CN112878811A

CN112878811A - Anti-theft mechanical lock

Info

Publication number: CN112878811A
Application number: CN202110053287.4A
Authority: CN
Inventors: 于春伟; 李静
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2021-06-01

Abstract

An anti-theft mechanical lock comprises a shell, a key mechanism, a first lock body mechanism and a second lock body mechanism, wherein a movable tongue is arranged on the shell; the key mechanism is divided into a key sleeve and a key core, under the condition that the key mechanism is not unlocked through the first lock body mechanism, the long plate A cannot move due to the fact that the marble A is clamped in the round hole in the long plate A, and therefore the long strip A cannot move, the key sleeve and the key core cannot be separated, the effect that other people cannot copy the key even if the key is lost is achieved, and safety and confidentiality are greatly improved; the first lock body mechanism is arranged in the shell, realizes the function of unlocking the key mechanism, and is matched with the key mechanism for use, so that the function of unlocking the second lock body mechanism is realized; the second lock body mechanism is arranged in the shell and can control the flexible tongue to stretch out and draw back, so that the door lock is opened and closed.

Description

Anti-theft mechanical lock

Technical Field

The invention relates to the technical field of locks, in particular to an anti-theft mechanical lock.

Background

The anti-theft lock has a close relationship in human life, is an indispensable tool in the ordinary life of people, is related to the safety of each family, unit and public place, and has higher requirements on various performances of the anti-theft lock by the human along with the progress of the times. At present, the traditional anti-theft locks on the market are all locked by the spring action singly, thieves can easily unlock the locks by using a special universal key easily, and the locks which can effectively prevent the locks from being unlocked by the universal key are lacked. And structural design is not reasonable enough, and the structure is complicated, and the theftproof performance is not good and processing is more difficult, and the occupation space is also bigger, still has fault rate height, with high costs, the operation use shortcoming such as inconvenient simultaneously.

Disclosure of Invention

In order to solve the problems, the invention provides an anti-theft mechanical lock, which is characterized in that a key mechanism is divided into a key sleeve and a key core, under the condition of not unlocking through a first lock mechanism, a long plate A cannot move due to the fact that a marble A is clamped in a round hole in the long plate A, and therefore the long plate A cannot move, the key sleeve and the key core cannot be separated, the effect that other people cannot copy the key even if the key is lost is achieved, and the safety and the confidentiality are greatly improved.

The technical scheme adopted by the invention is as follows: an anti-theft mechanical lock comprises a shell, a key mechanism, a first lock body mechanism and a second lock body mechanism, and is characterized in that a movable tongue is arranged on the shell; the key mechanism is divided into a key sleeve and a key core, and the key sleeve and the key core cannot be separated without being unlocked by the first lock body mechanism; the first lock body mechanism is arranged in the shell, realizes the function of unlocking the key mechanism, and is matched with the key mechanism for use, so that the function of unlocking the second lock body mechanism is realized; the second lock body mechanism is arranged in the shell and can control the flexible tongue to stretch out and draw back, so that the door lock is opened and closed.

Preferably, the key mechanism comprises a handle A, a handle B, a key sleeve, a key core, a marble A, a long plate A, a connecting rod A, a long strip A, a cylinder A and a circular sheet; the handle A is fixedly arranged on the upper end surface of the key core; the handle B is fixedly arranged on the upper end surface of the key sleeve; the key sleeve and the key core are rotatably arranged, and a cylinder with a spring is arranged on the key core; a marble A is arranged in the key sleeve; one end of the connecting rod A is rotationally connected with the long plate A, and the other end of the connecting rod A is rotationally connected with the long strip A; the strip A and the column A are rotatably arranged; the cylinder A is fixedly arranged in the key core; the wafer and the cylinder A are fixedly installed, and the wafer is used for limiting the strip A to enable the strip A not to slide.

Preferably, the first lock mechanism comprises an arc-shaped block, a sliding block, a circular ring A, a cylinder B, a disc, an L-shaped connecting rod, a long plate B, a marble B, a cylinder C and a circular ring B; the arc-shaped block and the sliding block are fixedly arranged; one end of the L-shaped connecting rod is rotationally connected with the sliding block, and the other end of the L-shaped connecting rod is rotationally connected with the circular ring A; the circular ring A is rotatably arranged inside the disc; three columns B are arranged on the circular ring A; the sliding block is slidably arranged in the groove of the disc; the long plate B is fixedly connected with the cylinder C; two marbles B are arranged on the long plate B; the cylinder C is rotatably arranged in the circular ring B; ring B and ring A bottom fixed connection, be equipped with the V-arrangement recess on the ring B, the effect that cylinder C can reciprocate when realizing rotating ring B.

Preferably, the second lock body mechanism comprises a semicircular clamp, an iron claw, a cylinder D, a round rod, a connecting rod B, a strip B, a switch door and a cylinder; the semicircular clamp and the arc-shaped block are installed in a sliding mode; the iron claw and the semicircular clamp are fixedly arranged; the cylinder D is provided with a groove and a cam, the iron claw is clamped in the groove of the cylinder D, and the cam of the cylinder D is engaged with the movable tongue; the bottom end of the round rod is fixedly connected with the sliding block; one end of the connecting rod B is rotationally connected with the round rod, and the other end of the connecting rod B is rotationally connected with the long strip B; the switch door is provided with a strip B for controlling the switch of the switch door; the cylinder and the bottom end of the switch door are fixedly installed.

The invention has the beneficial effects that:

1. through the design of dividing key mechanism into key cover and key core, under the condition of not unblock through first lock body mechanism, because pellet shot from a slingshot A card leads to long board A to be unable to remove in the round hole on long board A to rectangular A is unable to remove, so key cover and key core can't be partd, have realized even the key loses the effect that other people also can't duplicate the key, very big improvement security and confidentiality.

2. When rotating through ring A, ring B can rotate to the iron claw removes, thereby the iron claw is not blocking at cylinder D recess, realizes the function of the first relocking unblock of second lock body mechanism, has improved the security.

3. When the arc piece removed in the recess of disc, thereby the round bar removed stirs rectangular B and rotates, opens the switch door and realizes the function of the second relocking unblock of second lock body mechanism, and only when the double-lock of second lock body mechanism was all opened, thereby the key mechanism just can inject in second lock body mechanism and control second lock body mechanism and rotate the effect that the control activity tongue removed, relies on the interact between the machinery to realize opening and closing of pickproof lock, and the reliability is high.

Drawings

Fig. 1 and 2 are schematic overall structural diagrams of the present invention.

Fig. 3, 4 and 5 are schematic structural views of the key mechanism of the present invention.

Fig. 6, 7 and 8 are schematic structural views of the first lock mechanism of the present invention.

Figure 9 is a schematic structural view of a second lock body mechanism of the present invention.

Fig. 10 is a schematic structural diagram of the switching door of the present invention.

Reference numerals: 1-a housing; 2-a key mechanism; 3-a first lock mechanism; 4-a second lock body mechanism; 101-a movable tongue; 201-handle A; 202-handle B; 203-key sleeve; 204-a key core; 205-Marble A; 206-long panel A; 207-connecting rod a; 208-bar A; 209-cylinder A; 210-a wafer; 301-arc block; 302-a slider; 303-ring a; 304-cylinder B; 305-a disc; 306-L-shaped linkage; 307-long panel B; 308-Marble B; 309-column C; 310-ring B; 401-semicircular clip; 402-iron claw; 403-cylinder D; 404-round bar; 405-link B; 406-bar B; 407-opening and closing the door; 408-cylinder.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in many ways other than those described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit of the invention, and therefore the invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, and fig. 10, an anti-theft mechanical lock includes a housing 1, a key mechanism 2, a first lock mechanism 3, and a second lock mechanism 4, and is characterized in that a movable tongue 101 is provided on the housing 1; the key mechanism 2 is divided into a key sleeve 203 and a key core 204, and the key sleeve 203 and the key core 204 cannot be separated without being unlocked by the first lock mechanism 3; the first lock mechanism 3 is arranged in the shell 1, the first lock mechanism 3 realizes the function of unlocking the key mechanism 2, and the first lock mechanism 3 and the key mechanism 2 are matched for use, so that the function of unlocking the second lock mechanism 4 is realized; the second lock body mechanism 4 is arranged in the shell 1, and the second lock body mechanism 4 can control the movable bolt 101 to stretch and retract, so that the door lock switch function is realized.

In an alternative embodiment of the present invention, the key mechanism 2 comprises, in addition to the same components as in the previous embodiment, a handle a201, a handle B202, a key sleeve 203, a key cylinder 204, a pin a205, a long plate a206, a connecting rod a207, a long bar a208, a cylinder a209, a disc 210; the handle A201 is fixedly arranged on the upper end surface of the key core 204; the handle B202 is fixedly arranged on the upper end surface of the key sleeve 203; the key sleeve 203 and the key core 204 are rotatably arranged, and a cylinder with a spring is arranged on the key core 204; a marble A205 is arranged in the key sleeve 203; one end of the connecting rod A207 is rotatably connected with the long plate A206, and the other end is rotatably connected with the long strip A208; the strip A208 and the cylinder A209 are rotatably arranged; the cylinder A209 is fixedly arranged inside the key core 204; the disc 210 and the cylinder A209 are fixedly arranged, and the disc 210 is used for limiting the strip A208 so that the strip A208 cannot slide.

In an alternative implementation manner of the embodiment of the present invention, the first lock mechanism 3 includes, except for the same components as those of the previous embodiment, an arc-shaped block 301, a slider 302, a circular ring a303, a cylinder B304, a disc 305, an L-shaped link 306, a long plate B307, a marble B308, a cylinder C309, a circular ring B310; the arc-shaped block 301 and the sliding block 302 are fixedly arranged; one end of the L-shaped connecting rod 306 is rotationally connected with the sliding block 302, and the other end of the L-shaped connecting rod is rotationally connected with the circular ring A303; the ring A303 is rotatably arranged inside the disc 305; three columns B304 are arranged on the circular ring A303; the sliding block 302 is slidably arranged in a groove of the disc 305; the long plate B307 is fixedly connected with the cylinder C309; two marbles B308 are arranged on the long plate B307; the cylinder C309 is rotatably arranged in the circular ring B310; the bottom ends of the circular ring B310 and the circular ring A303 are fixedly connected, a V-shaped groove is formed in the circular ring B310, and the effect that the cylinder C309 can move up and down when the circular ring B310 is rotated is achieved.

In an alternative embodiment of the present invention, the second lock mechanism 4 comprises, in addition to the same components as the previous embodiment, a semicircular clamp 401, an iron claw 402, a cylinder D403, a round bar 404, a connecting rod B405, a bar B406, a switch door 407, and a cylinder 408; the semicircular clamp 401 and the arc-shaped block 301 are installed in a sliding mode; the iron claw 402 and the semicircular clamp 401 are fixedly arranged; a groove and a cam are arranged on the cylinder D403, the iron claw 402 is clamped in the groove of the cylinder D403, and the cam of the cylinder D403 is matched with the movable tongue 101; the bottom end of the round rod 404 is fixedly connected with the sliding block 302; one end of the connecting rod B405 is rotationally connected with the round rod 404, and the other end of the connecting rod B is rotationally connected with the strip B406; a strip B406 is arranged on the switch door 407 and used for controlling the switch of the switch door 407; the cylinder 408 and the bottom end of the switch door 407 are fixedly installed.

The working principle is as follows: the key mechanism 2 is divided into a key sleeve 203 and a key cylinder 204, and the key sleeve 203 and the key cylinder 204 cannot be separated without unlocking by the first lock mechanism 3 because the pins a205 are caught in the round holes of the long plate a206 to make the long plate a206 immovable and thus the long plate a208 immovable, the key sleeve 203 and the key cylinder 204 are inserted into the first lock mechanism 3 so that the long plate B307 is inserted into the groove of the long plate a206, the cylinder B304 is inserted into the round hole at the bottom of the key sleeve 203, the pins B308 on the long plate B307 eject the pins a205 out of the long plate a206, then the handle B202 is rotated, the key sleeve 203 follows the rotation to make the ring a303 rotate, the four sets of sliders 302 move toward the inner ring when the ring a303 rotates so that the arc blocks 301 grip the key sleeve 203, the ring B310 rotates when the ring a303 rotates, and then the cylinder C309 moves upward along the V-shaped groove on the ring B310 so that the long plate B307 moves upward and thus the long plate a206 moves upward, the small rotation of the bar a208, the retraction of the bottom end of the bar a208 into the key cylinder 204, effects that the key cylinder 204 can be pulled out of the key sleeve 203, the ring B310 will rotate when the ring a303 rotates, so that the iron claw 402 moves, and the iron claw 402 is not clamped in the groove of the cylinder D403, the first re-locking and unlocking function of the second lock body mechanism 4 is realized, when the arc-shaped block 301 moves in the groove of the disc 305, the round rod 404 moves to dial the bar B406 to rotate, the switch door 407 is opened to realize the second locking and unlocking function of the second lock body mechanism 4, only when the two locks of the second lock body mechanism 4 are both opened, the key mechanism 2 can be inserted into the second lock body mechanism 4, then the marble on the key core 204 is clamped into the round hole on the cylinder 408, the handle A201 is rotated, so that the key core 204 rotates to drive the cylinder 408 to rotate and then the cylinder D403 to rotate, and the effect of controlling the movement of the movable tongue 101 is achieved.

Claims

1. An anti-theft mechanical lock is characterized by comprising a shell (1), a key mechanism (2), a first lock body mechanism (3) and a second lock body mechanism (4), and is characterized in that a movable tongue (11) is arranged on the shell (1); the key mechanism (2) is divided into a key sleeve (203) and a key core (204), and the key sleeve (203) and the key core (204) cannot be separated under the condition that the first lock body mechanism (3) is not used for unlocking; the first lock body mechanism (3) is arranged in the shell (1), the first lock body mechanism (3) realizes the function of unlocking the key mechanism (2), and the first lock body mechanism (3) and the key mechanism (2) are matched for use, so that the function of unlocking the second lock body mechanism (4) is realized; the second lock body mechanism (4) is arranged in the shell (1), and the second lock body mechanism (4) can control the movable bolt (101) to stretch and retract so as to realize the function of opening and closing the door lock.

2. The mechanical lock according to claim 1, characterized in that said key mechanism (2) comprises a handle A (201), a handle B (22), a key sleeve (203), a key cylinder (204), a tumbler A (205), a long plate A (206), a connecting rod A (207), a long bar A (208), a cylinder A (209), a disc (210); the handle A (201) is fixedly arranged on the upper end surface of the key core (204); the handle B (202) is fixedly arranged on the upper end surface of the key sleeve (203); the key sleeve (203) and the key core (204) are rotatably arranged, and a cylinder with a spring is arranged on the key core (204); a marble A (205) is arranged in the key sleeve (203); one end of the connecting rod A (207) is rotationally connected with the long plate A (206), and the other end of the connecting rod A is rotationally connected with the long strip A (208); the strip A (208) and the cylinder A (209) are rotatably arranged; the cylinder A (209) is fixedly arranged in the key core (204); the disc (210) and the cylinder A (209) are fixedly arranged, and the disc (210) is used for limiting the strip A (208) so that the strip A (208) cannot slide.

3. The anti-theft mechanical lock according to claim 1, characterized in that said first lock body mechanism (3) comprises an arc-shaped block (301), a slide block (302), a ring A (303), a cylinder B (304), a disc (305), an L-shaped connecting rod (306), a long plate B (307), a marble B (308), a cylinder C (309), a ring B (310); the arc-shaped block (301) and the sliding block (302) are fixedly arranged; one end of the L-shaped connecting rod (306) is rotationally connected with the sliding block (302), and the other end of the L-shaped connecting rod is rotationally connected with the circular ring A (303); the ring A (303) is rotatably arranged inside the disc (305); three cylinders B (304) are arranged on the circular ring A (303); the sliding block (302) is arranged in the groove of the disc (305) in a sliding way; the long plate B (307) is fixedly connected with the cylinder C (309); two marbles B (308) are arranged on the long plate B (307); the cylinder C (309) is rotatably arranged in the circular ring B (310); ring B (310) and ring A (303) bottom fixed connection, be equipped with the V-arrangement recess on ring B (310), the effect that cylinder C (309) can reciprocate when realizing rotating ring B (310).

4. The mechanical lock of claim 3, wherein the second lock body mechanism (4) comprises a semicircular clamp (401), an iron claw (402), a cylinder D (403), a round rod (404), a connecting rod B (405), a strip B (406), a switch door (407) and a cylinder (408); the semicircular clamp (401) and the arc-shaped block (301) are installed in a sliding mode; the iron claw (402) and the semicircular clamp (401) are fixedly arranged; a groove and a cam are arranged on the cylinder D (403), the iron claw (402) is clamped in the groove of the cylinder D (403), and the cam of the cylinder D (403) is engaged with the movable tongue (101); the bottom end of the round rod (404) is fixedly connected with the sliding block (302); one end of the connecting rod B (405) is rotationally connected with the round rod (404), and the other end of the connecting rod B is rotationally connected with the long strip B (406); a long strip B (406) is arranged on the switch door (407) and used for controlling the switch of the switch door (407); the bottom ends of the cylinder (408) and the switch door (407) are fixedly arranged.