A kind of vacuum coating equipment air inlet pipe joint and air inlet tube-connecting part
The utility model is related to filming equipment field, more particularly to a kind of vacuum coating equipment air inlet pipe plug and air inlet pipe to connect
Vacuum coating equipment be it is a kind of in industrial production use commonplace industrial equipment, with more wide application
Prospect, one layer of technology with property film layer is coated with using vacuum evaporation technique in workpiece surface, and maturation applies to
In industrial production and ornament materials.At present, relatively large vertical vacuum coating machine, generally using in plated film tank body outer surface arrangement
One air inlet aerator, built-in one group of placed longitudinally air inlet pipe, plated film tank body is higher, and corresponding built-in air inlet pipe is more long,
But, the air-tightness of the vacuum coating equipment air inlet pipe connector for commonly using at present is not high.
Utility model content
The utility model is mainly the technical problem solved existing for prior art, so as to provide a kind of with higher airtight
The vacuum coating equipment air inlet pipe joint and air inlet tube-connecting part of property.
In order to solve the above-mentioned technical problem, the utility model is adopted the following technical scheme that and is achieved：
A kind of vacuum coating equipment air inlet pipe joint, including connector portions, connector portions side are provided with fixed screw, and opposite side is provided with
Connecting portion, connecting portion is provided with sealing ring；Connecting portion include upper straight portion, upper inclined portion, in straight portion, lower inclined portion and lower straight portion, it is upper straight
Portion is connected with connector portions, and upper straight portion's diameter is suitable for reading with upper inclined portion identical, and upper inclined portion lower port diameter straight portion diameter with is identical, in it is straight
Portion's diameter is identical with lower inclined portion back cut diameter, and oblique portion's lower port diameter is identical with lower straight portion's diameter.
Further, it is to be threadedly coupled between the upper straight portion and the connector portions.
Further, the sealing ring is arranged at straight portion in connecting portion.
Further, the difference of the sealing ring outer shroud radius and inner ring radius is 1.0mm~2.5mm.
A kind of vacuum coating equipment air inlet tube-connecting part, including air inlet Fixer for pipe joint and above-mentioned air inlet pipe joint, enter
Gas-tpe fitting socket includes seal washer and metal shell, and cylinder-shaped joint hole is provided with the middle of metal shell, and seal washer is set
In in nipple orifice.
Further, the difference of the seal washer outer shroud radius and inner ring radius is 2.0mm~5.5mm.
Further, cylinder-shaped joint hole of the seal washer in the middle of the metal shell each setting symmetrical above and below
Implementing the beneficial effects of the utility model is：
Because air inlet pipe joint of the present utility model is provided with an air inlet pipe fixed screw in connector portions, in connector portions
Other side be provided with a connecting portion, on this connecting portion be provided with an elastic seal ring, air inlet Fixer for pipe joint
Seal washer is provided with, after the connecting portion of air inlet pipe joint inserts air inlet Fixer for pipe joint, sealing ring and seal washer ensure
Gas does not leak, so as to substantially increasing the air-tightness of vacuum coating equipment air inlet tube-connecting part.
Brief description of the drawings
Fig. 1 air inlet pipe joint structure schematic diagrames.
Fig. 2 air inlet Fixer for pipe joint structural representations.
Fig. 3 air inlet tube-connecting part structural representations.
Concrete scheme of the present utility model is described in further detail below in conjunction with accompanying drawing.
As shown in figure 1, one embodiment of the utility model vacuum coating equipment air inlet pipe joint includes：
Vacuum coating equipment air inlet pipe joint, including connector portions 12, the side of connector portions 12 are provided with fixed screw 11, and opposite side sets
There is connecting portion 14, connecting portion 14 is provided with sealing ring 13；Connecting portion 14 include upper straight portion 141, upper inclined portion 142, in straight portion 143,
Lower inclined portion 144 and lower straight portion 145, upper straight portion 141 are connected with connector portions 12, the upper diameter of straight portion 141 and the phase suitable for reading of upper inclined portion 142
Together, the lower port diameter of upper inclined portion 142 straight portion 143 diameter with is identical, in the straight diameter of portion 143 it is identical with the lower back cut diameter of inclined portion 144,
The lower lower port diameter of inclined portion 144 is identical with the lower diameter of straight portion 145.
Wherein, to be threadedly coupled between upper straight portion 141 and connector portions 12, sealing ring 13 is arranged at straight portion in connecting portion 14
143, the difference of the outer shroud radius of sealing ring 13 and inner ring radius is 1.0mm~2.5mm.
As shown in Figures 2 and 3, one embodiment of the utility model vacuum coating equipment air inlet tube-connecting part includes：
The utility model vacuum coating equipment air inlet tube-connecting part, including in air inlet Fixer for pipe joint 2 and above-described embodiment
Described air inlet pipe joint, air inlet Fixer for pipe joint 2 includes seal washer 21 and metal shell 22, is provided with the middle of metal shell 22
Cylinder-shaped joint hole, seal washer 21 is arranged in nipple orifice.
Wherein, the difference of the outer shroud radius of seal washer 21 and inner ring radius is 2.0mm~5.5mm, and seal washer 21 is in institute
State each setting one symmetrical above and below of the cylinder-shaped joint hole of the centre of metal shell 22.
The material of seal washer 21 can be soft metal, and the material of sealing ring 13 can be plastic cement, and be arranged at connecting portion
Sealing ring 13 on 14 can have one or more, with specific reference to actual conditions depending on, be not construed as limiting herein.
Due to being provided with sealing ring 13 in connecting portion 14 in the utility model embodiment, air inlet Fixer for pipe joint 2 is provided with
Seal washer 21, therefore, it can ensure joint seal well, it is to avoid leakage problem.