Cable splice closure
Technical field
The present invention relates to the lightguide cable link technical field, especially relate to a kind of cable splice closure.
Background technology
Existing cable splice closure mainly is employed in the mode that sealing joint strip is set between the upper and lower casing and seals, and the sealing property of this design is out of question at normal temperatures, but the Along with season temperature variation; Air pressure in the cable splice closure is height variation thereupon also, and during summer high temperature, its air pressure inside also increases thereupon; Sealing joint strip high temperature deliquescing in addition; Often cause sealing joint strip to be broken through phenomenon, cause and leak, make cable splice closure loss of seal performance by the inner hyperbar of box body; And then can influence the communication quality of whole piece lightguide cable link, to such an extent as to need repairing, change cable splice closure.
Summary of the invention
In order to solve the problems of the technologies described above, the present invention provides a kind of sealing property good, and long service life can be guaranteed the cable splice closure of lightguide cable link communication quality.
Cable splice closure of the present invention; It comprises upper shell and lower house, and the middle part of the lower surface of upper shell has upper plenum, and the middle part of the upper surface of lower house has following cavity; Paste with the upper surface of the following side plate of lower house each other mutually the lower surface of the last side plate of upper shell; Front side between last side plate and the following side plate is provided with preceding sealing joint strip, and the rear side between last side plate and the following side plate is provided with the back sealing joint strip, and rear side is provided with sealing baffle in the said upper plenum; Last sealing baffle inserts downwards in the said cavity down; Last sealing baffle inserts the back surface that cavity inside down divides and pastes mutually with the inside surface sealing of said cavity down, and the rear side that is positioned at said back sealing joint strip on the upper surface of said side plate down is provided with the lower seal fin, and the lower seal fin setting-in that makes progress inserts the last sealed groove on the lower surface that is arranged in said upward side plate; The front side is provided with the lower seal baffle plate in the said cavity down; The lower seal baffle plate upwards inserts in the said upper plenum; The front surface that the lower seal baffle plate inserts part in the upper plenum pastes with the inside surface sealing of said upper plenum mutually; Be positioned on the said lower surface of going up side plate said before the front side of sealing joint strip be provided with the sealing fin, on seal the downward setting-in of fin insert be arranged in said under lower seal groove on the upper surface of side plate.
Cable splice closure of the present invention, the wherein said xsect of going up sealing baffle and said lower seal baffle plate is trapezoidal.
Cable splice closure of the present invention; The wherein said xsect of going up sealing baffle and said lower seal baffle plate is a right-angled trapezium; The right-angle side of last sealing baffle is positioned at the front side of sealing baffle; The right-angle side of said lower seal baffle plate is positioned at the rear side of lower seal baffle plate, and said upward sealing fin, said lower seal groove, said lower seal fin and the said xsect of going up sealed groove are trapezoidal.
Cable splice closure of the present invention; Wherein said upward side plate and the said both sides, front and back of side plate down are respectively equipped with the sealing strip deep gouge; Two sealing strip deep gouges are combined into a seal groove respectively; Sealing joint strip, back sealing joint strip are arranged in the seal groove before said, and the periphery of preceding sealing joint strip, back sealing joint strip pastes with the inwall of seal groove respectively mutually.
Compared with prior art; Beneficial effect of the present invention is: adopt the distinctive design of the present invention; Not only between the following side plate of side plate on the upper shell and lower house, be provided with sealing joint strip; Sealing baffle on also rear side is provided with in upper plenum, last sealing baffle insert downwards in the said cavity down, and paste with the inside surface sealing of following cavity mutually on the back surface that cavity inside divided under last sealing baffle inserted; The rear side that is positioned at the back sealing joint strip on the upper surface of following side plate is provided with the lower seal fin, and the lower seal fin setting-in that makes progress inserts the last sealed groove on the lower surface be arranged in side plate; The front side is provided with the lower seal baffle plate in the following cavity; The lower seal baffle plate upwards inserts in the upper plenum; The front surface that the lower seal baffle plate inserts part in the upper plenum pastes with the inside surface sealing of upper plenum mutually; The front side of sealing joint strip is provided with the sealing fin before being positioned on the lower surface of last side plate, on seal the downward setting-in of fin and insert the lower seal groove that is arranged on the said upper surface of descending side plate.Product after the improvement is through quality testing; Its sealing property is good; Solved existing cable splice closure (40 ℃~+ 65 ℃) unwarrantable difficult problem of sealing property under abominable environment for use; Owing to have the triple seal safeguard measure, stopped the bad variety of issue that causes of sealing property that existing cable splice closure occurs because of seal protection measure shortcoming.Therefore, it is good that cable splice closure of the present invention has sealing property, and long service life can be guaranteed the characteristics of lightguide cable link communication quality.
Description of drawings
Fig. 1 is the structural drawing of cable splice closure in the embodiment of the invention 1;
Fig. 2 is the structural drawing after the first half with cable splice closure among Fig. 1 cuts.
Embodiment
Below in conjunction with accompanying drawing and embodiment, specific embodiments of the invention describes in further detail.Following examples are used to explain the present invention, but are not used for limiting scope of the present invention.
As depicted in figs. 1 and 2; The cable splice closure of present embodiment; It comprises upper shell 1 and lower house 2, and the middle part of the lower surface of upper shell 1 has upper plenum 3, and the middle part of the upper surface of lower house 2 has following cavity 4; Paste with the upper surface of the following side plate 11 of lower house 2 each other mutually the lower surface of the last side plate 10 of upper shell 1; Front side between last side plate 10 and the following side plate 11 is provided with preceding sealing joint strip 15, and the rear side between last side plate 10 and the following side plate 11 is provided with back sealing joint strip 5, and rear side is provided with sealing baffle 6 in the upper plenum 3; Last sealing baffle 6 inserts downwards in the following cavity 4; Last sealing baffle 6 inserts the back surfaces of part in the cavity 4 down and pastes mutually with the inside surface sealing of following cavity 4, and the rear side that is positioned at back sealing joint strip 5 on the upper surface of following side plate 11 is provided with lower seal fin 7, and the lower seal fin 7 setting-in insertion that makes progress is arranged in the last sealed groove 8 on the lower surface of side plate 10; The front side is provided with lower seal baffle plate 16 in the following cavity 4; Lower seal baffle plate 16 upwards inserts in the upper plenum 3; The front surface that lower seal baffle plate 16 inserts part in the upper plenum 3 pastes with the inside surface sealing of upper plenum 3 mutually; The front side of sealing joint strip 15 is provided with sealing fin 17 before being positioned on the lower surface of last side plate 10, on seal the lower seal groove 18 on the upper surface that fin 17 downward setting-ins insertions are arranged in side plate 11
The above-mentioned xsect of going up sealing baffle 6 and lower seal baffle plate 16 is trapezoidal.
The above-mentioned xsect of going up sealing baffle 6 and lower seal baffle plate 16 is a right-angled trapezium; The right-angle side of last sealing baffle 6 is positioned at the front side of sealing baffle 6; The right-angle side of lower seal baffle plate 16 is positioned at the rear side of lower seal baffle plate 16, on seal fin 17 xsect be wide at the top and narrow at the bottom trapezoidal, the xsect of lower seal groove 18 is wide at the top and narrow at the bottom trapezoidal; The xsect of lower seal fin 7 is low wide and up narrow trapezoidal, and the xsect of last sealed groove 8 is low wide and up narrow trapezoidal.
Above-mentioned both sides, front and back of going up side plate 10 and following side plate 11 are respectively equipped with sealing strip deep gouge 9; Two sealing strip deep gouges 9 are combined into a seal groove respectively; Before sealing joint strip 15, back sealing joint strip 5 be arranged in the seal groove, the periphery of preceding sealing joint strip 15, back sealing joint strip 5 pastes with the inwall of seal groove respectively mutually.
The cable splice closure of present embodiment, the course of work is following:
The present invention is in order to guarantee sealing effectiveness; Adopted the triple seal protection: the first is provided with sealing baffle 6 and lower seal baffle plate 16, and during the cable splice closure encapsulation, last sealing baffle 6 inserts in the following cavity 4 of lower house 2; Lower seal baffle plate 16 inserts in the upper plenum 3 of upper shell 1; When sealing like this, unnecessary fluid sealant will fill up the joint portion of sealing baffle 6 and lower house 2 inboards and lower seal baffle plate 16 and upper shell 1 inboard, thereby plays the first resealing protective effect; Its two be on the cable splice closure original before sealing joint strip 15, the back sealing joint strip 5, play the second resealing protective effect; Its three be sealing joint strip 5 arranged outside lower seal fins 7, on sealed groove 8 and on sealing fin 17, lower seal groove 18; Sealing joint strip 15, back sealing joint strip 5 will corresponding fill up close joint portion between last sealing fin 17 and lower seal fin 7, thereby play the triple seal protective effect before when sealing like this.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from know-why of the present invention; Can also make some improvement and modification, these improve and modification also should be regarded as protection scope of the present invention.