CN209704214U - A kind of padlock - Google Patents

Abstract

The utility model relates to mechanical locks, it is proposed a kind of padlock, it include lock body and lock tongue, lockhole and dead bolt hole are had at left and right sides of the front of lock body, one end of latch bolt spring and lock tongue is placed in dead bolt hole, there is lock tongue bayonet at the nearly lock body of lock tongue, cryptographic block slot is provided in the middle part of lock body, one cryptographic block is placed in cryptographic block slot, there is sliding block inside cryptographic block and several pellets pair are distributed with, its front end has lock pin, in by the card slot of Bore card insertion cryptographic block, when whole pellets in its card hole and sliding block are to matching, Bore card can push forward sliding block and then drive lock pin, the lock pin that cryptographic block slot side corresponds to cryptographic block in lock body is laterally provided with lock pin mouth and lock pin card slot, the front of cryptographic block slot is also provided with spline, the spline mouth of connection lockhole and dead bolt hole is had at left and right sides of spline, spline Two sides point or so be placed with spline, middle part traverse sets one block of supporting plate, it is provided with supporting plate spring eye in the middle part of spline and is placed with supporting plate spring, supporting plate compresses spline under the action of supporting plate spring, make the tail portion of spline pass through spline notch to be located in cryptographic block slot, there is strong security, key to be convenient for carrying, change the easy substantive distinguishing features of lock for the utility model.

Description

A kind of padlock

Technical field

The utility model relates to mechanical locks, especially padlock.

Background technique

Lockset has a wide range of applications in daily life.Existing lockset is probably divided into two major classes: mechanical lock and electronics Lock, mechanical lock are divided into standard machinery lock and cipher code mechanical lock again.

Standard machinery lock cost of manufacture is lower, most widely used, but its confidentiality is poor, and key is easy to be replicated, key It is not only thick but again, go out that it is very inconvenient to wear with oneself.In addition, integral replacing or replacement lock gall are usually wanted when mechanical lock will be replaced, than It is cumbersome.

Cipher code mechanical lock will remember password without wearing key, and the password to be remembered of people is too many now, be easy confusion.

The confidentiality of electronic lock is compared with mechanical lock height, but it needs to be arranged special decoding circuit, and the manufacture of lock is complex, Cost is also high, due to using large scale integrated circuit, is easy to appear failure.

Utility model content

The purpose of this utility model is to propose a kind of padlock, uses password block structure, has thin card style key, side Portable belt, it is often more important that change lock and do not need replacement lock gall, only replace cryptographic block, and it is very easy to replace cryptographic block.

The purpose of this utility model can be realized by following technical solution.

A kind of padlock includes lock body and lock tongue, has lockhole and dead bolt hole, lock tongue at left and right sides of the front of lock body One end of spring and hook-type lock tongue is placed in dead bolt hole, and the other end of lock tongue can be inserted into lockhole, has lock at the nearly lock body of lock tongue Tongue bayonet, when the both ends of lock tongue are located in lockhole and dead bolt hole, 2 lock tongue bayonets be located at lockhole and dead bolt hole It is interior；Cryptographic block slot is provided in the middle part of lock body, a cryptographic block is placed in cryptographic block slot, cross section and the cryptographic block phase of cryptographic block slot When.

The cryptographic block is Rectangular Plate Structure, the use of its match-drill card, and the inside of cryptographic block has sliding block and is distributed There are several pellets that there is lock pin to, its front end, there is card slot in cryptographic block, several card holes are distributed on Bore card, When Bore card is inserted into card slot, whole pellets in its card hole and sliding block are to matching when, cunning can be pushed forward Block drives lock pin to move inward in turn.

The lock pin that cryptographic block slot side corresponds to cryptographic block in lock body is laterally provided with lock pin mouth and lock pin card slot, cryptographic block slot Front is also provided with spline.

The spline is connected to cryptographic block slot by spline notch, and connection lockhole is had at left and right sides of spline With the spline mouth of dead bolt hole, the two sides point of spline or so are placed with a pair of of spline, middle part traverse sets one block of supporting plate, and spline is arc The hardened structure of shape, back have convex block, and abdomen has boss, is provided with supporting plate spring eye in the middle part of spline and is placed with supporting plate bullet Spring, supporting plate are compressed spline by convex block under the action of supporting plate spring, so that the tail portion of spline is passed through spline notch and are located at password In block slot.

The both ends of locked state, lock tongue are located in lockhole and dead bolt hole, the password for being entirely located in lock body of cryptographic block In block slot, the front end of cryptographic block is connected to the end of spline, and the front end of spline is made to stretch out the lock tongue card that spline mouth is inserted into lock tongue In mouthful, supporting plate spring-compressed, the upper end of lock pin entersLock bodyLock pin mouth.

Unlocking condition takes in the lock pin of cryptographic block all in cryptographic block by the Bore card of password match, and supporting plate exists Spline is pushed by convex block under the action of supporting plate spring, so that the tail portion of spline is passed through spline notch and is located in cryptographic block slot, flower In the front income spline mouth of key, lock tongue rises the lockhole for making its other end leave lock body under the action of latch bolt spring.

Locked state is become from unlocking condition, directly push ahead cryptographic block and simultaneously enters lock tongue end plug in lockhole i.e. It can.

The utility model has following substantive distinguishing features outstanding and marked improvement.

1. the utility model strong security, as long as the pellet being arranged in cryptographic block has 10 groups or more, by arranging pellet pair Different number and position, the cryptographic block of different passwords can be designed, and the duplicate probability of the password of these cryptographic blocks is minimum. A possibility that illegal unlock, can greatly reduce.

2. the utility model structure is simple, card style key is convenient for carrying, and is changed lock and is not needed replacement lock gall, only replaces close Code block, and it is very easy to replace cryptographic block.

Detailed description of the invention

Fig. 1 is structure (locked state) schematic diagram of the utility model.

Fig. 2 is the left view (broken section) of Fig. 1.

Fig. 3 is structure (unlocking condition) schematic diagram of the utility model.

Fig. 4 is the left view (broken section) of Fig. 3.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawing.

Embodiment

A kind of padlock includes lock body 5 and lock tongue 2, has lockhole 53 and dead bolt hole at left and right sides of the front of lock body 5 52, one end of latch bolt spring 21 and hook-type lock tongue 2 is placed in dead bolt hole 52, and the other end of lock tongue 2 can be inserted into lockhole 53, lock tongue There is lock tongue bayonet 20, when the both ends of lock tongue 2 are located in lockhole 53 and dead bolt hole 52,2 lock tongues at 2 nearly lock bodies 5 Bayonet 20 is located in lockhole 53 and dead bolt hole 52.

The middle part of lock body 5 is provided with cryptographic block slot 50, and a cryptographic block 1 is placed in cryptographic block slot 50, cryptographic block slot 50 it is cross-section Face and cryptographic block 1 are suitable.

The cryptographic block 1 is Rectangular Plate Structure, the use of its match-drill card 4, and the inside of cryptographic block 1 has sliding block and divides Being furnished with several pellets has lock pin 11 to, its front end, has card slot in cryptographic block 1, several cards are distributed on Bore card 4 Film perforation, when Bore card 4 is inserted into card slot, whole pellets in its card hole and sliding block are to matching when, can be forward It pushes sliding block and then lock pin 11 is driven to move inward.

The lock pin 11 that 50 side of cryptographic block slot corresponds to cryptographic block in lock body 5 is laterally provided with lock pin mouth 502 and lock pin card slot 501, the front of cryptographic block slot 50 is also provided with spline 51.

The spline 51 is connected to cryptographic block slot 50 by spline notch, and the left and right sides of spline 51 has company The spline mouth of logical lockhole 53 and dead bolt hole 52, two sides point of spline 51 or so are placed with a pair of of spline 3, middle part traverse sets one piece Supporting plate 31, spline 3 are arc plate structure, and back has convex block 33, and abdomen has boss 34, and the middle part of spline 51 is provided with support Flat spring hole is simultaneously placed with supporting plate spring 32, and supporting plate 31 passes through convex block 33 and boss 34 for spline under the action of supporting plate spring 32 3 compress, and so that the tail portion of spline 3 is passed through spline notch and are located in cryptographic block slot 50.

Locked state, the both ends of lock tongue 2 are located in lockhole 53 and dead bolt hole 52, and cryptographic block 1 is entirely located in lock body 5 Cryptographic block slot 50 in, the front end of cryptographic block 1 is connected to the end of spline 3, make its front end stretch out spline mouth be inserted into lock tongue 2 Lock tongue bayonet 20 is interior, supporting plate spring 32 compresses, and the upper end of lock pin 11 entersLock body5 lock pin mouth 502.

Unlocking condition takes in the lock pin 11 of cryptographic block 1 all in cryptographic block 1 by the Bore card 4 of password match, support Plate 31 is pushed spline 3 by convex block 33 and boss 34 under the action of supporting plate spring 32, and the tail portion of spline 3 is made to pass through spline Mouth is located in cryptographic block slot 50, and in the front income spline mouth of spline 3, lock tongue 2 rises under the action of latch bolt spring 21 makes it The lock tongue bayonet 20 at both ends leaves the lockhole 53 of lock body 5.

Bore card 4 is further unclamped or takes out, lock pin 11 is located at the lock pin of lock body 5 from cryptographic block stretching, the upper end again In card slot 501.

Locked state (Fig. 1) is become from unlocking condition (Fig. 3), is directly pushed ahead cryptographic block 1 and simultaneously by 2 end of lock tongue It fills in lockhole 53.

Cryptographic block is replaced, is equal to replacement key, then cryptographic block is needed to take out, be inserted into new cryptographic block, in unlocking shape Under state (Fig. 3), cryptographic block 1 is clutched with hand, by the matching of Bore card 4 and cryptographic block, pushes ahead the cunning in cryptographic block 1 Block is recovered to the upper end of lock pin 11 in cryptographic block 1, at this moment can take out cryptographic block outward, as same method is inserted into newly close Code block, new cryptographic block have its matched new Bore card.

Claims (1)

1. Include lock body (5) and lock tongue (2) 1. a kind of padlock, had at left and right sides of the front of lock body (5) lockhole (53) and One end of dead bolt hole (52), latch bolt spring (21) and hook-type lock tongue (2) is placed in dead bolt hole (52), and the other end of lock tongue (2) can It is inserted into lockhole (53), there are lock tongue bayonet (20) at the nearly lock body (5) of lock tongue (2), when the both ends of lock tongue (2) are located at lock When hole (53) and interior dead bolt hole (52), 2 lock tongue bayonets (20) are located at lockhole (53) and dead bolt hole (52) is interior；

   It is characterized by: being provided with cryptographic block slot (50) in the middle part of lock body (5), a cryptographic block (1) is placed in cryptographic block slot (50), close The cross section and cryptographic block (1) of code block slot (50) are suitable；

   The cryptographic block (1) is Rectangular Plate Structure, the use of its match-drill card (4), and the inside of cryptographic block (1) has sliding block simultaneously Several pellets, which are distributed with, has lock pin (11) to, its front end, has card slot in cryptographic block (1), and Bore card is distributed on (4) There are several card holes, in by Bore card (4) insertion card slot, its card hole and whole pellets in sliding block are to matching When, sliding block can be pushed forward and then lock pin (11) is driven to move inward；

   The lock pin (11) that interior cryptographic block slot (50) side of lock body (5) corresponds to cryptographic block is laterally provided with lock pin mouth (502) and lock pin card Slot (501), the front of cryptographic block slot (50) are also provided with spline (51)；

   The spline (51) is connected to cryptographic block slot (50) by spline notch, and spline has at left and right sides of (51) It is connected to the spline mouth of lockhole (53) and dead bolt hole (52), two sides point of spline (51) or so are placed with a pair of of spline (3), middle part Traverse sets one piece of supporting plate (31), and spline (3) is arc plate structure, and back has convex block (33), and abdomen has boss (34), flower Supporting plate spring eye is provided in the middle part of keyway (51) and is placed with supporting plate spring (32), effect of the supporting plate (31) in supporting plate spring (32) Spline (3) are compressed by convex block (33) down, so that the tail portion of spline (3) is passed through spline notch and is located in cryptographic block slot (50)；

   Locked state, the both ends of lock tongue (2) are located in lockhole (53) and dead bolt hole (52), and cryptographic block (1) is entirely located in In the cryptographic block slot (50) of lock body (5), the front end of cryptographic block (1) is connected to the end of spline (3), stretches the front end of spline (3) Spline mouth is inserted into the lock tongue bayonet (20) of lock tongue (2) out, supporting plate spring (32) compresses, and the upper end of lock pin (11) enters lock body (5) lock pin mouth (502)

   Unlocking condition makes the lock pin (11) of cryptographic block (1) all take in cryptographic block (1) by the Bore card (4) of password match Interior, supporting plate (31) is pushed spline (3) by convex block (33) under the action of supporting plate spring (32), wears the tail portion of spline (3) It crosses spline notch to be located in cryptographic block slot (50), in the front income spline mouth of spline (3), lock tongue (2) is in latch bolt spring (21) Under the action of rise its other end made to leave the lockholes (53) of lock body (5).