Sealing connector of longitudinal watertight cable

Abstract

The utility model discloses a sealing connector of a longitudinal watertight cable in the field of watertight cables, which comprises a first cable body, a second cable body arranged on the right side of the first cable body, a butt joint mechanism arranged at the joint of the first cable body and the second cable body, and a sealing mechanism arranged on the outer side of the butt joint mechanism. The sealing connector of the longitudinal watertight cable is composed of a butt joint mechanism and a sealing mechanism, the butt joint mechanism adopts a limiting plug-in structure and a pressurization sealing structure, the limiting plug-in structure can quickly connect cable bodies and achieve a sealing effect, and then the limiting plug-in structure is matched with the pressurization sealing structure to perform tightening operation by using a nut so as to achieve a pressurization sealing effect; the sealing mechanism adopts the wrapping sealing structure and the reinforcing structure, the wrapping sealing structure realizes the sealing wrapping effect, the connection strength of the reinforcing structure can effectively improve the overall strength of the first protection sleeve and the second protection sleeve, and the tensile performance and toughness of the sealing connector for connecting the watertight cable are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of watertight cables, specifically a sealed connector for a longitudinal watertight cable. Background Technology

[0002] Watertight cables are special cables designed specifically for underwater environments. They feature unique structures and materials that effectively prevent moisture from penetrating the cable's interior, ensuring normal operation in harsh environments such as dampness, flooding, or high humidity. Their watertightness is primarily achieved through specialized sealing designs, such as the use of sealants, rubber seals, and multi-layered waterproof sheaths during cable manufacturing to prevent moisture intrusion. Furthermore, watertight cables possess excellent corrosion resistance, aging resistance, and mechanical strength, enabling them to withstand external influences such as water pressure, water flow impact, and the gnawing of marine life. Watertight cables are widely used in submarine cables, underground cables, offshore wind farms, and marine resource exploration, providing reliable protection for the power and signal transmission of underwater equipment.

[0003] Patent application CN202122453066.4 discloses a longitudinally watertight cable, which "includes several coaxially distributed watertight cores and a wrapping tape surrounding all the watertight cores. Each watertight core includes a conductor core, an insulation layer, and a secondary shielding layer. The conductor core is covered by the insulation layer, and the insulation layer is covered by the secondary shielding layer. Several armored tubes are provided in the gap between the watertight cores and the wrapping tape. The gap between the wrapping tape, the armored tubes, and the watertight cores is filled with sealant. The wrapping tape is covered with a sheath. The conductor core is composed of several conductor wires and several fibers braided and twisted together." This design provides better watertightness in the longitudinal direction of the cable, allowing it to be used in high-pressure underwater environments and reducing experimental errors. It is suitable for underwater operations and can withstand various conditions. "Harsh environment" Based on the search of the aforementioned patents and the findings of existing longitudinal watertight cables, it was discovered that due to the complex and changeable seabed environment, the continuous action of water pressure, the frequent activity of marine life, and the occasional contact with the hull of ships, the connection points of the cable may be adversely affected. In particular, when encountering large aquatic organisms such as octopuses and rays or the accidental pulling of ships, the connection points of the cable are more susceptible to mechanical stress. This stress may far exceed the cable's design tolerance. Once such a situation occurs, the cable connection may break or collapse, leading to power transmission interruption, signal loss, or even safety accidents, which will seriously affect the normal operation of marine engineering, seabed observation systems, and marine resource development.

[0004] Based on this, the present invention designs a sealed connector for a longitudinal watertight cable to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a sealed connector for a longitudinal watertight cable to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sealing connector for a longitudinal watertight cable, comprising a first cable body, a second cable body disposed on the right side of the first cable body, a mating mechanism disposed at the connection between the first cable body and the second cable body, and a sealing mechanism disposed on the outer side of the mating mechanism. The mating mechanism includes a butt joint, a connecting head, a first threaded rubber sleeve, a sealing slot, and a first nut. The butt joint is fixedly installed at the right end of the first cable body, and the connecting head is fixedly installed at the left end of the second cable body. The first threaded rubber sleeve is fixedly installed on the outer wall of the butt joint, a sealing slot is disposed on the inner side of the first threaded rubber sleeve, and a first nut is threadedly connected to the outer side of the first threaded rubber sleeve. The sealing mechanism includes a first protective sleeve, a second protective sleeve, a first sealing ring, and a first barrier ring. The first protective sleeve is disposed on the outer side of the butt joint, and the second protective sleeve is disposed on the outer side of the connecting head. The first sealing ring is fixedly installed at the left end of the first protective sleeve, and a first barrier ring is fixedly installed on the first sealing ring. The first sealing ring and the first barrier ring are inserted into the interior of the butt joint.

[0007] Optionally, the docking mechanism further includes a second threaded rubber sleeve and a second nut. The second threaded rubber sleeve is fixedly installed on the outer wall of the joint, and the second nut is threadedly connected to the outer side of the second threaded rubber sleeve.

[0008] Optionally, a sealing ring is fixedly installed at the left end of the second threaded rubber sleeve, and the sealing ring and the sealing slot are in an insertion relationship.

[0009] Optionally, the sealing mechanism further includes a mating groove and a mating concave ring. The right end of the first protective sleeve has a mating groove, and the inside of the mating groove has a mating concave ring. Multiple mating concave rings are distributed from left to right inside the mating groove.

[0010] Optionally, a second sealing ring is fixedly installed on the right end of the second protective sleeve, and a second barrier ring is fixedly installed on the second sealing ring. The second sealing ring and the second barrier ring are inserted into the interior of the joint.

[0011] Optionally, a docking ring is fixedly installed at the left end of the second protective sleeve, and a docking protrusion is fixedly installed on the outer wall of the docking ring. Multiple docking protrusions are distributed on the docking ring from left to right. The docking ring and the docking protrusions are in an insertion relationship with the docking groove. A protective pad ring is fixedly installed on the outer wall of the second protective sleeve.

[0012] Optionally, a first threaded seat is fixedly installed on the left end of the first protective sleeve, and a second threaded seat is fixedly installed on the right end of the second protective sleeve. Both the upper and lower ends of the first and second threaded seats are equipped with screw bodies, and a limit nut is threadedly connected to the outer side of the screw body.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this utility model, a docking mechanism is provided. The docking mechanism adopts a limiting plug-in structure and a pressure sealing structure. The limiting plug-in structure can quickly connect the first cable body and the second cable body and achieve a preliminary sealing effect. Then, in conjunction with the pressure sealing structure, a nut is used to tighten and squeeze, thereby achieving a pressure sealing effect.

[0015] 2. In this utility model, a sealing mechanism is provided. The sealing mechanism adopts a wrapping sealing structure and a reinforcing structure, so that the first protective sleeve and the second protective sleeve completely protect the connection between the first cable body and the second cable body and the docking mechanism inside, achieving the effect of sealing and wrapping. The reinforcing structure can effectively improve the overall strength of the first protective sleeve and the second protective sleeve by means of the connection strength of the first threaded seat, the second threaded seat, the screw body and the limiting nut, and effectively improve the tensile strength and toughness of the watertight cable connected by this sealed connector. Attached Figure Description

[0016] Figure 1 This is a three-dimensional front view structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of this utility model from a frontal view.

[0018] Figure 3 This is a three-dimensional top view of the structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure in plan view of this utility model;

[0020] Figure 5 This is a three-dimensional sectional view of the structure of this utility model. Figure 1 ;

[0021] Figure 6 This is a three-dimensional sectional view of the structure of this utility model. Figure 2 ;

[0022] Figure 7 This is a three-dimensional sectional view of the structure of this utility model. Figure 3 ;

[0023] Figure 8 This utility model Figure 5 A magnified three-dimensional structural diagram of point A in the middle;

[0024] Figure 9 This utility model Figure 5 A magnified three-dimensional structural diagram of point B in the middle.

[0025] In the diagram: 1. First cable body; 2. Second cable body; 3. Connecting mechanism; 301. Connector; 302. Joint; 303. First threaded sleeve; 304. Sealing slot; 305. First nut; 306. Second threaded sleeve; 307. Sealing ring; 308. Second nut; 4. Sealing mechanism; 401. First protective sleeve; 402. Second protective sleeve; 403. First sealing ring; 404. First barrier ring; 405. Connecting groove; 406. Connecting concave ring; 407. Second sealing ring; 408. Second barrier ring; 409. Connecting ring; 410. Connecting convex ring; 411. Protective gasket ring; 412. First threaded seat; 413. Second threaded seat; 414. Screw body; 415. Limiting nut. Detailed Implementation

[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-9 In this embodiment of the present invention, a sealing connector for a longitudinal watertight cable includes a first cable body 1, a second cable body 2 disposed on the right side of the first cable body 1, a mating mechanism 3 disposed at the connection between the first cable body 1 and the second cable body 2, and a sealing mechanism 4 disposed on the outside of the mating mechanism 3. The mating mechanism 3 includes a connector 301, a coupling head 302, a first threaded rubber sleeve 303, a sealing slot 304, and a first nut 305. The connector 301 is fixedly installed at the right end of the first cable body 1, and the coupling head 302 is fixedly installed at the left end of the second cable body 2. A first threaded rubber sleeve 303 is fixedly installed on the outer wall of the connector 301. A sealing slot 304 is provided on the inner side of the first threaded rubber sleeve 303. A first nut 305 is threadedly connected to the outer side of the first threaded rubber sleeve 303. The docking mechanism 3 also includes a second threaded rubber sleeve 306 and a second nut 308. A second threaded rubber sleeve 306 is fixedly installed on the outer wall of the joint 302. A second nut 308 is threadedly connected to the outer side of the second threaded rubber sleeve 306. A sealing ring 307 is fixedly installed at the left end of the second threaded rubber sleeve 306. The sealing ring 307 and the sealing slot 304 are in an insertion relationship.

[0030] See Figure 1 , Figure 4 , Figure 5 , Figure 6 and Figure 7 Initially, the docking mechanism 3 adopts a limiting insertion structure and a pressure sealing structure. During installation, the positions of the connector 301 and the joint 302 are aligned, and the first cable body 1 and the second cable body 2 are brought close to each other, so that the sealing ring 307 on the joint 302 is inserted into the sealing slot 304, achieving the effect of initial limiting insertion. Then, the first nut 305 is tightened, and the first nut 305 is used to squeeze the first threaded rubber sleeve 303, pressing the sealing ring 307 firmly into the sealing slot 304. Then, the second nut 308 is tightened, and the second nut 308 is used to press the sealing ring 307, effectively achieving the effect of pressure sealing.

[0031] Among them, the docking mechanism 3 adopts a limiting plug-in structure and a pressure sealing structure. The limiting plug-in structure can quickly connect the first cable body 1 and the second cable body 2 and achieve a preliminary sealing effect. Then, in conjunction with the pressure sealing structure, a nut is used to tighten and squeeze, thereby achieving a pressure sealing effect.

[0032] The sealing mechanism 4 includes a first protective sleeve 401, a second protective sleeve 402, a first sealing ring 403, and a first barrier ring 404. The first protective sleeve 401 is provided on the outer side of the connector 301, and the second protective sleeve 402 is provided on the outer side of the joint 302. The first sealing ring 403 is fixedly installed on the left end of the first protective sleeve 401, and the first barrier ring 404 is fixedly installed on the first sealing ring 403. The first sealing ring 403 and the first barrier ring 404 are inserted into the interior of the connector 301. The sealing mechanism 4 also includes a mating groove 405 and a mating recessed ring 406. The mating groove 405 is opened at the right end of the first protective sleeve 401, and a mating recessed ring 406 is opened inside the mating groove 405. Multiple mating recessed rings 406 are distributed from left to right inside the mating groove 405. The second sealing ring 407 is fixedly installed at the right end of the second protective sleeve 402. A second barrier ring 408 is fixedly installed on the second sealing ring 407. The second sealing ring 407 and the second barrier ring 408 are inserted into the interior of the joint 302. A mating ring 409 is fixedly installed on the left end of the second protective sleeve 402. A mating protrusion ring 410 is fixedly installed on the outer wall of the mating ring 409. Multiple mating protrusion rings 410 are distributed on the mating ring 409 from left to right. The mating ring 409 and the mating protrusion ring 410 are inserted into the mating groove 405. A protective pad ring 411 is fixedly installed on the outer wall of the second protective sleeve 402. A first threaded seat 412 is fixedly installed on the left end of the first protective sleeve 401. A second threaded seat 413 is fixedly installed on the right end of the second protective sleeve 402. A screw body 414 is installed at both the upper and lower ends of the first threaded seat 412 and the second threaded seat 413. A limit nut 415 is threadedly connected to the outer side of the screw body 414.

[0033] See Figure 1 , Figure 3 , Figure 5 , Figure 8 and Figure 9The sealing mechanism 4 adopts a wrap-around sealing structure and a reinforcement structure. The wrap-around sealing structure consists of a first protective sleeve 401, a second protective sleeve 402, a first sealing ring 403, a first barrier ring 404, a mating groove 405, a mating concave ring 406, a second sealing ring 407, a second barrier ring 408, a mating insert ring 409, a mating convex ring 410, and a protective gasket ring 411. The reinforcement structure consists of a first threaded seat 412, a second threaded seat 413, a screw body 414, and a limiting nut 415. When activated... It is necessary to ensure that the docking mechanism 3 completes the docking operation, and then brings the first protective sleeve 401 and the second protective sleeve 402 closer together, so that the first sealing ring 403 and the first barrier ring 404 at the left end of the first protective sleeve 401 are inserted into the interior of the joint 301, achieving the effect of sealing the left end of the first protective sleeve 401. Similarly, the second sealing ring 407 and the second barrier ring 408 at the right end of the second protective sleeve 402 are inserted into the interior of the joint 302, achieving the effect of sealing the right end of the second protective sleeve 402. After the first protective sleeve 401 and the second protective sleeve 402 approach each other, the mating ring 409 and the mating protrusion 410 will also be inserted into the mating groove 405 to perform a tight mating operation, thereby achieving the effect of sealing the connection between the first protective sleeve 401 and the second protective sleeve 402. This completely seals the first protective sleeve 401 and the second protective sleeve 402, completely protecting the connection between the first cable body 1 and the second cable body 2 and the mating mechanism 3 inside, achieving a sealed wrapping effect. In order to ensure the connection stability of the first protective sleeve 401 and the second protective sleeve 402, a reinforcement structure is required. Tightening the limit nut 415 enhances the stability and sealing of the mating of the first protective sleeve 401 and the second protective sleeve 402. Furthermore, the connection strength of the first threaded seat 412, the second threaded seat 413, the screw body 414, and the limit nut 415 can effectively improve the overall strength of the first protective sleeve 401 and the second protective sleeve 402, effectively improving the tensile strength and toughness of the watertight cable connected by this sealed connector.

[0034] The sealing mechanism 4 adopts a wrapping sealing structure and a reinforcement structure, so that the first protective sleeve 401 and the second protective sleeve 402 completely protect the connection between the first cable body 1 and the second cable body 2 and the docking mechanism 3 inside, achieving the effect of sealing and wrapping. The reinforcement structure can effectively improve the overall strength of the first protective sleeve 401 and the second protective sleeve 402 by means of the connection strength of the first threaded seat 412, the second threaded seat 413, the screw body 414 and the limit nut 415, and effectively improve the tensile strength and toughness of the watertight cable connected by this sealed connector.

[0035] The working principle of this utility model is as follows: In the complex and ever-changing marine environment, to ensure the safety and stability of the cable connection, this sealed connector adopts a docking mechanism 3 and a sealing mechanism 4. First, the first cable body 1 and the second cable body 2 are connected through the docking mechanism 3. During connection, the positions of the mating head 301 and the connecting head 302 correspond, and the initial limiting is achieved through the limiting insertion structure (the sealing ring 307 is inserted into the sealing slot 304). Then, the first nut 305 is tightened, which compresses the first threaded rubber sleeve 303, firmly pressing the sealing ring 307 into the sealing slot 304 to achieve initial pressure sealing. Next, the second nut 308 is tightened to further compress the sealing ring 307, thereby achieving a more reliable pressure sealing effect. Then, the sealing mechanism 4 begins to function. When the first protective sleeve 401 and the second protective sleeve 402 approach each other, the first sealing rubber ring 403 and the first barrier rubber ring 404 are inserted into the mating head 301. The second sealing ring 407 and the second barrier ring 408 are inserted into the joint 302 to achieve a seal at both ends. At this time, the mating ring 409 and the mating protrusion ring 410 are inserted into the mating groove 405 for tight mating, achieving a seal at the connection and ensuring that the first protective sleeve 401 and the second protective sleeve 402 are completely sealed, completely protecting the connection and the mating mechanism 3. In order to enhance the stability and airtightness of the connection, the reinforcement structure (first threaded seat 412, second threaded seat 413, screw body 414 and limit nut 415) plays a role. By tightening the limit nut 415, the mating stability of the first protective sleeve 401 and the second protective sleeve 402 is enhanced, and the overall strength is improved. This effectively improves the tensile strength and toughness of the watertight cable connected by the sealed connector. In summary, the sealed connector of this longitudinal watertight cable achieves stable connection and sealing protection in complex marine environments through precise parts matching, ensuring the continuity and safety of cable transmission.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealing connector of a longitudinal watertight cable, comprising a first cable line body (1), a right side of the first cable line body (1) is provided with a second cable line body (2), characterized in that: The connecting part of the first cable body (1) and the second cable body (2) is provided with a docking mechanism (3), the outer side of the docking mechanism (3) is provided with a sealing mechanism (4), the docking mechanism (3) comprises a docking head (301), an engaging head (302), a first threaded rubber sleeve (303), a sealing slot (304) and a first nut (305), the right end of the first cable body (1) is fixedly installed with the docking head (301), the left end of the second cable body (2) is fixedly installed with the engaging head (302), the outer wall of the docking head (301) is fixedly installed with the first threaded rubber sleeve (303), the inner side of the first threaded rubber sleeve (303) is provided with the sealing slot (304), the outer side of the first threaded rubber sleeve (303) is threadedly connected with the first nut (305), the sealing mechanism (4) comprises a first protective sleeve (401), a second protective sleeve (402), a first sealing rubber ring (403) and a first barrier rubber ring (404), the outer side of the docking head (301) is provided with the first protective sleeve (401), the outer side of the engaging head (302) is provided with the second protective sleeve (402), the left end of the first protective sleeve (401) is fixedly installed with the first sealing rubber ring (403), the first sealing rubber ring (403) is fixedly installed with the first barrier rubber ring (404), and the first sealing rubber ring (403) and the first barrier rubber ring (404) are inserted into the inside of the docking head (301).

2. A sealed connector for a longitudinal watertight cable according to claim 1, characterized in that: The docking mechanism (3) further comprises a second threaded rubber sleeve (306) and a second nut (308), and the outer wall of the engaging head (302) is fixedly installed with the second threaded rubber sleeve (306); the outer side of the second threaded rubber sleeve (306) is threadedly connected with the second nut (308).

3. A sealed connector for a longitudinal watertight cable according to claim 2, characterized in that: The left end of the second threaded rubber sleeve (306) is fixedly installed with a sealing insertion ring (307), and the sealing insertion ring (307) is in an insertion relationship with the sealing slot (304).

4. A sealed connector for a longitudinal watertight cable according to claim 1, characterized in that: The sealing mechanism (4) further comprises a docking groove (405) and a docking concave ring (406), the right end of the first protective sleeve (401) is provided with the docking groove (405), the inside of the docking groove (405) is provided with the docking concave ring (406), and a plurality of docking concave rings (406) are distributed from left to right in the inside of the docking groove (405).

5. A sealed connector for a longitudinal watertight cable according to claim 1, characterized in that: The right end of the second protective sleeve (402) is fixedly installed with a second sealing rubber ring (407), the second sealing rubber ring (407) is fixedly installed with a second barrier rubber ring (408), and the second sealing rubber ring (407) and the second barrier rubber ring (408) are inserted into the inside of the engaging head (302).

6. A sealed connector for a longitudinal watertight cable according to claim 1, characterized in that: The left end of the second protective sleeve (402) is fixedly installed with a butt joint ring (409), the outer wall of the butt joint ring (409) is fixedly installed with a butt joint convex ring (410), a plurality of butt joint convex rings (410) are distributed on the butt joint ring (409) from left to right, the butt joint ring (409) and the butt joint convex ring (410) are in a plug connection relationship with the butt joint groove (405), and the outer wall of the second protective sleeve (402) is fixedly installed with a shielding pad ring (411).

7. A sealed connector for a longitudinal watertight cable according to claim 1, characterized in that: The left end of the first protective sleeve (401) is fixedly installed with a first threaded seat (412), the right end of the second protective sleeve (402) is fixedly installed with a second threaded seat (413), the upper and lower ends of the first threaded seat (412) and the second threaded seat (413) are both installed with a screw body (414), and the outer side of the screw body (414) is in threaded connection with a limiting nut (415).

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