CN118346125A - Disc type sequential fixed key type mechanical puzzle lock - Google Patents

Abstract

The application discloses a disc type sequentially fixed key-type mechanical coded lock which comprises a lock body 1, a lock cylinder 4 and keys 2 and is characterized in that: all keys 2 are continuously positioned and arranged between the whole area of the inner periphery of the outer cylinder 1-1 of the lock body and the circumferential end face of the inner cylinder 1-2 of the lock body, a locking mechanism consisting of a plurality of groups of balls 8-1, balls 8-1 and springs 9-1 is respectively connected with all keys 2, only the cipher keys 2 with set cipher can be correspondingly connected with a sequential key mechanism at the same time, and a plurality of cipher keys 2 are provided with convex inclined planes 2a which respectively correspond to a poking component connected with the sequential key mechanism; the sequence key mechanism is connected with the sequence locking mechanism. The sequence cipher key can reach 6 bits, the cipher quantity of only 3-4 bits cipher can reach 13,800-303,600, the safety and reliability are realized, the memory point is very few, only 3-4 bits are needed to press the cipher key in sequence, the cipher key is automatically restored, the operation is simple and quick, and the potential safety hazard in operation does not exist. Transcoding can be performed in a variety of ways; meanwhile, the hand feeling of all keys is basically consistent, so that the keys are extremely safe and reliable.

Description

Disc type sequential fixed key type mechanical puzzle lock

Technical Field

The application relates to a disc type sequentially fixed key type mechanical coded lock for burglary-resisting doors, safes (cabinets) and the like.

Background

In the prior art disclosed in the application number 2022111046427, the lock comprises a lock body (the lock body 1 and the barrel 3 of the application), a lock cylinder 4-2, a rotating wheel and a pulling sheet (the key 2 of the application), the original password operation generally comprises a relatively troublesome operation process of selecting a main pulling sheet, rotating pulling sheets, selecting pulling sheets, rotating pulling sheets and unlocking the lock cylinder, rotating pulling sheets to restore the pin to lock the lock cylinder 4-2 after unlocking, even if the lock can be simply operated (because of the open space at the door lock, the original password operation caused by the possible error of touching or frequent operation), the lock cylinder is also locked by at least two pulling sheets, rotating pulling sheets to restore the pin (the ball equivalent to the scheme) after unlocking, if the operation error occurs, the operation of rotating the key to restore the original password is relatively troublesome, and on one hand, compared with the operation of only the key, the operation of rotating the key is time-consuming, the operation of the key is relatively large, people feel more laborious, and the efficiency is obviously lower; the most critical step of the method is to rotate the plectrum to restore the pin to lock the lock core (otherwise, the lock is still in an open state), which is very important for reducing intermediate operation links and eliminating fatal hidden trouble for normally open and closed household entrance guard, especially for old and young members. The technical problem to be solved by the application is to eliminate possible fatal hidden trouble, and provide a mechanical coded lock which is more efficient and simple, has the same key quantity under the condition of only key operation and the same number of keys, can also change the password, and can obtain the same high safety and reliability, and meanwhile, the operation is simpler and faster and can be more applied to a household door lock.

Disclosure of Invention

The application discloses a disc type sequentially fixed key-type mechanical coded lock which comprises a lock body 1, a lock cylinder 4 and keys 2 and is characterized in that: the lock body 1 is formed by a lock body outer cylinder 1-1, a lock body inner cylinder 1-2 and a lock body end skirt 1-3, wherein the lock body inner cylinder 1-2 is cylindrical, a grid is arranged on a cylindrical surface, the lock body inner cylinder 1-2 is fixedly connected with the lock body outer cylinder 1-1, the lock body end skirt 1-3 is annular and is axially connected with the lock body inner cylinder 1-2, and the lock body end skirt 1-3 and the lock body inner cylinder are mutually and separately arranged, so that the manufacturing and the setting operation are facilitated; the lock cylinder 4 is divided into a lock cylinder 4-1 and a lock cylinder 4-2, and the lock cylinder 4-2 is cylindrical; the lock cylinder 4-1 is in a shaft shape, a lock cylinder lug 4-1b is arranged to be connected with the lock cylinder 4-2 into a whole, the lock cylinder lug 4-1a is arranged on the lock body inner cylinder 1-2 and the lock body end skirt 1-3, the lock cylinder lug 4-1a is in locking connection with the lock body end skirt 1-3 so as to ensure the safety of the lock arrangement, and the lock cylinder lug 4-1a and the lock body end skirt through groove 1-3a can be correspondingly moved out of the lock body end skirt 1-3 to change the password arrangement operation only when the password lock is opened and the lock cylinder 4-1 is rotated; the keys 2 are provided with/and/or shaped grooves and protrusions 2a, only the password keys 2 are provided with protrusion inclined planes 2a, a plurality of keys 2 are continuously positioned and arranged between the inner circumference of the lock body outer cylinder 1-1 and the circumferential end face of the lock body inner cylinder 1-2, each key 2 corresponds to the circumferential end face of the lock body inner cylinder 1-2 and is axially positioned by the grids 1-2a, and the effective and accurate corresponding operation of each key 2, particularly the password keys 2, is ensured; each key 2/shape groove is respectively connected with a locking mechanism, only the cipher key 2 with the cipher setting can be correspondingly connected with a sequential key mechanism at the same time, and the cipher key 2 is provided with a convex inclined plane 2a which is correspondingly connected with the sequential key mechanism respectively, so that the cipher key 2 is sequentially advanced in the same direction; the sequence key mechanism is used for ensuring the sequence key sequence of each set cipher key 2, the sequence locking mechanism is used for ensuring the necessity of sequence selection of each cipher key 2, and under the condition that the number of the cipher keys 2 is fixed, the sequence selection of the cipher keys 2 is the only optimal mode for obtaining the maximum cipher quantity by the minimum cipher operation. The sequential key mechanism is connected with a sequential locking mechanism, the locking mechanism is composed of a marble 8-1, a marble 8-1 and a spring 9-1, and is arranged on the inner cylinder 1-2 and the lock cylinder 4-2 of the lock body and corresponds to each key 2 one by one: only the operation of the code key has the possibility of opening the lock, and the operation of any non-code key (non-code key 2N shaped like the non-code key without the convex slope 2a of fig. 3) must remain locked.

The scheme 1 is that the sequential key mechanism consists of a ring 7, a spring 9-3 and a plurality of groups of poking protrusions 11 of a blocking head 12, wherein the ring 7 is annular; each group of poking convex 11 components consists of poking convex 11, springs 9-4 and a blocking head 12, the poking convex 11 is in a pipe shape corresponding to the ring 7, a pointed bulge 11b with a half cone at the upper part corresponds to the top end of the password key inclined plane 2a, the point of the pointed bulge 11b corresponds to the vertical line at the front end of the password key inclined plane 2a, a mode of cutting into the password key inclined plane with the lowest theoretical error rate is correspondingly adopted, and a convex block 11a is arranged at the lower part; the poking convex 11 is connected with the spring 9-4 in movable series connection with the ring 7, the other end of the poking convex 11 is connected with the blocking head 12 fixed on the ring 7, the other end of the spring 9-4 is connected with the other blocking head 12 fixedly connected with the ring 7, the ring 7 is arranged in an annular groove on the end face of the lock body inner cylinder 1-2, the spring 9-3 is connected in series with a limiting groove c1 on the end face of the lock body inner cylinder 1-2 of the ring 7, and one end of the spring is also connected with the blocking head 12 fixedly connected with the ring 7; the poking convex block 11a is arranged in a groove corresponding to the end face of the inner cylinder 1-2 of the lock body so as to ensure that the poking convex block 11 is always in a vertical holding state.

According to the scheme 1, the sequential locking mechanism consists of a plurality of groups of springs 9-1, springs 8-2, a groove body 5, springs 9-2 and a blocking head 12, wherein the springs 8-1, the springs 8-2 and the springs 9-1 are arranged in the inner cylinder 1-2 of the lock body and the lock cylinder 4-2 and respectively correspond to all keys 2 one by one; the groove body 5 is provided with a pipe shape corresponding to the connecting section of the hollow cavity H of the ring 7, the outer end face of the groove body 5 is provided with a groove 5a corresponding to the marble 8-1, the groove body 5 is connected with the spring 9-2 and movably connected in series on the connecting section of the hollow cavity H of the ring 7, the groove body is arranged in a limit groove c2 corresponding to the marble 8-1 of the inner cylinder 1-2 of the lock body, the other end of the spring 9-2 is connected with the limit groove c2, the other end of the groove body 5 is movably connected and fixed on a blocking head 12 (arranged in a limit groove c3 narrower than the limit groove c 2) of the ring 7, and the blocking head moves with the groove body 5 in the final unlocking stage to open the lock; all parts of the sequence locking mechanism are also arranged in grooves which are adapted to the end face of the inner cylinder 1-2 of the lock body and can move actively. The restoring locking of the springs 9-2 corresponding to the groove bodies 5 in a single row ensures accurate and effective locking, and simultaneously reduces the initial strength of the springs 9-3 so as to weaken the operation handfeel as much as possible.

According to the scheme 1, the sequential locking mechanism can also consist of the marble 8-1, a locking ring 6 and a spring 9-5, wherein each marble 8-1 is provided with an annular groove 8-1a; the locking ring 6 is annular, protrusions 6a which are in one-to-one correspondence with the ball grooves 8-1a are arranged along the periphery of the locking ring 6, and annular grooves are formed in the end face of the inner cylinder 1-2 of the lock body; the spring 9-5 is arranged in a limit groove on the end face of the lock body inner cylinder 1-2, one end of the spring is connected with one end of the limit groove, and the other end of the spring is connected with the other end of the lock ring 6 in the limit groove; the locking ring 6 is also provided with a locking ring lug 6b which is connected with a sequential button mechanism. The locking ring 6a is normally connected with all the marble grooves 8-1a, and only after the password key 2 is accurately operated, the connection with all the marble grooves 8-1a can be disconnected, so that the lock is opened.

The scheme 3 is that the sequential key mechanism can also consist of a ring 7A, a spring 9-3 and a plurality of groups of poking convex 11A components, wherein the ring 7A is annular provided with a plurality of hollow cavities H which are connected, and is movably arranged in an annular groove at the end face of the inner cylinder 1-2 of the lock body; each poking convex 11A component consists of a poking convex 11A and a spring 14, wherein the poking convex 11A is vertical in the middle and is provided with an E shape corresponding to the (above) pointed convex 11b, and the poking convex 11A is connected with the spring 14 and is arranged in a cavity H of the ring 7; the spring 9-3 and the poking lug 11A are connected in series with a limiting groove c1 on the end face (similar to the limiting groove c1 on one end) of the inner cylinder 1-2 of the lock body, one end of the spring is connected with one end of the limiting groove c1, the other end of the spring is fixedly connected with the ring 7A, and the sequence key mechanism is connected with the sequence locking mechanism.

All parts of the sequential key mechanism are respectively arranged in corresponding grooves which are arranged on the end face of the inner cylinder 1-2 of the lock body and can move movably. The poking convex 11 and poking convex 11A components are effective blocking of possible hand feeling tricky detection of the cipher keys by any partition and hierarchy for corresponding technical illegal opening, and the soft connection between the poking convex 11 and poking convex 11A and the springs 9-4 and the springs 14 is characterized in that, especially if the moving direction of the sequential upper cipher key 2 is left, the next cipher key 2 is arranged on the right of the upper cipher key 2, if the right next cipher key 2 is pressed first, the operation (half distance) of the next cipher key 2 is blocked, and the hand feeling generated by hard connection is relieved by the soft connection of the springs 9-4 or the springs 14. Therefore, only the poking convex 11 and poking convex 11A of the first group corresponding to the first password key 2 can be directly and fixedly connected with the ring 7 or the ring 7A, and the soft connection can enable the hand feeling of any password key 2 to be weak to no sense, and simultaneously, the soft connection can enable each password key 2 to be safely and carelessly selected to be arranged at any position; the limit groove c1, the spring 9-3 and the blocking head 12 are matched, so that the ring 7 and the ring 7A can be ensured to sequentially move and restore and position in the sequence operation of the cipher key 2; the key 2 corresponding to the pointed protrusion 11b on each set poking protrusion 11 and poking protrusion 11A is a cipher key 2, and the front and rear distances in the direction of the top end of the corresponding cipher key protrusion inclined plane 2a are half of the running distances of each time, and the different connection distances above the initial positions determine the different sequences of the operation of the cipher keys 2.

According to the scheme 3, the sequential locking mechanism consists of a plurality of groups of springs 9-1, springs 8-2, a groove body 5, springs 9-2 and a blocking head 12, wherein the springs 8-1, the springs 8-2 and the springs 9-1 are arranged in the inner cylinder 1-2 of the lock body and the lock cylinder 4-2 and respectively correspond to all keys 2 one by one; the groove body 5 is provided with a pipe shape corresponding to the connecting section of the hollow cavity H of the ring 7A, the outer end face of the groove body 5 is provided with a groove shape corresponding to the marble 8-1, the groove body 5 is connected with the spring 9-2 movably and serially connected to the connecting section of the hollow cavity H of the ring 7A, the groove body is arranged in a limit groove c2 corresponding to the marble 8-1 of the inner cylinder 1-2 of the lock body, the other end of the spring 9-2 is connected with the limit groove c2, and the other end of the groove body 5 can be connected with a blocking head 12 fixedly connected with the ring 7A.

According to the scheme 4, the sequential locking mechanism can also consist of the marble 8-1, the locking ring 6 and the springs 9-5, wherein each marble 8-1 is provided with an annular groove 8-1a, the locking ring 6 is annular, the periphery of the locking ring 6 is provided with a bulge 6a which corresponds to each marble groove 8-1a one by one, the bulge is arranged in an annular groove on the end face of the inner cylinder 1-2 of the lock body, the springs 9-5 are connected with the locking ring 6 and are arranged in a limit groove on the end face of the inner cylinder 1-2 of the lock body, one end of each spring 9-5 is connected with one end of the limit groove, and the other end of each spring 9-5 is connected with the other end of the limit groove; the locking ring 6 is provided with a bump 6b connected with a sequential key mechanism.

Drawings

FIG. 1 is a sectional view of scheme 1

FIG. 2 is a right side view of FIG. 1

FIG. 3 is an exploded view of the key 2 and sequential key mechanism and sequential locking mechanism of FIG. 1

FIG. 4 is a schematic top view of the sequential locking mechanism of FIG. 3

FIG. 5 is a sectional view of scheme 3

FIG. 6 is a bottom view of the poking boss 11A of FIG. 5 and a spring 14 connection view

FIG. 7 is a schematic view of the ring 7A of FIG. 5

Fig. 8 is an expanded schematic view of the sequential locking mechanism.

Detailed Description

The present application will be described in further detail below with reference to the embodiments of the drawings, and other arrangements may be applied to the prior art and will not be described. As shown in the figure, the mechanical coded lock comprises a lock body 1, a lock cylinder 4 and keys 2, wherein the lock body 1 consists of a lock body outer cylinder 1-1, a lock body inner cylinder 1-2 and a lock body end skirt 1-3, a grid 1-2a is arranged on the cylinder end face of the lock body inner cylinder 1-2 and corresponds to all keys 2, so that each key 2 is ensured to be operated accurately corresponding to a poking boss 11b under the condition of a grid 1-2a rail, simultaneously, the two adjacent keys 2 are not interfered with each other, the cylindrical surface interface with the enlarged diameter at the right end is convenient for more arrangement, the lock body inner cylinder 1-2 is fixedly connected with the lock body outer cylinder 1-1, the lock body end skirt 1-3 is an annular body and is arranged on the end face of the lock, and the periphery is provided with a trapezoid limiting block which ensures the arrangement safety for all the keys 2, and is connected with the lock body inner cylinder 1-2 by a cylinder 21 and a screw 10 to control rotation and prevent release during unlocking; the lock cylinder 4 consists of a lock cylinder 4-1 and a lock cylinder 4-2, the lock cylinder 4-2 is cylindrical, the outer end surface is provided with a shape corresponding to the shape in the lock body inner cylinder 1-2, the lock cylinder 4-1 is in a shaft shape, a lock cylinder lug 4-1b is arranged to be connected with the lock cylinder 4-2 into a whole, a lock cylinder lug 4-1a is also arranged to lock a lock body end skirt 1-3 so as to ensure the setting safety of the lock, and the lock cylinder lug 4-1a can be corresponding to the lock body end skirt through groove 1-3a only when the lock cylinder 4-1 is rotated, and the lock body end skirt 1-3 is moved out to perform the setting operation of the key 2 for changing the password; the keys 2 are respectively and continuously arranged between the grids 1-2a of the inner peripheral whole area of the outer cylinder 1-1 of the lock body and the circumferential end face of the inner cylinder 1-2 of the lock body, each key 2 is provided with a pull-out/shaped groove or a push-in/shaped groove corresponding to the marble 8-1 at the rightmost end, and is respectively provided with a front protrusion 2a and a rear protrusion 2a which are inwards and respectively arranged on the circumferential end face of the inner cylinder 1-2 of the lock body, the grids 1-2a corresponding to the whole-process operation of the inner cylinder 1-2 of the lock body are axially positioned, and the effective and accurate corresponding operation of each key 2, especially the cipher key is ensured; each key 2/shape groove is respectively connected with a marble 8-1 of the locking mechanism, and a convex inclined plane 2a which is only arranged on the password key 2 with the password setting is respectively correspondingly connected with the sequential key mechanism, so that the same-direction relay sequential progression is realized, and the final connection sequential locking mechanism opens the lock; the sequence key mechanism is used for ensuring the key sequence of each set cipher key 2 at different time points, and the sequence locking mechanism is used for ensuring the necessity of accurate sequence operation of each set cipher key 2; the locking mechanism consists of a marble 8-1, a marble 8-1 and a spring 9-1, and is arranged on the inner cylinder 1-2 of the lock body and the lock cylinder 4-2 and corresponds to each key 2 one by one. The locking mechanism is a combination key 2 that ensures that each key 2 must be operated in a proper sequence.

The key 2 is an initial state which is set by taking a poking key as an unlocking corresponding password, and is mainly set more easily by the automatic locking and restoring key 2 after unlocking.

The scheme 1 is that as shown in figures 1 and 3, the sequential key mechanism consists of a ring 7, a spring 9-3 and a plurality of groups of poking convex 11 components of a blocking head 12, wherein the ring 7 is annular with a circular section; each poking convex 11 component consists of a poking convex 11, a spring 9-4 and a blocking head 12, wherein the poking convex 11 is in a circular tube shape corresponding to the ring 7, a pointed convex 11b with a half cone at the upper part corresponds to the top end of a password key convex inclined plane 2a, a convex block 11a is arranged at the lower part, and the circular tube shape of the ring 7 can also be in a circular tube shape with an inner circle and an outer square so as to ensure that the pointed convex 11b of the poking convex 11 does not swing vertically; the poking convex 11 is connected with the spring 9-4 in movable series connection with the ring 7, the other end of the poking convex 11 is connected with the blocking head 12 fixed on the ring 7, and the other end of the spring 9-4 is connected with the other blocking head 12 fixedly connected with the ring 7; the poking convex 11 component corresponds to a key 2 for setting a password, and can set at least 3 groups and at most 6 groups to correspond to 3 or more than 6 password operations according to the security requirement; the ring 7 is arranged in an annular groove at the end face of the lock body inner cylinder 1-2, the spring 9-3 is arranged in series in a limit groove c1 at the end face of the lock body inner cylinder 1-2 of the ring 7, and one end of the spring is also connected with a blocking head 12 fixedly connected with the ring 7; the sequence key mechanism is connected with the sequence locking mechanism. The cooperation of the limit groove c1, the spring 9-3 and the blocking head 12 thereof ensures the accurate movement, positioning and restoration of the ring 7 on the end face operation of the lock body inner cylinder 1-2; when the ring 7 with the opening is arranged, the springs 9-7 are used for connecting the two ends in a proper tightness, so that the adverse effects of extreme expansion caused by heat and contraction caused by cold can be effectively eliminated; the sequence key mechanism is connected with the sequence locking mechanism.

According to the scheme 1, as shown in fig. 1, 3 and 4, the sequential locking mechanism consists of a plurality of groups of springs 9-1, springs 8-2, a groove body 5, springs 9-2 and a blocking head 12, wherein the springs 8-1, the springs 8-2 and the springs 9-1 are arranged on the inner cylinder 1-2 of the lock body and the lock cylinder 4-2 and are respectively in one-to-one correspondence with all keys 2; the groove body 5 is provided with a pipe hole corresponding to the connecting section of the cavity body H of the ring 7, the outer end face is provided with a groove 5a corresponding to the marble 8-1, and the other surface is correspondingly provided with a bump 5b abutting against the key 2 so as to ensure the locking reliability; the groove body 5 is connected with the spring 9-2 in movable series on the connecting section of the ring 7, and is arranged in a limit groove c2 of the corresponding marble 8-1 of the lock body inner cylinder 1-2, the other end of the spring 9-2 is connected with the limit groove c2, and the other end of the groove body 5 can be movably connected and fixed on a blocking head 12 of the ring 7 (arranged in a limit groove c3 narrower than the limit groove c 2). The exact locking position of the spring 9-2, which is pushed to the other end of the limit groove c2 during the restoring locking of the groove body 5, ensures a reliable locking, while also reducing the initial strength of the spring 9-3 to impair the handling as much as possible. The scheme relates to a locking mechanism: the locking mechanism corresponding to the password key 2 is normally locked, and the locking mechanism corresponding to the non-password key 2 is normally unlocked.

Scheme 2. According to scheme 1, as shown in figures 5 and 8, the sequential locking mechanism can also consist of the pins 8-1, a locking ring 6 and springs 9-5, wherein each pin 8-1 is provided with an annular groove 8-1a; the locking ring 6 is in a sheet-like ring shape, protrusions 6a which are in one-to-one correspondence with the ball grooves 8-1a are arranged along the periphery of the locking ring 6, and annular grooves are formed in the end face of the inner cylinder 1-2 of the lock body; the spring 9-5 is arranged in a limit groove on the end face of the lock body inner cylinder 1-2, one end of the spring is connected with one end of the limit groove, and the other end of the spring is connected with the other end of the lock ring 6 in the limit groove; the locking ring 6 is also provided with a bump 6b connected with a sequential key mechanism. The locking ring 6a is normally connected with all the marble grooves 8-1a, and the connection with all the marble grooves 8-1a can be disconnected only after the password is accurately operated, so that the lock is opened. The key 2 is provided with a locking mechanism: if the locking mechanism corresponding to the password key 2 is locked in a normal state, the groove corresponding to the marble 8-1 is used when the locking mechanism corresponding to the non-password key 2 is pulled out, and if the locking mechanism corresponding to the non-password key 2 is opened in a normal state, the non-password key 2 is used when the end face above the groove corresponds to the marble 8-1, and the marble 8-1 corresponding to the groove is locked when the locking mechanism corresponding to the password key 2 is pulled out, namely under a normal state, the marble 8-1 is pressed, and the locking mechanism also comprises the marble 8-1 corresponding to the password key 2. The locking ring 6 with the opening can also be connected with the two ends by the springs 9-7 in a proper tightness, and the adverse effects of overlarge expansion caused by heat and contraction caused by cold are also effectively eliminated.

5, 6 And 7, the sequential key mechanism can also consist of a ring 7A, a spring 9-3 and a plurality of groups of poking convex 11A components, wherein the ring 7A is an annular shape with a plurality of cavity bodies H which are connected, the cavity bodies H are similar to a folded cavity body H, and the ring 7A is movably arranged in an annular groove at the end face of the inner cylinder 1-2 of the lock body; each poking convex 11A component consists of a poking convex 11A and a spring 14, wherein the poking convex 11A is vertical in the middle and provided with an E shape corresponding to the pointed convex 11b, the poking convex 11A is connected with the spring 14, and is arranged on the right side and the left side of a cavity H which is movably attached with the ring 7A; the spring 9-3 is arranged in the limit groove c1 on the end face of the inner cylinder 1-2 of the lock body, one end of the spring is connected with one end of the limit groove c1, the other end of the spring is fixedly connected with the ring 7A, and the sequence key mechanism is connected with the sequence locking mechanism. When the ring 7A with the opening is arranged, the springs 9-7 are used for connecting the two ends with proper tightness, so that the adverse effects of extreme expansion caused by heat and contraction caused by cold can be effectively eliminated.

According to the scheme 3, the sequential locking mechanism is composed of springs 9-1, springs 8-2, a groove body 5 and springs 9-2, and the sequential locking mechanism of the scheme 4 may also be composed of the springs 8-1, a locking ring 6 and springs 9-5, which are the same as the two sequential locking mechanisms according to the scheme 1, so that the description thereof will not be repeated.

In order to further cover possible weak hand feeling of the operation keys 2, an annular sheet 13 with an opening is adopted, annular grooves arranged on the inner cylinder 1-2 of the lock body correspond to all keys 2, and a plurality of springs 9-6 can be uniformly distributed in the grooves to support the annular sheet 13, so that the friction force generated by each key 2 is far greater than possible hand feeling generated by the operation of the password keys 2, and the hand feeling of the operation of each key 2 is almost the same.

Switch lock and operation: each key 2 of the mechanical coded lock is displayed on the end face of the restoring ring 3 by letters or numbers as codes, and block interval marks are adopted as shown in the figure, so that the positions of the keys 2 are easier to quickly identify.

The coded lock is provided with an automatic key restoring mechanism, see fig. 1, 2 and 5, the automatic key restoring mechanism consists of a restoring ring 3, a lock cylinder lug 4-1a, a lever 18, a screw 20, a ring piece 16, a spring 15, a cover 17 and a clamping ring 19, the restoring ring 3 is in a sheet shape, the inner peripheral end face is provided with a plurality of groups of symmetrical lugs 3a, the inner peripheral end face is provided with a groove which is arranged on the corresponding movable circumference (short distance) of the lock body end skirt 1-3, the ring piece 16 is in a sheet shape, the outer periphery is provided with arc-shaped vertical lugs 16a and lugs 16c, the groove which is arranged on the outer peripheral end face of the lock body end skirt 1-3, the right end face of the lug 16c (fig. 1 and 5) is also provided with a lug connecting restoring ring 3, the right end face of the lug 16c can be connected with the groove port of the lock body end skirt 1-3 when the restoring ring 3 is pulled and rotated, the inner periphery is provided with the lug 16b on the same side of the lug 16b on the end skirt 1-3, the end face of the lock body end skirt 1-3 is arranged on the end face of the lock body end skirt 20, the end face is also provided with a lug 20 and the lug 16c is fixedly connected with the lug 16 and the clamping ring 17 and the clamping ring 19 on the lock cylinder end skirt 1-3, the lock cylinder end skirt 1-3 is axially and the lock cylinder end skirt 1-3 is axially connected with the ring end cap 17, and the lock cylinder end skirt 1-3 is positioned on the lock cylinder end-side and the lock cylinder is located on the lock cylinder end skirt 1.

When the coded lock is opened, the coded lock is seen in the figure, to be pulled first (in general, the restoring ring 3 is in a state of pushing the keys 2 back to the restoring state, basically corresponding to all the keys 2 one by one), the restoring ring 3 is rotated in place and then slightly rotated clockwise, so that the ring piece (at least two symmetrical convex blocks 16a are hung and connected with the groove end faces of the lock body end skirts 1-3), at this time, the corresponding operation of the coded lock can be carried out, if the coded is ABC …, the keys 8-2 of the coded press locking mechanism are dialed with the A coded keys 2 of the codes displayed on the end faces of the restoring ring 3, and at the same time, the dialing 11B closest to the top end of the inclined plane 2a of the coded keys A is enabled to be fixedly connected with the ring 7 through the blocking head, namely, all the keys on the keys are firstly dialed in the clockwise direction or the right direction (at this time, the distance that the dialing pointed convex inclined plane 2a is actually driven to move by the dialing pointed convex protrusions 11B, the distance +the shifting convex 11B is the distance/2), at this time, in the process of dialing, the pushing grooves (the coded keys 8-2 of the coded press locking mechanism are the coded keys are the keys, namely the keys 2 are withdrawn from the locking mechanism, namely the corresponding to the corresponding grooves of the keys 5, namely the keys 5 are opened, and the corresponding to the corresponding grooves of the keys 5 are opened, and the corresponding to the keys 5, and the corresponding to the corresponding keys 11B are opened at the same time, and the corresponding positions of the key faces are opened, and the key 11B; in this case, the bump 6b of the ring 7 and 7A is touched (because the distance between the annular grooves 8-1a of the connecting pins is short) by the bump 6, and the last cipher key 2 of the re-dialing is used to push the groove body 5 to move rightwards, so that the pin 8-1 in the locked state corresponding to the groove body 5 is opened in the groove 5a, or all the locking ring protrusions 6a are moved away from the annular grooves 8-1a, but only the corresponding lock of all the cipher keys of the dialing is opened (only the corresponding non-cipher key 2 in the groove corresponding to the pin 8-1 is still opened after the original dialing), so that the cipher lock is completely opened.

After the coded lock is opened, or after the handle is rotated anticlockwise to open the door, the handle is released to rebound, and the lock core lug 4-1a is connected with the upper end of the lever 18, so that the lower end of the lever 18b is driven to move rightwards, the upper end of the lever is contacted with the ring lug 16b, the anticlockwise movement is separated from the groove port of the skirt 1-3 of the lock body, under the action of the spring 15, the symmetrical ring lug 16c pushes the restoring ring 3 to restore all the coded keys 2, and the lock core lug 4-1a at the upper end is positioned on the lever 18.

Password change of the coded lock:

1. The number of the dialing convex 11 components corresponding to the non-password keys in a certain sequence can be increased, and the original non-password key and password key positions of the dialing convex 11 components can be adjusted during the transcoding.

2. For the sequential locking mechanism with the groove body 6, 1-2 cipher keys (when the locking mechanism is opened in the original state) which are the opposite front end characteristic/shape groove (the locking mechanism is opened after operation and has no sequential characteristic) can be directly changed; for the sequential locking mechanism which is a locking ring 6, 1-2 specific (code positions are shown in the specification) locking ring lugs 6a can be reduced during design and manufacture, the non-password key 2 is used as an opening in a normal state when the sequential locking mechanism is not used, the password key 2 is used as a switching state when the password is used, and the normal state is locking.

3, Codes at different positions of the password can be achieved by reserving a plurality of groups of symmetrical mounting holes and simultaneously corresponding to the lock cylinder lugs 4-1a and 4-1b and the lock body end skirt grooves 1-3a, namely changing the original relative positions of the password lock; after the coded lock is opened, the snap ring 19 is moved out, and the lock core protruding block 4-1a can be pulled out corresponding to the lock body end skirt groove 1-3a, so that the key 2 can be changed.

4. The correspondence of the codes may also be blurred by transforming the relative positions of the codes on the end face of the reduction ring 3, so as to achieve a confusing visual and positional relationship.

The above modes may be used alone or in combination of two or more.

Advantageous effects

The number of keys of the door lock used by the home cannot be too large to make it difficult to identify the password key, nor too small to be safe, and an interval of 20-25 may be appropriate. The key quantity of the 5-6 bit cipher of the existing key-type mechanical coded lock is only two hundred, and no security exists at all; the number of cipher bits of the key of the electronic lock is about 8, the number of the memorized bits is too large, the operation is inconvenient, not only electricity is needed, but also the problem of electricity and the problem of poor reliability of related faults often occur. For the coded lock, if 25 keys are set: then

Key quantity of 3-bit sequential cipher=25×24×23=13,800

Key quantity of 4-bit sequential cipher=25×24×23×22=303,600

Key amount of 5-bit sequential cipher=25×24×23×22×21= 6,375,600

Specifically, a 3, 4 or 5, 6 bit password can be used according to the security requirement.

Generally, thousands of key quantities are enough, the key is that the door is opened and closed safely and reliably and is operated quickly, and the comprehensive consideration of fewer memory points is obvious, and the key quantity display can be basically used under normal conditions with 3 sequential passwords, so that the memory and the operation are simple and extremely quick;

in summary, the password lock is used for unlocking the password operation of pressing, turning, pressing and turning, and the operation of turning and restoring the key after unlocking is carried out, so that a certain link is very easy to be misplaced and missed, if the password key is not timely restored, the password key can be exposed outside for a long time, if the password key is simply unlocked, the situation is more dangerous, the password lock can be automatically restored after the door is opened by adding the pulling and turning restoring ring 3 to act when the door is unlocked, namely the password lock can be automatically restored after the door is opened by pulling the key purely in sequence, as in normal unlocking, the possible potential safety hazard caused by the operation of leaking is thoroughly eliminated, if the password memory point of 3-4 bits which can ensure safety is very few, the operation is simple and quick, and the password lock is very critical and important for most people who are applied to families and frequently operate the switch.

The code can be changed by changing the position of any one of the sequence cipher keys, or by directly changing the non-cipher key to the cipher key; meanwhile, the scheme adopts the measure of increasing the friction force of each key, so that the hand feeling of all keys is basically consistent, and the hand feeling which is extremely weak originally is less perceived, thus being extremely safe and reliable.

Claims (7)

1. The utility model provides a mechanical coded lock, includes lock body 1, lock core 4, button 2, its characterized in that: the lock body 1 consists of a lock body outer cylinder 1-1, a lock body inner cylinder 1-2 and a lock body end skirt 1-3, wherein the lock body inner cylinder 1-2 is in a cylinder shape and is fixedly connected with the lock body outer cylinder 1-1, and the lock body end skirt 1-3 is in a ring shape and is connected with the lock body inner cylinder 1-2; the lock cylinder 4 consists of a lock cylinder 4-1 and a lock cylinder 4-2, the lock cylinder 4-1 is in a shaft shape, a lock cylinder lug 4-1a and a lock cylinder lug 4-1b are arranged, the lock cylinder 4-2 is in a cylinder shape, the lock cylinder lug 4-1b and the lock cylinder 4-2 are connected into a whole, the lock cylinder 4-1 is arranged on the lock body inner cylinder 1-2 and the lock body end skirt 1-3, and the lock cylinder lug 4-1a and the lock body end skirt 1-3 are connected; the keys 2 are provided with/and/or a groove and a bulge 2a, only the keys 2 with the password setting are provided with bulge inclined planes 2a, a plurality of keys 2 are continuously positioned and arranged between the whole inner peripheral area of the outer lock cylinder 1-1 and the peripheral end face of the inner lock cylinder 1-2, all the keys 2 are connected with a locking mechanism, the bulge inclined planes 2a of the password keys are correspondingly connected with a sequential key mechanism at the same time, and the sequential key mechanism is connected with the sequential locking mechanism; the locking mechanism consists of a marble 8-1, a marble 8-2 and a spring 9-1, and is arranged on the inner cylinder 1-2 of the lock body and the lock cylinder 4-2 and corresponds to all the keys 2 one by one.

2. The mechanical combination lock of claim 1, wherein: the sequential key mechanism consists of a ring 7, a spring 9-3, a blocking head 12 and a plurality of groups of poking convex 11 components, wherein the ring 7 is annular; each group of poking convex 11 components consists of poking convex 11, a spring 9-4 and a blocking head 12, the poking convex 11 is in a tubular shape corresponding to the ring 7, a pointed convex 11b with a half cone is arranged above the poking convex 11, and a convex block 11a is arranged below the poking convex 11; the poking lug 11 and the spring 9-4 are connected in series with the ring 7, the other end of the poking lug 11 is connected and fixed with a blocking head 12 of the ring 7, and the other end of the spring 9-4 is connected and fixed with the other blocking head 12 of the ring 7; the ring 7 is arranged in an annular groove on the end face of the inner cylinder 1-2 of the lock body, the springs 9-3 are arranged in series in the ring 7, one end of the spring is connected and fixedly connected with the blocking head 12 of the ring 7 in a limiting groove c1 on the end face of the inner cylinder 1-2 of the lock body, and the sequence key mechanism is connected with the sequence locking mechanism.

3. A mechanical combination lock according to claims 1,2, characterized in that: the sequential locking mechanism consists of a spring 9-1, a marble 8-2, a groove body 5, a spring 9-2 and a blocking head 12, wherein the marble 8-1, the marble 8-2 and the spring 9-1 are arranged on the inner cylinder 1-2 of the lock body and the lock cylinder 4-2; the groove body 5 is provided with a pipe shape corresponding to the ring 7, the outer end face of the groove body 5 is provided with a groove 5a corresponding to the marble 8-1, the groove body 5 is connected with the spring 9-2 in series connection with the ring 7 and is arranged in a limit groove c2 of the inner cylinder 1-2 of the lock body corresponding to the marble 8-1, the other end of the spring 9-2 is connected with the limit groove c2, and the other end of the groove body 5 can be movably connected and fixed with a blocking head 12 of the ring 7.

4. A mechanical combination lock according to claims 1,2, characterized in that: the sequential locking mechanism consists of the pins 8-1, a locking ring 6 and springs 9-5, wherein each pin 8-1 is provided with an annular groove 8-1a; the locking ring 6 is annular, protrusions 6a which are in one-to-one correspondence with the ball grooves 8-1a are arranged along the periphery of the locking ring 6, and annular grooves are formed in the end face of the inner cylinder 1-2 of the lock body; the spring 9-5 is arranged in a limit groove on the end face of the inner cylinder 1-2 of the lock body, one end of the spring is connected with one end of the limit groove, and the other end of the spring is connected with the other end of the lock ring 6 in the limit groove. The locking ring 6 is also provided with a bump 6b connected with a sequential key mechanism.

5. The mechanical combination lock of claim 1, wherein: the sequential key mechanism consists of a ring 7A, a spring 9-3 and a plurality of groups of poking convex 11A components, wherein the ring 7A is a connected annular shape provided with a plurality of cavity bodies H, and is movably arranged in an annular groove at the end face of the lock body inner cylinder 1-2; each poking convex 11A component consists of a poking convex 11A and a spring 14, wherein the poking convex 11A is E-shaped, the middle part of the E-shaped poking convex is vertically provided with a pointed bulge, the poking convex 11A is connected with the spring 14 and is arranged in a cavity H of the ring 7A, and the ring 7A is arranged in a groove on the end face of the inner cylinder 1-2 of the lock body; the spring 9-3 is connected with the ring 7A in series, is arranged in the limiting groove c1 on the end face of the lock body inner cylinder 1-2, one end of the spring is connected with one end of the limiting groove c1, the other end of the spring is fixedly connected with the ring 7A, and the sequence key mechanism is connected with the sequence locking mechanism.

6. The mechanical combination lock of claims 1 and 5, wherein: the sequential locking mechanism consists of a plurality of groups of springs 9-1, pins 8-1 and pins 8-2, a groove body 5, the springs 9-2 and a blocking head 12, wherein the pins 8-1, the pins 8-2 and the springs 9-1 are arranged in the inner cylinder 1-2 of the lock body and the lock cylinder 4-2 and respectively correspond to all keys 2 one by one; the groove body 5 is provided with a pipe shape corresponding to the connecting section of the hollow cavity H of the ring 7A, the outer end face of the groove body 5 is provided with a groove 5a corresponding to the marble 8-1, the groove body 5 is connected with the spring 9-2 and movably connected in series on the connecting section of the hollow cavity H of the ring 7A, the groove is arranged in a limit groove c2 corresponding to the marble 8-1 of the inner cylinder 1-2 of the lock body, the other end of the spring 9-2 is connected with the limit groove c2, and the other end of the groove body 5 can be connected with a blocking head 12 of the ring 7A.

7. The mechanical combination lock of claims 1 and 5, wherein: the sequential locking mechanism consists of the pins 8-1, a locking ring 6 and springs 9-5, wherein the pins 8-1 of each group of locking mechanism are provided with annular grooves 8-1a; the locking ring 6 is in a sheet-like ring shape, the periphery of the locking ring 6 is provided with a bulge 6a which corresponds to each marble groove 8-1a one by one, and the bulge is arranged in an annular groove on the end face of the inner cylinder 1-2 of the lock body; the spring 9-5 is arranged in a limit groove on the end face of the inner cylinder 1-2 of the lock body, one end of the spring is connected with one end of the limit groove, and the other end of the spring is connected with the other end of the lock ring 6 in the limit groove. The locking ring 6 is also provided with a bump 6b connected with a sequential key mechanism.