Pressure-resistant corrugated pipe interface hot melt structure

Abstract

The utility model discloses a kind of pressure-resistant corrugated pipe interface hot melt type structures, including corrugated pipe body and connecting pipe etc., and between connecting pipe and external container port, hot melt pipe is additionally formed by adding to form hot melt connection to reconstruct connection structure, the hot melt pipe includes integrally-formed cylindrical pipe and cone pipe, and the interface between cylindrical pipe and the external interface of connecting pipe is connected by detachable pipe clamp clamping, the external conical surface of cone pipe is equipped with the differentiated hot melt conical surface area formed by different taper, and by the hot melt conical surface area after heating softening, different specifications of external container port can be adapted to form hot melt connection;In this way, compared with the mechanical fixing mode of flange plate and bolt in traditional flange connection structure, first, hot melt conical surface area can form deformable connection interface, so it can have more flexible and excellent interface adaptability, second, quick clamping connection is realized by pipe clamp, with the use advantage of high dismounting efficiency.

Description

Technical Field

[0001] This utility model relates to a heat-fusion structure, specifically a heat-fusion structure for a pressure-resistant corrugated pipe interface. Background Technology

[0002] Currently, the structure of pressure-resistant bellows mainly consists of a bellows body and a connecting pipe at the end of the bellows body. The connection is formed by a flange designed at the external interface of the connecting pipe and a flange designed at the external container port, which are sealed together and then fixed by multiple circumferential bolts. This connection structure has several defects in actual use. First, the interface compatibility is poor. Because the flange needs to be designed with a fixed outer diameter, it can only match standard flanges of the same specification. In specific working conditions, such as non-standard equipment or reducing pipe connection scenarios, there is insufficient adaptability. Second, the disassembly and assembly efficiency is low. For example, a typical DN50 flange requires 12 sets of M12 bolts. Operators need to use special tools to disassemble and assemble each set, which seriously affects the work efficiency during equipment maintenance or emergency repairs. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a heat-fusion structure for a pressure-resistant corrugated pipe interface that is flexible in interface adaptability and has high disassembly and assembly efficiency.

[0004] The technical problem of this utility model is solved by the following technical solution:

[0005] A pressure-resistant corrugated pipe interface heat-fusion structure includes a corrugated pipe body and a connecting pipe disposed at the end of the corrugated pipe body, and also includes a heat-fusion pipe. The heat-fusion pipe comprises an integrally formed cylindrical pipe and a conical pipe. The interface of the cylindrical pipe is clamped to the outer interface of the connecting pipe by a detachable pipe clamp. The outer conical surface of the conical pipe is provided with differentiated heat-fusion conical surface regions formed by different tapers. After being heated and softened, the heat-fusion conical surface regions are adapted to the ports of external containers of different specifications and form a heat-fusion connection.

[0006] The outer interface of the connecting pipe is provided with a radially protruding outer connecting cam, and the interface of the cylindrical pipe is provided with a radially protruding inner connecting cam. The inner and outer connecting cams are sealed and fitted together by the end faces of each other and are clamped and connected by a pipe clamp.

[0007] The outer interface of the connecting pipe is provided with a radially protruding outer connecting cam, and the interface of the cylindrical pipe is provided with a fitting pipe extending coaxially. The outer circumferential surface of the fitting pipe is provided with a radially protruding inner connecting cam. The fitting pipe is inserted into the outer interface of the connecting pipe, and the inner and outer connecting cams are sealed and fitted together by the pipe clamp.

[0008] The pipe clamp is a double C-type clamp with a pre-reserved clamping groove between the double C-types. After the inner and outer connecting cams are sealed and fitted together, they are fastened by the pipe clamp, and the inner and outer connecting cams are simultaneously tightly fitted in the clamping groove to form a clamping connection.

[0009] The inner connecting cam and the outer connecting cam have the same outer diameter.

[0010] The cylindrical tube and the conical tube are coaxially arranged.

[0011] A coaxial limiting ring is provided between the cylindrical tube and the conical tube.

[0012] The connecting pipe is a straight pipe, a bent pipe, or a multi-port pipe with at least three interfaces.

[0013] The inner interface of the connecting pipe is heat-fused to the end of the corrugated pipe body.

[0014] The corrugated pipe body is manufactured using a blow molding process, while the connecting pipe is manufactured using an injection molding process.

[0015] Compared with existing technologies, the main improvement of this invention is the addition of a heat-fusion pipe as a connecting component to the structure of the pressure-resistant corrugated pipe. This heat-fusion pipe connects the connecting pipe of the pressure-resistant corrugated pipe to the external container port, thus reconstructing the connection structure. The heat-fusion pipe comprises an integrally formed cylindrical pipe and a conical pipe. The interface of the cylindrical pipe is clamped to the external interface of the connecting pipe using a detachable pipe clamp. The outer conical surface of the conical pipe has differentiated heat-fusion conical surface areas with varying tapers. These areas, after being heated and softened, can be adapted to different specifications of external container ports to form a heat-fusion connection. Therefore, compared to the mechanical fixing method of flanges and bolts in traditional flange connections, the improved structure offers two advantages: firstly, the heat-fusion conical surface area can form a deformable connection interface, resulting in greater flexibility and better interface adaptability; secondly, the quick clamping connection achieved through the pipe clamp provides high assembly and disassembly efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 for Figure 1 Sectional view A-A (without fitting tubes designed).

[0018] Figure 3 for Figure 1 A three-dimensional image.

[0019] Figure 4 for Figure 3 A three-dimensional exploded view.

[0020] Figure 5 for Figure 1Sectional view A-A (designed with insertion tube).

[0021] Figure 6 for Figure 5 A three-dimensional exploded view. Detailed Implementation

[0022] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] like Figures 1-6 As shown, 1. Corrugated pipe body, 2. Connecting pipe, 21. External connecting cam, 3. Hot melt pipe, 31. Cylindrical pipe, 311. Internal connecting cam, 312. Inserting pipe, 32. Conical pipe, 321. Hot melt conical surface area, 33. Limiting ring, 4. Pipe clamp, 41. Clamping groove. The same labels in each figure represent the same parts.

[0024] A pressure-resistant bellows joint heat-fusion structure, such as Figure 1 As shown, this invention mainly relates to a pipe component that can be thermally fused to an external container port (not shown in the figure). Its structure includes a corrugated pipe body 1 and a connecting pipe 2 disposed at the end of the corrugated pipe body. In this embodiment, connecting pipes 2 are respectively provided at both ends of the corrugated pipe body 1, and a thermal fusion pipe 3 is provided at the connecting pipe at each end. Since the structures at both ends are exactly the same, this embodiment only describes the structure at one end as an example.

[0025] The hot melt tube 3 comprises an integrally formed cylindrical tube 31 and a conical tube 32, and the cylindrical tube 31 and the conical tube 32 are coaxially arranged, that is, on the same axis. A coaxially designed limiting ring 33 is also provided between the cylindrical tube 31 and the conical tube 32. The limiting ring mainly serves as the dividing line between the cylindrical tube 31 and the conical tube 32, and is used to limit the heat-meltable length of the conical tube 32.

[0026] The corrugated pipe body 1 is manufactured by blow molding and can be stretched to release stress according to the pipeline pressure. For example, it can cope with the pressure expansion of the external container to avoid damage to the connection.

[0027] The connecting pipe 2 is manufactured by injection molding. The inner interface of the connecting pipe, that is, the interface of the adjacent corrugated pipe body 1, is heat-fused to the end of the corrugated pipe body 1. For example, it can be fused together by extrusion heat-fusion composite process. The outer interface of the connecting pipe, that is, the interface away from the corrugated pipe body 1 and adjacent to the heat-fused pipe 3, is clamped to the interface of the cylindrical pipe 31 by a detachable pipe clamp 4.

[0028] This embodiment employs two connection structures, one of which is as follows: Figure 2 , Figure 4As shown, the outer interface of the connecting pipe 2 is provided with a radially protruding disc-shaped outer connecting cam 21, and the interface of the cylindrical pipe 31 is provided with a radially protruding disc-shaped inner connecting cam 311. The outer diameter of the inner connecting cam and the outer connecting cam must be designed to be the same. The pipe clamp 4 is a metal double C-shaped clamp, and a clamping groove 41 is reserved between the double C-shaped parts of the pipe clamp. Then, after the inner and outer connecting cams are sealed and fitted together, they can be clamped together by the pipe clamp 4 and the inner and outer connecting cams are simultaneously tightly fitted in the clamping groove 41 to form a clamping connection. This structure is usually suitable for connections with low internal pressure.

[0029] Another one is like Figure 5 , Figure 6 As shown, the outer interface of the connecting pipe 2 is provided with a radially protruding, disc-shaped outer connecting cam 21, and the interface of the cylindrical pipe 31 is provided with a coaxially extending fitting pipe 312. The outer circumferential surface of the fitting pipe is provided with a radially protruding, disc-shaped inner connecting cam 311. The outer diameter of the inner connecting cam and the outer connecting cam must be designed to be the same. The fitting pipe 312 is simply inserted into the outer interface of the connecting pipe 2. Usually, the outer diameter of the fitting pipe 312 is designed to be slightly smaller than the inner diameter of the outer interface of the connecting pipe 2 so that the inner and outer connecting cams can be sealed and fitted together at their end faces. Then, the pipe clamp 4 can be used to clamp and connect them. This structure is usually suitable for connections with high internal pressure.

[0030] The sealing and fitting structure of the inner and outer connecting cams can be configured in various ways. For example, a sealing ring groove can be designed on the end face, or a sealing ring can be placed directly between the two end faces. The quick-clamping connection formed by the pipe clamp 4 has advantages such as fast connection and high assembly / disassembly efficiency compared to the mechanical fixing method of flange and bolt in the traditional flange connection structure.

[0031] The outer conical surface of the conical tube 32 is provided with differentiated hot-melt conical surface regions 321 formed by different tapers. After being heated and softened, these hot-melt conical surface regions can be adapted to external container ports of different specifications and form a hot-melt connection. Since the hot-melt conical surface region 321 can form a deformable connection interface, it has more flexible and better interface adaptability compared to the mechanical fixing method of flange and bolt in the traditional flange connection structure.

[0032] Meanwhile, the connecting pipe 2 can be a straight pipe, a bend, or a multi-port pipe with at least three interfaces, as in this embodiment, for example... Figure 2 The diagram shows the use of a straight pipe, which, whether straight or bent, has two interfaces. One interface connects to the end of the corrugated pipe body 1, and the other interface connects to the heat fusion pipe 3. When a multi-port pipe is used for the connection, one interface still connects to the end of the corrugated pipe body 1, but the remaining interfaces can each be configured with a heat fusion pipe 3. In this way, multiple heat fusion pipes with multiple interfaces can be heat-fused to multiple external container ports to form a combined structure.

[0033] In addition, this utility model is formed by combining a corrugated pipe body 1, a connecting pipe 2 and a hot-melt pipe 3 by hot-melting. The hot-melt pipe is then connected to the port of the external container by hot-melting through a conical pipe 32. Therefore, in actual use, the corrugated pipe body 1, the connecting pipe 2 and the hot-melt pipe 3 can all be made of the same material as the external container to ensure that their lifespans are consistent with those of the external container.

[0034] The basic principles and main features of this utility model have been described above. Those skilled in the art should understand that this utility model is not limited to the above embodiments. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the utility model as claimed. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pressure-resistant corrugated pipe interface heat-fusion structure, comprising a corrugated pipe body (1) and a connecting pipe (2) disposed at the end of the corrugated pipe body, characterized in that, It also includes heat-fusion tubes (3). The hot melt tube (3) comprises an integrally formed cylindrical tube (31) and a conical tube (32). The interface of the cylindrical tube (31) is clamped to the outer interface of the connecting tube (2) by a detachable tube clamp (4). The outer conical surface of the conical tube (32) is provided with a differentiated hot melt conical surface area (321) formed by different tapers. After the hot melt conical surface area is heated and softened, it is adapted to the port of the external container of different specifications and forms a hot melt connection.

2. The pressure-resistant corrugated pipe interface heat-fusion structure according to claim 1, characterized in that, The outer interface of the connecting pipe (2) is provided with a radially protruding outer connecting cam (21), and the interface of the cylindrical pipe (31) is provided with a radially protruding inner connecting cam (311). The inner and outer connecting cams are sealed and connected by a pipe clamp (4).

3. The pressure-resistant corrugated pipe interface heat-fusion structure according to claim 1, characterized in that, The outer interface of the connecting pipe (2) is provided with a radially protruding outer connecting cam (21), and the interface of the cylindrical pipe (31) is provided with a coaxially extended fitting pipe (312). The outer circumferential surface of the fitting pipe is provided with a radially protruding inner connecting cam (311). The fitting pipe is inserted into the outer interface of the connecting pipe (2), and the inner and outer connecting cams are sealed and fitted together by the pipe clamp (4) and then clamped and connected.

4. A pressure-resistant corrugated pipe interface heat-fusion structure according to claim 2 or 3, characterized in that, The pipe clamp (4) is a double C-type clamp. A clamping groove (41) is reserved between the double C-types of the pipe clamp. After the inner and outer connecting cams are sealed and fitted together, they are fastened by the pipe clamp (4), and the inner and outer connecting cams are simultaneously tightly fitted in the clamping groove (41) to form a clamping connection.

5. A pressure-resistant corrugated pipe interface heat-fusion structure according to claim 2 or 3, characterized in that, The inner connecting cam (311) has the same outer diameter as the outer connecting cam (21).

6. The pressure-resistant corrugated pipe interface heat-fusion structure according to claim 1, characterized in that, The cylindrical tube (31) and the conical tube (32) are coaxially arranged.

7. The pressure-resistant corrugated pipe interface heat-fusion structure according to claim 1, characterized in that, A limiting ring (33) with a coaxial design is provided between the cylindrical tube (31) and the conical tube (32).

8. The pressure-resistant corrugated pipe interface heat-fusion structure according to claim 1, characterized in that, The connecting pipe (2) is a straight pipe, a bent pipe, or a multi-port pipe with at least three ports.

9. The pressure-resistant corrugated pipe interface heat-fusion structure according to claim 1, characterized in that, The inner interface of the connecting pipe (2) is heat-fused to the end of the corrugated pipe body (1).

10. The pressure-resistant corrugated pipe interface heat-fusion structure according to claim 1, characterized in that, The corrugated pipe body (1) is made by blow molding, and the connecting pipe (2) is made by injection molding.

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