A metal-clad flexible tube with an inner and outer layer reinforced interlocking structure

Abstract

This utility model relates to the field of gas transmission technology and discloses a metal-coated flexible hose with an inner and outer layer reinforced interlocking structure. It includes two outer tubes and a fastening ring. A common protective mechanism is provided between adjacent outer walls of the two outer tubes to protect the connection point. A connecting mechanism is provided inside the fastening ring. A support mechanism is provided in the middle of the outer walls of both outer tubes to support the outer tubes. The protective mechanism includes two protective covers. In this utility model, the two protective covers are attached to the adjacent connection point of the outer tubes. A pin is pushed along the mounting plate and slid into the insertion hole. A retaining ring restricts excessive insertion of the pin. During disassembly, the mounting assembly is released, the pin exits the insertion hole, and the protective covers are removed. This effectively protects the connection point of the outer tubes, preventing damage from external factors and improving the overall structural reliability of the metal-coated flexible hose.

Description

Technical Field

[0001] This utility model relates to the field of gas transmission technology, and in particular to a metal-coated flexible hose with an inner and outer layer reinforced interlocking structure. Background Technology

[0002] The metal-clad hose with an inner and outer reinforced interlocking structure is a special type of hose. It consists of an inner rubber composite hose, a middle reinforcing layer, and an outer flexible metal cladding layer. The inner rubber hose is used to transport the medium, while the outer layer is a metal sheath, which is a steel strip or steel wire braided mesh. The outer coating layer can protect the inner rubber hose from external mechanical damage.

[0003] Existing metal-clad flexible hoses with reinforced inner and outer interlocking structures, through multi-layer composite design, can effectively avoid the risk of rupture under high pressure and the common interlayer separation problem of flexible pipes. However, existing interlocking structures mostly adopt a continuous interlocking design, and the gaps in the interlocking parts are prone to accumulating moisture and dust impurities. In humid or corrosive environments, this can cause localized electrochemical corrosion, leading to rust and loosening of the interlocking points. This results in the risk of media leakage and structural strength degradation of the hose during long-term dynamic use, reducing its reliability in complex environments. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a metal-clad flexible hose with an inner and outer layer reinforced interlocking structure. It aims to improve the problem that the gaps in the interlocking parts of the existing technology are prone to accumulating moisture and dust, which can cause local electrochemical corrosion in humid or corrosive environments, leading to rust and loosening of the interlocking points. This results in the risk of medium leakage and structural strength reduction in the hose during long-term dynamic use, thus reducing its reliability in complex environments.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a metal-coated flexible tube with an inner and outer layer reinforced interlocking structure, comprising two outer tubes and a fastening ring, wherein the same protective mechanism is provided between adjacent outer walls of the two outer tubes, the protective mechanism being used to protect the connection point of the two outer tubes, a connecting mechanism being provided inside the fastening ring, and a support mechanism being provided in the middle of the outer walls of the two outer tubes, the support mechanism being used to support the outer tubes;

[0006] The protective mechanism includes two protective covers. Multiple mounting plates are fixedly connected to the opposite sides of the two protective covers. Pins are slidably connected to the opposite sides of the multiple mounting plates. Two fixing rings are fixedly connected to the outer walls of the multiple pins. Multiple insertion holes are opened between adjacent outer walls of the two outer tubes. Mounting components are provided around the outer walls of the two protective covers. Positioning components are provided around the inner perimeter of the two protective covers. Pulling components are provided on the opposite sides of the multiple pins.

[0007] As a further description of the above technical solution:

[0008] The support mechanism includes two support rings, the interiors of which are respectively installed in the middle of the outer walls of the two outer tubes. Each of the two outer tubes has a limiting ring fixedly connected to its middle outer wall. Each of the two limiting rings has a slot inside. Each of the two support rings has a mounting bracket fixedly connected to its top outer wall. Each of the two mounting brackets has expansion bolts installed at the four corners of its top.

[0009] As a further description of the above technical solution:

[0010] The installation assembly includes multiple fixing blocks, which are respectively fixedly connected to the outer wall of the right protective cover. Each of the multiple fixing blocks is fixedly connected to a snap-fit ​​hose on the left side, and multiple snap-fit ​​plates are fixedly connected to the outer wall of the left protective cover.

[0011] As a further description of the above technical solution:

[0012] The positioning component includes multiple positioning posts, with the opposite sides of the multiple positioning posts fixedly connected to the inner periphery of the right protective cover, and positioning blocks fixedly connected to the inner periphery of the left protective cover.

[0013] As a further description of the above technical solution:

[0014] The pulling assembly includes multiple circular plates, which are respectively fixedly connected to each other on the opposite side of multiple pins, and each opposite side of the multiple circular plates is fixedly connected to a pull ring.

[0015] As a further description of the above technical solution:

[0016] The connecting mechanism includes two retaining rings, which are respectively fixedly connected to the interior of two adjacent outer tubes. The inside of the fastening ring is provided with a locking groove. Two connecting blocks are fixedly connected to the top of the fastening ring. A fixing bolt passes through the front side of the front connecting block. The rear side of the outer wall of the fixing bolt is threaded to the interior of the rear connecting block. A sealing component is provided between the adjacent two outer tubes.

[0017] As a further description of the above technical solution:

[0018] The sealing assembly includes a sealing ring, the outer wall of which is fixedly connected to the right side of the left outer tube, and a sealing groove is provided on the left side of the right outer tube.

[0019] As a further description of the above technical solution:

[0020] Both outer tubes are equipped with inner flexible tubes, and the outer walls of both inner flexible tubes are fixedly connected with two locking rings. Both outer tubes have two locking grooves inside.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, two protective covers are attached to the adjacent connection of the outer tube, and the pin is pushed to slide along the mounting plate and inserted into the socket. The fixing ring restricts the excessive insertion of the pin. When disassembling, the mounting component is released, the component is pulled to drive the pin out of the socket, and the protective cover is removed. This achieves effective protection of the connection of the outer tube, is convenient to install and disassemble, ensures the stability of the connection, avoids damage to the connection by external factors, and improves the overall structural reliability of the metal-coated flexible hose.

[0023] 2. In this utility model, the support ring is fitted onto the middle of the outer wall of the outer tube to make it fit with the limiting ring, thus achieving initial positioning. The position is then fixed by the cooperation of the support ring and the slot. The expansion bolts on the top of the mounting bracket are used to fix it to the support surface. When adjustment is needed, the bolts are loosened, the support ring is moved, and then it is re-fixed. This achieves stable support for the outer tube, preventing it from shaking or shifting due to its own weight or external force. The support position can be flexibly adjusted, the installation is stable, and the structural stability of the metal-coated hose is guaranteed during use. Attached Figure Description

[0024] Figure 1 This is a perspective view of a metal-clad flexible tube with an inner and outer layer reinforced interlocking structure proposed in this utility model;

[0025] Figure 2 This is a front view of a metal-coated flexible tube with an inner and outer layer reinforced interlocking structure proposed in this utility model;

[0026] Figure 3 This is an exploded view of the protective mechanism in a metal-coated flexible tube with an inner and outer layer reinforced interlocking structure proposed in this utility model;

[0027] Figure 4 This is an exploded view of the connecting mechanism in a metal-coated flexible tube with an inner and outer layer reinforced interlocking structure proposed in this utility model;

[0028] Figure 5 This is an exploded view of the support mechanism in a metal-coated flexible tube with an inner and outer layer reinforced interlocking structure proposed in this utility model.

[0029] Legend:

[0030] 1. Outer tube; 2. Protective mechanism; 21. Protective cover; 22. Mounting plate; 23. Pin; 24. Retaining ring; 25. Insertion hole; 26. Mounting assembly; 261. Fixing block; 262. Snap-fit ​​hose; 263. Clamping plate; 27. Positioning assembly; 271. Positioning post; 272. Positioning block; 28. Pulling assembly; 281. Circular plate; 282. Pull ring; 3. Fastening ring; 4. Connecting mechanism; 41. Snap-fit ​​groove one; 42. Snap ring; 43. Connecting block; 44. Fixing bolt; 45. Sealing assembly; 451. Sealing ring; 452. Sealing groove; 5. Support mechanism; 51. Support ring; 52. Limiting ring; 53. Snap-fit ​​groove; 54. Mounting bracket; 55. Expansion bolt; 6. Inner hose; 7. Snap-fit ​​ring; 8. Snap-fit ​​groove two. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 , Figure 2 and Figure 3 An embodiment of this utility model is provided: a metal-coated flexible tube with an inner and outer layer reinforced interlocking structure, including two outer tubes 1 and a fastening ring 3. The outer walls of the two outer tubes 1 are each provided with the same protection mechanism 2, which is used to protect the connection between the two outer tubes 1. A connecting mechanism 4 is provided inside the fastening ring 3. A support mechanism 5 is provided in the middle of the outer walls of the two outer tubes 1, which is used to support the outer tubes 1.

[0033] The protective mechanism 2 includes two protective covers 21. Multiple mounting plates 22 are fixedly connected to the opposite sides of the two protective covers 21. Pins 23 are slidably connected to the opposite sides of the multiple mounting plates 22. Two fixing rings 24 are fixedly connected to the outer walls of the multiple pins 23. Multiple insertion holes 25 are opened between adjacent outer walls of the two outer tubes 1. Mounting components 26 are provided around the outer walls of the two protective covers 21. Positioning components 27 are provided around the inner perimeter of the two protective covers 21. Pulling components 28 are provided on the opposite sides of the multiple pins 23.

[0034] Specifically, when installing the protective mechanism 2, the two protective covers 21 are attached to the adjacent connection points of the two outer tubes 1. The positioning component 27 is used to precisely align the two protective covers 21. The pin 23 is pushed to slide along the mounting plate 22, allowing the pin 23 to pass through its end and insert into the corresponding insertion hole 25. The fixing ring 24 contacts the side of the mounting plate 22 closest to it, preventing the pin 23 from being over-inserted. The mounting component 26 is used to fix the adjacent sides of the two protective covers 21, completing the installation of the protective mechanism 2. When the protective mechanism 2 needs to be disassembled, the mounting component 26 is operated to release the fixation of the two protective covers 21. The pulling component 28 is pulled to cause the pin 23 to slide in the opposite direction along the mounting plate 22, allowing the pin 23 to exit from the insertion hole 25, and the two protective covers 21 can then be removed.

[0035] The protective cover 21 is precisely positioned by cooperating with the positioning component 27; the protective cover 21 is fixed to the outer tube 1 by cooperating with the pin 23 and the socket 25; and the two protective covers 21 are connected and fixed by the mounting component 26, so that the protection mechanism 2 can protect the connection of the two outer tubes 1.

[0036] Reference Figure 2 and Figure 5 The support mechanism 5 includes two support rings 51. The interior of the two support rings 51 is respectively installed in the middle of the outer wall of the two outer tubes 1. Limiting rings 52 are fixedly connected to the middle of the outer wall of the two outer tubes 1. The interior of the two limiting rings 52 is provided with a slot 53. Mounting brackets 54 are fixedly connected to the top of the outer wall of the two support rings 51. Expansion bolts 55 are installed at the four corners of the top of the two mounting brackets 54.

[0037] Specifically, when installing the support mechanism 5, two support rings 51 are respectively fitted onto the middle of the outer wall of the two outer tubes 1, so that the support rings 51 fit against the limiting rings 52. The limiting rings 52 play a preliminary limiting role on the support rings 51, preventing the support rings 51 from sliding freely along the outer wall of the outer tube 1. Through the cooperation of the support rings 51 and the slots 53, the position of the support rings 51 on the outer wall of the outer tube 1 is further fixed, ensuring that the support rings 51 are installed stably.

[0038] Using the expansion bolts 55 at the four corners of the top of the mounting bracket 54, the mounting bracket 54 is fixed to the preset support surface. The expansion bolts 55 are tightly connected to the support surface through their own expansion, thereby stably supporting the support ring 51 and the outer tube 1 at this position, preventing the outer tube 1 from shaking or shifting due to its own weight or external force during use. When it is necessary to adjust the support position, loosen the expansion bolts 55, release the mounting bracket 54 from the support surface, move the support ring 51 along the outer wall of the outer tube 1 to a suitable position, and then re-fix the expansion bolts 55 according to the above steps.

[0039] The support ring 51 is initially positioned by cooperating with the limiting ring 52; the position of the support ring 51 is fixed by cooperating with the slot 53; and the outer tube 1 is stably supported by cooperating with the mounting bracket 54 and the expansion bolt 55, so that the support mechanism 5 can effectively support the outer tube 1.

[0040] Reference Figure 3 The mounting component 26 includes multiple fixing blocks 261, which are fixedly connected to the outer wall of the right protective cover 21. Each of the multiple fixing blocks 261 has a locking hose 262 fixedly connected to its left side. Each of the left protective cover 21 has a locking plate 263 fixedly connected to its outer wall. The positioning component 27 includes multiple positioning posts 271, which are fixedly connected to the inner periphery of the right protective cover 21 on opposite sides. Each of the left protective cover 21 has a positioning block 272 fixedly connected to its inner periphery. The pulling component 28 includes multiple circular plates 281, which are fixedly connected to the outer periphery of multiple pins 23 on opposite sides. Each of the multiple circular plates 281 has a pull ring 282 fixedly connected to its outer periphery.

[0041] Specifically, when installing the protective cover 21, align the positioning post 271 of the right protective cover 21 with the positioning block 272 of the left protective cover 21 so that the two cooperate to achieve precise positioning of the two protective covers 21. Push the two protective covers 21 closer to each other, and the locking hose 262 on the right fixing block 261 contacts and locks with the left locking plate 263 to connect and fix the two protective covers 21.

[0042] The pin 23 on the mounting plate 22 is inserted into the insertion hole 25 of the outer tube 1. The fixing ring 24 restricts the position of the pin 23. When disassembly is required, pull the pull ring 282 to move the round plate 281 and the pin 23, so that the pin 23 is removed from the insertion hole 25. Then separate the locking hose 262 and the locking plate 263 to separate the two protective covers 21.

[0043] The positioning pin 271 and the positioning block 272 work together to achieve precise positioning of the protective cover 21; the locking hose 262 and the locking plate 263 work together to connect and fix the two protective covers 21; the pull ring 282 and the round plate 281 work together to facilitate the pulling of the pin 23, ensuring the stable installation and disassembly of the protection mechanism 2.

[0044] Reference Figure 4 and Figure 5The connecting mechanism 4 includes two retaining rings 42, which are fixedly connected to the adjacent outer tubes 1 respectively. The fastening ring 3 has a first engagement groove 41 inside. The top of the fastening ring 3 is fixedly connected to two connecting blocks 43. The front side of the front connecting block 43 is penetrated by a fixing bolt 44. The rear side of the outer wall of the fixing bolt 44 is threadedly connected to the interior of the rear connecting block 43. A sealing assembly 45 is provided between the adjacent outer tubes 1. The sealing assembly 45 includes a sealing ring 451. The outer wall of the sealing ring 451 is fixedly connected to the right side of the left outer tube 1. A sealing groove 452 is provided on the left side of the right outer tube 1. An inner hose 6 is provided inside the two outer tubes 1. Two retaining rings 7 are fixedly connected to the outer walls of the two inner hoses 6. Two second engagement grooves 8 are provided inside the two outer tubes 1.

[0045] Specifically, when connecting the two outer tubes 1, align the sealing ring 451 of the left outer tube 1 with the sealing groove 452 of the right outer tube 1 so that the two fit together to achieve a preliminary seal. Align the retaining rings 42 of the two outer tubes 1, put on the fastening ring 3, so that the retaining ring 42 is embedded in the retaining groove 41 of the fastening ring 3. Rotate the fixing bolt 44 so that it passes through the front connecting block 43 and is threadedly connected to the rear connecting block 43 until the two connecting blocks 43 fit together tightly. The relative position of the two outer tubes 1 is fixed by the cooperation of the fastening ring 3 and the retaining ring 42.

[0046] When installing the inner hose 6, align the retaining ring 7 of the inner hose 6 with the retaining groove 2 8 of the outer tube 1, and push the inner hose 6 so that the retaining ring 7 is inserted into the retaining groove 2 8 to fix the inner hose 6 and the outer tube 1. When disassembly is required, rotate the fixing bolt 44 in the opposite direction to disengage it from the rear connecting block 43, remove the fastening ring 3, separate the two outer tubes 1, and the sealing ring 451 will come out from the sealing groove 452. Then pull the inner hose 6 to disengage the retaining ring 7 from the retaining groove 2 8, and the inner hose 6 can be removed.

[0047] The outer tube 1 is connected to the fastening ring 3 by the engagement of the retaining ring 42 and the first retaining groove 41; the fastening ring 3 is fixed by the engagement of the fixing bolt 44 and the connecting block 43; the two outer tubes 1 are sealed by the engagement of the sealing ring 451 and the sealing groove 452; the inner hose 6 is fixed to the outer tube 1 by the engagement of the retaining ring 7 and the second retaining groove 8, so that the connecting mechanism 4 can connect and fix the two outer tubes 1.

[0048] Working principle: When connecting two outer tubes 1, first operate the connecting mechanism 4, align the sealing ring 451 of the left outer tube 1 with the sealing groove 452 of the right outer tube 1, so that the two fit together to achieve a preliminary seal. Align the retaining rings 42 of the two outer tubes 1, put on the fastening ring 3, so that the retaining ring 42 is embedded in the retaining groove 41 of the fastening ring 3. Rotate the fixing bolt 44 so that it passes through the front connecting block 43 and is threadedly connected to the rear connecting block 43 until the two connecting blocks 43 fit tightly together. The relative position of the two outer tubes 1 is fixed by the cooperation of the fastening ring 3 and the retaining ring 42. Then install the inner hose 6, align the retaining ring 7 of the inner hose 6 with the retaining groove 8 of the outer tube 1, push the inner hose 6 so that the retaining ring 7 is embedded in the retaining groove 8, and fix the inner hose 6 to the outer tube 1.

[0049] Next, install the protective mechanism 2, attaching the two protective covers 21 to the adjacent connection points of the two outer tubes 1. Align the positioning post 271 of the right protective cover 21 with the positioning block 272 of the left protective cover 21, so that the two cooperate to achieve precise positioning of the two protective covers 21. Push the pin 23 to slide along the mounting plate 22, so that the pin 23 passes through the end and inserts into the corresponding insertion hole 25. The fixing ring 24 contacts the side of the mounting plate 22 that is close to it, preventing the pin 23 from being over-inserted. Push the two protective covers 21 closer to each other, and the locking hose 262 on the right fixing block 261 contacts and locks with the left locking plate 263, thus securing the adjacent connection points of the two protective covers 21. After side fixing, the installation of the protection mechanism 2 is completed. Then, the support mechanism 5 is installed. The two support rings 51 are respectively fitted onto the middle of the outer wall of the two outer tubes 1, so that the support rings 51 are in contact with the limiting rings 52. The limiting rings 52 play a preliminary limiting role for the support rings 51. Through the cooperation of the support rings 51 and the slots 53, the position of the support rings 51 on the outer wall of the outer tube 1 is further fixed. Using the expansion bolts 55 at the four corners of the top of the mounting bracket 54, the mounting bracket 54 is fixed on the preset support surface. The expansion bolts 55 are tightly connected to the support surface through their own expansion, thereby stably supporting the support rings 51 and the outer tubes 1 at this position.

[0050] If disassembly is required, first operate the connecting mechanism 4, rotate the fixing bolt 44 in the opposite direction to disengage it from the rear connecting block 43, remove the fastening ring 3, separate the two outer tubes 1, and let the sealing ring 451 come out of the sealing groove 452. Then pull the inner hose 6 to make the locking ring 7 disengage from the locking groove 8, remove the inner hose 6, then disassemble the protection mechanism 2, pull the pull ring 282 to move the round plate 281 and the pin 23, so that the pin 23 exits the insertion hole 25, separate the locking hose 262 from the locking plate 263, separate the two protective covers 21, and finally, when adjusting the support mechanism 5, loosen the expansion bolt 55, release the fixing of the mounting bracket 54 to the support surface, move the support ring 51 to the appropriate position, and then fix it again.

[0051] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A metal-clad flexible pipe of the inner-outer reinforced interlocked type, comprising two outer pipes (1) and a fastening ring (3), characterized in that: The outer walls of the two outer tubes (1) are each provided with the same protective mechanism (2), which is used to protect the connection between the two outer tubes (1). The fastening ring (3) is provided with a connecting mechanism (4). The outer walls of the two outer tubes (1) are each provided with a support mechanism (5), which is used to support the outer tubes (1). The protective mechanism (2) includes two protective covers (21). Multiple mounting plates (22) are fixedly connected to the opposite sides of the two protective covers (21). Pins (23) are slidably connected to the opposite sides of the multiple mounting plates (22). Two fixing rings (24) are fixedly connected to the outer walls of the multiple pins (23). Multiple insertion holes (25) are opened between adjacent outer walls of the two outer tubes (1). Mounting components (26) are provided around the outer walls of the two protective covers (21). Positioning components (27) are provided around the inner perimeter of the two protective covers (21). Pulling components (28) are provided on the opposite sides of the multiple pins (23).

2. A metal-clad flexible hose of the inner-outer layer reinforced interlocking structure according to claim 1, characterized in that: The support mechanism (5) includes two support rings (51). The interior of the two support rings (51) is respectively installed in the middle of the outer wall of the two outer tubes (1). Limiting rings (52) are fixedly connected to the middle of the outer wall of the two outer tubes (1). The interior of the two limiting rings (52) is provided with a slot (53). The top of the outer wall of the two support rings (51) is fixedly connected with a mounting bracket (54). Expansion bolts (55) are installed at the four corners of the top of the two mounting brackets (54).

3. The reinforced interlocking structure metal-clad flexible pipe of claim 1, wherein: The installation assembly (26) includes multiple fixing blocks (261), which are fixedly connected to each other on the outer wall of the right protective cover (21). Each of the multiple fixing blocks (261) is fixedly connected to a snap-fit ​​hose (262) on the left side, and multiple snap-fit ​​plates (263) are fixedly connected to the outer wall of the left protective cover (21).

4. The reinforced interlocking structure metal-clad flexible pipe of claim 1, wherein: The positioning component (27) includes multiple positioning posts (271), with the opposite sides of the multiple positioning posts (271) fixedly connected to the inner periphery of the right protective cover (21), and positioning blocks (272) fixedly connected to the inner periphery of the left protective cover (21).

5. The reinforced interlocking structure metal-clad flexible pipe of claim 1, wherein: The pulling assembly (28) includes a plurality of circular plates (281), which are respectively fixedly connected to each other on the opposite side of a plurality of pins (23), and each of the opposite sides of the plurality of circular plates (281) is fixedly connected to a pull ring (282).

6. The reinforced interlocking structure metal-clad flexible pipe of claim 1, wherein: The connecting mechanism (4) includes two retaining rings (42), which are fixedly connected to the interior of the two outer tubes (1) respectively. The fastening ring (3) has a locking groove (41) inside. The top of the fastening ring (3) is fixedly connected to two connecting blocks (43). The front side of the front connecting block (43) is penetrated by a fixing bolt (44). The rear side of the outer wall of the fixing bolt (44) is threaded to the interior of the rear connecting block (43). A sealing assembly (45) is provided between the two adjacent outer tubes (1).

7. A reinforced interlocking structure metal cladded flexible pipe as claimed in claim 6, wherein: The sealing assembly (45) includes a sealing ring (451), the outer wall of which is fixedly connected to the right side of the left outer tube (1), and a sealing groove (452) is provided on the left side of the right outer tube (1).

8. A reinforced interlocking structure metal cladded flexible pipe as claimed in claim 7, wherein: The two outer tubes (1) are each provided with an inner flexible tube (6), and the outer walls of the two inner flexible tubes (6) are fixedly connected with two locking rings (7). The two outer tubes (1) are each provided with two locking grooves (8).

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