Composite pipe connection assembly and water supply and drainage pipeline

Abstract

The present invention discloses a composite pipe connection assembly and a water supply and drainage pipeline, and relates to the field of pipeline technology. The composite pipe connection assembly includes a composite pipe and a connecting pipe. The composite pipe includes a protective layer, a reinforcement layer, a warp layer and an inner lining layer, wherein the protective layer is arranged outside the reinforcement layer, the reinforcement layer is arranged outside the warp layer, and the warp layer is arranged outside the inner lining layer; the connecting pipe includes an extension pipe section, an external pipe section and a reinforcement pipe section, the extension pipe section is connected to the end of the composite pipe, the reinforcement pipe section is fitted in the extension pipe section and the inner lining layer, the external pipe section is connected to the extension pipe section, and partially extends into the reinforcement pipe section, and the reinforcement pipe section is clamped between the external pipe section and the extension pipe section. The composite pipe connection assembly provided by the present invention can realize effective connection between composite pipes, the connection is stable and reliable, and water leakage is avoided. In addition, the composite pipe has high strength, is not easy to be damaged, and has low maintenance cost.

Description

Technical Field

[0001] The present invention relates to the technical field of pipelines, and in particular to a composite pipe connection assembly and a water supply and drainage pipeline. Background Art

[0002] Currently, water supply and drainage pipelines are systems that transport and distribute industrial and drinking water, as well as collect, transport, and discharge industrial wastewater, domestic sewage, and rainwater. They play an indispensable role in municipal construction. Water supply and drainage pipelines are constructed by connecting multiple sections of pipe in sequence. However, existing pipes are weak, and the connections between sections are unreliable, making them prone to leakage.

[0003] In view of this, it is particularly important to design and manufacture a composite pipe connection assembly and a water supply and drainage pipe with reliable connection, especially in pipeline engineering. Summary of the Invention

[0004] The object of the present invention is to provide a composite pipe connection assembly that can achieve effective connection between composite pipes, the connection is stable and reliable, and water leakage is avoided. In addition, the composite pipes are high in strength, not easy to be damaged, and have low maintenance costs.

[0005] Another object of the present invention is to provide a water supply and drainage pipeline that can achieve effective connection between composite pipes, with stable and reliable connection to avoid water leakage. In addition, the composite pipe has high strength, is not easy to damage, and has low maintenance cost.

[0006] The present invention is achieved by adopting the following technical solutions.

[0007] A composite pipe connection assembly comprises a composite pipe and a connecting pipe; the composite pipe comprises a protective layer, a reinforcement layer, a warp layer and an inner lining layer, the protective layer is arranged outside the reinforcement layer, the reinforcement layer is arranged outside the warp layer, and the warp layer is arranged outside the inner lining layer; the connecting pipe comprises an extension pipe section, an external pipe section and a reinforcement pipe section, the extension pipe section is connected to the end of the composite pipe, the reinforcement pipe section is fitted in the extension pipe section and the inner lining layer, the external pipe section is connected to the extension pipe section and partially extends into the reinforcement pipe section, and the reinforcement pipe section is clamped between the external pipe section and the extension pipe section.

[0008] Optionally, the external tube section includes a first tube body, a flared tube body and a second tube body, the first tube body is fixedly connected to the second tube body through the flared tube body, the outer diameter of the first tube body is smaller than the outer diameter of the second tube body, and the reinforced tube section is clamped between the first tube body and the extended tube section.

[0009] Optionally, the connecting pipe also includes a fastening joint, the fastening joint is provided with a first fastening structure and a second fastening structure, the extension pipe section is provided with a first matching structure, the external pipe section is provided with a second matching structure, the first fastening structure cooperates with the first matching structure, and the second fastening structure cooperates with the second matching structure.

[0010] Optionally, the first fastening structure is an internal thread, the first matching structure is an external thread, and the internal thread matches the external thread; the second fastening structure is a supporting platform, the second matching structure is a protrusion, and the supporting platform and the protrusion abut against each other.

[0011] Optionally, the first fastening structure and the second fastening structure are both internal threads, the first matching structure and the second matching structure are both external threads, and each internal thread matches with one external thread.

[0012] Optionally, the first fastening structure is a supporting platform, the first matching structure is a protrusion, and the supporting platform and the protrusion are supported; the second fastening structure is an internal thread, the second matching structure is an external thread, and the internal thread and the external thread match.

[0013] Optionally, the reinforcement layer includes two layers of tapes, which are spirally wound outside the warp layer, and the winding directions of the two layers of tapes are opposite.

[0014] Optionally, the protective layer is made of ethylene propylene rubber, chlorinated polyethylene or nitrile rubber, the reinforcement layer is made of rubber or thermoplastic plastic, and the lining layer is made of polyethylene, polyvinyl chloride or polypropylene.

[0015] Optionally, there are two connecting pipes, which are arranged at two ends of the composite pipe opposite to each other.

[0016] A water supply and drainage pipeline comprises at least two of the above-mentioned composite pipe connection assemblies, wherein the composite pipe connection assemblies comprise a composite pipe and a connecting pipe; the composite pipe comprises a protective layer, a reinforcing layer, a warp layer and an inner lining layer, the protective layer is arranged outside the reinforcing layer, the reinforcing layer is arranged outside the warp layer, and the warp layer is arranged outside the inner lining layer; the connecting pipe comprises an extension pipe section, an external pipe section and a reinforcement pipe section, the extension pipe section is connected to the end of the composite pipe, the reinforcement pipe section is fitted in the extension pipe section and the inner lining layer, the external pipe section is connected to the extension pipe section and partially extends into the reinforcement pipe section, and the reinforcement pipe section is clamped between the external pipe section and the extension pipe section; the external pipe sections of two adjacent composite pipe connection assemblies are fixedly connected.

[0017] The composite pipe connection assembly and water supply and drainage pipe provided by the present invention have the following beneficial effects:

[0018] The composite pipe connection assembly provided by the present invention comprises a composite pipe including a protective layer, a reinforcement layer, a warp layer and an inner lining layer, wherein the protective layer is arranged outside the reinforcement layer, the reinforcement layer is arranged outside the warp layer, and the warp layer is arranged outside the inner lining layer; the connecting pipe comprises an extension pipe section, an external pipe section and a reinforcement pipe section, the extension pipe section is connected to the end of the composite pipe, the reinforcement pipe section is fitted inside the extension pipe section and the inner lining layer, the external pipe section is connected to the extension pipe section and partially extends into the reinforcement pipe section, and the reinforcement pipe section is clamped between the external pipe section and the extension pipe section. Compared with the prior art, the composite pipe connection assembly provided by the present invention can achieve effective connection between composite pipes due to the use of a reinforcement pipe section fitted inside the extension pipe section and the inner lining layer and a reinforcement layer arranged outside the inner lining layer, thereby being able to achieve stable and reliable connection between composite pipes, avoiding water leakage, and the composite pipe is high in strength, not easy to damage, and has low maintenance costs.

[0019] The water supply and drainage pipeline provided by the present invention includes a composite pipe connecting assembly, which can achieve effective connection between composite pipes, and the connection is stable and reliable, avoiding water leakage. In addition, the composite pipe has high strength, is not easy to damage, and has low maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A schematic structural diagram of a water supply and drainage pipeline provided in a first embodiment of the present invention;

[0022] Figure 2 A schematic structural diagram of a composite pipe connection assembly provided in a first embodiment of the present invention;

[0023] Figure 3 A cross-sectional view of a composite pipe in a composite pipe connection assembly provided in a first embodiment of the present invention;

[0024] Figure 4 A cross-sectional view showing the connection between a composite pipe and a connecting pipe in a composite pipe connecting assembly provided by the first embodiment of the present invention;

[0025] Figure 5 for Figure 4 A partial enlarged view of the middle V;

[0026] Figure 6 A cross-sectional view showing the connection between a composite pipe and a connecting pipe in a composite pipe connecting assembly provided in a second embodiment of the present invention;

[0027] Figure 7This is a cross-sectional view of the connection between a composite pipe and a connecting pipe in a composite pipe connecting assembly provided by a third embodiment of the present invention.

[0028] Icons: 10-water supply and drainage pipe; 100-composite pipe connection assembly; 110-composite pipe; 111-protective layer; 112-reinforcement layer; 113-warp layer; 114-lining layer; 120-connecting pipe; 121-extension pipe section; 1211-first matching structure; 122-external pipe section; 1221-second matching structure; 123-reinforced pipe section; 124-fastening joint; 1241-first fastening structure; 1242-second fastening structure; 125-first pipe body; 126-flared pipe body; 127-second pipe body. DETAILED DESCRIPTION

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0032] In the description of the present invention, it should be noted that the terms "inner," "outer," "upper," "lower," and "horizontal" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely for distinction and should not be construed as indicating or implying relative importance.

[0033] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0034] The following describes some embodiments of the present invention in detail with reference to the accompanying drawings. In the absence of conflict, the features of the following embodiments can be combined with each other.

[0035] First embodiment

[0036] Please refer to Figure 1 and Figure 2 The present invention provides a water supply and drainage pipe 10 for supplying or draining water. The pipe 10 effectively connects composite pipes 110, providing a stable and reliable connection that prevents water leakage. Furthermore, the composite pipes 110 are strong, resistant to damage, and have low maintenance costs.

[0037] It should be noted that the water supply and drainage pipeline 10 includes at least two composite pipe connection assemblies 100, and at least two composite pipe connection assemblies 100 are connected in sequence to form a water supply and drainage pipeline 10 of a certain length, thereby facilitating municipal water supply or drainage.

[0038] The composite pipe connection assembly 100 includes a composite pipe 110 and a connecting pipe 120. The composite pipe 110 and the connecting pipe 120 are coaxially arranged. The connecting pipe 120 is connected to one end of the composite pipe 110 and is used to connect to the connecting pipe 120 of another composite pipe connection assembly 100. Specifically, two connecting pipes 120 are provided between two adjacent composite pipes 110, and the two connecting pipes 120 are connected in sequence to form a water supply and drainage pipe 10 of a certain length.

[0039] In this embodiment, there are two connecting pipes 120, which are disposed opposite each other at the ends of the composite pipe 110. One end of the composite pipe 110 can be connected to another composite pipe connecting assembly 100 via one connecting pipe 120, and the other end of the composite pipe 110 can be connected to yet another composite pipe connecting assembly 100 via another connecting pipe 120, thereby facilitating installation and maintenance of the water supply and drainage pipe 10.

[0040] Please refer to Figure 3Composite pipe 110 includes a protective layer 111, a reinforcement layer 112, a warp layer 113, and an inner lining layer 114. Protective layer 111 surrounds reinforcement layer 112, which in turn surrounds warp layer 113, which in turn surrounds inner lining layer 114. Specifically, protective layer 111 provides external protection, preventing corrosion or damage to composite pipe 110; reinforcement layer 112 increases the strength and pressure-bearing capacity of composite pipe 110; warp layer 113 supports axial stress in composite pipe 110; and inner lining layer 114 ensures water flow.

[0041] Please refer to Figure 4 and Figure 5 The connecting pipe 120 includes an extension pipe section 121, an external pipe section 122, a reinforcement pipe section 123, and a fastening joint 124. The extension pipe section 121 is connected to the end of the composite pipe 110. The reinforcement pipe section 123 is disposed in a close fit between the extension pipe section 121 and the inner lining layer 114. The reinforcement pipe section 123 is used to improve the connection strength between the extension pipe section 121 and the composite pipe 110 and to cover the gap between the extension pipe section 121 and the composite pipe 110, thereby preventing water from leaking out of the gap between the extension pipe section 121 and the composite pipe 110. The external pipe section 122 is connected to the extension pipe section 121 via the fastening joint 124 and partially extends into the reinforcement pipe section 123. The reinforcement pipe section 123 is clamped between the external pipe section 122 and the extension pipe section 121, and the external pipe section 122 can fix the position of the reinforcement pipe section 123 to prevent the reinforcement pipe section 123 from moving relative to the extension pipe section 121.

[0042] In this embodiment, the outer pipe sections 122 of two adjacent composite pipe connection assemblies 100 are fixedly connected to achieve a fixed connection between the two adjacent connecting pipes 120, facilitating the formation of the water supply and drainage pipe 10. Specifically, the two outer pipe sections 122 are welded to improve the connection strength and prevent breakage.

[0043] In this embodiment, the inner diameters of the extension pipe section 121 and the composite pipe 110 are equal, and the extension pipe section 121 and the composite pipe 110 are fixedly connected by welding. However, this is not limiting. In other embodiments, the extension pipe section 121 and the composite pipe 110 may also be fixedly connected by welding, and the connection method between the extension pipe section 121 and the composite pipe 110 is not specifically limited.

[0044] The external pipe section 122 includes a first pipe body 125, a flared pipe body 126, and a second pipe body 127. The first pipe body 125 is fixedly connected to the second pipe body 127 via the flared pipe body 126. In this embodiment, the first pipe body 125, the flared pipe body 126, and the second pipe body 127 are integrally formed to enhance connection strength. The outer diameter of the first pipe body 125 is smaller than that of the second pipe body 127. The first pipe body 125 is inserted into the reinforcement pipe section 123, which is clamped between the first pipe body 125 and the extension pipe section 121. The second pipe body 127 is used to connect to the connecting pipe 120 of another composite pipe connection assembly 100. Specifically, the first pipe body 125 has an outwardly expanding elastic force to firmly hold the reinforcement pipe section 123 against the inner sidewall of the extension pipe section 121, thereby fixing the position of the reinforcement pipe section 123 and preventing it from shifting or rotating.

[0045] It should be noted that the fastening joint 124 is provided with a first fastening structure 1241 and a second fastening structure 1242. The extension pipe section 121 is provided with a first matching structure 1211, and the external pipe section 122 is provided with a second matching structure 1221. The first fastening structure 1241 cooperates with the first matching structure 1211, and the second fastening structure 1242 cooperates with the second matching structure 1221 to fix the relative position of the extension pipe section 121 and the external pipe section 122, preventing relative displacement between the extension pipe section 121 and the external pipe section 122.

[0046] In this embodiment, the first fastening structure 1241 is an internal thread, and the first mating structure 1211 is an external thread, with the internal thread mating with the external thread; the second fastening structure 1242 is a support, and the second mating structure 1221 is a protrusion, with the support and the protrusion abutting against each other. Specifically, the fastening joint 124 can be tightened relative to the extension pipe section 121 by screwing. During this process, the fastening joint 124 moves along the axial direction of the extension pipe section 121 in a direction away from the external pipe section 122 until the support abuts against the protrusion. At this point, the relative positions of the fastening joint 124, the extension pipe section 121, and the external pipe section 122 are all fixed, thereby fixing the relative positions of the extension pipe section 121 and the external pipe section 122.

[0047] It is worth noting that the reinforcement layer 112 includes two layers of tape (not shown), which are spirally wound outside the warp layer 113. The winding directions of the two layers of tape are opposite to each other, so as to further improve the strength of the composite pipe 110, so that the composite pipe 110 has good pressure bearing and bending resistance.

[0048] In this embodiment, the protective layer 111 is made of ethylene propylene rubber, the reinforcing layer 112 is made of rubber, and the inner lining layer 114 is made of polyethylene. However, this is not limiting. In other embodiments, the protective layer 111 may be made of chlorinated polyethylene or nitrile rubber; the reinforcing layer 112 may be made of thermoplastic plastic; and the inner lining layer 114 may be made of polyvinyl chloride or polypropylene. The materials of the protective layer 111, reinforcing layer 112, and inner lining layer 114 are not specifically limited.

[0049] The composite pipe connection assembly 100 provided in an embodiment of the present invention comprises a composite pipe 110 including a protective layer 111, a reinforcement layer 112, a warp layer 113 and an inner lining layer 114. The protective layer 111 is arranged outside the reinforcement layer 112, the reinforcement layer 112 is arranged outside the warp layer 113, and the warp layer 113 is arranged outside the inner lining layer 114. The connecting pipe 120 comprises an extension pipe section 121, an external pipe section 122 and a reinforcement pipe section 123. The extension pipe section 121 is connected to the end of the composite pipe 110, and the reinforcement pipe section 123 is fitted in the extension pipe section 121 and the inner lining layer 114. The external pipe section 122 is connected to the extension pipe section 121 and partially extends into the reinforcement pipe section 123. The reinforcement pipe section 123 is clamped between the external pipe section 122 and the extension pipe section 121. Compared to the prior art, the composite pipe connection assembly 100 provided by the present invention utilizes a reinforced pipe section 123 fitted within the extension pipe section 121 and the inner lining layer 114, and a reinforcement layer 112 disposed outside the inner lining layer 114. This effectively connects the composite pipes 110, ensuring a stable and reliable connection and preventing water leakage. Furthermore, the composite pipes 110 are relatively strong, not easily damaged, and have low maintenance costs. This results in a stable, reliable, and highly practical water supply and drainage pipe 10.

[0050] Second embodiment

[0051] Please refer to Figure 6 An embodiment of the present invention provides a composite pipe connection assembly 100 . Compared with the first embodiment, this embodiment differs in that the fastening joint 124 is connected to the external pipe section 122 and the extension pipe section 121 in a different manner.

[0052] In this embodiment, the first fastening structure 1241 and the second fastening structure 1242 are both internally threaded, and the first mating structure 1211 and the second mating structure 1221 are both externally threaded, with each internal thread mating with an external thread. Specifically, the fastening joint 124 can be tightened relative to the extension pipe section 121 by screwing, and at the same time, the fastening joint 124 is also tightened relative to the external pipe section 122. When the fastening joint 124 is screwed to the limit position, the fastening joint 124 cannot continue to rotate in the tightening direction. At this time, the relative positions of the fastening joint 124, the extension pipe section 121, and the external pipe section 122 are all fixed, thereby fixing the relative positions of the extension pipe section 121 and the external pipe section 122.

[0053] The beneficial effects of the composite pipe connection assembly 100 provided in this embodiment of the present invention are the same as those of the first embodiment, and are not described in detail herein.

[0054] Third embodiment

[0055] Please refer to Figure 7 An embodiment of the present invention provides a composite pipe connection assembly 100 . Compared with the first embodiment, this embodiment differs in that the fastening joint 124 is connected to the external pipe section 122 and the extension pipe section 121 in a different manner.

[0056] In this embodiment, the first fastening structure 1241 is a support plate, the first mating structure 1211 is a protrusion, and the support plate abuts against the protrusion; the second fastening structure 1242 is an internal thread, and the second mating structure 1221 is an external thread, and the internal thread cooperates with the external thread. Specifically, the fastening joint 124 can be tightened relative to the external pipe section 122 by screwing. During this process, the fastening joint 124 moves along the axial direction of the external pipe section 122 in a direction away from the extension pipe section 121 until the support plate abuts against the protrusion. At this time, the relative positions of the fastening joint 124, the extension pipe section 121, and the external pipe section 122 are all fixed, thereby fixing the relative positions of the extension pipe section 121 and the external pipe section 122.

[0057] The beneficial effects of the composite pipe connection assembly 100 provided in this embodiment of the present invention are the same as those of the first embodiment, and are not described in detail herein.

[0058] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A composite pipe connection assembly, characterized in that: Including composite pipe and connecting pipe; The composite pipe includes a protective layer, a reinforcement layer, a warp layer and an inner lining layer, wherein the protective layer is arranged outside the reinforcement layer, the reinforcement layer is arranged outside the warp layer, and the warp layer is arranged outside the inner lining layer; The connecting pipe includes an extension pipe section, an external pipe section, and a reinforcement pipe section. The extension pipe section is connected to the end of the composite pipe. The reinforcement pipe section is fitted within the extension pipe section and the inner lining layer. The reinforcement pipe section is used to improve the connection strength between the extension pipe section and the composite pipe and to cover the gap between the extension pipe section and the composite pipe. The external pipe section partially extends into the reinforcement pipe section, and the reinforcement pipe section is clamped between the external pipe section and the extension pipe section. The external pipe section includes a first pipe body, a flared pipe body, and a second pipe body. The first pipe body is fixedly connected to the second pipe body through the flared pipe body. The outer diameter of the first pipe body is smaller than the outer diameter of the second pipe body. The reinforced pipe section is clamped between the first pipe body and the extended pipe section. The first pipe body has an outward expansion elastic force to hold the reinforced pipe section against the inner side wall of the extended pipe section. The connecting pipe further includes a fastening joint, the fastening joint being provided with a first fastening structure and a second fastening structure, the extension pipe section being provided with a first matching structure, the external pipe section being provided with a second matching structure, the first fastening structure matching with the first matching structure, the second fastening structure matching with the second matching structure, and the external pipe section being connected to the extension pipe section via the fastening joint; The first fastening structure is a supporting platform, the first matching structure is a convex block, and the supporting platform is in contact with the convex block; the second fastening structure is an internal thread, the second matching structure is an external thread, and the internal thread matches with the external thread.

2. The composite pipe connection assembly according to claim 1, characterized in that: The reinforcement layer includes two layers of tapes, which are spirally wound outside the warp layer, and the winding directions of the two layers of tapes are opposite.

3. The composite pipe connection assembly according to claim 1, characterized in that: The protective layer is made of ethylene propylene rubber, chlorinated polyethylene or nitrile rubber, the reinforcement layer is made of rubber or thermoplastic plastic, and the lining layer is made of polyethylene, polyvinyl chloride or polypropylene.

4. The composite pipe connection assembly according to claim 1, characterized in that: There are two connecting pipes, which are arranged at two ends of the composite pipe opposite to each other.

5. A water supply and drainage pipeline, characterized in that: The method comprises at least two composite pipe connection assemblies according to any one of claims 1 to 4, wherein the external pipe sections of two adjacent composite pipe connection assemblies are fixedly connected.

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