A kind of expansion mold for cool condensing electric cable accessoriesTechnical field
The present invention relates to dilatation mold field, specially a kind of expansion mold for cool condensing electric cable accessories.
Background technology
Cold shrinking power cable adjunct has the characteristics that small, easy to operate, product specification is few, the shrinkage cable before installing and usingAttachment is in high-tension state, and cable accessory permanent deformation or relaxation can be caused by being chronically at such state, therefore, coldContracting cable accessory generally requires and carries out divergence process to it, and existing expansion dilatation mold is generally expanded using mechanical or vapour-pressure typeZhang Fangfa be easy to cause the damage of cold shrinking power cable adjunct, vapour-pressure type is comparatively pacified although mechanical efficiency is higherEntirely, but traditional vapour-pressure type dilatation mold seldom considers the external bacterium infection problem of cold shrinking power cable adjunct, and is typically designedIt is relatively simple.
Invention content
The purpose of the present invention is to provide a kind of expansion mold for cool condensing electric cable accessories, to solve to propose in above-mentioned background technologyThe problem of.
To achieve the above object, the present invention provides the following technical solutions：A kind of expansion mold for cool condensing electric cable accessories, including branchSupport frame, the support frame front end are equipped with conical head, are fitted with the first ventilation cavity around the support frame outer wall, and described firstVentilation cavity and conical head periphery are enclosed with sterilized grease layer, and the support frame inner wall is fitted with the second ventilation skyChamber, the first ventilation cavity and the second ventilation cavity are equipped with air inlet pipe and an air outlet pipe, the support far from conical head one endSupport bar is equipped in frame, the support bar and the second ventilation cavity fit, and the support bar is fixed with far from conical head one endConnecting rod, the connecting rod are installed with draw ring far from conical head one end.
Preferably, the air inlet pipe and an air outlet pipe on the first ventilation cavity is equipped with four groups altogether, equiangularly radial rowRow.
Preferably, the air inlet pipe and an air outlet pipe on the second ventilation cavity is equipped with four groups altogether, equidistantly distributes secondCavity ventilate far from conical head one end.
Preferably, the connecting rod and the length of support bar are all higher than the length of support frame, and the length of support frame, which is more than, to be waited forExpand product length.
Compared with prior art, the beneficial effects of the invention are as follows：The expansion mold for cool condensing electric cable accessories passes through logical to firstIt is filled with the expansion that high pressure gas realizes band expansion product in gas cavity, being filled with and takes out by the second high pressure gas in cavity of ventilatingFrom realization is fixed to the extruding of support bar and easily extraction, and by the grease layer of setting disinfection, preferably protects to be expandedProduct exempts from the external bacterium infection that dilatation mold is brought.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
In figure：Support frame 1, the ventilation of grease layer 4, second cavity 5, air inlet pipe 6, goes out the ventilation of conical head 2, first cavity 3Tracheae 7, support bar 8, connecting rod 9, draw ring 10.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, completeSite preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based onEmbodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every otherEmbodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the present invention provides a kind of technical solution：A kind of expansion mold for cool condensing electric cable accessories, including support frame1,1 front end of support frame is equipped with conical head 2, and the first ventilation cavity 3, the first ventilation 3 He of cavity are fitted with around 1 outer wall of support frame2 periphery of conical head is enclosed with sterilized grease layer 4, and 1 inner wall of support frame is fitted with the second ventilation cavity 5, the first ventilationThe cavity 5 of ventilating of cavity 3 and second is equipped with air inlet pipe 6 and escape pipe 7 far from 2 one end of conical head, on the first ventilation cavity 3 intoTracheae 6 and escape pipe 7 are equipped with four groups altogether, equiangularly radial arrangement, the air inlet pipe 6 on the second ventilation cavity 5 and escape pipe 7It is equipped with four groups altogether, equidistantly distributes in the second ventilation cavity 5 far from 2 one end of conical head, support frame 1 is interior to be equipped with support bar 8, supportThe ventilation cavity 5 of item 8 and second fits, and support bar 8 is fixed with connecting rod 9 far from 2 one end of conical head, and connecting rod 9 is far from taperFirst 2 one end is installed with draw ring 10, and the length of connecting rod 9 and support bar 8 is all higher than the length of support frame 1, the length of support frame 1Degree is more than product length to be expanded.
Operation principle：It is filled with high pressure gas into the second ventilation cavity 5, support bar 8 is made to be fixed in support frame 1, then willConical head 2 is inserted into product to be expanded, and high pressure gas is filled with into the first ventilation cavity 3, and the expansion of the first ventilation cavity 3 promotesThe expansion of product to be expanded slowly pushes support frame 1 to interiors of products to be expanded to be moved to 1 end of support frame and stay in a little and waits expandingStop when opening in product, detach the high pressure gas in the second ventilation cavity 5, support bar 8 is made to eliminate squeezed state, it can be lightPine extraction, pulls draw ring 10 and connecting rod 9, extracts support bar 8 out, finally takes out support frame 1, and product to be expanded is wrapped in branch at this timeOn stay 8, expansion is completed.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be withUnderstanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replaceAnd modification, the scope of the present invention is defined by the appended.