Composite pipe for water heating

Abstract

The utility model relates to a composite pipe for water heating, which comprises an inner pipe body, a pipeline for liquid flow formed inside; an outer pipe body coaxially arranged outside the inner pipe body, and a buffer space formed between the inner pipe body and the outer pipe body; a pressure relief structure arranged in the buffer space and connected between the inner pipe body and the outer pipe body for reducing the force transmitted from the outer pipe body to the inner pipe body. When an external force hits the outer pipe body, the buffer space first allows the outer pipe body to have a certain displacement space, reducing the initial impact force. At the same time, the pressure relief structure immediately comes into play to gradually eliminate and reduce the external force. After the treatment of the pressure relief structure, the force transmitted to the inner pipe body is greatly reduced, ensuring that the inner pipe body will not be subjected to severe impact, thereby effectively preventing the inner pipe body from being damaged and ensuring that the overall conveying function of the water heating pipe is not affected.

Description

Technical Field

[0001] This utility model relates to the field of pipe technology, and in particular to composite pipes for plumbing. Background Technology

[0002] In today's construction and plumbing engineering field, plumbing pipes are widely used, affecting all aspects of people's lives, from residential homes to commercial buildings, and they play an important role in transporting fluid media.

[0003] Most existing plumbing pipes are installed and used in an exposed state. While this exposed installation method is convenient for construction in some cases, it brings a series of serious drawbacks. Because plumbing pipes are widely distributed in the building environment and are located in complex spaces, they inevitably face various complex situations. Among them, susceptibility to external impacts is a prominent and widespread problem.

[0004] On construction sites, various construction equipment and tools are frequently hoisted and operated, and building materials are piled and moved haphazardly. A slight mishap could cause heavy objects to collide with exposed plumbing pipes. Even after the building is in use, daily renovation activities, furniture moving, and personnel movement can still accidentally bump into plumbing pipes. For example, renovation workers might accidentally drop tools onto plumbing pipes while hammering or knocking inside; or homeowners might have the edges of large furniture scrape against the pipes while moving them. Utility Model Content

[0005] (a) Technical problems to be solved In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a composite pipe for plumbing, which solves the technical problem that the existing plumbing pipes are in an exposed state and are easily damaged by external impact.

[0006] (II) Technical Solution To achieve the above objectives, the main technical solutions adopted by this utility model include: This utility model provides a composite pipe for plumbing.

[0007] The composite pipe for plumbing proposed in this embodiment includes: The inner tube body has internal conduits for liquid flow. The outer tube body is coaxially disposed outside the inner tube body, and a buffer space is formed between the inner tube body and the outer tube body; The pressure-reducing structure is located within the buffer space and is connected between the inner tube body and the outer tube body respectively, in order to reduce the force transmitted from the outer tube body to the inner tube body.

[0008] Optionally, the pressure-relief structure includes: The collar is coaxially fitted onto the inner tube body; The support components are arranged in a ring at equal intervals on the collar, and are slidably connected to the outer tube body.

[0009] Optionally, the collar has an opening.

[0010] Optionally, an annular groove is formed on the outer wall of the inner tube body, and the collar is engaged with the annular groove.

[0011] Optionally, a limiting groove is formed on the inner wall of the outer tube body, and the support is slidably installed in the limiting groove.

[0012] Optionally, there are at least three supports, and the supports are vertically installed between the collar and the outer tube body.

[0013] Optionally, a sealing cap is coaxially sleeved on the inner tube body and connected to the port of the outer tube body to seal the buffer space.

[0014] Optionally, it also includes: The vacuum port is located on the sealing cap and is connected to the buffer space. It is used to create a vacuum space in the buffer space when the vacuum port is connected to an external vacuum pumping device.

[0015] Optionally, it also includes: A sealing ring is placed between the sealing cap and the inner tube body.

[0016] (III) Beneficial Effects The beneficial effects of this utility model are as follows: The composite pipe for plumbing provided by this utility model includes an inner pipe body, an outer pipe body, and a pressure-reducing structure. In actual use, when an external force impacts the outer pipe body, the buffer space first allows the outer pipe body to have a certain displacement space, reducing the initial impact force. At the same time, the pressure-reducing structure immediately takes effect, dissipating and mitigating the external force layer by layer. After the treatment of the pressure-reducing structure, the force transmitted to the inner pipe body has been greatly reduced, ensuring that the inner pipe body will not be subjected to severe impact, thereby effectively avoiding damage to the inner pipe body and ensuring that the overall conveying function of the plumbing pipe is not affected. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the composite pipe for plumbing according to this utility model; Figure 2 This is a three-dimensional cross-sectional view of the composite pipe material for plumbing of this utility model. Figure 3 This is a three-dimensional structural diagram of the outer tube body of this utility model; Figure 4 This is a three-dimensional structural diagram of the inner tube body of this utility model; Figure 5 This is a three-dimensional structural diagram of the pressure-relieving structure of this utility model.

[0018] [Explanation of Labels in the Attached Image] 100-Inner tube body, 200-Outer tube body, 300-Pressure relief structure, 400-Sealing cap, 500-Vacuum port, 600-Sealing ring; 310 - Collar, 320 - Support component; 101-Buffer space, 102-Annular slot, 201-Limiting slide. Detailed Implementation

[0019] To better explain and facilitate understanding of this utility model, a detailed description of its specific embodiments is provided below with reference to the accompanying drawings. In this document, directional terms such as "upper," "lower," etc., are used interchangeably with other directional terms. Figure 1 The orientation is used as a reference.

[0020] Exemplary embodiments of the present invention will be described in more detail below. While exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the full scope of the present invention can be conveyed to those skilled in the art.

[0021] like Figures 1 to 5 As shown, this embodiment proposes a composite pipe for plumbing, including: an inner pipe body 100, with a pipe for liquid flow formed inside; an outer pipe body 200, coaxially disposed outside the inner pipe body 100, and a buffer space 101 is formed between the inner pipe body 100 and the outer pipe body 200; and a pressure-reducing structure 300, disposed in the buffer space 101, and connected to the inner pipe body 100 and the outer pipe body 200 respectively, for reducing the force transmitted from the outer pipe body 200 to the inner pipe body 100.

[0022] The composite pipe for plumbing provided in this embodiment includes an inner pipe body 100, an outer pipe body 200, and a pressure-reducing structure 300. The inner pipe body 100 is the core component of the entire composite pipe that enables basic transport functions. It has a dedicated pipeline for liquid flow inside. This pipeline not only has a smooth inner wall to ensure that the liquid can flow smoothly and without obstruction, reducing flow resistance, but also has good compatibility with various plumbing equipment and interfaces, and can be smoothly connected to the entire plumbing system to undertake the important task of transporting water or other fluid media. The outer tube body 200 is coaxially arranged outside the inner tube body 100, closely surrounding the inner tube body 100, forming the first physical barrier to it. The coaxial arrangement ensures that the overall structure of the pipe is subjected to uniform force in the circumferential direction, improving the stability of the pipe when subjected to external pressure and impact. Moreover, a buffer space 101 is reserved between the inner tube body 100 and the outer tube body 200, which provides the necessary physical space for the pressure relief structure 300 to function, and also provides room for compressible deformation when buffering external impact, reducing the transmission of impact energy to the inner tube body 100.

[0023] The pressure-reducing structure 300 is located within the buffer space 101 and is connected to both the inner pipe body 100 and the outer pipe body 200. When the outer pipe body 200 is subjected to an external impact force, the pressure-reducing structure 300 functions to reduce the force transmitted from the outer pipe body 200 to the inner pipe body 100. In actual use, when an external force impacts the outer pipe body 200, the buffer space 101 first allows the outer pipe body 200 a certain displacement space to reduce the initial impact force. At the same time, the pressure-reducing structure 300 immediately takes effect, dissipating and reducing the external force layer by layer. After being processed by the pressure-reducing structure 300, the force transmitted to the inner pipe body 100 is greatly reduced, ensuring that the inner pipe body 100 is not subjected to severe impact, thereby effectively preventing damage to the inner pipe body 100 and ensuring that the overall conveying function of the plumbing pipe is not affected.

[0024] Through the coordinated operation of the inner pipe body 100, the outer pipe body 200, and the pressure-reducing structure 300, the composite pipe successfully solves the problem of existing plumbing pipes being easily damaged by external impacts, greatly improving the reliability and safety of plumbing pipes in complex usage environments, and providing a strong guarantee for the stable operation of building plumbing systems.

[0025] like Figure 2 and Figure 5 As shown, in some examples, the pressure relief structure 300 includes: a collar 310, coaxially sleeved on the inner tube body 100; and support members 320, circumferentially and equidistantly arranged on the collar 310. There are at least three support members 320, and the support members 320 are vertically installed between the collar 310 and the outer tube body 200, and the support members 320 are slidably connected to the outer tube body 200.

[0026] In this technical solution, the collar 310 is coaxially sleeved on the inner tube body 100. The coaxial arrangement ensures that the position of the collar 310 and the inner tube body 100 is relatively stable, thereby ensuring that the force from the outer tube body 200 can be evenly distributed when it is impacted, and avoiding excessive local force from damaging the inner tube body 100.

[0027] The support members 320 are arranged in a ring-shaped, equidistant manner on the collar 310. This ring-shaped arrangement allows the support members 320 to apply support force to the outer tube body 200 from all directions, ensuring uniform buffering protection along the circumference of the tube. The equidistant distribution ensures a uniform distribution of support force on the outer tube body 200, avoiding uneven buffering effects due to excessive or insufficient local support force. The support members 320 are slidably connected to the outer tube body 200, allowing for easy installation of the support members 320 on the outer tube body 100 without axial rotation, thus improving its stability.

[0028] like Figure 2 and Figure 4 As shown, in some examples, an annular groove 102 is formed on the outer wall of the inner tube body 100, and a collar 310 is engaged with the annular groove 102, and an opening is provided on the collar 310.

[0029] In this technical solution, an annular groove 102 is formed on the outer wall of the inner tube body 100, surrounding the inner tube body 100. This allows the inner tube body 100 to be uniformly stressed in the circumferential direction. The presence of the annular groove 102 provides a precise positioning and fixing foundation for the collar 310. It limits the position of the collar 310, ensuring that the collar 310 will not move arbitrarily on the outer wall of the inner tube body 100 when subjected to external impact. This provides a stable prerequisite for the subsequent pressure-relief structure 300 to effectively play its buffering role. The collar 310 is engaged with the annular groove 102, and the engagement between the two is highly precise. The shape and size of the collar 310 and the annular groove 102 are set to ensure that the collar 310 is firmly engaged in the annular groove 102, effectively preventing the collar 310 from loosening or falling off the inner tube body 100. The collar 310 is provided with an opening, which allows the collar 310 to be easily installed on the inner tube body 100.

[0030] The robust snap-fit ​​connection provides an important guarantee for the functional realization of the pressure relief structure 300. When the outer tube body 200 is subjected to an impact force and transmits it to the support member 320, and then to the collar 310, the collar 310, because it is snapped into the annular groove 102, can stably transmit the impact force to the overall structure of the inner tube body 100 for dispersion.

[0031] like Figure 2 and Figure 3As shown, in some instances, the inner wall of the outer tube body 200 forms a limiting groove 201, and the support member 320 is slidably installed in the limiting groove 201.

[0032] In this technical solution, the limiting groove 201 is formed on the inner wall of the outer tube body 200 and distributed along the circumferential direction of the inner wall of the outer tube body 200. Its shape is adapted to the sliding fit part of the support member 320. The limiting groove 201 mainly undertakes two important functions. During the installation process, the limiting groove 201 provides a clear sliding trajectory for the support member 320 and specifies that the movement direction of the support member 320 can only be along the direction of extension of the limiting groove 201. It restricts the rotation range of the support member 320 to a certain extent. First, the collar 310 is sleeved on the annular groove 102 through the opening, and then the support member 320 is slidably installed on the limiting groove 201, thereby realizing the quick and convenient sliding installation of the inner tube body 100 inside the outer tube body 200 and restricting the relative fixation between the inner tube body 100 and the outer tube body 200.

[0033] like Figure 1 As shown, in some examples, it also includes: a sealing cap 400, coaxially sleeved on the inner tube body 100, the sealing cap 400 being connected to the port of the outer tube body 200, for sealing the buffer space 101; a vacuum port 500, disposed on the sealing cap 400 and communicating with the buffer space 101, for forming a vacuum space in the buffer space 101 when the vacuum port 500 is connected to an external vacuum pumping device; and a sealing ring 600, disposed between the sealing cap 400 and the inner tube body 100.

[0034] In this technical solution, the sealing cap 400 is coaxially sleeved on the inner tube body 100, making the sealing cap 400 evenly distributed on the inner tube body 100. This avoids problems such as decreased sealing performance or unstable mechanical properties caused by eccentricity. At the same time, the sealing cap 400 is connected to the port of the outer tube body 200, so that the sealing cap 400 can effectively seal the buffer space 101, forming a relatively independent and sealed area. Its main function is to seal the buffer space 101 and isolate the buffer area from the outside world. On the one hand, it prevents external moisture, dust and other debris from entering the buffer space 101, avoiding these impurities from affecting the buffer structure, ensuring that the buffer structure can work normally and extending its service life. On the other hand, it maintains the stability of the internal environment of the buffer space 101, which may be used in special environments (such as vacuum environments) to enhance the buffering effect.

[0035] A vacuum port 500 is located on the sealing cap 400 and communicates with the buffer space 101. The buffer space 101, sealed by the sealing cap 400, has a channel for connection with external vacuum equipment. When the vacuum port 500 is connected to the external vacuum equipment, the buffer space 101 can form a vacuum space. When the buffer space 101 is in a vacuum state, the air resistance experienced by the pressure-relief structure 300 during operation will be significantly reduced, which will allow the support member 320 to slide more flexibly within the limiting groove 201 of the outer tube body 200, thereby improving the buffering efficiency. The sealing ring 600 is located between the sealing cap 400 and the inner tube body 100, and plays the role of filling the gap and strengthening the seal. It further enhances the sealing performance between the sealing cap 400 and the inner tube body 100, and ensures the stability of the vacuum space.

[0036] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0038] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0040] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A composite pipe for plumbing, characterized in that, include: The inner tube body (100) has a pipe for liquid flow inside; The outer tube body (200) is coaxially disposed outside the inner tube body (100), and a buffer space (101) is formed between the inner tube body (100) and the outer tube body (200). A pressure-relief structure (300) is disposed within the buffer space (101) and is connected between the inner tube body (100) and the outer tube body (200) respectively, for reducing the force transmitted from the outer tube body (200) to the inner tube body (100).

2. The composite pipe for plumbing as described in claim 1, characterized in that, The pressure-relief structure (300) includes: A collar (310) is coaxially sleeved on the inner tube body (100); The support member (320) is equidistantly arranged on the collar (310) in a ring, and the support member (320) is slidably connected to the outer tube body (200).

3. The composite pipe for plumbing as described in claim 2, characterized in that: The collar (310) has an opening.

4. The composite pipe for plumbing as described in claim 2, characterized in that: An annular groove (102) is formed on the outer wall of the inner tube body (100), and the collar (310) is engaged in the annular groove (102).

5. The composite pipe for plumbing as described in claim 2, characterized in that: The inner wall of the outer tube body (200) forms a limiting groove (201), and the support member (320) is slidably installed in the limiting groove (201).

6. The composite pipe for plumbing as described in claim 2, characterized in that: There are at least three support members (320), and the support members (320) are vertically installed between the collar (310) and the outer tube body (200).

7. The composite pipe for plumbing as described in claim 1, characterized in that, Also includes: A sealing cap (400) is coaxially sleeved on the inner tube body (100). The sealing cap (400) is connected to the port of the outer tube body (200) and is used to seal the buffer space (101).

8. The composite pipe for plumbing as described in claim 7, characterized in that, Also includes: A vacuum port (500) is provided on the sealing cap (400) and communicates with the buffer space (101) to form a vacuum space in the buffer space (101) when the vacuum port (500) is connected to an external vacuum pumping device.

9. The composite pipe for plumbing as described in claim 7, characterized in that, Also includes: A sealing ring (600) is disposed between the sealing cap (400) and the inner tube body (100).

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