A kind of insulated type high pressure steel wire hose assembly
Technical field
The present invention relates to high pressure steel wire hose assembly technical fields, total more particularly to a kind of insulated type high pressure steel wire sebific duct
At.
Background technology
The hose assembly of existing hydraulic point machine is nonisulated type, when being especially used in subway in wet environment, sebific duct
The hydraulic point machine of assembly connection can receive certain reflux electricity.Due to sebific duct would generally be laid with on ground, in this way such as pectin
Pipe assembly is on-insulated, and sebific duct will be made to become electrical body and form certain potential difference with the earth, so as to cause the braiding in sebific duct
Steel wire galvano-cautery causes hose assembly damaged.Existing hose assembly is when withholding simultaneously, due to metal jacket pipe and high pressure steel
The braided steel wire object of silk braided construction hose is in direct contact, and is easily led to the breakage of steel wire braid, is influenced performance and the service life of sebific duct.
It can be seen that above-mentioned existing nonisulated type high pressure steel wire hose assembly is in structure and use, it is clear that there are still
There is inconvenient and defect, and needs to be further improved.The present invention seeks to found a kind of new insulated type high pressure steel wire sebific duct
Assembly can realize the insulation of high pressure wire braided hose and metal jacket pipe and inner core tube, prolong the service life, and improve resistance to
The property used.
Invention content
The technical problem to be solved in the present invention is to provide a kind of insulated type high pressure steel wire hose assemblies, can realize high pressure
The insulation of wire braided hose and metal jacket pipe and inner core tube extends the service life, durability is improved, to overcome existing high pressure
The deficiency of wire rubber pipe assembly.
In order to solve the above technical problems, a kind of insulated type high pressure steel wire hose assembly of present invention offer, including rubber hose coupling,
Metal jacket pipe, insulating sleeve and high pressure steel wire sebific duct,
The rubber hose coupling includes external tapping end and inner core pipe end, and the inner core pipe end is for being inserted into the high-pressure wire rubber hose
Tube end;
The metal jacket pipe is movably disposed in the inner core pipe end periphery of the rubber hose coupling, in outer masterpiece
It is closely withheld in the periphery of the high-pressure wire rubber hose tube end with lower;
The insulating sleeve is arranged in the end of the high pressure steel wire sebific duct, the inner core tube for avoiding the rubber hose coupling
On the outside of end and metal jacket pipe inside is in direct contact with the high pressure steel wire sebific duct.
As an improvement of the present invention, the insulating sleeve includes interior insulation pipe and external insulation pipe, the interior insulation pipe
The casing of flanging is carried for one end, the internal diameter of the external insulation pipe is equal to the outer diameter of the interior insulation pipe flanging circumference.
It is further improved, the U-shaped endless tube structure that the interior insulation pipe and external insulation pipe are integrally formed.
It is further improved, the insulating sleeve uses rubber, nylon, polytetrafluoroethylene (PTFE) or silica gel material.
By adopting such a design, the present invention has at least the following advantages:
1, the present invention by the end face and end of high pressure wire braided hose outside be respectively provided with and be formed by insulating materials
Casing, so that rubber hose coupling and metal jacket pipe is reached absolute insulation with high pressure steel wire sebific duct, so that the hose assembly is had good
Insulation characterisitic well, while can guarantee that high pressure resistant equal original functions are constant again, the reliability and durability of hose assembly are improved, is fitted
For different kinds of railways track switch hydraulic conversion equipment.
2, also the difficulty of processing of insulating sleeve is reduced, is somebody's turn to do by setting insulating sleeve to interior insulation pipe and external insulation pipe
Insulated type high pressure steel wire hose assembly is simple in structure, at low cost, is conducive to promote.
Description of the drawings
The above is merely an overview of the technical solutions of the present invention, in order to better understand the technical means of the present invention, below
In conjunction with attached drawing, the present invention is described in further detail with specific implementation mode.
Fig. 1 is the structural schematic diagram of insulated type high pressure steel wire hose assembly of the present invention.
Fig. 2 is the longitudinal sectional view of interior insulation pipe in the present invention.
Fig. 3 is the flanging transverse sectional view of interior insulation pipe in the present invention.
Fig. 4 is the longitudinal sectional view of China and foreign countries' insulation tube of the present invention.
Fig. 5 is the transverse sectional view of China and foreign countries' insulation tube of the present invention.
Specific implementation mode
The present embodiment carries out specifically technical solution of the present invention by taking hydraulic point machine high pressure steel wire hose assembly as an example
It is bright, it should not be understood as any limitation of the invention.Detailed description are as follows for the present embodiment.
With reference to shown in attached drawing 1, the present embodiment insulated type high pressure steel wire hose assembly, including rubber hose coupling 1, metal jacket pipe
2, insulating sleeve and high pressure steel wire sebific duct 6.
The rubber hose coupling 1 includes external tapping end and inner core pipe end 5, and the inner core pipe end 5 is for being inserted into the high pressure steel wire sebific duct 6
End.
The metal jacket pipe 2 is movably disposed in 5 periphery of inner core pipe end of the rubber hose coupling, in outer force effect
The periphery in 6 end of high pressure steel wire sebific duct is closely withheld down, is realized the cooperation with rubber hose coupling inner core tube, is reached rubber hose coupling
1 is fixedly connected with high pressure steel wire sebific duct 6.
The insulating sleeve is arranged in the end of the high pressure steel wire sebific duct 6, the inner core pipe end 5 for avoiding the rubber hose coupling 1
Outside and 2 inside of the metal jacket pipe are in direct contact with the high pressure steel wire sebific duct 6, play the metal jacket pipe and inner core tube and
The braided steel wire object of high pressure wire braided hose is in direct contact, and achievees the purpose that really to insulate.
Preferred embodiment is that with reference to shown in attached drawing 2 to 5, which includes interior insulation pipe 4 and external insulation pipe 3.This is interior
Insulation tube 4 is the casing that one end carries flanging 7, and the internal diameter of the external insulation pipe 3 is equal to the outer of 7 circumference of interior insulation pipe flanging
Diameter, such interior insulation pipe 4 and external insulation pipe 3, which match, just realizes the completely isolated metal jacket pipe and inner core tube and high pressure steel
The braided steel wire object of silk braided construction hose is in direct contact, and simply and easily realizes insulation purpose.Certainly, the interior insulation pipe 4 and outer
Insulation tube 3 or integrally formed U-shaped endless tube structure, keep assembling easier.
Insulating sleeve uses rubber material in the present embodiment, naturally it is also possible to use existing various insulating materials, such as Buddhist nun
Dragon, polytetrafluoroethylene (PTFE) or silica gel etc..
The assembling steps of insulated type high pressure steel wire hose assembly of the present invention are:Insulating sleeve is first sleeved on the high pressure steel wire
Then the insertion of the inner core tube of rubber hose coupling 5 is set with inside the high pressure steel wire sebific duct 6 of the insulating sleeve, most by the end of sebific duct 6
Afterwards by applying external force to metal jacket pipe 2, realize that metal jacket pipe 2 is completed with the cooperation of rubber hose coupling 1 to high pressure steel wire sebific duct 6
Be fixedly connected.
Insulated type high pressure steel wire hose assembly of the present invention between metal jacket pipe and high pressure wire braided hose by increasing
If insulating materials flexible, make the hose assembly that there is good insulation characterisitic, it can also be to the high pressure wire braided hose
Steel wire braid forms protection, effectively prevent weighing it wounded, improves the reliability of hose assembly, while can guarantee again high pressure resistant etc.
Original function is constant, suitable for different kinds of railways track switch with hydraulic conversion equipment.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, this
Field technology personnel make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above, all fall within this hair
In bright protection domain.