CN2168928Y

CN2168928Y - U-shape lock

Info

Publication number: CN2168928Y
Application number: CN 93221726
Authority: CN
Inventors: 谢祯桂
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-08-21
Filing date: 1993-08-21
Publication date: 1994-06-15
Anticipated expiration: 2003-08-21

Abstract

The utility model relates to a U-shaped lock which is characterized in that a transversal locking element is arranged in the cannula of a lock body, composed of a locking head, a V-shaped cam, a forward slide, a lock core connecting rod, a spring, a location base, a central conductor, a backward slide, and a short lock core pin; the transversal locking element uses the rotation of the lock core of the lock head to drive the V-shaped cam, so that the left and the right lateral displacement are generated by linking of the forward slide, the lock core connecting rod, and the backward slide, and then the lock core pin is inserted into or disengage from the card hole of the U-shaped key to achieve the efficacy of locking or unlocking. The axle hole of the forward slide is an elliptical hole, and the center section of the lock core connecting rod is provided with a stage circle with larger diametric to operate cooperatively with the axle hole of the location base, so that the use of the lock is safe, and the lock can not be opened by vigorously or consecutively knocking.

Description

U-shape lock

The utility model relates to a kind of U type padlock, refers to that especially a kind of core of using tapered end rotates and drive V-arrangement cam, makes the core pin produce left and right lateral displacement, and inserts or break away from the hole clipping of U-shaped key.

At present, the U-shaped padlock of selling on the market has three kinds, the U-shaped key 1 of a kind of padlock (Fig. 1) ' an end become crotch 11 ' shape, the other end have buckle breach 12 ', lock body 2 ' an end establish corresponding crotch 11 ' slotted eye 12 ', but in addition end inside be tapered end 3 ' with a lateral displacement core pallet 22 ', make encircle key 1 ' buckle breach 12 ' insertion after, turn-knob tapered end 3 ' make core pallet 22 ' lateral displacement top snap in buckle breach 12 ', reach the locking purpose; Because of the bicycle dense arrangement in parking lot, U type key is different with the two-end structure of lock body can not to exchange use, thereby is not suitable for night or the use of light dark place; And the abrasion of this kind padlock components are big, and application life is short.The U-shape sword iron 10 of another kind of U-shaped padlock (Fig. 2) " two ends interior circular hole is all arranged and the narrow short slot 11 of opening ", and the core control of the flat-shaped dead bolt 30 of tubulose body 20 " in have be combined in inside pipe casing two ends holder 21 " "; inserted key 40 " and rotating, when dead bolt 30 " flat-shaped section change into vertically to the time; locking bar 10 " just can enter lockhole 50 " smoothly, and dead bolt 30 " also can by locking bar 10 " lower end short slot 11 " narrow opening enter; The flat-shaped section of ", make dead bolt 30 " changes into level as key 40 again, can lock jail (Fig. 3); This type of padlock, necessary bimanualness, complicated operating process, difficulty.

The purpose of this utility model is that a kind of Novel U-shaped padlock will be provided, and it has a horizontal closed block, is contained in the lock sleeve, and its not only sturdy and durable, long service life, and processing ease are not limited by usage space.

The purpose of this utility model is together real like this: it is made up of U-shaped key 1, lock sleeve 2 and tapered end, and it is characterized in that has horizontal closed block 3 in the lock sleeve 2:

The two ends leading edge of a, U-shaped key 1 is a ballhead, and has core hole clipping 11,12;

B, lock sleeve 2 are the hollow bushing pipe, and there is

ring key patchhole

21,12 at two ends;

C, horizontal closed block 3 are located in the lock sleeve 2, and its composition has in regular turn:

-tapered end 31 pin 41 that is fixed is installed in sleeve pipe 2 front ends;

On lock mandrel 311, periphery has rotation limit groove 322 to be subjected to alignment pin 42 restrictions to-V-arrangement cam 32 by elongated slot 321 interlockings;

-preceding slide 33 withstands on the cam surface 323 of V-arrangement cam with 331 on two arms, and its guide groove 332 is subjected to the restriction of alignment pin 43, and slide 33 only can axial displacement before making;

The core pin 341 that-core connecting rod 34 is located at front end is plugged in the axis hole 333 of preceding slide, and there are a ring neck 342 and a larger-diameter class circle 345 in the stage casing, and end has an annular groove 343;

-spring 35;

The axial section of-positioning seat 36 is " H " type, and the annular groove 361 in its stage casing is subject to alignment pin 44, is positioned in the lock sleeve 2;

37 of-center conductors are combined in the position, stage casing of core connecting rod 34;

-back slide 38 has elliptical aperture 381, the chimeric and interlock of the burr 383 of borrowing groove 382 and the annular groove of core connecting rod end 343, and below be provided with long guide groove 384, be subjected to the leading limit of alignment pin 45 and do axial displacement;

-short core pin 39 is combined on the axis hole 385 of back slide by steady pin 46 pins.

The axis hole 333 of preceding slide is an elliptical aperture, and makes class's circle 345 of core connecting rod center section part be slidably precision-fit with positioning seat axis hole 362.The stage casing axle unification center conductor 37 of core connecting rod 34, it is made by elastomeric material, is slidably precision-fit with the internal diameter of lock sleeve 2.

Because adopt such scheme, the utility model is sturdy and durable, can bear huge damage of external force and do not damage, parts such as core pin, hole clipping are difficult for abrasion, long service life; U-shaped key and lock body can directly insert sealed when sealed, are not subjected to the restriction of usage space size, and the plant of U-shaped key can exchange the limit arbitrarily, and so non-directional branch is operation easily; Assembling is convenient, cost is low; Particularly have anti-striking and rush open lock function, the axis hole of slide is designed to elliptical aperture before, and in core connecting rod stage casing one larger-diameter class circle is arranged, it in order to positioning seat axis hole interoperation, can prevent that huge striking from hitting or striking continuously and rush open lock.

Below by accompanying drawing and embodiment the utility model is further described.

Fig. 1 is known U type padlock reference diagram.

Fig. 2 is known U type padlock reference diagram.

Fig. 3 is known U type padlock operation chart.

Fig. 4 is the utility model embodiment parts expanded views.

Fig. 5 is that the utility model embodiment locks the front section view when tying.

Fig. 6 is that the utility model embodiment locks the sectional top plan view when tying.

Fig. 7 is the front section view of the utility model embodiment when unblanking.

Among the figure: 1U shape key, 2 lock sleeves, 3 horizontal closed blocks, 5 keys, 11,12 core hole clippings, 21,22 ring bolt patchholes, 31 tapered ends, 32V shape cam, slide before 33,34 core connecting rods, 35 springs, 36 positioning seats, 37 center conductors, 38 back slides, 39 short core pins, 41 steady pins, 42,43,44,45 alignment pins, 46 steady pins, 311 lock mandrels, 321 elongated slots, 322 rotation limit grooves, 323 cam surfaces, 331 2 arms, 333 axis holes, 341 core pins, 342 ring necks, 343 core connecting rod end annular grooves, 345 classes circle, 361 positioning seat axle stage casing annular grooves, 362 positioning seat axis holes, 381 back slide elliptical apertures, 382 grooves, 383 burrs, 384 long guide grooves, 385 axis holes.

Referring to Fig. 4; Present embodiment comprises a lock sleeve 2, a U-shaped key 1 and a horizontal closed block 3; The two ends leading edge of U-shaped key 1 is a ballhead, and has and run through core hole clipping 11,12.Lock sleeve 2 is hollow bushing pipes, and there is

ring key patchhole

21,22 at two ends.Laterally closed block 3 is located in the lock sleeve, and its combination has in regular turn: a known tapered end 31 and a V-arrangement cam 32, one preceding slide 33, a core connecting rod 34, a spring 35, a positioning seat 36, center conductor 37, a back slide 38 and a short core pin 39; Tapered end 31 pin 41 that is fixed is installed in sleeve pipe 2 front ends; At lock mandrel 311, periphery has rotation limit groove 322 to be subjected to the restriction of alignment pin 42 to V-arrangement cam 32 with elongated slot 321 interlockings; Before slide 33 withstand on the cam surface 323 of V-arrangement cam with 311 on two arms, its guide groove 332 is subjected to the restriction of alignment pin 43, slide 33 only can axial displacement before making; The axis hole 333 of slide before the core pin 341 of core connecting rod 34 front ends is inserted in, core connecting rod 34 ring necks 342 serial connection spring 35 and positioning seats 36, and axle unification center conductor 37; The axial section of positioning seat 36 is " H " type, and the annular groove 361 in its stage casing is subject to alignment pin 44 and is positioned in the lock sleeve 2; Back slide 38 has elliptical aperture 381, for the chimeric and interlock of the annular groove 343 of the burr 383 of groove 382 and core connecting rod end, and below establish long guide groove 384, be subjected to the leading limit of alignment pin 45 and do axial displacement; Short core pin 39 usefulness pin 46 pins are combined on the axis hole 385 of back slide.

Shown in Fig. 5,6,7; When locking, at first the two ends pin with U-shaped key 1 inserts in the

patchhole

21,22 of lock sleeve, again with key 5 rotation tapered ends 31, make V-arrangement cam 32 anglecs of rotation reach 90 ° approximately, before two arms 331 of slide 33 can prop up the concave bottom position that withstands on cam surface 323, slide 34 before making, core connecting rod 34 and back slide 38 are subjected to the effect of spring 35 and interlock displacement to the right, and then the core pin 341 of core connecting rod front end and short core pin 39 are buckled into respectively in the core hole clipping 11,12, and reach the purpose of locking.When unblanking, with key 5 tapered end 31 is swung to half-twist, 331 on two arms of slide 33 withstand on the prominent position of height of cam surface 323 before making, slide 34, core connecting rod 34 and back slide 38 are to left translation before related, and the core pin 341 of core connecting rod front end and short core pin 39 that is break away from core hole clipping 11,12 respectively, and unblank.

The utlity model has and prevent that striking the particular design that rushes open lock is: the axis hole 333 of preceding slide is designed to elliptical aperture, and establishes a larger-diameter class circle 345, make class's circle 345 be slidably precision-fit with positioning seat axis hole 362 in core connecting rod stage casing; When horizontal closed block 3 is subjected to big external impacts (or knocking), pin heart connecting rod 34 has axial displacement to break away from the trend of locking because of the reaction of impact force, but the stressed generation strain effects of the oval axis hole 333 of preceding slide and core connecting rod 34, make core connecting rod 34 when falling back displacement, because of class circle 345 can't be aimed at positioning seat axis hole 362, so can not strike and hit or strike continuously to hit and unblank, so safe and reliable because of huge power.

Rush open lock for guaranteeing anti-striking, special at the stage casing of core connecting rod 34 axle unification center conductor 37, it is to be made by elastomeric material, can be slidably with the internal diameter of lock sleeve 2 and cooperate, to guarantee that core connecting rod 34 is on the central axis when the normal running, the axis hole 333 of slide influences the open and close lock because of the abrasion reaming causes core connecting rod 34 flat decentre axis before avoiding.

Claims

1, a kind of U type padlock, it is made up of U-shaped key (1), lock sleeve (2) and tapered end, and it is characterized in that has horizontal closed block (3) in the lock sleeve (2):

The two ends leading edge of a, U-shaped key (1) is a ballhead, and has core hole clipping (11), (12);

B, lock sleeve (2) are the hollow bushing pipe, and there are ring key patchhole (21), (12) in two ends;

C, horizontal closed block (3) are located in the lock sleeve (2), and its composition has in regular turn:

-tapered end (31) pin (41) that is fixed is installed in sleeve pipe (2) front end;

On lock mandrel (311), periphery has rotation limit groove (322) to be subjected to alignment pin (42) restriction to-V-arrangement cam (32) by elongated slot (321) interlocking;

-preceding slide (33) withstands on the cam surface (323) of V-arrangement cam with two arms (331), and its guide groove (332) is subjected to the restriction of alignment pin (43), makes the preceding slide (33) only can axial displacement;

The core pin (341) that-core connecting rod (34) is located at front end is plugged in the axis hole (333) of preceding slide, and there are ring neck (342) and larger-diameter class's circle (345) in the stage casing, and end has an annular groove (343);

-spring (35);

The axial section of-positioning seat (36) is " H " type, and the annular groove in its stage casing (361) is subject to alignment pin (44), is positioned in the lock sleeve (2);

-center conductor (37) axle is combined in the position, stage casing of core connecting rod (34);

-back slide (38) has elliptical aperture (381), and the burr (383) of borrowing groove (382) is chimeric and interlock with the annular groove (343) of core connecting rod end, and below be provided with long guide groove (384), be subjected to the leading limit of alignment pin (45) and do axial displacement;

-short core pin (39) is combined on the axis hole (385) of back slide by steady pin (46) pin.

2, U type padlock as claimed in claim 1, the axis hole (333) of slide is an elliptical aperture before it is characterized in that, and makes class's circle (345) of core connecting rod center section part be slidably precision-fit with positioning seat axis hole (362).

3, U type padlock as claimed in claim 1 or 2 is characterized in that the stage casing axle unification center conductor (37) of core connecting rod (34), and it is made by elastomeric material, is slidably precision-fit with the internal diameter of lock sleeve (2).