CN201893536U

CN201893536U - Cable branch box

Info

Publication number: CN201893536U
Application number: CN2010206501241U
Authority: CN
Inventors: 兰桂刚; 刘明清; 卓克勤; 黄秋胜
Original assignee: GUANGDONG AERPAI ELECTRIC POWER TECHNOLOGY CO LTD
Current assignee: GUANGDONG AERPAI ELECTRIC POWER TECHNOLOGY CO LTD
Priority date: 2010-12-09
Filing date: 2010-12-09
Publication date: 2011-07-06
Anticipated expiration: 2020-12-09

Abstract

The utility model discloses a cable branch box. The cable branch box comprises a box body, wherein a sleeve and a T-shaped plug plugged into and fixed on the sleeve are built in the box body; an incoming cable and an outgoing cable which are accessed into the box body are respectively connected to the T-shaped plug; the incoming cable sequentially passes through the sleeve and the T-shaped plug, which are mutually sleeved, to be connected with the outgoing cable to form a tap circuit; the sleeve is a branch sleeve with at least three inlet and outlet jacks; a grounding device is plugged into and fixed by at least one inlet and outlet jack. The cable branch box can satisfy various grounding requirements, has promoted safety performance and a small size, is suitable for various environments with extreme weather, is convenient to operate, and has strong expansibility and wide market application range.

Description

A kind of cable branch box

Technical field

The utility model relates to the urban electricity supply field, relates in particular to the cable branch box structure that has earthing device in a kind of urban electricity supply.

Background technology

At present, the urban electricity supply network mainly adopts the ring network power supply pattern.The ring network power supply pattern can improve the reliability of power supply, and the user can obtain power supply from two ends, the power failure area of minimizing accident; Cable branch box 9 is exactly the medium-voltage equipment that is used for ring network power supply, and bilateral sleeve pipe 91 and T type plug 92 are its two cores equipment, realizes shunt current by bilateral sleeve pipe 91 and T type plug 92.

As shown in Figure 1, be the structural representation of a kind of cable branch box of the prior art, it is by casing 93 and T type plug 92(94) form; Bilateral sleeve pipe 91 is equipped with in casing 93 the insides; High-tension current by the inlet wire cable to T type plug 92(94), by T type plug 92(94) to bilateral sleeve pipe 91, again by bilateral sleeve pipe 91 to T type plug 92(94), then by T type plug to the outlet cable; Can connect many cover T type plugs on one group of bilateral sleeve pipe 91, thereby realize the multichannel tap, there is the certain structure design defect in this cable branch box owing to do not design the major loop ground structure, when interruption maintenance, fracture texture is not set in the cable branch box is used for major loop ground connection.

The utility model content

Technical problem to be solved in the utility model is, a kind of cable branch box is provided, and can satisfy multiple grounding requirement, has promoted security performance; Volume is little, is applicable to multiple extreme climate environment, simple operation, and autgmentability is strong, and market is widely used.

In order to solve the problems of the technologies described above, embodiment of the present utility model provides a kind of cable branch box, comprise casing, built-in sleeve pipe of described casing and grafting are fixed on the T type plug on the described sleeve pipe, the inlet wire cable and the outlet cable that insert in the described casing are connected to described T type plug respectively, the described inlet wire cable described sleeve pipe by mutual socket successively links to each other with described outlet cable with described T type plug and forms the tap loop, it is characterized in that, described sleeve pipe is the shunt sleeve pipe, described shunt sleeve pipe has three tunnel turnover line sockets at least, and at least one road turnover line socket is pegged graft and fixed an earthing device.

Preferably, described shunt sleeve pipe is " Y " type, and one road turnover line socket is pegged graft and fixed described earthing device.

Described earthing device is socket dead earth plug and conductive plug respectively, and when described cable branch box was in running order, peg graft on the described shunt sleeve pipe fixing described ground pin and described conductive plug were hermetically enclosed.

Preferably, described earthing device comprises that also salable sealing is arranged on the blocking and the sealing cap of described ground pin and described conductive plug openend.

Described earthing device is socket dead earth plug and conductive plug respectively, and when described cable branch box was in inspecting state, described shunt sleeve pipe was provided with ground connection.

Preferably, described earthing device also comprises the earth rod that is connected with described conductive plug, and described earth rod is connected with the ground connection copper bar by earth connection.

Preferably, described conductive plug is hermetically sealed silicon rubber plug.

A kind of cable branch box that the utility model embodiment is provided, because sleeve pipe is the shunt sleeve pipe, sleeve pipe has three tunnel turnover line sockets at least along separate routes, and at least one road turnover line socket is pegged graft and is fixed an earthing device, make the turnover line loop of cable branch box expand to ten multichannels from two the tunnel, combination is flexible, and can satisfy multiple grounding requirement; Because earthing device adopts all insulation, hermetic structural design, has promoted security performance; Volume is little, is applicable to multiple extreme climate environment, simple operation, and autgmentability is strong, and market is widely used.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the structural representation of cable branch box of the prior art;

Fig. 2 is the structural representation of the cable branch box of the utility model embodiment under in running order;

Fig. 3 is the structural representation under the cable branch box ground state of the utility model embodiment.

Embodiment

Below with reference to accompanying drawing preferred embodiment of the present utility model is described.

In conjunction with referring to Fig. 2, shown in Figure 3, a kind of cable branch box that the utility model embodiment is provided, comprise casing 1, described casing 1 built-in sleeve pipe 2 and grafting are fixed on the T type plug 3 on the described sleeve pipe 2, the inlet wire cable and the outlet cable that insert in the described casing 1 are connected to described T type plug 3 respectively, described inlet wire cable is connected with described outlet cable by described sleeve pipe 2 and described T type plug 3 successively and forms the tap loop, described sleeve pipe 2 is a shunt sleeve pipe 20, described shunt sleeve pipe 20 has three tunnel turnover line sockets 202 at least, and at least one road turnover line socket 202 is pegged graft and fixed an earthing device 4.

Casing 1 is the rectangular shape body structure of hollow, its built-in shunt device components, and in the present embodiment, the overall dimension of casing is set to 580*910*1000CM.Certainly, the concrete size of casing 1 can be adjusted according to the quantity and the size of built-in shunt components and parts, be advisable to arrange compactness, simultaneously, the casing of present embodiment is the environmental protection design of anticorrosion, dustproof, moistureproof nontoxic pollution-free, to guarantee daily operation and outdoor extreme climatic environment.

But sleeve pipe 2 is to be used for the different plugs of tap to form the socket shunt structure in many turnover loop, in the present embodiment, sleeve pipe 2 is designed to have the bifurcating box tubular construction of three tunnel turnover line loops, it is designed to " Y " type, its left side as shown in the figure has one tunnel turnover line socket, right side as shown in the figure has two tunnel turnover line sockets, left side one tunnel turnover line socket is pegged graft successively and is fixed first plug 31 and second plug 32, in two tunnel turnover line sockets that the right side has, have at least one tunnel turnover line socket 202 to peg graft and fix an earthing device 4, that is to say two tunnel turnover line sockets on right side peg graft respectively dead earth device 4 and T type plug 3.

Be understandable that, the utility model does not limit the quantity of the turnover line socket that sleeve pipe 2 had, it can be the sleeve structure that a plurality of plugs of tap form a plurality of turnover loop, can have three the tunnel, the four road or more pass in and out the line socket as its right side, have at least one tunnel turnover line socket grafting dead earth device can make cable branch box ground connection as long as satisfy.

Earthing device 4 is socket dead earth plug 41, conductive plug 42, blocking 46 and sealing cap 47 respectively, described blocking 46 and described sealing cap 47 are hermetically enclosed with the openend of the described ground pin 41 of described earthing device 4 and described conductive plug 42, when cable branch box was in running order, peg graft on a road of the sleeve pipe 20 turnover line socket 202 along separate routes fixing described ground pin 41 and described conductive plug 42 were provided with sealing.Concrete, when blocking 46 and sealing cap 47 insert the openend of stating ground pin 41 and conductive plug 42 successively, blocking 46 stops up ground pin 41, sealing cap 47 is with this openend sealing, so far, high-tension current is being entered sleeve pipe 20 along separate routes through inlet wire cable to the first plug 31 or second plug 32 by first plug 31 or second plug 32, specifically can be the T type plug 3 on first plug 31, second plug 32 or shunt sleeve pipe 20 right sides through T type plug 3(by shunt sleeve pipe 20 then) to the outlet cable.

Preferably, described conductive plug 41 is hermetically sealed silicon rubber plug.

Earthing device 4 also comprises the earth rod 43 that is connected with described conductive plug 41, earth rod 43 is connected with ground connection copper bar 45 by earth connection 44, when cable branch box is in the interruption maintenance state, need carry out ground connection to major loop, at this moment, earth rod 43 can be fixed on one tunnel turnover line socket 202 of sleeve pipe 20 along separate routes and link to each other with described conductive plug 41, owing to earth rod 43, earth connection 44 and ground connection copper bar 45 are connected successively, earth rod 43 is finished each loop ground connection by earth connection 44.

A kind of cable branch box that the utility model embodiment is provided in the specific implementation, when cable branch box was in running order, peg graft on a road of the sleeve pipe 20 turnover line socket 202 along separate routes fixing described ground pin 41 and described conductive plug 42 were provided with sealing.Concrete, when blocking 46 and sealing cap 47 insert the openend of stating ground pin 41 and conductive plug 42 successively, blocking 46 stops up ground pin 41, sealing cap 47 is with this openend sealing, so far, high-tension current is through inlet wire cable to the first plug 31 or second plug 32, entered sleeve pipe 20 along separate routes by first plug 31 or second plug 32, then by shunt sleeve pipe 20 through T type plug 3 to the outlet cable; When cable branch box is in the interruption maintenance state, take off sealing cap 47 and blocking 46 on the ground pin 41, earth rod 43 is fixed on one tunnel turnover line socket 202 of sleeve pipe 20 along separate routes and links to each other with described conductive plug 41, because earth rod 43, earth connection 44 and ground connection copper bar 45 are connected successively, earth rod 43 is realized the major loop reliable ground by earth connection 44.

The cable branch box that the utility model embodiment is provided, because sleeve pipe is the shunt sleeve pipe, sleeve pipe has three tunnel turnover line sockets at least along separate routes, and at least one road turnover line socket is pegged graft and is fixed an earthing device, make the turnover line loop of cable branch box expand to ten multichannels from two the tunnel, combination is flexible, and can satisfy multiple grounding requirement; Because earthing device adopts all insulation, hermetic structural design, has promoted security performance; Volume is little, is applicable to multiple extreme climate environment, simple operation, and autgmentability is strong, and market is widely used.

Above disclosed only is the utility model preferred embodiment, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.

Claims

1. cable branch box, comprise casing, built-in sleeve pipe of described casing and grafting are fixed on the T type plug on the described sleeve pipe, the inlet wire cable and the outlet cable that insert in the described casing are connected to described T type plug respectively, the described inlet wire cable described sleeve pipe by mutual socket successively links to each other with described outlet cable with described T type plug and forms the tap loop, it is characterized in that, described sleeve pipe is the shunt sleeve pipe, described shunt sleeve pipe has three tunnel turnover line sockets at least, and at least one road turnover line socket is pegged graft and fixed an earthing device.

2. cable branch box as claimed in claim 1 is characterized in that, described shunt sleeve pipe is " Y " type, and one road turnover line socket is pegged graft and fixed described earthing device.

3. cable branch box as claimed in claim 1 or 2, it is characterized in that, described earthing device is socket dead earth plug and conductive plug respectively, and when described cable branch box was in running order, peg graft on the described shunt sleeve pipe fixing described ground pin and described conductive plug were hermetically enclosed.

4. cable branch box as claimed in claim 3 is characterized in that, described earthing device comprises that also salable sealing is arranged on the blocking and the sealing cap of described ground pin and described conductive plug openend.

5. cable branch box as claimed in claim 1 or 2 is characterized in that, described earthing device is socket dead earth plug and conductive plug respectively, and when described cable branch box was in inspecting state, described shunt sleeve pipe was provided with ground connection.

6. cable branch box as claimed in claim 5 is characterized in that described earthing device also comprises the earth rod that is connected with described conductive plug, and described earth rod is connected with the ground connection copper bar by earth connection.

7. as claim 4 or 6 described cable branch box, it is characterized in that described conductive plug is hermetically sealed silicon rubber plug.