CN2225520Y - Laminated safety lock with tooth - Google Patents

Abstract

The utility model relates to a lock for a closet, a door, a drawer, etc. The lock is particularly suitable for an insurance closet. The lock comprises a bottom plate with a key hole and a cover plate and a lock piece, a tooth piece and a copper pad piece are folded between the bottom plate and the cover plate. One surface of the lock piece is fixed with a lock piece head and a hole with an inner tooth and a positioning groove hole are arranged in the lock piece. The tooth piece is fixed with a restoring spring and comprises an E-shaped through hole having the engaged width and height with the lock piece head in a flat surface. The peripheral wall of the tooth piece is provided with a tooth profile surface and two spacing grooves having opposite opening directions and a pin shaft for clamping the spring, positioning and guiding is arranged between the cover plate and the bottom plate. The utility model solves the problem of the poor confidentiality of the inner structure of the lock.

Description

Toothed stacked safety lock

The utility model is that a kind of lock can be used for particularly safe such as bin, door, drawer.

Existing lock can be divided into spring type and rotor type two big classes.The former can and be loaded on pellet shot from a slingshot in it, spring etc. by cylinder tapered end, lock core and form; The latter comprises tapered end and lock body, wherein has pin, capping, key, circlip, rotor, reed and lock core on the tapered end, and lock body includes dead bolt, shaft block ring, shift fork, little spring, bolt plate, cover plate, lock box etc.This two big classes lock directly promotes pellet shot from a slingshot by the key that is rotating and shrinks back or rotates rotor and middle driving member thereof, makes to lock to open or close.Their shortcoming is the perisporium that pellet shot from a slingshot or rotor directly are distributed in keyhole, so the confidentiality of its internal construction is poor, is disclosed out by the people easily.

The purpose of this utility model is to restrain the above-mentioned shortcoming of the prior art of limit, and a kind of toothed preferably stacked safety lock of confidentiality of internal construction is provided, and it is simple in structure simultaneously it to be had, and characteristics such as makes and easy for installation.

The toothed stacked safety lock of the utility model includes: the base plate and the cover plate of band keyhole; Superimposed locking plate, gear piece and copper backing between base plate and cover plate; Affixed locking plate chieftain on the face of locking plate, and contain the hole and the location notch hole of a band internal tooth at locking plate; Affixed back-moving spring on the gear piece, and the E font through hole that contains a width on its plane and highly all match with the locking plate chieftain have flank profil face and two spacing slotted eyes that opening direction is opposite on the perisporium of gear piece; Between cover plate and base plate, also have one group of jump ring bearing pin, alignment pin, guiding bearing pin that has interconnect function concurrently; Locking plate is limited in guiding the width range that bearing pin limited location notch hole kink on it in alignment pin; Gear piece is folded on lock chieftain's the locking plate plane, its E font through hole kink in the locking plate chieftain and two spacing slotted eyes respectively kinks on alignment pin; Be fixed in the spring on the gear piece, its overhanging end is limited in the inboard of jump ring bearing pin; Copper backing places between movable and the sheet, reducing the wearing and tearing of movement parts, but has the through hole of kink on alignment pin on it, and the breach and the through hole that do not hinder key, locking plate chieftain motion.

The gear piece number can be one, preferably more than two.

To and contrast accompanying drawing by embodiment below, the utility model will be done further narration.Have in the accompanying drawing:

Fig. 1 and Fig. 2 are respectively the elevation and the left views of toothed stacked safety lock;

Fig. 3 is the A-A sectional view among Fig. 2;

Fig. 4 is the key elevation and the vertical view of the utility model lock;

Fig. 5, Fig. 6 are respectively B-B, the C-C sectional views among Fig. 2.

See from Fig. 1 and Fig. 2, the toothed stacked safety lock of the utility model includes: the base plate 5 and the cover plate 1 of band keyhole 11, base plate and cover plate are connected by a jump ring bearing pin 6, two alignment pin 7, three guiding bearing pins 8, their centres are a superimposed locking plate 4, four gear pieces 3 and be clipped in four copper backings 2 between each gear piece.

The structure of locking plate 4 can also see from Fig. 5 and Fig. 6, affixed locking plate chieftain 41 on the face that it contacts with gear piece, and the locking plate plane includes porose 44 and location notch hole 43, has internal tooth 42 and location notch hole 43 in its mesopore 44.

The structure of gear piece 3 can also see that its lateral inner wall is inserted and fixed spring 32 from Fig. 5, and spring is thread, and its other end is limited in the inboard of jump ring bearing pin; The plane of gear piece contains E font through hole 31, and the width of each branch's through hole of this through hole is with highly all consistent with locking plate chieftain 41, that is each branch's through hole all can slip over from the locking plate chieftain when each sheet is done level or vertical direction motion.Have flank profil face 33 on the perisporium of the upper left breach of gear piece, all there are the opening direction of spacing slotted eye 34, two spacing slotted eyes opposite but shape and equal and opposite in direction in its lower left and upper right side.

Copper backing also can see from Fig. 3, and it on alignment pin 7, and has a through hole 21 that can move for the locking plate chieftain with its two circular hole kinks that have in its plane.

Can from Fig. 4, see with the key that safety lock in the present embodiment is complementary, in its inserts the keyhole 11 of cover plate and its 92 be shelved on and do clockwise direction on the support holes 51 of base plate when 0 ° turns to 90 ° of angles, tooth on key one side and the engagement of the flank profil face on the gear piece, gear piece is moved right by the alignment pin along continuous straight runs, at this moment gear piece can reach on the position of representing with double dot dash line among Fig. 5, the locking plate chieftain is on the vertical direction branched bottom of E font through hole, tooth on the key opposite side and 42 engagements of the internal tooth on the locking plate meanwhile, when key when 90 ° forward 180 ° of angles to, locking plate 4 moves upward, the locking plate chieftain promptly rises to the middle level by the bottom of E font through hole, gear piece is subjected to the counter-force effect of the spring 32 on it and is returned to original position this moment, and the square shaped teeth of its E font through hole is pinned the locking plate chieftain.Similarly, when key forwards 270 ° of angles to by 180 ° again, gear piece is passed on the position that double dot dash line represents by original position again, the locking plate chieftain is on the branched bottom of vertical direction of E font through hole, the opposite side tooth of key and the engagement of locking plate internal tooth, when key is rotated further, when forwarding 360 ° of angles to by 270 °, locking plate moves upward, the locking plate chieftain rises to top layer by the middle level of E font through hole thereupon, at this moment gear piece is subjected to the spring force effect and resets, and the square shaped teeth of its E font through hole is pinned the locking plate chieftain again.The guiding of bearing pin 8 moves up and down locking plate in the H width range; Gear piece motion is subjected to the location of alignment pin 7 and spacing.

The flank profil face of the profile of tooth number of teeth of change key and corresponding locking plate internal tooth thereof, gear piece promptly can be made into different toothed stacked safety locks.

The utility model has the advantages that: 1) it is laminated structure, and each sheet is made by punching press, And every layer of equal kink is to bearing pin, so its simple in structure, manufacturing and easy for installation; 2) Superimposed tightr between each sheet, be difficult to by the people with the internal tooth of key engagement and the shape of flank profil face Spy upon, more can't guess, so the confidentiality of its structure is better, and locking plate and gear piece it But between with the locking plate chieftain of self-locking, make the stranger be difficult to disclose out, safe and reliable in therefore using.

Claims (1)

1, a kind of toothed stacked safety lock is characterized in that: it contains the base plate (5) and the cover plate (1) of band keyhole (11); Superimposed locking plate (4), gear piece (3) and copper backing (2) between base plate and cover plate; An affixed locking plate chieftain (41) on the face of locking plate, and locking plate contains the hole (44) and location notch hole (43) of a band internal tooth (42); On the gear piece affixed back-moving spring (32), and the E font through hole (31) that contains a width on its plane and highly all match with the locking plate chieftain, have flank profil face (33) and two spacing slotted eyes (34) that opening direction is opposite on the perisporium of gear piece; Between cover plate and base plate, also have one group of jump ring bearing pin (6), alignment pin (7), guiding bearing pin (8); Locking plate is limited in the scope of the guiding width (H) that bearing pin limited the location notch hole kink on it in alignment pin (7); Gear piece is folded on lock chieftain's the locking plate plane, its E font through hole kink in the locking plate chieftain and two spacing slotted eyes respectively kinks on alignment pin (7); Be fixed in the spring on the gear piece, its overhanging end is limited in the inboard of jump ring bearing pin (6); Copper backing places between movable and the sheet, but has the through hole of kink on alignment pin (7) on it and do not hinder the breach (22) and the through hole (21) of key, locking plate chieftain motion.

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