CN220749322U - Stainless steel corrugated pipe joint - Google Patents
Stainless steel corrugated pipe joint Download PDFInfo
- Publication number
- CN220749322U CN220749322U CN202321813086.0U CN202321813086U CN220749322U CN 220749322 U CN220749322 U CN 220749322U CN 202321813086 U CN202321813086 U CN 202321813086U CN 220749322 U CN220749322 U CN 220749322U
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- Prior art keywords
- corrugated pipe
- section
- stainless steel
- movable nut
- outer diameter
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- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 25
- 239000010935 stainless steel Substances 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 238000004080 punching Methods 0.000 claims abstract description 19
- 230000000694 effects Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 3
- 230000001965 increasing effect Effects 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 2
- 208000006877 Insect Bites and Stings Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Joints With Pressure Members (AREA)
Abstract
The utility model discloses a stainless steel corrugated pipe joint, which comprises a corrugated pipe, a movable nut and a sealing ring, wherein the movable nut is movably sleeved at the front end of the corrugated pipe, the sealing ring is arranged in the movable nut, the end part of the corrugated pipe is provided with a flat punching part, the flat punching part comprises a first flat punching section and a second flat punching section which are arranged in a fitting way from front to back, the sealing ring is in sealing fit with the end face of the first flat punching section, the outer diameter of the second flat punching section is larger than the outer diameter of the first flat punching section, and the rear end of the movable nut is in axial limit fit with the second flat punching section. Aiming at the defects and shortcomings of the prior art, the utility model provides the stainless steel corrugated pipe joint which is simple and reasonable in structure, and by optimally designing the corrugated pipe structure, the area of a flange surface can be effectively increased by adopting the corrugated pipe body on the premise of not increasing spare parts, the drawing force of the joint of the corrugated pipe and the nut is increased, and the stainless steel corrugated pipe joint is reliable in performance and low in production cost.
Description
Technical Field
The utility model relates to the technical field of corrugated pipe joints, in particular to a stainless steel corrugated pipe joint.
Background
The stainless steel corrugated pipe has the characteristics of strong corrosion resistance, sedimentation resistance, rat and insect bite resistance, no pipe blockage and the like, and the characteristics enable the stainless steel corrugated pipe to be widely applied to air pipes (such as gas pipeline connection) and water pipes. The connection of the stainless steel corrugated pipe joint directly influences the air tightness of the whole corrugated pipe, so the design of the joint part is particularly important, and the joint cost in the market at present accounts for about 50% of the product cost. In order to save the cost of the stainless steel corrugated pipe joint, part of the joint directly punches the waveform of the corrugated pipe, so that the product cost is effectively reduced, but the potential safety hazard is large, the flange surface obtained by directly punching the waveform of the corrugated pipe is small, the contact surface with the interface nut is small, and the falling phenomenon is easy to generate. There is also some to connect and increase the snap ring after the corrugated tube wave form of leveling and reach the tensile effect of increase, for example chinese patent (application number 201520394276.2) discloses a bellows quick-operation connector, including compressing tightly cover and sleeve, compress tightly the top of cover extend have with sleeve screw-thread fit's external screw thread connecting portion, compress tightly set gradually snap ring and gasket between cover and the sleeve, the snap ring includes the snap ring main part, the outside of the flat end of bellows is located to the snap ring main part cover, and this kind of technique is even reached the tensile effect of increase yet, has increased snap ring and process, makes the cost increase. In addition, part of the joints are connected with the stainless steel corrugated pipe in a flange welding mode, but the technical requirements on the welded parts are high, the defective rate is high due to easy welding leakage, and the labor and material consumption is high.
Disclosure of Invention
The utility model aims to overcome the defects and shortcomings of the prior art, and provides the stainless steel corrugated pipe joint which is simple and reasonable in structure, and by means of optimizing the corrugated pipe structure, the area of a flange surface can be effectively increased by adopting a corrugated pipe body on the premise of not increasing spare parts, the drawing force of the joint of the corrugated pipe and a nut is increased, the performance is reliable, and the production cost is low.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a stainless steel corrugated pipe joint, includes bellows, adjustable nut and sealing washer, the adjustable nut activity cup joints in the front end of bellows, and the sealing washer sets up in the inside of adjustable nut, the tip of bellows is provided with towards flat portion, towards flat portion including being the first section of dashing that the laminating set up and the second from front to back towards flat section, the sealing washer is with the terminal surface sealing fit of first section of dashing, and the external diameter of second dashes flat section is greater than the external diameter of first section of dashing, the rear end of adjustable nut with the second dashes flat section axial spacing fit.
Further, the rear end of the movable nut is provided with an annular step part, and the second punching section is propped against the annular step part, so that the rear end of the movable nut is in axial limit fit with the second punching section.
Further, the sealing ring is a flat gasket sealing ring made of rubber materials.
Further, the ratio of the outer diameter of the first flattened section to the outer diameter at the crest of the corrugated pipe is 1.05-1.09:1.
further, the ratio of the outer diameter of the second flattened section to the outer diameter at the crest of the bellows is 1.1-1.14:1.
after the structure is adopted, the utility model has the beneficial effects that: the utility model provides a stainless steel corrugated pipe joint, which expands/expands the original long wave of a corrugated pipe to achieve the purpose of increasing the wave width, and then smoothes the widened wave, so as to obtain a second flat section, wherein the outer diameter of the second flat section is larger than that of a first flat section obtained by directly punching the original long wave of the corrugated pipe, so that the flange surface is effectively enlarged, the contact area between a flat section and an annular step part of a movable nut is increased, the drawing force at the joint of the corrugated pipe and the movable nut is increased, and the problem of falling-out of the movable nut is effectively solved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments will be briefly described below, and it will be apparent that the drawings in the description below are some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic illustration of the bellows after inflation/inflation of the waveform of the present utility model;
FIG. 3 is a schematic view of the bellows of the present utility model after the portion to be flattened is flattened;
fig. 4 is an enlarged schematic view of fig. 3 at a in accordance with the present utility model.
The reference numerals in fig. 1 to 4 are:
1-a corrugated tube; 6-widening wave; 7-primary long wave;
2-a movable nut; 5-an annular step;
3-a sealing ring;
4-punching a flat part; 8-a first punching section; 9-a second punching section.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1 to 4, the present utility model provides:
example 1
The utility model provides a stainless steel corrugated pipe joint, includes bellows 1, movable nut 2 and sealing washer 3, movable nut 2 activity cup joints in the front end of bellows 1, and sealing washer 3 sets up in the inside of movable nut 2, and sealing washer 3 is the flat pad sealing washer of being made by rubber material. The end of bellows 1 is provided with towards flat portion 4, towards flat portion 4 including being the first towards flat section 8 and the second towards flat section 9 that the laminating set up from front to back, sealing washer 3 and the terminal surface sealing fit of first towards flat section 8, the external diameter that the second towards flat section 9 is greater than the external diameter that first towards flat section 8, the rear end of movable nut 2 is provided with annular step portion 5, the second towards flat section 9 with annular step portion 5 offsets for the annular step portion 5 of movable nut 2 with the axial spacing cooperation of second towards flat section 9.
Based on the above embodiment, the utility model aims to provide the stainless steel corrugated pipe joint, which has a simple and reasonable structure, and can effectively increase the area of the flange surface by adopting the corrugated pipe body on the premise of not increasing spare parts by optimally designing the corrugated pipe structure, thereby increasing the drawing force of the joint of the corrugated pipe and the nut, and the stainless steel corrugated pipe joint has reliable performance and lower production cost. The specific method for realizing the increase of the flange surface area is as follows: the second wave of the to-be-flattened part at the front end of the corrugated pipe 1 is expanded/expanded by using a wave-expanding machine, and the wave width is enlarged, so that the expanded/expanded widened wave 6 shown in fig. 2 is obtained, and the wave width of the widened wave 6 is obviously larger than that of the original long wave 7. The part to be flattened is then flattened to form a first flattened section 8 and a second flattened section 9, the outer diameter of the second flattened section 9 being obviously larger than the outer diameter of the first flattened section 8, as shown in fig. 3.
As a preferred solution of a stainless steel bellows joint, wherein the ratio of the outer diameter of the first flattened section 8 to the outer diameter at the crest of the bellows 1 is 1.05:1, the ratio of the outer diameter of the second flattened section 9 to the outer diameter at the crest of the bellows 1 is 1.1:1.
example two
The present embodiment provides a stainless steel corrugated pipe joint, whose main structure and related principles are the same as those of the first embodiment, except that:
the ratio of the outer diameter of the first flattened section 8 to the outer diameter at the crest of the bellows 1 is 1.07:1, the ratio of the outer diameter of the second flattened section 9 to the outer diameter at the crest of the bellows 1 is 1.12:1.
example III
The present embodiment provides a stainless steel corrugated pipe joint, whose main structure and related principles are the same as those of the first embodiment, except that:
the ratio of the outer diameter of the first flattened section 8 to the outer diameter at the crest of the bellows 1 is 1.09:1, the ratio of the outer diameter of the second flattened section 9 to the outer diameter at the crest of the bellows 1 is 1.14:1.
based on the three embodiments, the flange surface is effectively enlarged by flattening the widened wave 6, the contact area of the flattened part 4 and the annular step 5 of the movable nut 2 is increased, the drawing force of the joint of the corrugated pipe 1 and the movable nut 2 is increased, and the problem that the movable nut is separated is effectively solved. The front end of the second flattening section 9 is provided with a first flattening section 8, so that the strength of the flange surface is enhanced for enhancing the rigidity of the flange surface, and the drawing force of the joint of the corrugated pipe 1 and the movable nut 2 can be further increased. From the above three embodiments, it is known that the larger the ratio of the outer diameter of the second flattened section 9 to the outer diameter of the first flattened section 8, the larger the drawing force at the connection of the bellows 1 and the movable nut 2, wherein the larger the ratio of the outer diameter of the first flattened section 8 to the outer diameter at the peak of the bellows 1, the larger the supporting force that the first flattened section 8 gives to the second flattened section 9.
The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.
Claims (5)
1. The utility model provides a stainless steel corrugated pipe joint, includes bellows (1), movable nut (2) and sealing washer (3), movable nut (2) activity cup joints in the front end of bellows (1), and sealing washer (3) set up in the inside of movable nut (2), the tip of bellows (1) is provided with towards flat part (4), its characterized in that: the utility model discloses a seal ring, including punching flat portion (4), seal ring (3) and the terminal surface sealing fit that first section (8) were punched to first section (8) and second that dash flat portion (4) including being the laminating setting from front to back, the external diameter that second towards flat section (9) is greater than the external diameter that first towards flat section (8), the rear end of movable nut (2) with second towards flat section (9) axial spacing fit.
2. A stainless steel bellows joint according to claim 1, wherein: the rear end of the movable nut (2) is provided with an annular step part (5), and the second punching section (9) is propped against the annular step part (5) so that the rear end of the movable nut (2) is in axial limit fit with the second punching section (9).
3. A stainless steel bellows joint according to claim 1, wherein: the sealing ring (3) is a flat gasket sealing ring made of rubber materials.
4. A stainless steel bellows joint according to claim 1, wherein: the ratio of the outer diameter of the first punching section (8) to the outer diameter of the wave crest of the corrugated pipe (1) is 1.05-1.09:1.
5. a stainless steel corrugated pipe joint according to claim 1, characterized in that the ratio of the outer diameter of the second flattened section (9) to the outer diameter at the crest of the corrugated pipe (1) is 1.1-1.14:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321813086.0U CN220749322U (en) | 2023-07-11 | 2023-07-11 | Stainless steel corrugated pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321813086.0U CN220749322U (en) | 2023-07-11 | 2023-07-11 | Stainless steel corrugated pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220749322U true CN220749322U (en) | 2024-04-09 |
Family
ID=90557285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321813086.0U Active CN220749322U (en) | 2023-07-11 | 2023-07-11 | Stainless steel corrugated pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220749322U (en) |
-
2023
- 2023-07-11 CN CN202321813086.0U patent/CN220749322U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |