A connecting fitting for a deep water cable intermediate joint

Abstract

The utility model discloses a kind of connecting fittings of deepwater cable intermediate joint, it is related to cable joint technical field, including first gold body, second gold body and locking device, the one end of first gold body is equipped with the first fixed cavity for connecting cable conductor, the other end of first gold body is equipped with docking cavity;The one end of second gold body is equipped with the second fixed cavity for connecting cable conductor, the other end of second gold body is equipped with docking portion, docking portion is inserted in docking cavity;Locking device is arranged between docking cavity and docking portion, and locking device is used to fix docking cavity and docking portion.The connecting fitting of deepwater cable intermediate joint of the utility model can adapt to high water pressure, water flow impact and other working conditions in deepwater environment, ensure that the connecting fitting of cable joint is stably connected and conducts.

Description

Technical Field

[0001] This utility model relates to the field of cable joint technology, and in particular to a connecting hardware for a deep-water cable intermediate joint. Background Technology

[0002] With the rapid development of marine resource development, underwater tunnel construction, and deep-water water conservancy projects, the demand for underwater power transmission is increasing. As a key connecting component of underwater cable lines, the performance of the conductor connection hardware in cable joints directly determines the transmission stability and reliability of the entire cable line.

[0003] Currently, after the cable conductors are crimped to the connecting hardware, the two cables are inserted into the cable joint, and the two connecting hardware in the cable joint are tightly connected and conductive through friction. However, in deep water environments, when the cable joint is subjected to high water pressure and water flow impact, the connecting hardware is prone to loosening under external force, and the connection reliability of the cable joint deteriorates. Utility Model Content

[0004] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a connecting hardware for a deep-water cable intermediate joint, which can adapt to the high water pressure and water flow impact in deep-water environments, ensuring a stable connection and conductivity of the cable joint connecting hardware.

[0005] According to an embodiment of the present invention, the connecting hardware of the intermediate joint of the deep-water cable includes: a first hardware body, one end of the first hardware body is provided with a first fixing cavity for connecting the cable conductor, and the other end of the first hardware body is provided with a mating cavity. The second metal body has a second fixing cavity at one end for connecting the cable conductor, and a docking part at the other end of the second metal body, which is inserted into the docking cavity. A locking device is disposed between the docking cavity and the docking portion, and the locking device is used to fix the docking cavity and the docking portion.

[0006] The connecting hardware of the deep-water cable intermediate joint according to the embodiment of this utility model has at least the following beneficial effects: After the conductor part of the first cable is processed, it is inserted into the first fixed cavity of the first hardware and connected and conductive with the first hardware; after the conductor part of the second cable is processed, it is inserted into the second fixed cavity of the second hardware and connected and conductive with the second hardware; the cable with the first hardware is inserted into the cable joint, and then the cable with the second hardware is inserted into the cable joint, the two cables are moved until the joint part is inserted into the joint cavity, and the joint cavity and the joint part are securely connected by a locking device. Under the working conditions of high water pressure and water flow impact, the first hardware and the second hardware can still maintain a stable connection and conductivity.

[0007] According to some embodiments of the present invention, the locking device includes an annular locking groove and a plurality of first telescopic components. The locking groove is disposed on the inner surface of the docking cavity along the circumference of the docking cavity, and the plurality of first telescopic components are disposed on the outer surface of the docking portion along the circumference of the docking portion. The telescopic direction of the first telescopic components is parallel to the radial direction of the docking portion.

[0008] According to some embodiments of the present invention, the first telescopic component includes a mounting hole, an elastic mechanism, and a column. The mounting hole is disposed on the outer surface of the docking portion, the column is inserted into the mounting hole, and the elastic mechanism is provided between the column and the bottom of the mounting hole. The elastic mechanism is configured to drive the column to extend into the locking groove.

[0009] According to some embodiments of the present invention, the circumferential sidewall of the column is provided with a tapered groove, and when the column extends into the locking groove, the tapered groove is located between the locking groove and the mounting hole.

[0010] According to some embodiments of the present invention, a limiting plate is provided at the opening end of the mounting hole, the limiting plate is provided with a through hole, the column is inserted through the through hole, and an annular platform is provided on the side of the column facing the mounting hole, and the elastic mechanism abuts against the annular platform.

[0011] According to some embodiments of this utility model, the limiting plate is provided with external threads, the mounting hole is provided with internal threads, and the limiting plate is threadedly connected to the mounting hole.

[0012] According to some embodiments of the present invention, the end of the column facing the locking groove is provided with an arc surface.

[0013] According to some embodiments of the present invention, the outer surface of the docking part is provided with a plurality of annular mounting grooves, the plurality of mounting grooves are distributed at intervals along the axial direction of the docking part, and the mounting grooves are fitted with annular and elastic conductive sheets.

[0014] According to some embodiments of the present invention, the opening end of the docking cavity is provided with a guide cone surface.

[0015] According to some embodiments of the present invention, the outer surface of the first metal body is provided with a plurality of second telescopic components, and the plurality of second telescopic components are distributed at intervals along the circumference of the first metal body.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a first-view structural schematic diagram of the connecting hardware for the intermediate joint of a deep-water cable according to an embodiment of this utility model; Figure 2 This is a second-view structural schematic diagram of the connecting hardware for the intermediate joint of the deep-water cable according to an embodiment of this utility model; Figure 3 This is a partially enlarged first-view schematic diagram of the first telescopic component according to an embodiment of the present invention; Figure 4 This is a partially enlarged second-view schematic diagram of the first telescopic component according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the docking part having a conductive sheet in an embodiment of this utility model.

[0018] Icon labels: First metal body 100, first fixed cavity 110, docking cavity 120, guide cone surface 121, second metal body 200, second fixed cavity 210, docking part 220, mounting groove 221, conductive sheet 222, locking device 300, locking groove 310, first telescopic component 320, mounting hole 321, elastic mechanism 322, column 323, conical groove 324, limiting plate 325, annular platform 326, second telescopic component 400. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0022] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] Reference Figure 1 and Figure 2 As shown, the connecting hardware of the deep-sea cable intermediate joint according to an embodiment of the present invention includes a first hardware component 100, a second hardware component 200, and a locking device 300.

[0024] The first metal part 100 has a first fixing cavity 110 for connecting the cable conductor at one end and a docking cavity 120 at the other end; the second metal part 200 has a second fixing cavity 210 for connecting the cable conductor at one end and a docking part 220 at the other end, which is inserted into the docking cavity 120; a locking device 300 is disposed between the docking cavity 120 and the docking part 220, and the locking device 300 is used to fix the docking cavity 120 and the docking part 220.

[0025] After processing, the conductor portion of the first cable is inserted into the first fixing cavity 110 of the first metal housing 100, connecting and conducting with the first metal housing 100, for example, by crimping. After processing, the conductor portion of the second cable is inserted into the second fixing cavity 210 of the second metal housing 200, connecting and conducting with the second metal housing 200. Then, the cable with the first metal housing 100 is inserted into a cable connector, and the cable with the second metal housing 200 is then inserted into the cable connector, butt-jointed with the first cable. The two cables are moved until the butt joint 220 is inserted into the butt joint cavity 120, and the butt joint cavity 120 and the butt joint 220 are securely connected by the locking device 300. Under high water pressure and water flow impact conditions, the first metal housing 100 and the second metal housing 200 maintain a stable connection and conduction under the action of the locking device 300.

[0026] It is understood that the locking device 300 includes an annular locking groove 310 and a plurality of first telescopic components 320. The locking groove 310 is disposed on the inner surface of the docking cavity 120 along the circumference of the docking cavity 120, and the plurality of first telescopic components 320 are disposed on the outer surface of the docking portion 220 along the circumference of the docking portion 220. The telescopic direction of the first telescopic components 320 is parallel to the radial direction of the docking portion 220.

[0027] When the docking part 220 is inserted into the docking cavity 120, the first telescopic component 320 retracts towards the center of the docking part 220 due to the action of the inner wall of the docking cavity 120, allowing the docking part 220 to continue moving towards the interior of the docking cavity 120. When the docking part 220 moves to the predetermined position of the docking cavity 120, the first telescopic component 320 is exactly located at the locking groove 310. The locking groove 310 provides a receiving space for the first telescopic component 320, which extends outward from the docking part 220 and into the locking groove 310. Through the engagement of the first telescopic component 320 and the locking groove 310, the docking part 220 and the docking cavity 120 are locked together.

[0028] Reference Figure 3 As shown, it can be understood that the first telescopic component 320 includes a mounting hole 321, an elastic mechanism 322, and a column 323. The mounting hole 321 is provided on the outer surface of the mating portion 220. The column 323 is inserted into the mounting hole 321, and an elastic mechanism 322 is provided between the column 323 and the bottom of the mounting hole 321. The elastic mechanism 322 is configured to drive the column 323 to extend into the locking groove 310.

[0029] On the one hand, the mounting hole 321 can guide the movement of the column 323; on the other hand, the mounting hole 321 can also provide a receiving space for the elastic mechanism 322. Preferably, the elastic mechanism 322 can be a spring. The spring is disposed in the mounting hole 321, with one end of the spring abutting against the bottom of the mounting hole 321 and the other end of the spring connected to the end of the column 323. The spring is configured in a compressed state, so the spring has a tendency to push the column 323 out of the mounting hole 321. When the mating part 220 is inserted into the mating cavity 120 and the column 323 is in the locking groove 310 position, the spring can push the column 323 out, causing the column 323 to engage in the locking groove 310.

[0030] Reference Figure 4 As shown, it can be understood that the circumferential sidewall of the column 323 is provided with a tapered groove 324. When the column 323 extends into the locking groove 310, the tapered groove 324 is located between the locking groove 310 and the mounting hole 321.

[0031] When maintenance is required, the cable connector needs to be disassembled, meaning the connected cable needs to be disconnected, and the first metal part 100 and the second metal part 200 need to be separated. Because the column 323 has a conical groove 324, when the cable connected to the second metal part 200 is disconnected, the column 323 is subjected to a greater external force. The strength at the location of the conical groove 324 is weaker, and the column 323 may break at the location of the conical groove 324. Therefore, the second metal part 200 can be separated from the first metal part 100. It should be understood that although the column 323 has a conical groove 324, making it prone to breakage, the force generated by high water pressure and water flow impact during normal operation of the cable connector is far less than the force generated during disassembly of the cable connector. Therefore, the column 323 will not break under normal circumstances.

[0032] It is understandable that the opening end of the mounting hole 321 is provided with a limiting plate 325, the limiting plate 325 is provided with a through hole, the column 323 passes through the through hole, and the side of the column 323 facing the mounting hole 321 is provided with an annular platform 326, and the elastic mechanism 322 abuts against the annular platform 326.

[0033] The limit plate 325 is used in conjunction with the annular platform 326 on the column 323. Even if the elastic mechanism 322 and the column 323 are not in contact but connected, the elastic mechanism 322 will not completely push the column 323 out of the mounting hole 321 and fail.

[0034] It is understandable that the limiting plate 325 has external threads and the mounting hole 321 has internal threads, and the limiting plate 325 is threadedly connected to the mounting hole 321.

[0035] It is understandable that the end of the column 323 facing the locking groove 310 has an arc surface.

[0036] During the insertion of the docking part 220 into the docking cavity 120, the arc surface of the column 323 contacts the inner wall of the docking cavity 120, which can minimize the friction between the column 323 and the docking cavity 120, making the cable insertion into the cable connector smoother.

[0037] Furthermore, it is understood that the opening end of the docking cavity 120 is provided with a guide cone surface 121.

[0038] The guide cone surface 121 can play a role in positioning and guiding the docking part 220.

[0039] Reference Figure 5 As shown, it can be understood that the outer surface of the docking part 220 is provided with a plurality of annular mounting grooves 221, the plurality of mounting grooves 221 being distributed at intervals along the axial direction of the docking part 220, and the mounting grooves 221 being fitted with annular and elastic conductive sheets 222.

[0040] The conductive sheet 222 is used to improve the conductivity between the mating portion 220 and the mating cavity 120, that is, to improve the conductivity between the second metal body 200 and the first metal body 100. Specifically, the conductive sheet 222 is elastic. Before the mating portion 220 is inserted into the mating cavity 120, the conductive sheet 222 can protrude beyond the surface of the mating portion 220. After the mating portion 220 is inserted into the mating cavity 120, the conductive sheet 222 can maintain constant contact and conduction with the inner wall of the mating cavity 120.

[0041] It is understood that the outer surface of the first metal body 100 is provided with a plurality of second telescopic components 400, and the plurality of second telescopic components 400 are distributed at intervals along the circumference of the first metal body 100.

[0042] The second telescopic component 400 can be designed to have the same structure as the first telescopic component 320. Correspondingly, the same groove can be set inside the cable connector, which is the same as or similar to the locking groove 310. When the first metal part 100 is inserted into the cable connector first, the second telescopic component 400 moves to the groove and can extend into the groove to complete the positioning between the first metal part 100 and the cable connector.

[0043] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A connecting fitting for a deep-water cable intermediate joint, characterized in that, include: The first metal body has a first fixing cavity at one end for connecting the cable conductor, and a docking cavity at the other end. The second metal body has a second fixing cavity at one end for connecting the cable conductor, and a docking part at the other end of the second metal body, which is inserted into the docking cavity. A locking device is disposed between the docking cavity and the docking portion, and the locking device is used to fix the docking cavity and the docking portion.

2. The connecting hardware for a deep-sea cable intermediate joint according to claim 1, characterized in that, The locking device includes an annular locking groove and a plurality of first telescopic components. The locking groove is disposed on the inner surface of the docking cavity along the circumference of the docking cavity, and the plurality of first telescopic components are disposed on the outer surface of the docking portion along the circumference of the docking portion. The telescopic direction of the first telescopic components is parallel to the radial direction of the docking portion.

3. The connecting hardware for a deep-sea cable intermediate joint according to claim 2, characterized in that, The first telescopic component includes a mounting hole, an elastic mechanism, and a column. The mounting hole is disposed on the outer surface of the mating portion, the column is inserted into the mounting hole, and the elastic mechanism is provided between the column and the bottom of the mounting hole. The elastic mechanism is configured to drive the column to extend into the locking groove.

4. The connecting hardware for a deep-sea cable intermediate joint according to claim 3, characterized in that, The circumferential sidewall of the column is provided with a tapered groove. When the column extends into the locking groove, the tapered groove is located between the locking groove and the mounting hole.

5. The connecting hardware for a deep-sea cable intermediate joint according to claim 3, characterized in that, The mounting hole has a limiting plate at its open end, and the limiting plate has a through hole. The column passes through the through hole, and the column has an annular platform on the side facing the mounting hole. The elastic mechanism abuts against the annular platform.

6. The connecting hardware for a deep-sea cable intermediate joint according to claim 5, characterized in that, The limiting plate is provided with external threads, the mounting hole is provided with internal threads, and the limiting plate is threadedly connected to the mounting hole.

7. The connecting hardware for a deep-sea cable intermediate joint according to claim 3, characterized in that, The end of the column facing the locking groove has an arc surface.

8. The connecting hardware for a deep-sea cable intermediate joint according to claim 1, characterized in that, The outer surface of the docking part is provided with a plurality of annular mounting grooves, which are spaced apart along the axial direction of the docking part. The mounting grooves are fitted with annular and elastic conductive sheets.

9. The connecting hardware for a deep-sea cable intermediate joint according to claim 1, characterized in that, The opening end of the docking cavity is provided with a guide cone surface.

10. The connecting hardware for a deep-sea cable intermediate joint according to claim 1, characterized in that, The outer surface of the first metal body is provided with a plurality of second telescopic components, which are distributed at intervals along the circumference of the first metal body.

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