Corrugated hose with a connector and method

Abstract

The application provides a corrugated hose with a connecting piece and a method, relates to the field of hoses, and aims to solve the problem of poor sealing reliability of the end joint of the corrugated hose. The connecting piece is connected to the corrugated pipe through a snap ring, sealing structures are arranged on the two sides of the snap ring, the deformed sealing piece can be deformed after the snap ring is installed, and multiple sealing is formed, so that the sealing performance of the connecting piece and the corrugated pipe at the joint position is improved, and the safety of the corrugated hose is improved.

Description

Technical Field

[0001] This invention relates to the field of hoses, and more specifically to a corrugated hose with connectors and a method thereof. Background Technology

[0002] A corrugated hose is a flexible tubular structure used as a gas hose, fire hose, etc., with connectors at both ends for easy connection to external structures. Connectors are needed to connect the connectors and the corrugated hose. Currently, the most common method is to weld the connectors to the main body of the corrugated hose. However, because the corrugated pipe walls of the main body of the hose are relatively thin, the welding precision requirements are high, making the operation difficult.

[0003] To address this issue, existing technologies have proposed a novel method: using a combination snap-fit ​​clamping technique to install the connector at the end of the bellows, reducing the construction difficulty and leakage risk associated with welding. This method simplifies the connection process and reduces operational complexity. However, due to poor sealing at the connection point, leakage is still possible. Although a sealing ring or a sealing structure can be installed at the junction of the connector and the bellows to ensure good sealing performance, the sealing performance of these structures is limited. Deformation and movement of the bellows during use can affect the sealing structure, leading to loosening or failure, making it difficult to meet the sealing safety requirements during long-term use. Summary of the Invention

[0004] The purpose of this invention is to address the deficiencies of existing technologies by providing a corrugated hose with connectors and a method thereof. The connectors are connected to the corrugated hose via retaining rings, and sealing structures are provided on both sides of the retaining rings. The deformable sealing element used can deform after the retaining rings are installed, forming multiple seals, thereby improving the sealing performance at the connection point between the connectors and the corrugated hose and enhancing the safety of the corrugated hose.

[0005] The first objective of this invention is to provide a corrugated hose with a connector, which is achieved through the following solution:

[0006] include:

[0007] The bellows has a coaxial connector at at least one end.

[0008] The mating structure includes a retaining ring, a snap ring, a sealing ring, and a deformable seal. One end of the retaining ring snaps into the bellows, and the other end snaps into the connector. The sealing ring is fitted onto the seal on one side of the retaining ring, and the deformable seal is fitted onto the bellows on the other side of the retaining ring. The snap ring is fitted onto the sealing ring, the snap ring, and the deformable seal, and squeezes the deformable seal to form multiple annular seals between the deformable seal and the bellows.

[0009] Furthermore, the retaining ring is an annular component with a U-shaped cross-section along the axis. The inner ring of the retaining ring forms an annular groove, and annular protrusions are formed on both sides of the annular groove. The annular protrusion on one side of the annular groove engages with the corrugated pipe, and the annular protrusion on the other side of the annular groove engages with the connecting component.

[0010] Furthermore, the outer circumference of the connector is provided with a groove that matches the annular protrusion, and the annular protrusion on the other side of the annular groove matches the trough of the bellows end. The area covered by the annular groove includes at least one peak of the bellows.

[0011] Furthermore, the deformable seal includes a first part in the inner ring and a second part in the outer ring. The second part serves as a flange extending axially from the first part. The first part contacts the trough of the bellows and forms a seal. The axial length of the deformable seal is greater than the spacing between adjacent peaks of the bellows, enabling the second part to simultaneously adhere to dissimilar peaks and form a seal.

[0012] Furthermore, the deformable seal is made of elastic material and is ring-shaped. The cross-section of the deformable seal along the axis is T-shaped. The inner circumferential surface of the deformable seal contacts the bellows upward along the ring, and the outer circumferential surface fits the buckle upward along the ring.

[0013] Furthermore, the deformable sealing element is sleeved on the outside of the bellows and arranged separately from the trough of the retaining ring. The first part fits into the trough of the bellows and deforms to form a first seal. The second part fits into a peak adjacent to the trough of the first part and deforms to form a second seal. The second part fits into another peak adjacent to the trough of the first part and deforms to form a third seal.

[0014] Furthermore, the outer circumferential surface of the connector is provided with an annular sealing groove for embedding the sealing ring. The sealing groove and the slot are arranged at intervals, and the sealing groove is located between the position of the connector mating joint and the position of the slot.

[0015] Furthermore, the retaining ring has a cylindrical structure, and pressure is applied to the retaining ring to make one end of the retaining ring embed into the trough of the bellows.

[0016] A second objective of this invention is to provide a method for manufacturing a corrugated hose with connectors as described in the first objective, comprising:

[0017] The connector is fitted onto the connector, with one end of the retaining ring engaging the connector and the other end engaging the bellows, thus forming a connection between the connector and the bellows.

[0018] A sealing ring is fitted on the connector on one side of the retaining ring, and a deformable sealing element is fitted on the bellows on the other side of the retaining ring.

[0019] The retaining ring is pressed onto the bellows, and the retaining ring compresses the sealing ring and deformable seal, so that the sealing ring and deformable seal form a corresponding compression amount, thereby sealing the mating position of the bellows and the connector.

[0020] Furthermore, the retaining rings are distributed around the mating position of the bellows and the connector, and the retaining rings constrain the relative position of the bellows and the connector axially upwards and circumferentially upwards.

[0021] Compared with the prior art, the advantages and positive effects of this invention are:

[0022] (1) To address the problem of poor sealing reliability at the end joint of the current corrugated hose, the connector is connected to the corrugated pipe by a snap ring, and a sealing structure is set on both sides of the snap ring. The deformable sealing element can deform after the snap ring is installed to form multiple seals, thereby improving the sealing performance at the connection between the connector and the corrugated pipe and improving the safety of the corrugated hose.

[0023] (2) The depth of the groove is matched with the depth of the annular protrusion, and the depth of the connecting trough is also matched with the depth of the annular protrusion; after the retaining ring, sealing ring and deformable sealing element are installed, the retaining ring can be pressed tight under the action of the installed retaining ring, and the retaining ring is tightly connected with the connecting element and the bellows.

[0024] (3) In this invention, deformable seals are arranged on the bellows. The deformable seals are not simply a ring structure with a T-shaped cross section, nor are they a traditional cylindrical structure covering multiple peaks. Instead, based on the structural characteristics of the bellows, the two parts of the deformable seals are simultaneously attached to the peaks and valleys of the bellows to form multiple seals. This effect is achieved not only by the deformable seals, but also by the centripetal extrusion force applied by the retaining ring in the ring direction, which further expands the contact position between the deformable seals and the bellows, thereby improving the sealing effect.

[0025] (4) The deformable seal is specially configured such that its length along the axial direction is greater than the length of the adjacent crests of the bellows, so that the deformable seal can simultaneously contact the two crests to achieve separate sealing. The positions where the crests and troughs contact the deformable seal are both arc-shaped surfaces. Therefore, when subjected to compressive force, the deformable seal can expand, increasing the contact range and improving the sealing effect.

[0026] (5) The first part of the deformable seal can be configured with a smooth diameter structure on the side facing the axis to adapt to the arc surface of the trough, improve its deformation effect when squeezed, and thus increase the sealing area. Attached Figure Description

[0027] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0028] Figure 1 This is a cross-sectional schematic diagram of the corrugated hose with connectors in Embodiments 1 and 2 of the present invention.

[0029] Figure 2 This is a diagram showing the docking structure of the corrugated pipe and the connector in Embodiments 1 and 2 of the present invention.

[0030] Figure 3 This is a schematic diagram showing the fit between the deformable seal, the bellows, and the retaining ring in Embodiments 1 and 2 of the present invention.

[0031] Figure 4 This is a schematic diagram of the deformable seal after being compressed and deformed in Embodiments 1 and 2 of the present invention.

[0032] Figure 5 This is a comparative schematic diagram of the deformable seal before and after deformation in Embodiments 1 and 2 of the present invention.

[0033] Figure 6 for Figure 5 A magnified view of a portion of point A in the middle.

[0034] Figure 7 for Figure 5 A magnified view of a portion of point B in the middle.

[0035] Among them, 1. joint, 2. connector, 3. sealing groove, 4. slot, 5. retaining ring, 6. plastic layer, 7. bellows, 8. snap ring, 9. deformable seal, 10. sealing ring. Detailed Implementation

[0036] Example 1

[0037] In a typical embodiment of the present invention, such as Figures 1-7 As shown, a corrugated hose with connectors is presented.

[0038] The corrugated hose has a connector 1 installed at its end for installation. The connector 1 is connected to the corrugated hose via a connector 2. The connector 2 is usually connected to the main body of the corrugated hose by welding. However, the main body of the corrugated hose, the corrugated pipe 7, has a thin wall, requiring high welding precision and making the operation difficult. In the existing technology, the connector 2 is installed at the end of the corrugated pipe 7 by a combination snap-fit ​​compression method, but leakage is prone to occur at the snap-fit ​​position due to poor sealing.

[0039] Based on this, this embodiment provides a corrugated hose with connectors for use as a gas hose, fire hose, etc. The connector 2 and the corrugated pipe 7 are connected by a retaining ring 5, and sealing structures are set on both sides of the retaining ring 5. The deformable sealing element 9 can deform after the buckle 8 is installed to form multiple seals, thereby improving the sealing performance of the connection between the connector 2 and the corrugated pipe 7 and improving the safety of the corrugated hose.

[0040] The corrugated hose with connectors described above will now be described in detail with reference to the accompanying drawings.

[0041] See Figure 1 The corrugated hose with connectors mainly includes a corrugated pipe 7, a connector 2, and a mating structure. The end of the corrugated pipe 7 and the connector 2 are connected and installed through the mating structure. The structure of the connector 2 is configured according to the form of the connector 1 so that the connector 1 and the connector 2 are compatible. At the same time, the end of the connector 2 that is connected to the corrugated pipe 7 can adopt the same structural design. When the connector 2 is replaced due to the different form of the connector 1, the same mating structure can be used to install the connector 2 on the end of the corrugated pipe 7.

[0042] Optionally, the corrugated pipe 7 can be fitted with the connector 2 at one end via a butt joint structure, or the connector 2 can be fitted at both ends respectively.

[0043] The mating structure includes a retaining ring 5, a snap ring 8, a sealing ring 10, and a deformable seal 9, such as... Figure 2 As shown, the connector 2 is often coaxially distributed when it is connected to the bellows 7. After one end of the connector 2 is arranged opposite to one end of the bellows 7, the two are connected by the retaining ring 5. The sealing ring 10 is sleeved on the connector 2, the deformable seal 9 is sleeved on the bellows 7, and the retaining ring 8 is distributed around the mating position of the connector 2 and the bellows 7, which together wrap and press the retaining ring 5, the sealing ring 10 and the deformable seal 9.

[0044] The retaining ring 5 is an annular piece with a concave cross-section along the axis. The inner circle of the retaining ring 5 forms an annular groove, and annular protrusions are provided on both sides of the annular groove. A retaining groove 4 that matches the annular protrusion is provided on the outer circumference of the connector 2. The annular protrusion on one side of the annular groove matches the retaining groove 4 on the connector 2, and the annular protrusion on the other side matches a trough at the end of the bellows 7. Here, the trough that matches the annular protrusion is called the connecting trough. There is at least one peak between the connecting trough and the connector 2, so that the connection between the retaining ring 5 and the bellows 7 is stable.

[0045] The distance between the side wall of the slot 4 away from the bellows 7 along the axial direction and the side wall of the connecting valley away from the connector 2 along the axial direction is the first length. The length of the retaining ring 5 along the axial direction is less than or equal to the first length, so that after the retaining ring 5 mates with the slot 4 and the connecting valley, the end face of the bellows 7 fits against the end face of the connector 2.

[0046] The annular groove of the retaining ring 5 accommodates the crest of the bellows 7 and the protrusion on one side of the retaining groove 4 on the connector 2. In addition, the depth of the retaining groove 4 matches the depth of the annular protrusion, and the depth of the connecting trough also matches the depth of the annular protrusion. After the retaining ring 5, the sealing ring 10 and the deformable seal 9 are all installed, the retaining ring 5 can be pressed tightly under the action of the installed retaining ring 8, and the retaining ring 5 is tightly connected to the connector 2 and the bellows 7.

[0047] Combination Figure 1 Figure 2 As shown, the retaining ring 5 has a sealing ring 10 and a deformable sealing element 9 on both sides along the axial direction. The sealing ring 10 is sleeved on the outside of the connector 2. The outer circumferential surface of the connector 2 has an annular sealing groove 3 for the sealing ring 10 to be embedded. The sealing groove 3 and the retaining groove 4 are arranged at intervals, and the sealing groove 3 is located between the position of the connector 2 mating joint 1 and the position of the retaining groove 4.

[0048] The inner ring of the sealing ring 10 is embedded in the sealing groove 3, and the inner ring of the sealing ring 10 fits the sealing groove 3. The outer ring is located outside the outer circumference of the connector 2, and can fit tightly against the inner wall of the retaining ring 8 after the retaining ring 8 is installed. The sealing ring 10 can fill the annular gap between the connector 2 and the retaining ring 8 at its location. After sealing this annular gap, it can prevent the connector 2 from communicating with the outside through this annular gap at the location where it is connected to the corrugated pipe 7.

[0049] The sealing ring 10 has a T-shaped cross section along the axis. The inner ring of the sealing ring 10 is embedded in and fills the sealing groove 3. The axial length of the outer ring of the sealing ring 10 is greater than the axial length of the outer ring of the sealing ring 10. The outer ring of the sealing ring 10 simultaneously fits the outer circumferential surface of the connector 2 and the retaining ring 8.

[0050] It should be noted that when the retaining ring 8 is installed, the retaining ring 8 will apply a compressive force to the sealing ring 10, thereby deforming the sealing ring 10 and improving the fit between the sealing ring 10 and the retaining ring 8 and the connecting piece 2, thus improving the sealing performance.

[0051] In other alternative embodiments, the sealing ring 10 can also be an O-ring, a rectangular cross-section sealing ring, etc., to fill the annular gap between the connector 2 and the retaining ring 8 and meet the sealing requirements.

[0052] Combination Figure 3 , Figure 4 The deformable seal 9 is described below. It serves to fill the annular gap between the retaining ring 8 and the bellows 7. After filling this annular gap, it prevents the connection between the connector 2 and the bellows 7 and the outside through this annular gap.

[0053] Specifically, the deformable seal 9 is made of elastic material, is annular in shape, and has a T-shaped cross-section along the axis. The deformable seal 9 includes a first part in the inner ring and a second part in the outer ring. The first part can fit into the bellows 7, and the second part is integrally set with the first part. The second part serves as the flange of the first part extending axially. The length of the deformable seal 9 along the axial direction is greater than the spacing between adjacent corrugations of the bellows 7, so that the second part can simultaneously fit into different corrugations to form a seal.

[0054] The deformable seal 9 is sleeved on the outside of the bellows 7 and is arranged apart from the connecting troughs that mate with the retaining ring 5. The first part of the deformable seal 9 is sleeved on the trough, and this trough position of the bellows 7 is called the sealing trough. There are peaks on both sides of the sealing trough along the axial direction, and this peak position of the bellows 7 is called the sealing peak. The second part is sleeved on the two sealing peaks, and the second part simultaneously contacts and fits with the sealing peaks on both sides of the sealing trough.

[0055] It should be noted that after the deformable seal 9 is fitted outside the bellows 7 and the retaining ring 8 is fitted outside the deformable seal 9, the retaining ring 8 applies a squeezing action to the deformable seal 9, so that the outer circumference of the deformable seal 9 fits against the inner wall of the retaining ring 8, and the inner circumferential surface of the deformable seal 9 fits against the outer circumferential surface of the bellows 7. The first part and the second part simultaneously contact the bellows 7. The first part fits against the sealing trough to form a seal, the second part fits against a sealing peak to form another seal, and the second part fits against another sealing peak to form yet another seal. Thus, the deformable seal 9 forms a triple sealing effect.

[0056] Combination Figure 5 , Figure 6 , Figure 7 The fit between the deformable seal 9, the bellows 7, and the retaining ring 8 is explained in detail. When the retaining ring 8 compresses the deformable seal 9, the first part is pressed against the sealing trough, and at the same time, the first part deforms, such as... Figure 6 As shown, the centripetal side of the first part expands outward under pressure, and the centripetal side structure of the first part is composed of... Figure 6 The dotted line in the image is transformed into a solid line, thereby increasing the contact area between the first part and the sealing trough, and improving its sealing effect.

[0057] Taking the second part conforming to a sealing crest as an example, when the retaining ring 8 compresses and deforms the seal 9, the second part conforms to the sealing crest under pressure, and at the same time, the second part deforms, such as... Figure 7 As shown, the centripetal side of the second part expands outward under pressure, and the centripetal structure of the second part is composed of... Figure 7 The dashed line in the middle is transformed into a solid line, thereby increasing the contact area between the second part and the sealing crest and improving its sealing effect.

[0058] The entire deformable seal 9 is subjected to the extrusion force of the retaining ring 8 in the circumferential direction, and the area of ​​the inner circumferential surface of the deformable seal 9 that is in contact with the outer circumferential surface of the bellows 7 increases due to the extrusion.

[0059] The deformable seal 9 used in this embodiment is not a simple T-shaped cross-section annular structure, nor is it a traditional cylindrical structure covering multiple crests. Instead, based on the structural characteristics of the bellows 7, the two parts of the deformable seal 9 simultaneously fit with the crests and troughs of the bellows 7 to form multiple seals. This effect depends not only on the deformable seal 9, but also on the centripetal extrusion force applied by the retaining ring 8 in the circumferential direction, which further expands the contact position between the deformable seal 9 and the bellows 7, thereby improving the sealing effect.

[0060] The retaining ring 8 is a rigid structure that is not easily bent. However, the bellows 7 segment between the two retaining rings 8 can deform and twist during installation and use. The shaking during the twisting process can extend to the bellows 7 segment inside the retaining ring 8, causing the traditional sealing structure to loosen. Therefore, in this embodiment, a deformable sealing element 9 is used, such as... Figure 5 As shown, after the corrugated trough is embedded in the middle, the two sides extend outward to contact the corrugated peak. When the retaining ring 8 is installed and squeezed, it deforms and thus fits the corrugated pipe 7 at different positions, forming a seal respectively, achieving a multi-layer sealing effect. This resists the influence of the segmental torsion of the corrugated pipe 7 between the two retaining rings 8 on the sealing effect of the segments inside the retaining ring 8, and meets the sealing requirements of the corrugated hose.

[0061] The working principle of the deformable seal 9 in this embodiment is different from that of the sealing ring 10. The deformable seal 9 is specially configured such that its axial length is greater than the length of the adjacent crests of the bellows 7, so that the deformable seal 9 can simultaneously contact the two crests to achieve separate sealing. The positions where the crests and troughs contact the deformable seal 9 are both arc-shaped surfaces. Therefore, when subjected to compressive force, the deformable seal 9 can expand, increasing the contact range and improving the sealing effect.

[0062] Alternatively, the first portion of the deformable seal 9 facing the axis can be configured as follows: Figure 6 The smooth variable diameter structure shown adapts to the curved surface of the trough, improving its deformation effect under compression and thus increasing the sealing area.

[0063] The exposed exterior of the bellows 7 is covered with a plastic layer 6. At the same time, the plastic layer 6 extends axially into the retaining ring 8. After the deformable seal 9 is deformed by the pressure of the retaining ring 8, one axial end of the deformable seal 9 is connected to the end of the plastic layer 6.

[0064] like Figure 1As shown, the retaining ring 8 is a cylindrical structure that is sleeved on the deformable seal 9, the retaining ring 5, and the sealing ring 10. It applies compressive force to the deformable seal 9, the retaining ring 5, and the sealing ring 10 in the radial and centripetal directions, respectively. Applying compressive force to the deformable seal 9 causes it to deform and increase the sealing area, thereby improving the sealing effect. Applying pressure to the retaining ring 5 allows the annular protrusion of the retaining ring 5 to be stably embedded in the connecting trough and the retaining groove 4, thereby improving the connection stability. Applying compressive force to the sealing ring 10 allows it to be tightly attached to the sealing groove 3 and the connecting piece 2, thereby improving the sealing effect.

[0065] Example 2

[0066] In another typical embodiment of the present invention, such as Figures 1-7 As shown, a method for manufacturing a corrugated hose with connectors is presented.

[0067] Includes the following steps:

[0068] The connector 1 is fitted onto the connector 2. One end of the retaining ring 5 is engaged with the connector 2, and the other end is engaged with the corrugated pipe 7, so that the connector 2 and the corrugated pipe 7 are connected.

[0069] A sealing ring 10 is fitted on the connector 2 on one side of the retaining ring 5, and a deformable sealing element 9 is fitted on the bellows 7 on the other side of the retaining ring 5.

[0070] The retaining ring 8 is pressed onto the bellows 7, and the retaining ring 8 is used to press the sealing ring 10 and the deformable seal 9 together, so that the sealing ring 10 and the deformable seal 9 form a corresponding compression amount, thereby sealing the mating position of the bellows 7 and the connector 2.

[0071] For the various components that make up the corrugated hose with connectors, the following are used as in Example 1: connector 1, connector 2, retaining ring 5, corrugated tube 7, sealing ring 10, snap ring 8 and deformable seal 9. The exposed part of the outer wall of the corrugated tube 7 can be covered with plastic layer 6.

[0072] The retaining rings 5 ​​are distributed around the mating position of the bellows 7 and the connector 2. The retaining rings 5 ​​constrain the relative position of the bellows 7 and the connector 2 along the axial direction, thereby maintaining the mating state of the bellows 7 and the connector 2.

[0073] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A corrugated flexible hose with connectors, characterized in that, include: The bellows has a coaxial connector at at least one end. The docking structure includes a retaining ring, a snap ring, a sealing ring, and a deformable seal. One end of the retaining ring is engaged with the bellows, and the other end is engaged with the connector. The sealing ring is fitted onto the connector on one side of the retaining ring, and the deformable seal is fitted onto the bellows on the other side of the retaining ring. The snap ring is fitted onto the sealing ring, the retaining ring, and the deformable seal, and squeezes the deformable seal to form multiple annular seals between the deformable seal and the bellows. The retaining ring is a ring-shaped piece with a U-shaped cross section along the axis. The inner ring of the retaining ring forms an annular groove, and annular protrusions are formed on both sides of the annular groove. The annular protrusion on one side of the annular groove engages with the bellows, and the annular protrusion on the other side of the annular groove engages with the connector. The deformable seal includes a first part in the inner ring and a second part in the outer ring. The second part serves as the flange of the first part extending axially. The first part contacts the trough of the bellows and forms a seal. The length of the deformable seal along the axial direction is greater than the spacing between adjacent peaks of the bellows, so that the second part can simultaneously adhere to different peaks and form a seal. The deformable sealing element is sleeved on the outside of the bellows and is arranged apart from the trough of the retaining ring. The first part fits into the trough of the bellows and deforms to form the first seal. The second part fits into a peak adjacent to the trough of the first part and deforms to form the second seal. The second part fits into another peak adjacent to the trough of the first part and deforms to form the third seal.

2. The corrugated hose with connector as described in claim 1, characterized in that, The connector has a groove on its outer circumference that matches the annular protrusion. The annular protrusion on the other side of the annular groove matches the trough at the end of the bellows. The area covered by the annular groove includes at least one peak of the bellows.

3. The corrugated hose with connector as described in claim 1, characterized in that, The deformable seal is made of elastic material and is ring-shaped. The cross-section of the deformable seal along the axis is T-shaped. The inner circumferential surface of the deformable seal contacts the bellows upward along the ring, and the outer circumferential surface fits the buckle upward along the ring.

4. The corrugated hose with connector as described in claim 1, characterized in that, The outer circumferential surface of the connector is provided with an annular sealing groove for embedding a sealing ring. The sealing groove and the slot are arranged at intervals, and the sealing groove is located between the position of the connector mating joint and the position of the slot.

5. The corrugated hose with connector as described in claim 1, characterized in that, The buckle is a cylindrical structure, and pressure is applied to the buckle to make one end of the buckle embed into the trough of the bellows.

6. A method for manufacturing a corrugated hose with connectors as described in any one of claims 1-5, characterized in that, include: The connector is fitted onto the connector, with one end of the retaining ring engaging the connector and the other end engaging the bellows, thus forming a connection between the connector and the bellows. A sealing ring is fitted on the connector on one side of the retaining ring, and a deformable sealing element is fitted on the bellows on the other side of the retaining ring. The retaining ring is pressed onto the bellows, and the retaining ring compresses the sealing ring and deformable seal, so that the sealing ring and deformable seal form a corresponding compression amount, thereby sealing the mating position of the bellows and the connector.

7. The method for manufacturing a corrugated hose with connectors as described in claim 6, characterized in that, The retaining rings are distributed around the mating position of the bellows and the connector, and constrain the relative position of the bellows and the connector along the axial direction and along the circumferential direction.

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