Watertight connector

Abstract

The utility model provides a watertight connector which comprises a male plug and a female plug which are fixedly connected in a sealed plugging manner. According to the utility model, through the overall arrangement, after the male plug and the female plug are in butt joint, multiple sealing effects can be achieved, so that when one sealing structure loses the sealing effect, the remaining sealing structures can still ensure the sealing performance of the butt joint of the male plug and the female plug, and the whole plug is safer and more reliable in the using process.

Description

Technical Field

[0001] This utility model relates to the field of watertight connectors, and in particular to a watertight connector. Background Technology

[0002] Watertight connectors, also known as watertight plugs, are a special type of connector with waterproof features.

[0003] Watertight connectors, while ensuring electrical performance, achieve a sealed connection through special structural design and material selection, thus providing waterproof and moisture-proof effects. They are mainly used in underwater equipment such as underwater robots, sensors, sonar, and ships to ensure the stability of data and energy transmission.

[0004] However, existing watertight connectors have a relatively simple sealing method. If the sealing structure breaks accidentally, water will enter, posing a certain safety hazard.

[0005] Therefore, it is essential to invent a watertight connector. Utility Model Content

[0006] To solve the above-mentioned technical problems, the present invention provides a watertight connector with the following technical solution: a watertight connector, including a male plug and a female plug, wherein: the male plug and the female plug are sealed and fixedly connected by plugging and unplugging.

[0007] Preferably, the male plug includes a pin sealing shell, pins, and a male nut sleeve. The required number of pins are sealed and fixedly installed inside the pin sealing shell by a retainer. The head of the pin protrudes from the pin sealing shell. The male nut sleeve is rotatably sleeved on the outside of the pin sealing shell.

[0008] Preferably, the female plug includes a socket sealing shell, a socket, and a female nut sleeve. The socket sealing shell has a socket corresponding to the pin sealed and fixed inside by a retainer. The head end of the socket protrudes from the socket sealing shell. The socket is sealed and plugged into the corresponding pin. The female nut sleeve is rotatably sleeved on the outside of the socket sealing shell. The female nut sleeve and the male nut sleeve are threadedly sealed together.

[0009] Preferably, the outer ends of the male nut sleeve and the female nut sleeve are each provided with an integrally formed constriction.

[0010] Preferably, the male nut sleeve is threadedly connected to the pin sealing housing via a constriction.

[0011] Preferably, the female nut sleeve is threadedly connected to the insert sealing shell via a constriction.

[0012] Preferably, each of the outer circumferential surfaces of the pin sealing shell and the sleeve sealing shell is provided with an integral positioning ring. When the female nut sleeve and the male nut sleeve are connected, the positioning ring limits the female nut sleeve and the male nut sleeve to prevent them from falling off from the corresponding pin sealing shell and sleeve sealing shell. After the female nut sleeve and the male nut sleeve are connected, the positioning ring makes a sealing and pressing contact with the corresponding opening on the female nut sleeve and the male nut sleeve. The diameter of the positioning ring is larger than the inner diameter of the opening.

[0013] Preferably, the positioning ring on the pin sealing housing is located on the side closer to the pin;

[0014] Preferably, the positioning ring on the insert sealing shell is located on the side closer to the insert.

[0015] Preferably, a conical cavity is formed inside the other end of the pin, and an integral annular positioning edge is provided on the upper outer side of the pin. The pin is fixedly engaged with the retainer inside the pin sealing shell through the annular positioning edge.

[0016] Preferably, the top end of the insert has an internal cavity corresponding to the insert pin, the bottom end of the insert has a conical cavity, and the upper part of the insert has an integral annular positioning edge. The insert is fixedly engaged with the retainer inside the sealing shell of the insert via the annular positioning edge.

[0017] Preferably, the retainer includes a bracket and a sealing fixing piece, which are fixedly installed inside the corresponding pin sealing housing and the corresponding tube sealing housing. The sealing fixing piece is at the top of the bracket, and the head ends of the pin and the tube both extend out from the corresponding sealing fixing piece. The pin and the tube are respectively engaged with the bracket by an annular positioning edge and an annular positioning edge two, which are both located between the corresponding bracket and the sealing fixing piece.

[0018] Preferably, the bracket and the sealing fixing plate each have a central hole through the center, and each of the bracket and the sealing fixing plate has mounting holes evenly distributed through the surface. The bracket and the sealing fixing plate are fixedly inserted into the interior of the corresponding pin sealing shell and the plug sealing shell through the mounting holes.

[0019] Preferably, the bracket has several positioning notches evenly distributed throughout its circumference, and the main body parts of the pin and the tube are respectively installed in the corresponding positioning notches via annular positioning edges and annular positioning edges II.

[0020] Preferably, the surface of the sealing and fixing plate is provided with a plurality of fixing holes that are evenly distributed through it and correspond to the positioning notch, and the head ends of the pin and the insert protrude from the corresponding fixing holes.

[0021] Preferably, a plurality of connecting structures are evenly distributed and fixedly installed inside the pin sealing shell and the cylinder sealing shell. The connecting structure includes a positioning platform and a positioning post. The positioning platform is fixedly installed on the inner surface of the corresponding pin sealing shell and cylinder sealing shell. A positioning post is fixedly installed on the upper surface of each positioning platform. The positioning post is inserted into the corresponding mounting hole.

[0022] Preferably, a sealing ring is provided on the surface where the positioning ring and the closing end contact.

[0023] Compared with the prior art, the advantages of this utility model are:

[0024] The overall design of this utility model provides multiple sealing effects after the male and female plugs are connected. This means that even if one sealing structure loses its sealing effect, the remaining sealing structures can still ensure the sealing of the male and female plugs, making the whole system safer and more reliable during use. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0026] Figure 2 This is an exploded structural diagram of the present invention.

[0027] Figure 3 This is a partial cross-sectional view of the pin sealing shell and male nut sleeve of this utility model.

[0028] Figure 4 This is a schematic diagram of the bracket and sealing fixing plate structure of this utility model.

[0029] Figure 5 This is a schematic diagram of the pin structure of this utility model.

[0030] Figure 6 This is a schematic diagram of the insert structure of this utility model.

[0031] Figure 7 This is a partially enlarged structural diagram of point A of this utility model.

[0032] In the picture:

[0033] 1. Pin sealing housing; 2. Sleeve sealing housing; 3. Positioning ring; 4. Bracket; 5. Sealing fixing plate; 6. Pin; 61. Conical cavity; 62. Annular positioning edge; 7. Sleeve; 71. Cavity; 72. Second conical cavity; 73. Second Annular positioning edge; 8. Male nut sleeve; 9. Female nut sleeve; 10. Positioning platform; 11. Positioning post; 12. Sealing ring; 13. Center hole; 14. Fixing hole; 15. Positioning notch; 16. Mounting hole; 17. Closure. Detailed Implementation

[0034] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0035] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for 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 the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0036] The present invention will be further described below with reference to the accompanying drawings: Example

[0037] Reference Figure 1-7 A watertight connector includes a male plug and a female plug, wherein the male plug and the female plug are sealed and fixedly connected by plugging and unplugging.

[0038] In this embodiment, the male plug includes a pin sealing shell 1, pins 6 and a male nut sleeve 8. The required number of pins 6 are sealed and fixed inside the pin sealing shell 1 by a retainer so that the pins 6 can be sealed and protected by the pin sealing shell 1. The head of the pin 6 protrudes from the pin sealing shell 1. The male nut sleeve 8 is rotatably sleeved on the outside of the pin sealing shell 1.

[0039] In this embodiment, the female plug includes a socket sealing shell 2, a socket 7, and a female nut sleeve 9. The socket 7 corresponding to the pin 6 is sealed and fixedly installed inside the socket sealing shell 2 by a retainer, so that the socket sealing shell 2 and the socket 7 can be sealed and protected. The head end of the socket 7 protrudes from the socket sealing shell 2. The socket 7 and the corresponding pin 6 are connected in a sealed plugging and unplugging connection. The female nut sleeve 9 is rotatably sleeved on the outside of the socket sealing shell 2. The female nut sleeve 9 and the male nut sleeve 8 are connected in a threaded seal. The setting of the female nut sleeve 9 and the male nut sleeve 8 not only ensures the stability of the male plug and female plug after they are connected and prevents the male plug and female plug from accidentally disengaging, but also improves the sealing performance of the connection between the male plug and female plug.

[0040] In this embodiment, the inner part of the outer end of the male nut sleeve 8 and the female nut sleeve 9 is provided with an integral constriction 17. The male nut sleeve 8 is threadedly connected to the pin sealing shell 1 through the constriction 17, and the female nut sleeve 9 is threadedly connected to the tube sealing shell 2 through the constriction 17. By setting the constriction 17, the sealing performance between the male nut sleeve 8 and the female nut sleeve 9 and the pin sealing shell 1 and the tube sealing shell 2 can be improved.

[0041] In this embodiment, an integral positioning ring 3 is provided on the outer circumferential surface of the pin sealing shell 1 and the insert sealing shell 2. By setting the positioning ring 3, when the female nut sleeve 9 and the male nut sleeve 8 are connected, the female nut sleeve 9 and the male nut sleeve 8 can be limited to prevent them from falling off from the corresponding pin sealing shell 1 and insert sealing shell 2. After the female nut sleeve 9 and the male nut sleeve 8 are connected, the positioning ring 3 makes a sealing and pressing contact with the corresponding constriction 17 on the female nut sleeve 9 and the male nut sleeve 8. The diameter of the positioning ring 3 is larger than the inner diameter of the constriction 17 so as to ensure the sealing between the female nut sleeve 9 and the male nut sleeve 8 after they are connected.

[0042] The positioning ring 3 on the pin sealing housing 1 is located on the side closer to the pin 6;

[0043] The positioning ring 3 on the sealing outer shell 2 of the insert is located on the side closer to the insert 7.

[0044] In this embodiment, a conical cavity 61 is formed inside the other end of the pin 6, and an integral annular positioning edge 62 is provided on the upper outer side of the pin 6. By setting the annular positioning edge 62, the pin 6 can be positioned when it is installed. The pin 6 is fixedly engaged with the retainer inside the pin sealing shell 1 by the annular positioning edge 62.

[0045] In this embodiment, the top end of the insert 7 has an insert cavity 71 corresponding to the insert pin 6, the bottom end of the insert 7 has a conical cavity 72, and the upper part of the insert 7 has an integral annular positioning edge 73. The annular positioning edge 73 can be used to position the insert 7 when it is installed. The insert 7 is fixedly engaged with the retainer inside the insert sealing shell 2 by the annular positioning edge 73.

[0046] In this embodiment, the retainer includes a bracket 4 and a sealing fixing piece 5. The bracket 4 and the sealing fixing piece 5 can support and position the corresponding pins 6 and tubes 7, ensuring the stability and strength of the pins 6 and tubes 7. The bracket 4 and the sealing fixing piece 5 are fixedly installed inside the corresponding pin sealing shell 1 and tube sealing shell 2. The sealing fixing piece 5 is sealed and fixedly connected to the corresponding pin sealing shell 1 and tube sealing shell 2. The sealing fixing piece 5 is at the top of the bracket 4. The heads of the pins 6 and tubes 7 extend out from the corresponding sealing fixing piece 5 so that the pins 6 and tubes 7 can be inserted and removed. The pins 6 and tubes 7 are respectively engaged with the bracket 4 through the annular positioning edge 62 and the second annular positioning edge 73. The annular positioning edge 62 and the second annular positioning edge 73 are both located between the corresponding bracket 4 and the sealing fixing piece 5.

[0047] In this embodiment, a central hole 13 is provided at the center of the bracket 4 and the sealing fixing piece 5, and mounting holes 16 are evenly distributed on the surface of the bracket 4 and the sealing fixing piece 5, so that the pin 6 and the tube 7 can be positioned and connected to the inside of the pin sealing shell 1 and the tube sealing shell 2 through the mounting holes 16, and the bracket 4 and the sealing fixing piece 5 can be fixedly inserted into the inside of the corresponding pin sealing shell 1 and the tube sealing shell 2 through the mounting holes 16.

[0048] In this embodiment, the bracket 4 has several positioning notches 15 evenly distributed throughout its circumference to provide the necessary installation space for the corresponding pins 6 and tubes 7. The main body parts of the pins 6 and tubes 7 are respectively installed in the corresponding positioning notches 15 through the annular positioning edge 62 and the annular positioning edge 73.

[0049] In this embodiment, the surface of the sealing and fixing plate 5 is evenly provided with a plurality of fixing holes 14 corresponding to the positioning notch 15, so as to position the corresponding pin 6 and the insert 7 through the fixing holes 14, and the head ends of the pin 6 and the insert 7 extend out from the corresponding fixing holes 14.

[0050] In this embodiment, several connecting structures are evenly distributed and fixedly installed inside the pin sealing housing 1 and the sleeve sealing housing 2. The connecting structures enable quick installation between the retainer and the corresponding pin sealing housing 1 and sleeve sealing housing 2. The connecting structures include positioning platforms 10 and positioning posts 11. The positioning platforms 10 are fixedly installed on the inner surfaces of the corresponding pin sealing housing 1 and sleeve sealing housing 2. Each positioning platform 10 has a positioning post 11 fixedly installed on its upper surface. The positioning post 11 is inserted into the corresponding mounting hole 16.

[0051] In this embodiment, sealing rings 12 of different diameters are provided on the surfaces of the positioning ring 3 and the closing end 17 that are in contact with each other. With the setting of sealing rings 12, after the female nut sleeve 9 and the male nut sleeve 8 are connected, the positioning ring 3 and the closing end 17 will come into contact, thereby sealing the positioning ring 3 and the closing end 17 through the sealing rings 12, improving the overall sealing performance.

[0052] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A watertight connector, characterized in that: It includes a male plug and a female plug, wherein the male plug and the female plug are sealed and fixedly connected by a plug-in interface; The male plug includes a pin sealing shell (1), a pin (6) and a male nut sleeve (8). The required number of pins (6) are sealed and fixed inside the pin sealing shell (1) by a retainer. The head of the pin (6) protrudes from the pin sealing shell (1). The male nut sleeve (8) is rotatably sleeved on the outside of the pin sealing shell (1). The female plug includes a socket sealing shell (2), a socket (7) and a female nut sleeve (9). The socket sealing shell (2) is sealed and fixedly installed inside by a retainer, with the socket (7) corresponding to the pin (6) being exposed from the socket sealing shell (2). The socket (7) is sealed and plugged into the corresponding pin (6). The female nut sleeve (9) is rotatably sleeved on the outside of the socket sealing shell (2). The female nut sleeve (9) is threadedly sealed to the male nut sleeve (8). The male nut sleeve (8) and the female nut sleeve (9) each have an integrated taper (17) inside their outer ends. The male nut sleeve (8) is threadedly connected to the pin sealing shell (1) through a constriction (17); The female nut sleeve (9) is threadedly connected to the insert sealing shell (2) through the constriction (17); The outer circumferential surfaces of the pin sealing shell (1) and the insert sealing shell (2) are each provided with an integrated positioning ring (3). After the positioning ring (3) is connected to the female nut sleeve (9) and the male nut sleeve (8), it is in sealed and squeezed contact with the corresponding opening (17) on the female nut sleeve (9) and the male nut sleeve (8).

2. The watertight connector as described in claim 1, characterized in that: A conical cavity (61) is opened inside the other end of the pin (6), and an integral annular positioning edge (62) is provided on the upper outer side of the pin (6). The pin (6) is fixedly engaged with the retainer inside the pin sealing shell (1) through the annular positioning edge (62).

3. A watertight connector as described in claim 2, characterized in that: The top end of the insert (7) has an insert cavity (71) corresponding to the insert pin (6), and the bottom end of the insert (7) has a conical cavity (72). The upper part of the insert (7) is provided with an integrated annular positioning edge (73). The insert (7) is fixedly engaged with the retainer inside the insert sealing shell (2) by the annular positioning edge (73).

4. A watertight connector as described in claim 3, characterized in that: The retainer includes a bracket (4) and a sealing plate (5). The bracket (4) and the sealing plate (5) are fixedly installed inside the corresponding pin sealing shell (1) and the tube sealing shell (2). The sealing plate (5) is at the top of the bracket (4). The heads of the pin (6) and the tube (7) extend out from the corresponding sealing plate (5). The pin (6) and the tube (7) are respectively engaged with the bracket (4) by the annular positioning edge (62) and the second annular positioning edge (73). The annular positioning edge (62) and the second annular positioning edge (73) are both located between the corresponding bracket (4) and the sealing plate (5).

5. A watertight connector as described in claim 4, characterized in that: The bracket (4) and the sealing fixing piece (5) each have a central hole (13) through the center. The bracket (4) and the sealing fixing piece (5) each have mounting holes (16) evenly distributed through the surface. The bracket (4) and the sealing fixing piece (5) are fixedly inserted into the interior of the corresponding pin sealing shell (1) and the plug sealing shell (2) through the mounting holes (16).

6. A watertight connector as described in claim 5, characterized in that: The bracket (4) has several positioning notches (15) evenly distributed throughout its circumference. The main body parts of the pin (6) and the tube (7) are respectively installed in the corresponding positioning notches (15) via the annular positioning edge (62) and the annular positioning edge (73).

7. A watertight connector as described in claim 5, characterized in that: The surface of the sealing and fixing plate (5) is evenly distributed with a number of fixing holes (14) corresponding to the positioning notch (15), and the head ends of the pin (6) and the tube (7) extend out from the corresponding fixing holes (14).

8. A watertight connector as described in claim 5, characterized in that: The interior of the pin sealing shell (1) and the cylinder sealing shell (2) are each uniformly and fixedly installed with several connecting structures; The connection structure includes a positioning platform (10) and a positioning post (11). The positioning platform (10) is fixedly installed on the inner surface of the corresponding pin sealing shell (1) and the insert sealing shell (2). Each positioning platform (10) has a positioning post (11) fixedly installed on its upper surface. The positioning post (11) is inserted into the corresponding mounting hole (16).

9. A watertight connector as described in claim 1, characterized in that: A sealing ring (12) is provided on the surface where the positioning ring (3) and the closing end (17) are in contact.

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