A flexible hose assembly having an elastic braided protective sleeve and a double snap joint

Abstract

The utility model discloses a kind of elastic braided protective sleeve and telescopic water pipe group cover with double-locking joint, it is related to fluid conveying device field, comprising: joint, the number of joint is two, the joint includes quick -wired base, quick -wired base side is provided with inner core, the inner core outside is equipped with connecting sleeve, the connecting sleeve outside is equipped with sheath, the sheath is connected with quick -wired base screw thread;Inner tube, the two ends of inner tube are respectively connected with two joints, and inner tube is made of elastic material, and the inner tube is close to the one end of joint and is provided with No. 1 aluminum buckle;The utility model is fixedly connected by No. 1 aluminum buckle and No. 2 aluminum buckle respectively with the inner tube and outer tube and joint, forms a double insurance, No. 1 aluminum buckle firmly fixes inner tube in the inner core outside of joint, ensure that the connection of inner tube and joint is tight, not easy to loosen, and No. 2 aluminum buckle is fixed in the connecting sleeve outside with outer tube, further enhance the connection stability of outer tube and joint.

Description

Technical Field

[0001] This utility model relates to the field of fluid transport device technology, specifically to a telescopic water pipe assembly with an elastic braided protective sleeve and a double-locking connector. Background Technology

[0002] Telescopic water hoses, as flexible water delivery tools capable of axial and radial extension, have gradually replaced traditional rigid water hoses due to their convenient storage and flexible use. They are widely used in various fields such as home gardening, municipal greening, car washing, and agricultural irrigation. In landscaping, they can easily deliver water to every corner to meet the watering needs of flowers, trees, and shrubs. In agricultural irrigation scenarios, their length and position can be flexibly adjusted according to the irrigation requirements of different plots to achieve efficient irrigation. In the car wash industry, telescopic water hoses provide great convenience for car wash workers, as they can be stretched and retracted at will, making it convenient to clean various parts of the vehicle.

[0003] The existing connection structure of telescopic water pipes generally adopts a one-time riveting process. That is, during the assembly process, the end of the inner tube and the outer cloth sleeve are put onto the core of the metal connector together, and then aluminum buckles or plastic clamps are used to press and fix them at one time. This process seems to simplify the assembly process, but in fact there are serious structural hidden dangers. First, because the inner tube and the cloth sleeve are made of different materials and have different elastic moduli, it is difficult to ensure that the stress is evenly distributed on both during the crimping process, which can easily cause one side to loosen or be damaged. Second, when water is pumped through the pipe and pressurized, the inner tube will tend to expand outward due to the internal water pressure. If the outer cloth sleeve cannot effectively restrain or deform in coordination, a "bulge" phenomenon will form at the root of the connector, further aggravating the stress concentration in the aluminum buckle area, ultimately leading to the connector falling off or leaking. Utility Model Content

[0004] The purpose of this invention is to provide a telescopic water pipe assembly with an elastic braided protective sleeve and a double-locking connector, so as to solve the problem that the telescopic pipe connection structure in the prior art is unreliable and prone to falling off and breaking.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a telescopic water pipe assembly with an elastic braided protective sleeve and a double-locking connector, comprising:

[0006] The connector, which has two components, includes a quick-connect base, an inner core on one side of the quick-connect base, a connecting sleeve on the outer side of the inner core, and a protective sleeve on the outer side of the connecting sleeve, with the protective sleeve threadedly connected to the quick-connect base.

[0007] The inner tube is connected to two connectors at both ends. The inner tube is made of elastic material and has a No. 1 aluminum buckle at one end near the connector.

[0008] The outer tube is wrapped around the outside of the inner tube. The outer tube is woven from elastic warp yarns and non-elastic weft yarns. The surface of the outer tube is pleated. A No. 2 aluminum buckle is provided at one end of the outer tube near the connector.

[0009] Furthermore, the end of the inner tube is wrapped around the outside of the inner core, and the No. 1 aluminum buckle is set on the side of the inner tube near the inner core.

[0010] Furthermore, the No. 1 aluminum buckle is used to fix the inner tube to the outside of the inner core, and the connecting sleeve is disposed on the outside of the inner tube and the No. 1 aluminum buckle.

[0011] Furthermore, the end of the outer tube is wrapped around the outside of the connecting sleeve, and the second aluminum buckle is set on the side of the outer tube near the connecting sleeve.

[0012] Furthermore, the second aluminum buckle is used to fix the outer tube to the outside of the connecting sleeve, and the protective sleeve is set on the outside of the outer tube and the second aluminum buckle.

[0013] Furthermore, the connector is made of plastic.

[0014] Compared with existing technologies, this utility model provides a telescopic water pipe assembly with an elastic braided protective sleeve and a double-locking connector. The inner and outer pipes are fixedly connected to the connector using aluminum clips No. 1 and No. 2, forming a double layer of security. Clip No. 1 firmly fixes the inner pipe to the outer side of the connector's inner core, ensuring a tight connection that is not easily loosened. Clip No. 2 fixes the outer pipe to the outer side of the connecting sleeve, further enhancing the stability of the connection between the outer pipe and the connector. This double-locking design makes the inner and outer pipes form a single unit at the connector, improving the connection's strength. The riveting and threaded tightening assembly method involves first riveting the connector and inner tube to initially fix them together. Then, the connecting sleeve and cloth sleeve are riveted together to further strengthen the connection. Finally, the sheath and quick-connect base are tightened with threads. This multi-layered connection method makes the connection between the various components tighter, effectively withstanding the tensile, torque, and impact forces generated during water pipe use. It reduces gaps and stress concentration points at the connection points, improving the strength and stability of the connection. At the same time, this connection method also has good sealing properties, effectively preventing water leakage and ensuring the safety of use.

[0015] This application addresses the lack of elasticity in the external sleeve of existing telescopic water pipes by designing a unique elastic textile weaving process for the outer tube. The outer tube is woven with 132-136 300D warp threads and 20 52-gauge wrapped latex threads as warp threads, and 600D yarn as weft threads. From a radial expansion perspective, when the inner tube expands radially due to increased water pressure, the outer tube responds quickly, extending synchronously with the inner tube's expansion. The elastic warp threads (latex threads) in the outer tube possess excellent elasticity and resilience, allowing them to be stretched when the inner tube expands and quickly return to their original shape when the water pressure decreases and the inner tube contracts, always tightly wrapping the inner tube and providing effective protection. This radial elastic expansion... This design not only avoids excessive local stress on the inner pipe caused by the restriction of the inner pipe sleeve, reducing the risk of inner pipe damage, but also ensures smooth water flow within the pipe, improving the efficiency of water delivery. In terms of axial expansion and contraction, the pleated structure of the outer pipe plays a crucial role. When the inner pipe expands or contracts axially, the pleats adapt accordingly. As the inner pipe lengthens, the pleats gradually flatten, providing space for its extension; as the inner pipe shortens, the pleats reform, allowing the outer pipe to closely follow the inner pipe's contraction. This unique axial expansion and contraction adaptation mechanism enables the telescopic water pipe to expand and contract flexibly in various usage scenarios without twisting or knotting, improving ease of use and comfort. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0018] Figure 2 This is an exploded structural diagram provided for an embodiment of the present utility model;

[0019] Figure 3 A three-dimensional structural schematic diagram provided for an embodiment of this utility model;

[0020] Figure 4 This is a schematic diagram of the outer tube braided wire structure provided in an embodiment of the present utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Connector; 11. Quick-connect base; 12. Inner core; 13. Connecting sleeve; 14. Protective sleeve; 2. Inner tube; 21. No. 1 aluminum buckle; 3. Outer tube; 31. No. 2 aluminum buckle. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] As attached Figure 1 To be continued Figure 4 As shown:

[0025] Example 1:

[0026] This utility model provides a telescopic water pipe assembly with an elastic braided protective sleeve and a double-locking connector, comprising:

[0027] Connector 1, there are two connectors 1, connector 1 includes quick-connect base 11, quick-connect base 11 has an inner core 12 on one side, a connecting sleeve 13 is sleeved on the outside of the inner core 12, a protective sleeve 14 is sleeved on the outside of the connecting sleeve 13, and the protective sleeve 14 is threaded to quick-connect base 11.

[0028] Inner tube 2, with its two ends connected to two connectors 1 respectively. Inner tube 2 is made of elastic material. A No. 1 aluminum buckle 21 is provided at one end of inner tube 2 near connector 1.

[0029] The outer tube 3 is wrapped around the outer side of the inner tube 2. The outer tube 3 is woven from elastic warp yarns and non-elastic weft yarns. The surface of the outer tube 3 is pleated. A second aluminum buckle 31 is provided at one end of the outer tube 3 near the connector 1.

[0030] Specifically, the inner tube 2 is wrapped around the outer side of the inner core 12. Aluminum buckle 21 is set on the side of the inner tube 2 near the inner core 12. Aluminum buckle 21 is used to fix the inner tube 2 to the outside of the inner core 12. Connecting sleeve 13 is set on the outside of the inner tube 2 and aluminum buckle 21. The outer tube 3 is wrapped around the outside of the connecting sleeve 13. Aluminum buckle 31 is set on the side of the outer tube 3 near the connecting sleeve 13. Aluminum buckle 31 is used to fix the outer tube 3 to the outside of the connecting sleeve 13. Sheath 14 is set on the outside of the outer tube 3 and aluminum buckle 31. The connector 1 is made of plastic.

[0031] As shown above, the two connectors 1 are respectively set at both ends of the water pipe for connecting the water source and the nozzle. The inner tube 2 is located in the center and undertakes the functions of water delivery and expansion. The outer tube 3 wraps around the outer side of the inner tube 2, providing protection and coordinating deformation. The first aluminum buckle 21 and the second aluminum buckle 31 are used to fix the inner tube 2 and the outer tube 3. The quick-connect base 11, inner core 12, connecting sleeve 13, and protective sleeve 14 constitute the complete connector 1. In this embodiment, the inner tube 2 is made of a blend of natural latex and thermoplastic elastomer (TPE) material extruded and has excellent elastic recovery performance. The inner tube 2 serves as a water flow channel. When water is supplied and pressurized, it automatically elongates axially and expands radially synchronously. After the water supply is cut off, it recovers its original length by relying on the material's own elasticity. The outer tube 3 adopts a specific braiding process, using 132-136 300D warp threads and 20 thread... Using No. 52 backing latex yarn as the warp and 600D yarn as the weft, an outer tube 3 with radial expansion and contraction is woven together. After the outer tube 3 is woven, it is wrapped around the outside of the inner tube 2 to protect the inner tube 2 from external damage such as ultraviolet rays, friction, and punctures. It expands synchronously when the inner tube 2 expands radially, avoiding tearing caused by passive stretching of traditional non-elastic fabric sleeves. The surface has a preset pleated structure. When the inner tube 2 is stretched axially, the pleats are flattened and reformed when it shrinks, adapting to length changes. Specifically, when the length of the outer tube 3 is 2.6 times that of the inner tube 2, it can expand to 3 times its original length under a water pressure of 4-4.5 bar. When the length of the outer tube 3 is 1 time that of the inner tube 2, it can expand to 1.15-1.25 times its original length under a water pressure of 4-4.5 bar.

[0032] The quick-connect base 11 is used for quick snap-fit ​​connection with faucets and shower heads. Any commercially available model can be used. The inner core 12 is a cylindrical insert with an outer diameter slightly smaller than the inner diameter of the inner tube 2. The inner tube 2 is fitted onto its outer circumference to form a sealed insertion interface. The connecting sleeve 13 is fitted onto the outside of the inner core 12, covering the area of ​​the first aluminum buckle 21, providing an installation platform for the outer tube 3. The protective sleeve 14 is fitted over the end of the outer tube 3 and the second aluminum buckle 31, and is locked to the quick-connect base 11 by screwing on, thus compressing the entire connection area. To enhance sealing and tensile strength, the first aluminum buckle 21 is located on the outside of the connection between the end of the inner tube 2 and the inner core 12, firmly locking the inner tube 2 onto the inner core 12 to prevent slippage. It independently fixes the inner tube 2 and does not overlap with the outer tube 3. The second aluminum buckle 31 is located on the outside of the contact section between the end of the outer tube 3 and the connecting sleeve 13, used to fix the outer tube 3 onto the connecting sleeve 13, forming a second mechanical lock. It is axially offset from the first aluminum buckle 21 and does not interfere with each other, achieving separation of the inner and outer parts and step-by-step fixing.

[0033] Working principle: Insert the left end of the inner tube 2 into the outer circumference of the inner core 12 of the left connector 1. Use a hydraulic crimping machine to install the first aluminum buckle 21 at the interface to complete the mechanical locking between the inner tube 2 and the inner core 12. Slide the left end of the outer tube 3 over the area of ​​the installed first aluminum buckle 21 and cover the connecting sleeve 13. Install the second aluminum buckle 31 at the end of the outer tube 3 and fix it on the connecting sleeve 13. Put on the protective sleeve 14 and rotate and tighten it onto the quick-connect base 11. Repeat the above steps to complete the symmetrical assembly on the right end. Then connect the connectors 1 at both ends of the assembled telescopic water pipe to the water source and nozzles respectively through the quick-connect base 11. Turn on the water source, and the inner tube 2 will expand and contract radially and axially under the pressure of the water. The outer tube 3 will then expand and contract accordingly to adapt to the changes in the inner tube 2, thereby realizing the normal guidance and delivery of the water source and meeting the usage needs of different scenarios such as garden watering, irrigation, and car washing.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A telescopic water pipe assembly with an elastic braided protective sleeve and a double-locking connector, characterized in that, include: The connector (1) has two components. Each connector (1) includes a quick-connect base (11). The quick-connect base (11) has an inner core (12) on one side. A connecting sleeve (13) is fitted on the outer side of the inner core (12). A protective sleeve (14) is fitted on the outer side of the connecting sleeve (13). The protective sleeve (14) is threadedly connected to the quick-connect base (11). Inner tube (2), the two ends of the inner tube (2) are respectively connected to two connectors (1), the inner tube (2) is made of elastic material, and a No. 1 aluminum buckle (21) is provided at the end of the inner tube (2) near the connector (1); The outer tube (3) is wrapped around the outer side of the inner tube (2). The outer tube (3) is woven from elastic warp yarns and non-elastic weft yarns. The surface of the outer tube (3) is pleated. A No. 2 aluminum buckle (31) is provided at one end of the outer tube (3) near the connector (1).

2. The telescopic water pipe assembly with an elastic braided protective sleeve and a double-locking connector as described in claim 1, characterized in that, The end of the inner tube (2) is wrapped around the outside of the inner core (12), and the first aluminum buckle (21) is set on the side of the inner tube (2) near the inner core (12).

3. A telescopic water pipe assembly with an elastic braided protective sleeve and a double-locking connector as described in claim 2, characterized in that, The first aluminum buckle (21) is used to fix the inner tube (2) to the outside of the inner core (12), and the connecting sleeve (13) is set on the outside of the inner tube (2) and the first aluminum buckle (21).

4. A telescopic water pipe assembly with an elastic braided protective sleeve and a double-locking connector as described in claim 1, characterized in that, The end of the outer tube (3) is wrapped around the outside of the connecting sleeve (13), and the second aluminum buckle (31) is set on the side of the outer tube (3) near the connecting sleeve (13).

5. A telescopic water pipe assembly with an elastic braided protective sleeve and a double-locking connector as described in claim 4, characterized in that, The second aluminum buckle (31) is used to fix the outer tube (3) to the outside of the connecting sleeve (13), and the protective sleeve (14) is set on the outside of the outer tube (3) and the second aluminum buckle (31).

6. A telescopic water pipe assembly with an elastic braided protective sleeve and a double-locking connector as described in claim 1, characterized in that, The connector (1) is made of plastic.

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