Quick connection stress relieving device for flexible rope and metal joint

Abstract

A stress relieving device for quick connection of a flexible rope and a metal connector comprises a stress relieving sleeve and a connecting mechanism in the stress relieving sleeve. The stress relieving sleeve is of a spindle-shaped structure, the connecting mechanism comprises a connecting pipe which is arranged in one end of the stress relieving sleeve and arranged in the axis direction of the stress relieving sleeve, and the inner wall of the connecting pipe is provided with an internal thread capable of being spirally connected with the metal connector. The other end of the stress relieving sleeve is provided with a through hole in the axis direction, the through hole can allow the flexible rope to penetrate through, the through hole is communicated with the connecting pipe, one end of the flexible rope can sequentially penetrate through the through hole and the connecting pipe and is connected with the metal connector, and after connection is completed, the stress relieving device can be rapidly connected with the metal connector through the internal threads of the connecting pipe. The flexible rope can conduct the stress to the stress relieving sleeve in the using process, the stress relieving sleeve enables the stress to be effectively released through deformation and stress of the stress relieving sleeve, and the service life of the flexible rope and the metal connector at the connecting position is remarkably prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of connection devices, in particular to a stress elimination device for quickly connecting a flexible rope and a metal joint. Background Art

[0002] Marine scientific research equipment and floating platforms such as offshore observation buoy cables, functional cables for ocean exploration, offshore oil and gas platforms, floating wind turbines, and marine ranch platforms operate in seawater for a long time. Such equipment and platforms are mainly fixed to the seabed by flexible rope mooring systems. The mooring system is usually designed in a catenary shape. Marine observation equipment and marine engineering platforms will sway up and down and left and right with the fluctuations of the waves. This type of situation will cause bending fatigue and stress concentration problems at the connection between the flexible rope and the metal joint. If not intervened, it will affect the service life of the mooring system. Utility Model Content

[0003] In order to solve the technical problems existing in the above-mentioned background technology, the utility model provides a flexible rope and a metal joint quick connection stress relief device.

[0004] The technical solution of this utility model is as follows:

[0005] A flexible rope and metal joint quick connection stress relief device, including a stress relief sleeve and a connecting mechanism inside it. As the core technical concept of the utility model, the stress relief sleeve is configured as a spindle-shaped structure, and the connecting mechanism includes a connecting tube arranged inside one end of the stress relief sleeve and arranged along the axial direction of the stress relief sleeve. The inner wall of the connecting tube is provided with an internal thread that can be spirally connected to the metal joint. The other end of the stress relief sleeve is provided with a through hole that can accommodate the flexible rope passing through along its axial direction, and the through hole is connected to the connecting tube. One end of the flexible rope can pass through the through hole and the connecting tube in sequence and be connected to the metal joint. After the connection is completed, the stress relief device (the above-mentioned flexible rope and metal joint quick connection stress relief device) can be quickly connected to the metal joint through the internal thread of the connecting tube. When the flexible rope is subjected to external force during use, the stress will be transmitted to the stress relief sleeve. The stress relief sleeve can be effectively released through its own deformation and force, so as to solve the problems of stress concentration and bending fatigue at the connection position of the flexible rope and the metal joint, and significantly improve the service life of the flexible rope and the metal joint at the connection.

[0006] In the flexible rope and metal joint quick connection stress relief device as described above, in order to enable the stress on the flexible rope to be more fully transmitted to the stress relief sleeve, the inner diameter of the through hole is set to match the outer diameter of the flexible rope.

[0007] The flexible rope and metal joint quick connection stress relief device as described above is designed to ensure the structural strength of the stress relief sleeve itself so that it can better release stress, while ensuring the connection strength between the connecting mechanism and the stress relief sleeve. The stress relief sleeve is a one-time injection molding based on the connecting mechanism.

[0008] In order to enable the stress relief sleeve to deform smoothly to release the stress and ensure the stress release effect of the stress relief sleeve, the Shore hardness of the stress relief sleeve is 40-80.

[0009] In order to further extend the service life of the stress relief sleeve, the injection molding material of the stress relief sleeve includes an anti-aging agent, a lubricant, and a combination of one or several material particles of a masterbatch.

[0010] In the flexible rope and metal joint quick connection stress relief device as described above, in order to make the connection between the connecting tube and the stress relief sleeve more secure, the connecting mechanism also includes a fixing tube arranged between the through hole and the connecting tube, the outer diameter of the connecting tube is smaller than the inner diameter of the fixing tube, and the inner end is connected to the fixing tube.

[0011] As a preferred embodiment, in order to ensure the connection strength between the connecting pipe and the fixed pipe, and further ensure the connection strength between the connecting pipe and the stress relief sleeve, the connecting pipe and the fixed pipe are integrally formed.

[0012] To facilitate the connection mechanism, the stress relief sleeve can more conveniently complete the injection molding work. The inner wall of the fixed tube is provided with an internal thread, through which it can be threadedly connected to the molding column on the injection mold to ensure the position stability of the connection mechanism during the injection molding process.

[0013] In order to gradually release the stress transmitted by the flexible rope to the stress relief sleeve from one end of the stress relief sleeve away from the connecting pipe to the middle of the stress relief sleeve, the stress relief sleeve has the largest outer diameter at the position corresponding to the fixed pipe.

[0014] As described above, a flexible rope and metal joint quick connection stress relief device, the outer end of the connecting pipe is also provided with a rubber gasket, and the rubber gasket can be used to seal the threaded connection position of the connecting pipe and the metal joint, thereby achieving waterproof work at the connection between the connecting pipe and the metal joint, ensuring the service life of the threaded connection between the connecting pipe and the metal joint, and further ensuring the service life of the stress relief sleeve.

[0015] The beneficial effects of the utility model are as follows: the utility model is a stress relief device for quickly connecting a flexible rope and a metal joint, one end of the flexible rope can pass through the through hole and the connecting pipe in sequence and be connected to the metal joint, after the connection is completed, the stress relief device can be quickly connected to the metal joint through the internal thread of the connecting pipe, when the flexible rope is subjected to external force during use, the stress will be transmitted to the stress relief sleeve, and the stress relief sleeve can effectively release the stress through its own deformation and force, and the stress relief device has a simple structure and is easy to manufacture, and can adapt to mass production, effectively solving the problems of stress concentration and bending fatigue at the connection position of the flexible rope and the metal joint, and significantly improving the service life of the flexible rope and the metal joint at the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

[0017] In the attached picture:

[0018] Figure 1 It is a structural schematic diagram of the stress relief device in the embodiment;

[0019] Figure 2 is a cross-sectional view of a stress relief device in an embodiment;

[0020] Figure 3 Schematic diagram of the injection molding method of the stress relief sleeve in the embodiment;

[0021] The components represented by the reference numerals in the figure are:

[0022] 1. stress relief sleeve; 11. through hole; 2. connection mechanism; 21. connection pipe; 22. fixing pipe; 3. injection mold; 31. first mold block; 311. first molding column; 32. second mold block; 321. second molding column; 322. injection port. DETAILED DESCRIPTION

[0023] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.

[0024] Example

[0025] This embodiment provides a flexible rope and metal joint quick connection stress relief device, see Figure 1, including a stress relief sleeve 1 and a connecting mechanism 2 inside thereof, the flexible rope to be connected can pass through the stress relief sleeve 1 and the connecting mechanism 2 inside thereof, and can be fixedly connected to the metal joint through resin cold treatment or other treatment methods, the stress relief device (the above-mentioned flexible rope and metal joint quick connection stress relief device) can be quickly connected to the metal joint through the connecting mechanism 2, the stress on the flexible rope can be transmitted to the stress relief device, and the stress can be released through the stress relief device, thereby protecting the connection between the flexible rope and the metal joint. The structure of the stress relief device is described in detail below.

[0026] In this embodiment, combined with Figure 2 As one of the core technical concepts of the utility model, the stress relief sleeve 1 is arranged as a spindle-shaped structure, the connecting mechanism 2 is arranged inside one end of the stress relief sleeve 1, and is a through structure along the axial direction of the stress relief sleeve 1, and the other end of the stress relief sleeve 1 (away from the end of the connecting mechanism 2) is provided with a through hole 11 along its axial direction that can accommodate a flexible rope to pass through, and the through hole 11 is connected with the connecting mechanism 2, the flexible rope can pass through the through hole 11 and the connecting mechanism 2 in turn, and be connected to the metal joint, the stress relief sleeve 1 can be connected to the metal joint through a connecting device, so as to realize the protection of the connection between the flexible rope and the metal joint.

[0027] As a preferred embodiment, in order to enable the stress on the flexible rope to be more fully transmitted to the stress relief sleeve 1, the inner diameter of the through hole 11 is set to match the outer diameter of the flexible rope.

[0028] On the basis of the above structure, as for the molding method of the stress relief sleeve 1, in order to ensure the structural strength of the stress relief sleeve 1 itself so that it can better release stress, and at the same time ensure the connection strength between the connecting mechanism 2 and the stress relief sleeve 1, the stress relief sleeve 1 is a one-time injection molding based on the connecting mechanism 2.

[0029] In order to enable the stress relief sleeve 1 to deform smoothly to release the stress and ensure the stress release effect of the stress relief sleeve 1, the Shore hardness of the stress relief sleeve 1 is 40-80.

[0030] In order to further extend the service life of the stress relief sleeve 1, the injection molding material of the stress relief sleeve 1 includes, in addition to a combination of one or more of PU particles, TPE particles, ABS environmentally friendly particles, natural rubber and synthetic rubber particles, an anti-aging agent, a lubricant, and a combination of one or more material particles of a masterbatch.

[0031] In this embodiment, as another core technical concept of the utility model, the connecting mechanism 2 includes a connecting tube 21 arranged inside one end of the stress relief sleeve 1 and arranged along the axial direction of the stress relief sleeve 1. The inner wall of the connecting tube 21 is provided with an internal thread that can be spirally connected to the metal joint, and the through hole 11 is connected to the connecting tube 21. One end of the flexible rope can pass through the through hole 11 and the connecting tube 21 in sequence and be connected to the metal joint. After the connection is completed, the stress relief device can be quickly connected to the metal joint through the internal thread of the connecting tube 21. When the flexible rope is subjected to external force during use, the stress will be transmitted to the stress relief sleeve 1. The stress relief sleeve 1 can effectively release the stress through its own deformation and force, thereby solving the problems of stress concentration and bending fatigue between the flexible rope and the metal joint at the connection position, and significantly improving the service life of the flexible rope and the metal joint at the connection.

[0032] As a preferred embodiment, in order to make the connection between the connecting tube 21 and the stress relief sleeve 1 more secure, the connecting mechanism 2 also includes a fixing tube 22 arranged between the through hole 11 and the connecting tube 21, the outer diameter of the connecting tube 21 is smaller than the inner diameter of the fixing tube 22, and the inner end is connected to the fixing tube 22.

[0033] As a further preferred embodiment, in order to ensure the connection strength between the connecting pipe 21 and the fixing pipe 22, and further ensure the connection strength between the connecting pipe 21 and the stress relief sleeve 1, the connecting pipe 21 and the fixing pipe 22 are integrally formed.

[0034] In order to allow the stress transmitted by the flexible rope to the stress relief sleeve 1 to be gradually released from the end of the stress relief sleeve 1 away from the connecting pipe 21 to the middle of the stress relief sleeve 1, the stress relief sleeve 1 has the maximum outer diameter at the position corresponding to the fixing pipe 22.

[0035] On the basis of the above structure, the outer end of the connecting pipe 21 is also provided with a groove, and a rubber gasket (not shown) is provided through the groove, and the rubber gasket can be used to seal the threaded connection position between the connecting pipe 21 and the metal joint, thereby achieving waterproof work at the connection between the connecting pipe 21 and the metal joint, ensuring the service life of the threaded connection between the connecting pipe 21 and the metal joint, and further ensuring the service life of the stress relief sleeve 1.

[0036] In this embodiment, combined with Figure 3A molding method of the above-mentioned stress relief device is also provided, which is an injection mold 3 for a stress relief sleeve 1, including a first mold block 31 and a second mold block 32 that are arranged opposite to each other and can be pressed against each other. After being pressed against each other, the two mold blocks are provided with a cavity that matches the shape of the stress relief sleeve 1, wherein the first mold block 31 and the second mold block 32 are respectively provided with a first molding column 311 and a second molding column 321, and one side of the second mold block 32 is provided with an injection port 322, and the two ends of the connecting structure can respectively cooperate with the first molding column 311 and the second molding column 321, and the injection molding work of the stress relief sleeve 1 is completed through the injection port 322.

[0037] Based on the connecting mechanism 2, the stress relief sleeve 1 can more conveniently complete the injection molding work. The inner wall of the fixed tube 22 is provided with an internal thread, and the end of the first molding column 311 is provided with an external thread. The fixed tube 22 can be threadedly connected with the outer end of the first molding column 311 of the first mold block 31 of the injection mold 3, and the second molding column 321 can be inserted into the connecting tube 21 to ensure the position stability of the connecting mechanism 2 during the injection molding process.

Claims

1. A flexible rope and metal joint quick connection stress relief device, characterized in that: It comprises a stress relief sleeve (1) and a connecting mechanism (2) inside it; The stress relief sleeve (1) is a spindle-shaped structure, and the connecting mechanism (2) comprises a connecting pipe (21) arranged inside one end of the stress relief sleeve (1) and arranged along the axial direction of the stress relief sleeve (1), and the inner wall of the connecting pipe (21) is provided with an internal thread capable of being spirally connected to a metal joint; The other end of the stress relief sleeve (1) is provided with a through hole (11) along its axial direction for accommodating the passage of a flexible rope, and the through hole (11) is connected to the connecting pipe (21).

2. A flexible rope and metal joint quick connection stress relief device according to claim 1, characterized in that: The inner diameter of the through hole (11) is arranged to match the outer diameter of the flexible rope.

3. A flexible rope and metal joint quick connection stress relief device according to claim 1, characterized in that: The stress relief sleeve (1) is one-step injection-molded based on the connection mechanism (2).

4. A flexible rope and metal joint quick connection stress relief device according to claim 3, characterized in that: The Shore hardness of the stress relief sleeve (1) is 40-80.

5. A flexible rope and metal joint quick connection stress relief device according to claim 4, characterized in that: The injection molding material of the stress relief sleeve (1) comprises an anti-aging agent, a lubricant, and a masterbatch, or a combination of several material particles.

6. A flexible rope and metal joint quick connection stress relief device according to claim 3, characterized in that: The connection mechanism (2) further comprises a fixed tube (22) arranged between the through hole (11) and the connection tube (21); the outer diameter of the connection tube (21) is smaller than the inner diameter of the fixed tube (22), and the inner end of the connection tube (21) is connected to the fixed tube (22).

7. A flexible rope and metal joint quick connection stress relief device according to claim 6, characterized in that: The connecting pipe (21) and the fixing pipe (22) are integrally formed.

8. A flexible rope and metal joint quick connection stress relief device according to claim 6, characterized in that: The inner wall of the fixing tube (22) is provided with an internal thread.

9. A flexible rope and metal joint quick connection stress relief device according to claim 6, characterized in that: The stress relief sleeve (1) has a maximum outer diameter at a position corresponding to the fixed pipe (22).

10. A flexible rope and metal joint quick connection stress relief device according to any one of claims 1 to 9, characterized in that: The outer end of the connecting pipe (21) is also provided with a rubber gasket.

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