Intelligent mechanical lock

Abstract

The utility model provides an intelligent mechanical lock, and belongs to the technical field of locks. The problem that a spring bolt on an existing lock body is not provided with an anti-retreating structure is solved. The lock comprises a lock shell and a spring bolt arranged on a lock body, the spring bolt is arranged on the lock body in a sliding mode, the lock body is further provided with a transmission mechanism, a lock cylinder, a handle and the like, the lock body is further provided with a safety mechanism used for preventing the spring bolt from retreating after the spring bolt stretches out of the lock body, and the lock cylinder and the handle are in transmission connection with the spring bolt through the transmission mechanism. The mechanical lock has the advantages that the mechanical lock can be prevented from being unlocked violently or forcibly through the safety mechanism and the anti-backspacing safety mechanism, the safety of the lock is improved, and the property safety is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of locks, and in particular relates to an intelligent mechanical lock. Background Art

[0002] There are many types of existing locks with complex structures. A lock refers to a device that serves as a seal, which includes a lock shell, key, handle and its accessories. It is generally interpreted as a "sealed device that must be opened with a key". In addition to being opened with a key, a lock can also be opened with light, electricity, magnetism, sound, fingerprints, and other commands.

[0003] Most of the existing lock tongues are prevented from retreating by preventing the handle from rotating, but the lock body itself does not have a structure to prevent the lock tongue from retreating. If force is applied directly to the lock tongue, the lock tongue can retract into the lock body, thereby achieving violent unlocking and poor anti-theft performance. Summary of the Invention

[0004] The utility model aims to solve the problem that the existing lock body has poor anti-theft performance and provide an intelligent mechanical lock that can prevent the lock tongue from retreating and has high anti-theft performance.

[0005] The purpose of this utility model can be achieved through the following technical solutions:

[0006] An intelligent mechanical lock includes a lock housing, a lock tongue, and a tilted tongue mechanism arranged on the lock housing. The lock tongue is slidably arranged on the lock housing through a flat tongue plate. The lock housing is also provided with a transmission mechanism. The lock cylinder, the inner handle, and the outer handle are all connected to the lock tongue through the transmission mechanism. The lock housing is also provided with a safety mechanism for preventing the lock tongue from retracting after extending out of the lock housing. The safety mechanism includes a stopper, a driving member, and a driving mechanism that drives the driving member to move. The stopper is rotatably arranged on the lock housing, and the driving member is slidably arranged on the lock housing. During the movement of the driving member, the stopper can drive the stopper to rotate. The stopper includes a stop portion and a transmission portion. The shifting portion can block the retraction path of the flat tongue plate, the transmission portion is provided with a guide groove, the driving member is provided with a driving portion, and the driving portion is cooperatively arranged in the guide groove. The safety mechanism also includes a reset spring 1, one end of the reset spring 1 is fixed to the lock housing, and the other end is fixed to the shifting portion. The reset spring 1 enables the shifting portion to always have a movement tendency to rotate toward the retraction path of the flat tongue plate. The above-mentioned driving member can rotate the shifting portion and move out of the retraction path of the flat tongue plate under the drive of the driving mechanism.

[0007] In the above-mentioned intelligent mechanical lock, the transmission mechanism includes an outer square hole piece rotatably arranged on the lock shell and a rotating piece 1 and a rotating piece 2 sleeved on the outer square hole piece, the outer square hole piece is provided with an outer square hole for connecting with the outer handle, the rotating piece 1 is provided with a lower paddle 1 that drives the rotating piece 2 to rotate synchronously, the transmission mechanism also includes an upper linkage member and a rotating member, one end of the upper linkage member is hingedly connected to the above-mentioned rotating piece 2, the above-mentioned rotating member is rotatably arranged on the lock shell, a linkage component is provided between the rotating member and the above-mentioned flat tongue plate, and the flat tongue plate can be driven to slide through the linkage component during the rotation of the rotating member, the rotating member is provided with an outer guide column, the upper linkage member is provided with an outer guide groove, the outer guide column is arranged in the outer guide groove, the upper linkage member can move with the above-mentioned rotating piece 2, the upper linkage member can also drive the rotating member to rotate, and the rotating member drives the flat tongue plate to move.

[0008] The outer hole part and the outer hole part are connected with the inner square hole part, and the inner square hole part and the outer hole part are connected with the inner square hole part, and the inner square hole part and the outer hole part are connected with the inner square hole part. The outer hole part and the inner square hole part can rotate synchronously. The outer hole part and the outer square hole part can rotate synchronously. The inner square hole part and the rotating piece five can rotate synchronously. The rotating piece four is provided with a guide column one, and the rotating piece three is provided with a guide groove one matching the rotating piece four. The rotating piece three and the rotating piece four are rotated synchronously through the guide column one and the guide groove one. The transmission mechanism also includes a lower linkage part, one end of the lower linkage part is hingedly connected to the rotating piece four, the rotating piece is also provided with an inner guide column, the lower linkage part is provided with an inner guide groove, and the inner guide column is arranged in the inner guide groove. The lower linkage part can drive the rotating piece to rotate during the movement of the rotating piece four, and the rotating piece drives the flat tongue plate to move.

[0009] In the above-mentioned intelligent mechanical lock, the upper linkage part is provided with a circular pin hole 1, and the lower linkage part is also provided with a pin hole 2. The upper linkage part is hingedly connected to the rotating piece 2 through the pin hole 1, and the lower linkage part is hingedly connected to the rotating piece 5 through the pin hole 2. The rotating part is provided with a guide column 2, and the flat tongue plate is also provided with a rotating slot. The guide column 2 is located in the rotating slot, and the flat tongue plate can move under the drive of the guide column 2 on the rotating part.

[0010] In the above-mentioned smart mechanical lock, the smart mechanical lock also includes a key unlocking mechanism, which includes a linkage part three movably arranged on the lock shell, and the moving direction of the linkage part three is perpendicular to the movement direction of the above-mentioned lock tongue. The linkage part three is provided with a toggle part one that drives the upper linkage part to move, and the linkage part three is also provided with a toggle part two that drives the shift part to rotate. During the process of the key rotating the lock cylinder, the dial head on the lock cylinder can drive the linkage part three to move.

[0011] In the above-mentioned intelligent mechanical lock, the inclined bolt mechanism includes an inclined bolt, an inclined bolt rod, an inclined bolt stop piece, a driving member 2 and a reset spring 2. The inclined bolt stop piece is fixedly arranged on the lock housing, the inclined bolt is fixed on one end of the inclined bolt rod, one end of the inclined bolt rod passes through the inclined bolt stop piece and is fixedly connected to the driving member 2, and the two ends of the reset spring 2 respectively lean against the inclined bolt and the inclined bolt stop piece. The rotating piece 1, the rotating piece 2 and the rotating piece 5 are all provided with a fork that can toggle the driving member 2. The fork is located between the inclined bolt stop piece and the driving member 2. The fork of the rotating piece 1 is fork 1, the fork of the rotating piece 2 is fork 2, and the fork of the rotating piece 5 is fork 3. The rotating piece 1, the rotating piece 2 and the rotating piece 5 can toggle the driving member 2 to move through the fork, thereby driving the inclined bolt to retract.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] The utility model has a safety mechanism for preventing the lock tongue from retracting under the action of external force after being extended into place, which can effectively prevent the lock from being opened by force and greatly improve the anti-theft performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of the utility model from the first angle.

[0015] Figure 2 This is an explosion diagram of the utility model.

[0016] Figure 3 This is a schematic structural diagram of the utility model from a second angle.

[0017] Figure 4 This is a schematic structural diagram of the utility model from a third angle.

[0018] Figure 5 This is a schematic structural diagram of the utility model from the fourth angle.

[0019] Figure 6 It is a structural diagram of the transmission mechanism of the utility model.

[0020] In the figure, 1-lock housing; 200-transmission mechanism; 3-safety mechanism; 4-latch bolt mechanism; 5-key unlocking mechanism; 201-rotating piece 1; 202-rotating piece 2; 203-gasket; 204-rotating piece 3; 2041-guide groove 1; 205-rotating piece 4; 2051-guide post 1; 206-rotating piece 5; 207-external square hole member; 208-inner square hole member; 209-upper linkage member; 2091-external guide groove; 2092-external pin-shaped hole; 210-lower linkage member; 2101-inner guide groove; 2102-inner pin-shaped hole; 211-rotating part; 2111-outer guide column; 2112-inner guide column; 212-flat tongue plate; 301-servo motor; 302-screw; 303-driving part; 3031-driving part; 304-shifting part; 3041-transmission part; 3042 shifting part; 305-reset spring 1; 401-oblique tongue; 402-reset spring 2; 403-stopper; 404-driving part 2; 501-lock cylinder mounting hole; 502-linking part 3; 5021-sliding part 1; 5022-sliding part 2; 5023-sliding part 3. DETAILED DESCRIPTION

[0021] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] Working process, Figure 5 As an illustration: Example

[0024] like Figures 1-6The illustrated intelligent mechanical lock comprises a lock housing 1, a bolt, and a latch mechanism 4 arranged on the lock housing 1, the bolt is slidingly arranged on the lock housing 1 through a flat tongue plate 212, the lock housing 1 is further provided with a transmission mechanism 200, a lock cylinder, an inner handle, and an outer handle are all connected with the bolt through the transmission mechanism 200, characterized in that the lock housing 1 is further provided with an insurance mechanism 3 for preventing the bolt from retracting after extending out of the lock housing 1, the insurance mechanism 3 comprises a blocking piece 304, a driving piece 303, and a driving mechanism for driving the driving piece 303 to move, the blocking piece 304 is rotationally arranged on the lock housing 1, the driving piece 303 is slidingly arranged on the lock housing 1, the driving piece 303 can drive the blocking piece 304 to rotate during movement, the blocking piece 304 is provided with a blocking portion 3042 and a transmission portion 3041, the blocking portion 3042 can block the retraction path of the flat tongue plate 212, the transmission portion 3041 is provided with a guide groove, the driving piece 303 is provided with a driving portion 3031, the driving portion 3031 is arranged in the guide groove in a matched manner, the driving piece 303 can drive the blocking piece 304 to rotate through the driving portion 3031 and the guide groove, so that the blocking piece 304 blocks or does not block the retraction path of the flat tongue plate 212, in order to Figure 5 The blocking piece 304 will not block the retraction path of the flat tongue plate 212 when rotating clockwise, and will block the retraction path of the flat tongue plate 212 when rotating counterclockwise, the insurance mechanism 3 further comprises a reset spring 305, one end of the reset spring 305 is fixed on the lock housing 1, and the other end is fixed on the blocking piece 304, the reset spring 305 always has a movement tendency of rotating to block the retraction path of the flat tongue plate 212, and the driving piece 303 can drive the blocking piece 304 to rotate and move out of the retraction path of the flat tongue plate 212 under the driving of the driving mechanism.

[0025] In the above-mentioned intelligent mechanical lock, the transmission mechanism 200 includes an outer square hole member 208 rotatably arranged on the lock housing 1 and a rotating piece 1 201 and a rotating piece 202 sleeved on the outer square hole member 208. The outer square hole member 208 is provided with an outer square hole for connecting to the outer handle, and the rotating piece 1 201 is provided with a lower paddle 1 that drives the rotating piece 202 to rotate synchronously. The transmission mechanism 200 also includes an upper linkage member 209 and a rotating member 211. One end of the upper linkage member 209 is hingedly connected to the above-mentioned rotating piece 202. The above-mentioned rotating member 211 is rotatably arranged on the lock housing 1. A linkage component is provided between the rotating member 211 and the above-mentioned flat tongue plate 212. The rotating member 21 During the rotation process, the flat tongue plate 212 can be driven to slide by the linkage assembly. The rotating member 211 is provided with an outer guide column 2111, and the upper linkage member 209 is provided with an outer guide groove 2091. The outer guide column 2111 is arranged in the outer guide groove 2091. The outer guide groove 2091 is in the shape of a straight notch. The upper linkage member 209 can move with the rotating piece 202. The rotating piece 1 201 rotates clockwise to drive the rotating piece 202 to rotate clockwise, and the rotating piece 202 drives the upper linkage member 209 to rotate clockwise. The upper linkage member 209 can also drive the rotating member 211 to rotate clockwise. The rotating member 211 drives the flat tongue plate 212 to slide and retract in the lock housing.

[0026] In the above-mentioned intelligent mechanical lock, the transmission mechanism 200 also includes an inner square hole member 207 rotatably arranged on the lock housing 1, a circular groove is provided on the inner square hole member 207, and a circular shaft column is provided under the outer square hole member 208. The inner square hole member 207 is concentrically sleeved under the outer square hole member 208 through the circular groove and the circular shaft column, and further includes a rotating piece 4 205 and a rotating piece 5 206 sleeved on the inner square hole member 207, and a rotating piece 3 204 sleeved on the outer square hole member 208. The inner square hole member 207 has an inner handle for connecting to the inner handle. The inner square hole 207 and the rotating piece 205 can realize synchronous rotation, the outer square hole 208 and the rotating piece 204 can realize synchronous rotation, the inner square hole 207 and the rotating piece 206 can realize synchronous rotation, the rotating piece 205 is provided with a guide column 2051, the rotating piece 204 is provided with a guide groove 2041 matching the rotating piece 205, the guide groove is in the shape of a horizontal and vertical slot, the right end of which is a notch, and the guide column 2051 can be inserted into the horizontal and vertical slot from the right end of the horizontal and vertical slot. In the slot, the rotating piece 3 204 and the rotating piece 4 205 are rotated synchronously through the guide column 1 2051 and the guide groove 1 2041. The rotating piece 3 204 rotates counterclockwise through the guide groove 1 2041 and the guide column 1 2051 to drive the rotating piece 4 205 to rotate counterclockwise. The rotating piece 4 205 rotates clockwise through the guide groove 1 2041 and the guide column 1 2051 to drive the rotating piece 3 204 to rotate clockwise. The transmission mechanism 200 also includes a lower linkage 210. One end of the lower linkage 210 is connected to The rotating piece four 205 is hingedly connected, and the rotating piece four 205 can drive the lower linkage part 210 to rotate counterclockwise, and the lower linkage part 210 drives the rotating part 211 to rotate counterclockwise. The rotating part 211 is also provided with an inner guide column 2112, and the lower linkage part 210 is provided with an inner guide groove 2101. The inner guide column 2112 is arranged in the inner guide groove 2101. The lower linkage part 210 can drive the rotating part 211 to rotate during the movement of the above-mentioned rotating piece four 205, and the rotating part 211 drives the flat tongue plate 212 to move.

[0027] In the above-mentioned intelligent mechanical lock, the upper linkage 209 is provided with a circular pin shaft hole one 2092, the lower linkage 210 is also provided with a pin shaft hole two 2102, the upper linkage 209 is hingedly connected with the rotating piece two 202 through the pin shaft hole one 2092, the lower linkage 210 is hingedly connected with the rotating piece five 206 through the pin shaft hole two 2102, the rotating piece 211 is provided with a guide column two, the flat tongue plate 212 is further provided with a rotating notch, the rotating notch is provided with a horizontal notch and a vertical notch, the centers of the two notches are perpendicular, the guide column two is clamped into the rotating notch from the right end of the horizontal notch, the rotating piece 211 rotates clockwise, the guide column two is clamped at the lower end of the vertical notch, drives the flat tongue plate 212 to retract in the lock shell, the rotating piece 211 rotates counterclockwise, the guide column two is clamped at the upper end of the vertical notch, drives the flat tongue plate 212 to extend out of the lock shell, the guide column two is located in the rotating notch, and the flat tongue plate 212 can move under the driving of the guide column two on the rotating piece 211. The extension and retraction of the flat tongue plate 212 in the lock shell are realized.

[0028] In the above-mentioned intelligent mechanical lock, the intelligent mechanical lock further includes a key unlocking mechanism 5, the key unlocking mechanism 5 includes a linkage three 502 movably arranged on the lock shell 1, the moving direction of the linkage three 502 is perpendicular to the lock tongue movement direction, the linkage three 502 is provided with a first driving part 5021 for driving the upper linkage 209 to move, and the linkage three 502 is further provided with a second driving part 5022 for driving the blocking piece 304 to rotate, and the driving head on the lock cylinder can drive the linkage three 502 to move in the process of rotating the lock cylinder. The linkage three 502 can drive the upper linkage 209 to rotate clockwise through the first driving part 5021, the clockwise rotation of the upper linkage 209 can realize the retraction of the flat tongue plate 212 in the lock shell, and the linkage three 502 can drive the blocking piece 304 to rotate clockwise through the second driving part 5022, so that the blocking piece 304 cannot block the retraction path of the flat tongue plate 212 after rotating clockwise.

[0029] In the above-mentioned intelligent mechanical lock, the latch bolt mechanism 4 includes a latch bolt 401, a latch bolt rod, a latch bolt stop piece 403, a driving piece two 404 and a return spring two 402, the latch bolt stop piece 403 is fixedly arranged on the lock shell, the latch bolt 401 is fixed on one end of the latch bolt rod, one end of the latch bolt rod passes through the latch bolt stop piece 403 and is fixedly connected with the driving piece two 404, and the two ends of the return spring two 402 are respectively elastically abutted against the latch bolt and the latch bolt stop piece 403, the rotating piece one 201, the rotating piece two 202 and the rotating piece five 206 are all provided with a yoke capable of driving the driving piece two 404, the yoke is located between the latch bolt stop piece 403 and the driving piece two 404, the yoke of the rotating piece one 201 is a first yoke, the yoke of the rotating piece two 202 is a second yoke, and the yoke of the rotating piece five 206 is a third yoke, and the rotating piece one 201, the rotating piece two 202 and the rotating piece five 206 can drive the driving piece two 404 to move through the yoke, thereby driving the latch bolt 401 to retract.

[0030] The driving mechanism includes a motor 301, a gear and a rack. The gear is installed on the motor shaft of the motor 301. The gear is engaged with the rack. The rack is slidably arranged on the lock housing 1. The movement direction of the rack is consistent with the movement direction of the driving member 303. The driving member 303 moves under the push of the rack.

[0031] The outer handle unlocks the door, and a password or fingerprint is entered. The motor 301 receives the command to start, driving the driving member 303 to move leftward. The stopper 304 is driven by the driving member 303 and rotates clockwise. The stopper 304 will no longer block the retraction of the flat tongue plate 212. Then the person rotates the outer handle, and the outer handle rotates clockwise, driving the outer square hole member 207 to rotate clockwise. The outer square hole member 207 drives the rotating piece 1 201 to rotate clockwise. The rotating piece 1 201 drives the rotating piece 2 202 to rotate through the lower paddle 1. The rotating piece 202 is hinged to the upper linkage member 209. The rotating piece 202 drives the upper linkage member 209 to move rightward. The upper linkage member 209 drives the rotating member 211 to rotate clockwise. The rotating member 211 rotates and drives the flat tongue plate 212 to move, causing the lock bolt to retract into the lock body. When the rotating member 1 rotates clockwise, the shift fork 1 on the rotating member 1 drives the driving member 404 to move, so that the inclined bolt retracts into the lock body.

[0032] When the outer handle is locked, the person rotates the outer handle, which drives the outer square hole piece 207 to rotate counterclockwise, and the outer square hole piece 207 drives the rotating piece three 204 to rotate counterclockwise, and the rotating piece three 204 drives the rotating piece four 205 to rotate counterclockwise, and the rotating piece four 205 is hingedly connected to the lower linkage piece 210, and the lower linkage piece 210 moves to the right, and the lower linkage piece 210 drives the rotating piece 211 to rotate counterclockwise, and the rotation of the rotating piece 211 drives the flat tongue plate 212 to move, so that the lock tongue extends out of the lock body to lock.

[0033] The inner handle unlocks the door. When the person rotates the inner handle, the inner square hole member 208 connected to the inner handle rotates clockwise. The inner handle drives the rotating piece 5 206 to rotate clockwise. The lower paddle 2 on the rotating piece 5 206 drives the blocking member 304 to rotate clockwise. The blocking member 304 will no longer block the flat lock tongue 212 from retracting. Inner square hole member 208 drives rotating piece 4 205 to rotate clockwise, which in turn drives rotating piece 3 204 clockwise. Rotating piece 3 204 drives outer square hole member 207 to rotate clockwise, which in turn drives rotating piece 1 201 to rotate clockwise. Rotating piece 1 201 drives rotating piece 2 202 via lower shifting piece 1. Rotating piece 202 is hingedly connected to upper linkage member 209. Rotating piece 202 drives upper linkage member 209 to move rightward. Upper linkage member 209 drives rotating piece 211 to rotate clockwise. The rotation of rotating piece 211 drives flat tongue plate 212 to move, causing the lock tongue to retract into the lock body. As rotating piece 1 rotates clockwise, shifting fork 1 on it drives driving piece 404 to move, causing the oblique tongue to retract into the lock body.

[0034] The inner handle is locked, and the inner handle drives the inner square hole piece 210 to rotate counterclockwise. The inner square hole piece 209 drives the rotating piece four 205 to rotate counterclockwise. The rotating piece four 205 is hingedly connected to the lower linkage piece 210. The rotating piece four 205 drives the lower linkage piece 210 to move to the right. The lower linkage piece 210 drives the rotating piece 211 to rotate counterclockwise. The rotation of the rotating piece 211 drives the flat tongue plate 212 to move, so that the lock tongue extends out of the lock body to lock.

[0035] To unlock the lock, insert the key into the keyhole on the lock cylinder, causing the dial on the lock cylinder to rotate and drive linkage member 3 502 to translate rightward. Linkage member 3 502, via its second toggle portion 5022, drives the stopper 304 to rotate clockwise, causing the stopper 304 to exit the path of the flat tongue plate 212. Furthermore, during the rightward translation of linkage member 3 502, the toggle portion 1 5021 on upper linkage member 3 209 drives the upper linkage member 209 to rotate clockwise, causing the lock bolt to retract through upper linkage member 209. Example

[0036] Different from the first embodiment, the driving mechanism is a linear motor.

[0037] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. An intelligent mechanical lock, comprising a lock housing (1) and a lock tongue and a tilted tongue mechanism arranged on the lock housing (1), wherein the lock tongue is slidably arranged on the lock housing (1) through a flat tongue plate (212), and a transmission mechanism is further provided on the lock housing (1), wherein a lock core, an inner handle, and an outer handle are all connected to the lock tongue through the transmission mechanism, characterized in that: The lock housing (1) is further provided with a safety mechanism for preventing the lock tongue from retracting after extending out of the lock housing (1), the safety mechanism comprising a stopper (304), a driving member (303), and a driving mechanism for driving the driving member (303) to move, the stopper (304) being rotatably arranged on the lock housing (1), the driving member (303) being slidably arranged on the lock housing (1), and the driving member (303) being able to drive the stopper (304) to rotate during movement, the stopper (304) being provided with a stop portion (3042) and a transmission portion (3041), The blocking portion (3042) can block the retraction path of the flat tongue plate (212), the transmission portion (3041) is provided with a guide groove, the driving member (303) is provided with a driving portion (3031), and the driving portion (3031) is arranged in the guide groove. The safety mechanism also includes a reset spring (305), one end of the reset spring (305) is fixed to the lock housing (1), and the other end is fixed to the blocking member (304). The reset spring (305) enables the blocking member (304) to always have a movement tendency to rotate toward the retraction path of the flat tongue plate (212). The driving member (303) can rotate the blocking member (304) out of the retraction path of the flat tongue plate (212) under the drive of the driving mechanism.

2. The intelligent mechanical lock according to claim 1, characterized in that: The transmission mechanism comprises an outer square hole member (208) rotatably arranged on the lock housing (1) and a rotating piece 1 (201) and a rotating piece 2 (202) sleeved on the outer square hole member (208); the outer square hole member (208) is provided with an outer square hole for connecting with an outer handle; the rotating piece 1 (201) is provided with a lower paddle 1 for driving the rotating piece 2 (202) to rotate synchronously; the transmission mechanism also comprises an upper linkage member (209) and a rotating member (211); one end of the upper linkage member (209) is hingedly connected to the rotating piece 2 (202); the rotating member (211) is rotatably arranged on the lock housing (1), and the rotating member (211) is rotated. A linkage assembly is provided between the rotating member (211) and the flat tongue plate (212). During the rotation of the rotating member (211), the flat tongue plate (212) can be driven to slide by the linkage assembly. The rotating member (211) is provided with an outer guide column (2111). The upper linkage member (209) is provided with an outer guide groove (2091). The outer guide column (2111) is arranged in the outer guide groove (2091). The upper linkage member (209) can move with the rotating piece (202). The upper linkage member (209) can also drive the rotating member (211) to rotate. The rotating member (211) drives the flat tongue plate (212) to move.

3. The intelligent mechanical lock according to claim 2, characterized in that: The transmission mechanism further comprises an inner square hole member (207) rotatably arranged on the lock housing (1), a rotating piece four (205) and a rotating piece five (206) sleeved on the inner square hole member (207), and a rotating piece three (204) sleeved on the outer square hole member (208); the inner square hole member (207) has an inner square hole for connecting to the inner handle; the inner square hole member (207) and the rotating piece four (205) can realize synchronous rotation; the outer square hole member (208) and the rotating piece four (205) can realize synchronous rotation; the inner square hole member (207) and the rotating piece four (205) can realize synchronous rotation; the outer square hole member (208) and the rotating piece four (204) can realize synchronous rotation; the inner square hole member (207) and the rotating piece four (205) can realize synchronous rotation; the inner square hole member (207) and the rotating piece four (205) can realize synchronous rotation; the inner square hole member (207) and the rotating piece four (205) can realize synchronous rotation; the inner square hole member (208) and the rotating piece four (204) can realize synchronous rotation; the inner square hole member (207) and the rotating piece four (205) can realize synchronous rotation; the inner square hole member (207) and the rotating piece four (205) can realize synchronous rotation; the inner square hole member (207) and the rotating piece four (206 ... The rotating piece 3 (204) can rotate synchronously, the inner square hole member (207) and the rotating piece 5 (206) can realize synchronous rotation, the rotating piece 4 (205) is provided with a guide column 1 (2051), the rotating piece 3 (204) is provided with a guide groove 1 (2041) matching the rotating piece 4 (205), the rotating piece 3 (204) and the rotating piece 4 (205) realize synchronous rotation through the guide column 1 (2051) and the guide groove 1 (2041). The transmission mechanism further comprises a lower linkage member (210), one end of which is hingedly connected to the rotating piece (205), and the rotating piece (211) is further provided with an inner guide column (2112). The lower linkage member (210) is provided with an inner guide groove (2101), and the inner guide column (2112) is arranged in the inner guide groove (2101). The lower linkage member (210) can drive the rotating piece (211) to rotate during the movement of the rotating piece (205), and the rotating piece (211) drives the flat tongue plate (212) to move.

4. The intelligent mechanical lock according to claim 3, characterized in that: The upper linkage member (209) is provided with a circular pin hole 1 (2092), and the lower linkage member (210) is also provided with a pin hole 2 (2102). The upper linkage member (209) is hingedly connected to the rotating piece 2 (202) through the pin hole 1 (2092), and the lower linkage member (210) is hingedly connected to the rotating piece 4 (205) through the pin hole 2 (2102). The rotating member (211) is provided with a guide column 2, and the flat tongue plate (212) is also provided with a rotating notch. The guide column 2 is located in the rotating notch. The flat tongue plate (212) can move under the drive of the guide column 2 on the rotating member (211).

5. The intelligent mechanical lock according to claim 4, characterized in that: The intelligent mechanical lock further comprises a key unlocking mechanism (5), the key unlocking mechanism (5) comprising a linkage member 3 (502) movably arranged on the lock housing (1), the movement direction of the linkage member 3 (502) being perpendicular to the movement direction of the lock tongue, the linkage member 3 (502) being provided with a toggle portion 1 (5021) for driving the upper linkage member (209) to move, and the linkage member 3 (502) being further provided with a toggle portion 2 (5022) for driving the shifting member (304) to rotate, and when the key rotates the lock cylinder, the toggle head on the lock cylinder can drive the linkage member 3 (502) to move.

6. The intelligent mechanical lock according to claim 5, characterized in that: The inclined tongue mechanism comprises an inclined tongue (401), an inclined tongue rod, an inclined tongue stop plate (403), a second driving member (404) and a second return spring (402). The inclined tongue stop plate (403) is fixedly arranged on the lock housing. The inclined tongue (401) is fixed on one end of the inclined tongue rod. One end of the inclined tongue rod passes through the inclined tongue stop plate (403) and is fixedly connected to the second driving member (404). The two ends of the second return spring (402) are respectively elastically leaned against the inclined tongue and the inclined tongue stop plate (403). The rotating piece 1 (201), the rotating piece 2 (202) and the rotating piece 5 (206) are all provided with a shift fork capable of shifting the second driving member (404). The shift fork is located between the inclined tongue stop plate (403) and the second driving member (404). The shift fork of the rotating piece 1 (201) is shift fork 1, the shift fork of the rotating piece 2 (202) is shift fork 2, and the shift fork of the rotating piece 5 (206) is shift fork 3. The rotating piece 1 (201), the rotating piece 2 (202), and the rotating piece 5 (206) can shift the driving member 2 (404) through the shift fork to move and thus drive the inclined tongue to retract.

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