Multi-layer composite water pipe

Abstract

A multi-layer composite water pipe comprises a pipe body, the pipe body is provided with corrugated structures at equal intervals, the corrugated structures limit that the pipe body comprises at least one compression configuration and one extension configuration, and the length of the pipe body can be changed between the compression configuration and the extension configuration; a first tubular element is arranged on the outer side of the pipeline body and made of elastic materials, an extensible woven layer is arranged on the outer side of the first tubular element and made of fabric materials, a second tubular element is arranged on the outer side of the woven layer and made of elastic materials, and the first tubular element and the second tubular element are arranged on the outer side of the woven layer and made of elastic materials. Both the braid layer and the second tubular element may extend or compress in a length change direction of the conduit body.

Description

Technical Field

[0001] The utility model relates to the technical field of water pipes, in particular to a multi-layer composite water pipe. Background Art

[0002] In modern industrial production, the design and use of pipeline systems are crucial. In order to meet various complex application requirements, people have developed various types of pipelines. Among them, corrugated pipes are widely used in various industrial fields due to their unique structure and performance.

[0003] Traditional water pipes have a single structure and poor scratch resistance. When used in a rough environment, they are easily scratched, resulting in damage to the hose. Secondly, due to the nature of the material, traditional hoses are prone to breakage. This breakage is usually caused by long-term use or excessive pressure inside the pipe. When the hose breaks, it will not work properly, thus affecting the operation of the entire pipeline system. Therefore, traditional hoses need to be inspected and replaced regularly to prevent sudden pipeline failures.

[0004] In the US patent application number 10563796, a retractable hose is disclosed, which has a protective cover made of curled fabric, but it tends to absorb a lot of dirt during use and is not easy to clean. The patent document with the publication number CN213064955U discloses a rubber hose with strong scratch resistance, the interior of the body is provided with a protective layer, a waterproof layer, a tensile layer, an elastic layer and an anti-corrosion layer, so that the rubber hose has the functions of anti-corrosion, etc., to avoid the rubber hose from being damaged after long-term use, but its structure is complex and the production cost is high.

[0005] Based on this, it is necessary to propose a new water pipe, which has strong strength characteristics and good pressure resistance and can adapt to various complex environments. In addition, the water pipe also has good wear resistance, which effectively extends the service life of the water pipe. Utility Model Content

[0006] The utility model provides a multi-layer composite water pipe, comprising a pipe body, wherein the pipe body has an equally spaced extendable corrugated structure, the corrugated structure defines that the pipe body includes at least one compression configuration and at least one extension configuration, and the pipe body can change its length between the compression configuration and the extension configuration; and

[0007] Wherein, a first tubular element is arranged on the outside of the pipeline body, and the first tubular element is made of elastic material;

[0008] An extensible braided layer is disposed on the outer side of the first tubular element. The braided layer is made of a fabric material. The braided layer includes at least two braided rope groups. The braided rope groups include at least two braided ropes. The braided ropes are distributed in parallel. The two braided rope groups are cross-wound on the first tubular element to form a continuous diamond mesh structure.

[0009] A second tubular element is arranged outside the braided layer, and the second tubular element is made of elastic material. The first tubular element, the braided layer and the second tubular element can all be extended or compressed in the length change direction of the pipeline body.

[0010] The utility model also provides a multi-layer composite water pipe, comprising a pipe body, wherein the pipe body has an equally spaced extendable corrugated structure, the corrugated structure defines that the pipe body includes at least one compression configuration and at least one extension configuration, and the pipe body can change its length between the compression configuration and the extension configuration;

[0011] Wherein, a first tubular element is arranged on the outside of the pipeline body, and the first tubular element is made of elastic material;

[0012] An extensible braided layer is disposed on the outer side of the first tubular element. The braided layer is made of a fabric material. The braided layer includes at least two braided rope groups. The braided rope groups include at least two braided ropes. The braided ropes are distributed in parallel. The two braided rope groups are cross-wound on the first tubular element to form a continuous diamond mesh structure.

[0013] A second tubular element is arranged outside the braided layer, the second tubular element is made of elastic material, and the first tubular element, the braided layer and the second tubular element can all be extended or compressed in the length change direction of the pipeline body;

[0014] The pipeline body includes an input end and an output end, the input end is detachably connected with an adapter, the adapter has a sealing sleeve, and the input end and the adapter form a detachable connection through the sealing sleeve.

[0015] The utility model also provides a process for producing a multi-layer composite water pipe, which comprises the following steps: preparing materials for making a pipe body and a first extruder; preparing materials for a first tubular element and a second extruder; preparing fabric materials for making a braided layer and a braiding machine; preparing materials for making a second tubular element and a third extruder; the first extruder, the second extruder, the braiding machine and the third extruder are arranged in sequence; preparing an adapter and a fastening device;

[0016] The machine is started, and the pipe body extruded by the first extruder is introduced into the second extruder, and the second extruder extrude the first tubular element covering the pipe body on the outside of the pipe body; the pipe body and the first tubular element are introduced into the braiding machine, and the braided layer covering the first tubular element is braided on the outside of the first tubular element, and the third extruder extrude the second tubular element covering the pipe body on the outside of the braided layer; a continuous water pipe is formed;

[0017] Cut the continuous water pipe into the required length; connect the adapter to the two ends of the cut water pipe, and put the fastening device on the connection between the adapter and the water pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the implementation manner will be briefly introduced below. Obviously, the drawings described below are only some implementation manners of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a structural schematic diagram of the pipeline body;

[0020] Figure 2 It is a schematic diagram of the structure of the water pipe;

[0021] Figure 2A It is a schematic diagram of the structure of a water pipe in another embodiment;

[0022] Figure 3 It is a schematic diagram of the partial enlarged structure of the braided layer;

[0023] Figure 4 It is a schematic diagram of the connection structure between the pipeline body and the adapter;

[0024] Figure 5 is a schematic diagram of the cross-sectional structure of the adapter;

[0025] Figure 6 A schematic structural diagram of the first connection end;

[0026] Figure 7 is a schematic diagram of the cross-sectional structure of the first fastener and the first connecting end;

[0027] Figure 8 is a schematic structural diagram of the sealing sleeve on the second connecting end;

[0028] Figure 9-10 is a schematic diagram of the cross-sectional structure of the annular boss;

[0029] Figure 11-Figure 12 is a schematic diagram of the structure of the fastening device;

[0030] Fig.13is a schematic diagram of the structure of the fixing part;

[0031] Fig.14 It is a schematic diagram of the cross-sectional structure of the connection between the fastener and the adapter.

[0032] In the figure:

[0033] Multilayer composite water pipe (100); pipe body (1000); compression configuration (1001); extension configuration (1002); first tubular element (1003); braided layer (1004); braided rope group (1005); braided rope (1006); second tubular element (1007); input end (1008); output end (1009); first internal thread (1010); protective layer (1101); adapter (2000); first connection (2001); second connection end (2002); water inlet channel (2003); water outlet channel (2004); chute (2101); buckle (2102); first fastener (2103); 103); slider (2104); sealing sleeve (2105); first external thread (2106); conical opening (2107); annular boss (2005); fixing buckle (2201); infusion channel (2202); receiving end (2203); water flow path (2204); second external thread (2205); connecting portion (2006); water flow path (2007); second external thread (2008); fastening device (3000); fixing member (3001); fastening member (3002); fixing portion (3003); clamping strip (3004); protrusion (3005); gap (3006); second internal thread (3007). DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0035] Reference to "embodiment" or "implementation" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment or implementation may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0036] In this specification, for the sake of convenience, the words and phrases indicating the orientation or positional relationship such as "middle", "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like are used to illustrate the positional relationship of the constituent elements with reference to the drawings. This is only for the convenience of describing this specification and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. The positional relationship of the constituent elements is appropriately changed according to the orientation of the constituent elements being described. Therefore, it is not limited to the words and phrases described in the specification, and can be appropriately replaced according to the circumstances.

[0037] The utility model provides a multi-layer composite water pipe 100, such as Figure 1 As shown, it includes a pipe body 1000, and the pipe body 1000 has an equally spaced extendable corrugated structure, the corrugated structure defines that the pipe body 1000 includes at least one compression configuration 1001 and at least one extension configuration 1002, and the pipe body 1000 can change the length between the compression configuration 1001 and the extension configuration 1002; wherein, the pipe body 1000 has an equally spaced corrugated structure, which not only enhances the strength of the water pipe 100 and prevents the water pipe 100 from rupturing during use, but also enables the water pipe 100 to maintain a good shape when compressed and extended. In addition, the pipe body 1000 is made of plastic material. Since the pipe body 1000 is made of plastic material, it has the characteristics of light weight, corrosion resistance, low cost, etc., which can effectively reduce production costs.

[0038] In this embodiment, if Figure 2 As shown, a first tubular element 1003 is disposed on the outside of the pipe body 1000. The first tubular element 1003 is made of an elastic material. An extendable braided layer 1004 is disposed on the outside of the first tubular element 1003. The braided layer 1004 is made of a fabric material. The braided layer 1004 includes at least two braided rope groups 1005. Figure 3As shown, each braided rope group 1005 includes twelve braided ropes 1006, and the twelve braided ropes 1006 are distributed in parallel. Every two braided rope groups 1005 are cross-wound on the first tubular element 1003 to form a continuous diamond mesh structure. A second tubular element 1007 is arranged on the outside of the braided layer 1004. The second tubular element 1007 is made of elastic material. The first tubular element 1003, the braided layer 1004 and the second tubular element 1007 can all extend or extend in the length change direction of the pipe body 1000. Compression; wherein, the first tubular element 1003 and the second tubular element 1007 are made of elastic material, which can provide additional protection for the pipe body 1000 to prevent physical damage, and the braided layer 1004 can effectively prevent the water pipe 100 from over-expanding due to excessive water pressure and damaging the water pipe 100. The pipe body 1000, the first tubular element 1003, the braided layer 1004 and the second tubular element 1007 can all be extended or compressed in the length change direction, which allows the pipe to adapt to a variety of different installation environments and usage conditions.

[0039] In another embodiment, if Figure 2A As shown, a protective layer 1101 is also provided inside the pipe body 1000, wherein the protective layer 1101 has a corrugated structure corresponding to the pipe body 1000, and the protective layer 1101 is made of a plastic material. Preferably, the protective layer 1101 can be made of a polypropylene (PP) material, which has good corrosion resistance and can protect the pipe body 1000 from corrosion, thereby extending the service life of the pipe, and the protective layer 1101 has a corrugated structure, which can increase the thickness and hardness of the protective layer 1101, thereby improving the wear resistance of the water pipe 100.

[0040] In this embodiment, the elastic material includes one of natural rubber, synthetic rubber, thermoplastic rubber, natural or synthetic vulcanized rubber, latex, and a mixture of one or more of natural rubber, synthetic rubber, thermoplastic elastomer, natural or synthetic vulcanized rubber and latex. These materials usually have good elasticity, wear resistance and weather resistance, and can also maintain good performance under various environmental conditions, which can prevent the water pipe 100 from being damaged in harsh environments, and make the water pipe 100 have a longer service life; preferably, the elastic material is thermoplastic rubber (TPR) material, which has high elastic properties, as well as good elongation, resilience and wear resistance, and the thermoplastic rubber (TPR) is simple to process, which can effectively save the consumption of manpower and material resources in the production process.

[0041] In this embodiment, the pipe body 1000 is made of a plastic material, wherein the plastic material includes one of polypropylene, polyethylene, polystyrene, polyvinyl chloride or ethylene-vinyl acetate copolymer, and a mixture of one or more of polypropylene, polyethylene, polystyrene, polyvinyl chloride or ethylene-vinyl acetate copolymer; these materials generally have good tensile strength, rigidity and wear resistance, and by mixing and using, a new material with better comprehensive performance can be obtained; preferably, the extensible plastic material is polypropylene (PP) material, which has good heat resistance and high elasticity, and has stable chemical properties, can work stably in harsh environments such as high temperature and high pressure, and its production The production cost is low and the production cost can be effectively reduced. Another preferred extensible plastic material in this embodiment is a mixture of polypropylene (PP) and ethylene-vinyl acetate copolymer (EVA). Both polypropylene (PP) and ethylene-vinyl acetate copolymer (EVA) have good corrosion resistance to acid, alkali, salt and other chemical substances, can work stably under high temperature, high pressure and harsh environment, and have good UV resistance and oxidation resistance. They can be used outdoors for a long time without aging or yellowing. Using a mixture of polypropylene (PP) and ethylene-vinyl acetate copolymer (EVA) as the manufacturing material of the water pipe 100 will show better performance and longer service life in actual applications, and will also be more economical and environmentally friendly.

[0042] In this embodiment, the fabric material includes one of cotton, wool, silk, polyester, nylon or polypropylene, and a mixture of one or more of cotton, wool, silk, polyester, nylon or polypropylene; wherein cotton, wool and silk have good hygroscopicity and air permeability, as well as good extensibility; polyester, nylon and polypropylene have good strength and elasticity, as well as good plasticity. Different fabric materials have different physical properties, such as softness, hardness, elasticity, hygroscopicity, warmth retention, etc. By mixing and using, a new material with better comprehensive performance can be obtained, which can reduce the total cost while maintaining the required performance. Preferably, the fabric material is polyester material, which has strong plasticity, stable chemical properties, and high strength and good elasticity.

[0043] In this embodiment, the length change of the pipe body 1000 between the compression configuration 1001 and the extension configuration 1002 is 1.2-5 times of the pipe body 1000; specifically, the length change of the pipe body 1000 between the compression configuration 1001 and the extension configuration 1002 is 2-2.5 times of the pipe body 1000; the length of the pipe body 1000 can be adjusted as needed, which allows the pipe to adapt to a variety of different installation environments and usage conditions.

[0044] In this embodiment, if Figure 4As shown, the pipe body 1000 includes an input end 1008 and an output end 1009, and the input end 1008 is detachably connected to an adapter 2000. The pipe body 1000 has a circular cross-section, and at least a portion of the inner wall surface of the input end 1008 is provided with a first internal thread 1010. The detachable connection design between the input end 1008 and the adapter 2000 makes the installation and maintenance of the water pipe 100 more convenient. If the water pipe needs to be replaced or cleaned, it is only necessary to remove the adapter 2000 without replacing the entire water pipe. This saves costs and improves efficiency. The pipe body 1000 has a circular cross-section, which has advantages in fluid dynamics and can effectively reduce fluid resistance and improve fluid transportation efficiency.

[0045] In this embodiment, if Figure 5 As shown, the adapter 2000 includes a first connection end 2001 and a second connection end 2002, wherein the first connection end 2001 and the second connection end 2002 both have a circular cross-section, and the first connection end 2001 and the second connection end 2002 respectively define a water inlet channel 2003 and a water outlet channel 2004 along the central axis, wherein the diameter of the water inlet channel 2003 is greater than the diameter of the water outlet channel 2004; setting the diameter of the water inlet channel 2003 to be greater than the diameter of the water outlet channel 2004 can effectively reduce fluid resistance and improve fluid transportation efficiency.

[0046] In this embodiment, if Figure 6-Figure 7 As shown, the first connection end 2001 can be connected to an external water supply device, and three slide grooves 2101 are arranged on the first connection end 2001. Buckles 2102 are arranged inside the slide grooves 2101. A first fastener 2103 is arranged outside the first connection end 2001. At least one slider 2104 is arranged on the inner wall surface of the first fastener 2103. The slider 2104 can slide longitudinally along the slide groove 2101 and push the buckle 2102 to be in a clamped or loosened state; when the slider 2104 slides along the slide groove 2101, the buckle 2102 is clamped or loosened. When sliding downward, the buckle 2102 is in a relaxed state, the water outlet of the water supply device extends into the first connection end 2001 and communicates with the water inlet channel 2003. When the slider 2104 slides upward along the slide groove 2101, the buckle 2102 locks the water outlet of the water supply device; the slider 2104 slides along the slide groove 2101, thereby pushing the buckle 2102 to be tightly connected with the water supply device, which can enhance the stability of the connection, prevent the connection end from loosening under the impact of the water flow, make the connection tighter, and prevent water leakage. In other embodiments (not shown in the figure), four slide grooves 2101 are provided on the first connection end 2001, or are configured in any other desired number. In other embodiments (not shown in the figure), four sliders 2104 are provided on the inner wall surface of the first fastener 2103, or are configured in any other desired number.

[0047] In this embodiment, if Figure 8 As shown, a sealing sleeve 2105 is sleeved on the second connection end 2002, and a first external thread 2106 is provided on the outer side of the sealing sleeve 2105. The first internal thread 1010 is matched with the first external thread 2106 to form a detachable connection between the adapter 2000 and the pipe body 1000; wherein, the adapter 2000 and the pipe body 1000 are detachably connected via threads, making the installation and disassembly process simpler and more convenient, without the need for special tools, thereby greatly improving work efficiency, and if the adapter 2000 or the pipe body 1000 needs to be replaced or repaired, it can be easily disassembled without replacing the entire system, thereby saving cost and time, and in addition, by providing the sealing sleeve 2105, the leakage of liquid or gas can be effectively prevented, thereby ensuring the sealing of the system.

[0048] In this embodiment, the sealing sleeve 2105 is made of a rubber material, which has good wear resistance and can maintain its shape and size during long-term use, thereby ensuring the stability of the connection; and the rubber material has good elasticity and sealing properties, which can provide a certain buffer during the connection process, prevent hard objects from directly contacting the connection end, and avoid possible damage to the connection end; it can also prevent the leakage of liquid or gas and improve the sealing of the connection.

[0049] In other embodiments (not shown in the figure), the sealing sleeve 2105 is made of silicone material. The silicone material has good heat resistance and cold resistance, so that the connection can maintain good performance in various temperature environments.

[0050] In this embodiment, if Figure 8 As shown, the sealing sleeve 2105 has a tapered opening 2107, and the outer diameter of the second connection end 2002 is smaller than the inner diameter of the pipe body 1000; wherein, since the outer diameter of the second connection end 2002 is smaller than the inner diameter of the pipe body 1000, the second connection end 2002 can be easily inserted into the pipe body 1000, thereby simplifying the installation process. At the same time, the tapered opening 2107 can be used as a guide structure to help the second connection end 2002 to be more accurately aligned with the inner diameter of the pipe body 1000, thereby achieving automatic positioning. When the second connection end 2002 is inserted into the pipe body 1000, the tapered opening 2107 can fit tightly with the inner wall of the pipe body 1000, forming a good sealing effect to prevent leakage of liquid or gas.

[0051] In this embodiment, if Fig.10As shown, the adapter 2000 also includes an annular boss 2005, and the upper end of the annular boss 2005 includes six fixing buckles 2201, wherein the six fixing buckles 2201 are evenly distributed along the circumference, and the lower end portion of the first connecting end 2001 is communicated with the annular boss 2005 and fixedly connected through the fixing buckles 2201, and the annular boss 2005 also includes an infusion channel 2202, and the infusion channel 2202 has a diameter substantially the same as that of the water inlet channel 2003; by providing the fixing buckles 2201, the first connecting end 2001 can be stably connected to the annular boss 2005 to prevent loosening or falling off during use, and since the diameter of the infusion channel 2202 is substantially the same as that of the water inlet channel 2003, the flow efficiency of the fluid in the pipeline can be guaranteed, and the flow velocity change or pressure loss caused by the change of the channel diameter can be avoided.

[0052] In other embodiments (not shown in the figures), the upper end of the annular boss 2005 includes 7 fixing buckles 2201, or is configured in any other desired number to improve the stability and reliability of the connection.

[0053] In this embodiment, if Fig.11 As shown, the annular boss 2005 also includes a receiving end 2203, which receives and limits the longitudinal sliding distance of the first fastener 2103. A connecting portion 2006 is provided at the lower end of the annular boss 2005. A water flow path 2007 is provided inside the connecting portion 2006. The water flow path 2007 has a diameter substantially the same as that of the water outlet channel 2004. The water flow path 2007 connects the infusion channel 2202 with the water outlet channel 2004. A second external thread 2008 is also provided on the connecting portion 2006. The receiving end 2203 can effectively prevent loosening or falling off during use, thereby improving the stability of the connection. At the same time, since the diameter of the water flow path 2007 is substantially the same as that of the water outlet channel 2004, the flow efficiency of the fluid in the pipeline can be guaranteed, and the flow velocity change or pressure loss caused by the change of the channel diameter can be avoided.

[0054] In this embodiment, if Figure 12-13 As shown, a fastening device 3000 is provided at the connection between the input end 1008 and the adapter 2000, and the fastening device 3000 includes a fixing member 3001 and a fastener 3002 mounted on the fixing member 3001, and both the fixing member 3001 and the fastener 3002 have a cylindrical structure with a diameter changing along the axial direction. The diameter of the fixing member 3001 is not less than the diameter of the pipe body 1000; by providing the fastening device 3000, the input end 1008 and the adapter 2000 are firmly connected to prevent loosening or falling off during use.

[0055] In this embodiment, if Fig.14As shown, the fixing member 3001 includes a fixing portion 3003, and the fixing portion 3003 includes a plurality of clips 3004 evenly distributed along the circumference, wherein a protrusion 3005 is provided on the inner side of the clips 3004, and a gap 3006 is provided between adjacent clips 3004; wherein, by providing the protrusion 3005 on the inner side of the clips 3004, the clips 3005 can be more firmly engaged with the water pipe 100 to prevent loosening or falling off during use, and the gap 3006 between adjacent clips 3004 provides a telescopic space for the fixing member 3001, which can adapt to the expansion or contraction of the water pipe 100 under the action of water pressure, thereby improving the stability of the connection.

[0056] In other embodiments (not shown in the figures), an anti-skid texture is added to the protrusion 3005. By providing the anti-skid texture, the friction force can be increased to prevent the fixing member 3001 from sliding during use, thereby providing better stability.

[0057] In this embodiment, if Fig.14 As shown, at least a portion of the inner side of the fastener 3002 is provided with a second internal thread 3007, and the second external thread 2008 is matched and connected with the second internal thread 3007, so that the fastener 3002 is fastened to the adapter 2000; through the threaded connection, the installation and disassembly process are convenient and quick, and no special tools are required, which greatly improves the work efficiency, and the threaded connection can provide a stable connection to prevent loosening or falling off during use.

[0058] The utility model provides a process for producing a multi-layer composite water pipe 100, and the production process comprises the following steps: preparing materials for making a pipe body 1000 and a first extruder; preparing materials and a second extruder for making a first tubular element 1003; preparing fabric materials and a braiding machine for making a braided layer 1004; preparing materials and a third extruder for making a second tubular element 1007; arranging the first extruder, the second extruder, the braiding machine and the third extruder in sequence; preparing an adapter 2000 and a fastening device 3000; after the preparation work is completed, starting the machine, introducing the pipe body 1000 extruded by the first extruder into the second extruder, and the second extruder The first extruder extrude the first tubular element 1003 of the pipe body 1000 on the outside of the pipe body 1000; the pipe body 1000 and the first tubular element 1003 are introduced into the braiding machine, and the braided layer 1004 of the first tubular element 1003 is braided and coated on the outside of the first tubular element 1003; the third extruder extrude the second tubular element 1007 of the pipe body 1000 on the outside of the braided layer 1004; a continuous water pipe 100 is formed; the continuous water pipe 100 is cut into the required length; the adapter 2000 is connected to both ends of the cut water pipe 100, and the fastening device 3000 is mounted on the connection between the adapter 2000 and the water pipe 100.

[0059] In another process for producing a multi-layer composite water pipe 100, a fourth extruder and materials for a protective layer 1101 are prepared, and the first extruder and the fourth extruder are started simultaneously, so that the pipe body 1000 and the protective layer 1101 inside the pipe body 1000 are extruded and compacted simultaneously, the pipe body 1000 is introduced into the second extruder, and the second extruder extrude and cover the first tubular element 1003 on the outside of the pipe body 1000; the pipe body 1000 and the first tubular element 1003 are introduced into a braiding machine, and a braided layer 1004 that covers the first tubular element 1003 is braided on the outside of the first tubular element 1003, and the third extruder extrude and cover the second tubular element 1007 of the pipe body 1000 on the outside of the braided layer 1004; and a continuous water pipe 100 is formed.

[0060] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A multi-layer composite water pipe (100), comprising a pipe body (1000), characterized in that: The pipe body (1000) is made of plastic material, and has an equally spaced extendable corrugated structure, wherein the corrugated structure defines that the pipe body (1000) includes at least one compressed configuration (1001) and at least one extended configuration (1002), and the pipe body (1000) can change its length between the compressed configuration (1001) and the extended configuration (1002); and Wherein, a first tubular element (1003) is disposed on the outer side of the pipe body (1000), and the first tubular element (1003) is made of elastic material; and An extensible braided layer (1004) is disposed on the outer side of the first tubular element (1003), the braided layer (1004) is made of a fabric material, the braided layer (1004) comprises at least two braided rope groups (1005), the braided rope group (1005) comprises at least two braided ropes (1006), the braided ropes (1006) are distributed in parallel, and the two braided rope groups (1005) are cross-wound on the first tubular element (1003) to form a continuous rhombus mesh structure; and A second tubular element (1007) is arranged on the outside of the braided layer (1004), and the second tubular element (1007) is made of elastic material. The first tubular element (1003), the braided layer (1004) and the second tubular element (1007) can all be extended or compressed in the length change direction of the pipe body (1000).

2. The multi-layer composite water pipe (100) according to claim 1, characterized in that: The length variation of the pipe body (1000) between the compression configuration (1001) and the extension configuration (1002) is 1.5-3 times of the pipe body (1000). The pipe body (1000) comprises an input end (1008) and an output end (1009). An adapter (2000) is detachably connected to the input end (1008). The pipe body (1000) has a circular cross-section, and at least a portion of the inner wall surface of the input end (1008) is provided with a first internal thread (1010).

3. The multi-layer composite water pipe (100) according to claim 2, characterized in that: The adapter (2000) comprises a first connection end (2001) and a second connection end (2002), wherein the first connection end (2001) and the second connection end (2002) both have a circular cross-section, and the first connection end (2001) and the second connection end (2002) respectively define a water inlet channel (2003) and a water outlet channel (2004) along a central axis, wherein the diameter of the water inlet channel (2003) is not less than the diameter of the water outlet channel (2004).

4. The multi-layer composite water pipe (100) according to claim 3, characterized in that: The first connection end (2001) is connected to an external water supply device, and at least one slide groove (2101) is provided on the first connection end (2001), and a buckle (2102) is provided inside the slide groove (2101). A first fastener (2103) is provided outside the first connection end (2001), and at least one slider (2104) is provided on the inner wall surface of the first fastener (2103), and the slider (2104) can slide longitudinally along the slide groove (2101) and push the buckle (2102) to be in a clamped or loosened state.

5. The multi-layer composite water pipe (100) according to claim 4, characterized in that: The second connection end (2002) is provided with a sealing sleeve (2105), the outer side of the sealing sleeve (2105) is provided with a first external thread (2106), the first internal thread (1010) is matched and connected with the first external thread (2106), so that the adapter (2000) and the pipe body (1000) form a detachable connection, the sealing sleeve (2105) has a conical opening (2107), the sealing sleeve (2105) is made of rubber material, and the outer diameter of the second connection end (2002) is not greater than the inner diameter of the pipe body (1000).

6. The multi-layer composite water pipe (100) according to claim 5, characterized in that: The adapter (2000) further comprises an annular boss (2005), the upper end of the annular boss (2005) comprises at least one fixing buckle (2201), the lower end portion of the first connection end (2001) is in communication with the annular boss (2005) and is fixedly connected via the fixing buckle (2201), the annular boss (2005) further comprises an infusion channel (2202), and the infusion channel (2202) has the same diameter as the water inlet channel (2003).

7. The multi-layer composite water pipe (100) according to claim 6, characterized in that: The annular boss (2005) further comprises a receiving end (2203), wherein the receiving end (2203) receives and limits the longitudinal sliding distance of the first fastener (2103); a connecting portion (2006) is provided at the lower end of the annular boss (2005); a water flow passage (2007) is provided inside the connecting portion (2006); the water flow passage (2007) has the same diameter as the water outlet passage (2004); the water flow passage (2007) connects the infusion passage (2202) and the water outlet passage (2004); and a second external thread (2008) is also provided on the connecting portion (2006).

8. The multi-layer composite water pipe (100) according to claim 7, characterized in that: A fastening device (3000) is provided at the connection between the input end (1008) and the adapter (2000), the fastening device (3000) comprising a fixing member (3001) and a fastener (3002) sleeved on the fixing member (3001), the fixing member (3001) and the fastener (3002) both having a cylindrical structure with a varying diameter along the axial direction; Wherein, the diameter of the fixing member (3001) is not less than the diameter of the pipe body (1000).

9. The multi-layer composite water pipe (100) according to claim 8, characterized in that: The fixing member (3001) comprises a fixing portion (3003), wherein the fixing portion (3003) comprises a plurality of clips (3004), wherein a protrusion (3005) is provided on the inner side of the clips (3004), and a gap (3006) is provided between adjacent clips (3004), and at least a portion of the inner side of the fastener (3002) is provided with a second internal thread (3007), and the second external thread (2008) is cooperatively connected with the second internal thread (3007).

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