CN112727254A

CN112727254A - Mechanical lock for improving safety

Info

Publication number: CN112727254A
Application number: CN202110123973.4A
Authority: CN
Inventors: 韩文杰; 王壤
Original assignee: Ningbo Wangtong Locks Co Ltd
Current assignee: Ningbo Wangtong Locks Co Ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-04-30

Abstract

The invention discloses a mechanical lock for improving safety, which comprises an installation sleeve and a key for unlocking, wherein a lock core is matched in the installation sleeve in a rotating mode, a lock spring assembly and a lock catch component are installed on the lock core, the lock spring assembly is matched with the lock catch component, the lock core is in limit matching with the installation sleeve through the lock catch component, the lock spring assembly comprises a pair of first blades and second blades, lock grooves are formed in all four surfaces of the key, the lock grooves on the left and right surfaces of the key are matched with the first blades, the lock grooves on the upper and lower surfaces of the key are matched with the second blades, the limit matching of the lock catch component and the installation sleeve can be relieved, and the lock core can be unlocked in a rotating mode along with the key.Through first blade and the second blade on the locking spring subassembly cooperate with the keyway on the side about the key simultaneously, compare the combination number of times of traditional single blade by 3⁵Is increased to 3¹⁵The safety of the door lock is greatly improved.

Description

Mechanical lock for improving safety

Technical Field

The invention relates to the field of door locks, in particular to a mechanical lock for improving safety.

Background

The lock has a long history in China, the lock is born with a private system at the same time, the core function of the lock is to provide privacy protection for a user, the lock commonly used in the existing life is either unlocked by arranging lock grooves on two sides of a key or unlocked by arranging the lock grooves on the upper end face of the key, the two locks are matched through the shapes of the lock grooves, but in the lock produced in the same batch, the condition that a plurality of locks can be unlocked by one key easily occurs, so that great potential safety hazards exist, and all the locks which can improve the safety are urgently needed.

Disclosure of Invention

The invention provides a mechanical lock for improving safety aiming at the situation in the background technology, and effectively solves the problems in the background technology.

In order to solve the technical problem, the invention is solved by the following technical scheme: the utility model provides an improve mechanical lock of security, includes installation cover and the key that is used for the unblock, installation cover normal running fit has the lock core, install spring subassembly and fender part on the lock core, the spring subassembly with keep off the part cooperation, the lock core still passes through keep off the part with installation cover spacing cooperation, the spring subassembly includes a pair of first blade and second blade, all be equipped with a plurality of locked grooves on the four sides of key, respectively through on the key left and right sides the locked groove with on first blade cooperation and the upper and lower face the locked groove with the cooperation of second blade can be relieved keep off the part with the spacing cooperation of installation cover makes the lock core can follow the key is rotated the unblock.

Preferably, the lock cylinder is provided with a plurality of limiting holes penetrating through the lock cylinder in the radial direction, the lock spring assembly is elastically and slidably mounted in the limiting holes, the axial side wall of the lock cylinder is provided with a limiting sliding groove, the lock catch component is in sliding fit with the limiting sliding groove, the center of the lock cylinder is provided with a lock hole, and the key is matched with the lock spring assembly by being inserted into the lock hole.

Preferably, the spring assembly further comprises a return spring, a spring groove is formed in one end of the limiting hole, and the return spring is installed in the spring groove and matched with the locking spring assembly.

Preferably, first blade with the center of second blade all is equipped with the through-hole, first blade the through-hole left and right sides is equipped with left locking piece and right locking piece respectively, the second blade the downside of through-hole is equipped with down the locking piece, the key passes the through-hole, and pass through the key left and right sides the locked groove respectively with left locking piece with right locking piece cooperation, through the top and bottom the locked groove with down the locking piece cooperation.

Preferably, the side walls of the first blade and the second blade are both provided with V-shaped unlocking grooves, one side of the lock blocking component is provided with a V-shaped wedge block, when the wedge block is matched with the unlocking grooves, the lock core is in an unlocking state, two ends of the lock blocking component are connected with baffle plates through unlocking springs, and the baffle plates are matched with the inner wall of the mounting sleeve.

Preferably, a rotating stop block is fixed at one end, far away from the lock hole, of the lock cylinder, a pair of stop blocks is symmetrically arranged on the inner wall of one end of the mounting sleeve in the center, and the rotation angle of the lock cylinder during unlocking is not more than 90 degrees through matching of the stop blocks and the rotating stop blocks.

Preferably, be close to on the lock core the one end of lockhole is equipped with dustproof spout, install dustproof mechanism on the dustproof spout, dustproof mechanism includes a pair of dustproof piece and a pair of dustproof spring, dustproof piece with dustproof spout sliding fit, the terminal surface that dustproof piece mutually supported is the circular arc inclined plane, be equipped with the recess on the non-cooperation tip of dustproof piece, dustproof spring mounting in the recess and with the cooperation of lock core inner wall.

Preferably, the lock cylinder is close to still be equipped with the draw-in groove on the terminal surface of lockhole, the lock cylinder is close to still install the apron in the tip of lockhole, the apron through the fixture block that is equipped with on the lateral wall with the draw-in groove joint, the apron center is equipped with the through-hole, be fixed with the lug on the lateral wall about the through-hole.

Preferably, the installation cover is installed in the fixed cover, be equipped with location slider and spacing groove on the lateral wall of installation cover, be equipped with the location spout on the inside wall of fixed cover, be equipped with spacing hole on the lateral wall of fixed cover, the spacing groove with spacing hole passes through the spacer pin and connects.

The invention has the beneficial effects that:

1. through first blade and the second blade on the locking spring subassembly cooperate with the keyway on the side about the key simultaneously, compare the combination number of times of traditional single blade by 3⁵Is increased to 3¹⁵The safety of the door lock is greatly improved.

2. Through set up the lug on the apron, can prevent to lead to the fact the damage to the lock core owing to taking wrong key when unblanking to influence the result of use.

3. Through the tip installation dustproof mechanism at the lock core, can guarantee when not inserting the key that the dustproof piece is in the closure state, and then can guarantee in dust or steam can't enter into the lock core to reduce the ageing of lock core, improve the life and the safety in utilization of lock core.

4. The left locking block and the right locking block which are arranged on the two first blades and the second blade are arranged, and the lower locking block is matched with the locking groove, so that the unlocking difficulty of the lock can be greatly improved, and the safety of the lock is improved.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a top sectional view of the present invention.

Fig. 4 is a schematic structural diagram of the lock cylinder of the invention.

Fig. 5 is a schematic view of the structure of the blocking member of the present invention.

Fig. 6 is a schematic structural view of the dustproof mechanism of the present invention.

Fig. 7 is a schematic view of the structure of the key of the present invention.

Fig. 8 is a schematic diagram of the bolt assembly of the present invention.

Fig. 9 is a schematic structural view of the mounting sleeve of the present invention.

Fig. 10 is a schematic view of the structure of the fixing sleeve of the present invention.

In the figure: the lock comprises a key 1, a lock groove 101, a fixed sleeve 2, a limiting hole 201, a positioning sliding groove 202, an installation sleeve 3, a limiting groove 301, a positioning sliding block 302, a stop block 303, a blocking groove 304, a limiting pin 4, a cover plate 51, a stop block 511, a convex block 512, a dustproof block 52, a groove 521, a dustproof spring 53, a lock spring assembly 6, a first blade 61, a left lock block 611, a right lock block 612, a second blade 62, a lower lock block 621, a reset spring 63, an unlocking groove 64, a locking component 7, a wedge block 701, a stop plate 81, an unlocking spring 82, a lock core 9, a lock hole 901, a limiting sliding groove 902, a limiting hole 903, a rotating stop block 904, a dustproof sliding groove 905, a clamping groove 906 and a spring groove 907.

Detailed Description

The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments described herein without the need for inventive work, are within the scope of the present invention.

Embodiments as shown in fig. 1 to 10, a mechanical lock for improving security includes a mounting sleeve 3 and a key 1 for unlocking, a lock core 9 is rotationally matched in the mounting sleeve 3, a lock spring assembly 6 and a lock catch component 7 are arranged on the lock core 9, the lock spring assembly 6 is matched with the lock catch part 7, the lock core 9 is in limit matching with a blocking groove 304 arranged on the inner wall of the mounting sleeve 3 through the lock catch part 7, the bolt assembly 6 comprises a pair of first blades 61 and second blades 62, a plurality of lock grooves 101 are formed on four sides of the key 1, and are respectively matched with the first blades 61 through the lock grooves 101 on the left and right sides of the key 1 and the lock grooves 101 on the upper and lower sides are matched with the second blades 62, the limit matching of the lock catch component 7 and the mounting sleeve 3 can be released, so that the lock cylinder 9 can be rotated and unlocked along with the key 1.

Furthermore, a plurality of limiting holes 201 penetrating through the lock cylinder 9 are formed in the radial direction of the lock cylinder 9, the spring assembly 6 is elastically installed in the limiting holes 201 in a sliding manner, a limiting sliding groove 902 is formed in the axial side wall of the lock cylinder 9, the lock catch component 7 is in sliding fit with the limiting sliding groove 902, a lock hole 901 is formed in the center of the lock cylinder 9, and the key 1 is matched with the spring assembly 6 by being inserted into the lock hole 901; the spring assembly further comprises a return spring 63, one end of the limiting hole 201 is provided with a spring groove 907, the return spring 63 is installed in the spring groove 907 and is matched with the lock spring assembly 6, and the return spring 63 can ensure that the lock spring assembly 6 is in a locking state when the key 1 is pulled out.

Further, first blade 61 with the center of second blade 62 all is equipped with the through-hole, first blade 61 the through-hole left and right sides is equipped with left locking piece 611 and right locking piece 612 respectively, second blade 62 the downside of through-hole is equipped with down locking piece 621, key 1 passes the through-hole, and through key 1 left and right sides the locked groove 101 respectively with left locking piece 611 with right locking piece 612 cooperates, through the upper and lower face the locked groove 101 with down locking piece 621 cooperates.

Further, the side walls of the first blade 61 and the second blade 62 are both provided with a V-shaped unlocking groove 64, one side of the blocking component 7 is provided with a V-shaped wedge 701, when the wedge 701 is matched with the unlocking groove 64, the lock cylinder 9 is in an unlocking state, two ends of the blocking component 7 are connected with a baffle 81 through an unlocking spring 82, and the baffle 81 is matched with the inner wall of the mounting sleeve 3.

Furthermore, a rotating stop block 904 is fixed at one end of the lock cylinder 9, which is far away from the lock hole 901, a pair of stop blocks 303 are arranged on the inner wall of one end of the mounting sleeve 3 in a central symmetry manner, and the rotation angle of the lock cylinder 9 during unlocking is not more than 90 ° due to the cooperation between the stop blocks 303 and the rotating stop block 904.

Furthermore, a dustproof chute 905 is arranged at one end, close to the lock hole 901, of the lock cylinder 9, a dustproof mechanism is installed on the dustproof chute 905, the dustproof mechanism comprises a pair of dustproof blocks 52 and a pair of dustproof springs 53, the dustproof blocks 52 are in sliding fit with the dustproof chute 905, the end faces, matched with each other, of the dustproof blocks 52 are arc inclined faces, a groove 521 is formed in the non-matched end portion of the dustproof block 52, and the dustproof springs 53 are installed in the groove 521 and are matched with the inner wall of the lock cylinder 9; when the key 1 is not inserted, the dust-proof mechanism is in a closed state to prevent dust and the like from entering the inside of the key cylinder 9.

Furthermore, a clamping groove 906 is further formed in the end face, close to the lock hole 901, of the lock cylinder 9, a cover plate 51 is further installed in the end portion, close to the lock hole 901, of the lock cylinder 9, the cover plate 51 is clamped with the clamping groove 906 through a clamping block 511 arranged on the side wall of the cover plate 51, a through hole is formed in the center of the cover plate 51, protruding blocks 512 are fixed on the left side wall and the right side wall of the through hole, and the key can be prevented from being taken out to unlock through the protruding blocks 512.

Further, installation cover 3 installs in the inside of fixed cover 2, be equipped with location slider 302 and spacing groove 301 on the lateral wall of installation cover 3, be equipped with location spout 202 on the inside wall of fixed cover 2, be equipped with spacing hole 201 on the lateral wall of fixed cover 2, spacing groove 301 with spacing hole 201 passes through spacer pin 4 and connects.

The specific working process is as follows: when the key 1 is not inserted, the first blade 61 and the second blade 62 on the locking spring assembly 6 are respectively overlapped under the action of the return spring 63, namely, the unlocking grooves 64 on the first blade 61 and the second blade 62 are in a dislocation state at the moment, and then the wedge block 701 on the locking component 7 is extruded to push the locking component 7 to be matched with the blocking groove arranged on the inner wall of the mounting sleeve 3 along the limiting sliding groove 902, so that the lock cylinder 9 and the mounting sleeve 3 are limited, and the unlocking spring 82 is in a compression state at the moment, namely, the lock cylinder 9 is in a locking state at the moment; meanwhile, the dustproof mechanism is also in a closed state for dust prevention.

When unlocking is needed, the key 1 is only required to be inserted into the through hole in the cover plate 51 and to push open the dust-proof plate on the dust-proof mechanism to the inside of the lock cylinder 9, in the process of inserting the key 1, the lock grooves 101 on the left and right sides of the key 1 are respectively matched with the left lock block 611 and the right lock block 612 on the first blade 61, so that the first blade 61 is extruded to the unlocking position, meanwhile, the lock grooves 101 on the upper side or the lower side of the key 1 are matched with the lower lock block 621 on the second blade 62, so that the second blade 62 is extruded to the unlocking position, at the moment, the unlocking grooves 64 on the first blade 61 and the second blade 62 are in the overlapping state, further, the locking component 7 is matched with the unlocking grooves 64 through the wedge block 701 under the elastic force of the unlocking spring 82, so as to be separated from the matching with the blocking groove on the inner wall of the mounting sleeve 3, namely, at the lock cylinder 9 is in the unlocking state, then, the lock cylinder 9, after the unlocking is completed, the unlocking process needs to be completed by the cooperation between the left locking block 611 and the right locking block 612 on the first blade 61 and the lower locking block 621 on the second blade 62, so that the difficulty in technical unlocking can be effectively improved, and the safety of the lock is improved.

Claims

1. A mechanical lock with improved security, comprising a mounting sleeve (3) and a key (1) for unlocking, characterized in that: a lock core (9) is rotationally matched in the mounting sleeve (3), a lock spring component (6) and a lock stop component (7) are arranged on the lock core (9), the lock spring assembly (6) is matched with the lock catch component (7), the lock core (9) is in limit matching with the mounting sleeve (3) through the lock catch component (7), the bolt assembly (6) comprises a first blade (61) and a second blade (62), lock grooves (101) are arranged on four surfaces of the key (1) and are respectively matched with the first blade (61) through the lock grooves (101) on the left surface and the right surface of the key (1) and matched with the second blade (62) through the lock grooves (101) on the upper surface and the lower surface of the key (1), the limit matching of the locking part (7) and the mounting sleeve (3) can be released, so that the lock cylinder (9) can be unlocked by rotating with the key (1).

2. A mechanical lock with improved security according to claim 1, wherein: the lock is characterized in that a plurality of limiting holes (201) are formed in the lock cylinder (9), the lock spring assembly (6) is elastically installed in the limiting holes (201) in a sliding mode, a limiting sliding groove (902) is formed in the axial side wall of the lock cylinder (9), the lock catch component (7) is in sliding fit with the limiting sliding groove (902), a lock hole (901) is formed in the center of the lock cylinder (9), and the key (1) is matched with the lock spring assembly (6) through being inserted into the lock hole (901).

3. A mechanical lock with improved security according to claim 2, wherein: the spring assembly further comprises a return spring (63), one end of the limiting hole (201) is provided with a spring groove (907), and the return spring (63) is installed in the spring groove (907) and matched with the locking spring assembly (6).

4. A mechanical lock with improved security according to claim 1, wherein: first blade (61) with the center of second blade (62) all is equipped with the through-hole, first blade (61) the through-hole left and right sides is equipped with left locking piece (611) and right locking piece (612) respectively, second blade (62) the downside of through-hole is equipped with down locking piece (621), key (1) passes the through-hole, and through two sides about key (1) locked groove (101) respectively with left locking piece (611) with right locking piece (612) cooperation, through upper and lower locked groove (101) with down locking piece (621) cooperation.

5. A mechanical lock with improved security according to claim 1, wherein: the locking mechanism is characterized in that an unlocking groove (64) of a V shape is formed in the side wall of each of the first blade (61) and the second blade (62), a wedge block (701) of the V shape is arranged on one side of the locking component (7), when the wedge block (701) is matched with the unlocking groove (64), the lock cylinder (9) is in an unlocking state, two ends of the locking component (7) are connected with a baffle plate (81) through an unlocking spring (82), and the baffle plate (81) is matched with the inner wall of the mounting sleeve (3).

6. A mechanical lock with improved security according to claim 2, wherein: one end, far away from the lock hole (901), of the lock cylinder (9) is fixed with a rotary stop block (904), a pair of stop blocks (303) is arranged on the inner wall of one end of the installation sleeve (3) in a central symmetry mode, and through matching of the stop blocks (303) and the rotary stop block (904), the rotation angle of the lock cylinder (9) during unlocking is not more than 90 degrees.

7. A mechanical lock with improved security according to claim 2, wherein: close to on lock core (9) the one end of lockhole (901) is equipped with dustproof spout (905), install dustproof mechanism on dustproof spout (905), dustproof mechanism includes a pair of dustproof piece (52) and a pair of dustproof spring (53), dustproof piece (52) with dustproof spout (905) sliding fit, the terminal surface that dustproof piece (52) mutually supported is the circular arc inclined plane, be equipped with recess (521) on dustproof piece (52) non-cooperation tip, dustproof spring (53) are installed in recess (521) and with lock core (9) inner wall cooperation.

8. A mechanical lock with improved security according to claim 2, wherein: the lock cylinder is characterized in that a clamping groove (906) is further formed in the end face, close to the lock hole (901), of the lock cylinder (9), a cover plate (51) is further installed in the end portion, close to the lock hole (901), of the lock cylinder (9), the cover plate (51) is connected with the clamping groove (906) in a clamping mode through a clamping block (511) arranged on the side wall of the cover plate, a through hole is formed in the center of the cover plate (51), and protruding blocks (512) are fixed on the left side wall and the right side wall.

9. A mechanical lock with improved security according to claim 1, wherein: install the inside at fixed cover (2) in installation cover (3), be equipped with location slider (302) and spacing groove (301) on the lateral wall of installation cover (3), be equipped with location spout (202) on the inside wall of fixed cover (2), be equipped with spacing hole (201) on the lateral wall of fixed cover (2), spacing groove (301) with spacing hole (201) are connected through spacer pin (4).