Submarine pressure-resistant self-sealing cable joint box

Abstract

The utility model provides a kind of subsea pressure-resistant self-sealing cable joint box, it is related to subsea power transmission equipment technical field, including the cable of being connected, the bottom of cable surface is provided with lower joint box, the top of lower joint box is provided with the upper joint box of cooperation use, lower joint box and upper joint box are fixedly connected by bolt, the both sides of lower joint box and upper joint box are threadedly connected with resistance seal structure, the surface of resistance seal structure is equipped with the limiting fixed structure for limiting. The utility model is by being provided with cable, lower joint box, upper joint box, resistance seal structure and limiting fixed structure, solve the problem that the port of both sides of existing subsea cable cable joint box in use process due to the impact and corrosion of external seawater can cause the both ends of cable joint box to drop the problem of sealing.

Description

Technical Field

[0001] This utility model relates to the field of submarine power transmission equipment technology, and in particular to a submarine pressure-resistant self-sealing cable junction box. Background Technology

[0002] Submarine cables are conductors wrapped in insulated materials and laid on the seabed to establish telecommunications transmission between countries. Submarine cables are mainly divided into two types: submarine communication cables and submarine power cables. Submarine communication cables are primarily used to transmit telephone and internet signals and are the most important information carriers in modern international communication; while submarine power cables are mainly used for transmitting high-power electrical energy underwater.

[0003] In existing technologies, submarine power or communication uses submarine cables. However, existing submarine cables are affected by external factors or cable end interfaces, resulting in cable connection gaps. Cable connection gaps need to be protected by cable junction boxes. However, during use, the ports of existing submarine cable junction boxes are affected by the impact and corrosion of external seawater, which reduces the sealing performance of the cable junction boxes and shortens their service life. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a submarine pressure-resistant self-sealing cable junction box, which can increase the sealing on both sides of the cable junction box, thereby solving the problem that the sealing performance of the two ends of the cable junction box decreases due to the impact and corrosion of external seawater during use.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a cable junction box with a self-sealing structure, including connected cables, a lower junction box is provided at the bottom of the cable surface, an upper junction box is provided at the top of the lower junction box for cooperation, the lower junction box and the upper junction box are fixedly connected by bolts, and both sides of the lower junction box and the upper junction box are threadedly connected with abutment sealing structure, and the surface of the abutment sealing structure is fitted with a limiting and fixing structure for limiting.

[0006] Furthermore, the abutment sealing structure includes a connecting sleeve with threads on its surface. The surface of the connecting sleeve is connected to the internal threads of the lower connector box and the upper connector box via the threads. A tapered abutment ring is fixedly connected to the opposite side of the connecting sleeve. A first sealing ring for sealing is provided on the opposite side of the tapered abutment ring. An abutment sealing element is provided on the top of the opposite side of the first sealing ring. The surfaces of the abutment sealing element are fixedly connected to the lower connector box and the upper connector box respectively. A limiting and fixing structure is sleeved on the surface of the connecting sleeve.

[0007] Furthermore, the abutting seal includes an upper abutting sealing plate, which is located on one side opposite to the two first sealing rings. The surface of the upper abutting sealing plate is fixedly connected to the inner wall of the upper junction box, and a lower abutting sealing plate is snapped into the bottom of the upper abutting sealing plate. The surface of the lower abutting sealing plate is fixedly connected to the inner wall of the lower junction box.

[0008] Furthermore, a rotating handle sleeve is fixedly connected to the opposite side of the connecting sleeve. The surface of the rotating handle sleeve is provided with anti-slip grooves, and the number of anti-slip grooves is several and they are evenly distributed.

[0009] Furthermore, a second sealing ring is provided on one side of each of the two upper abutment sealing plates. The surface of the second sealing ring is fixedly connected to the inner wall of the lower junction box and the upper junction box, respectively, and the inner ring of the second sealing ring is in close contact with the surface of the cable.

[0010] Furthermore, the limiting and fixing structure includes a collar, which is sleeved on the surface of the connecting sleeve. The inner ring of the collar extends into the interior of the connecting sleeve. A fixing ring is fixedly connected to one side of the collar. The interior of the fixing ring has a groove for use with the lower connector box and the upper connector box. A third sealing ring is fixedly connected to the opposite side of the two collars. The third sealing ring contacts and engages with the surfaces of the lower connector box and the upper connector box.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model ensures the stable installation of the cable joint by setting up a cable, a lower joint box, an upper joint box, a resisting sealing structure, and a limiting fixing structure. The resisting sealing structure with threaded connections on both sides of the lower and upper joint boxes effectively improves the sealing performance of the joint box and prevents external factors such as moisture and dust from damaging the inside of the joint. The limiting fixing structure sleeved on the surface of the resisting sealing structure enhances the stability of the structure.

[0013] 2. This utility model effectively achieves a sealed connection between junction boxes by setting up a resisting sealing structure, a resisting sealing element, a rotating sleeve, an anti-slip groove, and a second sealing ring. The connecting sleeve is connected to the lower and upper junction boxes by threads, ensuring the stability of the connection. The conical resisting ring and the first sealing ring enhance the sealing effect and prevent liquid or gas from entering from the connection. The resisting sealing element includes an upper resisting sealing plate and a lower resisting sealing plate, which are fixedly connected to the upper and lower junction boxes respectively, improving the sealing performance. The rotating sleeve and the anti-slip groove facilitate the user to rotate the connecting sleeve, enabling quick connection and disassembly. The second sealing ring increases the number of sealing layers and also ensures tight contact between the cable and the junction box, preventing leakage at the cable.

[0014] 3. This utility model enhances the stability and sealing between the connecting sleeve and the lower and upper connector boxes by setting a limiting and fixing structure. The collar is fitted onto the surface of the connecting sleeve and extends into its interior, thus fixing the connecting sleeve. The groove inside the fixing ring cooperates with the lower and upper connector boxes to ensure a firm connection of the connection parts. The third sealing ring is fixedly connected to the opposite side of the two collars, which is in close contact with the surfaces of the lower and upper connector boxes, effectively preventing the leakage of liquid or gas and improving the sealing performance of the overall structure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a three-dimensional view of the lower junction box;

[0017] Figure 3 A three-dimensional view of the abutment sealing structure;

[0018] Figure 4 An exploded view of the abutment sealing structure;

[0019] Figure 5 This is a cross-sectional view of the retaining ring.

[0020] In the diagram: 1. Cable; 2. Lower junction box; 3. Upper junction box; 4. Connecting sleeve; 5. Conical abutment ring; 6. First sealing ring; 7. Upper abutment sealing plate; 8. Lower abutment sealing plate; 9. Rotary handle sleeve; 10. Anti-slip groove; 11. Second sealing ring; 12. Collar; 13. Fixing ring; 14. Slot; 15. Third sealing ring. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] A submarine pressure-resistant self-sealing cable junction box includes a connected cable 1. A lower junction box 2 is provided at the bottom of the surface of the cable 1, and an upper junction box 3 is provided at the top of the lower junction box 2 for cooperation. The lower junction box 2 and the upper junction box 3 are fixedly connected by bolts. Both sides of the lower junction box 2 and the upper junction box 3 are threadedly connected with abutment sealing structure. The surface of the abutment sealing structure is fitted with a limiting and fixing structure for limiting.

[0024] Please see Figure 2 , Figure 3 , Figure 4 and Figure 5 , Figure 2 This is a three-dimensional view of the lower junction box; Figure 3 A three-dimensional view of the abutment sealing structure; Figure 4 An exploded view of the abutment sealing structure; Figure 5 This is a cross-sectional view of the retaining ring.

[0025] The abutment sealing structure includes a connecting sleeve 4, the surface of which is threaded. The surface of the connecting sleeve 4 is threaded to the internal threads of the lower connector box 2 and the upper connector box 3. A conical abutment ring 5 is fixedly connected to the opposite side of the connecting sleeve 4. A first sealing ring 6 for sealing is provided on the opposite side of the conical abutment ring 5. An abutment sealing element is provided on the top of the opposite side of the first sealing ring 6. The surface of the abutment sealing element is fixedly connected to the lower connector box 2 and the upper connector box 3 respectively. A limiting and fixing structure is sleeved on the surface of the connecting sleeve 4. The abutment sealing element includes an upper abutment sealing plate 7, which is located on the opposite side of the two first sealing rings 6. The surface of the upper abutment sealing plate 7 is fixedly connected to the inner wall of the upper connector box 3. A lower abutment sealing plate 8 is snapped into the bottom of the upper abutment sealing plate 7. The surface of the lower abutment sealing plate 8 is fixedly connected to the inner wall of the lower connector box 2. A rotating handle sleeve 9 is fixedly connected to the opposite side of the connecting sleeve 4. The surface of the rotating handle sleeve 9 is provided with an anti-slip groove 10. The grooves 10 are numerous and evenly distributed. A second sealing ring 11 is provided on one side of the two upper abutting sealing plates 7 opposite to each other. The surface of the second sealing ring 11 is fixedly connected to the inner wall of the lower connector box 2 and the upper connector box 3 respectively. The inner ring of the second sealing ring 11 is in close contact with the surface of the cable 1, which can effectively achieve a sealed connection between the connector boxes. The connecting sleeve 4 is connected to the lower connector box 2 and the upper connector box 3 by threads, which ensures the stability of the connection. The setting of the conical abutting ring 5 and the first sealing ring 6 enhances the sealing effect and prevents liquid or gas from entering from the connection. The abutting seal includes an upper abutting sealing plate 7 and a lower abutting sealing plate 8, which are fixedly connected to the upper connector box 3 and the lower connector box 2 respectively, which improves the sealing performance. The rotating sleeve 9 and the anti-slip groove 10 facilitate the user to rotate the connecting sleeve 4 to achieve quick connection and disassembly. The second sealing ring 11 increases the number of sealing layers and also ensures close contact between the cable 1 and the connector box, preventing leakage at the cable 1.

[0026] The limiting and fixing structure includes a collar 12, which is fitted onto the surface of the connecting sleeve 4. The inner ring of the collar 12 extends into the interior of the connecting sleeve 4. A fixing ring 13 is fixedly connected to one side of the collar 12. The fixing ring 13 has a groove 14 inside that cooperates with the lower connector box 2 and the upper connector box 3. A third sealing ring 15 is fixedly connected to the opposite side of each of the two collars 12. The third sealing ring 15 contacts and cooperates with the surfaces of the lower connector box 2 and the upper connector box 3, which can enhance the stability and sealing between the connecting sleeve 4 and the lower connector box 2 and the upper connector box 3. The collar 12 is fitted onto the surface of the connecting sleeve 4 and extends into its interior, thereby fixing the connecting sleeve 4. The groove 14 inside the fixing ring 13 cooperates with the lower connector box 2 and the upper connector box 3, ensuring a firm connection of the connection parts. The third sealing ring 15 fixedly connected to the opposite side of each of the two collars 12 is in close contact with the surfaces of the lower connector box 2 and the upper connector box 3, effectively preventing the leakage of liquid or gas and improving the sealing performance of the overall structure.

[0027] Working Principle: The lower junction box 2 and the upper junction box 3 are fixedly connected by bolts to form a basic connection structure. On both sides of these two junction boxes, a retaining seal structure is threadedly connected. The core components of the retaining seal structure include a connecting sleeve 4, a conical retaining ring 5, and a first sealing ring 6. The connecting sleeve 4 is tightly connected to the lower junction box 2 and the upper junction box 3 via threads, ensuring the stability of the connection. The conical retaining ring 5 and the first sealing ring 6 enhance the sealing effect, effectively preventing liquid or gas from entering from the connection point. The retaining seal consists of an upper retaining sealing plate 7 and a lower retaining sealing plate 8, which are fixedly connected to the inner walls of the upper junction box 3 and the lower junction box 2, respectively, improving the sealing performance. The second sealing ring 11 not only increases the number of sealing layers but also ensures tight contact between the cable 1 and the junction box. To effectively prevent leakage at cable 1, and to further enhance the stability and sealing of the connection, a limiting and fixing structure is fitted onto the surface of the connecting sleeve 4. The limiting and fixing structure includes a collar 12 and a fixing ring 13. The collar 12 is fitted onto the surface of the connecting sleeve 4 and extends into its interior to fix the connecting sleeve 4. The groove 14 inside the fixing ring 13 works in conjunction with the lower connector box 2 and the upper connector box 3 to ensure a firm connection at the connection point. The third sealing ring 15, which is fixedly connected to the opposite side of the two collars 12, is in close contact with the surfaces of the lower connector box 2 and the upper connector box 3, effectively preventing leakage of liquid or gas and improving the sealing performance of the overall structure. The design of the rotating handle sleeve 9 and the anti-slip groove 10 makes it easy for the user to rotate the connecting sleeve 4, enabling quick connection and disassembly and improving the convenience of operation.

Claims

1. A submarine pressure-resistant self-sealing cable joint box, characterized in that: The cable (1) is connected to the ground. A lower connector box (2) is provided at the bottom of the surface of the cable (1). An upper connector box (3) is provided at the top of the lower connector box (2) for use. The lower connector box (2) and the upper connector box (3) are fixedly connected by bolts. Both sides of the lower connector box (2) and the upper connector box (3) are threaded with abutment sealing structure. The surface of the abutment sealing structure is fitted with a limiting fixing structure for limiting.

2. The submarine pressure-resistant self-sealing cable joint box according to claim 1, characterized in that: The abutment sealing structure includes a connecting sleeve (4), the surface of which is threaded, and the surface of the connecting sleeve (4) is connected to the internal threads of the lower connector box (2) and the upper connector box (3) through the thread. A conical abutment ring (5) is fixedly connected to the opposite side of the connecting sleeve (4), and a first sealing ring (6) for sealing is provided on the opposite side of the conical abutment ring (5). An abutment sealing element is provided on the top of the opposite side of the first sealing ring (6), and the surface of the abutment sealing element is fixedly connected to the lower connector box (2) and the upper connector box (3) respectively. A limiting and fixing structure is sleeved on the surface of the connecting sleeve (4).

3. The submarine pressure-resistant self-sealing cable joint box according to claim 2, characterized in that: The abutting seal includes an upper abutting sealing plate (7), which is located on one side opposite to the two first sealing rings (6). The surface of the upper abutting sealing plate (7) is fixedly connected to the inner wall of the upper connector box (3). The bottom of the upper abutting sealing plate (7) is snapped with a lower abutting sealing plate (8), and the surface of the lower abutting sealing plate (8) is fixedly connected to the inner wall of the lower connector box (2).

4. The submarine pressure-resistant self-sealing cable joint box according to claim 2, characterized in that: The connecting sleeve (4) is fixedly connected to a rotating handle sleeve (9) on the opposite side, and the surface of the rotating handle sleeve (9) is provided with an anti-slip groove (10).

5. A submarine pressure-resistant self-sealing cable joint box according to claim 3, characterized in that: A second sealing ring (11) is provided on one side opposite to the two upper abutting sealing plates (7). The surface of the second sealing ring (11) is fixedly connected to the inner wall of the lower connector box (2) and the upper connector box (3) respectively. The inner ring of the second sealing ring (11) is in close contact with the surface of the cable (1).

6. A submarine pressure-resistant self-sealing cable joint box according to claim 2, characterized in that: The limiting and fixing structure includes a collar (12), which is sleeved on the surface of the connecting sleeve (4). The inner ring of the collar (12) extends into the interior of the connecting sleeve (4). A fixing ring (13) is fixedly connected to one side of the collar (12). A slot (14) is opened inside the fixing ring (13) to cooperate with the lower connector box (2) and the upper connector box (3). A third sealing ring (15) is fixedly connected to the opposite side of the two collars (12). The third sealing ring (15) contacts and cooperates with the surfaces of the lower connector box (2) and the upper connector box (3).

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