A non-specified size corrugated pipe

Abstract

The utility model belongs to corrugated pipe technical field especially relates to a non fixed size corrugated pipe, include: corrugated pipe, pipe joint, pipe joint sets up in both ends of corrugated pipe, blocking piece, blocking piece sets up in the inside of corrugated pipe, and blocking piece includes mounting bracket and expansion block, is provided with first through -hole on mounting bracket, and first through -hole middle section is provided with installation cavity, and expansion block is tightly fitted in installation cavity, and expansion block is provided with second through -hole to first through -hole, wherein, expansion block meets the expansion of heat, and closes to corrugated pipe.

Description

Technical Field

[0001] This utility model belongs to the field of corrugated pipe technology, and in particular relates to a non-standard length corrugated pipe. Background Technology

[0002] Corrugated pipes mainly include metal corrugated pipes, corrugated expansion joints, corrugated heat exchange tubes, diaphragm boxes, and metal flexible hoses. Metal corrugated pipes are primarily used to compensate for pipeline thermal deformation, dampen vibrations, and absorb pipeline settlement deformation, and are widely used in industries such as petrochemicals, instrumentation, aerospace, chemicals, power, water conservancy, and metallurgy. Corrugated pipes made of plastics and other materials play an irreplaceable role in media transportation, power wiring, machine tools, and home appliances.

[0003] Existing corrugated pipes are usually single-pipe structures, which cannot effectively prevent combustion when exposed to open flames, leading to the risk of high-temperature ignition and explosion of the gas, which is extremely unsafe. Therefore, we have specially designed a non-standard length corrugated pipe. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a non-standard length corrugated pipe, thereby improving safety.

[0005] In view of this, the present invention provides a non-standard length corrugated pipe, comprising: Corrugated pipe; Pipe fittings are located at both ends of the corrugated pipe; The blocking component is disposed inside the bellows. The blocking component includes a mounting bracket and an expansion block. The mounting bracket is provided with a first through hole, and a mounting cavity is provided in the middle section of the first through hole. The expansion block is tightly fitted in the mounting cavity, and a second through hole is provided on the expansion block corresponding to the first through hole. The expansion block expands when heated and seals the bellows.

[0006] In the above technical solution, the expansion block further includes: The foreskin layer has a hollow cavity inside; Foaming material, the foaming material is placed inside the cavity; The second through hole is integrally formed on the outer skin layer.

[0007] In the above technical solution, furthermore, an injection hole is provided on the foreskin layer, and an adhesive strip is provided on the injection hole.

[0008] In the above technical solution, an overflow port is further provided on the wall of the mounting bracket at the mounting cavity, and part of the foaming material expands through the overflow port.

[0009] Furthermore, in the above technical solution, multiple blocking components are provided inside the corrugated pipe.

[0010] In the above technical solution, furthermore, the mounting brackets at both ends of the corrugated pipe are provided with limiting protrusions, which are locked between adjacent corrugated protrusions on the corrugated pipe. The remaining mounting brackets do not have limiting protrusions at both ends.

[0011] In the above technical solution, the mounting brackets at both ends of the corrugated pipe are made of rubber material, while the remaining mounting brackets inside the corrugated pipe are made of plastic material.

[0012] In the above technical solution, a plastic coating layer is further provided on the outer side of the corrugated pipe.

[0013] The beneficial effects of this utility model are: the combination of "non-standard length adaptability" and "heat-triggered automatic sealing" through the special structural design of the blocking component not only meets the usage requirements of pipes of different lengths, but also automatically seals the channel in hot situations, providing a safety protection function. Its structure is simple, easy to assemble, and responds precisely, making it suitable for fluid transportation scenarios requiring temperature-sensitive sealing functions, balancing practicality and safety. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of this utility model; Figure 3 This is a schematic diagram of the blocking component of this utility model without the limiting protrusion; The markings in the diagram represent: 1. Corrugated pipe; 2. Pipe fitting; 3. Blocking component; 31. Mounting bracket; 311. First through hole; 312. Overflow port; 32. Expansion block; 321. Sheath layer; 3211. Second through hole; 3212. Injection hole; 322. Foaming material; 4. Adhesive strip; 5. Limiting protrusion; 6. Plastic coating layer. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0016] Example 1: This embodiment provides a non-standard length corrugated pipe, including: Bellows 1; Pipe joint 2 is provided at both ends of the corrugated pipe 1; The blocking component 3 is disposed inside the bellows 1. The blocking component 3 includes a mounting bracket 31 and an expansion block 32. The mounting bracket 31 is provided with a first through hole 311 and a mounting cavity is provided in the middle section of the first through hole 311. The expansion block 32 is tightly fitted in the mounting cavity. The expansion block 32 is provided with a second through hole 3211 corresponding to the first through hole 311. The expansion block 32 expands when heated and seals the bellows 1.

[0017] As can be seen from this embodiment, a non-standard length corrugated pipe includes a corrugated pipe 1, a pipe joint 2, and a blocking element 3; The expansion block 32 expands automatically when heated, which can quickly seal the internal channels of the corrugated pipe 1 without manual intervention, and the sealing response is timely and reliable.

[0018] The blocking component 3 is independently installed inside the corrugated pipe 1, and is not limited by the length of the pipe. It can be flexibly adapted to corrugated pipes 1 of different non-standard length specifications, and has strong versatility.

[0019] The expansion block 32 fits tightly with the mounting cavity and maintains the gas flow in the bellows 1 through the first through hole 311 and the second through hole 3211. The overall structure is firmly assembled and does not affect the pipeline flow during normal use. It has a good sealing effect when closed.

[0020] The pipe fitting 2 and the blocking component 3 have a simple structural design and can be quickly assembled at both ends and inside of the corrugated pipe 1 without complicated tools, thus improving installation efficiency.

[0021] The combination of "non-standard length adaptability" and "heat-triggered automatic closure," through the special structural design of the blocking component 3, not only meets the usage requirements of pipes of different lengths but also automatically closes the channel in heated scenarios, providing a safety protection function. Its simple structure, convenient assembly, and precise response make it suitable for fluid transportation scenarios requiring temperature-sensitive closure functions, balancing practicality and safety.

[0022] Example 2: This embodiment provides a non-standard length corrugated pipe, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0023] The expansion block 32 includes: The foreskin layer 321 has a hollow cavity inside; Foaming material 322 is disposed inside the cavity; The second through hole 3211 is integrally formed on the outer skin layer 321.

[0024] As can be seen from this embodiment, the expansion block 32 includes a skin layer 321 and a foaming material 322; The outer layer 321 serves as the outer carrier, which not only fixes the position of the foam material 322, but also ensures the flow channel during normal use through the integrally formed second through hole 3211, thus preventing the foam material 322 from affecting fluid transmission.

[0025] The sheath layer 321 can flexibly adapt to the size of the installation cavity, and is not easily deformed during tight installation. The second through hole 3211 corresponds precisely to the first through hole 311, ensuring smooth pipe flow after assembly.

[0026] The foam material 322 inside the cavity can expand rapidly when heated, and the cavity structure provides sufficient expansion space for the foam material 322, which can maximize the filling of the inside of the pipe and achieve a thorough sealing effect.

[0027] The expansion block 32 solves the functional balance between "normal flow" and "heat-sealing" through the composite design of "encasing foam material 322 with skin layer 321". At the same time, the skin layer 321 ensures the structural formability and stability of the flow channel, while the foam material 322 provides efficient thermal expansion sealing capability. The integrally formed second through hole 3211 further simplifies the assembly process and ensures smooth flow.

[0028] With a simple overall structure and focused functions, it can accurately match the usage requirements of the blocking component 3, and greatly improve the reliability and practicality of the thermal trigger sealing function of the non-standard length corrugated pipe.

[0029] Example 3: This embodiment provides a non-standard length corrugated pipe, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0030] An injection hole 3212 is provided on the foreskin layer 321, and an adhesive strip 4 is provided on the injection hole 3212.

[0031] As can be seen from this embodiment, the injection hole 3212 provides a precise channel for the foam material 322 to be injected into the cavity, and the filling can be completed without disassembling the outer skin layer 321, which simplifies the production process and improves assembly efficiency. Furthermore, the adhesive strip 4 seals the injection hole 3212, which can effectively prevent external impurities and moisture from entering the cavity, avoid the foaming material 322 from getting damp, contaminated or degraded, and ensure the long-term stability of the expansion block 32.

[0032] The injection hole 3212 solves the problem of efficient filling of foam material 322, while the adhesive strip 4 achieves reliable sealing after filling. The combination of the two simplifies the production process, reduces the processing difficulty, protects the performance of foam material 322, and ensures the smooth realization of thermal expansion sealing function, further improving the structural rationality and reliability of expansion block 32.

[0033] Example 4: This embodiment provides a non-standard length corrugated pipe, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0034] An overflow port 312 is provided on the wall of the mounting bracket 31 in the mounting cavity, and part of the foam material 322 expands through the overflow port 312.

[0035] As can be seen from this embodiment, when the foam material 322 expands when heated, part of it overflows outward through the overflow port 312, which can fill the gap between the mounting bracket 31 and the inner wall of the corrugated pipe 1, forming a double seal of "internal sealing and gap filling", making the seal more thorough and without dead corners.

[0036] The overflow port 312 only functions when the foam material 322 expands. During normal use, it is completely blocked by the expansion block 32 and does not interfere with the fluid transmission between the first through hole 311 and the second through hole 3211, nor does it affect the original flow function of the pipeline.

[0037] Example 5: This embodiment provides a non-standard length corrugated pipe, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0038] Multiple blocking components 3 are installed inside the bellows 1.

[0039] As can be seen from this embodiment, multiple blocking elements 3 are distributed along the bellows 1. When heated, they can be triggered to expand and seal simultaneously or sequentially from different positions, forming multiple barriers and quickly cutting off the flow path of the entire pipeline. Compared with a single blocking element 3, the sealing is faster and more thorough. Furthermore, redundant protection is achieved to reduce the risk of failure. Even if individual blocking components 3 fail due to material differences, installation deviations, or other reasons, the remaining blocking components 3 can still function normally, avoiding the failure of the overall sealing function due to a single point of failure and greatly improving the fault tolerance of the system.

[0040] Example 6: This embodiment provides a non-standard length corrugated pipe, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0041] The mounting bracket 31 located at both ends of the bellows 1 is provided with limiting protrusions 5 at both ends, and the limiting protrusions 5 are locked between adjacent bellows protrusions on the bellows 1. Among them, the remaining mounting brackets 31 do not have limiting protrusions 5 at both ends.

[0042] As can be seen from this embodiment, the limiting protrusions 5 of the two end blocking members 3 are locked between the adjacent corrugated protrusions of the corrugated pipe 1, which can firmly fix its position at the pipe port, thereby locking the multiple blocking members 3 located inside the corrugated pipe 1.

[0043] The differentiated limiting design does not rely on the fixed length of the pipe for positioning. Assembly can be completed by corrugated protrusions at both ends. The middle blocking component 3 can be flexibly distributed according to the actual length of the non-standard pipe, improving installation adaptability.

[0044] Example 7: This embodiment provides a non-standard length corrugated pipe, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0045] The mounting brackets 31 at both ends of the corrugated pipe 1 are made of rubber material, while the other mounting brackets 31 inside the corrugated pipe 1 are made of plastic material.

[0046] As can be seen from this embodiment, the rubber mounting brackets 31 at both ends have good elasticity and fit, which can fit tightly to the port of the corrugated pipe 1 and the pipe joint 2, reduce gaps, and improve the sealing performance of the pipe end; the flexibility of the rubber can also adapt to slight deformation during installation, reducing the difficulty of assembly.

[0047] The intermediate plastic mounting bracket 31 has high mechanical strength and good structural rigidity, which can provide a stable installation support for the expansion block 32, prevent the mounting bracket 31 from deforming due to expansion force when heated, ensure the precise expansion direction of the foam material 322, and guarantee the sealing reliability of the intermediate blocking component 3.

[0048] Example 8: This embodiment provides a non-standard length corrugated pipe, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0049] A plastic coating layer 6 is provided on the outside of the corrugated pipe 1.

[0050] As can be seen from this embodiment, the plastic coating layer 6 on the outside of the corrugated pipe 1 provides multiple protections for the pipeline, including protection, insulation and structural reinforcement, while not affecting the heat-triggered sealing function of the internal blocking component 3, thus improving the environmental adaptability and service life of the pipeline.

[0051] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A non-standard length corrugated pipe, characterized in that it comprises: Bellows (1); Pipe fittings (2), which are provided at both ends of the corrugated pipe (1); The blocking component (3) is disposed inside the bellows (1). The blocking component (3) includes a mounting bracket (31) and an expansion block (32). The mounting bracket (31) is provided with a first through hole (311), and a mounting cavity is provided in the middle section of the first through hole (311). The expansion block (32) is tightly fitted in the mounting cavity. The expansion block (32) is provided with a second through hole (3211) corresponding to the first through hole (311). The expansion block (32) expands when heated and seals the bellows (1).

2. A non-standard length corrugated pipe according to claim 1, characterized in that, The expansion block (32) includes: The foreskin layer (321) has a hollow cavity inside; Foaming material (322), wherein the foaming material (322) is disposed within the cavity; The second through hole (3211) is integrally formed on the outer skin layer (321).

3. A non-standard length corrugated pipe according to claim 2, characterized in that, An injection hole (3212) is provided on the foreskin layer (321), and an adhesive strip (4) is provided on the injection hole (3212).

4. A non-standard length corrugated pipe according to claim 3, characterized in that, An overflow port (312) is provided on the wall of the mounting bracket (31) at the mounting cavity, and part of the foam material (322) expands through the overflow port (312).

5. A non-standard length corrugated pipe according to claim 4, characterized in that, The bellows (1) is provided with multiple blocking components (3).

6. A non-standard length corrugated pipe according to claim 5, characterized in that, in the presence of The mounting bracket (31) at both ends of the corrugated pipe (1) is provided with limiting protrusions (5), which are engaged between adjacent corrugated protrusions on the corrugated pipe (1). Of these, the remaining mounting brackets (31) do not have limiting protrusions (5) at both ends.

7. A non-standard length corrugated pipe according to claim 6, characterized in that, in the presence of The mounting brackets (31) at both ends of the corrugated pipe (1) are made of rubber material, while the remaining mounting brackets (31) inside the corrugated pipe (1) are made of plastic material.

8. A non-standard length corrugated pipe according to claim 1, characterized in that, The corrugated pipe (1) is provided with a plastic coating layer (6) on the outside.

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