CN2799772Y - Theft-proof lock for transformer - Google Patents

Abstract

The utility model discloses a theftproof lock for transformers, which comprises a lateral U-shaped lock body and an irregular bolt, wherein a bolt countersink is arranged in an upper lock body, a slide block is matched in a through hole of a lower lock body, a bolt hole corresponding to the bolt is arranged in the slide block, an upper cover of a transformer and the edge of an upper opening of a casing of the transformer are connected and fixed by the upper lock body and the lower lock body through the irregular bolt, and a marble lock which buckles and presses the bolt in the bolt countersink is sheathed in the bolt countersink. A dead bolt in the lateral surface of the marble lock can extend out from the marble lock and is inserted into a dead bolt groove of the bolt countersink, and thus the bolt is buckled at the bottom of the bolt countersink and can not be picked u easily. The utility model can adjust the width of a U-shaped opening of the theftproof to match the U-shaped opening according to the thickness of the edge of the upper opening of a casing of the transformer and the cover of the transformer, has good matching adjustability and can be effectively prevented from being sawed and smashed.

Description

The transformer anti-theft lock

Technical field:

The utility model relates to a kind of anti-theft device, specifically a kind of theftproof lock of preventing that transformer from illegally being opened of being used to.

Background technology:

Between transformer loam cake and the transformer housing upper brim edge, adopt common bolt to be connected and fixed usually.This transformer is easy to be pried open by the lawless person and the equipment of housing the inside is stolen.Notification number is to disclose a kind of transformer anti-theft lock in the patent application of 2120156U, this lock adopt side " U " shape lock body, bolt and lock core with transformer loam cake and housing upper brim along being connected and fixed.But often there is the gap in " U " shape mouth width of this lock when the thickness with transformer loam cake and housing upper brim edge matches, in actual use, bring opportunity to the lawless person easily, makes transformer anti-theft lock by sawed-off and can't play anti-theft effect.

Summary of the invention:

In order to overcome the above-mentioned technological deficiency that has the transformer anti-theft lock now, the utility model provides a kind of can prevent effectively that saw, anti-file, installation are provided easier opening, the better transformer anti-theft lock of theftproof performance.

The technical solution adopted in the utility model is as follows: a kind of transformer anti-theft lock, comprise side direction " U " shape lock body and special shaped screw bolt, one bolt counter sink is arranged in the upper lock body, corresponding bolt hole is arranged in the down lock body, last down lock body is connected and fixed transformer loam cake and transformer housing upper brim edge by bolt, in counter sink, be set with one bolt withheld cylinder lock in counter sink, the cylinder lock side is provided with dead bolt, offer in the countersunk head hole wall and the corresponding lock tongue slot of dead bolt, vertically offer a through hole in the down lock body, be combined with a slide block in the through hole, described bolt hole is on slide block.

After the utility model adopts technique scheme, can adjust theftproof lock " U " shape mouth width and be mated according to the thickness of transformer housing upper brim edge and transformer cover, can effectively prevent from " U " shape mouth gap insertion saw blade, theftproof lock is cut, improve the theftproof performance of theftproof lock.Further, be set with protecting cover, counter sink and cylinder lock are covered, can prevent pin tumbler lock body generation corrosion, influence the installation and the unpacking of theftproof lock in described upper lock body end.

Description of drawings:

Fig. 1 is the utility model structural representation.

The specific embodiment:

Below, further specify the utility model with specific embodiment in conjunction with the accompanying drawings.

As Fig. 1, transformer anti-theft lock of the present utility model comprises lock body 1, cylinder lock 2, bolt 3,1 one-tenth side direction of lock body " U " shape.Bolt counter sink 13 is arranged in the upper lock body 11, vertically offer square through hole 14 in the down lock body 12, scarf has a square slider 4 in the through hole, is provided with in the slide block and the corresponding bolt hole 5 of bolt.Bolt 3 is polygonal special shaped screw bolt, during use, needs bolt to be screwed in the bolt hole of slide block fixing with special spanner.Do not tripped out for being bolted to counter sink effectively, in countersunk head, also be set with a cylinder lock 2, dead bolt 21 is housed on the cylinder lock, on the countersunk head hole wall, offered and the corresponding lock tongue slot 22 of dead bolt.

In the end of upper lock body 11 protecting cover 6 is arranged, protecting cover is enclosed within outside counter sink and the cylinder lock, can prevent pin tumbler lock body generation corrosion and influences use.

It is arc structure that " U " shape is put into the gained lateral surface, and anti-the hitting that can not only improve theftproof lock pounded performance, also makes the profile of lock body more attractive in appearance.

Lock body of the present utility model and slide block adopt firm metal material to make, and cooperate compliance good, can effectively prevent saw, anti-pounding.During use, with " U " shape mouth inlay card of lock body transformer loam cake and housing upper brim along on, counter sink 13 is aimed at the fixing hole of transformer, bolt 3 is put into fixing hole from counter sink, square slider 4 penetrates from through hole 14 belows, bolt 3 is screwed in the bolt hole 5 of slide blocks with special spanner, slide block 4 is along with the rotation of bolt 3 is constantly risen, until with transformer loam cake and housing upper brim along chucking.Marble lock key is inserted in the pellet shot from a slingshot lockhole 23, cylinder lock 2 aimed at and cover is packed in the counter sink 13, rotate marble lock key, dead bolt 21 stretches out from cylinder lock and embeds in the lock tongue slot 22, cylinder lock then is fixed in the counter sink, and bolt is withheld in the counter sink bottom and is not easy to be tripped out.Extract marble lock key, protecting cover 6 is covered in the upper lock body end.When needs are opened theftproof lock, open protecting cover 6, insert and counter-rotating theftproof lock key, dead bolt is return in the cylinder lock, extracts cylinder lock, bolt can be tripped out in counter sink with special spanner.

Claims (3)

1, a kind of transformer anti-theft lock, comprise side direction " U " shape lock body and special shaped screw bolt, one bolt counter sink is arranged in the upper lock body, corresponding bolt hole is arranged in the down lock body, last down lock body is connected and fixed transformer loam cake and transformer housing upper brim edge by bolt, it is characterized in that, in counter sink, be set with one bolt withheld cylinder lock in counter sink, the cylinder lock side is provided with dead bolt, offer in the countersunk head hole wall and the corresponding lock tongue slot of dead bolt, vertically offer a through hole in the down lock body, be combined with a slide block in the through hole, described bolt hole is on slide block.

2, transformer anti-theft lock according to claim 1 is characterized in that through hole and slide block are square structure.

3, transformer anti-theft lock according to claim 1 and 2 is characterized in that the upper lock body end is set with a protecting cover.

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