CN2593427Y

CN2593427Y - Tunnel distribution box

Info

Publication number: CN2593427Y
Application number: CN 02261528
Authority: CN
Inventors: 陈本仁
Original assignee: Shanghai Danuoer Electrical Equipment Engineering Co ltd
Current assignee: Danol Electric (Group) Co., Ltd.
Priority date: 2002-11-13
Filing date: 2002-11-13
Publication date: 2003-12-17
Anticipated expiration: 2012-11-13

Abstract

The utility model relates to a tunnel distribution box. Inner surfaces of a box body and a box cover are uniformly provided with equal reinforcing ribs, and a built-in mounting hole is arranged in the box body. The box cover is tightened by an anti-theft screw bolt after closed, and the head of the screw bolt is provided with a hexagon socket hole. The center of the hole is provided with a locking pin which is provided with an opening key. The circumference of the box cover is provided with a rectangular groove, in which an elastic sealing ring with the performances of high temperature resistance, low temperature resistance and oil gas resistance is embedded. The box body and the box cover of the utility model firstly adopt an aluminium-silicon alloy light metal material which is formed in one piece to a thin wall casing shape, and the inner surfaces are uniformly provided with equal reinforcing ribs for support, so that good rigidity and strength can be ensured. Secondly, the built-in mounting hole are arranged in the box body, if the box cover is not opened, the teardown can not be conducted, and thus the antitheft safety is enhanced. Thirdly, the interior of the rectangular groove arranged at the surrounding of the box cover is embeded with the sealing ring which is temperature-resistant, oil gas resistant and corrosion resistant, and when the box cover is cloased, the sealing level can be reach by IP 65. Finally, the box cover is tightened by the anti-theft screw bolt after closed, the box cover can only be opened by a special purpose key with fitted size, and thus the antitheft security is enhanced.

Description

A kind of tunnel distribution box

One, technical field

The utility model relates to the distribution box of a kind of tunnel illumination, electric distribution.

Two, technical background

Existing tunnel distribution box form has three kinds: first adopts steel plate or aluminium sheet to weld after bending or rivet and make casing, case lid, and forms in oil surface lacquer back; Second adopts the assorted aluminium or the pig iron to carry out casting, forms behind the surperficial spray paint; The 3rd adopts the engineering plastics injection moulding and forms.Though first, second kind casing and case lid have certain mechanical strength, manufacture craft is comparative maturity also, but structure heaviness, poor sealing performance, after installing at tunnel, culvert, underground structure wall, because of ambient temperature height, corrosive gas concentration are big, humidity changes greatly, vibratility waits factor greatly, after short-term is used, casing (lid) corrosion seriously, the mechanical strength reduction, influence in-box electric appliance element operate as normal, reduce useful life.Though the third casing and case lid have higher antiseptic property, mechanical strength is very poor, material easily wears out, be subject to the variation of ambient temperature and be out of shape, and useful life is shorter.

Three, the utility model content

The purpose of this utility model is to provide a kind of light weight, mechanical strength height, good rigidly, good seal performance, the distribution box that is used for tunnel illumination, dynamic Control that corrosion resistance is strong.

A kind of tunnel provided by the utility model distribution box comprises casing and case lid, it is characterized in that: casing and case lid are the thin-walled shell mould parts of being made by alusil alloy die casting, and its inner surface is provided with the reinforcement of even equivalent; Built-in installing hole is set in casing; The case lid back of closing is fastening by anti-theft bolt, and this bolt head is inner hexagonal hole, and there is lock pin at the center, hole, and is furnished with the key of unlatching; The case lid periphery is provided with rectangular channel, the elastic seal ring of embedded high-low temperature resistant, oil resistant gas performance.

Owing to adopted above-mentioned technical solution, the utility model tunnel distribution box, at first adopt the alusil alloy light metal material, inject metal die through HTHP, reach case lid, casing die casting one-shot forming, and adopt the thin-walled shell structure, be provided with the reinforcement support of even equivalent by the periphery of casing, case lid, thereby guaranteed good rigidity and intensity; Secondly, built-in installing hole is set in casing,, has therefore improved anti-theft security if not opening case lid just can not dismantle; Moreover, setting-in heatproof, oil resistant gas, corrosion resistance sealing ring in the rectangular channel of case lid periphery, after case lid covered, the sealing grade can reach IP65; At last, have anti-theft bolt fastening after case lid closes, the special-purpose key that has only size to match just can be opened case lid, has improved anti-theft security.

Four, description of drawings

Fig. 1 is a stereochemical structure decomposing schematic representation of the present utility model;

Fig. 2 is the utility model structural representation;

Fig. 3 is the structural representation that the utility model is equipped with special-purpose key;

Fig. 4 is the structural representation of the utility model anti-theft bolt.

Five, embodiment

As shown in Figure 1, the utility model tunnel distribution box, the shape of its casing 1 and case lid 2 and structure construction are to inject in the steel mould of making by the geometry in particular size one-time formed by molten molten alusil alloy high pressure successively, the reinforcement 11 that the casing 1 of moulding and the inner surface of case lid 2 have even equivalent supports, not only has high dimension precision, and have hard surface, the metallographic structure of refinement, improved mechanical strength, rigidity and the shock resistance of member greatly.

The periphery of case lid 2 is provided with rectangular seal groove 7, the elastic seal ring 5 of embedded high-low temperature resistant, oil resistant gas performance, and after case lid covered, the water proof and dust proof grade was IP65.

Be provided with three built-in installing holes 12 in the casing 1, fixing by steel setscrew 6, if not opening case lid 2 just can not remove and install nut 8, improved anti-theft security.

Referring to Fig. 2, Fig. 3 and Fig. 4, after closing, case lid 2 have anti-theft bolt 3 fastening, and bolt head is an inner hexagonal hole, and there is dome pin 31 at the center, hole, and the special-purpose key 4 that has only size to match just can be opened case lid.Anti-theft bolt 3 and special-purpose key 4 are to be processed into through cold stamping.

Distribution box is after pickling, oil removing, cleaning, and the electrostatic powder plastic-blasting is handled, and reaches anti-deep-etching F2 level performance requirement.

Claims

1. a tunnel distribution box comprises casing and case lid, it is characterized in that:

Casing and case lid are the thin-walled shell mould parts of being made by alusil alloy die casting, and its inner surface is provided with the reinforcement of even equivalent;

Built-in installing hole is set in casing;

The case lid back of closing is fastening by anti-theft bolt, and this bolt head is inner hexagonal hole, and there is lock pin at the center, hole, and is furnished with the key of unlatching;

The case lid periphery is provided with rectangular channel, the elastic seal ring of embedded high-low temperature resistant, oil resistant gas performance.