CN111188535A - Novel character wheel coded lock - Google Patents

Abstract

The invention discloses a novel character wheel coded lock, which comprises a knob, a panel, a lock tongue and a character wheel assembly, wherein the knob and the panel can rotate relatively; the base is arranged on the panel, the character wheel shaft penetrates through the movable cavity and can move axially, the bushing is sleeved on the character wheel shaft and can rotate together or rotate relatively, the character wheel is sleeved on the bushing and can rotate together or rotate relatively, the reset mechanism is used for realizing character wheel reset, the positioning part is used for limiting the character wheel reset, and the protection frame is used for changing the matching mode of the character wheel and the bushing; the relative rotation of knob and panel has first position, second position and third position to realize locking, automatic character wheel reset and manual password setting function respectively. The invention has the function of automatic character wheel reset after unlocking and before locking, improves the safety of the product and prevents the leakage of the password.

Description

Novel character wheel coded lock

Technical Field

The invention relates to the field of coded locks, in particular to a novel character wheel coded lock.

Background

The character wheel coded lock has the advantages of convenience of an electronic lock and stability of a key mechanical lock, and is wide in application range in the market. The password of the character wheel coded lock in the current market is kept unchanged when the lock is unlocked, and after the lock is locked, a user needs to actively dial the messy password to prevent the password from being recognized by others, so that the potential safety hazard of password leakage exists.

Disclosure of Invention

The invention aims to provide a novel character wheel coded lock, which has the function of automatically resetting a character wheel after unlocking and before locking, improves the safety of products and prevents code leakage.

In order to achieve the above purpose, the solution of the invention is:

a novel character wheel coded lock comprises a knob, a panel, a lock tongue and a character wheel assembly, wherein the knob and the panel can rotate relatively; the knob is provided with an accommodating cavity for the pivotal matching of the panel; the lock tongue is arranged on the side wall of the accommodating cavity;

the character wheel assembly comprises a base with a movable cavity, a character wheel shaft, a plurality of groups of bushings and character wheels, a reset mechanism, a positioning piece and a protective frame; the base is arranged on the panel and is positioned in the accommodating cavity; the character wheel shaft penetrates through the movable cavity and can axially move to be matched with the lock tongue to realize unlocking and locking; the bushing is sleeved on the character wheel shaft and can be relatively static or relatively rotate with the character wheel shaft along with the axial movement of the character wheel shaft, and the character wheel is arranged corresponding to the bushing and can rotate together with the bushing or relatively rotate; the reset magnet is used for realizing the reset of the character wheel; the positioning piece is arranged on the base and is opposite to the character wheel so as to limit the reset of the character wheel; the protective frame is arranged on the base and can axially move so as to change the matching mode of the bushing and the character wheel;

the relative rotation of the knob and the panel drives the character wheel shaft and the protective frame to move along the axial direction of the base, and the positioning piece limits or unlocks the rotation of the character wheel, and the relative rotation process of the knob and the protective frame has a first position, a second position and a third position; when the password lock is in a first position, the character wheel shaft cannot move and is mutually limited with the lock tongue, the password lock is unlocked when the password lock is correct, the bushing can rotate relative to the character wheel shaft, the character wheel can rotate together with the bushing, and the positioning piece limits the reset of the character wheel; when the positioning piece is in the second position, the bushing can rotate relative to the print wheel shaft, the print wheel can rotate together with the bushing, and the positioning piece does not limit the reset of the print wheel so as to realize the automatic reset of the print wheel; when the password setting device is in the third position, the bushing and the character wheel shaft are relatively static, the character wheel can rotate relative to the bushing, and the positioning piece limits the character wheel to reset so as to realize manual password setting.

The resetting mechanism comprises a character wheel magnet and a resetting magnet, the character wheel magnet is arranged opposite to the character wheel, and the resetting magnet is used for attracting the character wheel magnet to reset the character wheel; the character wheel magnets are arranged in pairs, and each character wheel is provided with a pair of character wheel magnets with opposite different poles; the reset magnet is arranged along the axial direction of the character wheel shaft and is arranged on the character wheel shaft.

The outer periphery of the character wheel shaft is provided with a plurality of first protruding blocks, the lining corresponds to the first protruding blocks one by one, the inner wall of the lining is provided with first clamping grooves which are opposite to the first protruding blocks, and the first protruding blocks are movably matched in the first clamping grooves along with the movement of the character wheel shaft.

The periphery of bush is provided with the spacing arch of a plurality of equidistant settings, the inner wall of character wheel be provided with the relative spacing draw-in groove that sets up of spacing arch, spacing protruding clearance fit is in the spacing draw-in groove.

The side wall of the movable cavity is provided with a character wheel groove corresponding to each character wheel, and the character wheel groove is used for rotation abdication of the character wheel and limits axial movement of the character wheel in the movable cavity; the character wheel assembly further comprises a character wheel shaft spring and a protection frame spring which are arranged at the end part of the character wheel shaft far away from the lock tongue, so that elastic force is respectively provided to realize axial movement of the character wheel shaft and the protection frame; the character wheel assembly further comprises a spring mounting seat, the spring mounting seat is arranged between the end portion, far away from the lock tongue, of the character wheel shaft and the side wall of the containing cavity, and the character wheel shaft spring and the protection frame spring are both mounted on the spring mounting seat.

The first position, the second position and the third position are sequentially arranged, so that the functions of unlocking, automatic character wheel resetting and manual password setting are sequentially realized in the unlocking process in the relative rotation process of the knob and the panel, and the function of automatic character wheel resetting is realized in the locking process.

A novel character wheel trick lock still include the spring bolt spring, the lateral wall in holding chamber is provided with rotates the track, the spring bolt is installed rotate orbital one end and can follow the perpendicular to rotate orbital direction removal, the spring bolt spring sets up between the bottom in spring bolt and holding chamber, the one end clearance fit of character wheel axle is in rotate between orbital both ends, it is close to rotate the track the one end of spring bolt does first position, it keeps away from to rotate the track the one end of spring bolt does the third position.

An unlocking inclined plane and a locking inclined plane are respectively arranged on two sides of the lock tongue; the unlocking inclined surface faces to the unlocking direction of the word wheel shaft, so that the lock tongue provides component force for axially moving the word wheel shaft along with the rotation of the knob; the upper locking inclined surface faces to the locking direction of the word wheel shaft, so that the word wheel shaft provides component force for enabling the lock tongue to descend along with the rotation of the knob.

The novel character wheel coded lock further comprises an upper rail, a lower rail and a rail spring, wherein the upper rail, the lower rail and the rail spring are mounted on the side wall of the accommodating cavity, and the upper rail and the lower rail are arranged in a vertically opposite mode to form the rotating rail; a first abdicating groove for the axial moving abdicating of the protection frame is arranged on the inner side of the upper rail, a sliding connection inclined plane is connected between the first abdicating groove and the inner side of the upper rail, and the sliding connection inclined plane is arranged between the second position and the third position; the lower rail is opposite to the first abdicating groove; the rail spring is arranged between the lower rail and the bottom of the accommodating cavity; the lower rail is close to one end of the lock tongue is provided with a pressing inclined plane, the axial movement of the protection frame abuts against the pressing inclined plane to enable the lower rail to press down the rail spring, and therefore the protection frame is allowed to yield.

The character wheel assembly further comprises a positioning piece spring; the positioning piece is pivoted and matched on the base, one side of the positioning piece is provided with a clamping jaw which is arranged corresponding to the character wheel, a third clamping groove is formed between every two adjacent characters of the character wheel, and the clamping jaw and the third clamping groove are arranged oppositely; the positioning piece spring is arranged between the other side of the positioning piece and the base to provide elasticity to drive the positioning piece to rotate so as to enable the clamping jaw to be embedded in the third clamping groove; the bottom in holding chamber is provided with the unblock boss, the unblock boss with the opposite side of setting element sets up relatively, the setting element along with the rotation of knob with unblock boss clearance fit, the setting element with when unblock boss contact the jack catch breaks away from the third draw-in groove, the unblock boss corresponds the setting and is in between primary importance and the second place.

The novel character wheel coded lock further comprises a lock cylinder and a linkage assembly, the lock cylinder is mounted on the panel and penetrates into the accommodating cavity, and the linkage assembly is arranged at the inner end of the lock cylinder and opposite to the lock tongue; when a correct key is inserted, the lock cylinder can rotate and drive the lock tongue to move through the linkage assembly so as to realize unlocking with the word wheel shaft; the linkage assembly comprises a pushing block and a driving block, the pushing block is in sliding fit with the bottom of the accommodating cavity and can move along the circumferential direction of the accommodating cavity, and a second abdicating groove for abdicating the track spring is formed in the pushing block; the driving block is arranged at the inner end of the lock cylinder and drives the pushing block to move along with the rotation of the lock cylinder.

The character wheel assembly further comprises a density searching piece, the density searching piece is pivoted and matched on the base, one side of the density searching piece is provided with a plurality of probes correspondingly arranged with the lining, and the lining is provided with probe grooves correspondingly arranged with the probes; when the lock core rotates, the driving block drives the secret searching piece to rotate, the probe is matched with the surface of the lining, and when the password is correct, the probe is inserted into the probe groove.

And the panel is provided with a marking point which is correspondingly arranged with the third position, and the knob is provided with an indicating point for indicating the current rotating position.

After the technical scheme is adopted, the password replacing function is realized through the axial movement of the character wheel shaft and the protection frame, the automatic character wheel resetting is realized through the action change of the positioning piece and the matching of the resetting mechanism, the password can be messed automatically after the product is unlocked and before the product is locked every time, the risk of password leakage and loss is greatly reduced, and the potential safety hazard caused by the fact that a user forgets to disorder the password during locking is prevented.

Drawings

FIG. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is an exploded view of an embodiment of the present invention;

FIG. 3 is an exploded view of a wordlewheel assembly in accordance with an embodiment of the present invention;

FIG. 4 is a perspective view of a knob according to an embodiment of the present invention;

fig. 5 is a perspective view of a locking bolt in accordance with an embodiment of the present invention;

FIG. 6 is a perspective view of a word axle in accordance with an embodiment of the present invention;

FIG. 7 is a perspective view of a print wheel and bushing in accordance with an embodiment of the present invention;

FIG. 8 is a perspective view of a lower track in accordance with an embodiment of the present invention;

FIG. 9 is a front view of an initial state of an embodiment of the present invention;

FIG. 10 is a cross-sectional view taken at A-A of FIG. 9;

FIG. 11 is a cross-sectional view taken at B-B of FIG. 9;

FIG. 12 is a cross-sectional view taken at C-C of FIG. 9;

FIG. 13 is a cross-sectional view taken at D-D of FIG. 12;

FIG. 14 is a front view of an unlocked state of an embodiment of the present invention;

FIG. 15 is a schematic structural view of an unlocked state of the present invention;

FIG. 16 is a front view of an automatic print wheel reset state in accordance with an embodiment of the present invention;

FIG. 17 is a cross-sectional view taken along line A-A of FIG. 16;

FIG. 18 is a cross-sectional view taken along line C-C of FIG. 16;

FIG. 19 is a front view of a password entry in accordance with an embodiment of the present invention;

FIG. 20 is a front view of a manual password setting mode according to an embodiment of the present invention;

FIG. 21 is a front view of a locked state according to an embodiment of the present invention;

FIG. 22 is a schematic diagram of a lock state according to an embodiment of the present invention;

FIG. 23 is a front view of a key code-finding state according to an embodiment of the present invention;

FIG. 24 is a cross-sectional view taken along line A-A of FIG. 23;

the reference numbers illustrate: a knob 10; an accommodating chamber 101; a second card slot 1011; an unlocking boss 1012; an arcuate bore 1013; a rotating shaft 102; the indication point 103; a panel 20; a connecting column 201; marking points 202; a latch bolt 30; an unlocking ramp 301; an upper locking ramp 302; a second press down ramp 303; a print wheel assembly 40; a base 401; a movable chamber 4011; a print wheel slot 4012; a word wheel axis 402; a first bump 4021; a guide bevel 4022; a reset magnet 403; a bushing 404; a first card slot 4041; a limit protrusion 4042; a probe slot 4043; a print wheel 405; a limit clamp groove 4051; third card slot 4052; a character wheel magnet 406; a positioning member 407; a claw 4071; a protective frame 408; a word-axle spring 409; a cage spring 410; a spring mount 411; a keeper spring 412; a secret finder 413; a probe 4131; a latch bolt spring 50; an upper rail 60; a first yielding slot 601; a sliding contact ramp 602; a lower rail 70; a compression ramp 701; a second bump 702; a rail spring 80; a lock cylinder 90; a push block 100; a second abdicating groove 1001; a first press down ramp 1002; a driving block 200; a base plate 300; shaft hole 3001.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.

The invention relates to a novel character wheel coded lock, which comprises a knob 10, a panel 20, a bolt 30 and a character wheel assembly 40, wherein the knob and the panel can rotate relatively.

The knob 10 is provided with a receiving chamber 101.

The panel 20 is pivotally coupled to the opening of the accommodating chamber 101.

The latch 30 is installed on a sidewall of the receiving chamber 101.

The print wheel assembly 40 includes a base 401 having a movable chamber 4011, a print wheel shaft 402, a reset magnet 403, sets of bushings 404, a print wheel 405, and a print wheel magnet 406, as well as a spacer 407 and a fender bracket 408. The base 401 is mounted on the panel 20 and located in the accommodating cavity 101. A word-wheel shaft 402 extends through the movable chamber 4011 and moves axially in the axial direction of the movable chamber 4011, and one end of the word-wheel shaft 402 is disposed opposite to the locking bolt 30 to achieve unlocking and locking. A reset magnet 403 is mounted on the word wheel shaft 402. Bushing 404 fits over the word line shaft 402 and is either stationary relative to word line shaft 402 or rotatable relative to word line shaft 402 as word line shaft 402 moves axially. The print wheel 405 is disposed in correspondence with the bushing 404 and is rotatable with or relative to the bushing 404. The character wheel magnet 406 is provided corresponding to the character wheel 405. A keeper 407 is mounted on the base 401 and is positioned opposite the print wheel 405 to limit rotation of the print wheel 405 due to the attraction of the reset magnet 403 and the print wheel magnet 406. The protective frame 408 is mounted on the base 401 and is movable in the axial direction of the base 401 to move the bushing 404 relative to the print wheel 405 to change the manner in which the bushing 404 engages the print wheel 405.

Wherein, the relative rotation of the knob 10 and the faceplate 20 drives the print wheel shaft 402 and the protection bracket 408 to move along the axial direction of the base 401, and the positioning member 407 limits or unlocks the rotation of the print wheel 405, and the relative rotation process of the knob 10 and the faceplate 20 has a first position, a second position and a third position;

in the first position, the character wheel shaft 402 cannot move and is mutually limited with the bolt 30, and when the password is correct, the bolt is unlocked, the bushing 404 can rotate relative to the character wheel shaft 402, the character wheel 405 can rotate together with the bushing 404, and the positioning piece 407 limits the rotation of the character wheel 405;

in the second position, the bushing 404 can rotate relative to the print wheel shaft 402, the print wheel 405 can rotate together with the bushing 404, and the positioning member 407 unlocks the rotation of the print wheel 405 to realize automatic print wheel reset;

in the third position, the bushing 404 and the print wheel shaft 402 are stationary, the print wheel 405 and the bushing 404 can rotate relative to each other, and the positioning member 407 limits the rotation of the print wheel 405 to enable manual setting of the combination.

Referring to fig. 1-13, a specific embodiment of the present invention is shown.

The accommodating cavity 101 is disposed at one end of the knob 10, and the other end of the knob 10 is a locking end.

The character wheel magnets 406 are arranged in pairs, and each character wheel 405 is provided with a pair of character wheel magnets 406 with opposite poles.

The print wheel assembly 40 further includes an accelerating magnet (not shown) mounted on the base 401 and disposed parallel to the reset magnet 403 to increase magnetic force to achieve quick reset of the print wheel 405.

The outer periphery of the word wheel shaft 402 is provided with a plurality of first bumps 4021, the bushing 404 corresponds to the first bumps 4021 one by one, the inner wall of the bushing 404 is provided with a first clamping groove 4041 opposite to the first bumps 4021, and the first bumps 4021 are movably matched with the first clamping groove 4041 along with the movement of the word wheel shaft 402. Normally, the first protrusion 4021 and the first locking groove 4041 are dislocated in the circumferential direction of the character wheel shaft 402, that is, the bushing 404 and the character wheel shaft 405 cannot move axially relative to each other, and only when the character wheel 405 is in a correct password state, the bushing 404 and the character wheel shaft 405 can move relative to each other, that is, the character wheel shaft 405 can move axially.

The periphery of above-mentioned bush 404 is provided with the spacing arch 4042 that a plurality of equidistant settings, and the inner wall of character wheel 405 is provided with the spacing draw-in groove 4051 relative setting with spacing arch 4042, and spacing arch 4042 clearance fit realizes bush 404 and character wheel 405's spline fit in spacing draw-in groove 4051. When the password is set (manually or automatically), the limiting protrusion 4042 is in a state of being disengaged from the limiting clamping groove 4051, namely, the bushing 404 and the character wheel 405 are in a state of being capable of rotating relatively, after the password is set, the limiting protrusion 4042 is embedded into the limiting clamping groove 4051, so that the bushing 404 and the character wheel 405 are kept relatively static, and the code word of the correct password on the character wheel 405 can be ensured to be uniquely corresponding to the first clamping groove 4041 of the bushing 404.

The side wall of the movable cavity 4011 is provided with a print wheel groove 4012 corresponding to each print wheel 405, and the print wheel groove 4012 is used for avoiding the rotation of the print wheel 405 and limiting the axial movement of the print wheel 405 in the movable cavity 4011.

The word wheel assembly 40 further includes a word wheel shaft spring 409 and a protection frame spring 410 disposed at the other end of the word wheel shaft 402 to provide elastic force to achieve axial movement of the word wheel shaft 402 and the protection frame 408, respectively. The print wheel assembly 40 further includes a spring mounting seat 411, the spring mounting seat 411 is disposed between the other end of the print wheel shaft 402 and the side wall of the accommodating cavity 101, and the print wheel shaft spring 409 and the protection frame spring 410 are both mounted on the spring mounting seat 411. The spring mounting seat 411 is arranged to realize the positioning and mounting of the word axle spring 409 and the protection frame spring 410, and ensure that the two do not interfere with the relative rotation of the panel 20 and the knob 10.

The two ends of the protection frame 408 are sleeved on the word axle 402 and respectively abut against the bushings 404 at the two ends of the inner side of the protection frame 408, so that the protection frame 408 can drive the bushings 404 to move.

The first position, the second position and the third position are sequentially arranged, so that in the relative rotation process of the knob 10 and the panel 20, the functions of unlocking, automatic character wheel resetting and manual password setting are sequentially realized in the unlocking process, and the function of automatic character wheel resetting is realized in the locking process.

The invention also comprises a bolt spring 50, a rotating track (not shown in the figure) is arranged on the side wall of the accommodating cavity 101, the bolt 30 is arranged at one end of the rotating track and can move along the direction vertical to the rotating track, the bolt spring 50 is arranged between the bolt 30 and the bottom of the accommodating cavity 101, one end of the word wheel shaft 402 is movably matched between the two ends of the rotating track, one end of the rotating track close to the bolt 30 is a first position, and one end of the rotating track far away from the bolt 30 is a third position.

The locking tongue 30 is provided with an unlocking inclined plane 301 and an locking inclined plane 302 at both sides thereof. Unlocking ramp 301 faces the unlocking direction of word line shaft 402 so that locking tongue 30 provides a component force that moves word line shaft 402 axially as knob 10 is turned; upper lock ramp 302 faces in the locking direction of word line shaft 402 so that word line shaft 402 provides a component of force that lowers deadbolt 30 as knob 10 is rotated. Of course, one end of the word axle 402 may also be provided with a guide slope 4022 opposite to the unlocking slope 301 and the locking slope 302 to ensure that the relative movement between the two is smoother.

The present invention further includes an upper rail 60, a lower rail 70 and a rail spring 80 installed at a side wall of the receiving chamber 101, the upper rail 60 and the lower rail 70 being arranged in a vertical direction to form a rotation rail. A first abdicating groove 601 for the axial moving abdicating of the protection frame 408 is arranged on the inner side of the upper rail 60, a sliding connection inclined plane 602 is connected between the first abdicating groove 601 and the inner side of the upper rail 60, and the sliding connection inclined plane 602 is arranged between the second position and the third position; the lower rail 70 is opposite to the first yielding groove 601, the rail spring 80 is arranged between the lower rail 70 and the bottom of the accommodating cavity 101, one end of the lower rail 70, which is close to the latch tongue 30, is provided with a pressing inclined plane 701, and the axial movement of the protection bracket 408 pushes against the pressing inclined plane 701 to enable the lower rail 70 to press down the rail spring 80, so as to yield for the protection bracket 408.

The periphery of the lower rail 70 is provided with a second protrusion 702, the inner wall of the accommodating cavity 101 is provided with a second locking groove 1011, and the second protrusion 702 is inserted into the second locking groove 1011 to limit the lower rail 70 to make a circular motion on the inner wall of the accommodating cavity 101, so as to ensure the functional stability of the lower rail 70.

The character wheel assembly 40 further includes a positioning member spring 412, the positioning member 407 is pivotally coupled to the base 401, one side of the positioning member 407 has a claw 4071 corresponding to the character wheel 405, a third slot 4052 is disposed between two adjacent characters of the character wheel 405, the claw 4071 is disposed opposite to the third slot 4052, and the positioning member spring 412 is disposed between the other side of the positioning member 407 and the base 401 to provide an elastic force to drive the positioning member 407 to rotate, so that the claw 4071 is embedded in the third slot 4052, thereby limiting the character wheel 405 from rotating due to the mutual attraction between the reset magnet 403 and the character wheel magnet 406. The bottom of the accommodating cavity 101 is provided with an unlocking boss 1012, the unlocking boss 1012 is arranged opposite to the other side of the positioning member 407, the positioning member 407 is movably matched with the unlocking boss 1012 along with the rotation of the knob 10, the claw 4071 is separated from the third clamping groove 4052 when the positioning member 407 is contacted with the unlocking boss 1012, and the unlocking boss 1012 is correspondingly arranged between the first position and the second position.

The invention also comprises a lock core 90 and a linkage component, wherein the lock core 90 is arranged on the panel 20 and penetrates into the accommodating cavity 101, and the linkage component is arranged at the inner end of the lock core 90 and is opposite to the bolt 30. When the correct key is inserted, lock cylinder 90 may be rotated and, through a linkage assembly, actuate movement of deadbolt 30 to effect unlocking from word line shaft 402.

The linkage assembly includes a pusher block 100 and a driver block 200. The pushing block 100 is in sliding fit with the bottom of the accommodating cavity 101 and can move along the circumferential direction of the accommodating cavity 101, and the pushing block 100 is provided with a second abdicating groove 1001 for abdicating the track spring 80; the driving block 200 is installed at the inner end of the key cylinder 90 and drives the pushing block 100 to move along with the rotation of the key cylinder 90.

The end of the pushing block 100 close to the locking tongue 30 is provided with a first pressing inclined surface 1002, the first pressing inclined surface 1002 faces the locking tongue 30 and inclines towards the bottom of the accommodating cavity 101 to provide a component force for pressing down the locking tongue 30, the locking tongue 30 is provided with a second pressing inclined surface 303 opposite to the first pressing inclined surface 1002, and the first pressing inclined surface 1002 is in sliding fit with the second pressing inclined surface 303.

The character wheel assembly 40 further comprises a secret searching piece 413, the secret searching piece 413 is pivoted and matched on the base 401, one side of the secret searching piece 413 is provided with a plurality of probes 4131 arranged corresponding to the lining 404, the lining 404 is provided with probe grooves 4043 arranged corresponding to the probes 4131, when the lock core 90 rotates, the driving block 200 drives the secret searching piece 413 to rotate and enables the probes 4131 to be matched on the surface of the lining 404, when the character wheel 405 is turned until the password is correct, the probes 4131 can be embedded into the probe grooves 4043, and therefore the character wheel 405 can be turned through key matching to search the set password.

The present invention also includes a base plate 300 and a locking member (not shown). The locking end of the knob 10 is provided with a rotating shaft 102, the bottom plate 300 is provided with a shaft hole 3001, the rotating shaft 102 penetrates through the shaft hole 3001 and is connected with the locking piece, and the bottom plate 300 is connected with the panel 20. The bottom plate 300 can be used for installing the product on an opening and closing member in an actual application scene, such as a cabinet door.

The panel 20 is provided with at least one connecting post 201, the bottom of the accommodating cavity 101 is provided with an arc hole 1013, the connecting post 201 is matched in the accommodating cavity 101 and penetrates through the arc hole 1013, the arc hole 1013 gives way for the circular motion of the connecting post 201 when the panel 20 and the knob 10 rotate relatively, and the top end of the connecting post 201 is connected with the bottom plate 300. The arc length of the arc shaped hole 1013 determines the rotatable angle between the panel 20 and the knob 10. In this embodiment, the top end of the connecting column 201 is fixed to the bottom plate 300 by screws.

The panel 20 is provided with a mark point 202 corresponding to the third position, and the knob 10 is provided with an indication point 103 indicating the current rotation position, so that when the indication point 103 is aligned with the mark point 202, the user can conveniently and quickly find the third position for manually setting the password.

The functions that can be achieved by the present invention are explained below by structural changes of the present invention.

Initial state: referring to fig. 9 to 13, in an initial state (i.e. a locked state set in a conventional case) of the present invention, generally, due to an automatic character wheel resetting function (explained with reference to the following function) of the present invention or a password scrambled manually by a user, the password is not correct, and then the first protrusion 4021 of the character wheel shaft 402 and the first slot 4041 of the bushing 404 are not in a straight line, and the character wheel shaft 402 cannot extend and retract (the character wheel shaft 402 is always in an extended state under the action of the character wheel shaft spring 409), so that when the knob 10 rotates, the character wheel shaft 402 is clamped at the position of the locking tongue 30, and a product is in a locked state. Meanwhile, the protective frame 408 cannot axially move due to the limitation of the upper rail 60, so that the bushing 404 and the character wheel 405 are kept relatively static and can rotate relative to the character wheel shaft 402, and the positioning member spring 412 drives the positioning member 407 to rotate so that the clamping jaw 4071 is embedded in the third clamping groove 4052 to limit the rotation of the character wheel 405 due to the mutual attraction of the reset magnet 403 and the character wheel magnet 406, so that a user can stir the character wheel 405 to input a correct password and the character wheel 405 cannot automatically reset to cause input failure when the password is input; the lock cylinder 90 is in a default state without a key inserted and the probe 4131 of the density finder 413 is disengaged from the probe slot 4043 so as not to interfere with the rotation of the bushing 404.

Unlocking: referring to fig. 14 to 15, when the password is correct, the first protrusion 4021 of the character wheel shaft 402 is aligned with the first slot 4041 of the bushing 404, the character wheel shaft 402 can be extended and retracted, when the knob 10 is rotated, the lock tongue 30 presses the character wheel shaft 402 to retract (the first protrusion 4021 penetrates the first slot 4041), so that the end of the character wheel shaft 402 passes over the lock tongue 30, that is, unlocking is realized, and the knob 10 can be rotated within a set angle to realize other functions.

Automatic character wheel resetting: referring to fig. 16 to 18, after the character wheel shaft 402 passes over the locking tongue 30, the protection bracket 408 moves along the upper rail 60 and overcomes the elastic force of the protection bracket spring 410, so as to keep the character wheel 405 coupled with the bushing 404, the axial movement of the character wheel shaft 402 disengages the first locking groove 4041 and the first protrusion 4021, the positioning member 407 is displaced under the action of the unlocking boss 1012, so that the positioning member 407 is disengaged from the character wheel 405, the character wheel 405 rotates under the action of magnetic force, so as to realize automatic character wheel resetting, and then the positioning member 407 disengages from the unlocking boss 1012, so as to reset and clamp the character wheel 405 under the action of the positioning member spring 412.

And manually setting a password: as shown in fig. 19 and 20, when the knob 10 is rotated until the indication point 103 is aligned with the mark point 202, a password can be inputted. After the correct password is input, the knob 10 is rotated to a completely opened state, the protective frame 408 continuously overcomes the elastic force of the protective frame spring 410 under the action of the upper rail 60, the character wheel 405 is kept coupled with the bushing 404, the first clamping groove 4041 is separated from the first protrusion 4021, the lower rail 70 is reset under the action of the rail spring 80, and the user can manually set the password by dialing the character wheel 405. After the password is set, the knob 10 is reversed, so that the character wheel 405 is reset again, namely the upper character wheel is reset; in this process, if the password is not changed before, the character wheel 405 does not operate.

Locking: referring to fig. 21 to 22, after the up-lock character wheel is reset, the knob 10 is continuously rotated, the character wheel shaft 402 presses the latch 30, the latch 30 retracts, and after the character wheel shaft 402 passes through, the latch 30 is reset under the action of a latch spring 50 (not shown in the drawings, see fig. 2) to limit the rotation of the rotation 10, so as to realize locking.

Unlocking by a key: when a correct key is inserted into the lock cylinder 90 and the lock cylinder 90 is rotated, the lock cylinder 90 drives the driving block 200 to rotate, the driving block 200 drives the pushing block 100, the pushing block 100 pushes the bolt 30 to retract, the circumferential limit between the word wheel shaft 402 and the bolt 30 is cancelled, and the unlocking can be realized by rotating the knob 10.

Finding the password by the key: referring to fig. 23 and 24, when the correct key is inserted and the lock cylinder 90 is rotated (usually, in the opposite direction to the rotation of the key lock to facilitate the operation of different functions), the lock cylinder 90 drives the driver block 200 to rotate, the driver block 200 drives the secret finder 413 to rotate and enables the probe 4131 to be fitted on the surface of the bush 404, the probe 4131 cannot be inserted into the probe groove 4043 when the dial 405 is dialed until the password is correct, and the bush 404 (at this time, the bush 404 is coupled with the dial 405 and remains relatively stationary) is limited to rotate, and the dial 405 cannot be dialed again, which means that the correct password is found.

Through the structure, the password replacing function is realized through the axial movement of the character wheel shaft 402 and the protection frame 408, the automatic character wheel resetting is realized through the action change of the positioning piece 407 and the combination of the resetting magnet 403 and the character wheel magnet 406, the password can be messed automatically after the product is unlocked and before the product is locked every time, the risk of password leakage and loss is greatly reduced, and the potential safety hazard caused by the fact that a user forgets to disorder the password during locking is prevented.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.

Claims (10)

1. A novel character wheel coded lock is characterized by comprising:

the knob and the panel can rotate relatively, and the knob is provided with an accommodating cavity for the pivotal matching of the panel;

the lock tongue is arranged on the side wall of the accommodating cavity;

and a print wheel assembly comprising

A base with a movable cavity, which is arranged on the panel and is positioned in the accommodating cavity,

the character wheel shaft penetrates through the movable cavity and can axially move to match with the lock tongue to realize unlocking and locking,

the bushing sleeves the print wheel shaft and can relatively stand or rotate with the print wheel shaft along with the axial movement of the print wheel shaft, the print wheel is arranged corresponding to the bushing and can rotate together with the bushing or relatively rotate,

a reset mechanism for realizing the reset of the print wheel,

a positioning piece which is arranged on the base and is opposite to the character wheel so as to limit the reset of the character wheel,

the protection frame is arranged on the base and can axially move so as to change the matching mode of the bushing and the character wheel;

wherein, the relative rotation of the knob and the panel drives the character wheel shaft and the protective frame to move axially, and the positioning piece limits or unlocks the rotation of the character wheel, and the relative rotation process of the knob and the panel has a first position, a second position and a third position,

when the combination lock is in the first position, the character wheel shaft cannot move and is mutually limited with the lock tongue, the combination lock is unlocked when the password is correct, the bushing can rotate relative to the character wheel shaft, the character wheel can rotate together with the bushing, and the positioning piece limits the reset of the character wheel,

when the positioning piece is at the second position, the bush can rotate relative to the print wheel shaft, the print wheel can rotate together with the bush, and the positioning piece does not limit the reset of the print wheel so as to realize the automatic reset of the print wheel,

when the password setting device is in the third position, the bushing and the character wheel shaft are relatively static, the character wheel can rotate relative to the bushing, and the positioning piece limits the character wheel to reset so as to realize manual password setting.

2. The novel type wheel combination lock of claim 1, wherein:

the resetting mechanism comprises a character wheel magnet and a resetting magnet, the character wheel magnet is arranged opposite to the character wheel, and the resetting magnet is used for attracting the character wheel magnet to reset the character wheel; the character wheel magnets are arranged in pairs, and each character wheel is provided with a pair of character wheel magnets with opposite different poles; the reset magnet is arranged along the axial direction of the character wheel shaft and is arranged on the character wheel shaft.

3. The novel type wheel combination lock of claim 1, wherein:

the periphery of the character wheel shaft is provided with a plurality of first convex blocks, the lining and the first convex blocks correspond one by one, the inner wall of the lining is provided with a first clamping groove which is arranged opposite to the first convex blocks, and the first convex blocks are movably matched in the first clamping groove along with the movement of the character wheel shaft;

a plurality of limiting bulges arranged at equal intervals are arranged on the periphery of the bushing, limiting clamping grooves opposite to the limiting bulges are arranged on the inner wall of the character wheel, and the limiting bulges are movably matched in the limiting clamping grooves;

the side wall of the movable cavity is provided with a character wheel groove corresponding to each character wheel, and the character wheel groove is used for rotation abdication of the character wheel and limits axial movement of the character wheel in the movable cavity; the character wheel assembly further comprises a character wheel shaft spring and a protection frame spring which are arranged at the end part of the character wheel shaft far away from the lock tongue, so that elastic force is respectively provided to realize axial movement of the character wheel shaft and the protection frame; the character wheel assembly further comprises a spring mounting seat, the spring mounting seat is arranged between the end portion, far away from the lock tongue, of the character wheel shaft and the side wall of the containing cavity, and the character wheel shaft spring and the protection frame spring are both mounted on the spring mounting seat.

4. The novel type wheel combination lock of claim 1, wherein:

the first position, the second position and the third position are sequentially arranged, so that the functions of unlocking, automatic character wheel resetting and manual password setting are sequentially realized in the unlocking process in the relative rotation process of the knob and the panel, and the function of automatic character wheel resetting is realized in the locking process.

5. The novel type wheel combination lock of claim 4, wherein:

the spring bolt is arranged between the spring bolt and the bottom of the accommodating cavity, one end of the word wheel shaft is movably matched between two ends of the rotating track, one end, close to the spring bolt, of the rotating track is the first position, and one end, far away from the spring bolt, of the rotating track is the third position.

6. The novel type wheel combination lock of claim 5, wherein:

an unlocking inclined plane and a locking inclined plane are respectively arranged on two sides of the lock tongue; the unlocking inclined surface faces to the unlocking direction of the word wheel shaft, so that the lock tongue provides component force for axially moving the word wheel shaft along with the rotation of the knob; the upper locking inclined surface faces to the locking direction of the word wheel shaft, so that the word wheel shaft provides component force for enabling the lock tongue to descend along with the rotation of the knob.

7. The novel type wheel combination lock of claim 5, wherein:

the upper rail and the lower rail are arranged oppositely up and down to form the rotating rail; a first abdicating groove for the axial moving abdicating of the protection frame is arranged on the inner side of the upper rail, a sliding connection inclined plane is connected between the first abdicating groove and the inner side of the upper rail, and the sliding connection inclined plane is arranged between the second position and the third position; the lower rail is opposite to the first abdicating groove; the rail spring is arranged between the lower rail and the bottom of the accommodating cavity; the lower rail is close to one end of the lock tongue is provided with a pressing inclined plane, the axial movement of the protection frame abuts against the pressing inclined plane to enable the lower rail to press down the rail spring, and therefore the protection frame is allowed to yield.

8. The novel type wheel combination lock of claim 1, wherein:

the character wheel assembly further comprises a positioning piece spring; the positioning piece is pivoted and matched on the base, one side of the positioning piece is provided with a clamping jaw which is arranged corresponding to the character wheel, a third clamping groove is formed between every two adjacent characters of the character wheel, and the clamping jaw and the third clamping groove are arranged oppositely; the positioning piece spring is arranged between the other side of the positioning piece and the base to provide elasticity to drive the positioning piece to rotate so as to enable the clamping jaw to be embedded in the third clamping groove; the bottom in holding chamber is provided with the unblock boss, the unblock boss with the opposite side of setting element sets up relatively, the setting element along with the rotation of knob with unblock boss clearance fit, the setting element with when unblock boss contact the jack catch breaks away from the third draw-in groove, the unblock boss corresponds the setting and is in between primary importance and the second place.

9. The novel type wheel combination lock of claim 1, wherein:

the lock core is arranged on the panel and penetrates into the accommodating cavity, and the linkage assembly is arranged at the inner end of the lock core and opposite to the bolt; when a correct key is inserted, the lock cylinder can rotate and drive the lock tongue to move through the linkage assembly so as to realize unlocking with the word wheel shaft; the linkage assembly comprises a pushing block and a driving block, the pushing block is in sliding fit with the bottom of the accommodating cavity and can move along the circumferential direction of the accommodating cavity, and a second abdicating groove for abdicating the track spring is formed in the pushing block; the driving block is arranged at the inner end of the lock cylinder and drives the pushing block to move along with the rotation of the lock cylinder;

the character wheel assembly further comprises a density searching piece, the density searching piece is pivoted and matched on the base, one side of the density searching piece is provided with a plurality of probes correspondingly arranged with the lining, and the lining is provided with probe grooves correspondingly arranged with the probes; when the lock core rotates, the driving block drives the secret searching piece to rotate, the probe is matched with the surface of the lining, and when the password is correct, the probe is inserted into the probe groove.

10. The novel type wheel combination lock of claim 1, wherein:

and the panel is provided with a marking point which is correspondingly arranged with the third position, and the knob is provided with an indicating point for indicating the current rotating position.

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