A kind of cable
Technical field
The present invention relates to field of cables, in particular to a kind of cable.
Background technique
When in use, sometimes since the cable of dragging is longer, cable and can follow machinery with ground face contact to cable
Equipment friction of motion on the ground causes serving and ground friction impaired, therefore such cable or electric wire service life are past
It is past shorter.
In addition, the structure of cable or electric wire is often fairly simple, at work, a large amount of heat can be generated, these hot meetings
Cause cable or cable service performance to reduce, influences its service performance, therefore the heat dissipation performance for promoting cable is highly desirable.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of cables, have extraordinary heat dissipation performance, and have anti-
The function of abrasion, service life can greatly increase, and effectively solve deficiency in the prior art.
The present invention is achieved through the following technical solutions:A kind of cable, including cable serving, cable serving
Centre has an accommodating chamber, is arranged cable core in the accommodating chamber, and the cable core includes internal core wire and inner protective layer, interior
Core wire is set in inner protective layer, the more than one fixed hub of external integrated injection molding of the inner protective layer, described solid
Dead axle set is intermediate to be arranged a pin holes, is inserted into a root cutting needle in each pin holes, on the cable serving of the every root cutting needle of face
A mounting hole is opened up, air-breathing part is packed into each mounting hole, the centre of the air-breathing part faces every root cutting needle and is all provided with
It is equipped with a through-hole, the contact pin passes through the through-hole among each air-breathing part and stretches out in the outside of cable serving.
The air-breathing part includes a rubber serving, the intermediate setting of rubber serving as a preferred technical solution,
There is a closed suction chamber, an air-breathing cotton is filled in each suction chamber, the outboard end of the rubber serving is provided with one
Root escape pipe, rubber serving are located at accommodating chamber one end and are provided with an air intake duct.
One outlet ball valve is installed on the escape pipe as a preferred technical solution, is equipped on the air intake duct
One air-breathing ball valve, the outlet ball valve and air-breathing ball valve are check valve.
The air-breathing cotton is memory foam as a preferred technical solution,.
The contact pin is metallic elastic needle as a preferred technical solution, and the external extension end end face of contact pin is one
Spherical.
The outer wall of the contact pin is in sealing contact by the through-hole wall of air-breathing part as a preferred technical solution,.
The beneficial effects of the invention are as follows:One, the present invention can be using the metallic elastic needle stretched out as the friction with ground, can
It is effectively prevent cable serving and ground face contact, increases service life;
Two, when metallic elastic needle encounters the object of ground protrusion or be squeezed topple over towards side when, suction can be squeezed
Gas part, and then the hot-air inside air-breathing part is squeezed out, and suck the hot-air inside cable, internal-external heat exchanger is realized with this, is increased
Add heat dissipation performance.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is overall structure diagram of the invention;
Fig. 2 is inner section schematic diagram of the invention;
Fig. 3 is the assembly structure diagram of air-breathing part and contact pin of the invention.
Coding in figure is respectively:1 is cable core, and 2 be accommodating chamber, and 3 be contact pin, and 4 is drape over one's shoulders layer outside cable, 5 be air-breathing part,
6 be fixed hub, and 7 be air intake duct, and 8 be escape pipe, and 11 be air-breathing cotton, and 12 drape over one's shoulders layer for rubber outside.
Specific embodiment
As depicted in figs. 1 and 2, a kind of cable, including cable serving 4, the centre of cable serving 4 have a receiving
Chamber 2, accommodating chamber 2 is interior to be arranged cable core 1, and cable core 1 includes internal core wire and inner protective layer, and internal core wire is set to inner protective layer
In, the more than one fixed hub 6 of the external integrated injection molding of inner protective layer;
One pin holes are set among fixed hub 6, a root cutting needle 3 is inserted into each pin holes, the every root cutting needle 3 of face
A mounting hole is opened up on cable serving 4, air-breathing part 5 is packed into each mounting hole, and the centre of air-breathing part 5 faces often
Root cutting needle 3 is provided with a through-hole, and contact pin 3 passes through the through-hole among each air-breathing part 5 and stretches out in the outer of cable serving 4
Portion.
As shown in figure 3, air-breathing part 5 includes a rubber serving 12, the centre of rubber serving 12 is provided with an envelope
The suction chamber closed fills an air-breathing cotton 11 in each suction chamber, and the outboard end of rubber serving 12 is provided with an escape pipe
8, rubber serving 12 is located at 2 one end of accommodating chamber and is provided with an air intake duct 7.
Wherein, an outlet ball valve is installed on escape pipe 8, an air-breathing ball valve, outlet ball valve are installed on air intake duct 7
And air-breathing ball valve is check valve, which uses ball-valve structure, so that the air-breathing cotton inside air-breathing part is restoring shape
When change, air-breathing ball valve is opened, and sucks the hot-air inside cable serving, and then hot-air is drawn into suction chamber;
When contact pin is pressurized and squeezes any one side of air-breathing part, the compression of air-breathing cotton can be made to become using extruding force
Shape, and then the hot-air sucked in air-breathing cotton is expelled to the outside of cable from escape pipe realizes that repetition is absorbed heat and put with this
Heat.
In the present embodiment, air-breathing cotton 11 is memory foam.Memory foam is extensive using comparing, and has the energy of rebound
Power can slowly restore deformation after being compressed, therefore after contact pin squeeze memory foam, can slowly spring back, spring back
After completion, contact pin outer wall is resealed using rubber serving, so that when not in use, the inside of cable serving and outer
Boundary's sealing.
In the present embodiment, contact pin 3 is metallic elastic needle, and the external extension end end face of contact pin 3 is a spherical.It is dragging
During dragging, contact pin is by spherical and ground face contact friction, therefore frictional force is small, can be effective against friction, and can avoid
Cable serving is damaged;
A kind of cable is illustrated in the present embodiment, but the structure of electric wire is also identical as the present invention, can also be used such
Mode realizes protection.Since contact pin is resilient metal member, the heat exchange of inside and outside heat may be implemented, reach preferably heat dissipation effect
Fruit.
The beneficial effects of the invention are as follows:
One, the present invention can effectively prevent cable serving using the metallic elastic needle stretched out as the friction with ground
With ground face contact, increase service life;
Two, when metallic elastic needle encounters the object of ground protrusion or be squeezed topple over towards side when, suction can be squeezed
Gas part, and then the hot-air inside air-breathing part is squeezed out, and suck the hot-air inside cable, internal-external heat exchanger is realized with this, is increased
Add heat dissipation performance.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
The change or replacement expected without creative work, should be covered by the protection scope of the present invention.Therefore, of the invention
Protection scope should be determined by the scope of protection defined in the claims.