Copper-iron combined double-layer sealing connecting pipe fitting
By using a double-layer sealing connection pipe fitting design combining copper and iron, the limitations of material properties and insufficient sealing performance are solved, achieving the effect of effectively preventing fluid leakage and extending service life.
Patent Information
- Application Number
- CN202520488029.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-03-20
AI Technical Summary
Existing metal pipe fittings have limitations in material properties (copper is corrosion-resistant but expensive and has low strength, while iron has high strength but is prone to rust) and insufficient sealing performance.
The design employs a double-layer sealed connection pipe fitting with copper and iron, utilizing a sealing ring and a double-layer sealing groove in conjunction with a threaded and arc-shaped positioning structure, combined with a welded ring and weld seam design to enhance sealing performance and structural stability.
Effectively prevents fluid leakage, suitable for high-pressure environments, extends service life, is easy to install, has a copper layer to isolate corrosion, an iron layer to provide support, resists vibration and thermal deformation, and ensures precise and reliable connection.
Smart Images
Figure CN223690568U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to pipeline connection technical field especially relates to a copper iron combined double -layer sealed connecting pipe fitting. BACKGROUND
[0002] Metal connecting pipe fittings are metal products used for connecting, converting, controlling, and supporting piping systems. They are usually made of different types of metals, such as steel, copper, aluminum, cast iron, etc. Metal pipe fittings can be used in various applications, including construction, industry, chemical, oil and gas, etc.
[0003] The existing metal connecting pipe fittings are mostly made of single material (such as all copper or all iron), which has the following problems:
[0004] Material performance limitations: copper material is resistant to corrosion but high in cost and low in strength; iron material is high in strength but prone to rust. Single material cannot balance corrosion resistance and mechanical strength.
[0005] Insufficient sealing: traditional threaded connection or welding structure is prone to sealing failure due to material thermal expansion and contraction or vibration after long-term use, causing leakage. SUMMARY
[0006] In view of the deficiencies of the prior art, the utility model provides a copper iron combined double -layer sealed connecting pipe fitting, which overcomes the deficiencies of the prior art and effectively solves the problems of material performance limitations and insufficient sealing.
[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0008] A copper iron combined double -layer sealed connecting pipe fitting, comprising a copper pipe fitting, an iron pipe fitting is arranged on the inner wall of the copper pipe fitting, and a sealing ring is arranged between the copper pipe fitting and the iron pipe fitting, an outer thread is arranged on the outer wall of the iron pipe fitting away from the sealing ring, and an arc positioning block is arranged on one side of the outer thread, and first and second welding rings are arranged on the outer walls of the iron pipe fitting and the copper pipe fitting respectively.
[0009] Preferably, a welding seam is arranged at the connection between the first and second welding rings.
[0010] Preferably, first and second sealing grooves are respectively arranged on the inner walls of the iron pipe fitting and the copper pipe fitting, and the sealing ring is tightly attached to the inner walls of the first and second sealing grooves.
[0011] Preferably, an inner thread groove is arranged on the inner wall of one end of the copper pipe fitting, and the outer thread is screwed on the inner wall of the inner thread groove.
[0012] Preferably, an arc positioning groove is arranged on the inner wall of the copper pipe fitting, and the arc positioning block is slidingly connected to the inner wall of the arc positioning groove.
[0013] Preferably, the copper pipe fitting comprises a connecting seat and a copper sleeve arranged on the outer wall of one side of the connecting seat, and the iron pipe fitting comprises a tapered sleeve and an iron sleeve arranged on the outer wall of one side of the tapered sleeve.
[0014] Preferably, the outer wall of the tapered sleeve is provided with a protective ring, and the protective ring is tightly attached to the outer wall of the copper sleeve.
[0015] The copper-iron combined double-layer sealing connecting pipe fitting has the advantages that:
[0016] 1. The copper-iron combined double-layer sealing connecting pipe fitting adopts a sealing ring cooperating with a double-layer sealing groove design, effectively prevents fluid leakage, is suitable for a high-pressure environment, and utilizes a copper layer to isolate external corrosion and an iron layer to provide structural support, so that the copper-iron composite structure and double sealing can effectively prolong the service life of the connecting pipe fitting.
[0017] 2. The copper-iron combined double-layer sealing connecting pipe fitting adopts a thread and arc surface positioning structure, simplifies the installation process, ensures accurate and reliable connection, and is convenient to install, and the welding ring and weld joint design can enhance the overall rigidity, reduce sealing failure caused by vibration or temperature change, and has the characteristics of anti-vibration and thermal deformation. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 The utility model provides a kind of copper-iron combined double-layer sealing connecting pipe fitting's overall connection structure schematic diagram;
[0019] Figure 2 The utility model provides a kind of copper-iron combined double-layer sealing connecting pipe fitting's overall split structure schematic diagram;
[0020] Figure 3 The utility model provides a kind of copper-iron combined double-layer sealing connecting pipe fitting's copper pipe fitting internal connection structure schematic diagram;
[0021] Figure 4 The utility model provides a kind of copper-iron combined double-layer sealing connecting pipe fitting's copper pipe fitting internal structure schematic diagram.
[0022] In the drawing: 1, copper pipe fitting;2, iron pipe fitting;3, sealing ring;4, external thread;5, arc surface positioning block;6, first welding ring;7, second welding ring;8, weld joint;9, first sealing groove;10, second sealing groove;11, internal thread groove;12, arc surface positioning groove. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0024] Embodiment one, refer to Figure 2 A copper-iron combined double-layer sealing connecting pipe fitting, comprising a copper pipe fitting 1, an iron pipe fitting 2 arranged on the inner wall of the copper pipe fitting 1, and a sealing ring 3 arranged between the copper pipe fitting 1 and the iron pipe fitting 2.
[0025] In this embodiment, the sealing ring 3 cooperates with the double-layer sealing groove design to effectively prevent fluid leakage, which is suitable for high-pressure environments. The copper layer isolates external corrosion, and the iron layer provides structural support. The copper-iron composite structure and double sealing can effectively prolong the service life of the connecting pipe fitting.
[0026] Embodiment two, refer to Figures 1-3 A copper-iron combined double-layer sealing connecting pipe fitting, an external thread 4 is arranged on the outer wall of the iron pipe fitting 2 away from one end of the sealing ring 3, and an arc positioning block 5 is arranged on one side of the external thread 4. First and second welding rings 6 and 7 are arranged on the outer walls of the iron pipe fitting 2 and the copper pipe fitting 1, respectively. The iron pipe fitting 2 is inserted into the copper pipe fitting 1, and the arc positioning block 5 is aligned with the arc positioning groove 12 to ensure axial positioning.
[0027] In this embodiment, the thread and arc positioning structure simplifies the installation process, ensures accurate and reliable connection, and is convenient to install. The welding ring and weld 8 design can enhance the overall rigidity, reduce the sealing failure caused by vibration or temperature change, and has the characteristics of anti-vibration and thermal deformation.
[0028] Refer to Figure 1 A weld 8 is arranged between the first and second welding rings 6 and 7. The first and second welding rings 6 and 7 are welded at the connection to form a continuous weld 8, and the fixing is completed.
[0029] Refer to Figure 2 , Figure 4 First and second sealing grooves 9 and 10 are respectively formed in the inner walls of the iron pipe fitting 2 and the copper pipe fitting 1, and the sealing ring 3 is tightly attached to the inner walls of the first and second sealing grooves 9 and 10.
[0030] Refer to Figure 4 An internal thread groove 11 is arranged on one end of the inner wall of the copper pipe fitting 1, and the external thread 4 is screwed onto the inner wall of the internal thread groove 11. The external thread 4 of the iron pipe fitting 2 is screwed with the internal thread groove 11 of the copper pipe fitting 1 until the sealing ring 3 is completely pressed in the first and second sealing grooves 9 and 10.
[0031] Refer to Figure 4 An arc positioning groove 12 is formed in the inner wall of the copper pipe fitting 1, and the arc positioning block 5 is slidingly connected to the inner wall of the arc positioning groove 12.
[0032] Refer to Figure 2The copper pipe fitting 1 comprises a connecting seat and a copper sleeve arranged on the outer wall of one side of the connecting seat, and the iron pipe fitting 2 comprises a taper sleeve and an iron sleeve arranged on the outer wall of one side of the taper sleeve.
[0033] With reference to Figure 1 The outer wall of the taper sleeve is provided with a protective ring, and the protective ring is tightly attached to the outer wall of the copper sleeve. The protective ring is additionally arranged on the outer wall of the taper sleeve of the iron pipe fitting 2, and is tightly attached to the outer wall of the copper sleeve during installation, thereby forming an additional corrosion prevention barrier.
[0034] Working principle: sealing process: the sealing ring 3 is compressed by the screw fastening force, tightly fills the first sealing groove 9 and the second sealing groove 10, and blocks the fluid penetration path;
[0035] Corrosion resistance mechanism: the copper pipe fitting 1 is isolated from the external humid environment, and the protective ring further blocks the contact of the corrosion medium with the iron pipe fitting 2.
[0036] Structural stability: the first additional welding ring 6 and the second additional welding ring 7 are fixed by welding, and disperse the stress with the welding seam 8, thereby avoiding deformation or cracking of the connecting part due to external force.
[0037] The above is only the preferred specific implementation mode of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art, according to the technical scheme and the application concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, and should be covered in the protection scope of the present application.
Claims
1. A copper-iron bonded, double-seal, connecting pipe fitting comprising a copper pipe fitting (1), characterized in that, The inner wall of the copper pipe fitting (1) is provided with an iron pipe fitting (2), and a sealing ring (3) is arranged between the copper pipe fitting (1) and the iron pipe fitting (2), one end of the outer wall of the iron pipe fitting (2) away from the sealing ring (3) is provided with an external thread (4), one side of the external thread (4) is provided with an arc positioning block (5), and the outer walls of the iron pipe fitting (2) and the copper pipe fitting (1) are respectively provided with a first welding ring (6) and a second welding ring (7).
2. A copper-iron bonded, dual-seal, connecting pipe fitting according to claim 1, wherein, Welding seams (8) are arranged at the connecting portions between the first welding ring (6) and the second welding ring (7).
3. A copper ferrule bonded, dual-seal, connecting tubing component as described in claim 1, wherein, First sealing grooves (9) and second sealing grooves (10) are respectively arranged on the inner walls of the iron pipe fitting (2) and the copper pipe fitting (1), and the sealing ring (3) is tightly attached to the inner walls of the first sealing grooves (9) and the second sealing grooves (10).
4. A copper ferrule bonded, dual-seal, connecting tubing component as described in claim 1, wherein, An internal thread groove (11) is arranged on one end of the inner wall of the copper pipe fitting (1), and the external thread (4) is screwed on the inner wall of the internal thread groove (11).
5. A copper ferrule bonded, dual-seal, connecting tubing component as described in claim 1, wherein, An arc positioning groove (12) is arranged on the inner wall of the copper pipe fitting (1), and the arc positioning block (5) is slidingly connected to the inner wall of the arc positioning groove (12).
6. A copper ferrule bonded, dual-seal, connecting tubing component as described in claim 1, wherein, The copper pipe fitting (1) comprises a connecting seat and a copper sleeve arranged on the outer wall of one side of the connecting seat, and the iron pipe fitting (2) comprises a taper sleeve and an iron sleeve arranged on the outer wall of one side of the taper sleeve.
7. A copper-iron bonded, dual-seal, connecting pipe fitting according to claim 6, wherein, A protective ring is arranged on the outer wall of the taper sleeve, and the protective ring is tightly attached to the outer wall of the copper sleeve.