CN217281389U

CN217281389U - Underwater airtight connector

Info

Publication number: CN217281389U
Application number: CN202220415130.1U
Authority: CN
Inventors: 孟凡璐; 梅迪; 柴兴; 张永刚
Original assignee: AVIC Shenyang Xinghua Aero Electrical Appliance Co Ltd
Current assignee: AVIC Shenyang Xinghua Aero Electrical Appliance Co Ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-08-23
Anticipated expiration: 2032-02-28

Abstract

The utility model provides an underwater airtight connector, a socket, which comprises a socket shell and a first O-shaped ring, wherein the socket shell is of a sleeve-shaped structure, the inner wall of the socket shell is provided with a groove extending along the circumferential direction, and the first O-shaped ring is arranged in the groove; the plug is in plug-in fit with the socket and comprises a plug shell, a tail accessory and a wire sealing body, the plug shell and the socket shell are in socket fit at the groove, the tail accessory is arranged at one end, away from the socket, of the plug shell, the wire sealing body is arranged at the joint of the plug shell and the tail accessory, a first bulge is arranged on the wire sealing body, and the first bulge is connected with the inner wall of the plug shell in a clamping mode. The purposes of protecting the cable, preventing insulation from descending, preventing water and short circuit are achieved by axially and radially sealing the underwater sealed connector.

Description

Underwater closed connector

Technical Field

The specification relates to the technical field of connectors, in particular to an underwater airtight connector.

Background

The conventional underwater closed connector is complex in structure, more in components and assemblies, longer in production and assembly period, not convenient and reliable enough on engine projects with large usage amount and shorter purchase period, and high in cost.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiments of the present disclosure provide an underwater hermetic connector, which achieves the purposes of protecting a cable, preventing insulation from decreasing, and preventing water and short circuit by axially and radially sealing the underwater hermetic connector.

The embodiment of the specification provides the following technical scheme:

an underwater hermetic connector fixed on a mounting plate, comprising:

the socket comprises a socket shell and a first O-shaped ring, wherein the socket shell is of a sleeve-shaped structure, a groove extending along the circumferential direction is formed in the inner wall of the socket shell, and the first O-shaped ring is arranged in the groove;

the plug is in plug-in fit with the socket, the plug comprises a plug shell, a tail accessory and a wire sealing body, the plug shell and the socket shell are in sleeve fit at a groove, the tail accessory is arranged at one end, away from the socket, of the plug shell, the wire sealing body is arranged at the joint of the plug shell and the tail accessory, a first bulge is arranged on the wire sealing body, and the first bulge is connected with the inner wall of the plug shell in a clamping mode.

Further, the socket further comprises a second protrusion, a second O-shaped ring and a compression nut, the second protrusion is arranged on the periphery of the socket shell, a second groove arranged towards the mounting plate is formed in the second protrusion, the second O-shaped ring is arranged in the second groove, and the compression nut is sleeved outside the socket shell and can compress the mounting plate and the second O-shaped ring.

Furthermore, the plug further comprises a sealing gasket and a connecting nut, the connecting nut is sleeved outside a connecting portion of the socket and the plug, a radial gap is formed between the connecting nut and the plug shell, and the sealing gasket is arranged in the radial gap.

Further, the plug still includes the ring clamp spring that circles, and the ring clamp spring that circles sets up in the periphery of plug housing, and a side end face butt that socket was kept away from to ring clamp spring one end and connecting nut.

Further, the plug still includes insulator subassembly and a plurality of jack, and the insulator subassembly sets up in the one side of orientation socket and with the one side butt of the body of sealing wire towards the socket, and a plurality of pieces of jack intervals set up in the insulator subassembly.

Furthermore, the socket also comprises a plurality of contact pins which are arranged in the plug shell at intervals and can be in plug-in fit with the jacks.

Further, the socket also comprises an insulator, the insulator is filled in the inner cavity of the socket shell, and the pins penetrate through the insulator to extend to the outside of the socket shell.

Further, the socket still includes the jump ring, and the jump ring setting is at the inner wall of socket casing, and the jump ring can keep away from one side butt of plug with the insulator.

Furthermore, a glue solution layer is arranged inside the socket shell and arranged on one side, far away from the plug, of the insulator.

Further, the inner wall of the socket shell further comprises at least one shell inner groove, and the glue solution layer can be clamped with the shell inner groove in a matched mode.

Further, the glue solution layer is one or a combination of several of epoxy glue, transparent silica gel, PU glue and PVC glue.

Compared with the prior art, the embodiment of the specification adopts at least one technical scheme which can achieve the beneficial effects that at least:

the underwater sealed connector adopts a bayonet connection structure, a sealing gasket is used for replacing a corrugated spring, axial locking of the connector is realized by compressing the sealing gasket to generate axial force, and axial sealing is generated at the same time. The axial sealing brought by the axial extrusion of the wire sealing body is added with the double radial sealing brought by the two O-shaped rings. By quadruple sealing, the protection grade of the plug seat after the underwater sealed connector is butted reaches the IP67 protection safety level.

Optimize socket inner structure, reduce component part number, adopt the epoxy to glue and carry out the gas tightness of embedment assurance product, reduce the complexity of assembly. Meanwhile, the contact pin is in local interference fit with the insulator and the shell, so that the filling and sealing difficulty is reduced, and the efficiency is improved. The overall external volume and mass of the product are effectively reduced, the production and assembly period is shortened, and the cost is further reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is an overall appearance diagram of the present invention;

fig. 2 is a partial cross-sectional view of the socket of the present invention;

FIG. 3 is a partial cross-sectional view of the plug of the present invention;

fig. 4 is a cross-sectional view of the insulator of the socket of the present invention;

fig. 5 is a cross-sectional view of a pin of the socket of the present invention;

figure 6 is a cross-sectional view of the rear attachment of the plug of the present invention.

Description of the reference numerals: 1. a socket; 101. a socket housing; 102. inserting a pin; 103. a first O-ring; 104. an insulator; 105. a compression nut; 106. a second O-ring; 107. a clamp spring; 108. a groove inside the shell; 109. a glue layer; 2. a plug; 201. a connecting nut; 202. a plug housing; 203. a gasket; 204. circling the clamp spring; 205. an insulator assembly; 206. sealing the wire body; 207. a tail attachment; 301. a tail nut; 302. a tail clamp spring; 303. bending the pipe; 304. directly clamping a nut; 305. a rubber tube; 306. a screw; 307. a platen assembly.

Detailed Description

The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The present application is capable of other and different embodiments and its several details are capable of modifications and/or changes in various respects, all without departing from the spirit of the present application. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present application, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number and aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present application, and the drawings only show the components related to the present application rather than the number, shape and size of the components in actual implementation, and the type, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.

The technology provided by the embodiments of the present application is explained with additional specificity and detail in the following description, taken in conjunction with the accompanying drawings, where the same is illustrated to provide a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.

Referring to fig. 1, the underwater hermetic connector of the present embodiment is mainly composed of two components, namely, a socket 1 and a plug 2. The underwater sealed connector adopts a bayonet connection structure, and the socket shell 101 of the socket 1 and the plug shell 202 of the plug 2 are matched and sleeved with each other.

Referring to fig. 2, the first seal is ensured by a first O-ring 103. The plug housing 202 mates with the receptacle housing 101 compressing the first O-ring 103 placed in the groove of the receptacle housing 101 to effect a radial seal between the mating housings, which is a first heavy radial seal.

A second reseal is ensured by the second O-ring 106. The mounting panel is an external component, and the whole underwater sealed connector is fixed on the mounting panel. The mounting plate is plate-shaped with a certain thickness, and a round hole is arranged in the middle of the mounting plate, so that the socket can be just inserted into the mounting plate. The mounting plate is captured between the gland nut 105 and the boss where the second O-ring 106 is located. The receptacle housing 101 mates with the mounting panel and compresses the second O-ring 106 on the receptacle housing 101 via the mounting gland nut 105 to form a second radial seal between the receptacle housing 101 and the mounting panel to prevent water and the like from entering the connector mating end.

Referring to fig. 2 and fig. 3, the plug housing 202 is matched with the socket housing 101, and an axial force opposite to the screwing direction is generated by compressing the sealing gasket 203 placed on the plug housing 202, so that axial locking after butt joint is realized, and transmission of electric signals is ensured. At the same time, during the compression process, the sealing gasket 203 fills the gap between the coupling nut 201 and the plug housing 202, so that a third axial seal is achieved.

Referring to fig. 2, an insulator 104 is provided inside the socket housing 101 to radially close the socket housing 101. With a plurality of pins 102 inserted into the insulator 104. Insulator 104 serves to insulate pin 102. This embodiment has optimized 1 inner structure of socket, reduces the component part, reduces the assembly degree of difficulty, raises the efficiency. The socket 1 is filled and sealed instead of the original parts such as the insulator in the socket 1, the tail space of the socket shell 101 is filled with glue, a glue layer 109 is formed after the glue is solidified, the contact pin 102 and the insulator 104 are fixed inside the socket, and meanwhile the air tightness of the product is guaranteed. In this embodiment, the glue solution is an epoxy glue. In addition, the socket 1 further comprises a snap spring 107, and one end of the snap spring 107 is pressed against the insulator 104 to face away from the plug 2. The snap spring 107 functions to restrain the insulator 104 within the socket housing 101.

Referring to fig. 3, a fourth axial seal is provided by compressing the tail block body 206. The wire sealing body 206 has a certain thickness, and can radially seal the joint between the plug housing 202 and the tail accessory 207. The wire sealing body 206 is provided with an annular protrusion, which is in radial extrusion fit with the plug housing 202. Meanwhile, the tail accessory 207 can axially extrude the wire sealing body 206 in the butt joint process, and the extrusion of the wire sealing body 206 can extrude the wire core by each hole cavity, so that water and the like are prevented from entering the plug.

Referring to fig. 3, the snap spring 204 is disposed on the outer wall of the plug housing 202, and one end of the snap spring 204 abuts against the connection nut 201. The snap ring 204 serves to limit the axial position of the coupling nut 201 so that the coupling nut 201 does not move in a direction away from the socket 1. The plug 2 further comprises an insulator assembly 205 and a plurality of jacks, the insulator assembly 205 is arranged on one side facing the socket 1 and is abutted against one side of the wire sealing body 206 facing the socket 1, and the jacks are arranged in the insulator assembly 205 at intervals. When the receptacle 1 and the header 2 are mated together, the plurality of pins 102 and the plurality of receptacles can be mated together.

The tail end of the socket shell 101 is provided with a plurality of shell internal groove 108 structures, and the shell internal grooves 108 can be filled after glue liquid is filled, so that the glue liquid layer 109 after filling is more stably fixed on the inner wall of the socket shell 101, and the filling and sealing quality is improved; referring to fig. 4, the insulator 104 is structurally provided with a partial protrusion; referring to fig. 5, a local protrusion is arranged on the structure of the pin 102, and the pin 102 is a conductor; the insulator 104 and the pin 102 are partially raised to form an interference fit, so that the positioning is convenient in assembly, and the difficulty of potting is reduced.

Referring to fig. 6, the plug tail attachment is composed of a tail nut 301, a tail clamp spring 302, an elbow 303, a straight clamp nut 304, a rubber tube 305, a screw 306 and a pressing plate assembly 307, the whole body is hollow, and is used for placing a cable, and the underwater sealed connector is connected to the rubber tube 305 through the pressing plate assembly 307 and the straight clamp nut 304 and is extended to other places through the rubber tube 305.

Through the quadruple sealing, the protection grade of the plug and socket after the underwater sealed connector is butted reaches the IP67 protection safety level.

In other embodiments, the glue solution can also be transparent silica gel, PU glue, PVC glue, and the like.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the method embodiments described later, since they correspond to the system, the description is simple, and for relevant points, reference may be made to the partial description of the system embodiments.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An underwater hermetic connector fixed to a mounting plate, comprising:

the socket (1) comprises a socket shell (101) and a first O-shaped ring (103), wherein the socket shell (101) is of a sleeve-shaped structure, a groove extending along the circumferential direction is formed in the inner wall of the socket shell (101), and the first O-shaped ring (103) is arranged in the groove;

plug (2), with socket (1) cooperation of pegging graft, plug (2) are including plug housing (202), afterbody annex (207) and the body of sealing wire (206), plug housing (202) and socket housing (101) are in the groove is cup jointed the cooperation, and the one end that socket (1) was kept away from in plug housing (202) is provided with afterbody annex (207), and the body of sealing wire (206) sets up in plug housing (202) and afterbody annex (207) junction, is equipped with first arch on the body of sealing wire (206), first arch and plug housing (202) inner wall joint.

2. The underwater hermetic connector as claimed in claim 1, wherein the socket (1) further comprises a second protrusion, a second O-ring (106) and a compression nut (105), the second protrusion is arranged on the periphery of the socket housing (101), a second groove arranged towards the mounting plate is arranged on the second protrusion, the second O-ring (106) is arranged in the second groove, and the compression nut (105) is sleeved outside the socket housing (101) and can compress the mounting plate and the second O-ring (106).

3. An underwater hermetic connector as claimed in claim 1, wherein the plug (2) further comprises a sealing gasket (203) and a connecting nut (201), the connecting nut (201) is sleeved outside the connecting portion of the socket (1) and the plug (2), a radial gap is arranged between the connecting nut (201) and the plug housing (202), and the sealing gasket (203) is arranged in the radial gap.

4. An underwater hermetic connector as claimed in claim 3, wherein the plug (2) further comprises a circlip spring (204), the circlip spring (204) is arranged on the outer periphery of the plug housing (202), and one end of the circlip spring (204) abuts against one side end face, far away from the socket (1), of the connecting nut (201).

5. An underwater hermetic connector as claimed in claim 1, wherein the plug (2) further comprises an insulator assembly (205) and a plurality of insertion holes, the insulator assembly (205) is disposed on a side facing the socket (1) and abuts against a side of the wire sealing body (206) facing the socket (1), and the plurality of insertion holes are disposed in the insulator assembly (205) at intervals.

6. An underwater hermetic connector as claimed in claim 5, wherein the socket (1) further comprises a plurality of pins (102), the plurality of pins (102) are arranged in the plug housing (202) at intervals, and the plurality of pins (102) can be plugged and matched with the jack.

7. The underwater hermetic connector as claimed in claim 6, wherein the socket (1) further comprises an insulator (104), the insulator (104) is filled in an inner cavity of the socket housing (101), and the pin (102) is extended to the outside of the socket housing (101) through the insulator (104).

8. The underwater hermetic connector as claimed in claim 7, wherein the socket (1) further comprises a clamp spring (107), the clamp spring (107) is arranged on the inner wall of the socket housing (101), and the clamp spring (107) can abut against one side of the insulator (104) far away from the plug (2).

9. An underwater hermetic connector as claimed in claim 7, characterized in that the socket housing (101) is internally provided with a glue layer (109), the glue layer (109) being provided on a side of the insulator (104) remote from the plug (2).

10. An underwater hermetic connector as claimed in claim 9, wherein the inner wall of the socket housing (101) further comprises at least one housing inner groove (108), and the glue layer (109) can be engaged with the housing inner groove (108).

11. An underwater hermetic connector as claimed in claim 9, wherein the glue layer (109) is one or a combination of epoxy glue, transparent silica gel, PU glue and PVC glue.