CN201119252Y

CN201119252Y - A grounding protection device for shielding cable

Info

Publication number: CN201119252Y
Application number: CNU200720075368XU
Authority: CN
Inventors: 雷震; 夏娟
Original assignee: Tellabs Communication Technologies Shanghai Ltd
Current assignee: Tellabs Communication Technologies Shanghai Ltd
Priority date: 2007-10-10
Filing date: 2007-10-10
Publication date: 2008-09-17
Anticipated expiration: 2017-10-10

Abstract

The utility model discloses a grounding protecting device of the shielding cable, which comprises a U-shaped support (1), a positioning sliding plate (2), a compressing plate (3), an adjusting bolt (4), a cable protecting clamp (5) and a base plate (6). At least a first stage clamping groove (11) used for positioning the positioning sliding plate (2) is arranged on the U-shaped support (1); the positioning sliding plate (2) is connected with the adjusting bolt (4) through thread, the head part of the adjusting bolt (4) is propped against the compressing plate (3); the cable protecting clamp (5) is hung on the U-shaped support (1) through a hanging hook (51) and is positioned in the space formed by the compressing plate (3) and the U-shaped support (1); the U-shaped support (1) is connected with the base plate (6) through a bolt. The grounding protecting device of the shielding cable can effectively realize the grounding of the shielding cable, and simultaneously protect the cables from being excessively squeezed to influence the electric performance thereof.

Description

A kind of shielded cable earth protective device

Technical field

The present invention relates to a kind of earth protective device, shielded cable earth protective device in particularly a kind of communication cabinet.

Background technology

Good grounding system is a requisite important ring that guarantees data safe and reliable transmission in shielded cable; shielded cable entry communication rack; for the protection cable is avoided the influence that high-frequency electromagnetic disturbs, the good ground connection reliably of the metal screen layer of shielded cable is necessary.According to existing technology, every shielded cable can independent grounding, but can cause the cable in the communication cabinet intricate like this, has not only influenced the heat radiation attractive in appearance but also equipment of giving, and dilatation, maintenance wait and bring adverse effect.

According to existing technology, also can utilize earthing device to realize many shielded cable ground connection simultaneously, but these devices can not well be applied in the communication cabinet.Such as a kind of method is arranged is that conductive shell is arranged in the support, and shielded type cable is placed on after being stripped from outermost garment bag and exposing metal foil layer in the conductive shell in the support, and utilizes cover plate to be stuck on the support, thereby shielded cable is contacted with conductive shell.Such a earthing device is used for communication cabinet with regard to incompatibility, because communication cabinet is wanted can be applied in the environment of natural conditions very severe, and general still can operate as normal in the earthquake below 4 grades, anti-seismic performance as above-mentioned earthing device does not just possess, when running into vibrations, cover plate might come off, so can not guarantee that just shielded cable well contacts with conductive shell.

Summary of the invention

For addressing the above problem, the invention provides a kind of shielded cable earth protective device, make shielded cable have good ground connection reliably.

For achieving the above object, shielded cable earth protective device of the present utility model comprises U type support 1, location slide plate 2, compressive plate 3, adjustment screw 4, cable protection folder 5 and substrate 6; Have elongated slot 12 on the both wings of described U type support 1, the flange 31 at compressive plate 3 two ends is stuck in the elongated slot 12 and can slides in elongated slot 12; Have the draw-in groove of one-level at least 11 that is used to locate slide plate 2 location on the described U type support 1, described location slide plate 2 is stuck on the draw-in groove 11 by oblong aperture 21 and rectangular groove 22 on the slide plate 2 of location; Described location slide plate 2 adopts with adjustment screw 4 and is threaded, and the head of adjustment screw 4 withstands compressive plate 3; On the described cable protection folder 5 hook 51 is arranged, hang on the U type support 1, be positioned at the space that compressive plate 3 and U type support 1 constitute by linking up with 51; Described U type support 1 adopts bolt to be connected with substrate 6.

Shielded cable earth protective device of the present utility model also comprises rubber ring 7, and described rubber ring 7 hangs on the substrate 6.

The head of described adjustment screw 4 is provided with protruding axle 41, and compressive plate 3 is provided with and protruding axle 41 axis holes that are complementary 32.

Described cable protection folder 5 is an elliptical shape, and the occluded ellipse end of described cable protection folder 5 has a rectangular otch 52.

Described U type support 1, location slide plate 2, compressive plate 3, adjustment screw 4, cable protection folder 5 and substrate 6 are stainless steel material.

Shielded cable earth protective device of the present utility model is installed in communication cabinet cable import department, and the shielded cable metal screen layer effectively connects with rack primary shield ground connection row by this device, thereby realization protection cable is avoided the influence that high-frequency electromagnetic disturbs.

Shielded cable earth protective device of the present utility model can also protect cable to avoid undue extruding and influence its electric property at the ground connection place when effectively realizing shielded cable ground connection.

Description of drawings

Fig. 1 is the schematic perspective view of shielded cable earth protective device;

Fig. 2 is the component parts decomposing schematic representation of shielded cable earth protective device among Fig. 1;

Fig. 3 is cable protection folder 5 schematic diagrames that hang on the rubber ring 7;

Fig. 4 is the shielding layer grounding row connection diagram of shielded cable earth protective device of the present utility model and communication cabinet.

Embodiment

Fig. 1 is the schematic perspective view of shielded cable earth protective device, and Fig. 2 is the component parts decomposing schematic representation of shielded cable earth protective device among Fig. 1.As shown in the figure, shielded cable earth protective device of the present utility model comprises U type support 1, location slide plate 2, compressive plate 3, adjustment screw 4, cable protection folder 5 and substrate 6.A plurality of U type supports 1 can be installed on a substrate 6, and U type support 1 adopts bolt to be connected with substrate 6, has provided the situation that two U type supports are installed among the figure, each U type support 1 corresponding location slide plate 2, compressive plate 3 and adjustment screw 4.

Have elongated slot 12 on the both wings of described U type support 1, the flange 31 at compressive plate 3 two ends is stuck in the elongated slot 12 and can slides in elongated slot 12.Elongated slot 12 is divided into the both wings of U type support 1 up and down that two parts are upper bracket 121 and lower carriage 122, and upper bracket 121 and lower carriage 122 pass the oblong aperture 21 and the rectangular groove 22 of location slide plate 2 respectively, and location slide plate 2 can be slided on U type support 1.Have the draw-in groove of one-level at least 11 that is used to locate slide plate 2 location on the described U type support 1, provided an execution mode that adopts 3 grades of draw-in grooves among the figure, how much as required how much coming of the cable of the ground connection of draw-in groove definite.Usually each grade draw-in groove 11 all is included in the upper bracket 121 of U type support 1 both wings and four grooves of lower carriage 122, and the oblong aperture 21 and the rectangular groove 22 of location slide plate 2 are stuck in four draw-in grooves.

Location slide plate 2 adopts with adjustment screw 4 and is threaded, and the head of adjustment screw 4 withstands compressive plate 3, just can regulate the spacing of locating slide plate 2 and compressive plate 3 by rotation adjustment screw 4.On the cable protection folder 5 hook 51 is arranged, hang on the U type support 1, be positioned at the space that compressive plate 3 and U type support 1 constitute by linking up with 51.Cable protection folder 5 is clamped the shielded metal paper tinsel of shielded type cable 8, promotes compressive plate 3 by rotation adjustment screw 4, and pushes down cable protection folder 5, and cable protection folder 5 is contacted with the shielded metal paper tinsel of shielded type cable 8.For convenience the shielded metal paper tinsel of cable protection folder 5 cable protection folder 5 and shielded type cable 8 under the extruding of compressive plate 3 contacts; cable protection folder 5 is designed to elliptical shape; occluded ellipse end at cable protection folder 5 adopts incision design, promptly has a rectangular otch 52.By the pressure of the 3 pairs of cable protections of adjustment screw 4 scalable compressive plates folder 5, cable protection folder 5 is effectively contacted with the shielded metal paper tinsel of shielded type cable 8, the cable of guard shield simultaneously 8 is avoided being subjected to too pushing and is influenced its electric property.

Withstand compressive plate 3 better for guaranteeing adjustment screw 4, particularly stretch out location slide plate 2 when long when adjustment screw 4, in the surperficial slide relative of compressive plate 3, the head of adjustment screw 4 is not provided with protruding axle 41 to the head of adjustment screw 4, and compressive plate 3 is provided with and protruding axle 41 axis holes that are complementary 32.

Before shielded type cable 8 inserts the cable protection folder 5 of earth protective device of the present utility model, the plastic cement protective sleeve of first strip off shielded type cable outside, exposed shielded metal paper tinsel, the general 30mm of length.For making things convenient for the placement of cable protection folder 5 when the plastic cement protective sleeve of strip off shielded type cable outside, on substrate 6, hang a rubber ring 7 that contains a plurality of hanging holes.As shown in Figure 3, Fig. 3 is cable protection folder 5 schematic diagrames that hang on the rubber ring 7, can hang a plurality of cable protection folders on rubber ring 7 simultaneously.

Location slide plate 2 is fixedly the time, location slide plate 2 passes through thread connection with adjustment screw 4, the protruding axle 41 of adjustment screw 4 is limited in the axis hole 32 of compressive plate 3, the flange 31 of compressive plate 3 is in vertical direction is limited in the draw-in groove 11 of U type support 1, so when location slide plate 2 snapped in the draw-in groove 11 of U type support 1 and tighten described adjustment screw 4, described location slide plate 2 was fixed in vertical direction.When needs take out location slide plate 2, only need unscrew adjustment screw 4, just can mention location slide plate 2 in vertical direction easily, and take out above-mentioned location slide plate 2 and adjustment screw 4 along the elongated slot 12 of U type support 1.

When using shielded cable earth protective device of the present utility model to carry out ground protection; the shielded type cable 8 that strips is put into U type support 1; from rubber ring 7, take out cable protection folder 5; clamp the shielded cable that strips with cable protection folder 5; bound fraction is exposed metal forming; again the hook 51 of cable protection folder 5 even shielded type cable 8 by cable protection folder 5 hung on the U type support 1, promote compressive plate 3, and push down cable protection folder 5 by rotation adjustment screw 4.

When utilizing shielded cable earth protective device increase cable of the present utility model to carry out ground protection; unscrew the axis hole 31 that adjustment screw 4 makes that protruding axle 41 on the adjustment screw 4 breaks away from the compressive plates 3 earlier; mention location slide plate 2 and make its elongated slot 12 break away from U type support 1 along U type support 1; elongated slot 12 along U type support 1 takes out compressive plate 3 equally; the shielded type cable 8 that increases newly is put into U type support 1; from rubber ring 7, take out another one cable protection folder 5; clamp the shielded cable that strips with described cable protection folder 5; bound fraction is exposed metal forming; again the hook 51 of described cable protection folder 5 even shielded type cable 8 by described cable protection folder 5 hung on the U type support 1; again along the elongated slot 12 of U type support 1 compressive plate 3 of packing into; location slide plate 2 and adjustment screw 4; promote compressive plate 3 by rotation adjustment screw 4, and push down cable protection folder 5.

Fig. 4 is the shielding layer grounding row connection diagram of shielded cable earth protective device of the present utility model and communication cabinet; the shielded cable earth protective device is connected with the shielding layer grounding row 9 of communication cabinet by substrate 6 realizes the connection of effective ground connection that connected mode can adopt bolt to connect.Provided the execution mode that inserts six roots of sensation shielded cable simultaneously among Fig. 4, the utility model can carry out ground connection to many cables simultaneously.

For making shielded cable earth protective device of the present utility model carry out effective ground connection to shielded cable, U type support 1, location slide plate 2, compressive plate 3, adjustment screw 4, cable protection folder 5 and substrate 6 all adopt metal material, as stainless steel.

Claims

1, a kind of shielded cable earth protective device is characterized in that,

Comprise U type support (1), location slide plate (2), compressive plate (3), adjustment screw (4), cable protection folder (5) and substrate (6);

Have elongated slot (12) on the both wings of described U type support (1), the flange (31) at compressive plate (3) two ends is stuck in the elongated slot (12) and can slides in elongated slot (12);

Have the draw-in groove of one-level at least (11) that is used to locate slide plate (2) location on the described U type support (1), described location slide plate (2) goes up oblong aperture (21) by location slide plate (2) and rectangular groove (22) is stuck on the draw-in groove (11);

Described location slide plate (2) adopts with adjustment screw (4) and is threaded, and the head of adjustment screw (4) withstands compressive plate (3);

On the described cable protection folder (5) hook (51) is arranged, hang on the U type support (1), be positioned at the space that compressive plate (3) and U type support (1) constitute by hook (51);

Described U type support (1) adopts bolt to be connected with substrate (6).

2, shielded cable earth protective device as claimed in claim 1 is characterized in that, also comprises rubber ring (7), and described rubber ring (7) hangs on the substrate (6).

3, shielded cable earth protective device as claimed in claim 1 is characterized in that, the head of described adjustment screw (4) is provided with protruding axle (41), and compressive plate (3) is provided with the axis hole (32) that is complementary with protruding axle (41).

4; shielded cable earth protective device as claimed in claim 3; it is characterized in that; described location slide plate (2) is fixedly the time; location slide plate (2) passes through thread connection with adjustment screw (4); the protruding axle (41) of adjustment screw (4) is limited in the axis hole (32) of compressive plate (3); the flange (31) of compressive plate (3) is in vertical direction is limited in the draw-in groove (11) of U type support (1); so in location slide plate (2) snaps in the draw-in groove (11) of U type support (1) and when tightening described adjustment screw (4), described location slide plate (2) is fixed in vertical direction.

5, shielded cable earth protective device as claimed in claim 1 is characterized in that, described cable protection folder (5) is an elliptical shape, and the occluded ellipse end of described cable protection folder (5) has a rectangular otch (52).

6, shielded cable earth protective device as claimed in claim 1 is characterized in that, described U type support (1), location slide plate (2), compressive plate (3), adjustment screw (4), cable protection folder (5) and substrate (6) are stainless steel material.