Heat dissipation type marine fairlead protective sleeve

Abstract

A sheath main body comprises a large-opening sheath, a middle sheath and a small-opening sheath, a plurality of metal pieces are arranged on the inner side face, making contact with a mooring rope, of the sheath main body, the contact faces of the metal pieces and the mooring rope are flush with the inner side surface of the sheath main body, and the metal pieces have the effects of heat dissipation, static electricity conduction and structure enhancement. The contact between the metal piece and the cable can effectively dissipate heat and conduct static electricity, the structure supporting performance of the sheath body can be improved, and the comprehensive performance of the fairlead sheath is improved. The metal piece comprises one or more of a heat dissipation piece, an anti-static piece and a structural reinforcing piece, the metal piece can be made of different materials correspondingly according to different performances, and the metal piece has high adaptability; and the metal pieces are independently or simultaneously arranged at the corresponding positions of the large-opening sheath, the middle sheath or the large-opening sheath according to the actual application condition, so that the heat dissipation and anti-static performance and the structure reinforcing and supporting performance of the sheath main body can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ship cable guide devices, in particular to a heat dissipation type ship cable guide hole protective cover. Background Art

[0002] A fairlead, also known as a bulwark cable eye, is a closed-hole fairlead installed on the bulwark, a circular or elliptical annular casting that limits the cable's exit. Typically made of cast iron or cast steel, the fairlead is installed on the bulwark to guide the cable through the hull and prevent damage. It is widely used in mooring and is an essential feature in shipbuilding and marine engineering. After long-term use, cables in fairleads are prone to wear and tear, leading to breakage and accidents. Fairlead covers are typically installed within the fairlead to reduce cable wear and prevent cable breakage.

[0003] Patent No. 2023226535055 discloses a ship fairlead cover, comprising an inner bulwark member and an outer bulwark member. The inner bulwark member and the outer bulwark member each comprise a wide end with a larger cross-section and a narrow end with a smaller cross-section. A parabolic flared wall is disposed between the wide and narrow ends. An intermediate bulwark ring is disposed between the inner and outer bulwark members, and the left and right ends of the intermediate bulwark ring are integrally connected to the narrow end of the inner bulwark member and the narrow end of the outer bulwark member, respectively.

[0004] The joints formed by the intermediate bulwark ring and the narrow ends of the inner and outer bulwark members of the present application are located on the left and right sides of the narrowest position of the sheath. The narrowest position of the sheath is formed by the intermediate bulwark ring of the complete structure, thereby improving the structural strength of the narrowest position of the fairlead sheath, reducing the wear of the narrowest position of the fairlead sheath, and increasing the service life of the fairlead sheath.

[0005] However, the long-term contact and friction between the fairlead sheath and the cable, i.e., the cable, generates heat and static electricity. These heat and static electricity cannot be efficiently dissipated and conducted away, causing the cable to easily fuse. In addition, the sheath is arranged outside the fairlead, and it bears the huge external force of the cable, making it easily damaged and broken.

[0006] Therefore, in practical applications, a heat dissipating ship fairlead hole protective cover is needed, which can effectively dissipate heat, absorb static electricity, and have high supporting force. Utility Model Content

[0007] In response to the problems in the related art, the present application discloses a heat-dissipating marine fairlead protective cover, which solves the problem in the related art of heat generated by friction between the fairlead cover and the cable and the problem of easy melting caused by static electricity, while improving the supporting performance of the cover structure.

[0008] To achieve the above objectives, this application provides the following technical solutions:

[0009] A heat-dissipating ship fairlead protective cover comprises a cover body, the cover body comprising a large-mouth cover, a middle cover and a small-mouth cover. The cover body is a trumpet-shaped structure that is narrow in the middle and wide at both ends. The side diameter of the large-mouth cover is larger than the side diameter of the small-mouth cover. The inner side surface of the cover body that contacts the cable is provided with a plurality of metal parts, and the contact surface of the metal parts with the cable is flush with the inner surface of the cover body.

[0010] As a further solution of the present application: the metal parts include one or more of heat dissipation parts, anti-static parts and structural reinforcement parts.

[0011] As a further solution of the present application: a plurality of the metal parts are individually or simultaneously provided on the large-mouth sheath, the middle sheath or the small-mouth sheath.

[0012] As a further solution of the present application: the metal piece is annular and is embedded inside the inner side surface of the sheath body.

[0013] As a further solution of the present application: the width of the metal piece is 6-12 cm.

[0014] As a further solution of the present application: the metal piece passes through the sheath body.

[0015] As a further solution of the present application: the sheath body includes a wear-resistant layer, a buffer layer is provided on the outside of the wear-resistant layer, and the buffer layer includes a plurality of buffer strips arranged alternately.

[0016] As a further solution of the present application: the metal piece is provided through the wear-resistant layer in the middle of the middle sheath, the buffer layer is provided on the outside of the metal piece, and the metal piece is embedded in the junction of the wide-mouth sheath and the middle sheath.

[0017] As a further solution of the present application: the sheath body is composed of a large-mouth sheath, a middle sheath and a small-mouth sheath that are connected separately, and the large-mouth sheath, the middle sheath and the small-mouth sheath are respectively provided with connecting holes at the connection positions, and a connecting sleeve can be inserted into the connecting hole, and a connecting thread matching the connecting bolt is provided in the connecting sleeve, one end of the connecting sleeve is threadedly connected to the connecting bolt, and the other end of the connecting sleeve is provided with a limiting groove, and the limiting groove is in the shape of a groove, and the limiting groove is matched with a square limiting plate, and a limiting card groove matching the limiting groove is provided at the center of one side of the limiting plate, and the limiting card groove is engaged with the limiting groove to realize the limitation of the connecting sleeve in the connecting hole, and the connecting bolt and the limited connecting sleeve are fixedly connected by the connecting thread to realize the composition connection of the large-mouth sheath, the middle sheath and the small-mouth sheath.

[0018] As a further solution of the present application: the connecting bolt is provided with a limiting sleeve at the connection end with the connecting sleeve, and a limiting cap is provided at one end of the limiting sleeve. The limiting cap is clamped to the outside of the connecting hole to enhance the fastening connection of the large-mouth sheath, the middle sheath and the small-mouth sheath.

[0019] In summary, the beneficial effects of this application are:

[0020] 1. Heat dissipation type marine fairlead hole protective cover, the cover body includes a large-mouth cover, a middle cover and a small-mouth cover. The inner side of the cover body that contacts the cable is provided with multiple metal parts. The contact surface between the metal parts and the cable is flush with the inner surface of the cover body. The metal parts have the functions of heat dissipation, static electricity conduction and structural reinforcement. The contact between the metal parts and the cable can effectively dissipate heat and conduct static electricity, and can improve the structural support performance of the cover body, thereby comprehensively improving the overall performance of the fairlead hole cover.

[0021] 2. Metal parts include one or more of heat dissipation parts, anti-static parts and structural reinforcement parts. Depending on the performance, metal parts can be made of different materials. Metal parts have high adaptability.

[0022] 3. Metal parts are set individually or simultaneously at the corresponding positions of the large-mouth sheath, middle sheath or small-mouth sheath according to the actual application situation, which can effectively improve the heat dissipation, anti-static and supporting performance of the sheath body.

[0023] 4. The metal parts are ring-shaped and have high heat dissipation, anti-static and supporting properties.

[0024] 5. The width of the metal part is 6-12 cm, and the metal part and the cable have a large contact area, which improves the heat dissipation and anti-static performance.

[0025] 6. The metal parts are embedded in the inner side of the sheath body, and the sheath body has high integrity. The sheath body has higher supporting performance on the basis of heat dissipation and anti-static.

[0026] 7. The metal parts are arranged through the main body of the sheath. The non-contact surface between the metal parts and the cable is in contact with the base of the cable guide hole, which can effectively improve the heat dissipation and anti-static performance of the metal parts and have higher supporting performance.

[0027] 8. The sheath body includes a wear-resistant layer and a buffer layer. The buffer layer includes a plurality of buffer strips arranged alternately. The wear-resistant layer improves the wear resistance of the sheath body. The outer side of the sheath body is composed of a buffer layer composed of a plurality of buffer strips arranged alternately. The buffer layer is preferably made of buffer rubber, which improves the stability of the installation of the sheath body and the cable guide hole.

[0028] 9. A metal piece is provided through the wear-resistant layer in the middle of the middle jacket, and a buffer layer is provided on the outside of the metal piece. The metal piece is provided through the middle of the middle jacket, which improves the heat dissipation and anti-static performance of the jacket body and strengthens the structural support performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to provide further understanding of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application.

[0030] In the attached figure:

[0031] Figure 1 This is a schematic cross-sectional structural diagram of the sheath body in Example 1 of the present application.

[0032] Figure 2 This is a schematic diagram of the cross-sectional three-dimensional structure of the sheath body in Example 1 of the present application.

[0033] Figure 3 This is a schematic diagram of the top structure of the sheath body in Example 1 of the present application.

[0034] Figure 4 This is a schematic diagram of the three-dimensional structure of the sheath body in Example 1 of the present application.

[0035] Figure 5 This is a schematic diagram of the split installation structure of the sheath body in Example 1 of the present application.

[0036] Figure 6 This is a schematic diagram of the structure in which the metal part penetrates the sheath body in this application.

[0037] Figure 7 This is a schematic cross-sectional structural diagram of the sheath body provided with three metal parts in the second embodiment of the present application.

[0038] Figure 8 This is a schematic cross-sectional view of the structure of the sheath body of this application.

[0039] Figure 9 This is an enlarged schematic diagram of the cross-sectional structure of the sheath main body of this application, which is composed of separate parts, at connection C.

[0040] Figure 10 This is a schematic diagram of the exploded structure of the connecting bolts and connecting sleeves composed of the separate parts of the sheath main body of this application.

[0041] Reference numerals:

[0042] 1. Sheath body; 11. Large-mouth sheath; 12. Middle sheath; 13. Small-mouth sheath; 2. Metal parts; 31. Connecting groove; 32. Connecting protrusion; 41. Wear-resistant layer; 42. Buffer layer; 43. Buffer strip; 5. Connecting bolt; 51. Limiting sleeve; 52. Connecting sleeve; 53. Limiting plate; 54. Limiting groove; DETAILED DESCRIPTION

[0043] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatuses and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0044] It should be noted that all directional indications in the embodiments (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0045] In addition, the descriptions of "first" and "second" in the embodiments are only for descriptive purposes and do not specifically refer to the order or ranking, nor are they used to limit the present application. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0046] In order to further understand the content, features and effects of the present application, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0047] Example 1:

[0048] like Figure 1-5 As shown:

[0049] The heat dissipation type marine fairlead hole protective cover includes a cover body 1, which includes a large-mouth cover 11, a middle cover 12 and a small-mouth cover 13. The side diameter of the large-mouth cover 11 is larger than the side diameter of the small-mouth cover 13. The large-mouth cover 11, the middle cover 12 and the small-mouth cover 13 are transitionally connected. The cover body 1 is a trumpet-shaped structure that is narrow in the middle and wide at both ends.

[0050] The inner side of the sheath body 1, where it contacts the cable, is equipped with multiple metal components 2. The cable-contacting surfaces of these components are flush with the inner surface of the sheath body 1. These components 2 include one or more of heat dissipation components, antistatic components, and structural reinforcements. These components 2 can be individually or simultaneously installed on the large-mouth sheath 11, the middle sheath 12, or the small-mouth sheath 13.

[0051] Metal component 2 functions as a heat dissipator, static conductor, and structural reinforcement. Contact with the cable effectively dissipates heat and conducts static electricity. It also provides structural support for the main sheath 1, enhancing the overall performance of the fairlead sheath. Metal component 2 includes one or more of a heat dissipator, an antistatic component, and a structural reinforcement. Depending on its performance, metal component 2 can be made of different materials, offering high adaptability.

[0052] The metal part 2 is set separately or simultaneously at the corresponding position of the large-mouth sheath 11, the middle sheath 12 or the small-mouth sheath 13, according to the actual application situation. The metal part 2 is set at the maximum force point between the sheath body 1 and the cable, which can effectively improve the heat dissipation and anti-static properties of the sheath body 1 and enhance the structural performance.

[0053] The metal part 2 is made of one or more metal materials and has heat dissipation, anti-static and support functions. The metal part 2 is preferably made of aluminum for heat dissipation, anti-static and structural reinforcement.

[0054] Alternatively, the metal part 2 is composed of three parts, each of which has the functions of heat dissipation, anti-static and support.

[0055] Specifically, such as Figure 1-5 As shown, two metal parts 2 are provided on the inner side of the sheath body 1 , and the metal parts 2 are respectively provided at the junction of the large-mouth sheath 11 and the middle sheath 12 , and in the middle of the middle sheath 12 .

[0056] The metal part 2 is annular and has high heat dissipation, anti-static and supporting properties.

[0057] In addition, the width of the metal piece 2 is 6-12 cm, preferably 10 cm, and the metal piece 2 has a larger contact area with the cable, thereby improving the heat dissipation and anti-static performance.

[0058] In addition, the sheath body 1 includes a wear-resistant layer 41 and a buffer layer 42. The buffer layer 42 includes a plurality of buffer strips 43 arranged alternately. The wear-resistant layer 41 improves the wear resistance of the sheath body 1. The outer side of the sheath body 1 is composed of a buffer layer 42 composed of a plurality of alternate buffer strips 43. The buffer layer 42 is preferably made of buffer rubber, which improves the stability of the installation of the sheath body 1 and the cable guide hole.

[0059] The metal component 2 at the junction of the large-mouth sheath 11 and the middle sheath 12 is embedded in the wear-resistant layer 41. The sheath body 1 is provided with multiple mounting holes, and the metal component 2 is also provided with mounting holes at corresponding positions. Fastening bolts are passed through the mounting holes on the sheath body 1 and the metal component 2 to achieve the fixed installation of the metal component 2 and the sheath body 1.

[0060] The metal part 2 is embedded in the junction of the large-mouth sheath 11 and the middle sheath 12. The sheath body 1 has high integrity and has higher supporting performance on the basis of heat dissipation and anti-static.

[0061] like Figure 6 As shown:

[0062] The metal member 2 extends through the middle of the sheath 12 in the middle of the sheath body 1. A concave connection groove 31 is provided at the connection end of the metal member 2. The wear-resistant layer 41 of the sheath body 1 is provided with a connection protrusion 32 at the corresponding connection position. The connection groove 31 and the connection protrusion 32 cooperate to securely connect the metal member 2 to the sheath body 1. The metal member 2 easily connects to the sheath body 1 and has a large contact area, providing efficient heat dissipation and antistatic properties, as well as structural reinforcement, effectively improving the pressure resistance of the sheath body 1.

[0063] A metal part 2 is provided through the wear-resistant layer 41 in the middle position of the middle sheath 12, and a buffer layer 42 is provided on the outside of the metal part 2. The metal part 2 is provided through the middle position of the middle sheath 12 to improve the heat dissipation performance and anti-static performance of the sheath main body 1 and enhance the structural support performance. The external buffer layer 42 is composed of multiple alternating buffer strips 43 to improve the stability of the installation of the sheath main body 1 and the cable guide hole main body.

[0064] In addition, if Figure 8-10 As shown:

[0065] The sheath body 1 is composed of a large-mouth sheath 11, a middle sheath 12 and a small-mouth sheath 13 which are connected separately. The large-mouth sheath 11, the middle sheath 12 and the small-mouth sheath 13 are respectively provided with connection holes at the connection positions. The connection between the small-mouth sheath 13 and the middle sheath 12 is a connection through hole, and the connection between the large-mouth sheath 11 is a connection blind hole.

[0066] The connecting sleeve 52 can be inserted from the end of the small-mouthed sheath 13 into the through-hole until the large-mouthed sheath 11 is connected to the bottom of the blind hole. A connecting thread matching the connecting bolt 5 is provided in the connecting sleeve 52. One end of the connecting sleeve 52 is threadedly connected to the connecting bolt 5. A limiting groove 54 is provided at the other end of the connecting sleeve 52. The limiting groove 54 is in the shape of a groove. The limiting groove 54 is matched with a square limiting plate 53. A limiting card groove matching the limiting groove 54 is provided at the center of one side of the limiting plate 53. The limiting card groove is inserted into the connecting hole through the limiting hole groove from the outside of the large-mouthed sheath 11 and is clamped and limited with the limiting groove 54.

[0067] The limiting slot is engaged with the limiting slot 54 to realize the limitation of the connecting sleeve 52 in the connecting hole. The connecting bolt 5 is provided with a limiting sleeve 51 at the connection end with the connecting sleeve 52. A limiting cap is provided at one end of the limiting sleeve 51. The limiting cap is engaged with the outside of the connecting hole to enhance the fastening connection between the large-mouth sheath 11, the middle sheath 12 and the small-mouth sheath 13.

[0068] The connecting bolt 5 is fastened to the limited connecting sleeve 52 through the connecting thread, and the limiting sleeve 51 is restricted by the limiting cap, thereby realizing the fastening connection of the large-mouth sheath 11, the middle sheath 12 and the small-mouth sheath 13 as a whole.

[0069] Example 2:

[0070] like Figure 7 As shown:

[0071] The heat dissipation type marine fairlead hole protective cover includes a cover body 1, which includes a large-mouth cover 11, a middle cover 12 and a small-mouth cover 13. The side diameter of the large-mouth cover 11 is larger than the side diameter of the small-mouth cover 13. The large-mouth cover 11, the middle cover 12 and the small-mouth cover 13 are transitionally connected. The cover body 1 is a trumpet-shaped structure that is narrow in the middle and wide at both ends.

[0072] The inner side of the sheath body 1, where it contacts the cable, is equipped with multiple metal components 2. The cable-contacting surfaces of these components are flush with the inner surface of the sheath body 1. These components 2 include one or more of heat dissipation components, antistatic components, and structural reinforcements. These components 2 can be individually or simultaneously installed on the large-mouth sheath 11, the middle sheath 12, or the small-mouth sheath 13.

[0073] Metal component 2 functions as a heat dissipator, static conductor, and structural reinforcement. Contact with the cable effectively dissipates heat and conducts static electricity. It also provides structural support for the main sheath 1, enhancing the overall performance of the fairlead sheath. Metal component 2 includes one or more of a heat dissipator, an antistatic component, and a structural reinforcement. Depending on its performance, metal component 2 can be made of different materials, offering high adaptability.

[0074] The metal part 2 is set separately or simultaneously at the corresponding position of the large-mouth sheath 11, the middle sheath 12 or the small-mouth sheath 13, according to the actual application situation. The metal part 2 is set at the maximum force point between the sheath body 1 and the cable, which can effectively improve the heat dissipation and anti-static properties of the sheath body 1 and enhance the structural performance.

[0075] The metal part 2 is made of one or more metal materials and has heat dissipation, anti-static and support functions. The metal part 2 is preferably made of aluminum for heat dissipation, anti-static and structural reinforcement.

[0076] Alternatively, the metal part 2 is composed of three parts, each of which has the functions of heat dissipation, anti-static and support.

[0077] Specifically, such as Figure 7 As shown, three metal parts 2 are provided on the inner side of the sheath body 1 , and the metal parts 2 are respectively provided at the junction of the large-mouth sheath 11 and the middle sheath 12 , the middle of the middle sheath 12 , and the junction of the small-mouth sheath 13 and the middle sheath 12 .

[0078] The metal part 2 is annular and has high heat dissipation, anti-static and supporting properties.

[0079] In addition, the width of the metal piece 2 is 6-12 cm, preferably 11 cm, and the metal piece 2 has a larger contact area with the cable, thereby improving the heat dissipation and anti-static performance.

[0080] In addition, the sheath body 1 includes a wear-resistant layer 41 and a buffer layer 42. The buffer layer 42 includes a plurality of buffer strips 43 arranged alternately. The wear-resistant layer 41 improves the wear resistance of the sheath body 1. The outer side of the sheath body 1 is composed of a buffer layer 42 composed of a plurality of alternate buffer strips 43. The buffer layer 42 is preferably made of buffer rubber, which improves the stability of the installation of the sheath body 1 and the cable guide hole.

[0081] The metal parts 2 are embedded in the wear-resistant layer 41 at the junction of the large-mouthed sheath 11 and the middle sheath 12, and at the junction of the small-mouthed sheath 13 and the middle sheath 12. The sheath body 1 is provided with multiple mounting holes, and the metal parts 2 are also provided with mounting holes at corresponding positions. Fastening bolts are passed through the mounting holes in the sheath body 1 and the metal parts 2 to achieve the fixed installation of the metal parts 2 and the sheath body 1.

[0082] The metal part 2 is embedded in the junction of the large-mouth sheath 11 and the middle sheath 12 and the junction of the small-mouth sheath 13 and the middle sheath 12. The sheath body 1 has high integrity and higher supporting performance based on heat dissipation and anti-static properties.

[0083] like Figure 6 As shown:

[0084] The metal member 2 extends through the middle of the sheath 12 in the middle of the sheath body 1. A concave connection groove 31 is provided at the connection end of the metal member 2. The wear-resistant layer 41 of the sheath body 1 is provided with a connection protrusion 32 at the corresponding connection position. The connection groove 31 and the connection protrusion 32 cooperate to securely connect the metal member 2 to the sheath body 1. The metal member 2 easily connects to the sheath body 1 and has a large contact area, providing efficient heat dissipation and antistatic properties, as well as structural reinforcement, effectively improving the pressure resistance of the sheath body 1.

[0085] A metal part 2 is provided through the wear-resistant layer 41 in the middle position of the middle sheath 12, and a buffer layer 42 is provided on the outside of the metal part 2. The metal part 2 is provided through the middle position of the middle sheath 12 to improve the heat dissipation performance and anti-static performance of the sheath main body 1 and enhance the structural support performance. The external buffer layer 42 is composed of multiple alternating buffer strips 43 to improve the stability of the installation of the sheath main body 1 and the cable guide hole main body.

[0086] In addition, if Figure 8-10 As shown:

[0087] The sheath body 1 is composed of a large-mouth sheath 11, a middle sheath 12 and a small-mouth sheath 13 which are connected separately. The large-mouth sheath 11, the middle sheath 12 and the small-mouth sheath 13 are respectively provided with connection holes at the connection positions. The connection between the small-mouth sheath 13 and the middle sheath 12 is a connection through hole, and the connection between the large-mouth sheath 11 is a connection blind hole.

[0088] The connecting sleeve 52 can be inserted from the end of the small-mouthed sheath 13 into the through-hole until the large-mouthed sheath 11 is connected to the bottom of the blind hole. A connecting thread matching the connecting bolt 5 is provided in the connecting sleeve 52. One end of the connecting sleeve 52 is threadedly connected to the connecting bolt 5. A limiting groove 54 is provided at the other end of the connecting sleeve 52. The limiting groove 54 is in the shape of a groove. The limiting groove 54 is matched with a square limiting plate 53. A limiting card groove matching the limiting groove 54 is provided at the center of one side of the limiting plate 53. The limiting card groove is inserted into the connecting hole through the limiting hole groove from the outside of the large-mouthed sheath 11 and is clamped and limited with the limiting groove 54.

[0089] The limiting slot is engaged with the limiting slot 54 to realize the limitation of the connecting sleeve 52 in the connecting hole. The connecting bolt 5 is provided with a limiting sleeve 51 at the connection end with the connecting sleeve 52. A limiting cap is provided at one end of the limiting sleeve 51. The limiting cap is engaged with the outside of the connecting hole to enhance the fastening connection between the large-mouth sheath 11, the middle sheath 12 and the small-mouth sheath 13.

[0090] The connecting bolt 5 is fastened to the limited connecting sleeve 52 through the connecting thread, and the limiting sleeve 51 is restricted by the limiting cap, thereby realizing the fastening connection of the large-mouth sheath 11, the middle sheath 12 and the small-mouth sheath 13 as a whole.

[0091] Finally, it should be noted that the above disclosure is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application. The scope of the present application is limited only by the appended claims.

Claims

1. A heat dissipation type marine fairlead protective cover, comprising a cover body (1), wherein the cover body (1) comprises a large-mouth cover (11), a middle cover (12) and a small-mouth cover (13), wherein the cover body (1) is a trumpet-shaped structure with a narrow middle portion and wide left and right ends, wherein the side diameter of the large-mouth cover (11) is larger than the side diameter of the small-mouth cover (13), and wherein: The inner side surface of the sheath body (1) in contact with the cable is provided with a plurality of metal parts (2), and the contact surface of the metal parts (2) with the cable is flush with the inner surface of the sheath body (1).

2. The heat dissipating marine fairlead protective cover according to claim 1, characterized in that: The metal part (2) includes one or more of a heat dissipation part, an antistatic part and a structural reinforcement part.

3. The heat dissipating marine fairlead protective cover according to claim 1, characterized in that: The plurality of metal pieces (2) are individually or simultaneously arranged on the large-mouth sheath (11), the middle sheath (12) or the small-mouth sheath (13).

4. The heat dissipating marine fairlead protective cover according to claim 1, characterized in that: The metal piece (2) is annular and is embedded inside the inner side surface of the sheath body (1).

5. The heat dissipating marine fairlead protective cover according to claim 4, characterized in that: The width of the metal piece (2) is 6-12 centimeters.

6. The heat dissipating marine fairlead protective cover according to claim 1, characterized in that: The metal part (2) is provided through the sheath body (1).

7. The heat dissipating marine fairlead protective cover according to claim 1, characterized in that: The sheath body (1) comprises a wear-resistant layer (41), a buffer layer (42) is provided on the outside of the wear-resistant layer (41), and the buffer layer (42) comprises a plurality of buffer strips (43) arranged alternately.

8. The heat dissipating marine fairlead protective cover according to claim 7, characterized in that: The metal part (2) is penetrated through the wear-resistant layer (41) at the middle position of the middle sheath (12), the buffer layer (42) is provided on the outside of the metal part (2), and the metal part (2) is embedded at the junction of the large-mouth sheath (11) and the middle sheath (12).

9. The heat dissipating marine fairlead protective cover according to claim 1, characterized in that: The sheath body (1) is composed of a large-mouth sheath (11), a middle sheath (12) and a small-mouth sheath (13) connected in separate parts. The large-mouth sheath (11), the middle sheath (12) and the small-mouth sheath (13) are respectively provided with connection holes at the connection positions. A connection sleeve (52) can be inserted into the connection hole. A connection thread matching the connection bolt (5) is provided in the connection sleeve (52). One end of the connection sleeve (52) is threadedly connected to the connection bolt (5), and the other end of the connection sleeve (52) is provided with a limit groove (54). The limiting groove (54) is in the shape of a groove. The limiting groove (54) is matched with a square limiting plate (53). A limiting card groove matched with the limiting groove (54) is provided at the center of one side of the limiting plate (53). The limiting card groove is engaged with the limiting groove (54) to realize the limiting of the connecting sleeve (52) in the connecting hole. The connecting bolt (5) is fixedly connected with the limited connecting sleeve (52) through a connecting thread to realize the composition connection of the large-mouth sheath (11), the middle sheath (12) and the small-mouth sheath (13).

10. The heat dissipating marine fairlead protective cover according to claim 9, characterized in that: The connecting bolt (5) is provided with a limiting sleeve (51) at the end connected to the connecting sleeve (52), and one end of the limiting sleeve (51) is provided with a limiting cap, which is clamped on the outside of the connecting hole to enhance the fastening connection of the large-mouth sheath (11), the middle sheath (12) and the small-mouth sheath (13).

Images