CN211949974U

CN211949974U - Coded lock with code changing function

Info

Publication number: CN211949974U
Application number: CN201921896074.2U
Authority: CN
Inventors: 韩文杰; 王壤
Original assignee: Ningbo Wangtong Locks Co Ltd
Current assignee: Ningbo Wangtong Locks Co Ltd
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-11-17
Anticipated expiration: 2029-11-06

Abstract

The utility model discloses a coded lock with code changing function, which comprises a lock seat and a housing, wherein a core rod is arranged in the lock seat, the core rod comprises a connecting section, a front end and an end, a character wheel core is sleeved on the connecting section, an end spring is arranged between the front end and the character wheel core, a shaft block is sleeved on the tail end, a bearing surface is arranged on one side of the shaft block to abut against the side surface of the character wheel core, an ejector block is arranged on the other side of the shaft block, and a bearing inclined plane is arranged on the side surface of the ejector block; the side edge of the shaft block is provided with a changing block, a helicoid is arranged on the changing block, the top of the helicoid is provided with a supporting end face, and the helicoid is attached to a pressure-bearing inclined plane; the character wheel core is correspondingly sleeved with a character wheel; the code conversion block is rotated, the spiral surface is matched with the pressure bearing inclined plane to work so as to push the shaft block to move forwards, the character wheel core is caused to move forwards under the action of the end spring, and then the character wheel is rotated to finish the code conversion work. The utility model provides a trick lock with escape function has adopted simple and reliable structure, can be laborsaving, quick, in the same direction as smooth, modify the password simply.

Description

Coded lock with code changing function

Technical Field

The utility model relates to a trick lock with escape function.

Background

The coded lock is one kind of lock with serial numbers or symbols for unlocking, and may be mechanical coded lock, digital coded lock, etc.

The combination of a combination lock is usually only permutation and not a true combination. Part of the coded lock only uses a turntable to rotate a plurality of discs or cams in the lock; some combination locks also rotate a set of several dial rings with numbers engraved on them to directly drive the internal mechanism of the lock.

In security, the password is modified after the consumer purchases the password. The existing coded lock is not simple and reliable enough to modify the code. And because the inside part of trick lock is more, some trick locks are when revising the password, and the carousel rotates and can be blocked to can not revise the password.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to not enough among the prior art, provide a trick lock with escape function, adopted simple and reliable structure, can be laborsaving, quick, in the same direction as smooth, modify the password simply.

In order to solve the technical problem, the utility model discloses a following technical scheme can solve: a coded lock with a code changing function comprises a lock seat and a housing, wherein a core rod is arranged in the lock seat and comprises a connecting section, a front end positioned in the front of the connecting section and a tail end positioned at the tail of the connecting section, a plurality of character wheel cores are sequentially sleeved on the connecting section, an end spring is arranged between the front end and a first character wheel core, a shaft block is sleeved on the tail end, the shaft block is limited by the lock seat to rotate and can only move horizontally, a bearing surface is arranged on one side of the shaft block to abut against the side surface of the last character wheel core, an ejector block is arranged on the other side of the shaft block, the end spring is matched with the shaft block to tightly press all the character wheel cores into a string, and a bearing inclined surface is arranged on the side edge of the ejector block; the side edge of the shaft block is provided with a changing block, a spiral surface is arranged on the changing block, the top of the spiral surface is provided with a supporting end surface, and the spiral surface is attached to the pressure bearing inclined surface; each character wheel core is correspondingly sleeved with a character wheel, and the character wheel is limited by the lock seat and the housing to move but can rotate; and rotating the code changing block, utilizing the spiral surface to work in cooperation with the pressure bearing inclined plane to push the shaft block to move forwards, leading the character wheel core to overcome the action of the end spring and move forwards to be separated from the character wheel motion state, and then rotating the character wheel, thereby finishing the code changing work.

Preferably, two sides of the tail end of the shaft block are respectively provided with a top block, and a gap between the two top blocks is used for installing the supporting end face.

Preferably, the character wheel core is provided with a supporting section, the character wheel sleeve is arranged on the supporting section, a plurality of limiting blocks are arranged on the supporting section, the side wall of the sleeve hole of the character wheel is provided with a limiting groove, the limiting blocks are inserted into the limiting groove, so that the character wheel can drive the character wheel core to rotate together, and the limiting blocks can not rotate together when being separated.

Preferably, a lock cylinder is arranged in the lock seat, a lock catch is arranged on the side edge of the lock cylinder, and the lock catch is jacked by the front end of the core rod to clamp the lock cylinder so that the lock cylinder cannot rotate.

Preferably, the core rod is provided with locking blocks, the number of the locking blocks is matched with that of the core rod, the core rod is provided with a middle hole for the core rod to pass through, the middle hole is provided with a locking groove matched with the locking block to work, the core rod is rotated to align the locking groove with the locking block, so that the locking block can be inserted into the middle hole, and the core rod can move backwards and does not abut against the lock tongue to complete unlocking.

Preferably, the housing top surface is provided with the escape slot, the escape block is provided with the salient the spanner strip of housing, spanner strip top is provided with the slot, the spanner strip is convenient for rotate the escape block, the slot is convenient for drive the spanner strip.

The utility model provides a trick lock with escape function has adopted simple and reliable structure, can be laborsaving, quick, in the same direction as smooth, modify the password simply.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be discussed below, it is obvious that the technical solutions described in conjunction with the drawings are only some embodiments of the present invention, and for those skilled in the art, other embodiments and drawings can be obtained according to the embodiments shown in the drawings without creative efforts.

Fig. 1 is a schematic view of the external structure of the present invention.

Fig. 2 is a schematic view of the components installed in the lock seat of the present invention.

Fig. 3 is a schematic cross-sectional view of the present invention.

Fig. 4 is a schematic structural diagram of the escape block of the present invention.

Fig. 5 is a schematic structural diagram of the shaft block of the present invention.

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

Fig. 7 is a schematic structural view of the print wheel core of the present invention.

Fig. 8 is a schematic structural view of the print wheel of the present invention.

Fig. 9 is a plan view of the present invention with three character wheels detached.

In the figure, 1 is a lock base, 101 is a lock core, 102 is a bolt, 103 is a lock catch, 11 is an escape slot, and 12 is a housing; 2, a code changing block, 21, a helicoid, 22, a supporting end face, 23, a rotating rod and 24, wherein the helicoid is a spiral surface; 3 is a core rod, 31 is a connecting section, 32 is a locking block, 33 is a tail end, 34 is a front end, and 36 is an end spring; 4 is a character wheel core, 41 is a supporting section, 42 is a limiting block, 43 is a middle hole, and 44 is a locking groove; 5 is a character wheel, 51 is a trepan boring, 52 is a limit groove, and 53 is a numeral; 6 is a shaft block, 61 is a top block, 62 is a pressure bearing surface, and 63 is a pressure bearing inclined surface.

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 some embodiments of the present invention, and not all embodiments. Based on the embodiments described in the present disclosure, all other embodiments obtained by a person skilled in the art without creative efforts are within the scope of the present disclosure.

As shown in fig. 1 to 9, a coded lock with a code changing function includes a lock base 1 and a housing 12, a core rod 3 is disposed in the lock base 1, the core rod 3 includes a connection section 31, a front end 34 located in a front portion of the connection section 31, and a tail end 33 located in a tail portion of the connection section 31, a plurality of character wheel cores 4 are sequentially sleeved on the connection section 31, an end spring 36 is disposed between the front end 34 and a first character wheel core 4, the tail end 33 is sleeved with a shaft block 6, the shaft block 6 is limited by the lock base 1 to rotate and only translate, a pressure bearing surface 62 is disposed on one side of the shaft block 6 to abut against a side surface of the last character wheel core 4, an ejector block 63 is disposed on the other side, the end spring 36 cooperates with the shaft block 6 to compress all the character wheel cores 4 into a string, and a pressure bearing inclined surface 63 is disposed on a side of the ejector block 63; a changing block 2 is arranged on the side edge of the shaft block 6, a spiral surface 21 is arranged on the changing block 2, a supporting end surface 22 is arranged at the top of the spiral surface 21, and the spiral surface 21 is attached to the pressure bearing inclined surface 63; each character wheel core 4 is correspondingly sleeved with a character wheel 5, and the character wheel 5 is limited by the lock seat 1 and the housing 12 to move but can rotate; the code changing block 2 is rotated, the spiral surface 21 is matched with the pressure bearing inclined surface 63 to work, so that the shaft block 6 is pushed to move forwards and the character wheel 5 is separated from the motion state, the character wheel core 4 is enabled to move forwards under the action of the end spring 36, and then the character wheel 5 is rotated, so that the code changing work is completed.

Two sides of the tail end of the shaft block 6 are respectively provided with an ejector block 63, and a gap between the two ejector blocks 63 is used for installing the supporting end face 22.

The character wheel core 4 is provided with a supporting section 41, the character wheel 5 is sleeved on the supporting section 41, a plurality of limiting blocks 42 are arranged on the supporting section 41, limiting grooves 52 are formed in the side walls of sleeve holes 51 of the character wheel 5, the limiting blocks 42 are inserted into the limiting grooves 52, so that the character wheel 5 can drive the character wheel core 4 to rotate together, and the limiting blocks 42 can not rotate together when being separated.

A lock core 101 is arranged in the lock base 1, a lock catch 103 is arranged on the side edge of the lock core 101, and the lock catch 103 is pushed by the front end 34 of the core rod 3 to block the lock core 101 so as not to rotate. A bolt 102 is arranged below the lock cylinder 101, and after a correct key is inserted into the lock cylinder 101, the lock cylinder can be driven by the key to rotate, so that the bolt 102 is pushed to rotate, and unlocking is completed.

The core rod 3 is provided with locking blocks 32 the number of which is matched with that of the core rod 4, the core rod 4 is provided with a middle hole 43 for the core rod 3 to pass through, the middle hole 43 is provided with a locking groove 44 matched with the locking block 32 to work, the core rod 4 is rotated to align the locking groove 44 with the locking block 32, so that the locking block 32 can be inserted into the locking groove, and the core rod 3 can move backwards and does not abut against the lock tongue 102, so that unlocking is completed.

Cover 12 top surface is provided with escape slot 11, escape block 2 is provided with the salient spanner strip 23 of cover 12, spanner strip 23 top is provided with slot 24, spanner strip 23 is convenient for rotate escape block 2, slot 24 is convenient for drive spanner strip 23.

The locking and unlocking principle of the device is as follows: when the character wheel 5 moves to the correct code, the locking groove 44 of the character wheel core 4 and the locking block 32 on the core rod 3 are in the aligned state, that is, the core rod 3 can be moved, and at this time, the unlocking state is realized. When any password is in a disordered state (incorrect password), the locking groove 44 of the character wheel core 4 and the locking block 32 on the core rod 3 are in a staggered state, namely the core rod 3 cannot be moved, and the lock is in a locked state at the moment.

The escape principle of the device is as follows: the escape operation is performed when the lock is in the correct combination (i.e., the lock block 32 on the core rod 3 is in alignment with the lock slot 44 on each of the word cores 4). The code changing block 2 is rotated to be shifted to the position of the

code changing block

2, and 2 spiral lines are designed on the working end face of the code changing block, so that the shaft block 6 is driven to do linear motion when the code changing block 2 is shifted to the code changing position. When the dial is shifted to the code changing position, the dial is just at the highest point of the code changing spiral line, namely the supporting end surface 22 touches the pressure bearing inclined surface 63, and at the moment, the shaft block 6 moves to the limit position. The shaft block synchronously pushes the character wheel core to move, so that the limiting block 42 is separated from the limiting groove 52, and the character wheel 5 cannot drive the character wheel core 4 to rotate together. At this time, the character wheel 5 is rotated, and the function of changing the code is realized. After the code changing, the code changing block 2 is shifted back again, so that the shaft block 6 moves back, and at the moment, under the action of the end spring 36, the character wheel core 5 moves back, so that the limiting block 42 is inserted into the limiting groove 52, and the character wheel 5 can drive the character wheel core 4 to rotate together.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive. The scope of the invention is indicated by the appended claims, rather than the foregoing description, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A coded lock with a code changing function is characterized in that: the core rod type wheel core assembly comprises a lock seat (1) and a housing (12), wherein a core rod (3) is arranged in the lock seat (1), the core rod (3) comprises a connecting section (31), a front end (34) positioned at the front part of the connecting section (31) and a tail end (33) positioned at the tail part of the connecting section (31), a plurality of character wheel cores (4) are sequentially sleeved on the connecting section (31), an end spring (36) is arranged between the front end (34) and the first character wheel core (4), a shaft block (6) is sleeved on the tail end (33), the shaft block (6) is limited by the lock seat (1) to rotate and can only translate, one side of the shaft block (6) is provided with a bearing surface (62) to abut against the side surface of the last character wheel core (4), the other side of the shaft block is provided with a top block (63), the end spring (36) is matched with the shaft block (6) to compress all the character wheel cores (4), a pressure-bearing inclined plane is arranged on the side edge of the top block (63); the side edge of the shaft block (6) is provided with a code changing block (2), a spiral surface (21) is arranged on the code changing block (2), the top of the spiral surface (21) is provided with a supporting end surface (22), and the spiral surface (21) is attached to the pressure bearing inclined surface; each character wheel core (4) is correspondingly sleeved with a character wheel (5), and the character wheel (5) is limited by the lock seat (1) and the housing (12) to move but can rotate; the code changing block (2) is rotated, the spiral surface (21) is matched with the pressure bearing inclined surface to work so as to push the shaft block (6) to move forwards, the character wheel core (4) is caused to move forwards and is separated from the motion state of the character wheel (5) under the action of the end spring (36), and then the character wheel (5) is rotated, so that the code changing work is completed.

2. The combination lock of claim 1, wherein: two sides of the tail end of the shaft block (6) are respectively provided with an ejector block (63), and a gap between the two ejector blocks (63) is used for installing the supporting end face (22).

3. The combination lock of claim 2, wherein: word wheel core (4) are provided with support section (41), word wheel (5) cover is located support section (41) are last, be provided with a plurality of stopper (42) on support section (41), the lateral wall of trepanning (51) of word wheel (5) is provided with spacing groove (52), stopper (42) insert thereby spacing groove (52) make word wheel (5) can drive word wheel core (4) rotate together, make both unable rotation together when stopper (42) break away from.

4. The combination lock of claim 2, wherein: a lock cylinder (101) is arranged in the lock base (1), a lock catch (103) is arranged on the side edge of the lock cylinder (101), and the lock catch (103) is pushed forward by the front end (34) of the core rod (3) so as to clamp the lock cylinder (101) and enable the lock cylinder to be incapable of rotating.

5. The combination lock of claim 4, wherein: the lock core is characterized in that the core rod (3) is provided with locking blocks (32) the number of which is matched with that of the core rod (4), the core rod (4) is provided with a middle hole (43) for the core rod (3) to pass through, the middle hole (43) is provided with a locking groove (44) matched with the locking block (32) to work, the core rod (4) is rotated to align the locking groove (44) to the locking block (32) so that the locking block (32) can be inserted into the locking groove, and therefore the core rod (3) can move backwards and does not abut against the lock tongue (102) to complete unlocking.

6. The combination lock of claim 1, wherein: cover (12) top surface is provided with escape slot opening (11), escape block (2) are provided with the salient spanner strip (23) of cover (12), spanner strip (23) top is provided with slot (24), spanner strip (23) are convenient for rotate escape block (2), slot (24) are convenient for drive spanner strip (23).