A shock-resistant metal flexible hose that is not easy to detach

Abstract

This invention discloses a non-detachable, earthquake-resistant metal flexible hose, relating to the field of pipe connection technology. It includes a corrugated hose and a protective sleeve. One end of the corrugated hose is fixedly fitted with a connecting flange, and the other end is fixedly fitted with a smooth sleeve. A bolt-fixed I-beam sleeve is attached to one side of the connecting flange at one end of another corrugated hose. The core components of this invention are the corrugated hose and the I-beam sleeve. One end of the corrugated hose is externally connected to the connecting flange, which is bolted to the I-beam sleeve. The other end is fitted with a smooth sleeve. A quick-connect assembly is arranged in a circular array on the smooth sleeve. This quick-connect assembly enables rapid connection and installation of the two metal hoses, simplifying the installation process, avoiding the cumbersome operation of multiple bolts, and improving assembly efficiency. It is particularly suitable for confined spaces or situations requiring frequent disassembly and assembly, while ensuring a stable connection and sealing.

Description

Technical Field

[0001] This invention relates to the field of pipe connection technology, and in particular to a shock-resistant metal flexible hose that is not easily detached. Background Technology

[0002] Metal corrugated hoses are flexible pipes made of stainless steel or other metal materials. Their outer wall has a corrugated structure, providing excellent flexibility, pressure resistance, and corrosion resistance. They are widely used in piping systems to absorb vibration, compensate for displacement, or connect irregularly shaped pipe sections. Their inner wall can transport liquids, gases, or steam, making them suitable for high-temperature, high-pressure, or frequently moving environments. Multi-section metal corrugated hoses are typically connected using flanges.

[0003] However, in the existing technology, when connecting multi-section metal corrugated hoses using flange connections, multiple sets of bolts are usually required. The connection structure is sturdy, but disassembly and assembly are relatively cumbersome, especially in confined spaces or frequent maintenance situations, resulting in low operating efficiency. When the bolts are corroded, they are even more difficult to tighten or remove, which can easily cause thread damage or even breakage. This not only increases the workload of maintenance, but may also affect the sealing effect and service life of the hose. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that in the prior art, when connecting multi-segment metal corrugated hoses using flange connections, multiple sets of bolts are usually required. The connection structure is firm, but disassembly and assembly are relatively cumbersome, especially in confined spaces or frequent maintenance situations, resulting in low operating efficiency. When the bolts are corroded, they are even more difficult to tighten or remove, which can easily cause thread damage or even breakage. This not only increases the workload of maintenance but may also affect the sealing effect and service life of the hose. Therefore, this invention proposes a shock-resistant metal hose that is not easy to fall off.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A shock-resistant metal flexible hose that is not easy to detach includes a corrugated hose and a protective cylinder. A connecting flange is fixedly installed at one end of the corrugated hose, and a smooth cylinder is fixedly installed at the other end of the corrugated hose. An I-beam is bolted to one side of the connecting flange at one end of another corrugated hose. Quick-connect components are arranged in a circular array on the outer wall of the smooth cylinder, which enable the I-beam and the smooth cylinder to be quickly connected.

[0007] The quick-connect assembly includes a docking crossbar, an L-shaped seat, and a pulling assembly. One end of the docking crossbar is fixedly provided with a snap connector. The smooth cylinder outer wall has an L-shaped seat arranged in a circular array. The pulling assembly drives the docking crossbar to move along a plane.

[0008] The L-shaped seat includes a vertical section and a horizontal section. The outer wall of the docking crossbar has a top horizontal groove. The vertical section of the L-shaped seat is movably inserted into the top horizontal groove. The L-shaped seat is provided with a path guide component. When the two corrugated hose sections are about to dock, the path guide component drives multiple docking crossbars to avoid each other. When the two corrugated hose sections dock, it drives the two corrugated hose sections to move closer to each other. When the two corrugated hose sections are fully docked, it locks them completely.

[0009] Optionally, the traction assembly includes an I-shaped ring, an extension ring, and a driven post. An extension ring is fixedly provided at one end of the I-shaped ring. The I-shaped ring is threaded into the outer wall of the smooth cylinder. The outer wall of the extension ring has an array of holes in a circular array. A rotating lever is movably inserted into one of the array holes. A receiving screw hole is provided on the side of the extension ring. A driven post is fixedly provided at the end of the docking crossbar away from the snap-fit ​​connector. The driven post extends into the annular groove of the outer wall of the I-shaped ring.

[0010] Optionally, the path guiding component includes a rectangular block, an extension rod, a horizontal column, and a positioning limit component. The positioning limit component locks the two corrugated hoses together when they are fully connected. The connecting crossbar has a side cross groove on the side of the top cross groove, and the vertical section of the L-shaped seat has a vertical groove on the side.

[0011] Optionally, a rectangular block is movably inserted into the vertical groove of the L-shaped seat, and an installation rod is threaded into the top of the vertical section of the L-shaped seat. The installation rod is movably inserted into the center of the rectangular block, and both ends of the rectangular block extend into the side transverse groove.

[0012] Optionally, the horizontal section of the L-shaped seat is provided with a first horizontal groove, a transition groove, and a second horizontal groove in sequence. An extension rod is fixedly provided at the bottom of the connecting crossbar. A horizontal column is fixedly provided on the side of the extension rod away from the connecting crossbar. The horizontal column is movably inserted into the first horizontal groove, the transition groove, or the second horizontal groove.

[0013] Optionally, the positioning limit assembly includes a limit plate, guide posts, vertical posts, and a reversing assembly. An extension box is fixedly installed on the top of the docking crossbar. One end of the extension box is movably inserted into the limit plate. Guide posts are symmetrically fixedly installed on the side of the limit plate. The guide posts are movably inserted into the inner cavity of the extension box. The outer wall of the guide post is fixedly connected to one end of a guide spring. The other end of the guide spring is fixedly installed at the bottom of the inner cavity of the extension box.

[0014] Optionally, vertical columns are symmetrically and movably inserted into the inner cavity of the extension box on the side away from the guide column. The bottom of the vertical column overlaps the top of the horizontal section of the L-shaped seat. The reversing assembly includes a driving rack, a transition gear, and a driven rack. A common rod is fixedly provided at the bottom of the driving rack, and vertical columns are symmetrically fixedly provided at the bottom of the common rod.

[0015] Optionally, a transition gear is rotatably connected to the side of the extension box, the driving rack meshes with the transition gear, and a driven rack is stably meshed on the side of the transition gear away from the driving rack. The side of the driven rack is fixedly mounted on the top of the side of the limiting plate.

[0016] Optionally, a U-shaped component is fixedly provided on the outer wall of the smooth cylinder, and a protective cylinder is fixedly provided on the other end of the U-shaped component, with one of the connecting crossbars passing through the side of the U-shaped component.

[0017] Optionally, the I-beam has a circular array of docking notches on the same side as the docking notch, and the cross-sectional dimensions of the docking notches are the same as the cross-sectional dimensions of the snap-fit ​​connector.

[0018] Optionally, the smooth cylinder has a circular array of docking posts on its side, and the I-beam cylinder has a circular array of docking holes at one end, with the diameter of the docking posts being the same as the diameter of the docking holes.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] 1. The core components of the metal flexible hose of the present invention are a corrugated hose and an I-beam. One end of the corrugated hose is connected to a flange, which is bolted to the I-beam. The other end is provided with a smooth cylinder. The smooth cylinder has a quick-connect assembly in a circular array. The quick-connect assembly can realize the quick connection between the I-beam and the smooth cylinder, thereby realizing the quick connection and installation of the two ends of the metal hose, simplifying the installation process, avoiding the tedious operation of multiple bolts, improving assembly efficiency, and is particularly suitable for occasions with limited space or frequent disassembly and assembly, while ensuring a stable connection and sealing performance.

[0021] 2. The path guide component in this invention is a key functional structure in the quick-connect component, and a pulling component is set on the side of the path guide component. When the pulling component drives the docking crossbar to move along a plane, it plays an important technical role of "three stages and three functions" in the docking process of the metal corrugated hose through cooperation with the L-shaped seat and the docking crossbar.

[0022] When two sections of corrugated metal hose are about to be docked, the path guiding component first guides and controls multiple docking crossbars to actively avoid them from their initial locked state, providing sufficient space for the two hose sections to approach each other and avoiding interference problems such as jamming and collision during the docking process.

[0023] 3. As the docking action progresses, the path guide component moves along its set trajectory. At this time, it not only maintains the movement of the docking crossbar, but also generates a "dragging and guiding force" on the section of hose that has not yet been positioned through the linkage with the L-shaped seat and the smooth cylinder. During this process, the guiding structure of the path guide component will gradually pull or push one section of corrugated hose to the docking area where the other section of hose is located, so that the two sections of corrugated hose approach each other until they are aligned. This process does not rely on manual alignment or moving of hoses, which improves docking accuracy and is particularly suitable for application scenarios where the pipe position is fixed or the installation environment is confined.

[0024] 4. After the two corrugated hose sections are fully connected through the path guide assembly, the path guide assembly enters the final stage. Its guide structure controls the connection crossbar to return to the locking path. The path guide assembly also includes a positioning limit assembly. When the clamp on the connection crossbar is inserted into the matching slot or the limiting structure, the positioning limit assembly will automatically cooperate with the clamp due to linkage, clamping the I-beam and the smooth cylinder head together, thereby realizing the automatic locking and sealing connection of the two corrugated hose sections, ensuring the stability and sealing of the joint, and preventing the risk of leakage or loosening due to improper operation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 for Figure 1 Another perspective structural diagram.

[0027] Figure 3 This is a structural diagram of the quick-connect assembly and its connectors.

[0028] Figure 4 for Figure 3 Another perspective structural diagram.

[0029] Figure 5 for Figure 1 A schematic diagram of the structure after removing the protective cylinder.

[0030] Figure 6 This is a structural diagram of the L-shaped seat and its connecting parts.

[0031] Figure 7 for Figure 3 Another perspective structural diagram.

[0032] Figure 8 for Figure 4 A partial cross-sectional view of the extension box.

[0033] Figure 9 A schematic diagram of the structure of the positioning limit component.

[0034] Figure 10This is a structural diagram of the protective cylinder and its connecting parts.

[0035] In the diagram: 1. Connecting flange; 2. Corrugated hose; 3. I-beam; 4. Connecting notch; 5. Connecting hole; 6. Snap-fit ​​connector; 7. Limiting plate; 71. Guide post; 8. Extension rod; 81. Horizontal post; 9. L-shaped seat; 91. First transverse groove; 92. Transition inclined groove; 93. Second transverse groove; 10. Extension box; 11. Connecting crossbar; 110. Side transverse groove; 111. Top transverse groove; 112. Driven post; 12. Extension ring; 13. Receiving screw hole; 14. Rotating lever; 15. Array hole; 16. I-beam ring; 161. Smooth cylinder; 1610. Connecting post; 17. Vertical groove; 18. Rectangular block; 19. Mounting rod; 20. Vertical post; 21. Guide spring; 22. Driven rack; 23. Transition gear; 24. Driving rack; 25. Common rod; 26. Protective cylinder; 27. U-shaped part. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0037] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0038] Reference Figure 1-10 A shock-resistant metal flexible hose that is not easy to detach includes a corrugated hose 2 and a protective cylinder 26. One end of the corrugated hose 2 is fixedly provided with a connecting flange 1, and the other end of the corrugated hose 2 is fixedly provided with a smooth cylinder 161. In order to improve the impact resistance of the corrugated hose 2, a protective cloth made of metal wire is fixedly provided on the outer wall of the corrugated hose 2 between the smooth cylinder 161 and the connecting flange 1 (not shown in the figure). On one side of the connecting flange 1 at one end of the other corrugated hose 2, an I-beam cylinder 3 is fixedly provided with bolts. The outer wall of the smooth cylinder 161 has a circular array of quick-connect components, which enable the I-beam cylinder 3 to quickly connect with the smooth cylinder 161.

[0039] The quick-connect assembly includes a docking crossbar 11, an L-shaped seat 9, and a pulling assembly. A snap-fit ​​connector 6 is fixedly provided at one end of the docking crossbar 11. The smooth cylinder 161 has an L-shaped seat 9 arranged in a circular array on its outer wall. The pulling assembly drives the docking crossbar 11 to move along a plane. The pulling assembly includes an I-shaped ring 16, an extension ring 12, and a driven post 112. An extension ring 12 is fixedly provided at one end of the I-shaped ring 16. The I-shaped ring 16 is screwed into the outer wall of the smooth cylinder 161. The outer wall of the smooth cylinder 161 has an external thread at a corresponding position.

[0040] The outer wall of the extension ring 12 has a circular array of array holes 15, one of which is movably inserted with a rotating lever 14. The side of the extension ring 12 has a receiving screw hole 13. The diameter of the array hole 15 is larger than the diameter of the receiving screw hole 13 and the diameter of the rotating lever 14. One end of the rotating lever 14 is provided with an external thread. One end of the rotating lever 14 can be screwed into the outer wall of the receiving screw hole 13, thereby being stored and attached to the outer wall of the pipe, reducing the space occupied by the entire pulling assembly, and preventing the rotating lever 14 from being lost.

[0041] The user can insert one end of the rotating lever 14 into any of the array holes 15 on the outer wall of the extension ring 12 to drive the I-ring 16 to rotate using the lever principle. Since the I-ring 16 is screwed into the outer wall of the smooth cylinder 161, the I-ring 16 will move along the outer wall of the smooth cylinder 161. The end of the connecting crossbar 11 away from the snap joint 6 is fixedly provided with a driven post 112. The driven post 112 extends into the annular groove on the outer wall of the I-ring 16. Therefore, when the I-ring 16 moves, the driven post 112 will move along with it. In addition, the annular groove on the outer wall of the I-ring 16 is deep enough and the length of the driven post 112 is set appropriately, allowing the driven post 112 to move radially along the I-ring 16 within a certain range and follow the I-ring 16 to move along the axial direction.

[0042] The L-shaped seat 9 includes a vertical section and a horizontal section. A top horizontal groove 111 is provided on the outer wall of the connecting crossbar 11. The vertical section of the L-shaped seat 9 is movably inserted into the top horizontal groove 111. A path guide component is provided on the L-shaped seat 9. When the two corrugated hose sections 2 are about to be connected, the path guide component drives multiple connecting crossbars 11 to avoid each other. When the two corrugated hose sections 2 are connected, the path guide component drives the two corrugated hose sections 2 to move closer to each other. When the two corrugated hose sections 2 are fully connected, the two are fully locked. A U-shaped part 27 is fixedly provided on the outer wall of the smooth cylinder 161. A protective cylinder 26 is fixedly provided at the other end of the U-shaped part 27. One of the connecting crossbars 11 passes through the side of the U-shaped part 27. The protective cylinder 26 provides physical protection for the quick-connect component and the path guide component.

[0043] The path guiding component includes a rectangular block 18, an extension rod 8, a horizontal column 81, and a positioning limit component. The positioning limit component locks the two corrugated hoses 2 together when they are fully connected. The connecting crossbar 11 has a side cross groove 110 on the side of the top cross groove 111. The vertical section of the L-shaped seat 9 has a vertical groove 17 on the side. The rectangular block 18 is movably inserted into the vertical groove 17 of the L-shaped seat 9. The mounting rod 19 is threaded into the top of the vertical section of the L-shaped seat 9. The mounting rod 19 is movably inserted into the center of the rectangular block 18. Both ends of the rectangular block 18 extend into the side cross groove 110. Therefore, when the connecting crossbar 11 is pulled laterally by the pulling component, it can only move in a direction parallel to the horizontal section of the L-shaped seat 9 or in a direction parallel to the vertical section of the L-shaped seat 9.

[0044] The horizontal section of the L-shaped seat 9 has a first horizontal groove 91, a transition groove 92, and a second horizontal groove 93 sequentially opened on its side. An extension rod 8 is fixedly installed at the bottom of the connecting crossbar 11. A horizontal column 81 is fixedly installed on the side of the end of the extension rod 8 away from the connecting crossbar 11. The horizontal column 81 is movably inserted into the first horizontal groove 91, the transition groove 92, or the second horizontal groove 93.

[0045] The positioning limit assembly includes a limit plate 7, a guide post 71, a vertical post 20, and a reversing assembly. An extension box 10 is fixedly installed on the top of the docking crossbar 11. One end of the extension box 10 is movably inserted into the limit plate 7. Guide posts 71 are symmetrically fixed on the side of the limit plate 7. The guide posts 71 are movably inserted into the inner cavity of the extension box 10. The outer wall of the guide post 71 is fixedly connected to one end of the guide spring 21. The other end of the guide spring 21 is fixedly installed at the bottom of the inner cavity of the extension box 10. When the guide spring 21 is at its original length, the end of the limit plate 7 near the corrugated hose 2 is flush with the bottom of the docking crossbar 11.

[0046] A vertical column 20 is symmetrically inserted into the inner cavity of the extension box 10 on the side away from the guide column 71. The bottom of the vertical column 20 overlaps the top of the horizontal section of the L-shaped seat 9. The reversing assembly includes a driving rack 24, a transition gear 23, and a driven rack 22. A common rod 25 is fixedly installed at the bottom of the driving rack 24, and the vertical columns 20 are symmetrically fixedly installed at the bottom of the common rod 25. The transition gear 23 is rotatably connected to the side of the extension box 10. The driving rack 24 meshes with the transition gear 23, and the driven gear is stably meshed on the side of the transition gear 23 away from the driving rack 24. The rod 22 and the driven gear 22 are fixedly installed on the top side of the limiting plate 7. When the connecting crossbar 11 is pulled close to the horizontal section of the L-shaped seat 9 by the traction assembly, the bottom end of the vertical column 20 moves horizontally along the top of the horizontal section of the L-shaped seat 9 and is forced to move upward. Through the common rod 25 and the driving gear 24, the transition gear 23 is driven to rotate. The transition gear 23 transmits the displacement of the vertical column 20 in the opposite direction to the driven gear 22. The driven gear 22 drives the limiting plate 7 to extend and cooperate with the snap-fit ​​connector 6 to hug the head of the I-beam 3 and one end of the smooth cylinder 161.

[0047] The I-beam tube 3 has a circular array of docking notches 4 on the same side as the docking notch 4. The cross-sectional dimensions of the docking notch 4 are the same as the cross-sectional dimensions of the snap connector 6. The smooth tube 161 has a circular array of docking posts 1610 on its side. The I-beam tube 3 has a circular array of docking holes 5 at one end. The diameter of the docking posts 1610 is the same as the diameter of the docking holes 5. When the docking posts 1610 and the docking holes 5 are docked, the snap connector 6 and the docking notch 4 are aligned along the central axis of the corrugated hose 2.

[0048] The specific implementation steps and principles of this invention are as follows:

[0049] Phase 1: Docking Preparation Phase - Guiding and Avoiding Obstacles to Ensure Docking Space;

[0050] When the two sections of corrugated metal hose 2 are about to be connected, the three horizontal columns 81 are located at one end inside the first horizontal groove 91. At this time, the three connecting crossbars 11 are far away from the center of the corrugated hose 2. The connecting hole 5 of the I-beam 3 at one end of one section of the corrugated hose 2 is manually inserted into the connecting column 1610 of the other section of the corrugated hose 2. Visually, one end of the I-beam 3 is in contact with one end of the smooth cylinder 161, and the bottom of the three limiting plates 7 is completely parallel to the bottom surface of the connecting crossbar 11.

[0051] Phase Two: Docking in Progress - Automatic guidance and precise approach assistance;

[0052] The I-shaped ring 16 is continuously rotated by the lever 14. Since the I-shaped ring 16 is screwed into the outer wall of the smooth cylinder 161, it will move along the outer wall of the smooth cylinder 161. The I-shaped ring 16 will drive the driven column 112 to pull the connecting crossbar 11 to move. At this time, the horizontal column 81 moves along the first horizontal groove 91, the transition inclined groove 92, and the second horizontal groove 93. Due to the setting of the rectangular block 18, the vertical groove 17, and the top horizontal groove 111, the connecting crossbar 11 can only move along the axis of the corrugated hose 2 or longitudinally.

[0053] When the horizontal column 81 begins to move to the second transverse groove 93, the snap-fit ​​connector 6 has entered the docking notch 4 and fits against the side of the docking notch 4. During this process, as the docking crossbar 11 approaches the horizontal section of the L-shaped seat 9, the bottom end of the vertical column 20 moves horizontally along the top of the horizontal section of the L-shaped seat 9 and is forced to move upward. Through the common rod 25 and the active gear 24, the transition gear 23 is driven to rotate. The transition gear 23 transmits the displacement of the vertical column 20 in the opposite direction to the driven gear 22. The driven gear 22 drives the limiting plate 7 to extend and cooperate with the snap-fit ​​connector 6 to hug the head of the I-beam 3 and one end of the smooth cylinder 161.

[0054] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A shock-resistant metal flexible hose that is not easily detached, comprising a corrugated hose and a protective sleeve, characterized in that, One end of the corrugated hose is fixedly provided with a docking flange, and the other end of the corrugated hose is fixedly provided with a smooth cylinder. One side of the docking flange at one end of the other corrugated hose is fixed with an I-beam cylinder by bolts. The outer wall of the smooth cylinder has a circular array of quick-connect components, which enable the I-beam cylinder and the smooth cylinder to quickly connect. The quick-connect assembly includes a docking crossbar, an L-shaped seat, and a pulling assembly. One end of the docking crossbar is fixedly provided with a snap connector. The smooth cylinder outer wall has an L-shaped seat arranged in a circular array. The pulling assembly drives the docking crossbar to move along a plane. The L-shaped seat includes a vertical section and a horizontal section. The outer wall of the docking crossbar is provided with a top horizontal groove. The vertical section of the L-shaped seat is movably inserted into the top horizontal groove. The L-shaped seat is provided with a path guide component. When the two corrugated hoses are about to dock, the path guide component drives multiple docking crossbars to avoid each other. When the two corrugated hoses dock, it drives the two corrugated hoses to move closer to each other. When the two corrugated hoses are fully docked, it locks them completely. The path guiding component includes a rectangular block, an extension rod, a horizontal column, and a positioning limit component. The positioning limit component locks the two corrugated hose sections together when they are fully connected. The connecting crossbar has a side transverse groove on the side of the top transverse groove, and the vertical section of the L-shaped seat has a vertical groove on the side. A rectangular block is movably inserted into the vertical groove of the L-shaped seat. An installation rod is threaded into the top of the vertical section of the L-shaped seat. The installation rod is movably inserted into the center of the rectangular block. Both ends of the rectangular block extend into the side transverse groove. The horizontal section of the L-shaped seat has a first transverse groove, a transition groove, and a second transverse groove sequentially on its side. An extension rod is fixedly installed at the bottom of the connecting crossbar. A horizontal column is fixedly installed on the side of the extension rod away from the connecting crossbar. The horizontal column is movably inserted into the first transverse groove, the transition groove, or the second transverse groove.

2. The shock-resistant metal flexible hose that is not easily detached according to claim 1, characterized in that, The traction assembly includes an I-shaped ring, an extension ring, and a driven post. An extension ring is fixedly provided at one end of the I-shaped ring. The I-shaped ring is screwed into the outer wall of the smooth cylinder. The outer wall of the extension ring has an array of holes in a circular pattern. A rotating lever is movably inserted into one of the array holes. A receiving screw hole is provided on the side of the extension ring. A driven post is fixedly provided at the end of the docking crossbar away from the snap-fit ​​connector. The driven post extends into the annular groove of the outer wall of the I-shaped ring.

3. The shock-resistant metal flexible hose that is not easily detached according to claim 2, characterized in that, The positioning limit assembly includes a limit plate, guide posts, vertical posts, and a reversing assembly. An extension box is fixedly installed on the top of the docking crossbar. One end of the extension box is movably inserted into the limit plate. Guide posts are symmetrically fixedly installed on the side of the limit plate. The guide posts are movably inserted into the inner cavity of the extension box. The outer wall of the guide post is fixedly connected to one end of a guide spring. The other end of the guide spring is fixedly installed at the bottom of the inner cavity of the extension box.

4. The shock-resistant metal flexible hose that is not easily detached according to claim 3, characterized in that, The extension box has vertical columns symmetrically inserted into its inner cavity on the side away from the guide column. The bottom of the vertical columns overlaps the top of the horizontal section of the L-shaped seat. The reversing assembly includes a drive rack, a transition gear, and a driven rack. A common rod is fixedly installed at the bottom of the drive rack, and vertical columns are symmetrically fixedly installed at the bottom of the common rod.

5. The shock-resistant metal flexible hose that is not easily detached according to claim 4, characterized in that, The side of the extension box is rotatably connected to a transition gear, the driving rack meshes with the transition gear, and the side of the transition gear away from the driving rack is stably meshed with a driven rack. The side of the driven rack is fixedly mounted on the top of the side of the limiting plate.

6. The shock-resistant metal flexible hose that is not easily detached according to claim 1, characterized in that, A U-shaped component is fixedly installed on the outer wall of the smooth cylinder, and a protective cylinder is fixedly installed at the other end of the U-shaped component, with one of the connecting crossbars passing through the side of the U-shaped component.

7. The shock-resistant metal flexible hose that is not easily detached according to claim 1, characterized in that, The I-beam has a circular array of docking notches on the same side as the docking notch, and the cross-sectional dimensions of the docking notches are the same as the cross-sectional dimensions of the snap-fit ​​connector.

8. The shock-resistant metal flexible hose that is not easily detached according to claim 1, characterized in that, The smooth cylinder has a circular array of docking posts on its side, and the I-beam cylinder has a circular array of docking holes at one end. The diameter of the docking posts is the same as the diameter of the docking holes.

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