CN113417514A

CN113417514A - Mechanical coded lock capable of automatically searching code

Info

Publication number: CN113417514A
Application number: CN202110811689.6A
Authority: CN
Inventors: 徐国强
Original assignee: Ningbo Thumb Locks Co ltd
Current assignee: Ningbo Thumb Locks Co ltd
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2021-09-21

Abstract

The invention relates to a mechanical coded lock capable of automatically searching codes, which comprises a shell, wherein a lock cylinder assembly capable of rotating relative to the shell is arranged on the shell in a penetrating way, and one end of the lock cylinder assembly is connected with a locking plate; a code searching mechanism is arranged between the lock core assembly and the code wheel assembly, and when a code is forgotten, the lock core assembly drives the code searching mechanism to perform code searching unlocking; the code searching mechanism comprises a driving piece, a code searching key and a code wheel, wherein the driving piece, the code searching key and the code wheel are connected to the lock cylinder component; the driving piece pushes the code searching key when moving, and a pawl on the code searching key is in contact with the code wheel when rotating and rotates the code wheel to a correct code point, so that automatic code searching is realized. The invention has the beneficial effects that: 1. adopt new mechanical structure, utilize the principle of Archimedes spiral to realize seeking sign indicating number automatically, can seek sign indicating number and show accurate figure automatically under the indiscriminate condition of character wheel group, easy operation, the person of facilitating the use forgets to seek sign indicating number behind the password under any circumstance, the practicality is strong.

Description

Mechanical coded lock capable of automatically searching code

Technical Field

The invention relates to a coded lock.

Background

In order to ensure the personal privacy and the personal property safety, people generally lock a suitcase or a cabinet in a home, the conventional lock is generally divided into two types, one type is a traditional key lock and is unlocked by matching a key with a lock cylinder, the other type is a coded lock, the coded lock is generally mainly a dial wheel coded lock, and the coded lock is also provided with a digital key coded lock.

The existing dial wheel coded lock can open a lockset when a preset code is dialed, and a box door or a box door is opened. However, when the combination lock is used on some cabinets which are not opened frequently, the combination is easy to forget or remember the wrong combination, and the unlocking cannot be carried out smoothly at the moment, so that certain inconvenience is brought to users.

The existing coded lock is usually provided with a code searching structure, but the existing code searching structure is usually used for searching codes under the condition of unlocking, and the codes cannot be searched under the lock closing state, so that the code searching of the coded lock has certain limitation.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a mechanical coded lock capable of automatically searching codes, which can automatically search codes and open the coded lock when the lock is closed or unlocked.

A mechanical coded lock capable of automatically searching codes comprises a shell, wherein a lock cylinder assembly capable of rotating relative to the shell is arranged on the shell in a penetrating mode, and one end of the lock cylinder assembly is connected with a locking plate; a code searching mechanism is arranged between the lock core assembly and the code wheel assembly, and when a code is forgotten, the lock core assembly drives the code searching mechanism to perform code searching unlocking; the method is characterized in that: the code searching mechanism comprises a driving piece, a code searching key and a code wheel; in a code searching state, the driving piece can move back and forth to push the code searching key, a pawl on the code searching key is close to and in contact with the code aligning wheel, and when the pawl is in contact with an error code point on the code aligning wheel, the pawl applies pressure to the error code point to push the code aligning wheel to rotate; when the pawl contacts the correct code point on the code wheel, the pawl is matched with the contact position of the correct code point, the pawl and the code wheel are balanced in stress, the code wheel does not rotate any more, and automatic code searching is realized.

Through adopting above-mentioned technical scheme, regardless of dial the homoenergetic under the state of indiscriminate character wheel after trick lock subassembly closed condition still opens and seek sign indicating number and with the character wheel demonstration in exact position, realize seeking sign indicating number at any time, the practicality is strong and convenient operation.

The technical scheme is further set as follows: the code searching key comprises a push block and a code searching rod which are linked by a lever; a lever support plate is arranged on the push block, the power end of the lever support plate is positioned on the push block, and the resistance end is connected to the code searching rod; a fulcrum groove is formed in the power end, close to the resistance end; an abutting inclined plane is arranged at one end, facing the lock tongue, of the push block; the pawl is positioned on the code searching rod.

The technical scheme is further set as follows: the code wheel is an Archimedes spiral cam.

By adopting the technical scheme, the fixed point is searched by utilizing the Archimedes spiral principle, so that accurate code searching is realized, and the condition of code searching error or code searching failure of a code searching mechanism is avoided.

The technical scheme is further set as follows: the lock core assembly comprises a lock core and a knob, a lock sleeve is sleeved outside the lock core, and a slot capable of accommodating the driving piece to enter and exit is formed in the lock sleeve; the driving piece is connected to the lock cylinder and is driven by the lock cylinder to move in the lock sleeve.

Through adopting above-mentioned technical scheme, set up the lock core cover and connect with the trick lock subassembly, be used for the lock core subassembly alone to seek sign indicating number, avoided the condition that the lock core subassembly damaged influence was unblanked.

The technical scheme is further set as follows: the tail end of the lock cylinder is provided with an eccentric shaft, the driving part is provided with a sliding chute for accommodating the eccentric shaft, and the sliding chute extends to the end face of the driving part; when the lock core rotates, the deviation lock tongue slides in the lock sleeve under the driving of the eccentric shaft.

The technical scheme is further set as follows: the lock sleeve and the knob are fixed and rotate together with the knob; the lock cylinder can rotate relative to the knob or rotate along with the knob; and a pushing inclined plane is arranged at one end of the driving piece, which extends out of the lock sleeve.

The technical scheme is further set as follows: the code wheel assembly comprises a lock rod assembly provided with a plurality of character wheel cores, the character wheel cores are sleeved with character wheels capable of driving the character wheel cores to rotate or rotate relatively, and the code wheels are located on the character wheel cores.

The technical scheme is further set as follows: the character wheel core is provided with a limiting protrusion on the circumferential surface and used for being connected to the end surface of the code wheel, and the character wheel is connected with the limiting protrusion in a clamped mode.

The technical scheme is further set as follows: the inner ring of the character wheel is provided with a clamping groove, the position of each clamping groove corresponds to the number on the outer ring of the character wheel, and the positioning protrusion is fixedly connected with the clamping groove in a clamping mode.

The technical scheme is further set as follows: the code wheel assembly is also provided with a gear lever with a gear claw, one end of the gear lever penetrates through the fulcrum groove of the code searching key, and the other end of the gear lever is rotatably arranged on a rotating shaft frame in the shell; and a return spring is arranged below the gear lever and jacks up the gear claw to be in contact with the end face of the character wheel.

Through adopting above-mentioned technical scheme, wear to establish the one end of gear pole in the fulcrum groove as the fulcrum, when the ejector pad on seeking the sign indicating number key is pushed down by the driving piece, under reset spring's effect, upwards pushes up the gear pole, and the gear pole slides to the fulcrum groove and goes up the one end that is close to the resistance end, becomes the fulcrum of lever.

The invention has the beneficial effects that:

1. the novel mechanical structure is adopted, the automatic code searching is realized by utilizing the Archimedes spiral principle, the automatic code searching can be carried out under the condition that the character wheel is disordered, the accurate number can be displayed, the operation is simple, a user can conveniently search the code after forgetting the password under any condition, and the practicability is high;

2. the lock cylinder is independently used for code searching and is not used for unlocking, and the condition that the lock cylinder cannot be unlocked due to damage is avoided.

Drawings

Fig. 1 is an exploded view of the present invention.

FIG. 2 is a schematic diagram of a code-searching key.

Fig. 3 is a schematic view of a connection structure of the lock cylinder and the driving member.

Fig. 4 is a schematic structural view of the self-wheel core.

Fig. 5 is a schematic diagram of a position structure of the code searching mechanism in a code searching state.

Fig. 6 is a schematic view of the overall structure of the present invention.

The attached drawings are marked with: 1. a housing; 2. a locking plate; 3. a drive member; 4. a code searching key; 401. a push block; 402. a code searching rod; 403. a lever support plate; 404. a fulcrum groove; 405. a pawl; a. abutting against the inclined plane; 5. a knob; 6. a lock cylinder; 7. a lock sleeve; 701. grooving; 601. an eccentric shaft; 301. a chute; b. pushing the inclined plane; 8. a character wheel core; 9. a locking bar assembly; 10. a print wheel; 801. aligning a code wheel; 802. a limiting protrusion; 1001. a card slot; 11. a gear lever; 1101. a gear pawl; 12. a return spring; c. correct code points; 13. a key.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

As shown in fig. 1 and 6, the mechanical combination lock capable of automatically searching codes provided by the invention comprises a shell 1, a lock cylinder assembly capable of rotating relative to the shell 1 is arranged on the shell 1 in a penetrating manner, and one end of the lock cylinder assembly is connected with a lock plate 2. Still be equipped with the password wheel subassembly in the casing 1, be equipped with between lock core subassembly and the password wheel subassembly and seek sign indicating number mechanism. When forgetting the password, use key 13 to rotate the lock core subassembly, the lock core subassembly drives and seeks the sign indicating number mechanism and operate, seeks the sign indicating number automatically and unblanks on password wheel subassembly.

As shown in fig. 1, the plug assembly includes a knob 5 partially exposed outside the housing 1, a plug 6 is connected to the inside of the knob 5, and a lock sleeve 7 is sleeved outside the plug 6. The knob 5 is fixedly connected with the lock sleeve 7, a notch which is consistent with a key 13 groove on the lock cylinder 6 is arranged on the knob 5, and the lock sleeve 7 is clamped with the lock cylinder 6 through a blade in the lock cylinder 6. The locking plate 2 is attached to the lock sleeve 7. When the key 13 is not used for unlocking, the knob 5 is rotated, the lock cylinder 6 rotates along with the lock sleeve 7, and the locking plate 2 rotates to realize unlocking. The key 13 is inserted to rotate the lock core 6, the lock core 6 rotates relative to the lock sleeve 7, and the lock plate 2 does not move.

In this embodiment, be equipped with locking groove and code conversion groove on the global of lock tube 7, when locking lever assembly 9 card on the trick lock subassembly goes into the locking inslot, lock tube 7 can't rotate, also can't drive locking plate 2 and rotate the unblock. When the locking rod assembly 9 is clamped into the code changing groove, the code changing can be carried out on the coded lock assembly.

The code searching mechanism comprises a driving piece 3 connected to the lock cylinder 6 assembly, a code searching key 4 and a code wheel 801. As shown in fig. 3, an eccentric shaft 601 is provided on the end surface of the key cylinder 6, a slide groove 301 is provided on the driver 3, and the eccentric shaft 601 is slidably provided in the slide groove 301. The lock case is provided with a slot 701 for allowing the driving member 3 to pass through. When the key 13 is used to rotate the lock cylinder 6, the eccentric shaft 601 drives the driving member 3 to eccentrically rotate, and the driving member 3 is limited in the slot 701 of the lock sleeve 7, so that the driving member moves in and out of the slot 701. When the driving piece 3 extends out of the lock sleeve 7, the code searching key 4 is pushed to move, so that code searching can be carried out on the code wheel assembly.

As shown in fig. 2 and 5, the code searching key 4 includes a push block 401 and a code searching rod 402 which are linked by a lever, a lever support plate 403 is arranged on the push block 401, a power end of the lever support plate 403 is positioned on the push block 401, and a resistance end is positioned on the code searching rod 402. A fulcrum slot 404 is provided on the power end adjacent to the resistance end. Meanwhile, one end of the shift lever 11 is inserted into the fulcrum groove 404 as a fulcrum. The code searching rod 402 is provided with a pawl 405.

In this embodiment, the fulcrum groove 404 is a straight groove.

As shown in fig. 5, a pushing inclined surface b is provided at one end of the driving member 3 extending out of the lock sleeve 7, and an abutting inclined surface a is provided at a position of the pushing block 401 contacting with the pushing inclined surface b. When driving piece 3 stretches out to the outside of lock sleeve 7 and promotes ejector pad 401 under the effect of lock core 6, promote inclined plane b and butt inclined plane a and contact and exert pressure, ejector pad 401 moves down, and shift lever 11 moves the one end that is close to the resistance end on fulcrum groove 404 and forms the fulcrum in the removal process, under the leverage, the resistance end anticlockwise rotation on the lever extension board 403, drive and seek a yard pole 402 and carry out anticlockwise rotation, make and seek a yard 405 on the yard pole 402 and be close to the password wheel subassembly and can seek a yard on the password wheel subassembly.

The password wheel assembly comprises a lock rod assembly 9 provided with a plurality of character wheel cores 8, character wheels 10 capable of driving the character wheel cores 8 to rotate or rotate relatively are sleeved on the character wheel cores 8, and the code wheels 801 are arranged on the character wheel cores 8 and rotate along with the character wheels 10 and the cores 8.

As shown in fig. 4, a limiting protrusion 802 is disposed on the circumferential surface of the character wheel core 8, the limiting protrusion 802 is connected to the end surface of the code wheel 801, a slot 1001 is disposed on the inner ring wall of the character wheel 10, and the position of each slot 1001 corresponds to the number on the outer ring of the character wheel 10. The positioning protrusion is inserted into the engaging groove 1001 to engage and fix the character wheel core 8 and the character wheel 10, and the code wheel 801 and the character wheel 10 are also fixed. When the print wheel 10 is dialed, the code wheel 801 rotates with it, and vice versa.

In this embodiment, the encoder wheel 801 is an archimedes spiral cam. The fixed point on the archimedes' spiral is the correct code point c.

In the code searching process of the code searching rod 402, the pawl 405 is close to the code wheel assembly and contacts the code wheel 801, the pawl 405 applies pressure to the code wheel 801, the code wheel 801 is unevenly stressed to rotate according to the Archimedes spiral principle, the character wheel 10 is driven to rotate until the character wheel rotates to a correct position, the pawl 405 contacts a correct code point c, the stress between the pawl 405 and the correct code point c is even, the pawl 405 applies pressure and cannot push the code wheel 801 to rotate, and the code wheel 801 stops rotating, namely code searching is completed.

In this embodiment, the shift lever 11 is disposed on the other side of the index lever 402, the shift pawls 1101 are arranged on the shift lever 11, and the return spring 12 is disposed below the shift pawls 1101. When one end of the shift lever 11 is inserted into the fulcrum groove 404 as a fulcrum and is pressed down together with the push block 401 by the driving member 3, the return spring 12 pushes up the shift lever 11 to stabilize it.

In this embodiment, the structure and the using method of the locking rod assembly are the same as those of the locking rod assembly on the password wheel in the prior art, and are not described herein again.

When the mechanical coded lock is used, the mechanical coded lock stirs the character wheel to rotate to a correct number under the initial closing state, the coded lock is opened, the lock rod component can move, and the knob is rotated to unlock.

When needing to close the lock, the digital display on the password wheel is correct figure, rotates the knob, makes the lock sleeve rotate, when locking lever assembly card goes into the locking inslot, dials indiscriminate password, and locking lever assembly is locked, can't break away from the locking groove, and the lock sleeve can't rotate, promptly, can not unblank.

When code changing is needed, the character wheel is stirred to input correct numbers, then the knob is rotated, the lock sleeve rotates, the lock rod assembly is clamped into the code changing groove to change the codes, the specific code changing principle is consistent with the code changing principle of the code wheel in the prior art, and details are not repeated here.

When the mechanical coded lock is in a locked state and a user forgets a code, a key is inserted, the lock cylinder is rotated, the blades in the lock cylinder retract, and the lock cylinder can rotate relative to the lock sleeve. The lock core drives the driving piece to move in the rotating process. The driving piece stretches out the lock sleeve outside and promotes to seek the sign indicating number key and seek the sign indicating number, seeks the pawl on the sign indicating number key and be close to and contact to the sign indicating number wheel, rotates the sign indicating number wheel, until rotating the correct position to the sign indicating number wheel, the pawl no longer rotates the sign indicating number wheel with the contact back of correct sign indicating number point, the figure that the character wheel shows this moment is correct password, seeks the sign indicating number and accomplishes simultaneously the trick lock subassembly and open, rotate the knob and can unblank.

When seeking sign indicating number and accomplishing the back and reseing, through the rotatory lock core subassembly of key, in retrieving the driving piece the lock cover, reset spring upwards pushes up the gear pole, because the ejector pad does not receive the effect of driving piece, in along with shifting up of gear pole driven rebound, the lever extension board rotates round resistance end, promptly, seeks the sign indicating number pole and is anticlockwise rotation, seeks the pawl on the sign indicating number pole and keeps away from the code wheel.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A mechanical coded lock capable of automatically searching codes comprises a shell (1), wherein a lock cylinder assembly capable of rotating relative to the shell (1) is arranged on the shell in a penetrating mode, and one end of the lock cylinder assembly is connected with a lock plate (2); a code searching mechanism is arranged between the lock core assembly and the code wheel assembly, and when a code is forgotten, the lock core assembly drives the code searching mechanism to perform code searching unlocking; the method is characterized in that: the code searching mechanism comprises a driving piece (3), a code searching key (4) and a code wheel (801); in a code searching state, the driving piece (3) pushes the code searching key (4) in the back and forth movement process, a pawl (405) on the code searching key (4) is close to and contacts with the code aligning wheel (801), and when the pawl (405) contacts with a code error point on the code aligning wheel (801), the pawl (405) applies pressure to the code error point to push the code aligning wheel (801) to rotate; when the pawl (405) contacts the correct code point (c) on the code wheel (801), the contact position of the pawl (405) and the correct code point (c) is matched, the force between the pawl (405) and the code wheel (801) is balanced, the code wheel (801) does not rotate any more, and automatic code searching is realized.

2. The mechanical coded lock capable of automatically searching for the code according to claim 1, wherein the code searching key (4) comprises a lever-linked push block (401) and a code searching rod (402); a lever support plate (403) is arranged on the push block (401), the power end of the lever support plate (403) is positioned on the push block (401), and the resistance end is connected to the code searching rod (402); a fulcrum groove (404) is arranged on the power end and close to the resistance end; an abutting inclined plane (a) is arranged on one end, facing the lock tongue, of the push block (401); the pawl (405) is located on the code searching rod (402).

3. The mechanical coded lock capable of automatically searching codes according to claim 2, wherein: the code wheel pair (801) is an Archimedes spiral cam.

4. The mechanical coded lock capable of automatically searching codes according to claim 1, wherein: the lock core assembly comprises a lock core (6) and a knob (5), a lock sleeve (7) is sleeved outside the lock core (6), and a slot (701) capable of accommodating the driving piece (3) to enter and exit is formed in the lock sleeve (7); the driving piece (3) is connected to the lock cylinder (6) and is driven by the lock cylinder (6) to move in the lock sleeve (7).

5. The mechanical coded lock capable of automatically searching codes according to claim 4, wherein: the tail end of the lock cylinder (6) is provided with an eccentric shaft (601), the driving part (3) is provided with a sliding groove (301) for accommodating the eccentric shaft (601), and the sliding groove (301) extends to the end face of the driving part (3); when the lock cylinder (6) rotates, the deviation bolt slides in the lock sleeve (7) under the driving of the eccentric shaft (601).

6. The mechanical coded lock capable of automatically searching codes according to claim 5, wherein: the lock sleeve (7) and the knob (5) are fixed and rotate together with the knob (5); the lock cylinder (6) can rotate relative to the knob (5) or rotate along with the knob (5); and a pushing inclined plane (b) is arranged at one end of the driving piece (3) extending out of the lock sleeve (7).

7. The mechanical coded lock capable of automatically searching codes according to claim 1, wherein: the password wheel assembly comprises a lock rod assembly (9) provided with a plurality of character wheel cores (8), character wheels (10) capable of driving the character wheel cores (8) to rotate or rotate relatively are sleeved on the character wheel cores (8), and the code wheels (801) are located on the character wheel cores (8).

8. The mechanical coded lock capable of automatically searching codes according to claim 7, wherein: be equipped with spacing protruding (802) on the global of character wheel core (8) for link up to the terminal surface to code wheel (801), character wheel (10) with spacing protruding (802) joint.

9. The mechanical coded lock capable of automatically searching codes according to claim 8, wherein: the inner ring of the character wheel (10) is provided with a clamping groove (1001), the position of each clamping groove (1001) corresponds to the number on the outer ring of the character wheel (10), and the positioning protrusion is connected and fixed with the clamping grooves (1001).

10. The mechanical combination lock capable of automatically searching codes according to claim 9, wherein: the code wheel assembly is also provided with a gear lever (11) with a gear claw (1101), one end of the gear lever (11) penetrates through a fulcrum groove (404) of the code searching key (4), and the other end of the gear lever is rotatably arranged on a rotating shaft frame in the shell (1); and a return spring (12) is arranged below the gear lever (11), and the return spring (12) jacks up the gear claw (1101) to be in contact with the end face of the character wheel (10).