CN201165203Y

CN201165203Y - Ground extractor

Info

Publication number: CN201165203Y
Application number: CNU200820062169XU
Authority: CN
Inventors: 余旭东; 代勇; 陈国清
Original assignee: SANGLAITE SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: SANGLAITE SCIENCE AND TECHNOLOGY Co Ltd
Priority date: 2008-02-14
Filing date: 2008-02-14
Publication date: 2008-12-17
Anticipated expiration: 2018-02-14

Abstract

The utility model provides a grounding lead-out device and discloses a grounding lead-out device used for the ground grid of the railway traffic system. The utility model aims to provide a grounding lead-out device which has the advantages that the ground lead-out device can be waterproof effectively and satisfy the stray-current protective requirement when the subway station power device grounding, the signal device grounding and the lightning grounding are connected with the composite grounding grid. The purpose of the grounding lead-out device is realized through the technical proposal as follows: the grounding lead-out device comprises a protective cylinder, a lead-out bus threaded through the interior of the protective cylinder and the insulative filling material filled in the hollow part of the protective cylinder; the grounding lead-out device also comprises a water-stop ring welded on the external wall of the metal protective cylinder in the sealing form. The grounding lead-out device is mainly applicable to the subway grounding grids.

Description

A kind of ground connection ejector

Technical field

The utility model relates to a kind of ground connection ejector, particularly a kind of being used at the used ground connection ejector of underground grounded screen.

Background technology

In the subway ground system, because the stray current requirement of shelter, grounding lattice is positioned at below its structure base plate, so during the electrical equipment ground connection of subway platform, must be connected the realization reliable ground by down conductor with grounding lattice.Normally directly from the structure base plate, drew down conductor in the past or drew down conductor by pvc pipe.Adopt this measure, occur out of reach stray current requirement of shelter easily, earthing water oozes out from ground outlet easily, the designing requirement of out of reach subway.

The utility model content

The purpose of this utility model provides and a kind ofly can be implemented in subway platform electrical equipment ground connection, can prevent effectively when signalling set earthing and lightning protection ground connection is connected with the integrated ground net that earthing water from oozing out, and can well reach the ground connection ejector of stray current requirement of shelter.

The purpose of this utility model realizes by following technical proposal: a kind of ground connection ejector; comprise the protection tube, pass the insulation filling material that protection tube in-to-in is drawn bus, is filled in protection tube hollow space, also comprise the waterstop ring of tight weld on the protection drum outer wall.

Also comprise the insulation set collar that is fixed in protection tube inwall, draw the middle part that bus passes the insulation set collar, and captive joint with it.

Also comprise and wrap up the pyrocondensation belt of drawing bus.

Also comprise the fixed block that is fixedly connected on the protection tube lower inner wall.

Also comprise the piezometer ring that is positioned on two end faces of protection tube.

Also comprise the antitheft button that is welded on the outer wall of protection tube top.

When the utility model is constructed ground connection, press the special-purpose ground connection ejector of subway upward arrow label direction and place, lower end of the present utility model is drawn bus and is linked to each other with grounding lattice, and the protection tube bottom is positioned under the structure base plate orlop, and among bed course; Protection tube upper end go out the civil engineering plane of structure a little, ground connection is drawn the bus upper end and is connected with ground connection termination case by down lead.By the setting of waterstop ring, make that whole device and civil engineering structure are complete to combine, reach water repellant purpose.

From said structure feature of the present utility model as can be seen its advantage be to play the ground outlet function, can also well reach the stray current requirement of shelter, and by structure design of the present utility model, can also play the effect that prevents ground water seepage.

Description of drawings

Fig. 1 is a structure cross-sectional schematic of the present utility model

Reference numeral wherein: the 1st, protection tube 2 is that waterstop ring 3 is that insulation set collar 4 is that fixed block 5 is that to draw bus 6 be that insulation filling material 7 is that pyrocondensation belt 8 is that piezometer ring 9 is antitheft buttons

The specific embodiment

The utility model will be further described below in conjunction with accompanying drawing:

Embodiment 1:

As shown in Figure 1, a kind of ground connection ejector comprises protection tube 1, passes the insulation filling material 6 that protection tube 1 in-to-in is drawn bus 5, is filled in protection tube 1 hollow space, also comprises the waterstop ring 2 of tight weld on protection tube 1 outer wall.

Also comprise the insulation set collar 3 that is fixed in protection tube 1 inwall, the middle part of insulation set collar 3 with draw bus 5 and captive joint.

Also comprise and wrap up the pyrocondensation belt 7 of drawing bus 5.

Also comprise the fixed block 4 that is fixedly connected on protection tube 1 lower inner wall.

Also comprise the piezometer ring 8 that is positioned on 1 two end faces of protection tube.

Also comprise the antitheft button 9 that is welded on the protection tube 1 top outer wall.

The described bus 5 of drawing is by actual demand, two ends respectively reserve 1 mouthful in protection tube a little.During the ground connection construction, press the special-purpose ground connection ejector of subway upward arrow label direction and place, the earth system lower end is drawn bus 5 and is linked to each other with grounding lattice, and protection tube 1 bottom is positioned under the structure base plate orlop, among bed course; Protection tube upper end go out the civil engineering plane of structure a little, ground connection is drawn the bus upper end and is connected with ground connection termination case by down lead.

Claims

1, a kind of ground connection ejector; comprise protection tube (1), pass the insulation filling material (6) that protection tube (1) in-to-in is drawn bus (5), is filled in protection tube (1) hollow space, it is characterized in that also comprising the waterstop ring (2) of tight weld on protection tube (1) outer wall.

2, a kind of ground connection ejector according to claim 1 is characterized in that also comprising the insulation set collar (3) that is fixed in protection tube (1) inwall, draws bus (5) and passes on the middle part and fixed insulation set collar (3) of insulation set collar (3).

3, a kind of ground connection ejector according to claim 1 and 2 is characterized in that also comprising that parcel draws the pyrocondensation belt (7) of bus (5).

4, a kind of ground connection ejector according to claim 3 is characterized in that also comprising the fixed block (4) that is fixedly connected on protection tube (1) lower inner wall.

5, a kind of ground connection ejector according to claim 4 is characterized in that also comprising the piezometer ring (8) that is positioned on (1) two end face of protection tube.

6, a kind of ground connection ejector according to claim 5 is characterized in that also comprising the antitheft button (9) that is welded on the outer wall of protection tube (1) top.