CN2342464Y

CN2342464Y - Push type fuse core protector

Info

Publication number: CN2342464Y
Application number: CN 98227731
Authority: CN
Inventors: 张礼扬
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-08-31
Filing date: 1998-08-31
Publication date: 1999-10-06
Anticipated expiration: 2008-08-31

Abstract

The utility model relates to a push type fuse core protector, comprising a case, a wiring terminal, a backup fuse core, a working fuse core and a push type fuse core replacing mechanism composed of a push rod, a push rod restoring spring, a push rod groove, a core inlet groove, a core storing bin, a prepared fuse core elastic bracket and a working fuse core elastic clamping seat. The fuse cores can be quickly and conveniently replaced without disassembling a fuse box seat. The utility model has the advantages of high safety, enclosed construction adopted by a fuse core box, good corrosion-proof, water-proof and explosion-proof performances, small size and convenient installation. The utility model is suitable for using in adverse environments.

Description

Pushing-type fusible core protector

The utility model relates to a kind of circuit overcurrent fuse protecting device, particularly a kind of pushing-type fusible core protector.

At present, commercially available overcurrent protective device is fusible core (silk) box, seat etc., and general the employing pegged graft or rotation mode replacing fusible core, must open cassette holder, and the contact fusible core is changed fusible core and not only bothered, and needs just can guarantee safety by electrician specialty personage implementation and operation.Behind fuse opening, also without any status indicator, make troubles on the fuse cassette holder to maintenance.

The purpose of this utility model is, overcomes the shortcoming of above-mentioned fusible core box, seat, and a kind of convenient and safe pushing-type fusible core protector of fusible core of changing is provided.

The purpose of this utility model is achieved through the following technical solutions: a kind of pushing-type fusible core protector, its composition comprises housing, binding post, fusible core, it is characterized in that having by push rod, the push rod return spring, the push rod groove, advance the core groove, core storing storehouse, preparation fusible core elastic bracket, the pushing-type fusible core that work fusible core elastic clamp seat is formed is converting mechanism more, push rod inserts the push rod groove by the push-rod hole on the housing, the push rod front has alignment pin, has the alignment pin chute on the push rod groove cover plate, the push rod return spring is installed on the reference column, one end connects the push rod alignment pin, one end connects spacing pillar, advancing the core groove is positioned on the push rod proceeds posterolateral housing, core storing storehouse is positioned at the push rod back, its upper end with advance the core groove and be communicated with, its lower end outlet is positioned at the push rod below, and preparation fusible core elastic bracket is by supporting plate, the supporting plate fulcrum, return spring, the spacing pillar of return spring is formed, and is positioned at outlet both sides, core storing storehouse lower end, work fusible core elastic support is fixedlyed connected with binding post, has on the housing base and the corresponding outlet of work fusible core.

With reference to the accompanying drawings and in conjunction with the embodiments the utility model is described in detail.

Fig. 1 removes overall structure schematic diagram behind housing cover and the push rod groove cover plate for the utility model.

Fig. 2 is the A-A cut-away view of Fig. 1.

As depicted in figs. 1 and 2, the composition of the utility model pushing-type fusible core protector comprises housing 1, binding post 14, have by push rod 2, push rod return spring 4, push rod groove 6, advance core groove 5, core storing storehouse 20, the elastic bracket of preparation fusible core 7, the pushing-type fusible core that the elastic clamp seat 13 of work fusible core 12 is formed is converting mechanism more, push rod 2 inserts push rod groove 6 by the push-rod hole on the housing 1, push rod 2 fronts have alignment pin 3, has alignment pin chute 19 on the push rod groove cover plate 18, push rod return spring 4 is installed on the reference column 17, one end connects push rod alignment pin 3, one end connects spacing pillar 16, advancing core groove 5 is positioned on the push rod proceeds posterolateral housing, core storing storehouse 20 is positioned at push rod 2 back, its upper end with advance core groove 5 and be communicated with, its lower end outlet is positioned at push rod 2 belows, preparation fusible core elastic bracket is by supporting plate 8, supporting plate fulcrum 9, return spring 10, the spacing pillar 11 of return spring is formed, be positioned at outlet both sides, core storing storehouse 20 lower ends, work fusible core elastic clamp seat 13 is the metal deck, it is fixedlyed connected with binding post 14, has on the housing base and the 12 corresponding outlets 15 of work fusible core.

It is very easy that the utility model is changed fusible core, need only press down push rod 2, will prepare fusible core 7 and head in the metal deck 13, becomes new work fusible core, and the former work fusible core 12 that blows is discharged by housing base outlet 15.Push rod 2 and preparation fusible core supporting plate 8 reset under the effect of its return spring 4,10, and the new preparation fusible core that comes out from core storing storehouse 20 lower ends is prepared the fusible core elastic bracket and holds, and waits for and changes fusible core next time.

For the ease of judging fuse state, the further feature of the utility model is, as shown in Figure 1, has the warning indicating circuit that is composed in series by resistance R (or inductance L) and indicator light D, and this circuit is in parallel with the binding post 14 at the fusible core two ends of working.Under the normal condition, indicator light does not work; In case the work fusible core blows, indicator light is bright, and reminds people is in time overhauled, and changes fusible core.Indicator light can be neon bulb, bulb or light-emitting diode among the embodiment.

The utility model carries some standby fusible cores, must not dismantle the fuse cassette holder and can change fusible core quickly and easily, and fail safe is good, the fusible core box adopts enclosed construction, and corrosion-resistant, waterproof, explosion-proof performance are good, are suitable for using in adverse circumstances, volume is little, and is convenient for installation and maintenance.

Claims

1, pushing-type fusible core protector, its composition comprises housing, binding post, fusible core, it is characterized in that having by push rod, the push rod return spring, the push rod groove, advance the core groove, core storing storehouse, preparation fusible core elastic bracket, the pushing-type fusible core that work fusible core elastic clamp seat is formed is converting mechanism more, push rod inserts the push rod groove by the push-rod hole on the housing, the push rod front has alignment pin, has the alignment pin chute on the push rod groove cover plate, the push rod return spring is installed on the reference column, one end connects the push rod alignment pin, one end connects spacing pillar, advancing the core groove is positioned on the push rod proceeds posterolateral housing, core storing storehouse is positioned at the push rod back, its upper end with advance the core groove and be communicated with, its lower end outlet is positioned at the push rod below, and preparation fusible core elastic bracket is by supporting plate, the supporting plate fulcrum, return spring, the spacing pillar of return spring is formed, and is positioned at outlet both sides, core storing storehouse lower end, work fusible core elastic clamp seat is fixedlyed connected with binding post, has on the housing base and the corresponding outlet of work fusible core.

2, pushing-type fusible core protector according to claim 1 is characterized in that having the warning indicating circuit that is composed in series by resistance and indicator light, and this circuit is in parallel with the binding post at work fusible core two ends.