CN109826499B

CN109826499B - Coded lock

Info

Publication number: CN109826499B
Application number: CN201910119567.3A
Authority: CN
Inventors: 赖秀兴; 郭镜辉
Original assignee: Yifeng Manufacturing Co Ltd
Current assignee: Yifeng Manufacturing Co Ltd
Priority date: 2019-02-18
Filing date: 2019-02-18
Publication date: 2023-11-03
Anticipated expiration: 2039-02-18
Also published as: CN109826499A

Abstract

The invention relates to the technical field of locks, in particular to a coded lock, which comprises a shell, wherein a coded lock assembly and a movable sheet are arranged in the shell, the coded lock assembly limits the movement of the movable sheet in a locking state, the movable sheet is in an annular arrangement, the coded lock assembly comprises a plurality of coded wheel groups, the coded wheel groups are distributed around the annular movable sheet, and when the coded lock is unlocked, the coded of the coded wheel groups is correct, and the coded lock assembly releases the limitation on the movement of the movable sheet.

Description

Coded lock

Technical Field

The invention relates to the technical field of locks, in particular to a coded lock.

Background

Along with economic development, people's frequency of going out is higher and higher, and people's trip all can carry the suitcase with portable article, when using the suitcase, the comparatively common trick lock at present adopts the trick lock to manage the suitcase, but current trick lock is sharp distribution, then makes the appearance of trick lock receive the restriction that the trick wheelset straight line distributes, and the trick lock appearance is comparatively single, and the volume of whole trick lock is great, and the structure is complicated.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a coded lock which occupies a small space.

The aim of the invention is achieved by the following technical scheme:

the utility model provides a trick lock, including the casing, install trick lock subassembly and movable piece in the casing, when locking the state, the motion of movable piece is restricted to the trick lock subassembly, and the movable piece is annular setting, and the trick lock subassembly includes a plurality of trick wheelsets, and a plurality of trick wheelsets are around annular movable piece distribution, and during the unblock, the password of trick wheelset is correct, and the trick lock subassembly is removed the restriction to the motion of movable piece.

The movable piece rotates to drive the stop block to move when the input password is correct, so that the stop block releases the restriction on the button, and the button is moved towards the unlocking direction by manually pressing the button, so that unlocking of the coded lock is realized.

The movable plate is provided with a lug, the password wheel group comprises a password wheel and a password adjusting wheel which is clamped with the password wheel, the password adjusting wheel rotates along with the password wheel, the password adjusting wheel is provided with a groove, and when an input password is correct, the lug of the movable plate is inserted into the groove, so that the movable plate can rotate.

The movable piece is further provided with a clamping groove, a first clamping block extends towards the inside of the clamping groove at the end portion of the stop block, and when the movable piece rotates, the stop block can be driven to move due to the fact that the first clamping block is embedded into the clamping groove.

The shell comprises a face shell, a column body extends upwards from the middle of the face shell, the movable piece is sleeved on the periphery of the column body, a second clamping block is further arranged on the side edge of the movable piece, the shell further comprises a first elastic piece, one end of the first elastic piece is sleeved on the periphery of the second clamping block, and the other end of the first elastic piece abuts against the face shell.

The inner wall of the face shell is provided with a sliding block in a protruding mode, a sliding groove is formed in the bottom of the block in a recessed mode, and the sliding block is inserted into the sliding groove, so that the block can slide relative to the sliding block; the side wall of the sliding block is convexly extended with a positioning block, a positioning groove is concavely formed on one side wall of the sliding groove, and the positioning block is convexly extended into the positioning groove and used for limiting the sliding of the stop block.

The novel coded lock comprises a shell, and is characterized by further comprising a lock catch, wherein the button comprises a main body part and a pressing part, one end of the pressing part is connected with the main body part, the other end of the pressing part protrudes out of the shell, a lock block extends from the free end of the main body part towards the direction of the pressing part, a lock groove is formed in the outer surface of the face shell towards the inner surface in a concave mode, the lock catch is located in the lock groove, the lock block protrudes into the lock groove and is inserted into the lock catch, locking of the coded lock is achieved, and when the pressing part is pressed, the lock block is pushed away from the lock groove, and the lock block releases the restriction on the lock catch, so that unlocking of the coded lock is achieved.

The lock rope is arranged in the shell, one end of the lock rope is a fixed end, the other end of the lock rope is a movable end, limiting grooves are formed in the movable end and the fixed end, the button comprises a main body part and a pressing part, one end of the pressing part is connected with the main body part, the other end of the pressing part protrudes out of the shell, a first slot and a second slot communicated with the first slot are formed in the main body part, the inner diameter R2 of the second slot is larger than the inner diameter R1 of the first slot, the outer diameter of the end of the movable end is R3, and R1< R3< R2, when the pressing part is pressed, the movable end of the lock rope moves from the first slot to the second slot, so that unlocking of the lock rope is realized.

The free end of the main body part is provided with a third clamping block, the device further comprises a second elastic piece, one end of the second elastic piece is sleeved on the periphery of the third clamping block, and the other end of the second elastic piece abuts against the face shell.

The face shell is provided with a first accommodating groove for accommodating the face shell, a side wall of the first accommodating groove protrudes towards the side wall of the corresponding side of the face shell, the fourth clamping block divides the first accommodating groove into two parts, and when the fixed end is inserted into the first accommodating groove from top to bottom, the fourth clamping block protrudes into the limiting groove.

The lock comprises a movable piece, a lock cylinder, a clutch block, a shifting block, a key lock assembly, a fifth clamping block and a shifting block, wherein the key lock assembly is arranged in an annular cavity of the movable piece, the top of the movable piece protrudes upwards to form a fifth clamping block, the key lock assembly comprises the lock cylinder and the clutch block, the clutch block is connected with the lock cylinder, the shifting block is used for being matched with the fifth clamping block, when the lock cylinder is rotated, the lock cylinder is rotated to drive the clutch block connected with the lock cylinder to rotate, and the shifting block on the clutch block drives the fifth clamping block to rotate, so that the movable piece is driven to rotate.

The invention has the beneficial effects that: according to the coded lock, the movable piece is arranged in the shape of the ring, the coded wheel sets are distributed annularly around the movable piece, compared with the traditional linear movable piece, the annular movable piece is arranged in the embodiment, the occupied space is small, the size of the coded lock can be smaller, the structure is simple, the appearance of the coded lock is not limited by the linear distribution of the coded wheel sets like the prior art, and the appearance of the coded lock can be set into coded locks in various shapes.

Drawings

The invention will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the invention, and other drawings can be obtained by one of ordinary skill in the art without inventive effort from the following drawings.

Fig. 1 is a top view of the combination lock of the present invention.

Fig. 2 is an exploded view of a bottom view of the combination lock of the present invention.

Fig. 3 is a schematic structural view of a face casing of the combination lock of the present invention.

Fig. 4 is a schematic structural view of an active piece of the coded lock of the present invention.

Fig. 5 is a schematic structural view of a block of the combination lock of the present invention.

Fig. 6 is a schematic structural view of a button of the combination lock of the present invention.

Fig. 7 is a schematic diagram of the structure of a lock rope of the coded lock of the present invention.

Fig. 8 is a schematic structural view of a face housing in another embodiment of the combination lock of the present invention.

Fig. 9 is a schematic diagram of a connection structure between a face shell and a button in another embodiment of the combination lock of the present invention.

Fig. 10 is a schematic structural view of a button in another embodiment of the combination lock of the present invention.

Fig. 1 to 10 include:

the lock device comprises a shell 1, a face shell 10, a bottom shell 11, an accommodating space 12, a column 13, a sliding block 14, a first accommodating groove 15, a fourth clamping block 150, a second accommodating groove 16, a third accommodating groove 17, a positioning column 18, a positioning block 19, a coded lock assembly 2, a coded wheel 20, a coded wheel 21, a coded switch 22, a coded hole 23, a groove 24, a first elastic piece 30, a second elastic piece 31, a third elastic piece 33, a key lock assembly 4, a lock cylinder 40, a clutch block 41, a shifting block 42, a lock control assembly 5, a movable piece 50, an extending part 500, a protruding part 501, a second clamping block 502, a protruding part 503, a clamping groove 504, a fifth clamping block 505, a stop block 51, a main body 510, a first clamping block 511, a first limiting block 512, a sliding groove 513, a button 6, a pressing part 60, a main body 61, a first slot 62, a second slot 63, a third clamping block 64, a second limiting block 65, a sixth clamping block 66, a locking block 67, a locking rope 7, a fixed end 70, a movable end 71, a limiting groove 72, a locking groove 8, a notch 80.

Detailed Description

The invention will be further described with reference to the following examples.

In a specific embodiment of the coded lock of the present invention, the coded lock is suitable for a padlock or other coded lock, as shown in fig. 1, and comprises a shell 1, a coded lock assembly 2, a key lock assembly 4, a lock control assembly 5 and a button 6, wherein the shell 1 is composed of a face shell 10 and a bottom shell 11, the face shell 10 and the bottom shell 11 are connected together, a containing space 12 (as shown in fig. 2) is formed between the face shell 10 and the bottom shell 11, and the coded lock assembly 2, the key lock assembly 4, the lock control assembly 5 and the button 6 are all located in the containing space 12.

As shown in fig. 3, a column 13 extends upward from the middle of the inner wall of the face shell 10, the main body 13 is hollow, the column 13 communicates the inside and the outside of the face shell 10, a sliding block 14, a first accommodating groove 15, a second accommodating groove 16, a third accommodating groove 17 and a plurality of positioning columns 18 are further arranged on the inner wall of the face shell 10, and the positioning columns 18 are distributed annularly around the column 13. The slide block 14 is formed by protruding upwards from the inner wall of the face shell 10, and the side wall of the slide block 14 is provided with a positioning block 19 protruding outwards from the side wall. The first accommodating groove 15 and the second accommodating groove 16 are parallel to each other and are adjacently arranged, the opening of the first accommodating groove 15 and the opening of the second accommodating groove 16 penetrate through the side wall of the face shell 10, the two side walls of the first accommodating groove 15 are provided with fourth clamping blocks 150 in a protruding mode towards and corresponding to the side walls, the positions of the two fourth clamping blocks 150 correspond to each other, the first accommodating groove 15 is divided into two parts by the two fourth clamping blocks 150, the bottoms of the two fourth clamping blocks 150 are connected with each other to form a U-shaped block, and the U-shaped block is installed in the first accommodating groove 15. The third receiving groove 17 passes through the second receiving groove 16 to divide the second receiving groove 16 into two, and an opening of the third receiving groove 17 penetrates through a sidewall of the face case 10.

As shown in fig. 2, the combination lock assembly 2 includes a plurality of combination wheel sets, each combination wheel set includes a combination wheel 20, a code adjustment wheel 21, and a code adjustment switch 22, the combination wheel 20, the code adjustment wheel 21, and the code adjustment switch 22 are sequentially mounted on the positioning column 18, the code adjustment wheel 21 is engaged with the combination wheel 20, the code adjustment wheel 21 rotates along with the combination wheel 20, the free end of the code adjustment wheel 21 protrudes into a code adjustment hole 23 of the code adjustment switch 22, a groove 24 is provided on the code adjustment wheel 21, and when the combination wheel 20 is rotated, the combination wheel 20 rotates to drive the code adjustment wheel 21 to rotate, so that the groove 24 rotates.

As shown in fig. 2, 4 and 5, the lock control assembly 5 includes a movable plate 50 and a stop block 51, when in a locked state, the lock control assembly limits the movement of the movable plate 50, the movable plate 50 is hollow and annular, the movable plate 50 is sleeved on the periphery of the cylinder 13, the central axis of the movable plate 50 coincides with the central axis of the cylinder 13, a plurality of code adjustment wheels 21 are annularly distributed on the periphery of the movable plate 50, the movable plate 50 includes an extension part 500, a protruding part 501 and a second clamping block 502, the extension part 500 is provided with three, the three extension parts 500 are formed by protruding outwards from the outer side wall of the movable plate 50, the three extension parts 500 extend towards three different directions respectively, a bump 503 is arranged on the same side of each extension part 500, the protruding directions of the plurality of bumps 503 are the same, the bumps 503 are respectively matched with the grooves 24 on the corresponding code adjustment wheels 21, when the codes of the code adjustment wheels 20 are correctly input, each bump 503 can be inserted into the groove 24 on the code wheel 21 corresponding to the corresponding side, the second clamping block 502 and the protruding part 501 are formed by protruding outwards from the side wall of the movable piece 50, the protruding part 501 is provided with a clamping groove 504, the clamping groove 504 is formed by recessing upwards from the bottom of the protruding part 501, the protruding part 501 is connected with the side edge of one extending part 500, the second clamping block 502 and the three extending parts 500 are respectively arranged at four corners of the movable piece 50, one end of the first elastic piece 30 is sleeved on the periphery of the second clamping block 502, the other end of the first elastic piece is propped against the surface shell 10, when the code is incorrect or not unlocked, the bump 503 is staggered with the groove 24, the second clamping block 502 elastically props against the first elastic piece 30, so that the first elastic piece 30 is in a compressed state, when the code is correct, the bump 503 is inserted into the groove 24, so that the movable piece 50 rotates, the movable piece 50 rotates to drive the second clamping block 502 to move, the first elastic member 30 is elastically restored at this time. A fifth block 505 protrudes upward from the top of the movable plate 50. The movable plate 50 is arranged to be hollow annular, the code adjusting wheels 21 are distributed annularly around the movable plate 50, compared with the traditional linear movable plate 50, the annular movable plate 50 is arranged in the embodiment, the occupied space is small, the volume of the coded lock can be smaller, the structure is simple, the appearance of the coded lock can be not limited by the linear distribution of the code wheels 20 or the movable plate 50, and the coded lock can be arranged to be in various shapes.

As shown in fig. 2 and 3, the key lock assembly 4 is installed in the hollow interior of the cylinder 13, the central axis of the lock core 40 of the key lock assembly 4 coincides with the central axis of the movable plate 50 and the central axis of the cylinder 13, and the key lock assembly 4 comprises the lock core 40 and the clutch block 41, the clutch block 41 is connected with the lock core 40, the clutch block 41 is connected with the shifting block 42, when the key is inserted into the lock core 40 for rotating, the lock core 40 rotates to drive the clutch block 41 connected with the lock core to rotate, and then the shifting block 42 on the clutch block 41 pushes the fifth clamping block 505 to rotate, so that the movable plate 50 is driven to rotate. Install key lock subassembly 4 in the annular cavity of movable piece 50, make full use of the hollow inside of movable piece 50, need not to set up other positions and be used for installing key lock subassembly 4, such structure setting makes holistic trick lock structure compacter, and the volume is littleer, accords with the development of present miniaturized trick lock more.

As shown in fig. 2 and 3, the stopper 51 includes a main body 510, a first clamping block 511 extends upward from the top of the end of one end of the main body 510, a first limiting block 512 is disposed at the other end of the main body 510, the first clamping block 511 is inserted into the clamping groove 504, a sliding groove 513 is disposed at the bottom of the main body 510, the sliding groove 513 is formed by recessing from the bottom, the sliding block 14 of the face shell 10 is matched with the sliding groove 513, the sliding block 14 is inserted into the sliding groove 513, the sliding groove 513 of the stopper 51 can slide on the sliding block 14, the stopper 51 is driven to slide relative to the sliding block 14, a positioning groove is formed in a recessed side wall of the sliding groove 513, the positioning block 19 can protrude into the positioning groove, and the stopper 51 can slide on the sliding block 14 at will only when an external force pushes the stopper 51 to move, and the external force drives the positioning groove to disengage from the positioning block 19, so that the stopper 51 can slide relative to the sliding block 14.

As shown in fig. 3 and 6, the button 6 is placed in the third accommodating groove 17, the button 6 includes a pressing portion 60 and a main body portion 61, one end of the pressing portion 60 is connected with the main body portion 61, the other end of the pressing portion 60 protrudes out of the face shell 10, the main body portion 61 is located in the third accommodating groove 17, a first slot 62 and a second slot 63 are arranged on the main body portion 61, the first slot 62 is communicated with the second slot 63, the inner diameter of the second slot 63 is R2, the inner diameters of the first slot 62 are R1, R2> R1, a third clamping block 64 is arranged on the free end of the main body portion 61, one end of a second elastic piece 31 (shown in fig. 2) is sleeved on the periphery of the third clamping block 64, the other end of the second elastic piece 31 abuts against the face shell 10, when the button 6 is pressed, the second elastic piece 31 is elastically compressed, the button 6 is released, and the second elastic piece 31 is elastically restored; the pressing portion 60 is provided with a second limiting block 65 on the inner side, the position of the second limiting block 65 corresponds to that of the second limiting block 65, when the pressing portion is not unlocked, the first limiting block 512 abuts against the second limiting block 65, so that the button 6 cannot be pressed towards the unlocking direction, movement of the button 6 is limited, when the movable piece 50 rotates to drive the stop block 51 to move, the first limiting block 512 located on the stop block 51 is staggered with the second limiting block 65 located on the button 6, and at the moment, the pressing portion 60 can be pressed to move towards the unlocking direction.

As shown in fig. 2, 6 and 7, the coded lock further comprises a locking rope 7, the locking rope 7 is installed in the shell 1, one end of the locking rope 7 is a fixed end 70, the other end is a movable end 71, the movable end 71 and the fixed end 70 are respectively provided with a limiting groove 72, the fixed end 70 is positioned in the first accommodating groove 15, the fixed end 70 is fixed in the shell 1, when the fixed end 70 is installed in the first accommodating groove 15 from top to bottom, the limiting groove 72 of the fixed end 70 is installed between the U-shaped blocks, thereby fixing the fixed end 70 in the shell 1, the movable end 71 is positioned in the second accommodating groove 16 (shown in fig. 3), the end part of the movable end 71 is connected with an elastic piece (not shown) which has a certain elastic pressure on the movable end, the outer diameter of the end part of the movable end 71 is R3, and R1< R3< R2, when the limit groove 72 of the movable end 71 is located in the first slot 62, the outer diameter of the end of the movable end 71 is larger than the inner diameter of the first slot 62, so that the elastic member cannot push the movable end 71 out of the first slot 62, and in this case, in the locked state, when the movable piece 50 rotates to drive the first limit block 512 in the stop block 51 to be staggered with the second limit block 65 in the button 6, the button 6 is pressed at this time, and the button 6 moves towards the unlocking direction, so that the slot matched with the limit groove 72 of the movable end 71 slides into the second slot 63 from the first slot 62, and because the outer diameter of the end of the movable end 71 is smaller than the inner diameter of the second slot 63, the elastic member breaks away the movable end 71 from the second slot 63 by using the elastic force, thereby unlocking the locking rope 7.

As shown in fig. 2 and 3, the bottom case 11 is provided with a plurality of positioning holes (not shown) which are matched with the positioning posts 18, and the positioning posts 18 are inserted into the positioning holes to fix the face case 10 and the bottom case 11 together.

In another embodiment, as shown in fig. 8 and 10, other structures are consistent with the above structures, and the inconsistent structure is that the coded lock further comprises a lock catch (not shown), wherein the lock catch is formed by recessing the outer surface of the face shell 10 towards the inner surface, the lock catch is positioned in the lock catch 8, and a notch 80 is formed on one side wall of the lock catch 8. The button 6 is placed in the third accommodating groove 17, the button 6 comprises a pressing part 60 and a main body part 61, one end of the pressing part 60 is connected with the main body part 61, the other end of the pressing part 60 protrudes out of the surface shell 10, the main body part 61 is positioned in the third accommodating groove 17, a sixth clamping block 66 and a third elastic piece 33 are arranged on one end of the main body part 61 connected with the pressing part 60, one end of the third elastic piece 33 is sleeved on the periphery of the sixth clamping block 66, the other end is elastically abutted against the other side wall of the locking groove 8, when the button 6 is pressed, the third elastic piece 33 is elastically contracted, after the pressing of the button 6 is released, the third elastic piece 33 is elastically restored to drive the button 6 to return to the original position, the free end of the main body 61 extends towards the direction of the pressing part 60 to form a locking block 67, the locking block 67 protrudes into the locking groove 8 from the notch 80 and is inserted into the lock catch, the first limiting block 512 abuts against the second limiting block 65, so that the button 6 cannot be pressed towards the unlocking direction, the movement of the button 6 is limited, the coded lock is in a locking state, when the movable piece 50 rotates to drive the stop block 51 to move, the first limiting block 512 located on the stop block 51 is staggered with the second limiting block 65 located on the button 6, the pressing part 60 can be pressed to move towards the unlocking direction, the button 6 moves to push the locking block 67 away from the locking groove 8, the locking block 67 is limited by the lock catch, and the coded lock is unlocked.

Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. The utility model provides a trick lock, includes the casing, installs trick lock subassembly and movable plate in the casing, and during the state of locking, the motion of movable plate, its characterized in that are restricted to the trick lock subassembly: the movable sheet is in annular arrangement, the coded lock assembly comprises a plurality of coded wheel sets, the coded wheel sets are distributed around the annular movable sheet, and when the coded lock is unlocked, the coded wheel sets are correct in code, and the coded lock assembly releases the limitation on the movement of the movable sheet;

the lock further comprises a stop block and a button for manual pressing, one end of the stop block is movably connected with the movable plate, the other end of the stop block can stop the button from moving towards the unlocking direction, when an input password is correct, the movable plate can drive the stop block to move so that the stop block releases the restriction on the button, and the button can move towards the unlocking direction by manual pressing of the button, so that unlocking of the coded lock is realized;

the movable plate is provided with a lug, the password wheel group comprises a password wheel and a password adjusting wheel which is clamped with the password wheel, the password adjusting wheel rotates along with the password wheel, the password adjusting wheel is provided with a groove, and when an input password is correct, the lug of the movable plate is inserted into the groove, so that the movable plate can rotate;

the movable piece is also provided with a clamping groove, a first clamping block extends towards the inside of the clamping groove at the end part of the stop block, and when the movable piece rotates, the stop block can be driven to move due to the fact that the first clamping block is embedded into the clamping groove;

the shell comprises a surface shell, a column body extends upwards from the middle of the surface shell, the movable piece is sleeved on the periphery of the column body, a second clamping block is further arranged on the side edge of the movable piece, the shell further comprises a first elastic piece, one end of the first elastic piece is sleeved on the periphery of the second clamping block, and the other end of the first elastic piece abuts against the surface shell.

2. A combination lock according to claim 1, wherein: the inner wall of the face shell protrudes upwards to form a sliding block, a sliding groove is formed in the bottom of the block in a recessed mode, and the sliding block is inserted into the sliding groove, so that the block can slide relative to the sliding block; the side wall of the sliding block is convexly extended with a positioning block, a positioning groove is concavely formed on one side wall of the sliding groove, and the positioning block is convexly extended into the positioning groove and used for limiting the sliding of the stop block.

3. A combination lock according to claim 1, wherein: still include the hasp, the button includes main part and presses the portion, presses the one end connection main part of portion, presses the portion other end protruding outside the casing, and the free end of main part extends towards the direction of pressing the portion has the locking piece, and the outward facing of face-piece is towards the concave locked groove that is formed with of internal surface, and the hasp is located the locked groove, and the locking piece is protruding to stretch into the locked groove and insert in the hasp, realizes the upper lock of trick lock, when pressing press the portion, pushes away the locking piece from the locked groove, and the locking piece is released the restriction to the hasp to realize the unblock of trick lock.

4. A combination lock according to claim 1, wherein: still including locking the rope, the one end that locks the rope is the stiff end in the casing, and the other end is the expansion end, all is equipped with the spacing groove on expansion end and the stiff end, and the button includes main part and presses the portion, presses the one end connection main part of portion, presses the protruding outside stretching out the casing of portion other end, is equipped with first slot, the second slot with first slot intercommunication in the main part, the internal diameter R2 of second slot is greater than the internal diameter R1 of first slot, the external diameter of the tip of expansion end is R3, and R1< R3< R2, when pressing press the portion for the expansion end of lock the rope removes in the second slot from first slot, thereby realizes the unblock of lock the rope.

5. A combination lock according to claim 4, wherein: the free end of the main body part is provided with a third clamping block and also comprises a second elastic piece, one end of the second elastic piece is sleeved on the periphery of the third clamping block, and the other end of the second elastic piece is propped against the face shell; the face shell corresponds the stiff end department and is equipped with the first holding tank that holds it, the lateral wall of first holding tank has protruding fourth fixture block towards the lateral wall of its corresponding side, and the fourth fixture block divides into two with first holding tank, and the stiff end is from top to bottom when inserting in the first holding tank, and the protruding spacing inslot that stretches into of fourth fixture block.

6. A combination lock according to claim 1, wherein: the lock comprises a movable piece, and is characterized by further comprising a key lock assembly, wherein the key lock assembly is arranged in an annular cavity of the movable piece, a fifth clamping block is upwards protruded from the top of the movable piece, the key lock assembly comprises a lock cylinder and a clutch block, the clutch block is connected with the lock cylinder, the clutch block is connected with a shifting block, the shifting block is used for being matched with the fifth clamping block, when the lock cylinder is rotated, the lock cylinder is rotated to drive the clutch block connected with the lock cylinder to rotate, and the shifting block on the clutch block drives the fifth clamping block to rotate, so that the movable piece is driven to rotate.