Metal corrugated hose with high pressure resistance

Abstract

The high-pressure-resistance metal corrugated hose comprises a corrugated pipe body, an end cap, a first buffering sleeve and a second buffering sleeve, the first buffering sleeve is clamped in a corrugated concave part on one side of the corrugated pipe body and connected to the end cap, the second buffering sleeve is clamped on a corrugated concave part on the other side of the corrugated pipe body, and the first buffering sleeve is connected to the second buffering sleeve. According to the corrugated pipe, the first rubber sleeve body and the second rubber sleeve body are embedded in the corrugated concave part, so that the force borne by the corrugated pipe body is relieved, the compression amount of the corrugated pipe body is reduced, and the corrugated pipe body is not prone to being damaged due to excessive compression.

Description

Technical Field

[0001] This application relates to the field of metal corrugated hose technology, and in particular to a high-pressure-resistant metal corrugated hose. Background Technology

[0002] Metal corrugated hoses are flexible pipes, typically composed of a metal corrugated body and fittings. Their corrugated structure provides excellent flexibility and extensibility, making them widely used in various industrial fields. In practical applications, the connection between the metal corrugated body and the fittings is often susceptible to compression. Because the connection is rigid, the metal corrugated hose is prone to damage due to excessive compression when subjected to strong pressure applied to the fitting. Therefore, there is an urgent need for a metal corrugated hose with higher pressure resistance to solve this problem. Utility Model Content

[0003] This application provides a high-pressure resistant metal corrugated hose.

[0004] This application provides a high-pressure-resistant corrugated metal hose using the following technical solution:

[0005] A high-pressure-resistant metal corrugated hose includes a corrugated body, an end cap, a first buffer sleeve, and a second buffer sleeve. The corrugated body and the end cap are integrally cast. The first buffer sleeve is snapped into a corrugated recess on one side of the corrugated body and connected to the end cap. The second buffer sleeve is snapped into a corrugated recess on the other side of the corrugated body and connected to the end cap. The first buffer sleeve is connected to the second buffer sleeve.

[0006] Preferably, the end cap includes a cap body and a connecting ring. The cap body is connected to the end of the corrugated pipe body, and the connecting ring is disposed on the outer periphery of the cap body. The connecting ring is provided with a plurality of first connecting holes and a plurality of second connecting holes. The first buffer sleeve includes a first mounting sleeve and a first rubber sleeve. The first mounting sleeve has a plurality of first mounting holes corresponding to the plurality of first connecting holes. A plurality of first screws are respectively inserted into the plurality of first mounting holes and the plurality of first connecting holes. The first rubber sleeve is disposed on the inner side of the first mounting sleeve and is engaged in the corrugated recess on one side of the corrugated pipe body. The second buffer sleeve includes a second mounting sleeve and a second rubber sleeve. The second mounting sleeve has a plurality of second mounting holes corresponding to the plurality of second connecting holes. A plurality of second screws are respectively inserted into the plurality of second mounting holes and the plurality of second connecting holes. The second rubber sleeve is disposed on the inner side of the second mounting sleeve and is engaged in the corrugated recess on the other side of the corrugated pipe body.

[0007] Preferably, the connecting ring is provided with at least one positioning protrusion, the positioning protrusion being located between adjacent first connecting holes and second connecting holes; the edge of the first mounting sleeve is provided with a first positioning groove corresponding to the positioning protrusion, and the edge of the second mounting sleeve is provided with a second positioning groove corresponding to the positioning protrusion, the positioning protrusion being embedded in the first positioning groove and the second positioning groove.

[0008] Preferably, the outer periphery of the cap body is provided with an annular snap-fit ​​groove, which is located between the connecting ring and the corrugated pipe body; the first mounting sleeve is provided with a first snap ring corresponding to the annular snap-fit ​​groove, and the second mounting sleeve is provided with a second snap ring corresponding to the annular snap-fit ​​groove. The first snap ring is snapped into one side of the annular snap-fit ​​groove, and the second snap ring is snapped into the other side of the annular snap-fit ​​groove.

[0009] Preferably, the edge of the first mounting sleeve has a plurality of first through holes, and the edge of the second mounting sleeve has a plurality of second through holes corresponding to the plurality of first through holes. The first through holes and the second through holes correspond one-to-one and are connected to a third screw.

[0010] Preferably, the first mounting sleeve is provided with a first anti-slip texture along the length direction of the first mounting sleeve; the second mounting sleeve is provided with a second anti-slip texture along the length direction of the second mounting sleeve.

[0011] In summary, this application includes at least one of the following beneficial technical effects:

[0012] 1. This application, by setting a first rubber sleeve and a second rubber sleeve embedded in the corrugated recess, absorbs part of the external force, reduces the force on the corrugated pipe body, and reduces the compression of the corrugated pipe body, making the corrugated pipe body less prone to damage due to excessive compression. The first buffer sleeve and the second buffer sleeve are set as detachable structures, which facilitates replacement if at least one of the first buffer sleeve and the second buffer sleeve is damaged. The high pressure resistance metal corrugated hose of this application has better pressure resistance than the prior art, can protect the corrugated pipe from damage, and has a simple structure and is easy to install.

[0013] 2. The positioning protrusion and the first and second positioning grooves that cooperate with it facilitate the coaxial alignment of the first connecting hole and the first mounting hole, as well as the coaxial alignment of the second connecting hole and the second mounting hole, thus facilitating installation.

[0014] 3. By setting an annular snap-fit ​​groove and a first snap ring and a second snap ring snapped into the annular snap-fit ​​groove, the connection structure between the first mounting sleeve, the second mounting sleeve and the cap body is further reinforced. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the connection structure between the end cap and the bellows body in a preferred embodiment of this application.

[0016] Figure 2 yes Figure 1 Cross-sectional view along AA.

[0017] Figure 3 This is a schematic diagram of the overall structure of a preferred embodiment of this application.

[0018] Figure 4 This is a schematic diagram of the overall structure from another angle of a preferred embodiment of this application.

[0019] Figure 5 yes Figure 4 Cross-sectional view along BB.

[0020] Figure 6 yes Figure 5 Enlarged view of part A in the middle.

[0021] Figure 7 This is a schematic diagram of the structure of the first buffer sleeve in a preferred embodiment of this application.

[0022] Figure 8 This is a schematic diagram of the structure of the second buffer sleeve in a preferred embodiment of this application.

[0023] Explanation of reference numerals in the attached drawings: 1. Corrugated pipe body; 11. Corrugated recess; 2. End cap; 21. Cap body; 211. Annular snap-fit ​​groove; 22. Connecting ring; 221. First connecting hole; 222. Second connecting hole; 223. Positioning protrusion; 3. First buffer sleeve; 31. First mounting sleeve body; 311. First mounting hole; 312. First positioning groove; 313. First retaining ring; 314. First through hole; 315. First anti-slip texture; 32. First rubber sleeve body; 4. Second buffer sleeve; 41. Second mounting sleeve body; 411. Second mounting hole; 412. Second positioning groove; 413. Second retaining ring; 414. Second through hole; 415. Second anti-slip texture; 42. Second rubber sleeve body; 5. First screw; 6. Second screw; 7. Third screw. Detailed Implementation

[0024] The present application will be further described in detail below with reference to the accompanying drawings.

[0025] This application provides a high-pressure-resistant metal corrugated hose, such as Figures 1 to 8 As shown, it includes a bellows body 1, an end cap 2, a first buffer sleeve 3, and a second buffer sleeve 4.

[0026] like Figures 1 to 4As shown, both the bellows body 1 and the end cap 2 are made of metal and are integrally cast. The end cap 2 includes a cap body 21 and a connecting ring 22. The cap body 21 is a hollow cylindrical structure with threads on its inner circumference. The cap body 21 is coaxially connected to the end of the bellows body 1. The connecting ring 22 is located on the outer circumference of the cap body 21. The connecting ring 22 has multiple first connecting holes 221 and multiple second connecting holes 222. The connecting ring 22 has at least one positioning protrusion 223, which is located between adjacent first connecting holes 221 and second connecting holes 222. The outer circumference of the cap body 21 also has an annular locking groove 211, which is located between the connecting ring 22 and the bellows body 1.

[0027] like Figures 5 to 8 As shown, the first buffer sleeve 3 is snapped into the corrugated recess 11 on one side of the corrugated pipe body 1 and connected to the end cap 2. Specifically, the first buffer sleeve 3 includes a first mounting sleeve 31 and a first rubber sleeve 32. The first mounting sleeve 31 is a hollow semi-cylindrical structure, and its end has multiple first mounting holes 311 corresponding to multiple first connecting holes 221. The multiple first mounting holes 311 and the multiple first connecting holes 221 are coaxially arranged in a one-to-one correspondence, and multiple first screws 5 are inserted accordingly. By inserting multiple first screws 5, the first buffer sleeve 3 is fixed to the end cap 2. The edge of the first mounting sleeve 31 is provided with a first positioning groove corresponding to the positioning protrusion 223. The first groove cooperates with the positioning protrusion 223 for positioning the first buffer sleeve 3, so that the multiple first mounting holes 311 correspond one-to-one with the multiple first connecting holes 221, which facilitates the installation of the first screws 5. The first mounting sleeve 31 has a corresponding annular snap-fit ​​groove 211. A first retaining ring 313 is provided, which is engaged with one side of the annular retaining groove 211 to further stabilize the connection structure between the first mounting sleeve 31 and the connecting ring 22. The edge of the first mounting sleeve 31 has multiple first through holes 314 for connecting the second buffer sleeve 4. The first mounting sleeve 31 has a first anti-slip texture 315 along its length direction. The first anti-slip texture 315 provides friction for the user to install and remove the first buffer sleeve 3, making installation and removal easier. A first rubber sleeve 32 is provided inside the first mounting sleeve 31. The structure of the first rubber sleeve matches the corrugated recess 11 of the corrugated pipe body 1 and is a semi-cylindrical structure. The first rubber sleeve is engaged in the corrugated recess 11 on one side of the corrugated pipe body 1 to reduce the impact of external force when the corrugated pipe body 1 is subjected to external force, so that the corrugated pipe body 1 is not easily over-compressed and is protected from damage.

[0028] The second buffer sleeve 4 is snapped into the corrugated recess 11 on the other side of the corrugated pipe body 1 and connected to the end cap 2. Specifically, the second buffer sleeve 4 includes a second mounting sleeve 41 and a second rubber sleeve 42. The second mounting sleeve 41 is a hollow semi-cylindrical structure, and its end has multiple second mounting holes 411 corresponding to multiple second connecting holes 222. The multiple second mounting holes 411 and multiple second connecting holes 222 are coaxially arranged in a one-to-one correspondence, and multiple second screws 6 are inserted through them. By inserting multiple second screws 6, the second buffer sleeve 4 is fixed to the end cap 2. The edge of the second mounting sleeve 41 is provided with a second positioning groove corresponding to the positioning protrusion 223. The second groove cooperates with the positioning protrusion 223 to position the second buffer sleeve 4, so that the multiple second mounting holes 411 correspond one-to-one with the multiple second connecting holes 222, which facilitates the installation of the second screws 6. The second mounting sleeve 41 has a corresponding annular snap-fit ​​groove 2. A second retaining ring 413 is provided on the second mounting sleeve 411. The second retaining ring 413 is engaged with the other side of the annular retaining groove 211 to further stabilize the connection structure between the second mounting sleeve 41 and the connecting ring 22. The edge of the second mounting sleeve 41 has multiple second through holes 414 for connecting the second buffer sleeve 4. The second mounting sleeve 41 has a second anti-slip texture 415 along its length. The second anti-slip texture 415 provides friction for the user to install and remove the second buffer sleeve 4, making it easier to install and remove. The second rubber sleeve 42 is located inside the second mounting sleeve 41. The structure of the second rubber sleeve matches the corrugated recess 11 of the corrugated pipe body 1 and is a semi-cylindrical structure. The second rubber sleeve is engaged in the corrugated recess 11 on both sides of the corrugated pipe body 1 to reduce the impact of external force when the corrugated pipe body 1 is subjected to external force, so that the corrugated pipe body 1 is not easily over-compressed and is protected from damage.

[0029] In practical use, the high-pressure resistant metal corrugated hose of this application divides the connecting ring 22 into two parts, namely the first mounting sleeve 31 and the second mounting sleeve 41, by the positioning protrusion 223. The first rubber sleeve 32 is embedded in the corrugated recess 11 on one side of the corrugated hose body 1. The first mounting sleeve 31 is rotated to make the first positioning groove and the positioning protrusion 223 cooperate, so that the first connecting hole 221 and the first mounting hole 311 are coaxially aligned, which facilitates the first screw 5 to be sequentially passed through the first connecting hole 221. In the first mounting hole 311 and the first mounting hole 311, the first buffer sleeve 3 is fixed to the bellows body 1. At the same time, the first retaining ring 313 is engaged in the annular groove, further reinforcing the connection structure between the first mounting sleeve 31 and the connecting ring 22. The second rubber sleeve 42 is embedded in the bellows recess 11 on the other side of the bellows body 1. The second mounting sleeve 41 is rotated to make the second positioning groove and the positioning protrusion 223 cooperate, so that the second connecting hole 222 and the second mounting hole 411 are coaxially aligned, which facilitates the second screw 6 to be passed through in sequence. In the second connecting hole 222 and the second mounting hole 411, the second buffer sleeve 4 is fixed to the corrugated pipe body 1. At the same time, the second retaining ring 413 is engaged in the annular groove, further reinforcing the connection structure between the second mounting sleeve 41 and the connecting ring 22. The first mounting sleeve 31 and the second mounting sleeve 41 are fixedly connected to each other through the first through hole 314 and the second through hole 414 by a third screw 7. When the corrugated pipe body 1 is subjected to an external force toward the end cap 2, since the first rubber sleeve 32 and the second rubber sleeve 42 are embedded in the corrugated recess 11, they absorb part of the external force, reduce the force on the corrugated pipe body 1, and reduce the compression of the corrugated pipe body 1, making the corrugated pipe body 1 less likely to be damaged due to excessive compression. The first buffer sleeve 3 and the second buffer sleeve 4 are designed to be detachable, which facilitates replacement after at least one of the first buffer sleeve 3 and the second buffer sleeve 4 is damaged. The high pressure-resistant metal corrugated hose of this application has better pressure resistance than the prior art, can protect the corrugated pipe from damage, and has a simple structure and is easy to install.

[0030] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-pressure-resistant corrugated metal hose, characterized in that: The device includes a corrugated pipe body (1), an end cap (2), a first buffer sleeve (3), and a second buffer sleeve (4). The corrugated pipe body (1) and the end cap (2) are integrally cast. The first buffer sleeve (3) is snapped into the corrugated recess (11) on one side of the corrugated pipe body (1) and connected to the end cap (2). The second buffer sleeve (4) is snapped into the corrugated recess (11) on the other side of the corrugated pipe body (1) and connected to the end cap (2). The first buffer sleeve (3) is connected to the second buffer sleeve (4).

2. The high-pressure-resistant metal corrugated hose according to claim 1, characterized in that: The end cap (2) includes a cap body (21) and a connecting ring (22). The cap body (21) is connected to the end of the corrugated pipe body (1). The connecting ring (22) is disposed on the outer periphery of the cap body (21). The connecting ring (22) is provided with a plurality of first connecting holes (221) and a plurality of second connecting holes (222). The first buffer sleeve (3) includes a first mounting sleeve (31) and a first rubber sleeve (32). The first mounting sleeve (31) has multiple first mounting holes (311) corresponding to multiple first connecting holes (221). Multiple first screws (5) are inserted into the multiple first mounting holes (311) and the multiple first connecting holes (221). The first rubber sleeve (32) is disposed inside the first mounting sleeve (31) and is snapped into the corrugated recess (11) on one side of the corrugated pipe body (1). The second buffer sleeve (4) includes a second mounting sleeve (41) and a second rubber sleeve (42). The second mounting sleeve (41) has multiple second mounting holes (411) corresponding to multiple second connecting holes (222). Multiple second screws (6) are inserted into the multiple second mounting holes (411) and the multiple second connecting holes (222). The second rubber sleeve (42) is disposed inside the second mounting sleeve (41) and is snapped into the corrugated recess (11) on the other side of the corrugated pipe body (1).

3. The high-pressure-resistant metal corrugated hose according to claim 2, characterized in that: The connecting ring (22) is provided with at least one positioning protrusion (223), which is located between adjacent first connecting holes (221) and second connecting holes (222); The first mounting sleeve (31) has a first positioning groove (312) on its edge corresponding to the positioning protrusion (223), and the second mounting sleeve (41) has a second positioning groove (412) on its edge corresponding to the positioning protrusion (223). The positioning protrusion (223) is embedded in the first positioning groove (312) and the second positioning groove (412).

4. The high pressure-resistant metal corrugated hose according to claim 2, characterized in that: The outer periphery of the cap body (21) is provided with an annular snap-fit ​​groove (211), which is located between the connecting ring (22) and the corrugated pipe body (1); The first mounting sleeve (31) is provided with a first retaining ring (313) corresponding to the annular retaining groove (211), and the second mounting sleeve (41) is provided with a second retaining ring (413) corresponding to the annular retaining groove (211). The first retaining ring (313) is engaged with one side of the annular retaining groove (211), and the second retaining ring (413) is engaged with the other side of the annular retaining groove (211).

5. The high-pressure-resistant metal corrugated hose according to claim 2, characterized in that: The edge of the first mounting sleeve (31) has a plurality of first through holes (314), and the edge of the second mounting sleeve (41) has a plurality of second through holes (414) corresponding to the plurality of first through holes (314). The first through holes (314) and the second through holes (414) correspond one to one and are connected to a third screw (7).

6. The high pressure-resistant metal corrugated hose according to claim 2, characterized in that: The first mounting sleeve (31) is provided with a first anti-slip texture (315) along the length direction of the first mounting sleeve (31); The second mounting sleeve (41) is provided with a second anti-slip texture (415) along the length direction of the second mounting sleeve (41).

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