An underwater pluggable electrical connector

Abstract

The utility model relates to the field of electrical appliance technology, and discloses an underwater plug-in electrical connector, including a socket, wherein a connecting piece is fixedly connected inside the socket, three connecting sleeves are fixedly connected inside the socket, and each of the three connecting sleeves is provided with a push spring 1, and each of the three connecting sleeves is slidably connected with a sealing piece, and a plug is slidably connected inside the socket, and three connecting columns are fixedly connected on the right side of the plug, and both the top and bottom ends of the socket are fixedly connected with a connecting seat, and both the top and bottom ends of the plug are fixedly connected with a fixing seat, and the insides of the two fixing seats are rotatably connected with a pulling sleeve. In the utility model, the push spring 3 pushes the limiting ring and the sealing ring, and the sealing ring is engaged with the sealing groove, so as to seal the gap when the socket and the plug are connected, reduce the situation where water penetrates into the connection between the socket and the plug, and further improve the safety of the connector when in use.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical appliances, in particular to an underwater plug-in electrical connector. Background Art

[0002] Underwater pluggable electrical connectors are devices used for electrical connections underwater, and are usually used in marine engineering, underwater robots, underwater detection equipment, etc. This type of connector can achieve reliable electrical connections in underwater environments and has characteristics such as waterproof, corrosion-resistant, and pressure-resistant.

[0003] After searching, the existing Chinese patent announcement number is: CN206558785U, a piston pressure balanced underwater plug-in electrical connector; technical problems to be solved: Most of the existing electrical connectors mentioned in the background technology have no pressure balance and good insulation seal, and the required plug-in force is large, which cannot meet the technical problems required in the deep sea field. The technical solution adopted: a piston pressure balanced underwater plug-in electrical connector, including a plug part and a socket part used in conjunction with it. Advantages: This piston pressure balanced underwater plug-in electrical connector is suitable for the high pressure and high corrosion environment of the deep sea, and can realize multiple plug-in and pull-out operations under power underwater.

[0004] When plugging, the convex head of the conductive part of the plug pin of the plug part first contacts the slot of the piston rod; as the pin goes deeper, the piston rod compresses the piston rod compression spring and moves backward; the seawater in the plug-in cavity formed by the plug and the socket is discharged through the guide long groove on the plug shell. When the front end of the plug shell is against the stop shoulder of the socket shell, the exposed conductive part of the pin contacts the conductive ring, and the engaging protrusion of the claw piece clamps the shoulder groove to prevent the plug and socket from being separated. At this time, the double-layer sealing sleeve at the front end of the socket insulating shell forms a sealing structure with the pin to achieve an insulating seal in the plugged state. In this patent, the engaging protrusion of the claw piece is used to clamp the shoulder groove to prevent the plug and socket from being separated, but only the claw piece is used to clamp the shoulder groove. In the case of repeated plugging and unplugging, the claw piece or the shoulder groove will be worn, making the connector not firmly fixed, causing the connector to be disconnected during vibration or movement, and may also cause electrical failure or short circuit, causing safety accidents, reducing the reliability of the connector. For this reason, an underwater plug-in electrical connector is proposed to solve the above problems. Utility Model Content

[0005] In order to remedy the above deficiencies, the utility model provides an underwater plug-in electrical connector, which aims to improve the prior art that uses a claw piece and a shoulder groove for engagement, which may cause wear of the claw piece or the shoulder groove in the case of repeated plugging and unplugging, making the connector not firmly fixed, causing the connector to be disconnected during vibration or movement, and may also cause electrical failures or short circuits, resulting in safety accidents and reducing the reliability of the connector.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An underwater plug-in electrical connector, comprising a socket, wherein a connecting piece is fixedly connected inside the socket, three connecting sleeves are fixedly connected inside the socket, a push spring 1 is arranged inside the three connecting sleeves, a sealing piece is slidably connected inside the three connecting sleeves, a plug is slidably connected inside the socket, three connecting columns are fixedly connected on the right side of the plug, a connecting seat is fixedly connected at both ends of the top and bottom of the socket, a fixing seat is fixedly connected at both ends of the top and bottom of the plug, a pulling sleeve is rotatably connected inside the two fixing seats, a long rod is slidably connected inside the two pulling sleeves, a pushing piece is fixedly connected on the left side of the two long rods, a push spring 2 is sleeved on the outer side of the two long rods, a card is fixedly connected on the right side of the two long rods, and a sealing component is provided inside the socket;

[0008] As a further description of the above technical solution:

[0009] The sealing assembly comprises a placement groove, a limiting ring, a sealing ring, a plurality of push springs and a sealing groove, wherein the placement groove is arranged inside the left side of the socket, the outer side of the limiting ring is slidably connected to the inside of the placement groove, the outer side of the sealing ring is slidably connected to the inside of the placement groove, the plurality of push springs are arranged inside the placement groove, and the sealing groove is arranged inside the plug;

[0010] As a further description of the above technical solution:

[0011] The left sides of the plurality of push springs 3 are fixedly connected to the right side of the limiting ring, and the right side of the sealing ring is fixedly connected to the left side of the limiting ring;

[0012] As a further description of the above technical solution:

[0013] The outer side of the sealing ring is slidably connected to the inside of the sealing groove, and a plurality of drainage holes are provided inside the sealing groove;

[0014] As a further description of the above technical solution:

[0015] The left sides of the two push springs are respectively fixedly connected to the right sides of the two push sheets, and the right sides of the two push springs are respectively fixedly connected to the insides of the two pulling sleeves;

[0016] As a further description of the above technical solution:

[0017] The outer sides of the two long rods are respectively slidably connected to the insides of the two connecting seats, and the outer sides of the two cards are respectively slidably connected to the insides of the two connecting seats;

[0018] As a further description of the above technical solution:

[0019] The right sides of the two cards are respectively fixedly connected with pull rings, and the interior of the socket is provided with a second drainage hole;

[0020] As a further description of the above technical solution:

[0021] The outer sides of the three connecting posts are respectively slidably connected to the insides of the three connecting sleeves, and the right sides of the three connecting posts are respectively in contact with the left sides of the three sealing sheets.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, when the card is engaged with the connecting seat, the push spring 2 pushes the push sheet and the long rod, thereby driving the card to engage with the connecting seat, making the connection between the socket and the plug more stable, avoiding the connector from being disconnected during vibration or movement, thereby avoiding the occurrence of safety accidents and improving the reliability of use.

[0024] 2. In the utility model, by allowing the push spring three to push the limit ring and the sealing ring, the sealing ring is engaged with the sealing groove, so that the gap when the socket and the plug are connected can be sealed, reducing the situation where water penetrates into the connection between the socket and the plug, and further improving the safety of the connector when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of an underwater pluggable electrical connector proposed by the utility model;

[0026] Figure 2 This is a schematic structural diagram of an underwater pluggable electrical connector proposed by the utility model;

[0027] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0028] Figure 4 This is a structural schematic diagram of a connecting column of an underwater pluggable electrical connector proposed by the utility model;

[0029] Figure 5 This is a structural cross-sectional view of a socket of an underwater pluggable electrical connector proposed by the utility model;

[0030] Figure 6 for Figure 5 Enlarged view of point B in the middle.

[0031] Legend:

[0032] 1. Socket; 2. Connecting piece; 3. Connecting sleeve; 4. Push spring 1; 5. Sealing piece; 6. Plug; 7. Connecting column; 8. Connecting seat; 9. Fixed seat; 10. Pull sleeve; 11. Long rod; 12. Pushing piece; 13. Push spring 2; 14. Card; 15. Pull ring; 16. Receiving groove; 17. Limiting ring; 18. Sealing ring; 19. Push spring 3; 20. Sealing groove; 21. Drain hole 1; 22. Drain hole 2. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Reference Figure 1-Figure 3 and Figure 5-Figure 6 The utility model provides an embodiment: an underwater plug-in electrical connector, including a socket 1, a connecting piece 2 is fixedly connected to the inside of the socket 1, the socket 1 is designed to facilitate the connection with the connecting piece 2, three connecting sleeves 3 are fixedly connected to the inside of the socket 1, the connecting sleeves 3 are designed to facilitate the connection with the connecting column 7, the three connecting sleeves 3 are each provided with a push spring 4, the push spring 4 is designed to facilitate pushing the sealing sheet 5, so that when the connecting column 7 is separated from the connecting sleeve 3, the sealing sheet 5 will also seal the inside of the connecting sleeve 3, the three connecting sleeves 3 are slidably connected to the inside of the sealing sheet 5, and the socket 1 is slidably connected to the inside of the plug 6.

[0035] Three connecting columns 7 are fixedly connected to the right side of the plug 6, and connecting seats 8 are fixedly connected to the top and bottom ends of the socket 1. The design of the connecting seat 8 is to facilitate the engagement of the card 14. Fixed seats 9 are fixedly connected to the top and bottom ends of the plug 6. The design of the fixed seat 9 is to facilitate the connection of the pull sleeve 10. The insides of the two fixed seats 9 are rotatably connected with the pulling sleeve 10. The design of the pulling sleeve 10 is to facilitate the accommodation of the long rod 11, the push sheet 12 and the push spring 13. The insides of the two pull sleeves 10 are slidably connected with the long rod 11. The design of the long rod 11 is to facilitate the connection of the card 14.

[0036] The left sides of the two long rods 11 are fixedly connected with a push piece 12. The design of the push piece 12 is to facilitate the push spring 2 13 to push it, thereby pushing the long rod 11, so that the card 14 is firmly engaged with the connecting seat 8. The outer sides of the two long rods 11 are sleeved with a push spring 2 13. The right sides of the two long rods 11 are fixedly connected with a card 14. A sealing component is provided inside the socket 1. The right sides of the two cards 14 are respectively fixedly connected with a pull ring 15. The design of the pull ring 15 is to facilitate pulling the card 14. A drainage hole 22 is provided inside the socket 1. The design of the drainage hole 22 is to facilitate the drainage of water at the connection between the socket 1 and the plug 6 when the socket 1 and the plug 6 are connected. The outer sides of the three connecting columns 7 are respectively slidably connected to the inside of the three connecting sleeves 3. The right sides of the three connecting columns 7 are respectively in contact with the left sides of the three sealing sheets 5. The design of the connecting column 7 is to facilitate the connection with the connecting sleeve 3.

[0037] The left sides of the two push springs 13 are respectively fixedly connected to the right sides of the two push plates 12, and the right sides of the two push springs 13 are respectively fixedly connected to the inside of the two pulling sleeves 10. The design of the push spring 13 is to push the push plate 12 while being squeezed by the push plate 12, thereby pushing the long rod 11, allowing the long rod 11 to drive the card 14, and then allowing the card 14 to firmly engage with the connecting seat 8. The outer sides of the two long rods 11 are respectively slidably connected to the inside of the two connecting seats 8. The design of the long rod 11 is to facilitate the connection of the card 14. The outer sides of the two cards 14 are respectively slidably connected to the inside of the two connecting seats 8, and the card 14 is designed to engage with the connecting seat 8.

[0038] like Figure 4 and Figure 5 As shown, the sealing assembly includes a seating groove 16, a limiting ring 17, a sealing ring 18, a plurality of push springs 19 and a sealing groove 20. The seating groove 16 is arranged inside the left side of the socket 1. The seating groove 16 is designed to conveniently accommodate the limiting ring 17, the sealing ring 18 and the push spring 19. The outer side of the limiting ring 17 is slidably connected to the inside of the seating groove 16. The limiting ring 17 is designed to facilitate sealing the sealing ring 18. The outer side of the sealing ring 18 is slidably connected to the inside of the seating groove 16. The sealing ring 18 is designed to facilitate cooperation with the sealing groove 20, thereby sealing the gap between the socket 1 and the plug 6.

[0039] A plurality of push springs 3 19 are arranged inside the accommodating groove 16. The design of the push spring 3 19 is to facilitate pushing the limiting ring 17, so as to push the sealing ring 18 to fit firmly with the sealing groove 20. The sealing groove 20 is provided inside the plug 6. The left sides of the plurality of push springs 3 19 are fixedly connected to the right side of the limiting ring 17. The design of the push spring 3 19 is to facilitate pushing the limiting ring 17, so as to push the sealing ring 18 to fit firmly with the sealing groove 20. The right side of the sealing ring 18 is fixedly connected to the left side of the limiting ring 17. The design of the sealing ring 18 is to facilitate cooperating with the sealing groove 20, so as to seal the gap between the socket 1 and the plug 6. The outer side of the sealing ring 18 is slidably connected to the inside of the sealing groove 20. The design of the sealing ring 18 is to facilitate cooperating with the sealing groove 20, so as to seal the gap between the socket 1 and the plug 6. A plurality of drainage holes 21 are provided inside the sealing groove 20. The design of the drainage hole 21 is to facilitate discharging water inside the sealing groove 20 when the plug 6 and the socket 1 are docked.

[0040] Working principle: when it is necessary to connect the plug 6 and the socket 1, align the connecting column 7 with the sealing sheet 5 in the socket 1, then hold the plug 6 and insert the connecting column 7 into the inside of the connecting sleeve 3, and the water in the socket 1 is discharged from the inside of the socket 1 through the second drainage hole 22 while the plug 6 is squeezed. After the connection is completed, pull the pull ring 15 by hand to allow the card 14 to engage with the long rod 11 and the connecting seat 8, and the push spring 2 13 will be squeezed by the long rod 11 with the push sheet 12. When the push spring 2 13 is squeezed, it will also push the push sheet 12, so that the push sheet 12 drives the card 14 to engage with the connecting seat 8 firmly through the long rod 11. When the card 14 is engaged with the connecting seat 8, the push spring 2 13 pushes the push sheet 12 and the long rod 11, thereby driving the card 1 4 is firmly engaged with the connecting seat 8, so that the socket 1 and the plug 6 are connected more firmly, and the connector is prevented from being disconnected during vibration or movement, thereby avoiding the occurrence of safety accidents and improving the reliability of use. When the plug 6 and the socket 1 are connected, the pushing spring three 19 will push the limiting ring 17, thereby pushing the sealing ring 18 to engage with the sealing groove 20. When the sealing ring 18 is engaged with the sealing groove 20, the water in the sealing groove 20 will be discharged from the inside of the sealing groove 20 through the drainage hole 1 21. By allowing the pushing spring three 19 to push the limiting ring 17 and the sealing ring 18, the sealing ring 18 is engaged with the sealing groove 20, so that the gap when the socket 1 and the plug 6 are connected can be sealed, reducing the situation where water penetrates into the connection between the socket 1 and the plug 6, and further improving the safety of the connector when in use.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention 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 make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An underwater pluggable electrical connector, comprising a socket (1), characterized in that: The socket (1) is fixedly connected with a connecting piece (2) inside, and three connecting sleeves (3) are fixedly connected inside. The three connecting sleeves (3) are each provided with a pushing spring (4) inside. The three connecting sleeves (3) are each slidably connected with a sealing piece (5) inside. The socket (1) is slidably connected with a plug (6) inside. The right side of the plug (6) is fixedly connected with three connecting columns (7). The top and bottom ends of the socket (1) are fixedly connected with a connecting seat (8). The plug ( 6), the top and bottom ends of the two fixed seats (9) are fixedly connected, the interiors of the two fixed seats (9) are rotatably connected with pull sleeves (10), the interiors of the two pull sleeves (10) are slidably connected with long rods (11), the left sides of the two long rods (11) are fixedly connected with push sheets (12), the outer sides of the two long rods (11) are sleeved with push springs (13), the right sides of the two long rods (11) are fixedly connected with cards (14), and a sealing component is provided inside the socket (1).

2. An underwater pluggable electrical connector according to claim 1, characterized in that: The sealing assembly comprises a seating groove (16), a limiting ring (17), a sealing ring (18), a plurality of push springs (19) and a sealing groove (20); the seating groove (16) is arranged inside the left side of the socket (1); the outer side of the limiting ring (17) is slidably connected to the inside of the seating groove (16); the outer side of the sealing ring (18) is slidably connected to the inside of the seating groove (16); the plurality of push springs (19) are arranged inside the seating groove (16); and the sealing groove (20) is arranged inside the plug (6).

3. An underwater pluggable electrical connector according to claim 2, characterized in that: The left sides of the plurality of push springs (19) are fixedly connected to the right side of the limiting ring (17), and the right side of the sealing ring (18) is fixedly connected to the left side of the limiting ring (17).

4. The underwater pluggable electrical connector according to claim 2, characterized in that: The outer side of the sealing ring (18) is slidably connected to the inside of the sealing groove (20), and a plurality of drainage holes (21) are provided inside the sealing groove (20).

5. The underwater pluggable electrical connector according to claim 1, characterized in that: The left sides of the two push springs (13) are respectively fixedly connected to the right sides of the two push sheets (12), and the right sides of the two push springs (13) are respectively fixedly connected to the inside of the two pulling sleeves (10).

6. The underwater pluggable electrical connector according to claim 1, characterized in that: The outer sides of the two long rods (11) are respectively slidably connected to the inside of the two connecting seats (8), and the outer sides of the two cards (14) are respectively slidably connected to the inside of the two connecting seats (8).

7. The underwater pluggable electrical connector according to claim 1, characterized in that: The right sides of the two cards (14) are respectively fixedly connected with pull rings (15), and a second drainage hole (22) is provided inside the socket (1).

8. The underwater pluggable electrical connector according to claim 1, characterized in that: The outer sides of the three connecting columns (7) are respectively slidably connected to the insides of the three connecting sleeves (3), and the right sides of the three connecting columns (7) are respectively in contact with the left sides of the three sealing sheets (5).

Images