Rope coded lock with automatic zeroing mode

Abstract

The utility model relates to the technical field of locksets, in particular to a cable coded lock with an automatic zeroing mode, which comprises a shell, a code case component and a knob lock cylinder are arranged on the shell, the code case component comprises a mounting frame, a character wheel component and an elastic sheet component are arranged on the mounting frame, and a lock hole is arranged on the top of the shell corresponding to the side wall of the knob lock cylinder. A lock catch is movably sleeved with the lock hole, a lock rope is fixedly connected to the side wall of the lock catch, the tail of the lock rope is fixedly connected to the shell, a rotary limiting groove is formed in the upper portion of the rotary knob lock cylinder and is a through groove, a slotted hole is formed in the far end of the rotary limiting groove and rotationally corresponds to the lock hole, and when the slotted hole is aligned with the lock hole, the lock catch is inserted and pulled out. A cable buckling and rotating unlocking mechanism is arranged, the knob lock cylinder is rotated after unlocking, the slotted hole is aligned with the lock hole, and the padlock function is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a rope and cable code lock with an automatic zeroing mode. Background Art

[0002] A padlock is a lock body equipped with a lock beam or lock rope that can be buckled. A lock head is provided at the front end of the lock rope. The structure of the lock head is mostly spherical or cylindrical. The lock body is generally provided with a lock head slot of corresponding structure for buckling with the lock head. The wheel combination lock has the convenience of electronic lock and the stability of key mechanical lock, and is widely used in the market.

[0003] The existing wheel combination lock usually includes a combination locking part and an emergency key unlocking part, and both can be opened separately. When the password part is used to unlock, the current wheel combination lock will still display the correct password after unlocking or locking. The user needs to actively scramble the password to prevent the password from being leaked, which is inconvenient to operate. Therefore, it is necessary to realize a safety padlock based on the existing technology. Utility Model Content

[0004] The utility model aims at the deficiencies in the prior art and provides a rope and cable combination lock with an automatic zeroing mode, comprising a shell, a combination box assembly and a knob lock core arranged on the shell, the combination box assembly comprising a mounting frame, the mounting frame being provided with a character wheel assembly and a spring assembly, a lock hole being arranged on the top of the shell corresponding to the side wall of the knob lock core, a lock buckle being movably sleeved in the lock hole, a lock rope being fixedly connected to the side wall of the lock buckle, a tail of the lock rope being fixedly connected to the shell, a rotation limiting groove being arranged on the upper part of the knob lock core, the rotation limiting groove being a through groove, a slot hole being arranged at the far end of the rotation limiting groove, the slot hole being arranged in rotation corresponding to the lock hole, and the lock buckle being plugged in and out when the slot hole is aligned with the lock hole.

[0005] Preferably, the mounting frame is rotatably mounted with a stop frame and a pawl member, the stop frame is against the character wheel assembly through the spring sheet assembly, the character wheel assembly includes a central axis, a plurality of coupling wheels and a character wheel sleeved on the central axis, the character wheel is integrally formed with a cam, the pawl member cooperates with the cam, the knob lock core cooperates with the pawl member through a driving structure, the coupling wheel is provided with a positioning hole and a groove, the cam is correspondingly provided with a positioning column, the positioning column is coupled with the positioning hole, the stop frame is provided with a protrusion that is embedded and cooperated with the groove, the stop frame is also integrally formed with a stop block, the knob lock core is provided with a locking block, the stop block cooperates with the locking block to stop rotation, one end of the central axis is provided with a reset elastic member, the other end of the central axis is provided with a fixed block, and the knob lock core is provided with an avoidance ring groove.

[0006] Preferably, the cam is configured as a logarithmic spiral wheel; the driving structure includes an extension column integrally formed with the pawl member, a sloped groove provided on the side wall of the knob lock core, and the mounting frame is correspondingly provided with an extension hole for the extension column to extend out, the extension column is embedded in and matched with the sloped groove, and when the knob lock core rotates, the sloped groove drives the extension column to move up and down.

[0007] Preferably, the front end of the positioning column is provided with an arcuate end face, and a displacement gap is formed between the fixing block and the coupling wheel; the coupling wheel is provided with a notch connected to the groove, the protrusion is provided with a convex block matching the notch, and the knob lock core is provided with an embedding groove, and when the fixing block is located in the embedding groove, the arcuate end face is coupled with the positioning hole.

[0008] Preferably, the reset elastic member is configured as a reset spring, a retaining ring is sleeved on the central axis, one end of the reset elastic member abuts against the retaining ring, and the other end of the reset elastic member abuts against the mounting bracket.

[0009] Preferably, the spring assembly includes a spring body, a plurality of elastic sheets and an elastic pick arranged on the spring body, the elastic sheet abuts against the anti-rotation frame, so that the anti-rotation frame always has a tendency to move closer to the character wheel assembly, and the elastic pick abuts against the character wheel.

[0010] Preferably, a lock core assembly and a straight slide groove are provided in the knob lock core, and the lock core assembly drives the lock block to move along the straight slide groove; the knob lock core is provided with a through hole for the lock block to extend out, and the lock core assembly drives the lock block to move through a transmission structure, and when the lock block extends out of the through hole and the anti-rotation frame is pressed down by the coupling wheel, the lock block cooperates with the anti-rotation block stopper, and the anti-rotation block is provided with a guide arc surface, and the guide arc surface cooperates with the lock block guide.

[0011] Preferably, the lock core assembly includes a lock body, a plurality of lock plates arranged on the lock body and a rotating block connected to the lock body, the transmission structure includes an eccentric shaft arranged on the rotating block and a stop block corresponding to the lock block, when the rotating block drives the eccentric shaft to rotate, the side wall of the eccentric shaft abuts against the stop block to drive the lock block to displace; a clamping spring is provided in the knob lock core, and the clamping spring drives the lock block to always have a movement tendency to extend out of the through hole, and a limiting hole is provided in the lock block, one end of the clamping spring abuts against the limiting hole, and the other end of the clamping spring abuts against the inner wall of the knob lock core.

[0012] Preferably, the locking block is configured as a Z shape as a whole, and the locking block includes a front end and a rear end, the front end corresponds to the through hole, the side wall of the knob lock core is also provided with a through hole, the rear end corresponds to the through hole, and the inner wall of the shell corresponds to a limiting groove, and when the knob lock core rotates, the rear end cooperates with the limiting groove.

[0013] Preferably, a movable sleeve is coaxially arranged in the knob lock core, and a telescopic spring is arranged between the movable sleeve and the knob lock core, and the telescopic spring drives the movable sleeve to always extend out of the knob lock core; the outer wall of the movable sleeve is provided with an arcuate surface and a flat cut surface, and a transition inclined surface is formed between the flat cut surface and the arcuate surface on one side, and when the knob lock core rotates, the fixed block moves from the arcuate surface to the flat cut surface, and the movable sleeve is pressed into the knob lock core under the guiding action of the transition inclined surface, at which time the fixed block is located in the avoidance ring groove, and the movable sleeve is also provided with a positioning groove adjacent to the embedding groove, the positioning groove is connected to the avoidance ring groove, the positioning groove is provided with a first guide surface, and the embedding groove is provided with a second guide surface.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: a ratchet piece is rotatably arranged in the mounting frame, and the ratchet piece cooperates with the knob drive through the driving structure. By turning the knob, the ratchet piece can toggle the cam so that the character wheel automatically returns to zero and resets in time, which has a higher safety effect; a groove is arranged on the coupling wheel and a protrusion is arranged on the anti-rotation frame. When the password input by the character wheel is the correct password, the spring sheet assembly can drive the anti-rotation frame to lift up, so that the protrusion is correspondingly embedded in the groove, and at the same time drive the anti-rotation block to lift up, so that the anti-rotation block and the lock block form an avoidance, and the knob can be turned to unlock; in the unlocking state (public state), The coupling wheel is coupled to the cam, and a new password can be set by rotating the character wheel, and the resetting process is relatively quick and simple; a guide arc surface is set on the anti-rotation block. When locking, the extended lock block cooperates with the guide arc surface to press the anti-rotation block relatively downward to form an avoidance, which is convenient for the lock block to reset and lock. In this way, when using the emergency key to unlock, the key can be pulled out after unlocking, or it can be retained, which has the effect of being more convenient to use and higher safety; a cable buckle and rotation unlocking mechanism are set, and after unlocking, the knob lock core is rotated to align the slot hole with the lock hole to separate and unlock the lock buckle from the knob lock core to realize the padlock function. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the drawings are only some embodiments of the utility model. For ordinary technicians in this field, other embodiments and their drawings can be obtained based on the embodiments shown in these drawings without paying creative work.

[0016] Figure 1 The utility model is a schematic diagram of the overall structural relationship of a rope and cable combination lock with an automatic zeroing mode.

[0017] Figure 2 The utility model is a cross-sectional schematic diagram showing the overall structural relationship of a rope-cable combination lock with an automatic zeroing mode.

[0018] Figure 3 The utility model is a schematic diagram of the internal structure relationship of a rope combination lock with an automatic zeroing mode.

[0019] Figure 4 The utility model is a schematic diagram of a cable code shelling state with an automatic zeroing mode.

[0020] Figure 5 The utility model is an exploded diagram of the parts of a rope and cable combination lock with an automatic zeroing mode.

[0021] Figure 6 The utility model is a schematic diagram of a code wheel of a cable code lock with an automatic zeroing mode.

[0022] Figure 7 The utility model is a schematic diagram of a knob lock core part of a cable combination lock with an automatic zeroing mode.

[0023] Figure 8 The utility model is a partial schematic diagram of one side of a knob lock core of a cable combination lock with an automatic zeroing mode.

[0024] Fig. 9 The utility model is a partial cross-sectional view of a knob lock core of a cable combination lock with an automatic zeroing mode.

[0025] Fig.10 The utility model is a cross-sectional schematic diagram of a code wheel of a cable code lock with an automatic zeroing mode.

[0026] Fig.11 The utility model is a schematic diagram of a knobless lock core portion of a cable code lock with an automatic zeroing mode.

[0027] In the figure: 1, housing; 11, mounting hole; 12, limiting groove; 13, lock hole; 14, lock rope; 15, lock buckle; 2, password box assembly; 21, mounting frame; 211, extension hole; 22, anti-rotation frame; 221, anti-rotation block; 222, guide arc surface; 223, protrusion; 2231, protrusion; 23, pawl member; 231, pawl; 232, extension column; 24, spring sheet body; 241, elastic sheet; 242, elastic paddle; 3, knob lock core; 31, slope groove; 32, straight slide groove; 33, lock body; 34, lock sheet; 35, rotating block; 351, eccentric shaft; 36, through hole; 37, through hole; 38, connecting block; 39, rotation limiting groove; 391, slot; 4, character wheel assembly; 41, center axis; 411, fixed block; 412, retaining ring; 42, coupling wheel; 421, bushing; 422, positioning hole; 423, groove; 424, notch; 43, character wheel; 431, cam; 432, positioning column; 4321, arc-shaped end face; 44, reset spring; 5, locking block; 51, stopper; 52, front end; 53, rear end; 54, limiting hole; 6, tightening spring; 7, movable sleeve; 71, arc-shaped surface; 72, flat cut surface; 73, avoidance ring groove; 74, transition slope; 75, positioning groove; 751, first guide surface; 76, embedded groove; 761, second guide surface; 8, telescopic spring. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the various embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments described in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] The embodiment of the utility model provides a cable code lock with an automatic zeroing mode, such as Figure 1-11 As shown, it includes a housing 1, on which a password box assembly 2 and a knob lock core 3 are arranged. The housing 1 is provided with a mounting hole 11, and the knob lock core 3 is rotatably mounted in the mounting hole 11. A lock hole 13 is provided at the top of the housing 1 corresponding to the side wall of the knob lock core 3. A lock buckle 15 is movably sleeved in the lock hole 13, and a lock rope 14 is fixedly connected to the side wall of the lock buckle 15, and the tail of the lock rope 14 is fixedly connected to the housing 1.

[0030] The password box assembly 2 includes a mounting frame 21, and the mounting frame 21 is buckled and connected to the housing 1. The mounting frame 21 is provided with the character wheel assembly 4 and the spring assembly. The mounting frame 21 is also rotatably mounted with a stop frame 22 and a pawl 23. One side of the stop frame 22 is rotatably mounted on the mounting frame 21 through a rotating shaft, and the other side of the stop frame 22 is extended to form a stop block 221, and the side wall of the stop block 221 is provided with a guide arc surface 222.

[0031] The character wheel assembly 4 includes a central shaft 41, four coupling wheels 42 sleeved on the central shaft 41, and a character wheel 43. The center of the coupling wheel 42 coaxially extends to form a bushing 421, and the character wheel 43 is rotatably arranged on the bushing 421. A cam 431 is integrally formed on one side of the character wheel 43. In this embodiment, the cam 431 is configured as a logarithmic spiral wheel. The pawl member 23 is provided with a plurality of pawls 231. The upper surface of the pawl 231 is configured as a plane. The pawl 231 is matched with the logarithmic spiral wheel.

[0032] The knob lock core 3 and the pawl member 23 are driven and matched by a driving structure, and the driving structure includes an extension column 232 integrally formed with the pawl member 23, and a sloped groove 31 provided on the side wall of the knob lock core 3. The mounting frame 21 is provided with a corresponding extension hole 211 for the extension column 232 to extend. The extension column 232 is embedded and matched with the sloped groove 31. When the knob lock core 3 rotates, the sloped groove 31 drives the extension column 232 to move up and down. When the knob lock core 3 rotates 180°, the sloped groove 31 moves relative to the extension column 232, and the extension column 232 moves from the groove valley to the groove peak and then to the groove valley in the sloped groove 31. In the above process, the extension column 232 can move up and down along the sloped groove 31, completing the toggling process of the pawl member 23. The upper part of the knob lock core 3 is provided with a rotation limiting groove 39 , which is a through groove. The far end of the rotation limiting groove is provided with a slot hole 391 , and the slot hole 391 is rotatably provided corresponding to the lock hole 13 .

[0033] In this way, when the password lock is decrypted or locked, the garbled code process can be realized while rotating the knob lock core 3 to unlock or lock the lock, which can play an anti-peeping effect and has higher security.

[0034] The coupling wheel 42 is provided with a plurality of positioning holes 422, a groove 423 is provided on one side of the coupling wheel 42, a positioning column 432 is provided corresponding to the cam 431, the positioning column 432 is coupled with the positioning hole 422, and the front end of the positioning column 432 is provided with an arc-shaped end surface 4321. The anti-rotation frame 22 is provided with a protrusion 223 that is embedded and matched with the groove 423, a convex block 2231 is provided in the middle of the protrusion 223, and the convex block 2231 and the protrusion 223 are in a "human" shape as a whole, and the coupling wheel 42 is provided with a notch 424 that is connected with the groove 423, and the notch 424 allows the protrusion 2231 to extend into.

[0035] A fixing block 411 is fixedly provided at the front end of the central shaft 41, and a displacement gap is formed between the fixing block 411 and the first coupling wheel 42. A retaining ring 412 is fixedly provided at the rear end of the central shaft 41, and a return spring 44 is sleeved on the central shaft 41, one end of the return spring 44 abuts against one side of the retaining ring 412, and the other end of the return spring 44 abuts against the mounting frame 21.

[0036] The spring sheet assembly includes a spring sheet body 24, a plurality of elastic sheets 241 and an elastic paddle 242 disposed on the spring sheet body 24, wherein the elastic sheet 241 abuts against the anti-rotation frame 22, so that the anti-rotation frame 22 always has a tendency to move toward the coupling wheel 42, and the elastic paddle 242 abuts against the character wheel 43, and a plurality of convex marks are disposed on the side wall of the character wheel 43. Since the elastic paddle 242 abuts against the side wall of the character wheel 43, when the character wheel 43 is being toggled, the convex marks and the elastic paddle 242 intermittently bounce, and when the character wheel 43 is being toggled, a more obvious toggling feeling is generated, which can improve the toggling feel to a certain extent.

[0037] The knob lock core 3 is provided with a lock core assembly and a straight slide groove 32. A lock block 5 is slidably provided in the straight slide groove 32. The lock core assembly drives the lock block 5 to move along the straight slide groove 32 through a transmission structure. The lock core assembly includes the lock body 33, a plurality of lock pieces 34 provided on the lock body 33, and a rotating block 35 connected to the lock body 33. The transmission structure includes an eccentric shaft 351 provided on the rotating block 35 and a stopper 51 corresponding to the lock block 5. When the rotating block 35 drives the eccentric shaft 351 to rotate, the side wall of the eccentric shaft 351 abuts against the stopper 51 to drive the lock block 5 to move. The knob lock core 3 is provided with the through hole 36 for the lock block 5 to extend out. When the lock block 5 extends out of the through hole 36 and the anti-rotation frame 22 is pressed down by the coupling wheel 42, the lock block 5 is anti-rotated with the anti-rotation block 221. In addition, the guide arc surface 222 can be guided with the lock block 5. The lock block 5 is configured as a Z-shape as a whole. The lock block 5 includes a front end 52 and a rear end 53. The front end 52 corresponds to the through hole 36. The side wall of the knob lock core 3 is also provided with a through hole 37. The rear end 53 corresponds to the through hole 37. The inner wall of the housing 1 is correspondingly provided with a limiting groove 12. When the knob lock core 3 rotates, the rear end 53 can be limitedly matched with the limiting groove 12. The locking block 5 is provided with a limiting hole 54 on one side close to the rear end portion 53, and a clamping spring 6 is arranged in the limiting hole 54, one end of the clamping spring 6 is pressed against the inner wall of the limiting hole 54, and the other end of the clamping spring 6 is pressed against the inner wall of the knob lock core 3.

[0038] When the emergency key is inserted into the lock body 33 and rotated, the eccentric shaft 351 on the rotating block 35 can be driven to move relatively. During the movement of the eccentric shaft 351, its side wall abuts against the stopper 51, which can push the lock block 5 to retract into the knob lock core 3; when the emergency key rotates the lock core assembly in the opposite direction, the force of the eccentric shaft 351 on the stopper 51 is removed, and under the elastic force of the clamping spring 6, the lock block 5 can move out of the through hole 36 and pass through the knob lock core 3 again. One end of the clamping spring 6 extends into the limiting hole 54, which can play a certain limiting role on the clamping spring 6 to prevent it from being displaced and failing during the expansion and contraction process.

[0039] When the locking block 5 moves relative to the straight sliding groove 32 so that the front end portion 52 retracts into the knob lock core 3, the rear end portion 53 extends relatively from the through hole 37. When the knob lock core 3 is rotated in order to avoid the stop block 221, the rear end portion 53 moves in the limiting groove 12 until the side wall of the stop block 221 abuts against the side wall of the limiting groove 12. Then, the emergency key can be reversed so that the locking block 5 is displaced in the opposite direction again, and the rear end portion 53 retracts into the knob lock core 3, while the front end portion 52 extends. In this way, through the limiting cooperation between the rear end portion 53 and the limiting groove 12, the rotation angle of the knob lock core 3 can be fed back in time, prompting the user to turn the emergency key.

[0040] The movable sleeve 7 is coaxially arranged in the knob lock core 3, and the bottom end of the knob lock core 3 is provided with the connecting block 38 for connecting the lock tongue, and a telescopic spring 8 is arranged between the movable sleeve 7 and the knob lock core 3, and the telescopic spring 8 drives the lower part of the movable sleeve 7 to always extend out of the knob lock core 3; the outer wall of the movable sleeve 7 is provided with an arc surface 71, a plane cut surface 72 and an avoidance ring groove 73, and a transition inclined surface 74 is formed between the plane cut surface 72 and the arc surface 71 on one side; when the knob lock core 3 is rotated, the fixed block 411 moves from the arc surface 71 to the plane cut surface 72, and the movable sleeve 7 is pressed into the knob lock core 3 under the guiding action of the transition inclined surface 74, and at this time, the fixed block 411 is located in the avoidance ring groove 73, and when the knob lock core 3 is rotated to unlock, the fixed block 411 moves along the avoidance ring groove 73. The movable sleeve 7 is also provided with adjacent positioning grooves 75 and embedding grooves 76. The positioning groove 75 is connected to the avoidance ring groove 73. The positioning groove 75 is provided with a first guide surface 751, and the embedding groove 76 is provided with a second guide surface 761. When the fixed block 411 is located in the embedding groove 76, the arc-shaped end surface 4321 is coupled with the positioning hole 422. The flat cut surface 72 and the transition slope 74 are correspondingly located at one end of the avoidance ring groove 73, and the positioning groove 75 is located at the other end of the avoidance ring groove 73.

[0041] When the fixed block 411 is against the arc surface 71, the coupling structure is in a fully coupled state; when the knob lock core 3 is rotated by a certain angle, the fixed block 411 transitions to the avoidance ring groove 73 through the flat cut surface 72 and the transition slope 74. At the same time, the fixed block 411 presses the movable sleeve 7 upward into the knob lock core 3, and the telescopic spring 8 is compressed. When the knob lock core 3 is rotated to unlock, the fixed block 411 moves in the avoidance ring groove 73. When the front end of the fixed block 411 is correspondingly located below the positioning groove 75, the movable sleeve 7 is extended downward under the elastic force of the telescopic spring 8, and the fixed block 411 is correspondingly embedded in the positioning groove 75. Then, the knob lock cylinder 3 is rotated in the reverse direction, and under the guidance of the first guide surface 751, the fixed block 411 is disengaged from the positioning groove 75 and embedded in the embedding groove 76. The knob is further rotated in the same direction, and under the guidance of the second guide surface 761, the fixed block 411 is disengaged from the embedding groove 76 and rotated to reset.

[0042] The basic working principle of the present invention is: in the initial locking state, the protrusion 2231 on the anti-rotation frame 22 is pressed down by the coupling wheel 42, so that the anti-rotation block 221 is in the lower position and cooperates with the locking block 5 to stop rotation. At this time, the knob lock core 3 cannot rotate, and the coupling wheel 42 and the cam 431 are in a fully coupled state.

[0043] When using the password to unlock, the dial wheel 43 is turned. When the wheel 43 rotates, the coupling wheel 42 is driven to rotate through the cam 431. When the wheel 43 is located at the correct password position, the groove 423 of the coupling wheel 42 is just opposite to the protrusion 223 of the anti-rotation frame 22. The spring assembly drives the anti-rotation frame 22 to lift up, so that the protrusion 223 is engaged with the groove 423. At the same time, the anti-rotation frame 22 drives the anti-rotation block 221 to lift up to the upper position. In this way, the lock block 5 and the anti-rotation block 221 form a avoidance, and the knob lock core 3 can be rotated to make the rotation limit groove 39 rotate, thereby aligning the slot 391 with the lock hole 13, so as to achieve the separation and unlocking of the lock buckle 15 on the knob lock core 3.

[0044] When the knob lock core 3 rotates, the driving structure can drive the pawl member 23 to be lifted and act on the cam 431, and the toggle cam 431 rotates and resets, and the cam 431 drives the character wheel 43 to rotate and reset to the "0" position. In this way, automatic zeroing can be achieved during the unlocking and locking process only by rotating the knob lock core 3. Timely reset can effectively prevent peeping and has a higher security effect.

[0045] After unlocking, the central shaft 41 pushes the coupling wheel 42 thereon to move axially away from the character wheel 43 through the retaining ring 412 under the elastic force of the return spring 44, so that the positioning column 432 and the positioning hole 422 are in a separated state, and the password can be reset when locking. The toggling wheel 43 is moved to a new password. When the knob lock cylinder 3 is rotated in the opposite direction to lock, the fixed block 411 abuts against the arc surface 71, causing the central axis 41 to move in the opposite direction. The fixed block 411 abuts against the coupling wheel 42 to recouple it with the cam 431. Subsequently, the ratchet member 23 is driven again and the toggling cam 431 is reset, so that the wheel 43, the cam 431 and the coupling wheel 42 can rotate synchronously. The wheel 43 returns to zero. After the coupling wheel 42 rotates, its groove 423 is away from the protrusion 223 of the anti-rotation frame 22, thereby pressing the anti-rotation frame 22 downward so that the anti-rotation block 221 is located at the lower position again and locked with the lock block 5, so that the setting of a new password can be achieved during the locking process. In this way, the password can be different each time, so that the original password can be prevented from being memorized by others. It has high security and the password setting process is also convenient. The above mode is the public mode.

[0046] When the password is forgotten and the emergency key is used to unlock the door, the emergency key is inserted into the lock core assembly and rotated 180°. The transmission structure can drive the lock block 5 to move, so that the lock block 5 retracts into the knob lock core 3 along the straight slide groove 32. Since a clearance is formed between the lock block 5 and the stop block 221 at this time, the knob lock core 3 can be rotated 20° to 30° so that the lock block 5 correspondingly passes over the stop block 221, and then the emergency key is rotated 180° in the opposite direction so that the lock block 5 re-extends the knob lock core 3. The knob lock core 3 can be rotated along the original rotation direction to unlock the door.

[0047] When it is necessary to re-lock after use, it is only necessary to reversely rotate the knob lock core 3 to reset it. During the rotation process, the knob lock core 3 drives the extended lock block 5 to move. When the lock block 5 abuts against the stop block 221, the stop block 221 is relatively pressed down under the guiding action of the guide arc surface 222 of the stop block 221, and a clearance can be formed between the two in the horizontal position. When the lock block 5 passes over the stop block 221, the stop block 221 is reset again, and the stop block 221 forms a resistance with the lock block 5 again, and locking can be achieved. At this time, the knob lock core 3 cannot be rotated to unlock. In this way, when the emergency key is used to unlock, the key can be pulled out after unlocking, or it can be retained, which has the effect of being more convenient to use and higher safety.

[0048] In addition, after unlocking with the emergency key, the password can be cleared. If the user forgets the password, the previously set password can be restored to the factory settings. During the rotation of the knob lock core 3, when the fixed block 411 is located in the embedding groove 76, the fixed block 411 pushes the central axis 41 to move a certain distance along the axial direction, so that the arc-shaped end surface 4321 of the positioning column 432 extends into the positioning hole 422, and the non-positioning column 432 is completely inserted into the positioning hole 422. At this position, the password can be cleared and reset. The clearing process is as follows: turn the character wheel 43 in turn, so that each character wheel 43 rotates at least 360°. During the rotation of the character wheel 43, the arc-shaped end surface 4321 is coupled with the positioning hole 422, which can drive the coupling wheel 42 to rotate until the groove 423 of the coupling wheel 42 corresponds to the convex block 2231. During the rotation of the character wheel 43, since the coupling wheel 42 has not been moved to the position corresponding to the groove 423 and the protrusion 2231, the end face of the coupling wheel 42 cannot be displaced in the axial direction due to the blocking and limiting effect of the protrusion 2231; until the groove 423 rotates to correspond to the protrusion 2231, as the character wheel 43 rotates, the coupling wheel 42 moves along the axial direction of the central axis 41 in the direction away from the cam 431 under the guidance of the arc-shaped end face 4321, and finally the coupling effect between the coupling wheel 42 and the character wheel 43 disappears. At this time, the groove 423 of the coupling wheel 42 corresponds to the protrusion 223. The remaining character wheels 43 are rotated in sequence. When the grooves 423 of the coupling wheels 42 corresponding to all the character wheels 43 correspond to the protrusions 223, the anti-rotation frame 22 is lifted up by the elastic force of the spring assembly, and the protrusions 223 are correspondingly engaged in the grooves 423, and the protrusions 2231 are correspondingly extended into the notches 424, and the password clearing process is completed. In this way, the password can be restored to factory settings.

[0049] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view. The scope of the present invention is defined by the appended claims, rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0050] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A cable combination lock with an automatic zeroing mode, comprising a housing (1), a combination box assembly (2) and a knob lock cylinder (3) being arranged on the housing (1), the combination box assembly (2) comprising a mounting frame (21), the mounting frame (21) being provided with a character wheel assembly (4) and a spring assembly, characterized in that: A lock hole (13) is provided at the top of the shell (1) corresponding to the side wall of the knob lock core (3), a lock buckle (15) is movably sleeved in the lock hole (13), a lock rope (14) is fixedly connected to the side wall of the lock buckle (15), and the tail of the lock rope (14) is fixedly connected to the shell (1), and a rotation limit groove (39) is provided at the upper part of the knob lock core (3), the rotation limit groove (39) is a through groove, and the far end of the rotation limit groove is provided as a slot hole (391), and the slot hole (391) is arranged to rotate correspondingly with the lock hole (13), and when the slot hole (391) is aligned with the lock hole (13), the lock buckle (15) can be inserted and removed.

2. A cable combination lock with automatic zeroing mode according to claim 1, characterized in that: The mounting frame (21) is rotatably mounted with a stop frame (22) and a pawl member (23); the stop frame (22) is pressed against the character wheel assembly (4) through the spring assembly; the character wheel assembly (4) comprises a central axis (41), a plurality of coupling wheels (42) sleeved on the central axis (41) and a character wheel (43); the character wheel (43) is integrally formed with a cam (431); the pawl member (23) and the cam (431) are toggled in cooperation; the knob lock core (3) and the pawl member (23) are driven and cooperated through a driving structure; the coupling wheel (42) is provided with a positioning hole (422), a groove (42 3), the cam (431) is provided with a corresponding positioning column (432), the positioning column (432) is coupled with the positioning hole (422), the anti-rotation frame (22) is provided with a protrusion (223) embedded in the groove (423), the anti-rotation frame (22) is also integrally formed with a anti-rotation block (221), the knob lock core (3) is provided with a locking block (5), the anti-rotation block (221) and the locking block (5) are anti-rotationally matched, one end of the central axis (41) is provided with a reset elastic member, the other end of the central axis (41) is provided with a fixed block (411), and the knob lock core (3) is provided with an avoidance ring groove (73).

3. A cable combination lock with automatic zeroing mode according to claim 2, characterized in that: The cam (431) is configured as a logarithmic spiral wheel; the driving structure comprises an extension column (232) integrally formed with the pawl member (23), and a sloped groove (31) provided on the side wall of the knob lock core (3); the mounting frame (21) is correspondingly provided with an extension hole (211) for the extension column (232) to extend out; the extension column (232) is embedded and matched with the sloped groove (31); when the knob lock core (3) rotates, the sloped groove (31) drives the extension column (232) to move up and down.

4. A cable combination lock with automatic zeroing mode according to claim 2, characterized in that: The front end of the positioning column (432) is provided with an arc-shaped end surface (4321), and a displacement gap is formed between the fixing block (411) and the coupling wheel (42); the coupling wheel (42) is provided with a notch (424) connected to the groove (423), the protrusion (223) is provided with a convex block (2231) matched with the notch (424), and the knob lock core (3) is provided with an embedding groove (76). When the fixing block (411) is located in the embedding groove (76), the arc-shaped end surface (4321) is coupled with the positioning hole (422).

5. A cable combination lock with automatic zeroing mode according to claim 2, characterized in that: The reset elastic member is configured as a reset spring (44), a retaining ring (412) is sleeved on the central shaft (41), one end of the reset elastic member abuts against the retaining ring (412), and the other end of the reset elastic member abuts against the mounting frame (21).

6. A cable combination lock with automatic zeroing mode according to claim 2, characterized in that: The spring sheet assembly comprises a spring sheet body (24), a plurality of elastic sheets (241) and an elastic paddle (242) arranged on the spring sheet body (24); the elastic sheet (241) abuts against the anti-rotation frame (22), so that the anti-rotation frame (22) always has a tendency to move closer to the character wheel assembly (4); and the elastic paddle (242) abuts against the character wheel (43).

7. A cable combination lock with automatic zeroing mode according to claim 6, characterized in that: The knob lock core (3) is provided with a lock core assembly and a straight slide groove (32), and the lock core assembly drives the lock block (5) to move along the straight slide groove (32); the knob lock core (3) is provided with a through hole (36) for the lock block (5) to extend out, and the lock core assembly drives the lock block (5) to move through a transmission structure, and when the lock block (5) extends out of the through hole (36) and the anti-rotation frame (22) is pressed down by the coupling wheel (42), the lock block (5) and the anti-rotation block (221) are stopped and matched, and the anti-rotation block (221) is provided with a guide arc surface (222), and the guide arc surface (222) is matched with the guide of the lock block (5).

8. A cable combination lock with automatic zeroing mode according to claim 7, characterized in that: The lock core assembly comprises a lock body (33), a plurality of lock plates (34) arranged on the lock body (33) and a rotating block (35) connected to the lock body (33); the transmission structure comprises an eccentric shaft (351) arranged on the rotating block (35) and a stopper (51) corresponding to the lock block (5); when the rotating block (35) drives the eccentric shaft (351) to rotate, the side wall of the eccentric shaft (351) abuts against the stopper (51) to drive the lock block (5) to move; a tightening spring (6) is arranged in the knob lock core (3); the tightening spring (6) drives the lock block (5) to always have a movement tendency of extending out of the through hole (36); the lock block (5) is provided with a limiting hole (54); one end of the tightening spring (6) abuts against the limiting hole (54), and the other end of the tightening spring (6) abuts against the inner wall of the knob lock core (3).

9. A cable combination lock with automatic zeroing mode according to claim 8, characterized in that: The locking block (5) is configured as a Z-shape as a whole, and includes a front end portion (52) and a rear end portion (53), wherein the front end portion (52) corresponds to the through hole (36), the side wall of the knob lock core (3) is further provided with a through hole (37), and the rear end portion (53) corresponds to the through hole (37), and a limiting groove (12) is correspondingly provided on the inner wall of the shell (1), and when the knob lock core (3) is rotated, the rear end portion (53) is limitedly matched with the limiting groove (12).

10. A cable combination lock with automatic zeroing mode according to claim 2, characterized in that: A movable sleeve (7) is coaxially arranged inside the knob lock core (3), and a telescopic spring (8) is arranged between the movable sleeve (7) and the knob lock core (3), and the telescopic spring (8) drives the movable sleeve (7) to always extend out of the knob lock core (3); the outer wall of the movable sleeve (7) is provided with an arcuate surface (71) and a flat cut surface (72), and a transition inclined surface (74) is formed between the flat cut surface (72) and the arcuate surface (71) on one side, and when the knob lock core (3) rotates, the fixed block (411) is moved by the arcuate surface (71) to the movable sleeve (7). The shaped surface (71) moves to the plane cutting surface (72), and under the guiding action of the transition inclined surface (74), the movable sleeve (7) is pressed into the knob lock core (3). At this time, the fixed block (411) is located in the avoidance ring groove (73), and the movable sleeve (7) is also provided with a positioning groove (75) adjacent to the embedding groove (76). The positioning groove (75) is connected to the avoidance ring groove (73), and the positioning groove (75) is provided with a first guide surface (751), and the embedding groove (76) is provided with a second guide surface (761).

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