CN2395000Y - Dust-proof rolling sheet lock - Google Patents

Abstract

The utility model relates to an improved lock head for rolling gate locks, particularly a dust-proof lock head for rolling gate sheet locks, which comprises a lock head shell and a lock core, wherein, the middle part of the lock core is provided with a plurality of sheets, a card and cylindrical springs of corresponding quantity, and an empty hole is arranged in a position near a key hole. A small shaft, a torsional spring and a dust-proof sheet are arranged in the empty hole, wherein, the dust-proof sheet is installed at the outer side of an upper arm of the torsional spring. A dust-proof cover is installed at the outer end part of the lock core. As the utility model is assembled with other spare parts and parts of a general rolling gate lock, a rolling gate lock of a new generation, namely, a dust-proof rolling gate sheet block is formed.

Description

Anti-dust devil lock page or leaf sheet lock

The utility model relates to improved coil brake lock tapered end, particularly a kind of anti-dust devil lock page or leaf sheet lock.

At present, coil brake lock is installed in the bottom of volume lock, then near ground or floor face, is often invaded by dust, mud, sand and dirt during use, and lock is easily produced fault and reduction of service life.

The purpose of this utility model provides a kind of anti-dust devil lock page or leaf sheet lock, and it can prevent dust, mud, sand and dirt intrusion basically, reduces fault, increases the service life.And can make things convenient for freely when using.

The dustproof major part is a lock core, also just need certain space at a kind of guard mechanism of can movable open and close and being easy to use freely of its leading section installing, is difficult to realize if adopt the lock core of existing coil brake lock to improve.One class page or leaf sheet lock core is arranged in the prior art, also be not applied in the coil brake lock,, just can satisfactorily realize the purpose of this utility model if adopt the technology and the dustproof guard mechanism of page or leaf sheet lock pin to combine.

The utlity model has tapered end shell and lock core, the cylindrical spring that polylith page or leaf sheet, card and respective numbers are arranged at lock core middle part, near the key insertion hole place one cavity is arranged in the lock core, the bottom, cavity has two ends to be fixed on little axle on the wall of hole, on the little axle torsion spring is housed, and the torsion spring underarm is supported on the lower wall in cavity, dustproof sheet is equipped with in the outside of torsion spring upper arm, under the normality, the inboard that dustproof sheet abuts against keyhole hides the hole, and dust cap is equipped with in the lock core outer end.

In order also to prevent dust and to be easy to dedusting and increase the attractive in appearance of whole tapered end in other position that makes tapered end, can overlap a cover of upholstery in tapered end shell outside.

The central authorities of dust cap leave keyhole, and after key passed the keyhole that dust cap inserts lock core, the elastic force that the key front end will overcome torsion spring was earlier pushed the key that could continue the insertion lock core after the dustproof sheet open and unblanked.After extracting key out, dustproof sheet is homing under the elastic force effect of torsion spring, again lock core keyhole is hidden.

Structure and operating principle, the opening and closing process of the page or leaf sheet at lock core middle part, card, cylindrical spring etc. are to use prior art.

The utility model has the advantages that and to prevent effectively in dust, mud, sand and the dirt intrusion tapered end.And when using convenient freely.

With this tapered end and common coil brake lock other zero, parts are equipped, just become coil brake lock---the anti-dust devil lock page or leaf mortice lock of a new generation.

Further illustrated below in conjunction with accompanying drawing and illustrated embodiment:

Fig. 1 is an organigram of the present utility model;

Fig. 2 is the A-A partial sectional view of Fig. 1.

See Fig. 1,2, lock core 1 is arranged in tapered end shell 9, there are three page or leaf sheets 8, card 7 and four cylindrical springs 6 in lock core 1 middle part, near the key insertion hole place one cavity is arranged in the lock core, its underpart has two ends to be fixed on little axle 4 on the wall of hole, on the axle torsion spring 2 is housed, the underarm of torsion spring 2 is supported on the lower wall in hole, dustproof sheet 3 is equipped with in the upper arm outside of torsion spring, under the normality, the elastic force of torsion spring 2 is pressed on the inboard of keyhole to dustproof sheet and the hole is hidden, and the outer end of lock core 2 is with a dust cap 5, and the outside of tapered end shell 9 is with cover of upholstery 10.Key is pushed dustproof sheet 3 earlier open after inserting lock core keyhole by dust cap 5, unblanks then.After extracting key out, dustproof sheet 3 is covered in keyhole again by pop into position.

Claims (2)

1, a kind of anti-dust devil lock page or leaf sheet lock, has tapered end shell (9), lock core (1), it is characterized in that there is polylith page or leaf sheet (8) at lock core (1) middle part, the cylindrical spring (6) of a card (7) and respective numbers, near the key insertion hole place one cavity is arranged in the lock core, the bottom, cavity has two ends to be fixed on little axle (4) on the wall of hole, on the little axle (4) torsion spring (2) is housed, torsion spring (2) underarm is supported on the lower wall in cavity, dustproof sheet (3) is equipped with in the outside of torsion spring (2) upper arm, under the normality, the inboard that dustproof sheet (3) abuts against keyhole hides the hole, and dust cap (5) is equipped with in the outer end of lock core (1).

2, tapered end according to claim 1 is characterized in that the outside of tapered end shell (9) is with cover of upholstery (10).

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