CN201326312Y

CN201326312Y - Belt chain steel plate lock

Info

Publication number: CN201326312Y
Application number: CNU2008201713203U
Authority: CN
Inventors: 吴炯伟
Original assignee: TONGXIANG SKYFINE HARDWARE CO Ltd
Current assignee: TONGXIANG SKYFINE HARDWARE CO Ltd
Priority date: 2008-12-22
Filing date: 2008-12-22
Publication date: 2009-10-14
Anticipated expiration: 2018-12-22

Abstract

The utility model relates to a belt chain steel plate lock, which comprises a lock body and a lock chain, wherein the lock body is formed by superposing metal plates, the rear foot of the lock chain is fixed on one side of the lock body, the front foot of the lock chain is matched with a marble spring device, and a marble is pressed by a spring. The belt chain steel plate lock is characterized in that the upper end surface of a lock core is provided with a rotary cam, the outer lateral surface of the cam is symmetrically provided with an arc-shaped inside recessing curved surface, the arc-shaped cam is parallel to the front foot of the lock chain, and a marble spring bolt is arranged between the arc-shaped cam and the front foot of the lock chain. The belt chain steel plate lock improves the shearing intensity of the spring bolt, and provides a belt chain lockset with the functions of knobbing, shearing, colliding, twisting and sawing prevention.

Description

A kind of band chain steel disc lock

Technical field:

The utility model belongs to the technical field that mechanical lock is made, and is specifically related to a kind of by the superimposed band chain steel disc lock that forms of sheet metal.

Background technology:

The lock body of the mechanical band chain lockset of tradition is formed by the metal material casting usually, then at interior lock core, dead bolt and the chain of being provided with, the dead bolt of the lockset of this structure is hit at lock body and to be damaged easily in striking, chain and lock body also are sheared or sawing easily, and the anti-poor-performing that pulls out of lock core.

Chinese patent CN201062446Y discloses a kind of lockset, its lock body pore-forming lamination mode riveted, chain is made up of steel ball, wire rope and joint cover, chieftain before one section connection of chain, the other end is fixed in the lock body, dead bolt links to each other with lock core, and the dead bolt front end can be gone into sealed with preceding chieftain's revotating card of chain; Dead bolt is provided with the hole slot with the lock core foot coupling, and lock core foot inserts in the hole slot, and dead bolt rotates with the rotation of the lock core foot of lock core.Dead bolt adopts the arc bayonet socket in this scheme, and offers hole slot on dead bolt, but this method can make shear stress concentrate on dead bolt, does not solve the problem that strike plate damages easily.

Chinese patent CN2661862Y discloses a kind of Steel wire rope lock, comprise lock body, lock bridge, lock bridge is fixed in the hole of lock body one end by lock bridge pin sheet, and lock core links to each other with dead bolt by the dead bolt pin, dead bolt adopts cam structure, rotates freely angle less than 2 ° in lock body.Equally also there is the not high shortcoming of dead bolt structural strength in this technical scheme.

Summary of the invention:

The purpose of this utility model is in order to solve the deficiency of technique scheme, provide a kind of have anti-ly strike, anti-ly cut, anti-ly collide, anti-ly turn round, the band chain steel disc lockset of anti-saw function.

The technical scheme that the utility model adopted is:

A kind of band chain steel disc lock, comprise lock body and chain, lock body forms by sheet metal is superimposed, the chain rear foot is fixed in lock body one side, and the chain forward foot in a step cooperates with the bullet spring assembly, and bullet is subjected to the spring roof pressure, it is characterized in that the lock core upper surface is provided with a rotatable cam, the cam lateral surface is symmetrical arranged the arc shape inner sunken face, and arc-shaped cam is parallel with the chain forward foot in a step, establishes a pellet shot from a slingshot dead bolt therebetween.

Be provided with a metal coating sheet in the egative film of the key spigot of described lock body, egative film is established a key guide hole, and egative film key socket adopts fan-shaped design, can improve the anti-performance of striking of lock core.

But lock body outsourcing one deck kirsite lock core cover.

The curved column of described cam, contain two symmetrically arranged inner sunken faces, the cam bottom is provided with the bottom surface that is complementary with lock core foot, top is provided with groove, be embedded the torsion spring of a pagoda shape in the groove, the torsion spring pin inserts in the lock body sheet metal, and lock core rotates and causes torsion spring flexible, produce a lasting moment of torsion, make cam remain in lock-out state.

Described bullet is column, and the bullet upper end is provided with spigot surface, the T-shaped step in bullet bottom.

When the steel disc lock is in opening, the lockset key inserts the rotation of lock core rotating band moving cam, the pellet shot from a slingshot dead bolt is pushed into the inner sunken face of cam lateral surface, at this moment, stage clip in the bullet spring assembly is in stretching, extension, the promotion bullet is up, with locking plate clamping sealing keyhole, makes the pellet shot from a slingshot dead bolt by the inner sunken face of cam lateral surface and bullet clamping.

When steel disc is locked when locked, the chain forward foot in a step is inserted in the lock body opening, make the stage clip compression, bullet is descending, simultaneously, cam is under the effect of torsion spring, and the inner sunken face during from opening turns to outside convex surface, the pellet shot from a slingshot dead bolt is pressed against the lockhole side, and the pellet shot from a slingshot dead bolt is by the T font step clamping of the cam outside convex surface and the chain forward foot in a step.

Described chain is made up of steel ball, wire rope, joint cover and front and back pin, and steel ball is connected into the steel ball chain by wire rope, outsourcing joint cover; Pin is provided with the step of T font before and after the steel ball chain, and the rear foot fixes on T font step pin in the lock body by steady pin.Chain can be crooked arbitrarily, and used steel ball and joint cover reach HR15N86-91 through heat treatment.

The lock body of steel disc lock is formed by the steel material riveted that reaches HR15N86-91 through heat treatment.

The lockset that the utility model provides adopts pellet shot from a slingshot dead bolt and bullet spring assembly, and the chain forward foot in a step can be ejected lock body automatically when lock was opened, and does not need the key can be sealed during locking, and is convenient and practical; Simultaneously, adopt the structure of cam and pellet shot from a slingshot dead bolt,, strengthened the intensity of dead bolt structure effectively, further improved the anti-performance of striking of lockset with the phase-locked ratio of general steel disc.

Lockset lock body that the utility model provides and chain can cooperate be covered by engineering plastics, and be elegant in appearance and improved the corrosion resistance of lockset.

The steel disc lock that the utility model provides, tension test, vibration test, chain cutting test, plug tensile test, plug torsional test, sawing test and the test of band chain lock impact force by routine all meet U.S. lockset test stone ASTM F-2369-04.

Compared with prior art, the technical scheme that provides of the utility model has improved the anti-performance of striking of lockset by the qualification of cam, pellet shot from a slingshot dead bolt and chain forward foot in a step relative position; Adopt pellet shot from a slingshot dead bolt and bullet spring assembly, the chain forward foot in a step can be ejected lock body automatically when lock was opened, and did not need the key can be sealed during locking, and is convenient and practical; Heat treatment by lock body, chain has improved lockset anti-ly cuts, anti-saw performance; Improved the anti-collision performance of lockset by the lamination riveted of metal steel disc; By the T font step of the chain rear foot and closely fixing of latch, improved the anti-performance of turning round of lockset; Lock body is zinc covering alloy lock core cover and engineering plastics, the outer canning tube of chain and engineering plastics outward, have improved the corrosion resistance of lockset.

Description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a cam structure schematic diagram one

Fig. 3 is a tool cam structure schematic diagram two

Fig. 4 is a torsion spring positional structure schematic diagram

Wherein: lock body 10, steel disc 11, steady pin 12, locking bolt 13, locking bolt hole 14, chain 20, steel ball 21, steel cable 22, joint cover 23, the rear foot 24, the forward foot in a step 25, T shape step 26, T shape step 27, lock core 30, lock core foot 31, bullet spring assembly 40, bullet 41, stage clip 42, bullet spigot surface 43, T shape step 44, cam 50, cam bottom surface 51, groove 52, inner sunken face 53, arc convex 54, groove 55, pellet shot from a slingshot dead bolt 60, key 70, torsion spring 80, torsion spring fixing feet 81, torsion spring pin 82.

The specific embodiment:

The utility model will be further described below in conjunction with accompanying drawing.

As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, band chain steel disc lock, comprise lock body 10 and chain 20, lock body 10 is formed by stacking by the cold rolling steel disc 11 that is provided with locking bolt hole 14, by locking bolt 13 riveted joints, the chain rear foot 24 is fixed in the lock body 10, the chain forward foot in a step 25 contacts with bullet spring assembly 40, wherein bullet spring assembly 40 is made of bullet 41 and stage clip 42, be provided with a rotatable cam 50 in lock core 30 upper ends, cam 50 lateral surfaces are symmetrical arranged arc shape inner sunken face 53, and arc-shaped cam 50 is parallel with the chain forward foot in a step 25, establish a pellet shot from a slingshot dead bolt 60 therebetween.

Described cam 50 curved columns, contain two symmetrically arranged inner sunken faces 53, cam 50 bottoms are provided with the bottom surface 52 that is complementary with lock core foot 31, and bottom surface 52 is provided with the groove 55 that cooperates with lock core foot 31, lock core foot 31 inserts in the groove 55, drives cam 50 and rotates; Cam 50 end faces are provided with groove 52, are embedded the torsion spring 80 of a pagoda shape in the groove 52, and torsion spring pin 82 cooperates with groove 52, torsion spring fixing feet 81 is inserted in the lock body sheet metal 11, lock core 30 rotates and causes torsion spring 80 flexible, produces a lasting moment of torsion, makes cam 50 remain in lock-out state.

Described bullet 41 is column, and the bullet upper end is provided with spigot surface 43, the T-shaped step 44 in bullet bottom.

When the steel disc lock is in opening, lockset key 70 inserts 50 rotations of lock core 30 rotating band moving cams, pellet shot from a slingshot dead bolt 60 is pushed into the inner sunken face 53 of cam 50 lateral surfaces, at this moment, stage clip 42 in the bullet spring assembly 40 is in stretching, extension, it is up to promote bullet 41, with locking plate 11 clamping sealing keyholes, makes pellet shot from a slingshot dead bolt 60 by the inner sunken face 53 of cam 50 lateral surfaces and bullet 41 clampings.

When steel disc is locked when locked, the chain forward foot in a step 25 is inserted in the lock body opening, make stage clip 42 compressions, bullet 41 is descending, simultaneously, cam 50 is under the effect of torsion spring 80, and the inner sunken face 53 during from opening turns to outside convex surface 54, pellet shot from a slingshot dead bolt 60 is pressed against the lockhole side, and pellet shot from a slingshot dead bolt 60 is by T font step 26 clampings of cam 50 outside convex surfaces 54 and the chain forward foot in a step 25.

Described chain is made up of steel ball 21, wire rope 22, joint cover 23 and the forward foot in a step 25, the rear foot 24, and steel ball 21 is connected into the steel ball chain by wire rope 22, outsourcing joint cover 23; Pin is provided with the

step

26,27 of T font before and after the steel ball chain, and the rear foot 24 fixes on T font step 27 pins in the lock body 10 by steady pin 12.Chain 20 is can be arbitrarily crooked, and used steel ball 21 and joint cover 23 reach HR15N86-91 through heat treatment.

The lock body 10 of described band chain steel disc lock is formed by the steel material riveted that reaches HR15N86-91 through heat treatment.

Claims

1, a kind of band chain steel disc lock, comprise lock body and chain, lock body forms by sheet metal is superimposed, the chain rear foot is fixed in the lock body, and the chain forward foot in a step links to each other with the bullet spring assembly, and wherein the bullet spring assembly is made of bullet and stage clip, it is characterized in that the lock core upper end is provided with a rotatable cam, the curved shape of described cam lateral surface is established a pellet shot from a slingshot dead bolt between the cam and the chain forward foot in a step, described pellet shot from a slingshot dead bolt is a spherical steel ball that matches with cam.

2, band chain steel disc lock as claimed in claim 1 is characterized in that described cam end face interlocking torsion spring, and the cam lower surface is provided with groove and links to each other with the lock core foot on lock core top, and the cam lateral surface is symmetrical arranged the arc shape inner sunken face.

3, band chain steel disc lock as claimed in claim 1 is characterized in that the described chain forward foot in a step is provided with T font step.