Electronic coded lock device of chemical cabinet

Abstract

The utility model relates to the field of coded locks, and discloses an electronic coded lock device of a chemical cabinet, which is characterized by comprising a shell mounting seat, a front panel and a lock catch plate, the front panel is provided with a first mounting hole and a second mounting hole in a penetrating manner, a code keyboard is arranged in the first mounting hole, and a mechanical lock is arranged in the second mounting hole; an extension ring is arranged on the side, facing the shell mounting base, of the lock catch plate, a spring bolt capable of movably locking or releasing the extension ring is arranged at the position, corresponding to the extension ring, in the shell mounting base, and a gear motor, a gear shifting piece, a pushing plate and a control mainboard are further arranged in the shell mounting base. The pushing plate is connected with the spring bolt, one end of the gear shifting piece is used for moving the pushing plate, the other end of the gear shifting piece is meshed with a driving gear arranged at the output end of the gear motor, and the control mainboard is connected with the gear motor and the password keyboard. And a lock shifting piece is arranged on the inner side of the mechanical lock and is also used for moving the position of the pushing plate.

Description

Technical Field

[0001] The utility model relates to the field of password locks, and more specifically, to an electronic password lock device for a chemical cabinet. Background Art

[0002] At present, the inventory of chemical storage cabinets in enterprises and institutions is very large, especially in the laboratories of various universities. The existing chemical cabinets have strict scrapping age.

[0003] As the country's requirements for hazardous chemicals management become increasingly stringent, chemical cabinets are only used as storage tools and can no longer meet the management needs of various units for hazardous chemicals. In order to better manage hazardous chemicals, smart locks can be integrated on the basis of existing hazardous chemical cabinets. The intelligent transformation of chemical cabinets can not only achieve the same management effect as intelligent hazardous chemical cabinets, but also greatly save expenses and maximize the use of existing assets.

[0004] Therefore, in order to achieve the above purpose, it is necessary to design a chemical cabinet smart lock that can be easily modified and installed based on the existing chemical cabinet. Utility Model Content

[0005] The utility model aims to provide an electronic password lock device for a chemical cabinet, which adopts two locking modes and can be selected according to actual needs, so as to facilitate the actual modification of the chemical cabinet.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions: an electronic password lock device for a chemical cabinet, comprising a shell mounting seat, a front panel and a lock plate, wherein the shell mounting seat is mounted on the cabinet door of the chemical cabinet, the lock plate is mounted on the cabinet body of the chemical cabinet, the front panel is fixedly mounted on the front opening of the shell mounting seat, and the lock plate is arranged outside the shell mounting seat; the front panel is penetrated by a first mounting hole and a second mounting hole, the first mounting hole is provided with a password keypad, and the second mounting hole is provided with a mechanical lock;

[0007] The lock plate is provided with an extension ring on one side facing the shell mounting seat, and the extension ring extends into the interior of the shell mounting seat, and the interior of the shell mounting seat is provided with a lock tongue that can movably lock or release the extension ring at a position corresponding to the extension ring, and the shell mounting seat is also provided with a reduction motor, a gear paddle, a push plate, and a control main board; the push plate is connected to the lock tongue, one end of the gear paddle is used to move the position of the push plate, and the other end of the gear paddle is meshed with a driving gear provided at the output end of the reduction motor, and the control main board is respectively connected to the reduction motor and the password keypad;

[0008] A lock paddle is arranged on the inner side of the mechanical lock, and the lock paddle is also used to move the position of the push plate.

[0009] As a preferred technical solution of the utility model, the key side of the password keyboard is arranged on the outer side of the front panel, and the inner side of the password keyboard is connected to the control main board.

[0010] As a preferred technical solution of the utility model, a battery box is also provided inside the shell mounting seat, and the battery box is electrically connected to the reduction motor, the control main board, and the password keypad; a wired power supply module is also provided inside the shell mounting seat, and the wire socket of the wired power supply module is arranged on the outside of the front panel, and the wired power supply module is electrically connected to the reduction motor, the control main board, and the password keypad respectively.

[0011] As a preferred technical solution of the utility model, a reset spring connected to the lock tongue is arranged in the shell mounting seat, and the reset spring is used to apply a force to the lock tongue to lock the extension ring when the lock tongue is not actively exerted by the push plate.

[0012] As a preferred technical solution of the utility model, a C-shaped groove is provided on one side of the push plate facing the lock paddle and the gear paddle. The lock paddle and the gear paddle rotate at an angle in the C-shaped groove, which will drive the push plate to move in position.

[0013] As a preferred technical solution of the present utility model, a micro switch is arranged inside the C-shaped groove of the push plate, and the micro switch is connected to the control main board to stop the movement of the reduction motor.

[0014] As a preferred technical solution of the utility model, a Hall element is arranged in the shell mounting seat, a magnet is arranged on the lock plate at a position corresponding to the Hall element, the Hall element is triggered by the magnet, and the Hall element is connected to the control main board.

[0015] As a preferred technical solution of the utility model, a rotating hole is provided in the middle of the gear paddle and the lock paddle, a rotating shaft matching the rotating hole is provided in the shell mounting seat, and the rotating holes of the gear paddle and the lock paddle are rotatably sleeved on the outside of the rotating shaft.

[0016] In summary, the utility model has the following beneficial effects: in actual use, the housing mounting seat is set on the door panel of the chemical cabinet, and the lock plate is installed on the cabinet body of the chemical cabinet. When it is in a locked state, the correct password can be entered by pressing the password on the keyboard. At this time, the control mainboard responds and controls the reduction motor to work, that is, drives the driving gear to rotate clockwise. Due to the meshing of the gear paddle and the driving gear, the gear paddle will be driven to rotate counterclockwise, and then the push plate will be driven to move downward, and the lock tongue will also move downward and disengage from the extension ring to complete the release of the lock plate. At this time, the corresponding cabinet door can be opened. The cabinet door can also be opened by unlocking the mechanical lock. By turning the lock core of the mechanical lock with the key, the lock paddle can be driven to rotate at an angle. When the lock paddle rotates, it will drive the push plate to move downward, that is, the lock tongue will also move downward, and the release of the lock plate will be completed. If the key is turned back to its original position, the lock tongue will move upward under the action of the reset spring to lock the lock plate to achieve the purpose of locking the door. The entire electronic password lock device adopts two locking methods, that is, the chemical cabinet can be opened and locked in two ways. It can be selected according to actual needs, which is convenient for the actual modification and use of the chemical cabinet, so that the chemical cabinet can obtain electronic management function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the locked state of the utility model;

[0019] Figure 3 This is a schematic diagram of the state of the utility model being opened by pressing the keyboard with a password;

[0020] Figure 4 This is a schematic diagram of the utility model being opened by a mechanical lock;

[0021] Figure 5 It is a schematic diagram of the installation of the electronic password lock device of the utility model.

[0022] In the figure: 1. Shell mounting base; 2. Front panel; 3. Lock plate; 4. Password keypad; 5. Mechanical lock; 6. Extension ring; 7. Lock tongue; 8. Reducer motor; 9. Gear paddle; 10. Push plate; 11. Drive gear; 12. Lock paddle; 13. Battery box; 14. Reset spring; 15. C-shaped slot; 16. Micro switch; 17. Hall element; 18. Wired power supply module. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] like Figure 1-5 As shown, the utility model provides an electronic password lock device for a chemical cabinet, comprising a shell mounting seat 1, a front panel 2 and a lock plate 3, wherein the shell mounting seat 1 is mounted on the cabinet door of the chemical cabinet, the lock plate 3 is mounted on the cabinet body of the chemical cabinet, the front panel 2 is fixedly mounted on the front opening of the shell mounting seat 1, and the lock plate 3 is arranged outside the shell mounting seat 1; the front panel 2 is provided with a first mounting hole and a second mounting hole, a password keyboard 4 is arranged in the first mounting hole, the key side of the password keyboard 4 is arranged on the outside of the front panel 2, and the inner side of the password keyboard 4 is connected to the control main board, wherein all control circuit components are integrated on the control main board, and are used to realize the unlocking and locking control of the entire electronic password lock, which belongs to the commonly used circuit application in the prior art, so it is not repeated here, and a mechanical lock 5 is arranged in the second mounting hole;

[0025] An extension ring 6 is provided on the side of the lock plate 3 facing the housing mounting seat 1, and the extension ring 6 extends into the interior of the housing mounting seat 1. A lock tongue 7 that can movably lock or release the extension ring 6 is arranged in the interior of the housing mounting seat 1 at a position corresponding to the extension ring 6. A reduction motor 8, a gear paddle 9, a push plate 10, and a control main board are also provided inside the housing mounting seat 1; the push plate 10 is connected to the lock tongue 7, one end of the gear paddle 9 is used to move the position of the push plate 10, and the other end of the gear paddle 9 is meshed with a driving gear 11 provided at the output end of the reduction motor 8, and the control main board is respectively connected to the reduction motor 8 and the password keypad 4;

[0026] One end of the gear paddle 9 is in a ratchet shape, which is used to mesh with the driving gear 11 at the output end of the reduction motor 8. The other end of the gear paddle 9 extends out of the C-shaped groove 15 of the push plate 10. When the gear paddle 9 rotates, the end thereof disposed in the C-shaped groove 15 will change position, which will move the push plate 10 up and down, thereby realizing the movement of the position of the lock tongue 7.

[0027] A lock paddle 12 is arranged on the inner side of the mechanical lock 5, and the lock paddle 12 is also used to move the position of the push plate 10. A rotating hole is arranged in the middle of the gear paddle 9 and the lock paddle 12, and a rotating shaft matching the rotating hole is arranged in the shell mounting seat 1, and the rotating holes of the gear paddle 9 and the lock paddle 12 are both rotatably sleeved on the outer side of the rotating shaft.

[0028] A C-shaped groove 15 is provided on one side of the push plate 10 facing the lock paddle 12 and the gear paddle 9 . The lock paddle 12 and the gear paddle 9 rotate at an angle in the C-shaped groove 15 , which will drive the push plate 10 to move.

[0029] Specifically, the reduction motor 8 is a DC motor, and the forward and reverse rotation of the gear can be controlled by changing the direction of the current.

[0030] The working principle and use process of the electronic password lock device of the utility model are as follows: Figure 2-4 As shown, in actual use, the housing mounting base 1 is set on the door panel, and the lock plate 3 is installed on the cabinet. When in the locked state, as shown in FIG. Figure 3 As shown, the correct password can be input through the password keyboard 4, and the control main board responds, controlling the reduction motor 8 to work, that is, driving the driving gear 11 to rotate clockwise. Due to the meshing of the gear paddle 9 and the driving gear 11, the gear paddle 9 will be driven to rotate counterclockwise, and then the push plate 10 will be driven to move downward, and the lock tongue 7 will also move downward and disengage from the extension ring 6, completing the release of the lock plate 3, and the corresponding cabinet door can be opened at this time. Figure 4 As shown, the cabinet door can also be opened by unlocking the mechanical lock 5. By turning the lock cylinder of the mechanical lock 5 with a key, the lock pick 12 can be driven to rotate at an angle. When the lock pick 12 rotates, the push plate 10 will be driven to move downward, that is, the lock tongue 7 will also move downward, completing the release of the lock plate 3. If the key is turned back to its original position, the lock tongue 7 will move upward under the action of the reset spring 14 to lock the lock plate 3 to achieve the purpose of locking the door. The entire electronic password lock device adopts two locking methods, that is, the chemical cabinet can be opened and locked in two ways, which can be selected according to actual needs, which is convenient for the actual chemical cabinet to be modified and used, so that the chemical cabinet has an electronic management function.

[0031] Specifically, a battery box 13 is also provided inside the shell mounting base 1, and the battery box 13 is electrically connected to the reduction motor 8, the control mainboard, and the password keypad 4; the battery box 13 generally uses a lithium battery, which is small in size and has a long battery life, and can serve the operation of the electronic password lock for a long time. A wired power supply module 18 is also provided inside the shell mounting base 1, and the wire socket of the wired power supply module 18 is provided on the outside of the front panel 2. The wired power supply module 18 is electrically connected to the reduction motor 8, the control mainboard, and the password keypad 4 respectively. When the battery box 13 is exhausted, it can be powered directly through the wired charging module to ensure that when the battery box 13 is out of power, it can also support the normal use of the password lock. The general wired power supply module 18 adopts a type-c power supply module, and can also be connected to other power supply devices through the data cable of the type-c port to drive the operation of the electronic lock.

[0032] Specifically, a reset spring 14 connected to the lock tongue 7 is arranged in the shell mounting base 1. The reset spring 14 is used to apply a force to the lock extension ring 6 to the lock tongue 7 when the lock tongue 7 is not actively exerted by the push plate 10. That is to say, the reset spring 14 is compressed and accumulates force during the entire unlocking process. When the lock body itself is not subjected to the unlocking force, the position of the lock tongue 7 can be restored by releasing the accumulated elastic force, thereby realizing automatic locking of the combination lock.

[0033] As an embodiment of the present invention, a Hall element 17 is arranged in the shell mounting base 1, and a magnet is arranged at a position corresponding to the Hall element 17 on the lock plate 3. The Hall element 17 is triggered by the magnet. The Hall element 17 is connected to the control main board. In actual application, if the door is closed, the Hall element 17 will sense the magnet on the lock plate 3, and the Hall element 17 will transmit a signal to the control main board to make the reduction motor 8 rotate counterclockwise, and the lock tongue 7 will move upward under the action of the reset spring 14 to lock the lock plate 3 to achieve the purpose of locking the door.

[0034] A micro switch 16 is arranged on the inner side of the C-shaped groove 15 of the push plate 10. The micro switch 16 is connected to the control main board and is used to stop the movement of the reduction motor 8. The micro switch 16 is provided with a very fine fixed contact and moving contact structure. When the gear paddle 9 or the lock paddle 12 moves to the position of the micro switch 16, the fixed contact and the moving contact of the micro switch 16 will be quickly connected or disconnected, thereby realizing the action triggering of the reduction motor 8.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electronic password lock device for a chemical cabinet, characterized by: The chemical cabinet comprises a housing mounting seat (1), a front panel (2) and a locking plate (3), wherein the housing mounting seat (1) is mounted on a cabinet door of a chemical cabinet, the locking plate (3) is mounted on a cabinet body of the chemical cabinet, the front panel (2) is fixedly mounted on a front opening of the housing mounting seat (1), and the locking plate (3) is arranged outside the housing mounting seat (1); a first mounting hole and a second mounting hole are arranged through the front panel (2), a password keypad (4) is arranged in the first mounting hole, and a mechanical lock (5) is arranged in the second mounting hole; An extension ring (6) is arranged on one side of the lock plate (3) facing the shell mounting seat (1), and the extension ring (6) extends into the interior of the shell mounting seat (1). A lock tongue (7) which can movably lock or release the extension ring (6) is arranged in the interior of the shell mounting seat (1) at a position corresponding to the extension ring (6). A reduction motor (8), a gear paddle (9), a push plate (10), and a control main board are also arranged in the interior of the shell mounting seat (1); the push plate (10) is connected to the lock tongue (7), one end of the gear paddle (9) is used to move the position of the push plate (10), and the other end of the gear paddle (9) is meshed with a driving gear (11) arranged at the output end of the reduction motor (8), and the control main board is respectively connected to the reduction motor (8) and the password keypad (4); A lock paddle (12) is provided on the inner side of the mechanical lock (5), and the lock paddle (12) is also used to move the position of the push plate (10).

2. The electronic password lock device for a chemical cabinet according to claim 1 is characterized in that: The key side of the password keyboard (4) is arranged on the outside of the front panel (2), and the inside of the password keyboard (4) is connected to the control main board.

3. The electronic password lock device for a chemical cabinet according to claim 2 is characterized in that: A battery box (13) is also provided inside the shell mounting seat (1), and the battery box (13) is electrically connected to the reduction motor (8), the control main board, and the password keypad (4); a wired power supply module (18) is also provided inside the shell mounting seat (1), and the wire socket of the wired power supply module (18) is arranged on the outside of the front panel (2), and the wired power supply module (18) is electrically connected to the reduction motor (8), the control main board, and the password keypad (4) respectively.

4. The electronic password lock device for a chemical cabinet according to claim 3 is characterized in that: A return spring (14) connected to the lock tongue (7) is arranged in the housing mounting seat (1), and the return spring (14) is used to apply a force to the lock tongue (7) to lock the extension ring (6) when the lock tongue (7) is not actively exerted by the push plate (10).

5. The electronic password lock device for a chemical cabinet according to claim 4 is characterized in that: A C-shaped groove (15) is provided on one side of the push plate (10) facing the lock paddle (12) and the gear paddle (9); the lock paddle (12) and the gear paddle (9) rotate at an angle in the C-shaped groove (15), thereby driving the push plate (10) to move in position.

6. The electronic password lock device for a chemical cabinet according to claim 5 is characterized in that: A micro switch (16) is arranged inside the C-shaped groove (15) of the push plate (10), and the micro switch (16) is connected to the control main board and is used to stop the movement of the reduction motor (8).

7. The electronic password lock device for a chemical cabinet according to claim 6 is characterized in that: A Hall element (17) is arranged in the housing mounting seat (1), a magnet is arranged on the locking plate (3) at a position corresponding to the Hall element (17), the Hall element (17) is triggered by the magnet, and the Hall element (17) is connected to the control main board.

8. The electronic password lock device for a chemical cabinet according to claim 6 is characterized in that: The gear paddle (9) and the lock paddle (12) are both provided with a rotation hole in the middle, a rotating shaft matching the rotation hole is provided in the housing mounting seat (1), and the rotation holes of the gear paddle (9) and the lock paddle (12) are both rotatably sleeved on the outside of the rotating shaft.

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