CN216277376U

CN216277376U - Two-stage cipher mechanical lock device

Info

Publication number: CN216277376U
Application number: CN202121443156.9U
Authority: CN
Inventors: 刘湘元
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2022-04-12
Anticipated expiration: 2031-06-28

Abstract

The utility model provides a two-stage mechanical password lock device, which comprises a base plate, a first-stage lock body and a second-stage lock body, wherein the first-stage lock body and the second-stage lock body are respectively arranged on the front end surface and the rear end surface of the base plate; when the lock is unlocked, the secret key is rotated, and the second unlocking part is pressed down to unlock the secondary lock body. The utility model relates to a two-stage password mechanical lock device, which can be used for opening a door only under the condition of simultaneously unlocking a primary lock body and a secondary lock body, wherein a mechanism for preventing an external unlocking tool from entering is arranged on the surface of the primary lock body, and a stop column, a stop sheet and the like are arranged at the unlocking position of the secondary lock body, so that the external unlocking tool can be blocked, the mechanical lock device can be effectively prevented from being technically unlocked, and the safety protection grade is improved.

Description

Two-stage cipher mechanical lock device

Technical Field

The utility model relates to the technical field of mechanical locks, in particular to a two-stage password mechanical lock device.

Background

The current mechanical password anti-theft lock cylinder is a single-stage lock cylinder, and a key is directly opened, so that the technical opening difficulty is increased, although some mechanisms for preventing the technical opening are structurally increased, such as: calabash marble, anti-insertion marble, 2-segment lock core, multi-row marble, password sheet arrangement, various special-shaped keys and the like. However, the above measures still do not completely achieve the function of preventing technical opening, only increase a little opening difficulty, and have unlocking skill slightly, and the person can easily open by means of special tools only by slightly practicing. Or poor mechanical reliability, difficult use, difficult mass production, and difficult process implementation. Therefore, the monopole code mechanical lock cylinder can not break through the defect of being opened technically, and the standard of the highest-grade B-grade lock cylinder is only a lower standard that the lock cylinder can not be opened technically within 5 minutes at present. The lock core opening standard is as follows: the technical unlocking prevention of the B-level mechanical anti-theft lock is not more than 5 minutes, and the A-level mechanical anti-theft lock is not more than 1 minute. The high-grade mechanical anti-theft lock sold on the market at present does not have the safety and confidentiality protection capability for the anticipatory criminal theft and the technical skill unlocking personnel.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to provide a two-stage password mechanical lock device to solve the problems that a mechanical lock in the prior art is low in safety and is easy to open by a person with unlocking skills.

(II) technical scheme

In order to solve the technical problems, the utility model provides a two-stage mechanical coded lock device which comprises a base plate, a first-stage lock body and a second-stage lock body, wherein the first-stage lock body and the second-stage lock body are respectively arranged on the front end surface and the rear end surface of the base plate; the second unlocking part is of a flag-shaped structure, a cross flag-shaped key hole is formed in the primary lock body, so that a second unlocking part on the secret key flag-shaped structure can penetrate through the primary lock body, the primary lock body is matched with the first unlocking part in a rotating and unlocking mode, the secondary lock body is matched with the second unlocking part in a pressing and unlocking mode, and the primary lock body and the secondary lock body are arranged in a staggered mode; at least three second password marbles are mounted at the upper end of the secondary lock body, and the second unlocking part penetrates through the primary lock body and abuts against the second password marbles; the lock comprises a primary lock body, a secondary lock body and a key, wherein at least three first password marbles are arranged in the primary lock body, first reset springs are arranged at the lower ends of the first password marbles, a first unlocking part on the key is provided with a tooth part corresponding to the first password marbles, a shifting fork is further arranged on the secondary lock body, the key is inserted into the primary lock body during unlocking, the primary lock body is opened after the tooth part is matched with the first password marbles, the key is rotated again, the secondary lock body is unlocked after the second unlocking part presses down the second password marbles, and finally a door handle is rotated to shift the shifting fork to open a door.

Further, the separation blade is installed to the upper end of second grade lock body, the second password marble passes the separation blade works as the fluting part rotation of the lock core cross hole of one-level lock body arrives near second grade lock body core decoding position, the separation blade can shelter from the cross slotted hole of one-level lock body lock core shelters from as much as possible the second password marble department of second grade lock body makes technical opener be difficult to pass through the cross slotted hole of one-level lock body lock core stretches into and contacts the second password marble part of second grade lock body to furthest restricts technical opener and is in activity space in the second grade lock body increases the degree of difficulty for tentative opening.

Further, including the lock core in the second grade lock body, the lower extreme of second password marble is equipped with marble piece and second reset spring, the marble piece with second reset spring passes the lock core, it is equipped with third reset spring still to overlap on the second password marble, second unblock portion pushes down the second password marble and during the marble piece, the second grade lock body is in the unblock state, rotatable this moment the shift fork.

Furthermore, a stop pin and a torsion spring are further installed on the base plate, the stop pin and the torsion spring are arranged on one side of the shifting fork, and the stop pin and the torsion spring are used for automatically returning and positioning the shifting fork, so that the shifting fork cannot rotate when the secondary lock body is locked.

Furthermore, the baffle is arranged on the end face of the primary lock body and can rotate along with the lock cylinder of the primary lock body, so that the outlet port of the flag-shaped inserting hole of the key of the primary lock body is blocked, a technical opening tool cannot enter the interior of the lock cylinder through the hole, and the part of the lock cylinder of the secondary lock body cannot be contacted.

Further, still be equipped with on the one-level lock body and prevent boring the shell and prevent boring the piece, the bumping post is still installed to the upper end of second grade lock body, the function that blocks with the separation blade is the same, prevent boring the piece with prevent boring the shell and can avoid external instrument to destroy one-level lock body lock core.

(III) advantageous effects

The utility model relates to a two-stage password mechanical lock device, which can rotate a door handle to open a door under the condition of simultaneously unlocking a primary lock body and a secondary lock body, wherein a mechanism for preventing an external unlocking tool from entering is arranged on the surface of the primary lock body, and a blocking piece, a blocking column and the like are arranged at the unlocking position of the secondary lock body, so that the external unlocking tool can be blocked, the mechanical lock device can be effectively prevented from being technically unlocked, the safety protection grade is improved, and secret leakage or property damage caused by easy technical unlocking of the mechanical lock is avoided.

Drawings

FIG. 1 is a front view of a two-stage combination mechanical lock arrangement of the present invention;

FIG. 2 is a side view of a two-stage combination mechanical lock arrangement of the present invention;

fig. 3 is a cross-sectional view of a one-stage lock body and a key of a two-stage mechanical combination lock device according to the present invention;

FIG. 4 is a cross-sectional view of a secondary lock body of a two-step combination mechanical lock device of the present invention;

FIG. 5 is a key front view of a two-stage combination mechanical lock arrangement in accordance with the present invention;

FIG. 6 is a side view of a one-step lock body and key of a two-step combination mechanical lock device according to the present invention;

fig. 7 is a side view of a secondary lock body of a two-step combination mechanical lock device of the present invention.

Wherein: the lock comprises a base plate 1, a first-stage lock body 2, a first coded marble 201, a first reset spring 202, a second-stage lock body 3, a second coded marble 301, a blocking piece 302, a lock cylinder 303, a spring block 304, a second reset spring 305, a third reset spring 306, a secret key 4, a second unlocking part 401, a tooth part 402, a blocking part 403, a shifting fork 5, a snap spring 6, a blocking pin 7, a torsion spring 8, a blocking plate 9, a drilling-proof shell 10, a drilling-proof piece 11 and a blocking column 12.

Detailed Description

Referring to fig. 1 to 7, in order to solve the above technical problems, the present invention provides a two-stage mechanical password lock device, including a base plate 1, and a first-stage lock body 2 and a second-stage lock body 3 respectively mounted on front and rear end faces of the base plate 1, where the two-stage mechanical password lock device is further equipped with a secret key 4, where the front end of the secret key 4 is a first unlocking part, the tail end of the secret key 4 is provided with a second unlocking part 401, and a key hole is formed in the first-stage lock body 2, so that the second unlocking part 401 on the secret key 4 flag structure can pass through the first-stage lock body 2, in this embodiment, the first-stage lock body 2 and the first unlocking part are rotationally unlocked and matched, the second-stage lock body 3 and the second unlocking part 401 are pressed and unlocked and matched, and the first-stage lock body 2 and the second-stage lock body 3 are arranged in a staggered manner; at least three second code marbles 301 are arranged at the upper end of the secondary lock body 3, and the second unlocking part 401 penetrates through the primary lock body 2 and abuts against the second code marbles 301; specifically, at least three first password marbles 201 are arranged in the primary lock body 2, the lower ends of the first password marbles 201 are respectively provided with a first return spring 202, the secret key 4 is provided with a tooth part 402 corresponding to the first password marbles 201, the unlocking shape of the tooth part 402 is protected by a barrier mechanism arranged on the primary lock body 2 and the secondary lock body 3, the key can be effectively kept secret and prevented from being technically unlocked, and the tooth part 402 can be in a cross shape, a straight shape, a circular shape, a T shape or even an L shape; the second unlocking part 401 is flag-shaped, but not limited to plate-shaped, and may be saw-toothed, plate-hole-shaped, even circular, and the like, and the corresponding unlocking part may also be a mechanical structure of various forms, such as saw-toothed, step-shaped, circular hole-shaped, and the like; during unlocking, the secret key 4 is inserted into the first-stage lock body 2, the first-stage lock body 2 is opened after the tooth part 402 is matched with the first password marble 201, the secret key 4 is rotated by 90 degrees anticlockwise at the moment, and the second unlocking part 401 can unlock the second-stage lock body 3 after the second password marble 301 is pressed downwards.

Referring to fig. 4 and 7, a blocking piece 302 is installed at the upper end of the secondary lock body 3, the second coded marble 301 passes through the blocking piece 302, a blocking column 12 is also installed at the upper end of the secondary lock body 3, and the blocking piece 302 and the blocking piece 12 can block the cross slot hole of the primary lock body lock cylinder and simultaneously block the second coded marble 301 area of the key of the secondary lock body lock cylinder as much as possible when the slotted part of the cross hole of the primary lock body lock cylinder rotates to be close to the decoding position of the secondary lock body lock cylinder, so that a technical opener is difficult to pass through the cross slot hole of the primary lock cylinder and extend into the second coded marble 301 part contacting the secondary lock body, the moving space of the technical opener at the second coded marble 301 is limited to the maximum extent, and the difficulty is increased for tentative opening; in this embodiment, including lock core 303 in the second grade lock body 3, the lower extreme of second password marble 301 is equipped with marble 304 and second reset spring 305, wherein marble 304 and second reset spring 305 pass lock core 303, still the cover is equipped with third reset spring 306 on the second password marble 301, under the unblock state, second password marble 301 pushes down marble 304 and second reset spring 305, after the unblock is accomplished, second reset spring drives marble 304 and resets, third reset spring 306 drives second password marble 301 and resets.

Referring to fig. 2, 3 and 5, in this embodiment, a shifting fork 5 is further mounted on the base plate 1, a snap spring 6 is mounted on the shifting fork 5, the shifting fork 5 is connected with a lock cylinder 303 through the snap spring 6, the shifting fork 5 can be rotated to open the door when the lock cylinder 303 is in an unlocked state, a stop pin 7 and a torsion spring 8 are further mounted on the base plate 1, and the stop pin 7 and the torsion spring 8 are arranged on one side of the shifting fork 5 and used for stopping and positioning the shifting fork 5; the baffle 9 is installed to the terminal surface of one-level lock body 2, when the lock core 303 is opened by external instrument, when rotatory one-level lock core, baffle 9 rotates together with one-level lock core, thereby can block the play end drill way of 2 key flag shape patchholes of one-level lock body, make inside technical opener can't get into one-level lock body 2 through this hole, more can't touch the lock core 303 part of second grade lock body 3, in this embodiment, still be equipped with on one-level lock body 2 and prevent boring shell 10 and anti-drilling piece 11 for prevent that external instrument from destroying the lock core of one-level lock body 2.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a two-stage password mechanical lock device, includes base member board (1) and installs respectively one-level lock body (2) and second grade lock body (3) of terminal surface around base member board (1), its characterized in that: the two-stage password lock is further provided with a secret key (4), the front end of the secret key (4) is a first unlocking part, the tail end of the secret key (4) is provided with a second unlocking part (401), the second unlocking part (401) is of a flag-shaped structure, a cross flag-shaped key hole is formed in the first-stage lock body (2), the second unlocking part (401) on the flag-shaped structure of the secret key (4) can penetrate through the first-stage lock body (2), and a circular through hole is formed in the flag-shaped structure of the second unlocking part (401) so as to avoid a blocking column (12) arranged on a second-stage group; the lock comprises a first-stage lock body (2), a first unlocking part, a second-stage lock body (3), a second unlocking part (401), a circular counter bore, a flag-shaped part, unlocking passwords, different depth holes and different positions, wherein the first-stage lock body (2) and the first unlocking part are matched in a rotating and unlocking mode, the second-stage lock body (3) and the second unlocking part are matched in a pressing and unlocking mode, the depth of the circular counter bore of the flag-shaped part is the unlocking password, and password combination differences are formed by combination of the different depth holes and the different positions.

2. A two-stage combination mechanical lock device as claimed in claim 1, wherein: the first-stage lock body (2) and the second-stage lock body (3) are arranged in a staggered mode.

3. A two-stage combination mechanical lock device as claimed in claim 1, wherein: baffle (9) are installed to the terminal surface of one-level lock body (2), after one-level lock body (2) unblock was rotated, baffle (9) blocked the lockhole of one-level lock body (2).

4. A two-stage combination mechanical lock device as claimed in claim 1, wherein: at least three second code marbles (301) are mounted at the upper end of the secondary lock body (3), and the second unlocking part (401) penetrates through the primary lock body (2) and abuts against the second code marbles (301); a blocking piece (302) is installed at the upper end of the secondary lock body (3), the blocking piece (302) can block the cross lock hole of the primary lock body (2) from rotating to the cross hole opening at the position, and a technical opening tool entering the secondary lock body (3) from the outside cannot be in contact with the second password marble (301) easily.

5. A two-stage combination mechanical lock device according to claim 4, wherein: including lock core (303) in the second grade lock body (3), the lower extreme of second password marble (301) is equipped with marble piece (304) and second reset spring (305), marble piece (304) with second reset spring (305) pass lock core (303), still the cover is equipped with third reset spring (306) on second password marble (301).

6. A two-stage combination mechanical lock device as claimed in claim 1, wherein: install at least three first password marble (201) in one-level lock body (2), first reset spring (202) are all installed to the lower extreme of first password marble (201), be equipped with in the first unblock portion of secret key (4) with tooth portion (402) that first password marble (201) correspond, tooth portion height and different position combination form the password combination difference.

7. A two-stage combination mechanical lock device according to claim 5, wherein: a shifting fork (5) and a clamping spring (6) are further mounted on the lock cylinder of the secondary lock body (3), and the clamping spring (6) is connected with the lock cylinder (303); the base plate (1) is further provided with a stop pin (7) and a torsion spring (8), and the stop pin (7) and the torsion spring (8) are arranged on one side of the shifting fork (5).

8. A two-stage combination mechanical lock device as claimed in claim 1, wherein: still be equipped with on one-level lock body (2) and prevent boring shell (10) and prevent boring piece (11), bumping post (12) are still installed to the upper end of second grade lock body (3), set up bumping post (12) and shelter from second password marble (301), make the outside unlocking means who stretches into be difficult to contact second password marble (301).