CN102606000B

CN102606000B - Safety lock

Info

Publication number: CN102606000B
Application number: CN201210094302.0A
Authority: CN
Inventors: 张春贺
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-04-01
Filing date: 2012-04-01
Publication date: 2015-02-18
Anticipated expiration: 2032-04-01
Also published as: CN102606000A

Abstract

The invention relates to a safety lock. A plug is divided into three sections, a sleeve is fixed to a rear plug through a screw, a pin A is inserted into grooves of the outer circle of a front plug and a middle plug, and four springs are arranged in the sleeve. Rectangular holes A and rectangular holes B are respectively arranged in the middle plug and the rear plug, and two rectangular bars A with the same section and the same length are placed in each rectangular hole A and abutted to the corresponding springs. The middle plug is provided with a small shaft and fixed to a clamp hook, two rectangular bars B with the same section and different lengths are placed in each rectangular hole B and abutted to the rectangular bars A, and the other end of each rectangular bar B is provided with notches with different notches. The front plug and the middle plug are fixed by a pin B, and a circular hole is arranged in the front plug. A key is provided with cylindrical claws corresponding to plug holes, the lengths of the cylindrical claws are different, the length of a step opening at an end of each cylindrical claw corresponds to that of each notch of the rectangular bars B, and each cylindrical claw is provided with a shallow notch groove. When the key is inserted into the plug to overlap an interface with an end face, the springs are clamped into the shallow notch grooves, and the key rotates to unlock. The safety lock is simple in structure, low in interchangeability and fine in antitheft effect.

Description

Safety lock

Technical field

The present invention relates to a kind of lock, particularly a kind of safety lock that difficulty is large and mutual opening rate is low being convenient to manufacture, technology unlocking.

Background technology

At present, the lock core that market uses is of a great variety, its internal construction is substantially identical, the mutual opening rate of lock is high, as long as no matter key size and shape can inject in lockhole just may open, because lock core has certain rule, as long as even have a look at key, make a key more just can unblank, anti-theft feature is very low.

Summary of the invention

The present invention for solve in known technology the technical problem that exists and provide a kind of and be convenient to manufacture, the safety lock that difficulty is large and mutual opening rate is low of technology unlocking.

The technical scheme that the present invention takes for the technical problem existed in solution known technology is: safety lock includes lock core and key, it is characterized in that:

1.. lock core comprises: sleeve, rear lock core, middle lock core and front lock core, sleeve is fixed along axis with screw and rear lock core, two other A pin is inserted in the arc groove of middle lock core and front lock core cylindrical 1/4th respectively, pin and arc groove sliding fit, radially with four pellets in 90 ° mutually in sleeve, the rearward end of sleeve has been screwed cover plate, have the A rectangular opening being mutually decile in rear lock core vertically, be placed with the A rectangular strip that two cross section equal length are also identical in each A rectangular opening respectively, spring is laid in the rear end of its A rectangular strip, one end of middle lock core is with little axle, little axle and middle lock core integral, described little axle in the circular aperture in rear core through and little axle and circular hole measure-alike, little the tip of the axis mills out flat groove and is inserted in grab, one end of grab is with the screw-threaded coupling on hook other end nut and little axle, the B rectangular opening being mutually decile is had vertically in middle lock core, respectively be placed with two in B rectangular opening respectively cross section is identical and the B rectangular strip that length is different, after one end of the B rectangular strip of every two different lengths is withstood with the A rectangular strip in A rectangular opening respectively, the other end of every two B rectangular strips just forms the breach of different length, described A rectangular opening is equal with the size position of B rectangular opening, middle lock core is laterally fixedly connected with integral with front lock core by two B pins, and four pellets on sleeve are each passed through in the corresponding aperture of front lock core, and each pellet all stretches out in front lock core, has the circular hole being mutually decile in front lock core vertically,

2.. with the cylindrical pawl corresponding with lock core hole on the disk of key, the length of each cylindrical pawl is different, the front end of its end cuts out the ladder mouth of different length, also with 30 ° of grooves, the notch length of the B rectangular strip that the length of its ladder mouth is different from length in the B rectangular opening of lock core is corresponding, and the middle part of each cylindrical pawl is with light engraving groove.

The present invention can also adopt following technical scheme:

Described pellet is two of heading on little spring is one group of formation;

Having vertically in described rear lock core, middle lock core in the A rectangular opening being mutually decile and front lock core and having the circular hole being mutually decile is vertically 2-7 holes, and the circular hole in A rectangular opening, B rectangular opening and front lock core should be mutually corresponding;

On the disk of described key with cylindrical pawl corresponding with lock core hole be 2-7.

The advantage that the present invention has and good effect are: structure is simple, depart from the unicity of original lock core structure, first key will overcome pellet resistance when injecting lock core, insert until after A, B rectangular strip in each hole of lock core puts in place more inward, namely now turn clockwise key 90 °, and the part before front lock core, middle lock core, B rectangular strip and pellet are inserted in lock core rotates simultaneously.Can rotate and be opened by lock, mutual opening rate is low, and the difficulty of technology unlocking is large, good anti-theft effect.

Accompanying drawing explanation

Fig. 1 is the structural representation of lock core entirety;

Fig. 2 is the plan structure schematic diagram of Fig. 1;

Fig. 3 is the left TV structure schematic diagram of Fig. 1;

Fig. 4 is A-A sectional structure schematic diagram of Fig. 1;

Fig. 5 is B-B sectional structure schematic diagram of Fig. 1;

Fig. 6 is C-C sectional structure schematic diagram of Fig. 1;

Fig. 7 is the structural representation of key;

Fig. 8 is the plan structure schematic diagram of Fig. 7;

Fig. 9 is the left TV structure schematic diagram of Fig. 7.

In Fig. 1-Fig. 9: 1. sleeve, 2. rear lock core, lock core 3., lock core 4., 5. screw, 6.A pin, 7. arc groove, 8. pellet, 9. cover plate, 10.A rectangular strip, 11. springs, 12. little axles, 13. grabs, 14.B rectangular strip, 15.B pin, 16. circular holes, 17. keys, 18. disks, 19. cylindrical pawls, 20. ladder mouths, 21. light engraving grooves, 22. grooves, 23. interfaces, 24.B rectangular strip rear end face.

Detailed description of the invention

For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:

The safety lock citing being now four with lock core hole is illustrated: as shown in Fig. 1-Fig. 3: lock core comprises: sleeve 1, rear lock core 2, middle lock core 3 and front lock core 4, sleeve 1 is fixed along axis with screw 5 and rear lock core 2, as Fig. 5, shown in Fig. 6: two A pins 6 are inserted in the arc groove 7 of middle lock core 3 and front lock core 4 cylindrical 1/4th respectively, pin 6 and arc groove 7 sliding fit, when central lock core 3 rotates together with front lock core 4, pin 6 slides in arc groove 7, misplace to prevent middle lock core 3 and front lock core 4, radially with four pellets 8 in 90 ° mutually in sleeve 1, pellet 8 is two of heading on little spring is one group of formation, the rearward end of sleeve 1 has been screwed cover plate 9, as shown in Figure 4: axially have A in 90 ° mutually tetra-rectangular openings in rear lock core 2, be placed with the also identical A rectangular strip 10 of two cross section equal length in every four A rectangular openings respectively, spring 11 is laid in the rear end of its A rectangular strip 10, one end of middle lock core 3 is with little axle 12, little axle 12 is integrated with middle lock core 3, described little axle in the circular aperture in rear core through and little axle and circular hole measure-alike, the end of little axle 12 mills out flat groove and is inserted in grab 13, nut check is also used with hook in one end of grab 13, as shown in Figure 5: in middle lock core 3, also have B in 90 ° mutually tetra-rectangular openings vertically, be placed with two in every B tetra-rectangular openings respectively cross section is identical and the B rectangular strip 14 that length is different, after one end of the B rectangular strip 14 of every two different lengths is withstood with the A rectangular strip 10 in A rectangular opening respectively, the other end of every two B rectangular strips 14 just forms the breach of different length, middle lock core 3 is laterally fixedly connected with integral with front lock core 4 by two B pins 15, to ensure that they rotate together, sleeve 1 is each passed through in the corresponding aperture of front lock core 4 with four pellets 8 of two group that little spring heads on, each pellet 8 stretches out in front lock core 4, axially has four circular holes 16 in 90 ° mutually in front lock core 4, as shown in Fig. 7-Fig. 9: with corresponding with lock core hole four cylindrical pawls 19 on the disk 18 of key 17, each cylindrical pin 19 length different, its end cuts out ladder mouth 20, in the length of its ladder mouth 20 and the B of lock core tetra-rectangular openings, the ladder mouth length of the B rectangular strip 14 that length is different is corresponding, the length of each cylindrical pawl 19 is different, the front end of its end is with 30 ° of grooves 22, groove 22 cuts out the ladder mouth 20 of different length below, the notch length of the B rectangular strip 14 that the length of its ladder mouth 20 is different from length in the B rectangular opening of lock core is corresponding, the middle part of each cylindrical pawl 19 is with light engraving groove 21.

During use, four on key 17 cylindrical pawls 19 insert in the corresponding aperture of front lock core 4, pellet 8 backs down by the groove 22 of four cylindrical pawl 19 front ends, make in pellet 8 holddown spring indentation marble hole, now, four cylindrical pawls 19 can continue the corresponding aperture injecting lock core 4, because the front end ladder mouth 20 of four cylindrical pawls 19 is uneven in length, it must be different with length the ladder mouth length of B rectangular strip 14 corresponding and identical after, the B rectangular strip 14 that four cylindrical pawls 19 just can be made together to oppress four groups of length different moves inwards simultaneously, Compress Spring 11, and the B rectangular strip rear end face 24 that four groups of length is different can be on same facade, when they move to this facade is overlapped with the interface 23 of middle lock core 3 time, pellet 8 is just stuck in the light engraving groove 21 on four cylindrical pawls 19, light engraving groove 21 serves positioning action, middle lock core 3 and front lock core 4 could be accompanied together with the key 17 with four cylindrical pawls 19 and turn clockwise 90 °, namely now turn clockwise key 90 °, make front lock core 4, middle lock core 3, the part that B rectangular strip 14 and pellet 8 insert in front lock core 4 rotates simultaneously, simultaneously, under the drive that little axle 12 rotates on middle lock core 3, grab 13 is made to stir unlocking mechanism in lock, open lock.

Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.

Claims

1. a safety lock, it comprises lock core and key, it is characterized in that:

1.. lock core comprises: sleeve (1), rear lock core (2), middle lock core (3) and front lock core (4), sleeve (1) is fixed along axis with screw (5) and rear lock core (2), two other A pin (6) is inserted in the arc groove (7) of middle lock core (3) and front lock core (4) cylindrical 1/4th respectively, pin (6) and arc groove (7) sliding fit, radially with four pellets (8) in 90 ° mutually in sleeve (1), the rearward end of sleeve (1) has been screwed cover plate (9), the A rectangular opening being mutually decile is had vertically in rear lock core (2), be placed with the A rectangular strip (10) that two cross section equal length are also identical in each A rectangular opening respectively, spring (11) is laid in the rear end of its A rectangular strip (10), one end of middle lock core (3) is with little axle (12), little axle (12) is integral with middle lock core (3), described little axle (12) from the circular aperture in rear core (2) through and little axle and circular hole measure-alike, the end of little axle (12) mills out flat groove and is inserted in grab (13), one end of grab (13) is with the screw-threaded coupling on hook other end nut and little axle (12), the B rectangular opening being mutually decile is had vertically in middle lock core (3), be placed with two in each B rectangular opening respectively cross section is identical and the B rectangular strip (14) that length is different, after one end of the B rectangular strip (14) of every two different lengths is withstood with the A rectangular strip (10) in A rectangular opening respectively, the other end of every two B rectangular strips (14) just forms the breach of different length, described A rectangular opening is equal with the size position of B rectangular opening, middle lock core (3) is laterally fixedly connected with integral with front lock core (4) by two B pins (15), four pellets (8) on sleeve (1) are each passed through in the corresponding aperture of front lock core (4), each pellet (8) all stretches out in front lock core (4), has the circular hole (16) being mutually decile in front lock core (4) vertically, have vertically in described rear lock core (2), middle lock core (3) be mutually decile A rectangular opening, B rectangular opening and front lock core (4) in have the circular hole (16) being mutually decile are vertically all 4 holes, circular hole (16) center in A rectangular opening, B rectangular opening and front lock core (4) should be mutually corresponding,

2.. with the cylindrical pawl (19) corresponding with lock core hole on the disk (18) of key (17), the length of each cylindrical pawl (19) is different, the front end of its end cuts out the ladder mouth (20) of different length with 30 ° of grooves (22), the notch length of the B rectangular strip (14) that the length of its ladder mouth (20) is different from length in the B rectangular opening of lock core is corresponding, and the middle part of each cylindrical pawl (19) is with light engraving groove (21); On the disk (18) of described key (17) with cylindrical pawl (19) corresponding with lock core hole be 4.

2. safety lock according to claim 1, is characterized in that: described pellet (8) is two of heading on little spring is one group of formation.