CN110469210B

CN110469210B - Novel coded lock

Info

Publication number: CN110469210B
Application number: CN201910694289.4A
Authority: CN
Inventors: 赖秀兴; 郭镜辉
Original assignee: Yifeng Manufacturing Co Ltd
Current assignee: Yifeng Manufacturing Co Ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2024-03-15
Anticipated expiration: 2039-07-30
Also published as: CN110469210A

Abstract

The invention relates to the technical field of locks, in particular to a novel coded lock, which comprises a round lock body arranged on the opening and closing side of a box body, a fixed seat connected with the first surface of the lock body, a lock hook and a clutch block capable of limiting the rotation of the lock body, wherein a torsion spring capable of driving the lock body to rotate relative to the fixed seat is arranged in the middle of the lock body, the central axis of the lock body coincides with the central axis of the fixed seat, and the lock body comprises a locking position and an unlocking position; when the lock hook is buckled into the lock body from the unlocking position, the lock hook triggers the clutch block to enable the fixing base to release the restriction on the rotation of the lock body, the lock body can rotate under the drive of the torsion spring to automatically rotate to lock the lock hook, the lock hook enters the locking position from the unlocking position, the lock body automatically rotates to lock the lock hook, articles in the box are prevented from falling out, when the box is full of articles, people can close the box, the lock hook can automatically lock the box, the box is prevented from being pressed by one hand, the complex operation of rotating the lock body by one hand can be realized, and the box is convenient to lock.

Description

Novel coded lock

Technical Field

The invention relates to the technical field of locks, in particular to a novel 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 and take article with the portability, when using the suitcase, at present more common use the trick lock to manage, however people's trip is often more of thing that carries, and luggage in the box is more, leads to needing people to press the case and bag in one hand when locking or unblock, and the other hand locks or unblock, and the operation is complicated.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a novel coded lock which is simple to operate and can realize a one-hand lock box.

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

the utility model provides a novel coded lock, including install at the circular shape lock body of box opening and shutting side and with the first surface connection's of lock body fixing base, latch hook and can restrict the rotatory clutch block of lock body, the first surface fixing of fixing base is on the lower box, the second surface of fixing base with the middle part of lock body articulates, the mid-mounting of lock body has can drive the lock body is relative fixing base pivoted torsional spring, the central axis of lock body with the central axis coincidence of fixing base, the lock body includes locking position and unblock position, the first surface fixing of latch hook is on the upper box, the second surface of latch hook is equipped with hook portion protrusion and advances locking position and with the lock body block, the clutch block is installed on the lock body, when the lock body rotates and makes the clutch block with the fixing base block joint, the latch hook can get into the unblock position from locking position, when the latch hook detains from the lock position to the lock body, the latch hook central axis with the central axis coincidence of fixing base, the latch hook can make the clutch block can be rotated from the lock position to make the lock body to get into the unblock.

The fixing seat comprises a first protruding block, the first protruding block extends towards the direction of the lock body, the clutch block comprises a first clutch block and a second clutch block, the first clutch block and the second clutch block are hinged to the lock body through a torsion spring, the first clutch block is located on the side edge of the unlocking position, part of the structure of the first clutch block protrudes into the unlocking position, one end of the second clutch block can be abutted to the first clutch block, and the other end of the second clutch block can limit rotation of the first protruding block.

The lock comprises a lock body and is characterized by further comprising a connecting block hinged with the lock body, a locking piece capable of limiting rotation of the lock body, wherein the locking piece and the connecting block are both located on the second surface of the lock body, a second protruding block extends towards the direction of the lock body, a straight groove penetrating through the first surface and the second surface of the lock body is formed in the lock body, the straight groove corresponds to the position of the second protruding block, a clamping block clamped with the second protruding block is arranged on the connecting block, the clamping block can be inserted into the straight groove and extends towards the direction of the second protruding block, and when the locking piece drives the connecting block to rotate, the clamping block can be dislocated with the second protruding block, so that the fixing seat releases rotation limitation of the lock body.

The locking piece comprises a coded lock, the coded lock comprises a movable piece, a code adjusting wheel spring, a code adjusting wheel and a coded wheel, the code adjusting wheel spring, the code adjusting wheel and the coded wheel are arranged on the movable piece, a containing groove for containing the code adjusting wheel and a convex part protruding inwards from the side edge of the containing groove are arranged on the movable piece, a notch is formed in the code adjusting wheel and is clamped with the convex part, the connecting block comprises a first shifting block, the movable piece extends towards the direction of the connecting block to form a third convex block, when the code of the coded wheel is input correctly, the convex part can be inserted into the notch to enable the movable piece to move towards the unlocking direction, the movable piece moves to drive the third convex block to push the first shifting block, and then the connecting block rotates with the central axis of the connecting block as a hinge point, so that the clamping block is dislocated with the second convex block, and the fixing seat is free from the rotation restriction of the lock body.

The locking piece further comprises a key lock, the key lock is arranged on the side edge of the connecting block, the connecting block comprises a second shifting block, the key lock comprises a lock cylinder and a third shifting block connected with the lock cylinder, when a key is inserted into the lock cylinder and the lock cylinder is rotated, the lock cylinder rotates to drive the third shifting block to rotate, so that the third shifting block pushes the second shifting block, the connecting block rotates by taking the central axis of the connecting block as a hinge point, the clamping block is dislocated with the second protruding block, and the fixing seat releases the rotation restriction on the lock body.

The connecting block further comprises an elastic piece, one end of the elastic piece is elastically abutted against the first shifting block, the other end of the elastic piece is elastically abutted against the lock body, when the third protruding block pushes the first shifting block or the third shifting block pushes the second shifting block to enable the connecting block to rotate, the elastic piece is in a compression state, and when the third protruding block releases the abutting of the first shifting block or the third shifting block releases the abutting of the second shifting block, the elastic piece drives the connecting block to return to rotate by taking the central axis of the connecting block as a hinge point under the action of elastic force.

The unlocking position and the locking position are both located on the side edge of the lock body, the locking position comprises a slot convenient for the hook part of the lock hook to be inserted, the unlocking position comprises a notch which is located on the side edge of the slot and communicated with the slot, and the notch penetrates through the side wall of the lock body outwards.

The lock comprises a fixed seat and is characterized in that an arc-shaped plate is arranged on the fixed seat, the central axis of the arc-shaped plate axially coincides with the center of the lock body, a fixed block is arranged at the position of the lock body corresponding to the arc-shaped plate, a ball elastic piece which can be elastically abutted with the fixed block and a ball connected with the end part of the ball elastic piece are contained on the fixed block, the ball is located between the ball elastic piece and the arc-shaped plate, and the ball is in rolling connection with the arc-shaped plate.

Wherein, both ends of arc all are equipped with one and can hold the spacing recess of ball.

The invention has the beneficial effects that: according to the novel coded lock, the first surface of the fixed seat and the first surface of the lock hook are respectively positioned on the lower box body and the upper box body, the second surface of the fixed seat and the lock body are hinged together through the torsion spring, the lock hook is clamped on the locking position through the hook part, the clutch block can limit the rotation of the lock body, when the lock body rotates towards the unlocking direction, the clutch block is clamped with the fixed seat, the lock body is positioned at the position, the lock hook can enter the unlocking position from the locking position, and the lock hook can be unlocked; when the latch hook is buckled into the lock body from the unlocking position, the latch hook triggers the clutch block to enable the fixing base to release the restriction on the rotation of the lock body, the lock body can rotate under the drive of the torsion spring to automatically rotate to lock the latch hook, the latch hook enters into the locking position from the unlocking position, the latch hook can be locked, namely, after the box is closed, the latch hook is only required to be inserted inwards, the latch body automatically rotates to lock the latch hook, articles in the box are prevented from falling out, and when the box is full of articles, people can close the box, the latch hook can automatically lock the box, the complex operation of pressing the box by one hand and rotating the lock body by the other hand is avoided, the box can be locked by one hand, and the box is convenient to lock.

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 schematic structural diagram of the novel coded lock of the present invention.

Fig. 2 is another view of the novel combination lock of the present invention.

Fig. 3 is a schematic view of the structure of the novel combination lock of the present invention with the face casing removed.

Fig. 4 is a schematic view of another view structure of fig. 3.

Fig. 5 is a schematic structural diagram of a fixing base of the novel coded lock.

Fig. 1 to 5 include:

the lock body 1, the unlocking position 12, the notch 120, the locking position 13, the slot 130, the torsion spring 14, the straight slot 15, the fixing base 2, the first bump 20, the second bump 21, the arc 22, the fixing block 220, the ball 221, the ball elastic piece 222, the limit groove 23, the first clutch block 30, the hollow barrel 300, the first extension block 301, the second clutch block 31, the second extension block 310, the connecting block 4, the cylinder 40, the clamping block 41, the first shifting block 42, the second shifting block 43, the protrusion 44, the locking piece 5, the combination lock 50, the movable piece 500, the code wheel spring 501, the code wheel 502, the code wheel 503, the accommodating groove 504, the protrusion 505, the notch 506, the third bump 507, the key lock 51, the lock cylinder 510, the third shifting block 511, the lock hook 6, the hook 62, the face housing 7, and the soft rubber ring 70.

Detailed Description

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

1-4, the embodiment of the novel coded lock of the invention comprises a lock body 1, a face shell 7 coated outside the lock body 1, and a soft rubber ring 70 annularly surrounding the side wall of the face shell 7, wherein the soft rubber ring 70 is fixedly connected with the face shell 7, the lock body 1 is a round lock body 1, the lock body 1 comprises a first surface and a second surface (the first surface and the second surface in the embodiment are two surfaces oppositely arranged), the first surface can be arranged on the opening and closing side of the box body, the face shell 7 coats the second surface, the novel coded lock further comprises a fixing seat 2, a lock hook 6 and a clutch block which are connected with the first surface of the lock body 1, the lock body 1 comprises an unlocking position 12 and a locking position 13, the unlocking position 12 and the locking position 13 are both positioned on the side edge of the lock body 1, the locking position 13 comprises a slot 130, the slot 130 is communicated inwards, the unlocking position 12 comprises a notch 120, the notch 120 is positioned on the side edge of the slot 130 and is communicated with the side wall of the slot 130 and penetrates outwards through the side wall of the lock body 1, and the lock hook 130 can be separated from the locking position 1 outwards through the notch 120.

As shown in fig. 3 and 5, the fixing base 2 is installed on the lock body 1, the first surface of the fixing base 2 is fixed on the lower box body, the second surface of the fixing base 2 is hinged with the middle part of the lock body 1, the torsion spring 14 is installed in the middle of the lock body 1, the torsion spring 14 can drive the lock body 1 to rotate relative to the fixing base 2, the central axis of the lock body 1 coincides with the central axis of the fixing base 2, when the lock body 1 is twisted to rotate, the lock body 1 can rotate relative to the fixing base 2, and the torsion spring 14 can drive the lock body 1 to return to rotate. The second surface 24 of the fixing seat 2 is provided with a first bump 20, a second bump 21 and an arc plate 22, the first bump 20, the second bump 21 and the arc plate 22 extend towards the direction of the lock body 1, the first bump 20 is positioned at the side edge of the fixing seat 2, the second bump 21 is a bent right-angle connecting plate, the arc plate 22 is in an arc shape, the central axis of the arc plate 22 coincides with the central axis of the lock body 1 and the central axis of the fixing seat 2, and the outer side surfaces of two end parts of the arc plate 22 are provided with a limiting groove 23. The lock body 1 is provided with a fixed block 220 corresponding to the arc plate 22, the fixed block 220 is provided with a ball elastic piece 222 which can be elastically abutted with the fixed block 220 and a ball 221 which is connected with the end part of the ball elastic piece 222, the ball 221 is positioned between the ball elastic piece 222 and the arc plate 22, the ball 221 is in rolling connection with the arc plate 22, when the lock body 1 rotates, the ball 221 on the lock body 1 rolls relative to the arc plate 22, and the ball 221 is adopted to enable the lock body 1 to be in rolling connection with the fixed seat 2, so that the function of better hand feeling is achieved, and the rotation of the lock body 1 is smoother. The ball 221 can enter the limiting groove 23, and when the ball 221 is positioned in the limiting grooves 23 at the two ends of the arc-shaped plate 22, the lock body 1 can be prevented from rotating excessively, and the ball 221 and the limiting grooves 23 play a limiting role.

The first surface of latch hook 6 is fixed on last box, and latch hook 6 and fixing base 2 position are corresponding, the second surface of latch hook 6 is equipped with hook 62 protruding stretch into this slot 130 and with lock body 1 block, lock body 1 can rotate relative latch hook 6 and fixing base 2, when the unblock, lock body 1 is when the direction rotation of unblock, latch hook 6 can enter into breach 120 from slot 130 in to outwards break away from lock body 1 from breach 120, when locking, insert lock body 1 with latch hook 6 from breach 120 in and realize locking.

As shown in fig. 2 and 3, the clutch blocks include a first clutch block 30 and a second clutch block 31 mounted on the lock body 1, and the first clutch block 30 and the second clutch block 31 are hinged with the lock body 1 through a torsion spring 14, the first clutch block 30 is located between the notch 120 of the unlocking position 12 and the second clutch block 31, the first clutch block 30 includes a hollow cylinder 300 hinged with the lock body 1 through the torsion spring 14, two V-shaped first extension blocks 301 connected to the side of the hollow cylinder 300, one first extension block 301 protrudes into the notch 120, the other first extension block 301 can abut against the second clutch block 31, the second clutch block 31 includes a hollow cylinder 300 and two V-shaped or linear second extension blocks 310 of the two hollow cylinders 300, one second extension block 310 abuts against the first extension block 301 of the approaching side of the first clutch block 30, and the other second extension block 310 can be blocked with the first protrusion 20 of the fixing seat 2 to play a role in rotating the lock body 1. When unlocking, the lock body 1 is rotated to enable the lock hook 6 to enter an unlocking position from a locking position (namely, enter the notch 120 from the slot 130, the lock body 1 rotates 90 degrees anticlockwise), the second extension block 310 of the second clutch block 31 is clamped with the first projection 20 of the fixed seat 2, the lock body 1 is positioned at the 90-degree position, the lock hook 6 can be outwards separated from the lock body 1 from the unlocking position, the first clutch block 30 can be touched but the second clutch block 31 cannot be touched when the lock hook 6 is outwards separated, and the lock body 1 is fixed, so that the lock hook 6 can be unlocked. When locking, the latch hook 6 is inserted into the lock body 1 from the notch 120, the latch hook 6 triggers one first extension block 301 of the first clutch block 30, so that the hollow barrel 300 of the first clutch block 30 rotates and drives the other first extension block 301 to abut against the second extension block 310 on the corresponding side of the second clutch block 31, so that the second clutch block 31 rotates, the second extension block 310 on the other side of the second clutch block 31 is dislocated with the first bump 20 of the fixing seat 2, so that the fixing seat 2 releases the restriction on the rotation of the lock body 1, and at the moment, the lock body 1 is driven by the torsion spring 14 to automatically rotate at a partial angle, so that the latch hook 6 enters the locking position from the unlocking position, and the latch hook 6 can be locked. Above-mentioned structure sets up, when the unblock, only need let rotate lock body 1 to 90 make clutch block and fixing base 2 joint for lock body 1 location is in 90 position, and latch hook 6 can unblock, and when latch hook 6 outwards breaks away from lock body 1, because latch hook 6 only touches first clutch block 30 and does not touch second clutch block 31, so lock body 1 still remains in original 90 position, and such structure sets up the benefit and does: can directly close when the lock case, can not outwards break away from the lock body 1 because of latch hook 6 then lock body 1 resumes the rotation and makes latch hook 6 striking lock body 1 when the lock case, the structure sets up ingenious, and easy operation. When the lock is locked, the lock hook 6 is only required to be inserted into the lock body 1, the first clutch block 30 is triggered when the lock hook 6 is inserted, the first clutch block 30 drives the second clutch block 31 to rotate, so that the second clutch block 31 is dislocated with the first lug 20, the rotation limit on the lock body 1 is released by the fixed seat 2, the lock body 1 can automatically rotate to lock the lock hook 6, and after the box is closed, only the lock hook 6 is required to be inserted inwards, the lock body 1 automatically rotates to lock the lock hook 6, and articles in the box are prevented from falling out; and, when the case is full of things, people can close the case, insert latch hook 6 promptly, and latch hook 6 just can lock automatically, avoids holding the case with one hand, and the complex operation of the rotatory lock body 1 of one hand can realize the one hand and lock the case, and the case is locked conveniently.

As shown in fig. 4, the novel coded lock further comprises a connecting block 4 and a locking piece 5, the connecting block 4 can be hinged with the lock body 1, the locking piece 5 can limit the rotation of the lock body 1, the locking piece 5 and the connecting block 4 are both located on the second surface of the lock body 1, a straight groove 15 penetrating through the first surface and the second surface of the locking body 1 is formed in the lock body 1, the straight groove 15 is rectangular, the connecting block 4 comprises a cylinder 40 capable of being hinged with the lock body 1 in a rotating mode, a clamping block 41, a first shifting block 42 and a second shifting block 43 which are opposite to the clamping block 41 are arranged on the cylinder 40, the clamping block 41 can be inserted into the straight groove 15 and extend towards the direction of the second protruding block 21, the clamping block 41 is clamped with the second protruding block 21, a protruding 44 is arranged at the end portion of the first shifting block 42, one end of the protruding 44 is connected with an elastic piece, the elastic piece is in elastic butt with the lock body 1, the other end of the elastic piece is in the periphery of the protruding 44, and the second shifting block 43 is located on the side of the first shifting block 42.

The locking piece 5 comprises a coded lock 50 and a key lock 51, the coded lock 50 comprises a movable piece 500, a coded wheel spring 501, a coded wheel 502 and a coded wheel 503, wherein the coded wheel spring 501, the coded wheel 502 and the coded wheel 503 are arranged on the movable piece 500, a containing groove 504 for containing the coded wheel 502 and a convex part 505 protruding inwards from the side edge of the containing groove 504 are arranged on the movable piece 500, a notch 506 engaged with the convex part 505 is arranged on the coded wheel 502, a third protruding block 507 extends towards the direction of the connecting block 4, the third protruding block 507 can be used for being abutted with the first shifting block 42 and pushing the first shifting block 42 to rotate, when the coded wheel 503 is correct in coded input, the convex part 505 can be inserted into the notch 506 to enable the movable piece 500 to move towards the unlocking direction, the movable piece 500 moves to drive the third protruding block 507 to push the first shifting block 42, then the connecting block 4 rotates with the central axis of the cylinder 40 as a hinge point, at the moment, the elastic piece is in a compressed state, the clamping block 41 and the second protruding block 21 are dislocated, so that the rotation limitation of the lock body 1 by the fixing seat 2 can be relieved from the rotation of the locking body 1, and the elastic piece 1 can be relieved from the action of the elastic piece 4 when the elastic piece returns to the hinge point.

The key lock 51 is installed at the side of the connecting block 4, the key lock 51 comprises a lock cylinder 510 and a third shifting block 511 connected with the lock cylinder 510, when the key is inserted into the lock cylinder 510 and the lock cylinder 510 is rotated, the lock cylinder 510 rotates to drive the third shifting block 511 to rotate, so that the third shifting block 511 pushes the second shifting block 43 to rotate, and the cylinder 40 of the connecting block 4 rotates with the central axis as a hinge point, because the connecting block 4 rotates, the elastic piece is in a compressed state, the clamping block 41 and the second protruding block 21 are misplaced, the fixing seat 2 releases the rotation restriction on the lock body 1, at the moment, the lock body 1 can be rotated, and when the third shifting block 511 releases the pressing force on the second shifting block 43, the elastic piece drives the cylinder 40 of the connecting block 4 to rotate back with the central axis as the hinge point under the action of the elastic force.

In the application, the first surface of the fixing seat 2 and the first surface of the latch hook 6 are respectively positioned on the lower box body and the upper box body, the second surface of the fixing seat 2 and the lock body 1 are hinged together through the torsion spring 14, the latch hook 6 is clamped on the locking position 13 through the hook part 62, the clutch block can limit the rotation of the lock body 1, when the lock body 1 rotates towards the unlocking direction to enable the clutch block to be clamped with the fixing seat 2, the lock body 1 is positioned at the position, the latch hook 6 can enter the unlocking position 12 from the locking position 13, and the latch hook 6 can be unlocked; when the latch hook 6 is buckled into the lock body 1 from the unlocking position 12, the latch hook 6 triggers the clutch block to enable the fixed seat 2 to release the restriction on the rotation of the lock body 1, the lock body 1 can rotate under the drive of the torsion spring 14 to automatically rotate and lock the latch hook 6, the latch hook 6 enters into the locking position 13 from the unlocking position 12, the latch hook 6 can be locked, namely, after the box is closed, the latch hook 6 is only required to be inserted inwards, the lock body 1 automatically rotates and locks the latch hook 6, so that articles in the box are prevented from falling out, and when the box is full of articles, people can close the box, the latch hook 6 can be automatically locked, the box is prevented from being pressed by one hand, the complex operation of rotating the lock body 1 by one hand can be realized, and the box is convenient to lock.

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 novel trick lock which characterized in that: the lock comprises a circular lock body arranged on the opening and closing side of a box body, a fixed seat, a lock hook and a clutch block, wherein the fixed seat is connected with the first surface of the lock body, the clutch block can limit the lock body to rotate, the first surface of the fixed seat is fixed on a lower box body, the second surface of the fixed seat is hinged with the middle part of the lock body, a torsion spring which can drive the lock body to rotate relative to the fixed seat is arranged in the middle of the lock body, the central axis of the lock body coincides with the central axis of the fixed seat, the lock body comprises a locking position and an unlocking position, the first surface of the lock hook is fixed on an upper box body, the second surface of the lock hook is provided with a hook part protruding into the locking position and is clamped with the lock body, the clutch block is arranged on the lock body, when the lock body rotates towards the unlocking direction to enable the clutch block to be clamped with the fixed seat, when the lock hook is buckled into the lock body from the unlocking position, the lock hook can trigger the lock hook to enable the lock body to be driven to rotate from the unlocking position to be limited by the torsion spring;

the fixing seat comprises a first protruding block, the first protruding block extends towards the direction of the lock body, the clutch block comprises a first clutch block and a second clutch block, the first clutch block and the second clutch block are hinged with the lock body through a torsion spring, the first clutch block is located at the side edge of the unlocking position, part of the structure of the first clutch block protrudes into the unlocking position, one end of the second clutch block can be abutted with the first clutch block, and the other end of the second clutch block can limit rotation of the first protruding block;

still include with the articulated connecting block of lock body, can restrict the lock body pivoted closure spare, closure spare with the connecting block all is located the second surface of lock body, the fixing base orientation the orientation of lock body extends there is the second lug, be equipped with on the lock body and run through its first surface and the straight flute of second surface, the straight flute corresponds the position setting of second lug, the connecting block be equipped with the fixture block of second lug joint, the fixture block can insert in the straight flute and orientation the orientation of second lug extends, works as the closure spare drives the rotation of connecting block, the fixture block can with the second lug dislocation for the fixing base is released to the rotation restriction of lock body.

2. The novel combination lock of claim 1, wherein: the locking piece comprises a coded lock, the coded lock comprises a movable piece, a code adjusting wheel spring, a code adjusting wheel and a coded wheel, wherein the code adjusting wheel spring, the code adjusting wheel and the coded wheel are arranged on the movable piece, the code adjusting wheel is provided with a containing groove for containing the code adjusting wheel and a convex part protruding inwards from the side edge of the containing groove, the code adjusting wheel is provided with a notch which is clamped with the convex part, the connecting block comprises a first shifting block, the movable piece extends towards the direction of the connecting block to form a third convex block, when the code of the coded wheel is input correctly, the convex part can be inserted into the notch to enable the movable piece to move towards the unlocking direction, the movable piece moves to drive the third convex block to push the first shifting block, and then the connecting block rotates with the central axis of the connecting block as a hinge point, so that the clamping block is dislocated with the second convex block, and the fixing seat releases the rotation restriction of the lock body.

3. A novel combination lock according to claim 2, wherein: the locking piece further comprises a key lock, the key lock is arranged on the side edge of the connecting block, the connecting block comprises a second shifting block, the key lock comprises a lock cylinder and a third shifting block connected with the lock cylinder, when a key is inserted into the lock cylinder and the lock cylinder is rotated, the lock cylinder rotates to drive the third shifting block to rotate, so that the third shifting block pushes the second shifting block, the connecting block rotates by taking the central axis of the connecting block as a hinge point, the clamping block is dislocated with the second protruding block, and the fixing seat releases the rotation restriction on the lock body.

4. A novel combination lock according to claim 3, wherein: the connecting block further comprises an elastic piece, one end of the elastic piece is elastically abutted against the first shifting block, the other end of the elastic piece is elastically abutted against the lock body, when the third protruding block pushes the first shifting block or the third shifting block pushes the second shifting block to enable the connecting block to rotate, the elastic piece is in a compression state, and when the third protruding block releases the abutting of the first shifting block or the third shifting block releases the abutting of the second shifting block, the elastic piece drives the connecting block to return to rotate by taking the central axis of the connecting block as a hinge point under the action of elastic force.

5. A novel combination lock according to any one of claims 1-4, wherein: the unlocking position and the locking position are both located on the side edge of the lock body, the locking position comprises a slot convenient for the hook part of the lock hook to be inserted, the unlocking position comprises a notch which is located on the side edge of the slot and communicated with the slot, and the notch penetrates through the side wall of the lock body outwards.

6. A novel combination lock according to any one of claims 1-4, wherein: the fixing seat is provided with an arc-shaped plate, the central axis of the arc-shaped plate coincides with the central axis of the lock body in the axial direction, a fixing block is arranged at the position of the lock body corresponding to the arc-shaped plate, a ball elastic piece which can be in elastic butt joint with the fixing block and a ball connected with the end part of the ball elastic piece are accommodated on the fixing block, the ball is positioned between the ball elastic piece and the arc-shaped plate, and the ball is in rolling connection with the arc-shaped plate.

7. The novel combination lock of claim 6, wherein: both ends of the arc-shaped plate are provided with a limiting groove capable of containing the balls.