CN2094128U

CN2094128U - Underwater electrical connector

Info

Publication number: CN2094128U
Application number: CN 91205813
Authority: CN
Inventors: 冯关仁
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-04-08
Filing date: 1991-04-08
Publication date: 1992-01-22

Abstract

The utility model relates to an underwater electrical connector. Plug-in cards are respectively fixed by plug-in card fixed frames in a cavity which is arranged on the ends of the plug casing and the socket casing of the utility model, which are connected with each other mutually; a joint surface is provided with a sealing gasket; the joint surface of the plug and the socket is pressed to connect by a thread connector; the inner cavity of the other end of the plug casing is provided with the sealing head of a hermetically-sealed cable, a cushion block and a pressure screw bolt in sequence from inside to outside; the other end of the socket casing is directly fixed on an electric appliance; or the inner cavity of the other end of the plug casing is also provided with the sealing head of a hermetically-sealed cable, a cushion block and a pressure screw bolt in sequence from inside to outside. The utility model can be used in deep water, the utility model has the advantages of rapid connection and dismounting, convenient connection and dismounting, high universality and high durability.

Description

Underwater electrical connector

The utility model relates to a kind of at wet environment, particularly electric equipment that uses in the water and power cord connecting set.

The movable electric equipment that uses in wet environment or water at present adopts cable to make power lead mostly.One end of cable generally all is fixed on the electric equipment with hermetically-sealed construction in advance, and cable must move with electric equipment, therefore quite feels inconvenience.When cable lengthening or cable fault rewiring, the mode of existing cladding insulating tape does not often reach the sealed insulation requirement, and water inlet is subjected to the wet insulating effect that loses easily, to electric equipment so that the safety of the person causes serious threat.

For overcoming these shortcomings, Chinese patent application (application number 89204517) discloses a kind of " power interface connector ".Its major technique feature is the ring-type arc boss that utilizes socket core sheath left end external diameter to be provided with, and the annular recess that is provided with latch core sheath right-hand member internal diameter carries out interference fit and realizes the waterproof purpose.In addition, be respectively equipped with the annular resilient seal circle in socket core sheath right-hand member internal diameter and the latch core sheath left end internal diameter, and rely on the pressure of the tight loop of the bolt that external diameter surface separately is provided with to make the tight pressing realization waterproof purpose in power line surface in said annular resilient seal circle and the sheath.Yet the mode of groove and boss interference fit is long slightly between in use, and elastomer degradation and connecing is torn open under the more situation that causes wearing and tearing, and the space appears in cooperation place easily, to improve the water electric leakage.If under deep water, use, because water pressure increases easier water inlet.The mode of said bolt tight loop, thus reduce the waterproof effect except being easy to generate the space, and the easy corrosion of bolt and tight loop was lost efficacy, and also can reduce waterproof effect.

The purpose of this utility model provides the improvement of the electric connector that a kind of suitable wet environment particularly uses in the water, it have seal degree height, water resistance good, safe and reliable, connect and tear rapid convenience open, characteristic of simple structure again simultaneously.

The utility model has adopted following technical scheme:

This connector has plug and socket.Plug and socket respectively has a housing, and two housings interconnect that each is fixing plug-in unit with the plug-in unit fixed mount in the inner chamber of an end, the plug-in unit in the plug and socket mutually good bond in order to conduction of current.On the composition surface of an interconnected end of plug and socket seal washer is housed, and the housing external diameter surface of this end there is a threaded connector that the composition surface of plug and socket is compressed connection.Seal head, cushion block and a hold-down bolt that forces in cushion block fixing and that hermetically-sealed cable is used are housed in the inner chamber of the other end of plug casing from the inside to the outside successively.The direct fixing seal of the other end of the housing of socket perhaps is equipped with the seal head of fixing and hermetically-sealed cable, the hold-down bolt that cushion block and forces in cushion block from the inside to the outside successively in this end inner chamber on electric equipment.

Further specify below in conjunction with embodiment shown in the drawings.

Fig. 1 is the structural representation of this connector in connection status.

Fig. 2 is the socket schematic appearance in this connector.

Fig. 3 is the plug schematic appearance in this connector.

Fig. 4 is that this connector is used for the structural representation that submersible pump connects.

Fig. 5 is that the plug-in unit in this connector is the schematic diagram of compression joint type structure.

As shown in Figure 1, plug casing 5 is being fixed cable 1.Its fixed form is: in the Socket casing 5 right-hand member inner chambers, seal head 4, cushion block 3, clamp nut 2 are housed successively from the inside to the outside, the middle part that cable 1 passes clamp nut 2, cushion block 3, seal head 4 enters the inner chamber of housing 5 left ends.When clamp nut 2 screws in the internal thread of housings 5 right-hand members, just oppress seal head 4 and make it distortion and block cable 1, also reached the purpose of water-tight simultaneously.Lead in the cable 1 can connect with plug-in unit 7 by connection bolt 6 in the left end inner chamber of housing 5, and plug-in unit 7 is fixed in this inner chamber by 18 effects of plug-in unit fixed mount.In the right-hand member inner chamber of Socket casing 12, lead connects with plug-in unit 10 by connection bolt 11, and this plug-in unit 10 is fixed in the inner chamber by plug-in unit fixed mount 17 again.The left end of Socket casing 12 can be directly installed on (directly as the socket on the electric equipment) on the electric equipment; Also can join with cable, promptly in the inner chamber of these housing 12 left ends, pack into successively from the inside to the outside seal head 13, cushion block 14, clamp nut 15.This clamp nut screws in housing 12 left end internal threads, and compressing seal head 13 makes it to block cable 16, has also reached the purpose of water-tight.

One elastic insulated packing ring 8 also is housed on both composition surfaces of plug casing and Socket casing.Also have a thread connector on the external diameter of two housings, this connector forces in two housings, makes the tight pressing of two housings jointing end face.Thread connector in the present embodiment is a nut 9, and the screw-threaded engagement on this nut and the housing external diameter is strained another housing again two housings is linked together.Because packing ring 8 is subjected to the cramping of two housings end face, thereby has the excellent waterproof effect.In addition, above-mentioned said plug-in unit fixed

mount

17 and 18 generally is plastics or rubber insulators, is screwed in the inner chamber of housing 12 or housing 5.Plug-in

unit

10 and 7 is then as inserts, and is pre-aligned in plug-in unit fixed

mount

17 and 18 in injection moulding process.

By Fig. 2 and Fig. 3 also as can be known,

clamp nut

2 and 15 external diameter surface also are shaped on axial tooth bar shaped decorative pattern respectively, so that the manual bolt that screws; Also be shaped on

hexagon plane

25 and 24, use so that spanner screws bolt.

What Fig. 4 showed is the structural representation that this connector is connected with immersible pump.As seen from the figure, socket is as the fixture on the immersible pump, and its shape changes (nature also can change with other electric device) with the diving pump structure.Obviously, Socket casing is easy to 21 sealings of the immersible pump pump housing tight.Lead 22 is exactly a plug-in unit 10 by an end of this inserts 23 of inserts 23(in the socket 12) external power source is introduced motor for submerged pump.

In addition, the plug-in unit in the aforesaid plug and socket is respectively the latch and the jack that can cooperatively interact; Also can be the electric contact that to aim at the pressing contact mutually as shown in Figure 5; Latch 27 is subjected to spring 26 effect can be to right-hand motion certain distance, and jack 29 also is subjected to spring 28 effects can be to the left movement certain distance, thereby can guarantee that the contact of 30 places, contact is good.

The mode that clamp nut pressing seal head of the present utility model distortion makes it to seal, and thread connector tension two housings make it the mode of the gasket deforms sealing of end face, have good sealed waterproof effect, and joint, convenient disassembly are rapid.In addition, each bolt all adopts particularly nylon making of plastics, can not produce corrosion fully.Another advantage that adopts the bolt pressing or compress mode is to adjust the bolt pressure force at any time according to abrasion condition, can guarantee sealing effectiveness, thereby durable in use.

The utility model can various humidities, many dirt and under water with uses such as deepwater environment such as construction site, tunnel, farmland, transmission power can reach dozens of kilowatt.After submersible pump adopts this technology, can be fully and electrical cables separate in various occasions such as manufacturing, transportations.Thereby significantly alleviated working strength of workers, improved production efficiency.The damaged probability of cable also reduces significantly, has reduced factory and user's loss.In addition, this connector is connected firmly, sealing is strong, simple in structure, volume is small and exquisite, highly versatile, uses for various electric equipment wiring, the effect of joint use is arranged, thereby has broad prospect for its application.

Claims

1, a kind of submersible type electric connector, has plug and socket, plug and socket respectively has a housing, each is fixing plug-in unit with the plug-in unit fixed mount in the inner chamber that interconnects an end of two housings, it is characterized in that plug and socket is connected to each other on the composition surface of an end is equipped with seal washer, the housing external diameter surface of this end has a threaded connector that the composition surface of plug and socket is compressed connection, and seal head, the cushion block of fixing and hermetically-sealed cable are housed in the inner chamber of the other end of plug casing from the inside to the outside successively, and hold-down bolt that forces in cushion block; The other end of Socket casing directly is fixed on the electric equipment, and seal head, cushion block and a hold-down bolt that forces in this cushion block of being used for fixing with hermetically-sealed cable perhaps are housed in the inner chamber of this end housing body from the inside to the outside successively.

2, by the said submersible type electric connector of claim 1, it is characterized in that the external diameter surface of the hold-down bolt of said socket and plug is shaped on the hexagon plane of being convenient to the spanner application of force.