication date |
|---|---|
| CN112032422A (en) | 2020-12-04 |
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