CN219796522U - Pipe joint - Google Patents
Pipe joint Download PDFInfo
- Publication number
- CN219796522U CN219796522U CN202321089479.1U CN202321089479U CN219796522U CN 219796522 U CN219796522 U CN 219796522U CN 202321089479 U CN202321089479 U CN 202321089479U CN 219796522 U CN219796522 U CN 219796522U
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- China
- Prior art keywords
- pipe
- plastic
- plastics
- side wall
- pipe joint
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- 239000004033 plastic Substances 0.000 claims abstract description 130
- 229920003023 plastic Polymers 0.000 claims abstract description 130
- 239000000463 material Substances 0.000 claims abstract description 20
- 230000032683 aging Effects 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000012946 outsourcing Methods 0.000 claims description 2
- 230000003712 anti-aging effect Effects 0.000 abstract description 5
- 231100000252 nontoxic Toxicity 0.000 abstract description 5
- 230000003000 nontoxic effect Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 9
- 229910001369 Brass Inorganic materials 0.000 description 7
- 239000010951 brass Substances 0.000 description 7
- 239000004417 polycarbonate Substances 0.000 description 6
- 229930040373 Paraformaldehyde Natural products 0.000 description 4
- 239000004734 Polyphenylene sulfide Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- 229920006324 polyoxymethylene Polymers 0.000 description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 description 4
- -1 polypropylene Polymers 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 229920000515 polycarbonate Polymers 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Abstract
The utility model belongs to the technical field of pipelines, in particular to a pipe joint, which comprises a hollow plastic inner pipe, wherein more than two end parts are arranged on the plastic inner pipe, a plastic outer pipe is formed by coating the plastic inner pipe, the material strength of the plastic outer pipe is greater than that of the plastic inner pipe, the plastic inner pipe is made of environment-friendly plastic, and the plastic outer pipe is made of anti-aging plastic. The utility model is safe and nontoxic, and has low manufacturing cost, material cost and low price.
Description
Technical Field
The utility model belongs to the technical field of pipelines, and particularly relates to a pipe joint.
Background
The pipe joint is usually processed by lead brass, but with the improvement of the economic and social development level, the requirements of non-toxicity and non-pollution of the pipe joint are greatly improved, and especially the lead content harmful to human health is greatly reduced. Therefore, many pipe joints are processed by adopting low-lead brass, but the low-lead brass has high processing difficulty and high material cost, so that the pipe joint made of the low-lead brass has a price which is much higher than that of the pipe joint made of the lead brass.
Disclosure of Invention
The utility model aims to provide a pipe joint which is safe and nontoxic, low in manufacturing cost and material cost and low in price.
The utility model is realized in the following way:
the utility model provides a coupling, includes hollow plastics inner tube, be equipped with more than two tip on the plastics inner tube, the outer cladding shaping of plastics inner tube has the plastics outer tube, the material strength of plastics outer tube is greater than the material strength of plastics inner tube, the plastics inner tube adopts environmental protection plastics, the plastics outer tube adopts ageing resistance plastics.
In the pipe joint, a circumferential protrusion and an axial protrusion are arranged on the outer side wall of the plastic inner pipe.
In the pipe joint, at least one end face of the plastic inner pipe protrudes out of the end face of the plastic outer pipe, the protruding portion of the plastic inner pipe is sleeved with a pipe, the end face of the plastic outer pipe is concaved inwards to form an annular groove for installing the pipe, and the outer side wall of the plastic outer pipe is provided with an external thread I which is in threaded connection with a nut.
In the pipe joint, the part of the plastic inner pipe protruding out of the plastic outer pipe is sleeved with a sealing ring for sealing the plastic inner pipe and the pipe.
In the pipe joint, the plastic inner pipe is provided with a mounting groove for mounting the sealing ring.
In the pipe joint, a tightening sleeve sleeved on the pipe is arranged between the nut and the pipe, and the nut is used for tightening the pipe by pressing the tightening sleeve.
In the pipe joint, a plurality of anti-slip convex rings are arranged on the inner side wall of the tightening sleeve at intervals along the axial direction.
In the pipe joint, the inner side wall at one end of the nut is provided with the first internal thread which is in threaded connection with the first external thread, the inner side wall at the other end of the nut is provided with the limiting boss which axially limits the tightening sleeve, the tightening sleeve is limited between the plastic outer pipe and the limiting boss, the inner end surface of the limiting boss is a first conical surface, and the diameter of the first conical surface is gradually reduced from the first internal thread to the limiting boss.
In the pipe joint, the tightening sleeve is an elastic clamping ring, an opening is formed in the elastic clamping ring, two conical surfaces II are respectively arranged at two ends of the elastic clamping ring, and the diameter of each conical surface II is gradually reduced from the middle part to the two ends.
In the pipe joint, the inner side wall of at least one end part of the plastic inner pipe is provided with the second internal thread for connection, and the second internal thread is in threaded connection with the faucet or the equipment joint.
In the pipe joint, the inner side wall and the outer side wall of the plastic inner pipe are outwards expanded at the second internal thread, the inner side wall of the plastic outer pipe is attached to the outer side wall of the plastic inner pipe, and the outer side wall of the plastic outer pipe is outwards expanded at the second internal thread.
In the pipe joint, the outer side wall of at least one end part of the plastic outer pipe is provided with the external thread II for connection, and the external thread II is in threaded connection with the water tap or the equipment joint.
In the above-mentioned one kind of pipe joint, the pipe joint is a straight joint, a three-way joint or an elbow.
In the above-mentioned pipe joint, the material of the plastic inner pipe may be PC (polycarbonate) or PP (polypropylene), and the material of the plastic outer pipe may be nylon, POM (polyoxymethylene) or PPs (polyphenylene sulfide).
Compared with the prior art, the utility model has the outstanding advantages that:
1. the plastic inner pipe formed by environment-friendly plastic is directly contacted with liquid, the environment-friendly plastic is safe and nontoxic, the plastic inner pipe is coated with the plastic outer pipe, the material strength of the plastic outer pipe is higher than that of the plastic inner pipe, the defect of insufficient strength of the plastic inner pipe is effectively overcome, the structure is firm, and the plastic outer pipe is made of anti-aging plastic and is effectively sun-proof and anti-aging; meanwhile, the manufacturing cost and the material cost of the plastic inner tube and the plastic outer tube are far lower than those of the brass tube, and the pipe joint has low price;
2. the outer side wall of the plastic inner pipe is provided with the circumferential bulge and the axial bulge, so that the plastic inner pipe and the plastic outer pipe are firmly connected.
Drawings
Fig. 1 is a perspective view of a first embodiment of the present utility model;
FIG. 2 is a cross-sectional view of a first embodiment of the utility model;
FIG. 3 is an exploded view of a first embodiment of the present utility model;
fig. 4 is a perspective view of a second embodiment of the present utility model;
fig. 5 is a perspective view of a fourth embodiment of the present utility model;
fig. 6 is a perspective view of a fifth embodiment of the present utility model;
fig. 7 is a perspective view of a sixth embodiment of the present utility model.
Reference numerals: 1. a plastic inner tube; 11. a circumferential projection; 12. an axial protrusion; 13. an internal thread II; 14. a mounting groove; 2. a plastic outer tube; 21. an annular groove; 22. an external thread I; 23. an external thread II; 3. a tube; 4. a nut; 41. an internal thread I; 42. a limit boss; 43. a conical surface I; 5. tightening the sleeve; 51. an opening; 52. a conical surface II; 53. an anti-slip collar; 6. and (3) sealing rings.
Detailed Description
The utility model is further described below with reference to the specific examples, see fig. 1-7:
embodiment one:
the utility model provides a coupling, includes hollow plastics inner tube 1, be equipped with more than two tip on the plastics inner tube 1, plastics inner tube 1 outsourcing cladding shaping has plastics outer tube 2, the material strength of plastics outer tube 2 is greater than the material strength of plastics inner tube 1, plastics inner tube 1 adopts environmental protection plastics, plastics outer tube 2 adopts ageing resistance plastics.
The environment-friendly plastic is non-toxic and safe to human health, the material of the plastic inner tube 1 is PC (polycarbonate) or PP (polypropylene), and the material of the plastic outer tube 2 can be nylon, POM (polyoxymethylene) or PPS (polyphenylene sulfide). In this embodiment, the material of the plastic inner tube 1 is PC (polycarbonate), and the material of the plastic outer tube is nylon.
As shown in fig. 1-3, the plastic inner pipe 1 formed by adopting environment-friendly plastic is in direct contact with liquid, the environment-friendly plastic is safe and nontoxic, the plastic outer pipe 2 is formed by coating the plastic inner pipe 1, the material strength of the plastic outer pipe 2 is greater than that of the plastic inner pipe 1, the defect of insufficient strength of the plastic inner pipe 1 is effectively overcome, the structure is firm, and the plastic outer pipe 2 adopts anti-aging plastic, so that the sun-proof and anti-aging effects are realized; meanwhile, the manufacturing cost and the material cost of the plastic inner tube 1 and the plastic outer tube 2 are far lower than those of brass tubes, and the pipe joint of the utility model has low price.
In order to firmly connect the plastic inner pipe 1 and the plastic outer pipe 2, the outer side wall of the plastic inner pipe 1 is provided with a circumferential bulge 11 and an axial bulge 12.
In this embodiment, the pipe joint is a three-way joint, the three end structures of the pipe joint are the same and are all used for being connected with the pipe 3, the three end surfaces of the plastic inner pipe 1 are all protruded out of the end surface of the plastic outer pipe 2, the pipe 3 is sleeved on the protruded part of the plastic inner pipe 1, the end surface of the plastic outer pipe 2 is concaved inwards to form an annular groove 21 for installing the pipe 3, and the outer side wall of the plastic outer pipe 2 is provided with an external thread I22 which is in threaded connection with the nut 4.
In order to prevent leakage, the gap between the plastic inner tube 1 and the tube 3 is effectively sealed, and the part of the plastic inner tube 1 protruding out of the plastic outer tube 2 is sheathed with a sealing ring 6 for sealing the plastic inner tube 1 and the tube 3. In this embodiment, two sealing rings 6 are disposed at intervals.
Mounting structure of sealing ring 6: the plastic inner pipe 1 is provided with a mounting groove 14 for mounting the sealing ring 6.
Mounting structure of the tube 3: a tightening sleeve 5 sleeved on the pipe 3 is arranged between the nut 4 and the pipe 3, and the nut 4 tightens and fixes the pipe 3 by pressing the tightening sleeve 5.
Furthermore, an internal thread I41 in threaded connection with the external thread I22 is arranged on the inner side wall at one end of the nut 4, a limiting boss 42 for axially limiting the tightening sleeve 5 is arranged on the inner side wall at the other end of the nut 4, the tightening sleeve 5 is limited between the plastic outer tube 2 and the limiting boss 42, the inner end face of the limiting boss 42 is a conical surface I43, and the diameter of the conical surface I43 is gradually reduced from the internal thread I41 to the limiting boss 42.
The installation process of the tube 3: as shown in fig. 2 and 3, the pipe 3 is sleeved on the plastic inner pipe 1, the tightening sleeve 5 is sleeved on the pipe 3, the nut 4 is screwed on the plastic outer pipe 2, and the first conical surface 43 presses the tightening sleeve 5 in the screwing process of the nut 4, so that the pipe 3 is fixed by the tightening sleeve 5.
In order to better hold the pipe 3 by the tightening sleeve 5, a plurality of anti-slip convex rings 53 are arranged on the inner side wall of the tightening sleeve 5 along the axial direction at intervals.
The structure of the tightening sleeve 5: as shown in fig. 2 and 3, the tightening sleeve 5 is an elastic collar, an opening 51 is formed in the elastic collar, two conical surfaces two 52 are respectively formed at two ends of the elastic collar, and the diameter of the conical surface two 52 gradually decreases from the middle to the two ends. When the first conical surface 43 presses the second conical surface 52, the opening 51 gradually decreases, and the tightening sleeve 5 tightens the pipe 3.
Embodiment two:
the present embodiment is basically the same as the first embodiment in structure, and is mainly different in that: the structure of two ends of the pipe joint is the same as that of one end of the embodiment, and the two ends of the pipe joint are used for being connected with a pipe 3, the other end of the pipe joint is provided with a second internal thread 13 used for connection on the inner side wall of the plastic inner pipe 1, and the second internal thread 13 is in threaded connection with a faucet or a device joint, as shown in fig. 4.
In order to adapt to the faucet with larger outer diameter, the inner side wall and the outer side wall of the plastic inner pipe 1 are outwards expanded at the second internal thread 13, the inner side wall of the plastic outer pipe 2 is attached to the outer side wall of the plastic inner pipe 1, and the outer side wall of the plastic outer pipe 2 is outwards expanded at the second internal thread 13.
Embodiment III:
the present embodiment is basically the same as the first embodiment in structure, and is mainly different in that: the structure of two ends of the pipe joint is the same as that of one end of the embodiment, and the outer side wall of the plastic outer pipe 2 at the other end of the pipe joint is provided with an external thread II 23 for connection, and the external thread II 23 is in threaded connection with a water tap or a device joint.
Embodiment four:
the present embodiment is basically the same as the first embodiment in structure, and is mainly different in that: the pipe joint is a straight joint.
The two ends of the straight joint are the same as the end structure of the three-way joint in the first embodiment, and are used for connection with the pipe 3, as shown in fig. 5.
Fifth embodiment:
the present embodiment has substantially the same structure as the second embodiment, and is mainly different in that: the pipe joint is a straight joint.
One end structure of the straight-through joint is the same as that of the embodiment, and is used for being connected with the pipe 3, the other end of the straight-through joint is provided with a second internal thread 13 for connection on the inner side wall of the plastic inner pipe 1, and the second internal thread 13 is in threaded connection with a faucet or a device joint, as shown in fig. 6.
Example six:
the present embodiment is basically the same as the third embodiment in structure, and is mainly different in that: the pipe joint is a straight joint.
One end structure of the straight-through joint is the same as that of the embodiment, and is used for being connected with the pipe 3, and the other end of the straight-through joint is provided with an external thread II 23 used for connection on the outer side wall of the plastic outer pipe 2, and the external thread II 23 is in threaded connection with a faucet or a device joint, as shown in fig. 7.
Embodiment seven:
the present embodiment is basically the same as the fourth embodiment in structure, and is mainly different in that: the pipe joint is an elbow.
Example eight:
the present embodiment is basically the same as the fifth embodiment in structure, and the main difference is that: the pipe joint is an elbow.
Example nine:
the present embodiment is basically the same as the sixth embodiment described above, and is mainly different in that: the pipe joint is an elbow.
The above embodiment is only one of the preferred embodiments of the present utility model, and is not intended to limit the scope of the present utility model, therefore: all equivalent changes in shape, structure and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (10)
1. A pipe joint, characterized in that: including hollow plastics inner tube (1), be equipped with more than two tip on plastics inner tube (1), plastics outer tube (2) are gone up to plastics inner tube (1) outsourcing cladding shaping, the material strength of plastics outer tube (2) is greater than the material strength of plastics inner tube (1), plastics inner tube (1) adopt environmental protection plastics, plastics outer tube (2) adopt ageing resistance plastics.
2. A pipe joint according to claim 1, wherein: the outer side wall of the plastic inner pipe (1) is provided with a circumferential bulge (11) and an axial bulge (12).
3. A pipe joint according to claim 1, wherein: at least one end face of the plastic inner pipe (1) protrudes out of the end face of the plastic outer pipe, the protruding portion of the plastic inner pipe (1) is sleeved with the pipe (3), the end face of the plastic outer pipe is concavely inwards to form an annular groove (21) for installing the pipe (3), and an external thread I (22) which is in threaded connection with the nut (4) is arranged on the outer side wall of the plastic outer pipe.
4. A pipe joint according to claim 3, wherein: a tightening sleeve (5) sleeved on the pipe (3) is arranged between the nut (4) and the pipe (3), and the nut (4) tightens and fixes the pipe (3) by pressing the tightening sleeve (5).
5. A pipe joint according to claim 4, wherein: be equipped with on the inside wall of nut (4) one end with first (22) screw-thread of external screw thread first (41), be equipped with on the inside wall of nut (4) other end carries out spacing boss (42) of axial spacing to the hooping cover (5), hooping cover (5) spacing between plastics outer tube and spacing boss (42), the interior terminal surface of spacing boss (42) is conical surface first (43), the diameter of conical surface first (43) is by first (41) to spacing boss (42) taper gradually.
6. A pipe joint according to claim 5, wherein: the tightening sleeve (5) is an elastic clamping ring, an opening (51) is formed in the elastic clamping ring, two conical surfaces II (52) are respectively arranged at two ends of the elastic clamping ring, and the diameter of each conical surface II (52) is gradually reduced from the middle part to the two ends.
7. A pipe joint according to claim 1, wherein: the inner side wall of at least one end part of the plastic inner pipe (1) is provided with a second internal thread (13) for connection.
8. A pipe joint according to claim 7, wherein: the inner side wall and the outer side wall of the plastic inner pipe (1) are outwards expanded at the second internal thread (13), the inner side wall of the plastic outer pipe is attached to the outer side wall of the plastic inner pipe (1), and the outer side wall of the plastic outer pipe is outwards expanded at the second internal thread (13).
9. A pipe joint according to claim 1, wherein: and an external thread II (23) for connection is arranged on the outer side wall of at least one end part of the plastic outer tube.
10. A pipe joint according to claim 1, wherein: the pipe joint is a straight joint, a three-way joint or an elbow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321089479.1U CN219796522U (en) | 2023-05-08 | 2023-05-08 | Pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321089479.1U CN219796522U (en) | 2023-05-08 | 2023-05-08 | Pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219796522U true CN219796522U (en) | 2023-10-03 |
Family
ID=88186466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321089479.1U Active CN219796522U (en) | 2023-05-08 | 2023-05-08 | Pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219796522U (en) |
-
2023
- 2023-05-08 CN CN202321089479.1U patent/CN219796522U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |