CN2246298Y - Self-checking optical cable connecting box - Google Patents

Abstract

The utility model provides a self-checking optical cable connecting box, comprising an open type optical cable connecting box composed of two halves of box bodies and an end sealing type optical cable connecting box composed of a box body and two end covers. The box body is provided with one to two detecting valves. With the detecting valves, the air-tightness of the optical cable connecting box assembled or in the course of the operation can be detected with the mode of inflation under the condition of not opening the optical cable connecting box, and moisture inside can be removed. The utility model has the advantage of simple structure, convenient detection, and flexibility.

Description

The self-monitoring optical cable connecting box

The utility model relates to a kind of optical cable connecting box, particularly relates to a kind of self-monitoring optical cable connecting box.

Impermeability is the key technical indexes that optical cable connecting box assembling back requires, and the optical cable connecting box of existing use mostly is open-type and end envelope formula.The former is made of the two halves box body, and the cable mouth that advances at two ends needs to swathe optical cable with silicone band, and the thickness that swathes adhesive tape is difficult to accomplish to be in harmony benefit.The box body both sides snap in the sealing of silica gel strip or rubber strip, and two narrow and disturb then, use screw in compression again.Silicone band that two ends twine is difficult to consistent with the silica gel strip or the rubber strip pressurized of both sides, so be difficult for accomplishing once assembling qualified, impermeability is difficult to guarantee.Even if use the latter to hold envelope formula optical cable connecting box, it is very high once to assemble qualified success ratio, still can't detect impermeability.Moreover optical cable connecting box is in use because vibrations or seal pressure drop low elasticity of a specified duration, or other reason all can cause fastening position loosening, reduces impermeability, causes and advances tide, water inlet in the box body, causes route funeral consumption to increase, even influences normal communication.

It is a kind of with the self-monitoring optical cable connecting box that detects valve that the purpose of this utility model is to provide.

The utility model self-monitoring optical cable connecting box comprises the open-type optical cable connecting box that is made of the two halves box body, and seals the formula optical cable connecting box by the end that box body and end cap constitute.1-2 is installed on its box body props up the detection valve.Detect valve by the valve stake of passing box body, be positioned at the seal of valve stake upper cartridge body both sides, the fastening nut that cooperates with the valve stake, and the valve cap that cooperates with valve stake external port composition.Wherein seal comprises plain cushion, O-ring seal etc.Be preferably in sealing gasket is set in the valve cap, it is air tight to guarantee to detect valve better.As install one and detect valve, whether the optical cable connecting box that then can only detect in assembling back or the use leaks gas.As install 2 and detect valves, can not only detect and whether leak gas, and can also get rid of the moisture of box body, promptly from wherein one detect valve and charge into heated drying air, detect valve from another and discharge.Optical cable connecting box for no external pile crown can directly be installed on the box body.For the optical cable connecting box that external pile crown is arranged, can change external pile crown into the detection valve, promptly get through the hole on the pile extension head outside, add that valve cap gets final product, recondition expense is very low.

Certainly the detection mode of the utility model self-monitoring optical cable connecting box is, for the optical cable connecting box that assembles, seal one and detect valve, with inflator pump dry air being detected valve from another charges into, smear the sealing position with suds again, can conclude whether assembling is qualified, or whether impermeability reduces in the use.

The advantage of the utility model self-monitoring optical cable connecting box is can be under the situation of not opening the optical cable box; whether the impermeability of optical cable connecting box is qualified when detecting assembling easily with the inflation mode utmost point; whether advance the tide water inlet in the use; it is unobstructed to help protection maintenance circuit; simple in structure, it is low to install expense additional.

Describe the utility model embodiment in detail below in conjunction with accompanying drawing.

Fig. 1: the utility model structural representation

Fig. 2: detect the air valve structure synoptic diagram

The utility model self-monitoring optical cable connecting box is to install 2 to detect valve 2 on box body 1, detect valve 2 by the valve stake 3 of passing box body 1, be positioned at the plain cushion 4 and the O-ring seal 5 of valve stake 3 upper cartridge bodies 1 both sides, the fastening nut 6 that cooperates with valve stake 3, and cooperate, and innerly form by the valve cap 8 of sealing gasket 7 with valve stake 3 external port.

Claims (2)

1, a kind of self-monitoring optical cable connecting box is characterized in that being equipped with on the box body 1-2 and props up the detection valve.

2, self-monitoring optical cable connecting box as claimed in claim 1, it is characterized in that detecting valve by the valve stake of passing box body, be positioned at the seal of valve stake upper cartridge body both sides, the fastening nut that cooperates with the valve stake, and the valve cap that cooperates with valve stake external port is formed.

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