Double-deck waterproof wire bushing
Technical field
The utility model relates to a kind of double-deck waterproof wire bushing, is particularly useful for the situation that power line need to pass two-layer housing, belongs to the wire bushing technical field.
Background technology
Generally speaking; for the purpose of safety; between electrical equipment and cable a rubber protecting jacket can be installed, this protective sleeve can be avoided between the metal, duroplasts of cable and link playing the effect of protecting electric wire and water proof and dust proof because the phase mutual friction is damaged.But common wire bushing is only applicable to the situation that electric wire passes from single hull.When cable need to connect two electrical equipment cavitys, must pass two-layer housing, in this case, although common wire bushing can protect electric wire not rub with metal, the duroplasts of link, not have necessary water proof and dust proof effect.Therefore, be necessary to invent and a kind ofly can play the water proof and dust proof effect, can protect cable not to be subjected to the wire bushing of abrasion simultaneously.
Summary of the invention
For above-mentioned existing technical problem, the utility model provides a kind of double-deck waterproof wire bushing, can be for cable provide protection when cable passes two-layer housing, and have the function of water proof and dust proof.
The utility model for achieving the above object, be achieved through the following technical solutions: a kind of double-deck waterproof wire bushing, main body is hollow circular cylinder, its longitudinal axis is provided with through wires hole, its top, middle part and bottom are respectively equipped with the first flange, the second flange and the 3rd flange, and the first flange and the second flange are the cylindricality ring, and the 3rd flange is conical ring.
Compare common wire bushing; double-deck waterproof wire bushing can provide protection to electric wire when cable passes two-layer housing; the phenomenon of having avoided electric wire and housing to produce friction and having caused the line skin to destroy, two electrical equipment cavitys that simultaneously electric wire connected all play the sealing function of water proof and dust proof.Cheap, be simple and easy to usefulness, swift to operate.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is cutaway view of the present utility model;
Fig. 3 is enforcement figure of the present utility model.
Among the figure: 1, cavity A, 2, cavity B, 3, cable, 4, double-deck waterproof wire bushing, the 5, first flange, the 6, second flange, the 7, the 3rd flange, 8, through wires hole.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, main body of the present utility model is hollow circular cylinder, and its longitudinal axis is provided with through wires hole 8, and its top, middle part and bottom are respectively equipped with the first flange 5, the second flange 6 and the 3rd flange 7, and the first flange 5 and the second flange 6 are the cylindricality ring, and the 3rd flange 7 is conical ring.
As shown in Figure 3, during enforcement, at first the first flange 5 and the second flange 6 with double-deck waterproof wire bushing 4 is stuck on the position, hole of cavity A1, then with double-deck waterproof wire bushing 4 the 3rd flange 7 by the Kong Weizhong that compresses into cavity B2, at last cable 3 is passed the through wires hole 8 of waterproof wire bushing.At this moment, the first flange 5 and the 3rd flange 7 are fixed between cavity A1 and the cavity B2 double-deck waterproof wire bushing 4, the second flange 6 is clipped between cavity A1 and the cavity B2, have intercepted being communicated with of extraneous and electrical equipment cavity, play the effect of water proof and dust proof; And the 3rd flange 7 is conical ring, conveniently is pressed into the Kong Weizhong of cavity B2; Cable 3 is passed by through wires hole 8 simultaneously, freely connects two electrical equipment cavity A1 and cavity B2.