Cutting sleeve type double-face forming electric smelting connection pipeline joint
By using a compression fitting-type double-sided electrofusion connection pipe joint, a heating coil and locking mechanism are used to fuse the pipes together, solving the problem of easy leakage in traditional pipe connections and achieving a stable and sealed effect.
Patent Information
- Application Number
- CN202422756054.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-12
AI Technical Summary
Traditional pipe connection structures are prone to leakage under high pressure, and the bushing and pipe are prone to slippage, affecting the stability and sealing performance of the connection.
The pipe fitting adopts a compression fitting type double-sided forming electrofusion connection. By fitting an installation ring and a heating coil on the first pipe, and setting a through groove and a fixing ring on the connecting ring, the first and second pipes are fused together by power heating. Combined with a locking mechanism and a sealing ring, stability and sealing are ensured.
It achieves stability and sealing of the pipeline connection, avoids leakage under high pressure, and enhances the adaptability and durability of the connection.
Smart Images
Figure CN223537200U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe joint technology, specifically a compression fitting type double-sided forming electrofusion connection pipe joint. Background Technology
[0002] Pipelines are widely used in industries such as manufacturing and construction, for example, for transporting cleaning fluids, water, and natural gas. Due to factors such as distance, multiple interconnected pipe sections are typically used to transport fluids (including liquids and gases) from their source to their destination.
[0003] Two pipe sections can be connected to each other using pipe fittings. Traditional connections use threads to directly connect the two pipe sections, creating a passage for liquids or gases to flow through. However, excessive pressure inside the pipe can cause leaks at the connection point.
[0004] Chinese patent CN20114195Y discloses a pipe fitting, including a fitting body, a sealing device and an annular retaining ring disposed within the body, the retaining ring having elastic retaining teeth, the retaining ring being axially fixed within the fitting, and a bushing provided within the fitting, with a radial gap between the bushing and the pipe body. This invention uses a bushing to solve the problem that, due to the thin and soft structure of the pipe, deformation easily occurs after the pipe is inserted into the fitting, thus affecting the connection's firmness and sealing performance. However, because the surface of the bushing is relatively smooth, the pipe and bushing are nested together, and under excessive water pressure, the pipe and bushing are prone to relative sliding. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a compression fitting type double-sided forming electrofusion connection pipe joint to improve the stability of pipe connection.
[0006] The technical solution adopted by this utility model to solve its technical problem is a compression fitting type double-sided forming electrofusion connection pipe joint, including a first pipe and a second pipe. The outer diameter of the first pipe is smaller than the inner diameter of the second pipe. An installation ring and a heating coil are coaxially sleeved on the first pipe. The heating coil is fixedly connected to the side wall of the installation ring. A connecting ring is coaxially fixed on the installation ring. The diameter of the connecting ring is larger than the diameter of the heating coil. An installation cavity for placing the second pipe is formed between the connecting ring and the heating coil. The outer surface of the connecting ring is provided with a connection port communicating with the heating coil.
[0007] Furthermore, the connecting ring is provided with a plurality of through grooves along its circumference, the through grooves extending along the axial direction of the connecting ring to the end of the connecting ring away from the mounting ring, and a fixing ring is coaxially provided on the outer surface of the connecting ring, the two ends of the fixing ring being connected by a locking mechanism.
[0008] Furthermore, the locking mechanism includes a connecting block disposed at one end of the fixed ring and a connecting groove disposed at the other end of the fixed ring. The connecting block is provided with a first connecting tooth, and the connecting groove is provided with a second connecting tooth. The first connecting tooth and the second connecting tooth are engaged and connected.
[0009] Furthermore, the outer surface of the connecting ring is provided with a plurality of fixing blocks along its circumference, and the plurality of fixing blocks and the connecting port form a limiting space for placing the fixing ring.
[0010] Furthermore, a sealing ring is provided at the bottom of the mounting cavity.
[0011] Furthermore, an insulating layer is provided on the heating coil.
[0012] The beneficial effects of this utility model are: by fixing the heating coil and the connecting ring on the mounting ring, the mounting ring is sleeved on the first pipe, and the second pipe is placed in the mounting cavity formed by the connecting ring and the heating coil. The external power supply supplies power to the heating coil through the connection port, so that the outer surface of the first pipe and the inner surface of the second pipe are fused together, ensuring the stability of the pipe connection. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the mounting ring;
[0015] Figure 3 yes Figure 2 A sectional view;
[0016] Figure 4 This is a schematic diagram of the fixed ring.
[0017] Reference numerals: 1-First pipe; 2-Second pipe; 3-Mounting ring; 4-Heating coil; 5-Connecting ring; 6-Mounting cavity; 7-Connecting port; 8-Through groove; 9-Fixing ring; 10-Locking mechanism; 11-Connecting block; 12-Connecting groove; 13-First connecting tooth; 14-Second connecting tooth; 15-Fixing block; 16-Sealing ring. Detailed Implementation
[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0019] like Figures 1-4 As shown, the present invention relates to a compression fitting type double-sided electrofusion connection pipe joint, comprising a first pipe 1 and a second pipe 2. The outer diameter of the first pipe 1 is smaller than the inner diameter of the second pipe 2. An mounting ring 3 and a heating coil 4 are coaxially fitted on the first pipe 1. The heating coil 4 is fixedly connected to the side wall of the mounting ring 3. A connecting ring 5 is coaxially fixed on the mounting ring 3. The diameter of the connecting ring 5 is larger than the diameter of the heating coil 4. An installation cavity 6 for placing the second pipe 2 is formed between the connecting ring 5 and the heating coil 4. A connection port 7 communicating with the heating coil 4 is provided on the outer surface of the connecting ring 5.
[0020] The first pipe 1 and the second pipe 2 are both made of plastic materials such as polyethylene (PE) or polypropylene (PP). The outer diameter of the first pipe 1 is smaller than the inner diameter of the second pipe 2, which facilitates the insertion of the second pipe 2 into the mounting cavity 6 formed by the connecting ring 5 and the heating coil 4. The mounting ring 3 is circular, and its inner diameter is larger than the outer diameter of the first pipe 1, so that the mounting ring 3 can be fitted onto the first pipe 1. The heating coil 4 can be made of a single copper wire and is tightly attached to the outer surface of the first pipe 1. The heating coil 4 can be coaxially bonded to the side of the mounting ring 3 using hot melt adhesive. On the wall; the connecting ring 5 can be coaxially bonded to the side wall of the mounting ring 3 with hot melt adhesive. The diameter of the connecting ring 5 is larger than the diameter of the heating coil 4, which creates a gap between the connecting ring 5 and the heating coil 4, forming a mounting cavity 6 for placing the second pipe 2. In this way, the pipe wall of the second pipe 2 can be placed in the mounting cavity 6, so that the heating coil 4 contacts the inner surface of the second pipe 2; the connecting port 7 is connected to the heating coil 4. Through the connecting port 7, an external power supply is connected to make the heating coil 4 heat up. The heating coil 4 will cause the outer surface of the first pipe 1 and the inner surface of the second pipe 2 to fuse together.
[0021] During the connection process, the wall thickness of the second pipe 2 may vary. To improve the adaptability of the connection, further details can be found in the documentation. Figure 2 and Figure 4The connecting ring 5 has multiple through grooves 8 arranged circumferentially, and the through grooves 8 extend axially along the connecting ring 5 to the end of the connecting ring 5 away from the mounting ring 3. A fixing ring 9 is coaxially arranged on the outer surface of the connecting ring 5, and the two ends of the fixing ring 9 are connected by a locking mechanism 10. The through grooves 8 extend from the outer surface to the inner surface of the connecting ring 5, and extend axially along the connecting ring 5 to the end of the connecting ring 5 away from the mounting ring 3. This arrangement allows for changes in the size of the mounting cavity 6 formed by the connecting ring 5 and the heating coil 4, enabling the connection of second pipes 2 of various thicknesses. To ensure stability after connection, the connecting ring 5 is fixed by the fixing ring 9 on the outer surface of the connecting ring 5 after the second pipe 2 is installed, thus ensuring the stability of the second pipe 2.
[0022] The locking mechanism 10 can be used to fix the fixing ring 9 and the connecting ring 5 by means of bolts and wing plates. Specifically, wing plates are installed at both ends of the fixing ring 9, and through holes are provided on the wing plates. Bolts pass through the through holes and are then fixed with nuts. Tightening the nuts secures the fixing ring 9. Further details can be found in [reference needed]. Figure 4 In a preferred embodiment, the locking mechanism 10 includes a connecting block 11 disposed at one end of the fixing ring 9 and a connecting groove 12 disposed at the other end of the fixing ring 9. The connecting block 11 is provided with a first connecting tooth 13, and the connecting groove 12 is provided with a second connecting tooth 14. The first connecting tooth 13 and the second connecting tooth 14 are engaged. The connecting block 11 and the fixing ring 9 can be integrally formed, and similarly, the connecting groove 12 can also be integrally formed with the fixing ring 9. The connecting block 11 and the connecting groove 12 are opposite each other. The tooth surface length of the first connecting tooth 13 is less than the tooth surface length of the second connecting tooth 14, thus allowing adjustment of the engagement position of the first connecting tooth 13 and the second connecting tooth 14 to adjust the tightness of the fixing ring 9.
[0023] To prevent the retaining ring 9 from becoming misaligned, further see... Figure 2 The outer surface of the connecting ring 5 is provided with a plurality of fixing blocks 15 along its circumference, and the plurality of fixing blocks 15 and the connecting port 7 form a limiting space for placing the fixing ring 9. The fixing blocks 15 are integrally formed with the connecting ring 5. In use, the side wall of the fixing ring 9 is in close contact with the side wall of the fixing block 15, so that the fixing ring 9 can be positioned.
[0024] Further, see Figure 3 A sealing ring 16 is provided at the bottom of the mounting cavity 6. The sealing ring 16 is used to enhance the sealing performance of the connection and prevent media leakage during use.
[0025] During the heating process, the outer wall of the first pipe 1 and the inner wall of the second pipe 2 will melt. The molten plastic will cause the copper wires inside the heating coil 4 to move, which may lead to contact between adjacent copper wires and cause a short circuit. Furthermore, an insulating layer is provided on the heating coil 4. The insulating layer is sleeved on the copper wires of the heating coil 4. The insulating layer has thermal conductivity and heat resistance to ensure that the heating coil 4 will not short-circuit during use.
[0026] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.
Claims
1. A compression fitting type double-sided electrofusion connection pipe joint, comprising a first pipe (1) and a second pipe (2), wherein the outer diameter of the first pipe (1) is smaller than the inner diameter of the second pipe (2), characterized in that: A mounting ring (3) and a heating coil (4) are coaxially sleeved on the first pipe (1). The heating coil (4) is fixedly connected to the side wall of the mounting ring (3). A connecting ring (5) is coaxially fixed on the mounting ring (3). The diameter of the connecting ring (5) is larger than the diameter of the heating coil (4). An installation cavity (6) for placing the second pipe (2) is formed between the connecting ring (5) and the heating coil (4). A connection port (7) communicating with the heating coil (4) is provided on the outer surface of the connecting ring (5).
2. The compression fitting type double-sided electrofusion connection pipe joint as described in claim 1, characterized in that: The connecting ring (5) has a plurality of through grooves (8) arranged along its circumference. The through grooves (8) extend along the axial direction of the connecting ring (5) to the end of the connecting ring (5) away from the mounting ring (3). A fixing ring (9) is coaxially arranged on the outer surface of the connecting ring (5). The two ends of the fixing ring (9) are connected by a locking mechanism (10).
3. The compression fitting type double-sided electrofusion connection pipe joint as described in claim 2, characterized in that: The locking mechanism (10) includes a connecting block (11) disposed at one end of the fixed ring (9) and a connecting groove (12) disposed at the other end of the fixed ring (9). The connecting block (11) is provided with a first connecting tooth (13), and the connecting groove (12) is provided with a second connecting tooth (14). The first connecting tooth (13) and the second connecting tooth (14) are engaged and connected.
4. The compression fitting type double-sided electrofusion connection pipe joint as described in claim 3, characterized in that: The outer surface of the connecting ring (5) is provided with a plurality of fixing blocks (15) along its circumference, and the plurality of fixing blocks (15) and the connecting port (7) form a limiting space for placing the fixing ring (9).
5. The compression fitting type double-sided electrofusion connection pipe joint as described in claim 1, characterized in that: A sealing ring (16) is provided at the bottom of the mounting cavity (6).
6. The compression fitting type double-sided electrofusion connection pipe joint as described in claim 1, characterized in that: An insulating layer is provided on the heating coil (4).