CN216240166U - Cabinet door locking mechanism - Google Patents

Abstract

The utility model discloses a cabinet door locking mechanism which comprises a main lock and a mechanical lock, wherein the main lock comprises a main lock transmission rack, a turntable gear, a lower transmission rod, an upper transmission rod, a motor fixing plate and a motor driving piece, wherein the main lock transmission rack, the turntable gear, the lower transmission rod, the upper transmission rod, the motor fixing plate and the motor driving piece are arranged on a main lock bottom shell; the mechanical lock comprises a lock core and a mechanical shifting piece fixedly connected with the lock core, wherein the mechanical shifting piece comprises a mechanical positioning piece and a mechanical stop lever. The utility model solves the problem that the top and bottom bolts need to be manually rotated after the cabinet door lock is electrically opened, can realize automatic opening of the top and bottom bolts during electric opening, and does not need to be manually rotated to open the top and bottom bolts; the structure that two keys opened the cabinet door lock simultaneously is adopted, and two keys do not have the precedence when mechanical key opened, and only two keys target in place simultaneously can rotate the handle and open the door for the condition that requirements such as bullet cabinet adopted double to open, the experience sense is higher when meeting national standard requirement.

Description

Cabinet door locking mechanism

Technical Field

The utility model belongs to the technical field of cabinet door lock structures, and particularly relates to a cabinet door locking mechanism.

Background

At present, a bullet cabinet door locking mechanism on the market is unlocked by a motor lock, and is unlocked by two persons according to the national standard requirement of a mechanical key, but the mechanical key is opened and closed sequentially, and a user must open and close the door according to the specified sequence. In addition, when the motor is electrically started, automatic starting cannot be realized, the motor only opens the locking structure to start the switch, and the lock bolt still needs to be pulled manually after the motor is electrically started.

SUMMERY OF THE UTILITY MODEL

In order to realize the effect of automatic opening when the cabinet door locking structure is electrically opened and realize the opening by a double mechanical key, the utility model provides a cabinet door locking mechanism, which adopts the following technical method:

a cabinet door locking mechanism comprises a main lock, wherein the main lock comprises a main lock transmission rack, a turntable gear, a lower transmission rod, an upper transmission rod, a motor fixing plate and a motor driving piece, wherein the main lock transmission rack, the turntable gear, the lower transmission rod, the upper transmission rod, the motor fixing plate and the motor driving piece are arranged on a main lock bottom shell;

the rotary table gear is a semicircular rotary table with teeth and is rotatably fixed on the main lock bottom case through a central shaft, and the top of the main lock transmission rack is provided with teeth meshed with the rotary table gear;

the right end of the turntable gear is rotatably connected with the upper transmission rod through a pin shaft, and the left end of the turntable gear is rotatably connected with the lower transmission rod through a pin shaft;

the motor is fixed on the motor fixing plate, the motor driving piece is respectively connected with the motor and the main lock transmission rack, and the main lock transmission rack is driven to horizontally reciprocate under the driving of the forward and reverse rotation of the motor.

Preferably, the motor is connected with the reduction gearbox, an output rod of the reduction gearbox is perpendicular to the motor fixing plate, the output rod of the reduction gearbox is linearly connected with the motor driving piece, and a vertical pin hole with a rectangular round angle is formed in the middle of the main lock transmission rack; the motor driving part penetrates through the vertical pin hole, and when the motor driving part rotates under the driving of the motor and the reduction gearbox, the main lock transmission rack horizontally moves left and right under the connecting action of the vertical pin hole.

Preferably, the main lock further comprises a cover plate, the cover plate and the main lock bottom shell form a main lock shell, and the meshing position of the turntable gear and the main lock transmission rack, and the connecting position of the turntable gear and the lower transmission rod and the upper transmission rod are contained, so that the protection effect is achieved.

Preferably, the main lock further comprises a state sensor arranged on the main lock bottom shell, the state sensor comprises a first sensor and a second sensor, a first lug and a second lug are arranged at two ends of the edge of the turntable gear, and an included angle between each of the first lug and the second lug and a connecting line of a central shaft of the turntable gear is 90 degrees; the central shaft of the turntable gear is positioned on the same horizontal line with the first sensor and the second sensor; the first sensor and the second sensor respectively detect the positions of the first lug and the second lug, and the opening and closing state of the cabinet door is judged through the rotating position of the turntable gear.

The main lock is fixed on the cabinet body through a main lock bottom plate connected with a main lock bottom shell.

Preferably, the left end of the main lock transmission rack is connected with the first stop lever in the vertical direction, and the right end of the main lock transmission rack is connected with the bolt; the left end of the motor fixing plate is connected with a second stop lever in the vertical direction.

Preferably, the locking mechanism further comprises a mechanical lock, the mechanical lock comprises a lock core and a mechanical shifting piece fixedly connected with the lock core, and the mechanical shifting piece comprises a mechanical positioning piece and a mechanical stop lever.

Preferably, the cabinet door locking mechanism further comprises a mechanical position sensor arranged at the bottom of the locking mechanism, and the mechanical positioning piece and the mechanical position sensor are matched to indicate the opening and closing state of the cabinet door lock.

Preferably, the mechanical stop lever is located between a first stop lever at the left end of the main lock transmission rack and a second stop lever at the left end of the motor fixing plate, the mechanical stop lever pushes the first stop lever to move leftwards when moving leftwards, and the mechanical stop lever pushes the second stop lever to move rightwards when moving rightwards.

The upper transmission rod is connected with the main lock connecting rod, the main lock connecting rod is connected with the top and bottom bolt, the lifting of the main lock connecting rod realizes the ejection and the packing up of the top and bottom bolt, and when the top and bottom bolt is packed up, the cabinet door lock is flicked.

Preferably, the cabinet door locking mechanism provided by the utility model further comprises a handle rack, a return spring, a handle rack guide post, a handle turntable, a handle gear, a handle turntable connecting rod connected to the handle turntable, and a handle seat, a handle ring and a handle rotating rod which are positioned outside the main lock bottom plate, wherein the handle rack, the return spring, the handle rack guide post, the handle turntable, the handle gear, the handle turntable connecting rod are arranged below the main lock and the mechanical lock; the handle rotating disc and the handle gear are positioned in the main lock shell and are coaxially connected with a handle ring and a handle rotating rod outside the main lock shell, the handle rotating rod is fixed on the handle seat, and the handle rotating disc is driven to rotate by the handle rotating rod when the handle ring rotates; the contact position of the handle rack and the handle gear is provided with teeth meshed with the handle gear; the handle rack is also provided with a transverse guide hole, a slidable guide block is arranged on the guide hole, and the guide block is fixedly connected to a handle rack guide post, so that the handle rack is limited on the main lock bottom plate in a left-right translational manner, and the front position and the rear position of the handle rack are fixed; a raised blocking block is arranged at the contact position of the handle rack and the lock cylinder, and the top end of the blocking block is a round angle; in a locking state, the blocking block is positioned between the central shaft of the lock core and the mechanical stop lever and plays a role in blocking the handle rack; the right end of the reset spring is fixed to the handle rack, and the left end of the reset spring is fixed to a mounting hole in the door panel of the cabinet door.

Preferably, the mechanical lock comprises two sets of lock cylinders and mechanical shifting pieces which are connected in series, each lock cylinder comprises a first lock cylinder and a second lock cylinder, the mechanical positioning pieces of the mechanical shifting pieces comprise first mechanical positioning pieces and second mechanical positioning pieces, the mechanical stop levers comprise first mechanical stop levers and second mechanical stop levers, the first lock cylinders and the second lock cylinders are connected in series, the first mechanical positioning pieces are fixed on the first lock cylinders, and the second mechanical positioning pieces are fixed on the second lock cylinders;

the mechanical position sensor comprises a third sensor and a fourth sensor, the third sensor detects the position of the first mechanical locating piece, and the fourth sensor detects the position of the second mechanical locating piece.

Preferably, the cabinet door locking mechanism further comprises a main control board, wherein the main control board is respectively connected with the first sensor, the second sensor, the third sensor, the fourth sensor and the motor, receives electric signals transmitted by the first sensor, the second sensor, the third sensor and the fourth sensor, and controls the positive and negative rotation of the motor.

Preferably, the first sensor, the second sensor, the third sensor and the fourth sensor are all comparison type photoelectric sensors, comprise infrared emission light projectors and photoelectric receiving devices, and generate different models and transmit the models to the main control panel through whether the infrared light path is blocked.

Compared with the prior art, the utility model has the beneficial effects that:

(1) the utility model solves the problem that the top and bottom bolts need to be manually rotated after the cabinet door lock is electrically opened, can realize automatic opening of the top and bottom bolts during electric opening, and does not need to be manually rotated to open the top and bottom bolts; the device is not only suitable for locking the cabinet door of the bullet cabinet, but also can be used for other types of safe cases and article storage cabinets which need to be automatically opened;

(2) the utility model also provides a structure for opening the cabinet door lock by adopting two keys simultaneously, the two keys are not in sequence when the mechanical key is opened, the handle can be rotated to open the door only when the two keys are in place simultaneously, the utility model is used for the condition that the bullet cabinet and the like require double opening, and the experience feeling is higher while the national standard requirement is met.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model.

Fig. 1 is an overall structural view of a cabinet door locking mechanism provided by the utility model in a locking state;

fig. 2 is an exploded view of a partial structure of a locking mechanism of a cabinet door provided by the utility model in a locking state;

FIG. 3 is a detail view of a structure of a turntable gear in a cabinet door locking mechanism according to the present invention;

fig. 4 is a front view of a cabinet door locking mechanism provided by the present invention.

FIG. 5 is a top view of a motor driving member of a locking mechanism of a cabinet door according to the present invention;

FIG. 6 is a structural view of a connection position between a transfer plate gear and an upper transmission rod in the locking mechanism of the cabinet door according to the present invention;

fig. 7 is a structural diagram of a pop-up door device provided by the utility model.

Wherein, 1-a main lock bottom plate, 2-a main lock, 3-a lock core, 4-a mechanical plectrum, 5-a mechanical position sensor, 6-a reset spring, 7-a handle turntable, 8-a handle gear, 9-a handle rack, 10-a handle rotating rod, 11-a handle ring, 12-a handle rack guide column, 13-a handle seat, 14-a cabinet door bolt, 15-a main lock connecting rod, 16-a handle turntable connecting rod;

31-a first lock cylinder, 32-a second lock cylinder;

41-mechanical positioning piece, 42-mechanical stop lever;

141-spring door shaft, 142-spring stop pin, 143-spring door spring, 144-guide sleeve, 145-spring door fixing seat and 146-snap spring;

201-main lock bottom shell, 202-main lock transmission rack, 203-lower transmission rod, 204-upper transmission rod, 205-turntable gear, 206-first sensor, 207-cover plate, 208-motor driving piece, 209-motor fixing plate, 210-motor, 211-second sensor, 212-first stop lever, 213-second stop lever;

411-first mechanical spacer, 412-second mechanical spacer;

2021-vertical pin hole, 2051-first tab, 2052-second tab.

Detailed Description

It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the utility model as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the utility model. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Example 1: cabinet door locking mechanism

As shown in fig. 1, the cabinet door locking mechanism includes a main lock 2, and the main lock 2 is configured as shown in fig. 2 and 4, and includes a main lock transmission rack 202, a turntable gear 205, a lower transmission rod 203, an upper transmission rod 204, a motor 210, a motor fixing plate 209 and a motor driving member 208, which are arranged on a main lock bottom case 201;

the turntable gear 205 is a semicircular turntable with teeth and is rotatably fixed on the main lock bottom shell 201 through a central shaft, and the top of the main lock transmission rack 202 is provided with teeth meshed with the turntable gear 205;

as shown in fig. 6, the right end of the turntable gear 205 is rotatably connected with the upper transmission rod 204 through a pin, and the left end of the turntable gear is rotatably connected with the lower transmission rod 203 through a pin;

the motor 210 is fixed on the motor fixing plate 209, the motor driving part 208 is respectively connected with the motor 210 and the main lock transmission rack 202, and the main lock transmission rack 202 is driven to horizontally reciprocate by the forward and reverse rotation of the motor 210.

Preferably, the motor 210 is connected with a reduction gearbox, an output rod of the reduction gearbox is perpendicular to the motor fixing plate 209, the output rod of the reduction gearbox is linearly connected with the motor driving piece 208, and as shown in fig. 2, a vertical pin hole 2021 with a rectangular round angle is arranged in the middle of the main lock transmission rack 202; the structure of the motor driver 208 is shown in fig. 5, the motor driver 208 penetrates through the vertical pin hole 2021, and when the motor driver 208 rotates under the driving of the motor and the reduction gearbox, the main lock transmission rack 202 horizontally moves left and right through the connection effect of the vertical pin hole 2021.

The main lock 2 further comprises a cover plate 207, the cover plate 207 and the main lock bottom shell 201 form a main lock shell, and the meshing position of the turntable gear 205 and the main lock transmission rack 202 and the connecting position of the turntable gear 205, the lower transmission rod 203 and the upper transmission rod 204 are contained, so that the protection effect is achieved.

The main lock 2 further comprises a state sensor arranged on the main lock bottom case 201, the state sensor comprises a first sensor 206 and a second sensor 211, the structure of the turntable gear 205 is as shown in fig. 3, a first lug 2051 and a second lug 2052 are arranged at two ends of the edge of the turntable gear 205, and an included angle between each of the first lug 2051 and the second lug 2052 and a connecting line of a central axis of the turntable gear 205 is 90 degrees; the central axis of the turntable gear 205 is positioned on the same horizontal line with the first sensor 206 and the second sensor 211; the first sensor 206 and the second sensor 211 detect the positions of the first lug 2051 and the second lug 2052, respectively, and determine the open/close state of the cabinet door according to the rotation position of the dial gear 205.

The main lock 2 is fixed on the cabinet body through a main lock bottom plate 1 connected with a main lock bottom shell 201.

As shown in fig. 2, the main lock transmission rack 202 has a left end connected to the first stop lever 212 in the vertical direction and a right end connected to the bolt 14; the left end of the motor fixing plate 209 is connected with a second blocking rod 213 in the vertical direction.

The locking mechanism further comprises a mechanical lock, as shown in fig. 2, the mechanical lock comprises a lock cylinder 3 and a mechanical pick 4 fixedly connected with the lock cylinder 3, a key hole of the lock cylinder 3 is located on the back of the figure, and the mechanical pick 4 comprises a mechanical positioning piece 41 and a mechanical stop lever 42.

Preferably, the cabinet door locking mechanism further comprises a mechanical position sensor 5 arranged at the bottom of the locking mechanism, and the mechanical positioning piece 41 is matched with the mechanical position sensor 5 to indicate the opening and closing state of the cabinet door lock.

Preferably, the mechanical stop lever 42 is located between a first stop lever 212 at the left end of the main lock transmission rack 202 and a second stop lever 213 at the left end of the motor fixing plate 209, and the mechanical stop lever 42 pushes the first stop lever 212 to move leftward when moving leftward, and pushes the second stop lever 213 to move rightward when moving rightward, respectively.

As shown in fig. 1, the upper transmission rod 204 is connected to the main lock connecting rod 15, the main lock connecting rod 15 is connected to the top and bottom bolt, so as to eject and retract the top and bottom bolt, and when the top and bottom bolt is retracted, the cabinet door is popped open.

As a typical embodiment, when the mechanical key is unlocked, a set of structures for unlocking the upper and lower auxiliary locks is further provided, and specifically, as shown in fig. 1, the cabinet door locking mechanism provided by the present invention further includes a handle rack 9, a return spring 6, a handle rack guide post 12, a handle rotary disk 7, a handle gear 8, a handle rotary disk connecting rod 16 connected to the handle rotary disk 7, and a handle seat 13, a handle ring 11 and a handle rotary rod 10 located outside the main lock bottom plate 1; the handle rotary table 7 and the handle gear 8 are positioned in the main lock shell and are coaxially connected with a handle ring 11 and a handle rotary rod 10 outside the main lock shell, the handle rotary rod 10 is fixed on a handle seat 13, and the handle ring 11 is rotated and driven by the handle rotary rod 10 to rotate the handle rotary table 7; the handle rack 9 is provided with teeth meshed with the handle gear 8 at the position contacting with the handle gear 8; the handle rack 9 is also provided with a transverse guide hole 91, a slidable guide block 92 is arranged on the guide hole 91, and the guide block 92 is fixedly connected to the handle rack guide post 12, so that the handle rack 9 can be limited on the main lock bottom plate 1 in a left-right translational manner, and the front and back positions of the handle rack 9 are fixed; a raised stop block 93 is arranged at the contact position of the handle rack 9 and the lock cylinder, and the top end of the stop block 93 is a round angle; in a locking state, the blocking block 93 is positioned between the central shaft of the lock core and the mechanical stop lever and plays a role in blocking the handle rack 9; the right end of the reset spring 6 is fixed to the handle rack 9, and the left end of the reset spring is fixed to a mounting hole in the door panel of the cabinet door.

The structures are mainly that when a mechanical key is opened, the upper auxiliary lock and the lower auxiliary lock are opened, and the handle is automatically returned.

The mechanical key is inserted into the first lock cylinder 31 and the second lock cylinder 32 to rotate counterclockwise (at an angle in the direction of fig. 1), so that the mechanical stop lever 42 is driven to rotate upward, the mechanical stop lever 42 is rotated to a position above the stop block 93, and the stop function on the handle rack 9 is not provided. At this moment, the person of unblanking pulls up handle ring 11, rotates 10 handle bull sticks (be fixed in 13 handle seats), makes 10 handle bull sticks rotate to 70 degrees positions by horizontal position, drives 7 handle turntables and rotates, drives 9 handle rack forward (right) movements simultaneously, and then drives handle turntable 16 connecting rod motion, and pulling secondary lock opening structure opens upper and lower secondary lock. After the auxiliary lock is opened, the unlocking person loosens the handle ring 11, and due to the pulling of the reset spring 6, a pulling force exists, the handle rack 9 is pulled to move reversely, the handle gear 8 is driven to rotate, the handle rotating rod 10 is driven to overturn, and the handle rotating rod 11 automatically returns to the horizontal position.

The handle rack guide post 12 limits the handle rack 9 from left to right after the upper end of the handle rack guide post is provided with a screw, so that the handle rack 9 is not moved back and forth.

Example 2: cabinet door locking mechanism opened by double keys

The mechanical lock comprises two sets of lock cores 3 and mechanical shifting pieces 4 which are connected in series, namely the lock cores comprise a first lock core 31 and a second lock core 32, the mechanical positioning pieces 41 of the mechanical shifting pieces 4 comprise a first mechanical positioning piece 411 and a second mechanical positioning piece 412, the mechanical stop lever 42 comprises a first mechanical stop lever and a second mechanical stop lever, the first lock core 31 and the second lock core 32 are connected in series, the first mechanical positioning piece 411 is fixed on the first lock core 31, and the second mechanical positioning piece 412 is fixed on the second lock core 32;

the mechanical position sensors include a third sensor that detects the position of the first mechanical spacer 411 and a fourth sensor that detects the position of the second mechanical spacer 412.

The cabinet door locking mechanism further comprises a main control board, wherein the main control board is respectively connected with the first sensor, the second sensor, the third sensor, the fourth sensor and the motor, receives electric signals transmitted by the first sensor, the second sensor, the third sensor and the fourth sensor, and controls the positive and negative rotation of the motor.

In this embodiment, the main control board is an STC IAP15W413AS single chip microcomputer, purchased from shenzhen macrocrystal technology.

In the utility model, the first sensor, the second sensor, the third sensor and the fourth sensor are all comparison type photoelectric sensors, comprise infrared emission light projectors and photoelectric receiving devices, and generate different models and transmit the models to the main control panel through whether the infrared light path is blocked or not.

The working principle of the utility model is as follows:

(1) electric control lock

The main control board receives a door closing signal, detects whether a mechanical position sensor (when the mechanical position sensor is one, the state of one position sensor is detected, and when the mechanical position sensor comprises a third sensor and a fourth sensor, the two sensors are required to detect simultaneously) is in a locking state, if the mechanical position sensor is in an opening state, the door main control board drives a motor 210 of a main lock to rotate forwards, the motor 210 drives a main lock transmission rack 202 to move rightwards through a motor driving piece 208, so that a turntable gear 205 rotates anticlockwise, the main lock transmission rack 202 drives a cabinet door bolt 14 connected with the main lock transmission rack to move rightwards, the turntable gear 205 drives a main lock connecting rod 15 to move upwards through an upper transmission rod 204, and the main lock connecting rod 15 ejects out the top and bottom bolts.

The dial gear 205 rotates to enable the first protruding piece 2051 to be located between the first sensors 206, the first protruding piece 2051 shields the first sensors 206, the state sensors detect that the main lock is closed in place, the main control board stops driving the motor, and locking is completed.

If the mechanical position sensor is in the off state, the main control panel does nothing.

(2) Electrically controlled opening

The cabinet door main control board receives the door opening signal, and the main control board detects whether the mechanical position sensor is in an opening/photoresistance state. If the mechanical position sensor is in a closed state, the main control panel drives the motor 210 to rotate reversely, the motor 210 drives the main lock transmission rack 202 to translate leftwards and the turntable gear 205 to rotate clockwise through the motor driving part 208, the main lock transmission rack 202 drives the cabinet door bolt 14 to be folded, and the turntable gear drives the main lock connecting rod 15 to move downwards to drive the main lock connecting rod 15 to fold the top and bottom bolt.

The turntable gear 205 rotates to a position where the first protruding piece 2051 is located below, the second protruding piece 2052 is located between the second sensors 211, the second protruding piece 2052 shields the first sensors 211, the state sensors detect that the main lock is opened in place, and the main control board stops driving the motor to complete opening.

If the mechanical position sensor is in the on state, the main control board does nothing.

(3) Mechanical opening

In the embodiment 1, one mechanical key is inserted into the structure, in the embodiment 2, two mechanical keys are respectively inserted into the structure, the key is inserted into the lock cylinder 3 to rotate the key, the lock cylinder 3 rotates to drive the mechanical shifting piece 4 to rotate, and the mechanical stop lever 42 of the mechanical shifting piece 4 drives the main lock transmission rack 202 to move left, so that the cabinet door bolt 14 is driven to be recovered. Meanwhile, the main lock transmission rack 202 drives the motor 209 fixing plate and the motor 210 to integrally move left through the motor driving part 208; meanwhile, the main lock transmission rack 202 drives the turntable gear 205 to rotate clockwise, so as to drive the upper transmission rod 204 and the main lock connecting rod 15 to move downwards, the main lock connecting rod 15 packs the top bolt and the bottom bolt, the spring door device installed on the internal frame of the cabinet applies thrust to the cabinet door, and the cabinet door is opened automatically. The door springing device can be a cabinet door self-springing device, or the spring is fixedly arranged on the internal frame of the cabinet body, the other end of the spring is pushed against the cabinet door, and after the floor bolt loses the limiting effect on the cabinet door, the thrust of the spring enables the cabinet door to be bounced open. After the dial gear 205 is rotated, the second sensor 211 detects the position of the second tab 2052 on the dial gear 205 and the mechanical opening of the cabinet door lock is complete. Meanwhile, the light path of the mechanical position sensor is blocked by the mechanical positioning piece of the mechanical shifting piece, and the indication is in an opening state.

Specifically, the present embodiment provides a door springing device, as shown in fig. 7, including a door springing fixing seat 145, a door springing shaft 141 located inside the door springing fixing seat 145, a spring stop pin 142, a door springing spring 143, a guide sleeve 144, and a snap spring 146; the elastic door fixing seat 145 is perpendicular to the cabinet door and fixed on the cabinet body, through holes are formed in two axial ends of the elastic door fixing seat, the spring stop pin 142 is arranged on the elastic door shaft 141, an axial hollow groove is formed in the guide sleeve 144, the elastic door shaft 1 is placed inside the guide sleeve 144, the elastic door spring 143 is placed outside the guide sleeve 144, the spring stop pin 142 is clamped at one end of the elastic door spring 143, and the guide sleeve 144 is fixed inside the elastic door fixing seat 145 through clamp springs 146 at two ends; as shown in fig. 7, when the cabinet door is pressed downward by the top of the door-ejecting shaft 141, the door-ejecting shaft 141 moves downward relative to the door-ejecting fixing seat 145, and the door-ejecting spring 143 generates a reverse force, so that when the cabinet door loses its pushing force, the door-ejecting spring 143 ejects the cabinet door.

(4) Mechanical lock

The mechanical key is rotated, the mechanical lock core 3 drives the mechanical shifting piece 4 to rotate, the mechanical stop lever 42 on the mechanical shifting piece rotates anticlockwise to shift the mechanical stop lever 42 to drive the motor fixing plate 209 to move right, the motor fixing plate 209 drives the main lock transmission rack 202 to move right through the motor driving piece 208, the main lock transmission rack 202 drives the turntable gear 205 to rotate anticlockwise, the upper transmission rod 204 connected with the turntable gear 205 drives the main lock connecting rod 15 to move upwards, and the ground bolt is ejected out; the dial gear 205 is rotated until the first sensor 206 detects the first tab 2051 and the second sensor 211 is clear, and for the closed position, the mechanical closing of the cabinet door lock is complete. Meanwhile, the light path of the mechanical position sensor is not blocked by the mechanical positioning sheet of the mechanical shifting sheet and indicates a closed state.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A cabinet door locking mechanism is characterized by comprising a main lock, wherein the main lock comprises a main lock transmission rack, a turntable gear, a lower transmission rod, an upper transmission rod, a motor fixing plate and a motor driving piece, wherein the main lock transmission rack, the turntable gear, the lower transmission rod, the upper transmission rod, the motor fixing plate and the motor driving piece are arranged on a main lock bottom shell;

the rotary table gear is a semicircular rotary table with teeth and is rotatably fixed on the main lock bottom case through a central shaft, and the top of the main lock transmission rack is provided with teeth meshed with the rotary table gear;

the right end of the turntable gear is rotatably connected with the upper transmission rod through a pin shaft, and the left end of the turntable gear is rotatably connected with the lower transmission rod through a pin shaft;

the motor is fixed on the motor fixing plate, the motor driving piece is respectively connected with the motor and the main lock transmission rack, and the main lock transmission rack is driven to horizontally reciprocate under the driving of the forward and reverse rotation of the motor.

2. The cabinet door locking mechanism according to claim 1, wherein the motor is connected with a reduction gearbox, an output rod of the reduction gearbox is perpendicular to a motor fixing plate, the output rod of the reduction gearbox is linearly connected with a motor driving piece, and a vertical pin hole with a rectangular round angle is formed in the middle of the main lock transmission rack; the motor driving piece penetrates through the vertical pin hole, and when the motor driving piece rotates under the driving of the motor and the reduction gearbox, the main lock transmission rack horizontally moves left and right under the connecting action of the vertical pin hole;

the main lock also comprises a cover plate, the cover plate and the main lock bottom shell form a main lock shell, and the meshing position of the turntable gear and the main lock transmission rack, and the connecting position of the turntable gear and the lower transmission rod and the upper transmission rod are contained; the main lock is fixed on the cabinet body through a main lock bottom plate connected with a main lock bottom shell.

3. The cabinet door locking mechanism according to claim 2, wherein the main lock further comprises a status sensor disposed on the main lock bottom case, the status sensor comprises a first sensor and a second sensor, a first lug and a second lug are disposed at two ends of the edge of the rotary disc gear, and an included angle between each of the first lug and the second lug and a connecting line of a central axis of the rotary disc gear is 90 degrees; the central shaft of the turntable gear is positioned on the same horizontal line with the first sensor and the second sensor; the first sensor and the second sensor respectively detect the positions of the first lug and the second lug, and the opening and closing state of the cabinet door is judged through the rotating position of the turntable gear.

4. A cabinet door locking mechanism according to claim 3, wherein the main lock transmission rack has a left end connected to the first stop lever in the vertical direction and a right end connected to the door bolt; the left end of the motor fixing plate is connected with a second stop lever in the vertical direction.

5. A cabinet door locking mechanism according to claim 4, wherein the locking mechanism further comprises a mechanical lock, the mechanical lock comprises a lock cylinder and a mechanical paddle fixedly connected with the lock cylinder, and the mechanical paddle comprises a mechanical positioning plate and a mechanical stop lever.

6. The cabinet door locking mechanism according to claim 5, further comprising a mechanical position sensor disposed at a bottom of the locking mechanism, wherein the mechanical positioning plate cooperates with the mechanical position sensor to indicate an open/close state of the cabinet door.

7. A cabinet door locking mechanism according to claim 6, wherein the mechanical stop lever is located between a first stop lever at the left end of the main lock transmission rack and a second stop lever at the left end of the motor fixing plate, the mechanical stop lever pushes the first stop lever to move leftward when moving leftward, and the mechanical stop lever pushes the second stop lever to move rightward when moving rightward;

the upper transmission rod is connected with the main lock connecting rod, the main lock connecting rod is connected with the top and bottom bolt, the lifting of the main lock connecting rod realizes the ejection and the packing up of the top and bottom bolt, and when the top and bottom bolt is packed up, the cabinet door lock is flicked.

8. The cabinet door locking mechanism according to claim 7, further comprising a handle rack, a return spring, a handle rack guide post, a handle turntable, a handle gear, a handle turntable connecting rod connected to the handle turntable, and a handle seat, a handle ring and a handle rotating rod located outside the main lock bottom plate, which are disposed below the main lock and the mechanical lock; the handle rotating disc and the handle gear are positioned in the main lock shell and are coaxially connected with a handle ring and a handle rotating rod outside the main lock shell, the handle rotating rod is fixed on the handle seat, and the handle rotating disc is driven to rotate by the handle rotating rod when the handle ring rotates; the contact position of the handle rack and the handle gear is provided with teeth meshed with the handle gear; the handle rack is also provided with a transverse guide hole, a slidable guide block is arranged on the guide hole, and the guide block is fixedly connected to a handle rack guide post, so that the handle rack is limited on the main lock bottom plate in a left-right translational manner, and the front position and the rear position of the handle rack are fixed; a raised blocking block is arranged at the contact position of the handle rack and the lock cylinder, and the top end of the blocking block is a round angle; in a locking state, the blocking block is positioned between the central shaft of the lock core and the mechanical stop lever and plays a role in blocking the handle rack; the right end of the reset spring is fixed to the handle rack, and the left end of the reset spring is fixed to a mounting hole in the door panel of the cabinet door.

9. The cabinet door locking mechanism according to claim 8, wherein the mechanical lock comprises two sets of lock cylinders and mechanical tumblers connected in series, each lock cylinder comprises a first lock cylinder and a second lock cylinder, each mechanical tumbler of the mechanical tumblers comprises a first mechanical tumbler and a second mechanical tumbler, each mechanical stop comprises a first mechanical stop and a second mechanical stop, the first lock cylinder is connected in series with the second lock cylinder, the first mechanical tumblers are fixed to the first lock cylinder, and the second mechanical tumblers are fixed to the second lock cylinder;

the mechanical position sensor comprises a third sensor and a fourth sensor, the third sensor detects the position of the first mechanical locating piece, and the fourth sensor detects the position of the second mechanical locating piece.

10. The cabinet door locking mechanism according to claim 9, further comprising a main control board, wherein the main control board is connected to the first sensor, the second sensor, the third sensor, the fourth sensor, and the motor, respectively, and receives electrical signals transmitted from the first sensor, the second sensor, the third sensor, and the fourth sensor to control the forward and reverse rotation of the motor;

the first sensor, the second sensor, the third sensor and the fourth sensor are all comparison type photoelectric sensors, comprise infrared emission light projectors and photoelectric receiving devices, and generate different models and transmit the models to the main control panel through whether the infrared light path is blocked or not.

Images