CN2152969Y - Miner's lamp with double light bulbs - Google Patents

Abstract

The utility model relates to a miner's lamp with double light bulbs, comprising an auxiliary light source (8) fixed in a lamp casing (11) by a flaky bridge support (26) and controlling the parallel branch of the main and the auxiliary light sources (4 and 8) by switches of the independent sealing transfer contacts (17, 20 and 22). The main light sources (4) still uses an explosion-proof power-off mechanism (3). The miner's lamp can provide the reserve light source for emergency and can also be used as the power-saving conversion working light source, so the utility model has the advantages of simple structure and strong versatility of the light source and is suitable for the mining explosion-proof requirement.

Description

Miner's lamp with double light bulbs

The utility model belongs to mining lighting apparatus, relates generally to the improvement of existing miners' cap with lamp.

Known mariages mine lamp can in time be devoted oneself to work when main filament damages, and keeps illumination, but then can't work on when bulb damages, and its structure fabrication is all complicated, and cost is higher.Two bulb sources work on after providing main bulb to damage, and are applied widely than two-filament bulb, and cost of use reduces; Need consider explosion-proof and structure problem again but use in Minepit environment, the end sees that the product that is enough to be suitable for emerges in producing at present.

The purpose of this utility model is the organization plan that proposes to satisfy the two mining lamps of bulb of mining standard.

The purpose of this utility model is to realize like this, the mining lamp of two bulbs comprises shell of lamp base, seal the lamp surface glass that links, also forms seal chamber with it with housing edge portion, the light source of in annular seal space, fixing, light reflector links with circuit of light sources, the explosion-proof power cutoff mechanism of cutting off the power supply immediately when glass breakage, connect the lead of bulb, power cutoff mechanism control piece and power supply, and be connected and fixed and the annex that seals relevant parts.Simultaneously, used secondary light source one end is with contact connecting mode and power turn-on, the explosion-proof power cutoff mechanism Elastic Contact conducting of the other end of secondary light source and main light source, thus constitute the secondary light source loop in parallel with the main light source circuit; Also be provided with the switch of control two light source parallel branch conductings simultaneously, the contact of switch places in the mine lamp annular seal space, and the control knob and the housing seal of contact link.Switch can be realized the break-make control of major-minor two parallel branches like this, secondary light source two ends are all contact conducting connection can guarantee to form path, can when lamp surface glass is damaged, disengage admittedly and the assurance explosion-proof effect in time that cuts off the power supply again, the obvious applicable ordinary light source of this programme, be to use and bring convenience, can when a light source failure, keep illumination again, reduce the situation that has lamp not work, the utility model purpose is achieved.

The above-mentioned secondary light source of the utility model is to be fixed in the housing through the thin slice bridge architecture, and sheet thickness should make its intensity be starkly lower than secondary light source bulb, and secondary light source and power cutoff mechanism link to hold to change into power supply and fixedly link.Like this, in the lamp surface glass breakage.But when secondary light source was jeopardized at the end, though power cutoff mechanism is cut off the power supply main light source immediately, and the branch road of secondary light source still can conducting, as long as environment allows, twist switch can make secondary light source works, uses to satisfy having under the occasion of service condition, thereby has enlarged the scope of application of this mine lamp.If damaged unexpected situation also influences to secondary light source, this moment is at first ruined should to be the bridge-type thin slice, and the end that secondary light source contact links promptly disengages and can play the outage explosion-proof.

The place, contact of the secondary light source thin slice of above-mentioned the utility model bridge-type fixed solution switch also is provided with sealing and contains the sealing shroud of switch contact, sealing shroud and mine lamp housing also for sealing and fixing connects, and the contact branch is located at the mating surface place of sliding pair.Like this, switch contact uses and to conform to requirement of explosion proof, after the lamp surface glass breakage, as long as secondary light source can conducting work, just may become the alternative scheme of relief property.

The utility model is set up simple structure in common mine lamp, satisfying under the anti-explosion safety requirement, strengthened the adaptive capacity of mine lamp, improved the reliability of mine lamp illumination, the light source of two kinds of different capacities also is provided for the mine lamp operate as normal simultaneously contingency, fault.

Accompanying drawing has provided the signal of the utility model embodiment.

Fig. 1 is two light source as miner light structural representations;

The secondary light source fixing structure diagrammatic sketch of Fig. 2;

Fig. 3 is two kinds of on line mode electrical schematic diagrams;

Fig. 4 is a switch contact hermetic unit structural diagrams;

Fig. 5 is that the A of Fig. 4 is to view;

Fig. 6 is the right view of chassis 18 parts among Fig. 4;

Fig. 7 is the side view of rotary switch axle 19 among Fig. 4, negative pole contact pin 20, capstan 21.

Among the figure: 1, rotary switch 2, main bubble switch shrapnel 3, main bubble spring base 4, main bulb 5, positive contact 6, lamp surface glass 7, anodal line 8, secondary bulb 9, secondary bubble tube face 10, secondary bubble switch shrapnel 11, lamp head shell 12, screw 13, hatpin 14, lamp head ring 15, reflector 16, loam cake 17, main bubble contact chip 18, chassis 19, rotary switch axle 20, negative pole contact chip 21, switch capstan 22, secondary bubble contact chip 23, packing ring (negative line in flakes) 24, contact sleeve 25, holding screw 26, bridge support.

The utility model is described in further detail below in conjunction with embodiment.

First embodiment is for being provided with a secondary light source 8, linking through shell fragment 10, switch 1 and power supply outside the lamp housing at existing mine lamp reflector 15 upper portion side wall positions; Secondary light source end in addition links through shell fragment 5 and main light source respective end.Main light source is bearing on the elastic shelf 3, link with secondary light source, and through lead and power supply UNICOM, end also links with power supply through shell fragment 2, switch 1 in addition.

During operate as normal switch is placed the main bulb conduction position, can throw light on.When not high or main filament is disconnected when lighting requirement, then switch can be placed secondary bulb 8 conduction positions, still can keep illumination.When lamp surface glass 6 was broken, king light elastic shelf 3 was upspring because of the assembling pressure that loses lamp surface glass 6, make king light 4 and its shell fragment 2 and all disengage with shell fragment 5 that secondary lamp links, circuit is cut off, and can't continue energising work, meet mine and use regulation.

Second embodiment also is in existing mine lamp, with the first side same area secondary bulb 8 is set, but itself and main bulb 4 respective end are fixedly connected shown in dotted line among Fig. 37.A secondary bulb and a thin slice 26 fixedly link, and are fixed on the bearing 9 on the housing by the thin slice two ends.All the other are all together routine with first.Also by the break-make of switch 1 control major-minor two parallel branches, work alone during work; When the lamp surface glass breakage, when main bulb 4 cuts off the power supply the outage of explosion-proof mechanism by it,, under the condition that environment allows, then can connect secondary bulb branch road by switch 1 if secondary bulb branch road is not destroyed.This is the standby effect of secondary bulb.If secondary bubble 8 is careful external force effects, because of its type selecting less, so intensity is higher; And with thin slice 26 supportings, so deformation failure then at first occurs on the thin slice 26, make the bulb tail end break away from the shell fragment 10 that contact with it links, circuit is blocked.This is the effect situation of secondary bulb power-off protection structure.Certainly if destroy when making the positive and negative terminal short circuit, then the fuse of original equipment can make circuit block.

The 3rd embodiment is on the second embodiment basis, is provided with the chassis 18 of sealing and fixing with it in lamp housing 11, and its mating surface is a square column type, and chassis 18 end face in addition is equipped with loam cake 16 and is sealed and matched with it, and forms annular seal space.Between loam cake, chassis, also be equipped with and its sealing cylinder capstan 21 movingly, have through hole to cooperate with switching knob axle 19 at loam cake, center chassis, be shaped on axial plane at the axle leading portion, respective shapes is also made in the capstan hole, the axle 19 ends by pad 23, sleeve 24, screw 25 axial location.On chassis 18, be shaped on two contacts 17,22 and link through lead and major and minor light bubble respectively, contact 20 is housed on capstan 21 links, join through lead and power cathode with packing ring 23.All the other structures are identical with second side.

When the damaged and secondary bulb of lamp surface glass was not damaged, then the switch connection power supply that can be sealed by this example play the effect of spare bulb.Certainly when operate as normal, also can change the light source of illumination by turning knob 19.

Claims (3)

1, the mining lamp of two bulbs belongs to mining light source, and it comprises shell of lamp base, seals with housing edge portion to link, and forms the lamp surface glass of seal chamber with it; The light source of in annular seal space, fixing, light reflector, explosion-proof power cutoff mechanism with control circuit of light sources break-make, connect light source, the lead of power cutoff mechanism control piece and power supply, and be connected and fixed and the annex that seals relevant parts, it is characterized in that used secondary light source (8) links with power cutoff mechanism control point parts (5) and power supply respective end (10) respectively with the contact connecting mode, constitute the current loop in parallel with the main light source circuit, it is main to be provided with control simultaneously, the switch (1) of secondary circuit of light sources break-make, the contact of switch is positioned at annular seal space, control knob and housing (11) keep sealing movingly.

2, the mining lamp of two bulbs belongs to mining light source, and it comprises shell of lamp base, seals with housing edge portion to link, and forms seal chamber and lamp surface glass with it; The explosion-proof power cutoff mechanism of fixing light source, light reflector and control circuit of light sources break-make in annular seal space, the lead that connects light source, power cutoff mechanism control piece and power supply, and be connected and fixed and the annex that seals relevant parts, it is characterized in that used secondary light source (8) is fixed on the bearing (9) that links with housing through thin slice (10), the one end links with the way of contact (11) and power supply one end, the other end and power supply fixedly link (7), constitute the current loop in parallel with the main light source circuit; The switch (1), the contact of switch that are provided with the major and minor circuit of light sources break-make of control simultaneously are positioned at annular seal space, and its control knob and housing (11) keep sealing movingly.

3, mining lamp as claimed in claim 2 is characterized in that also being provided with the cover (16,18), this cover and the shell (11) that contain the control contact and fixedly links, and links movingly with switch control knob (19) sealing.

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