Novel coded lock

Abstract

The utility model discloses a novel coded lock, which can automatically reset a code during unlocking and locking, and comprises a first lock catch, a second lock catch, a lock body, a code component, a rotation stopping piece, a return-to-zero driving lever, a movable buckle and a key, the first lock catch and the second lock catch are arranged on the two pieces to be locked; the first end of the lower surface of the lock body movably hooks the first lock catch, and the second end of the lower surface is in swinging connection with the second lock catch; the code assembly is arranged on the upper surface of the lock body and comprises a retainer, a movable shaft, a lining, a code wheel and a magnet. The rotation stopping piece is arranged in the lock body and is opposite to the password wheel to limit the rotation of the password wheel; the zeroing deflector rod is axially and movably matched in the lock body, is opposite to the rotation stopping piece and is used for driving the rotation stopping piece to be in contact with the password wheel or not; the movable buckle is axially and movably matched at the second end of the lower surface of the lock body, the first end of the movable buckle movably abuts against the zeroing deflector rod to be linked with the rotation stopping piece, and the second end of the movable buckle movably hooks the second lock catch; the key is matched with the second end of the lock body in a telescopic mode, abuts against the movable shaft and movably abuts against the movable buckle.

Description

Technical Field

[0001] The utility model relates to the technical field of word wheel combination locks, in particular to a new combination lock that can be applied to bags. Background Art

[0002] Currently, most luggage locks on the market use three password wheels. By turning one wheel and rotating it to a pre-set number (password), you can enter a single-digit password. When all three wheels are turned to the pre-set numbers (passwords) at the same time, the lock can be unlocked.

[0003] Luggage locks are usually used in suitcases and other luggage that are convenient for users to carry items when going out to protect important property. However, current luggage locks do not have a password reset function. After entering the password, the user can only manually scramble the password, which is troublesome to operate. Some users may forget to scramble the password after locking the bag for various reasons, which may lead to the risk of property loss. Utility Model Content

[0004] The purpose of the utility model is to provide a new type of password lock, solve the problems existing in the prior art, have an automatic password reset function, and ensure the password security and property security of users.

[0005] In order to achieve the above purpose, the solution of the utility model is:

[0006] A new type of password lock, comprising a first lock catch, a second lock catch, a lock body, a password assembly, a rotation-stopping member, a reset lever, a movable catch and a button; the first lock catch and the second lock catch are respectively fixed on two opposite parts to be locked; the first end of the lower surface of the lock body is movably hooked on the first lock catch, and the second end of its lower surface is swingably connected with the second lock catch; the password assembly is arranged on the upper surface of the lock body, and comprises a retaining frame installed in the lock body, a movable shaft axially movably penetrated by the retaining frame, a plurality of pairs of bushings and password wheels, and a plurality of magnets; the bushing is sleeved on the movable shaft, and can be relatively stationary or relatively rotated with the movable shaft as the movable shaft moves axially; the password wheel is arranged corresponding to the bushing, and can be axially movable with the bushing The sleeve rotates synchronously or relatively; magnets that attract each other are arranged at the relative positions of the code wheel and the movable shaft; the anti-rotation piece is arranged in the lock body and opposite to the code wheel to limit the rotation of the code wheel; the zero return lever is axially movably engaged in the lock body and opposite to the anti-rotation piece, used to drive the anti-rotation piece to control whether it contacts the code wheel; the movable buckle is axially movably engaged at the second end of the lower surface of the lock body, and its first end movably abuts against the zero return lever with its own axial movement to realize the linkage with the anti-rotation piece, and the second end of the movable buckle is movably hooked on the second lock buckle; the button is telescopically engaged at the second end of the lock body and abuts against the movable shaft, and movably abuts against the movable buckle.

[0007] The first lock buckle is provided with a first hook portion, and the second lock buckle is provided with a second hook portion; a limiting convex portion is provided at the first end of the lower surface of the lock body; the limiting convex portion is movably hooked on the first hook portion; and the movable buckle is movably hooked on the second hook portion.

[0008] The new combination lock also includes a connecting rod and a torsion spring; the two ends of the connecting rod are pivotally connected to the second lock buckle and the lock body respectively, and a torsion spring is provided between the connecting rod and the second lock buckle, and between the connecting rod and the lock body, for providing elastic force to drive the lock body to swing in a direction away from the second lock buckle.

[0009] The outer periphery of the movable shaft is provided with a plurality of first protrusions, the bushing corresponds to the first protrusions one by one, the inner wall of the bushing is provided with a first groove arranged opposite to the first protrusion, and the first protrusion is movably fitted in the first groove along with the axial movement of the movable shaft.

[0010] Preferably, the outer circumference of the bushing is provided with a plurality of second protrusions arranged at equal intervals, the inner wall of the cipher wheel is provided with a second slot arranged opposite to the second protrusion, and the second protrusion is movably fitted in the second slot.

[0011] Preferably, a movable groove corresponding to each code wheel is arranged in the retaining frame, and the movable groove makes way for the rotation of the code wheel and provides space so that the retaining frame does not push the code wheel when moving.

[0012] The password assembly also includes a sleeve shaft spring; the sleeve shaft spring is arranged between the end of the movable shaft and the retaining frame, and is used to drive the movable shaft to move in the direction of the movable buckle.

[0013] A plurality of anti-rotation grooves are arranged on the periphery of the code wheel; an anti-rotation spring is arranged between the anti-rotation member and the lock body; the anti-rotation member abuts against the periphery of the code wheel under the elastic force of the anti-rotation spring, and fits in one of the anti-rotation grooves as the code wheel rotates.

[0014] Preferably, the return-to-zero lever is arranged between the anti-rotation part and the code wheel, and the side of the return-to-zero lever facing the anti-rotation part is provided with a first inclined groove corresponding to the anti-rotation part; the anti-rotation part is embedded in the first inclined groove when it abuts against the code wheel under the elastic force of the anti-rotation spring; a return-to-zero reset spring is provided between the return-to-zero lever and the lock body, which is used to drive the return-to-zero lever to move toward the direction of the movable buckle.

[0015] A locking spring is arranged between the movable buckle and the lock body, and is used to drive the movable buckle to move toward the direction of the button.

[0016] Preferably, the new combination lock also includes a lock core installed on the upper surface of the lock body, and a lock core tail installed on the inner end of the lock core; the lock core is transmission-connected to the lock core tail for driving the lock core tail to rotate; the lock core tail is provided with a boss that movably abuts against the movable buckle, and the boss movably abuts against the movable buckle as the lock core tail rotates and pushes the movable buckle to move in a direction away from the button.

[0017] Preferably, the new type of password lock also includes a code-seeking piece, a code-seeking lever, a code-seeking spring and a code-seeking reset spring; a code-seeking notch is arranged on the outer periphery of the bushing; the code-seeking piece is arranged on the side of the bushing, and moves toward the bushing under the elastic force of the code-seeking spring; the code-seeking lever is arranged between the bushing and the code-seeking piece and slidingly cooperates with the lock body, and a second inclined groove corresponding to the code-seeking piece is arranged on the side of the code-seeking lever facing the code-seeking piece; the code-seeking reset spring is arranged between the lock body and the code-seeking lever, and is used to drive the code-seeking lever to make the code-seeking piece misaligned with the second inclined groove, and the code-seeking piece compresses the code-seeking spring; the lock core tail is transmission-connected with the code-seeking lever, and is used to drive the code-seeking lever.

[0018] A code-changing lever is sleeved on one end of the movable shaft away from the button, and oblique teeth are arranged on the opposite surfaces of the code-changing lever and the retaining frame, and the operating rod of the code-changing lever is located on the lower surface of the lock body.

[0019] After adopting the above technical solution, the utility model has the following technical effects:

[0020] The user inputs the password by turning the password wheel and drives the bushing to rotate. When the input password of the password assembly is correct, the button can be pressed to drive the movable shaft to move axially relative to the retaining frame / bushing / password wheel. During the pressing of the button, the movable buckle is driven to disengage from the second lock buckle, thereby unlocking the restriction between the second end of the lock body and the second lock buckle. The lock body can swing relative to the second lock buckle, thereby unlocking the restriction between the first end of the lock body and the first lock buckle, and unlocking can be achieved; while unlocking, since the movable buckle is also linked to the zeroing lever and the anti-rotation member, the anti-rotation member can be separated from the password wheel and unlock the anti-rotation function of the password wheel. At this time, the magnets between the password wheel and the movable shaft attract each other, and the password is reset during the unlocking process; during the locking process, since the positions of the first lock buckle and the second lock buckle are relatively fixed, the movable buckle will also be pushed by the second lock buckle during the second locking process and linked to the zeroing lever to reset the password during the locking process, that is, the password of the utility model can be automatically reset after unlocking and locking, which can prevent the user from forgetting to disrupt the password when unlocking or locking. The potential safety hazards caused by this can achieve the purpose of protecting the user's password security and property safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of a locked state of a specific embodiment of the utility model;

[0022] Figure 2 It is a three-dimensional diagram of the unlocking state of a specific embodiment of the utility model;

[0023] Figure 3 It is an exploded view of a specific embodiment of the utility model;

[0024] Figure 4 This is an exploded view of the password component;

[0025] Figure 5 It is a cross-sectional view of the locked state;

[0026] Figure 6 A schematic diagram of the unlocking process;

[0027] Figure 7 It is a cross-sectional view of the unlocked state;

[0028] Figure 8 This is a schematic diagram of the action of the zeroing lever in normal state;

[0029] Fig. 9This is a schematic diagram of the cooperation between the zero return lever and the anti-rotation member in a normal state;

[0030] Fig.10 This is a schematic diagram of the action of the zero return lever in the reset state;

[0031] Fig.11 It is a schematic diagram of the cooperation between the zero return lever and the anti-rotation member in the reset state;

[0032] Fig.12 This is a schematic diagram of the action of the code search lever in a normal state;

[0033] Fig.13 This is a schematic diagram of the coordination between the code-finding lever and the code-finding member in a normal state;

[0034] Fig.14 This is a schematic diagram of the action of the code-finding lever in the code-finding state;

[0035] Fig.15 This is a schematic diagram of the coordination between the code-finding lever and the code-finding member in a normal state;

[0036] Fig.16 This is a back view of some structures in normal state;

[0037] Fig.17 This is a schematic diagram of the action of the code change lever in a normal state;

[0038] Fig.18 It is a back view of part of the structure in the code-changing state;

[0039] Fig.19 It is a schematic diagram of the action of the code change lever in the code change state;

[0040] Description of Figure Numbers:

[0041] 1-first lock buckle; 11-first hook; 2-second lock buckle; 21-second hook; 3-lock body; 31-limiting convex part; 4-password assembly; 41-retaining frame; 411-movable groove; 42-movable shaft; 421-first convex block; 422-limiting ring; 43-bushing; 431-first card slot; 432-second convex; 433-code finding notch; 44-password wheel; 441-second card slot; 442-stop groove; 45-magnet; 46-sleeve shaft spring; 5-stop member; 6-return Zero lever; 61-first inclined slide groove; 7-movable buckle; 8-button; 9-connecting rod; 10-torsion spring; 20-cover plate; 30-anti-rotation spring; 40-zero reset spring; 50-locking spring; 60-lock cylinder; 70-lock cylinder tail; 701-boss; 80-code-finding piece; 90-code-finding lever; 901-second inclined slide groove; 100-code-finding spring; 200-code-finding reset spring; 300-code-changing lever; 3001-oblique teeth; 3002-operating lever; 400-transmission piece. DETAILED DESCRIPTION

[0042] In order to further explain the technical solution of the present utility model, the present utility model is described in detail below through specific embodiments.

[0043] refer to Figures 1 to 19 As shown, the utility model discloses a novel combination lock, comprising a first lock buckle 1, a second lock buckle 2, a lock body 3, a combination component 4, a rotation stopper 5, a zero return lever 6, a movable buckle 7 and a button 8;

[0044] The first lock buckle 1 and the second lock buckle 2 are respectively fixed on two opposite parts to be locked (such as two sides of the opening of the bag);

[0045] The first end of the lower surface of the lock body 3 is movably hooked on the first lock buckle 1, and the second end of the lower surface thereof is swingably connected to the second lock buckle 2;

[0046] The password assembly 4 is arranged on the upper surface of the lock body 3, and includes a retaining frame 41 installed in the lock body 3, a movable shaft 42 axially movably penetrated through the retaining frame 41, a plurality of pairs of bushings 43 and password wheels 44, and a plurality of magnets 45; the bushing 43 is sleeved on the movable shaft 42, and can be relatively stationary or relatively rotated with the movable shaft 42 as the movable shaft 42 moves axially; the password wheel 44 is arranged corresponding to the bushing 43, and can rotate synchronously or relatively with the bushing 43; magnets 45 that attract each other are arranged at the relative position between the password wheel 44 and the movable shaft 42; when the bushing 43 and the password wheel 44 are rotatable relative to the movable shaft 42, they will rotate due to the mutual attraction of the magnets 45 on the movable shaft 42 and the password wheel 44 until the distance between the magnets 45 of the two becomes the smallest state, and reset is achieved;

[0047] The anti-rotation member 5 is disposed in the lock body 3 and is disposed opposite to the code wheel 44, and is used to limit the rotation of the code wheel 44 due to the mutual attraction of the magnets 45;

[0048] The zero-reset lever 6 is axially movable in the lock body 3 and is arranged opposite to the anti-rotation member 5, and is used to drive the anti-rotation member 5 to control whether it contacts with the code wheel 44;

[0049] The movable buckle 7 is axially movable and matched with the second end of the lower surface of the lock body 3, and its first end is axially movable and abuts against the zeroing lever 6 to realize the linkage with the anti-rotation member 5, and the second end of the movable buckle 7 is movably hooked on the second lock buckle 2;

[0050] The button 8 is telescopically fitted at the second end of the lock body 3 and abuts against the movable shaft 42, and movably abuts against the movable buckle 7; the button 8 always abuts against the end of the movable shaft 42 so that it can move axially only when the password is correct.

[0051] Through the above scheme, see Figure 6 and Figure 7The user inputs the password by turning the password wheel 44 and drives the bushing 43 to rotate. When the input password of the password assembly 4 is correct, the button 8 can be pressed to drive the movable shaft 42 to move axially relative to the retaining frame 41 / bushing 43 / password wheel 44. During the pressing of the button 8, the movable buckle 7 is driven to disengage from the second lock buckle 2, thereby unlocking the restriction between the second end of the lock body 3 and the second lock buckle 2. The lock body 3 can swing relative to the second lock buckle 2, thereby unlocking the restriction between the first end of the lock body 3 and the first lock buckle 1, and unlocking can be achieved; while unlocking, the movable buckle 7 also links the zeroing lever 6 and the anti-rotation member 5, so that the anti-rotation member 5 can be separated from the password. The code wheel 44 is unlocked to stop the rotation of the code wheel 44. At this time, the magnet 45 between the code wheel 44 and the movable shaft 42 attracts each other, realizing the password reset in the unlocking process (the default password is generally reset to "000"); in the locking process, since the positions of the first lock buckle 1 and the second lock buckle 2 are relatively fixed, the movable buckle 7 will also be pushed by the second lock buckle 2 during the buckling of the second lock buckle 2 and linked to the zeroing lever 6, realizing the password reset in the locking process. That is, the utility model can automatically reset the password after unlocking and locking, which can prevent the safety hazard caused by the user forgetting to scramble the password when unlocking or locking, thereby achieving the purpose of protecting the user's password security and property safety.

[0052] Specific embodiments of the present utility model are shown below.

[0053] In this embodiment, there are three pairs of bushings 43 and code wheels 44, and three corresponding anti-rotation members 5 are also provided, and are driven by a return-to-zero lever 6. Of course, in other embodiments, the three anti-rotation members 5 can also be made into an integral part.

[0054] The above-mentioned "axial movement" means that in a preferred embodiment, the moving directions of the movable shaft 42, the zero-reset lever 6, and the movable buckle 7 are consistent, that is, the moving directions of the three are parallel to each other. At the same time, it can be understood that the sliding grooves for sliding cooperation of the zero-reset lever 6, the movable buckle 7, and the button 8 are provided at the corresponding positions of the lock body 3, so as to guide the movement of these accessories and ensure functional stability.

[0055] The first lock buckle 1 and the second lock buckle 2 can be fixedly connected to the locked component by screw locking, welding or the like.

[0056] The first lock buckle 1 is provided with a first hook portion 11, and the second lock buckle 2 is provided with a second hook portion 21; a limiting protrusion 31 is provided at the first end of the lower surface of the lock body 3; the limiting protrusion 31 is movably hooked on the first hook portion 11; and the movable buckle 7 is movably hooked on the second hook portion 21.

[0057] The utility model further comprises a connecting rod 9 and a torsion spring 10; the two ends of the connecting rod 9 are respectively pivotally connected with the second lock buckle 2 and the lock body 3, and a torsion spring 10 is arranged between the connecting rod 9 and the second lock buckle 2, and between the connecting rod 9 and the lock body 3, for providing elastic force to drive the lock body 3 to swing in a direction away from the second lock buckle 2 (see Figure 7 ).

[0058] The outer circumference of the movable shaft 42 is provided with a plurality of first protrusions 421, and the bushing 43 corresponds to the first protrusions 421 one by one. The inner wall of the bushing 43 is provided with a first groove 431 arranged opposite to the first protrusion 421, and the first protrusion 421 is movably fitted in the first groove 431 as the movable shaft 42 moves axially. In the locked state, the first protrusion 421 and the first groove 431 are misaligned in the circumferential direction of the movable shaft 42, that is, the movable shaft 42 cannot move axially relative to the bushing 43, and the bushing 43 and the movable shaft 42 can rotate relative to each other; when the password wheel 44 is in a state where the password is correct, that is, in the unlocked state, the first protrusion 421 is aligned with the first groove 431, and the movable shaft 42 can move axially (pushed by the movable buckle 7), and after the first protrusion 421 is inserted into the first groove 431, the bushing 43 and the movable shaft 42 are relatively stationary.

[0059] Furthermore, the outer periphery of the bushing 43 is provided with a plurality of second protrusions 432 arranged at equal intervals, and the inner wall of the code wheel 44 is provided with a second slot 441 arranged opposite to the second protrusion 432. The second protrusion 432 is movably engaged in the second slot 441 to realize the spline engagement of the bushing 43 and the code wheel 44, and the two can rotate synchronously. When setting the password, the bushing 43 is pushed by the retaining frame 41 (see below for how the retaining frame 41 moves) so that the second protrusion 432 escapes from the second slot 441, that is, the bushing 43 and the code wheel 44 are in a relatively rotatable state. The user can then turn the code wheel 44 to change the password. During the process, the bushing 43 maintains a relative angle with the movable shaft 42 because the first protrusion 421 is embedded in the first slot 431; when the password is set, the retaining frame 41 is reset, and the second protrusion 432 is embedded in the second slot 441 again, so that the bushing 43 and the code wheel 44 remain relatively still, which can ensure that the code word of the correct password on the code wheel 44 uniquely corresponds to the first slot 431 of the bushing 43.

[0060] At the same time, the retaining frame 41 is provided with a movable groove 411 corresponding to each code wheel 44, and the movable groove 411 makes way for the rotation of the code wheel 44 and provides space so that the retaining frame 41 does not push the code wheel 44 when moving. The utility model also includes a cover plate 20, which is fixedly installed in the lock body 3 by means of screw locking, etc., and is used to limit the protective frame 41 to prevent the cover plate 20 from falling out of the lock body 3, and at the same time limit the axial movement of the code wheel 44 relative to the lock body 3.

[0061] The password assembly 4 further includes a sleeve spring 46; the sleeve spring 46 is disposed between the end of the movable shaft 42 and the retaining frame 41, and is used to drive the movable shaft 42 to move toward the movable buckle 7, so that the movable buckle 7 can be reset to achieve locking. In this embodiment, a limit ring 422 is provided at one end of the movable shaft 42 facing the movable buckle 7, the sleeve spring 46 is sleeved on the movable shaft 42, and the two ends of the sleeve spring 46 abut against the retaining frame 41 and the limit ring 422 respectively.

[0062] Both ends of the retaining frame 41 are sleeved on the movable shaft 42 and respectively abut against the bushings 43 at both ends of the inner side of the retaining frame 41 , so that the retaining frame 41 can drive the bushings 43 to move when moving.

[0063] The outer circumference of the above-mentioned code wheel 44 is provided with a plurality of anti-rotation grooves 442, and anti-rotation grooves 442 are provided between adjacent "codes"; an anti-rotation spring 30 is provided between the anti-rotation member 5 and the lock body 3; the anti-rotation member 5 abuts against the outer circumference of the code wheel 44 under the elastic force of the anti-rotation spring 30, and cooperates in one of the anti-rotation grooves 442 as the code wheel 44 rotates, so as to limit the rotation of the code wheel 44 caused by the mutual attraction of the magnets 45. When the user needs to input the code and performs the action of turning the code wheel 44, the anti-rotation member 5 will be pushed and the anti-rotation spring 30 will be compressed, so that the anti-rotation member 5 does not interfere with the rotation of the code wheel 44, that is, it does not interfere with the action of the user inputting the code, and only limits the rotation of the code wheel 44 caused by the influence of the magnetic force.

[0064] Furthermore, the zero-reset lever 6 is arranged between the stopper 5 and the code wheel 44, and the first inclined surface groove 61 corresponding to the stopper 5 is arranged on the side of the zero-reset lever 6 facing the stopper 5; the stopper 5 is inserted into the first inclined surface groove 61 when it abuts against the code wheel 44 under the elastic force of the stopper spring 30; a zero-reset spring 40 is arranged between the zero-reset lever 6 and the lock body 3, which is used to drive the zero-reset lever 6 to move toward the movable buckle 7. When the zero-reset lever 6 is pushed by the movable buckle 7, the stopper 5 escapes from the first inclined surface groove 61 under the inclined surface of the first inclined surface groove 61, thereby moving away from the code wheel 44 and unlocking the restriction on the code wheel 44; when the user no longer presses the button 8, the zero-reset lever 6 will be reset under the elastic force of the zero-reset spring 40, so that the stopper 5 is re-inserted into the first inclined surface groove 61 and the code wheel 44 is stopped from rotating.

[0065] A locking spring 50 is provided between the movable buckle 7 and the lock body 3, and is used to drive the movable buckle 7 to move in the direction of the button 8, that is, to move in the locking direction to reset the movable buckle 7. When the user locks the door, even if the password is incorrect, the locking spring 50 can provide a buffer and give way for the movement of the movable buckle 7, thereby realizing the password-free locking function, and resetting the movable buckle 7 after the movable buckle 7 buckles the second lock buckle 2.

[0066] Furthermore, the utility model also includes a lock core 60 installed on the upper surface of the lock body 3, and a lock core tail 70 installed on the inner end of the lock core 60; the lock core 60 is transmission connected to the lock core tail 70 so that the lock core tail 70 can be driven to rotate when the key is inserted and rotated; the lock core tail 70 is provided with a boss 701 that movably abuts against the movable buckle 7, and the boss 701 movably abuts against the movable buckle 7 as the lock core tail 70 rotates and pushes the movable buckle 7 to move in a direction away from the button 8, so that emergency unlocking can be achieved by inserting the key without entering the password.

[0067] Secondly, the utility model also includes a code-finding member 80, a code-finding lever 90, a code-finding spring 100 and a code-finding reset spring 200; a code-finding notch 433 is provided on the periphery of the bushing 43; the code-finding member 80 is arranged on the side of the bushing 43, and moves toward the bushing 43 under the elastic force of the code-finding spring 100; the code-finding lever 90 is arranged between the bushing 43 and the code-finding member 80 and slides with the lock body 3, and a second inclined surface groove 901 corresponding to the code-finding member 80 is provided on the side of the code-finding lever 90 facing the code-finding member 80; the code-finding reset spring 200 is arranged between the lock body 3 and the code-finding lever 90, and is used to drive the code-finding lever 90 to make the code-finding member 80 misaligned with the second inclined surface groove 901, and the code-finding member 80 compresses the code-finding spring 100; the lock core tail 701 is transmission-connected with the code-finding lever 90, and is used to drive the code-finding lever 90, see Figures 12 to 15 After inserting the key and rotating the lock core 60, the code-finding lever 90 can be pushed to move, so that the code-finding member 80 is embedded in the second inclined sliding groove 901. The code-finding member 80 is pushed toward the bushing 43 under the action of the code-finding spring 100. If the code wheel 44 is the correct code at this time, the bushing 43 is facing the code-finding member 80, so that the code-finding member 80 is pushed by the code-finding spring 100 and embedded in the code-finding notch 433. Therefore, the correct code can be found by inserting the key and pushing the code-finding lever 90 and then rotating each code wheel 44, thereby realizing the code-finding function of the lock. In this embodiment, a transmission member 400 is provided between the lock core tail 70 and the code-finding lever 90 to realize the transmission connection between the two. The transmission direction of the force can be changed through the transmission member 400 to meet the space design requirements inside the lock body 3.

[0068] The end of the movable shaft 42 away from the button 8 is sleeved with a code change lever 300, and the code change lever 300 is provided with a helical tooth 3001 on the surface opposite to the retaining frame 41, and the operating rod 3002 of the code change lever 300 is located on the lower surface of the lock body 3. When the password is correct, the lock body 3 is opened to a state away from the first buckle 1 and the second buckle 2, and the first slot 431 of the bushing 43 is aligned with the first protrusion 421 of the movable shaft 42, see Figures 16 to 19, the user can operate the operating rod 3002 on the back of the lock body 3 to rotate the code-changing lever 300. When the code-changing lever 300 rotates, its oblique teeth 3001 push the retaining frame 41 to move away from the code-changing lever 300, that is, push the retaining frame 41 toward the second end of the lock body 3 and make it push the bushing 43 to separate from the password wheel 44, and the password can be changed at this time. When the code-changing lever 300 is no longer operated, the retaining frame 41 (under the action of the sleeve spring 46) is reset, and the password change is completed. The operating rod 3002 is designed on the lower surface of the lock body 3, so that the password can only be changed when the lock is in the unlocked state.

[0069] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present utility model.

Claims

1. A new type of password lock, characterized by: It includes a first lock buckle, a second lock buckle, a lock body, a password component, a rotation-stopping member, a zero-reset lever, a movable buckle and a button; The first lock buckle and the second lock buckle are respectively fixed on two opposite parts to be locked; The first end of the lower surface of the lock body is movably hooked on the first lock buckle, and the second end of the lower surface is swingably connected to the second lock buckle; The password assembly is arranged on the upper surface of the lock body, and comprises a retaining frame installed in the lock body, a movable shaft axially movably penetrated through the retaining frame, a plurality of pairs of bushings and password wheels, and a plurality of magnets; the bushing is sleeved on the movable shaft, and can be relatively stationary or relatively rotated with the movable shaft as the movable shaft moves axially; the password wheel is arranged corresponding to the bushing, and can rotate synchronously or relatively with the bushing; magnets that attract each other are arranged at the relative positions of the password wheel and the movable shaft; The anti-rotation member is arranged in the lock body and is arranged opposite to the password wheel to limit the rotation of the password wheel; The zero-reset lever is axially movable and fits in the lock body and is arranged opposite to the anti-rotation member, and is used to drive the anti-rotation member to control whether it contacts the code wheel; The movable buckle is axially movable and matched with the second end of the lower surface of the lock body, and the first end thereof is axially movable and abuts against the zero-reset lever to realize linkage with the anti-rotation member, and the second end of the movable buckle is movably hooked on the second lock buckle; The button is telescopically fitted at the second end of the lock body and abuts against the movable shaft, and movably abuts against the movable buckle.

2. The new combination lock as claimed in claim 1, characterized in that: It also includes a connecting rod and a torsion spring; the two ends of the connecting rod are respectively pivotally connected with the second lock buckle and the lock body, and a torsion spring is arranged between the connecting rod and the second lock buckle, and between the connecting rod and the lock body, for providing elastic force to drive the lock body to swing in a direction away from the second lock buckle.

3. The new combination lock as claimed in claim 1, characterized in that: The outer periphery of the movable shaft is provided with a plurality of first protrusions, the bushing corresponds to the first protrusions one by one, the inner wall of the bushing is provided with a first groove arranged opposite to the first protrusion, and the first protrusion is movably engaged in the first groove along with the axial movement of the movable shaft; the outer periphery of the bushing is provided with a plurality of second protrusions arranged at equal intervals, the inner wall of the password wheel is provided with a second groove arranged opposite to the second protrusion, and the second protrusion is movably engaged in the second groove.

4. The new combination lock as claimed in claim 3, characterized in that: The retaining frame is provided with an active groove corresponding to each code wheel, and the active groove makes way for the rotation of the code wheel and provides space so that the retaining frame does not push the code wheel when moving.

5. The new combination lock as claimed in claim 1, characterized in that: The password assembly also includes a sleeve shaft spring; the sleeve shaft spring is arranged between the end of the movable shaft and the retaining frame, and is used to drive the movable shaft to move in the direction of the movable buckle.

6. The new combination lock as claimed in claim 1, characterized in that: A plurality of anti-rotation grooves are arranged on the periphery of the code wheel; a anti-rotation spring is arranged between the anti-rotation piece and the lock body; the anti-rotation piece abuts against the periphery of the code wheel under the elastic force of the anti-rotation spring, and engages in one of the anti-rotation grooves as the code wheel rotates; the return-to-zero lever is arranged between the anti-rotation piece and the code wheel, and a first inclined sliding groove corresponding to the anti-rotation piece is arranged on the side of the return-to-zero lever facing the anti-rotation piece; the anti-rotation piece is embedded in the first inclined sliding groove when it abuts against the code wheel under the elastic force of the anti-rotation spring; a return-to-zero reset spring is arranged between the return-to-zero lever and the lock body, for driving the return-to-zero lever to move toward the direction of the movable buckle.

7. The new combination lock as claimed in claim 1, characterized in that: A locking spring is arranged between the movable buckle and the lock body, and is used to drive the movable buckle to move toward the direction of the button.

8. The new combination lock as claimed in claim 7, characterized in that: It also includes a lock core installed on the upper surface of the lock body, and a lock core tail installed on the inner end of the lock core; the lock core is transmission-connected to the lock core tail for driving the lock core tail to rotate; the lock core tail is provided with a boss that movably abuts against the movable buckle, and the boss movably abuts against the movable buckle as the lock core tail rotates and pushes the movable buckle to move in a direction away from the button.

9. The new combination lock as claimed in claim 8, characterized in that: It also includes a code-seeking piece, a code-seeking lever, a code-seeking spring and a code-seeking reset spring; a code-seeking notch is arranged on the outer periphery of the bushing; the code-seeking piece is arranged on the side of the bushing, and moves toward the bushing under the elastic force of the code-seeking spring; the code-seeking lever is arranged between the bushing and the code-seeking piece and slidingly cooperates with the lock body, and a second inclined groove corresponding to the code-seeking piece is arranged on the side of the code-seeking lever facing the code-seeking piece; the code-seeking reset spring is arranged between the lock body and the code-seeking lever, and is used to drive the code-seeking lever to make the code-seeking piece misaligned with the second inclined groove, and the code-seeking piece compresses the code-seeking spring; the lock core tail is transmission-connected with the code-seeking lever, and is used to drive the code-seeking lever.

10. The new combination lock as claimed in claim 1, characterized in that: A code-changing lever is sleeved on one end of the movable shaft away from the button, and oblique teeth are arranged on the opposite surfaces of the code-changing lever and the retaining frame, and the operating rod of the code-changing lever is located on the lower surface of the lock body.

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