A kind of electric connector of high pressure differential
Technical field
The utility model relates to a kind of electric connector more particularly to a kind of electric connectors of high pressure differential.
Background technique
In more complicated industrial control field, it is often necessary to carry out simultaneous transmission multiple telecommunication using cable core
Number, and need the cable that can facilitate disconnection or connection, in order to inspection and maintenance equipment etc..Contact pin is commonly used thus, is inserted
Hole combination patches connector, and the mode for taking plug to connect ensures to transmit signal.Existing aviation plug has met very much
Particular job occasion, such as high voltage withstanding, high-low temperature resistant, waterproof, fire prevention, anticorrosive, high current etc..But still have it is some special
Environmental condition under it is impossible to meet not only need electric signal from height such as in the biggish situation of connector internal and external pressure difference
Pressure side is transmitted to low pressure side, while being also required to plug with some strength, meets seal request, prevents high-pressure bottle internal pressure
Power leakage.
In the prior art, common solution is that rubber pad squeezes sealing or perfusion sealant sealing.Such as specially
Sharp CN 105179693A is sealed using squeezing, 204,153,330 203657793 U and CN of U, CN of patent CN
202676193 U are using perfusion sealant sealing.Sealing is squeezed for single enameled wire, it may under high-pressure situations
Conducting wire is broken to or is reduced wire cross-section area, for multicore cable, high pressure gas can be by stitching between each stock cable
Gap leakage, often sealed pressure is not high.Sealant sealing is perfused and often uses epoxy resin, but can be received when epoxy resin cure
Contracting, sealing performance are not sufficiently stable, dismantle and replace and is comparatively laborious.
Therefore, a kind of electric connector of connection high-pressure bottle of the application exactly proposes in this background, to realize
Two sides high pressure differential, sealing performance are stablized, the circuit connection of convenient disassembly.
Utility model content
The purpose of this utility model is to provide a kind of electric connectors of high pressure differential, overcome existing electric connector real
Existing high voltage bearing defect, is matched using taper insulator made of insulating materials with shell type chamber, using two O-shaped sealings
Circle, guarantees the reliable sealing of insulator.
To achieve the above object, the utility model provides a kind of electric connector of high pressure differential, including shell 1, insulator
2, fastening nut 3, compress gasket 4, O-ring seal 1, O-ring seal 26, hold-down bolt 7 pass through on the left of the shell 1
Screw pair is fixedly connected with pressure vessel 8, and 2 left part of insulator is cylindrical, and right part is in cone, is arranged on shell 1
There is the type chamber being adapted with 2 shape of insulator, for installing housing insulation body 2, the 1 type chamber left part of shell is provided with annular
Groove one, 1 type chamber right part of shell are provided with annular groove two, are separately installed with O-shaped sealing in annular groove one, annular groove two
One 5, O-ring seal 26 is enclosed, the left part of the shell 1 is fixed fastening nut 3 by screw pair, is arranged on fastening nut 3
Threaded hole 302 be combined with hold-down bolt 7, the right part of hold-down bolt 7 withstands on the left side of compress gasket 4, the right side of compress gasket 4
Side is bonded the left end of insulator 2, is provided with three copper tube terminals 201 in the insulator 2,201 both ends of copper tube terminals are pierced by
Insulator 2.
Preferably, the fastening nut 3, compress gasket 4 are hollow structure, for avoiding a left side for copper tube terminals 201
End.
Preferably, the copper tube terminals 201 are structure as a whole with insulator 2, to prevent the pressure in pressure vessel 8
It is leaked along copper tube terminals 201.
Preferably, the O-ring seal 1,26 material of O-ring seal are made of nitrile rubber, to high pressure ring
Border is less likely to be damaged.
Preferably, the insulator 2 is made of 3000 material of ARLON.
Preferably, the fastening nut 3 is along the circumferential direction uniformly arranged there are four blind hole 303, real to spanner clamping
The dismounting of existing fastening nut 3.
Compared with prior art, the utility model has the following beneficial effects:
1. using conical structure using cylindrical, right side on the left of insulator, shell uses the type being adapted with insulator
Chamber, the cylinder shaped position and conical position of type chamber are provided with O-ring seal, and realization seals twice, improve the reliable of sealing
Property;
2. the tapered segment of insulator is arranged along the direction that pressure vessel diametrically becomes smaller from inside to lateral direction, protect
Card insulator is not deviate from;
3. insulator holds out against compress gasket using hold-down bolt, compress gasket holds out against the structure of insulator, insulator is realized
Reliable compression;
4. hold-down bolt screws on fastening nut, fastening nut is connect by screw pair with shell, is readily disassembled fastening
Nut, and replacement insulator.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the electric connector of high pressure differential is mounted on high-pressure bottle.
Fig. 2 is the overall construction drawing of the electric connector of high pressure differential.
Fig. 3 is insulator structure schematic diagram.
Fig. 4 is fastening nut structural schematic diagram.
Appended drawing reference: 1- shell;2- insulator;3- fastening nut;4- compress gasket;5-O type sealing ring one;6-O type is close
Seal two;7- hold-down bolt;8- pressure vessel.
Specific embodiment
In conjunction with Fig. 1-4, a kind of electric connector of high pressure differential, including shell 1, insulator 2, fastening nut 3, compress gasket
4, O-ring seal 1, O-ring seal 26, hold-down bolt 7, the shell 1 is cylindrical, and 1 left end of shell is provided with
External screw thread 1, the external screw thread 1 on shell 1 are screwed with the threaded hole one that is connected with inside on pressure vessel 8, are realized
Shell 1 is fixed on pressure vessel 8,2 left part of insulator is cylindrical, and right part is in cone, is provided on shell 1
The type chamber being adapted with 2 shape of insulator, for installing housing insulation body 2, it is recessed that the 1 type chamber left part of shell is provided with annular
Slot one, 1 type chamber right part of shell are provided with annular groove two, are separately installed with O-ring seal in annular groove one, annular groove two
One 5, O-ring seal 26, for insulator 2 realization seal twice, the internal thread hole two of the left part of the shell 1 with
The external screw thread 2 301 being arranged on fastening nut 3 screws, and four be arranged on fastening nut 3 threaded hole 302 is combined with hold-down bolt
7, the right part of hold-down bolt 7 withstands on the left side of compress gasket 4, and the left end of the right side fitting insulator 2 of compress gasket 4 is described
Insulator 2 in be provided with three copper tube terminals 201,201 both ends of copper tube terminals are pierced by insulator 2, hold for side and pressure
The connection in the outside of the connection in device 8, the other side and pressure vessel 8.
The fastening nut 3, compress gasket 4 are hollow structure, for avoiding the left end of copper tube terminals 201.
The copper tube terminals 201 are structure as a whole with insulator 2, prevent the pressure in pressure vessel 8 along copper tube terminals
201 leakages.
The O-ring seal 1,26 material of O-ring seal are made of nitrile rubber, do not allow to high-pressure environment
It is easy to damage.
The fastening nut 3 is along the circumferential direction uniformly arranged there are four blind hole 303, to spanner clamping, realizes fastening
The dismounting of nut 3.
In use, the connection in the left side and pressure vessel of copper tube terminals 201 is screwed shell 1 in pressure vessel 8
Connector on, the right side of copper tube terminals 201 and the connection of instrument and equipment.
When the electric connector assembly of high pressure differential, mounting O-shaped will be distinguished in the annular groove one of shell 1, annular groove two
Sealing ring 1, O-ring seal 26, insulator 2 is put into the type chamber of shell 1, and compress gasket 4 is attached to a left side for insulator 2
End, fastening nut 3 is tightened on shell 1, hold-down bolt 7 is selected into four threaded holes 302 axially disposed on fastening nut 3
It is interior, and screw, compress insulator 2.