CN205400314U - Secret emergency exit tool to lock - Google Patents

Abstract

The utility model discloses a security door lock, which includes a mechanical lock and further includes: a locking mechanism for restricting the opening of the mechanical lock; a fingerprint collector for collecting fingerprint patterns; a password input module for inputting passwords for unlocking; The main control module is used to compare the received fingerprint pattern with the preset fingerprint pattern, and compare the received unlock password with the preset password, when it is judged that the fingerprint pattern is consistent with the preset fingerprint pattern and/or the unlock password When the password is consistent with the preset password, the restricted unlocking mechanism is controlled to release the restriction on the mechanical lock, and the main control module is electrically connected with the fingerprint collector, the password input module and the restricted unlocking mechanism respectively. The utility model has good safety.

Description

security door lock

technical field

The utility model belongs to a lockset, in particular to a security door lockset.

Background technique

Most of the existing mechanical locks or electronically controlled locks (that is, mechanical lock devices controlled by relays) rely on mechanical keys to control the movement of the lock cylinder, so as to achieve the purpose of opening the lock. It is still widely used because of its cheap price. But because the keyhole of lock is exposed outside, generally just can be opened by borrowing simple tool, so there is certain potential safety hazard.

In order to improve the security of lockset, people have developed combination lockset and fingerprint lockset again. As disclosed in CN202266115U, "an electronic intelligent anti-theft door" includes a door body and a mechanical lock and an electronic lock installed on the door body. There is a key hole in the middle of the lock cylinder, and a slot is provided on the side wall of the lock cylinder. The electronic lock includes an electromagnet, a control chip and a password receiving device, and the electromagnet is provided with a movable lock corresponding to the slot on the lock cylinder. Tongue, the electromagnet is connected with the password receiving device through the control chip. This patent not only sets up a mechanical lock, but also sets up an electronic lock for locking the mechanical lock. Therefore, only by opening the electronic lock first and unlocking the mechanical lock can the mechanical lock be further opened, so that it has the security of the electronic lock at the same time. The advantages of safety and not easy to be deciphered, as well as the advantages of firmness and tamper resistance of mechanical locks, thus realizing the double insurance function, greatly improving the safety and reliability of anti-theft doors. Another example is the "fingerprint lock" disclosed by CN102393978A, comprising: a base; a control circuit board fixed in the base; a fingerprint circuit board mounted on the control circuit board, electrically connected to it and having a fingerprint identification area; rotating and mounted on the base and A locking hook that can selectively move axially relative to the base; and a driving mechanism that selectively prevents the axial movement of the locking hook under the control of the control circuit board. The fingerprint circuit board is set to record the user's fingerprint pattern when the user puts the finger on the top of the fingerprint identification area, and transmits the fingerprint pattern to the control circuit board; the control circuit board compares the received fingerprint pattern with the predetermined fingerprint pattern, and when judging When the two are consistent, the control drive mechanism releases the restriction on the axial movement of the lock hook; otherwise, the control drive mechanism continues to restrict the axial movement of the lock hook. Due to the uniqueness of the fingerprint, the lock can only be opened if the fingerprint is compared successfully, which greatly improves the security and reliability of the anti-theft door.

However, the security of the above two locks still cannot meet the high-level requirements, such as important places for the military, storage of confidential documents, important cultural relics protection places, places for storing confidential files, databases of military industrial units, and places with high-level confidentiality requirements. Security level requirements for locks on doors.

Contents of the invention

The purpose of the utility model is to provide a security door lock to improve security.

The security safety door lock set described in the utility model includes a mechanical lock set, and also includes:

A locking mechanism for limiting the opening of mechanical locks;

A fingerprint collector for collecting fingerprint patterns;

A password input module for inputting an unlock password;

It is used to compare the received fingerprint pattern with the preset fingerprint pattern, and compare the received unlock password with the preset password. When it is judged that the fingerprint pattern is consistent with the preset fingerprint pattern and/or the unlock password is the same as the preset password When consistent, the main control module that controls the restriction unlocking mechanism to release the restriction on the mechanical lockset is electrically connected to the fingerprint collector, the password input module, and the restriction unlocking mechanism respectively.

The limiting unlocking mechanism includes a guide seat, a limit block, a linear motor, a motor drive module and a limit groove, the limit groove is arranged on any part of the lock that is displaced when the lock is opened, and the guide seat is installed on the lock Above, the limit block is connected to the output shaft of the linear motor, and the linear motor drives the limit block to slide along the guide seat, so that the limit block is disengaged/inserted into the limit slot;

The motor drive module is respectively connected with the main control module and the linear motor, and when the main control module judges that the fingerprint pattern is consistent with the preset fingerprint pattern and/or the unlocking password is consistent with the preset password, the linear motor is controlled to drive the limit block to move, The limit block is disengaged from the limit slot, so as to release the restriction on the mechanical lock.

The mechanical lock includes a lock cylinder, a lock case, a main bolt, a heaven and earth lock hook, a bolt, a main transmission wheel, a slave transmission wheel, a lever limit pin, a lever, a connecting rod, a main bolt transmission plate, an outer handle and an inner handle;

The lever limit pin is installed on the lock case parallel to the lock case through the rotating shaft, and can rotate relative to the lock case with the rotating shaft as the fulcrum;

There is a notch corresponding to the lever limit pin on the left part of the main bolt transmission plate.

The lever is installed on the lock case parallel to the lock case through the rotating shaft, and can rotate relative to the lock case with the rotating shaft as the fulcrum, and the rotation of the lever can drive the lever limit pin to escape/insert into the gap;

One end of the inner handle is fixedly installed on the lock case;

One end of the outer handle extends into the lock housing to connect with the main transmission wheel, the main transmission wheel meshes with the secondary transmission wheel, and a long groove is arranged on the main bolt transmission plate, and the rotating shaft of the secondary transmission wheel is located in the long groove Among them, one end of the connecting rod is connected with the slave transmission wheel, and a chute is provided on the main deadbolt transmission plate, and the other end of the connecting rod extends into the chute and slidably fits with the chute, and the main dead bolt drives The right side of the plate is connected with the main bolt. When the lever limit pin comes out of the gap, manipulate the outer handle to make the main transmission wheel rotate. The main transmission wheel drives the slave transmission wheel to rotate, and the slave transmission wheel drives through the connecting rod and the main bolt transmission plate The master bolt moves left/right so that the head of the master bolt retracts/extends the lock housing.

The limiting groove is arranged on the hook of the sky and earth lock, and the limiting block is located on the left side of the hook of the sky and earth lock.

Also includes an alarm module, the alarm module is connected with the main control module, when the main control module judges that the fingerprint pattern is inconsistent with the preset fingerprint pattern and/or the unlocking password is inconsistent with the preset password, the main control module drives the alarm module to perform Audible alarm.

It also includes a bolt state detection switch and a main bolt state detection switch arranged in the lock housing; when the main bolt is in an open state, the main bolt state detection switch is in contact with the main bolt; when the bolt is in a closed state, the bolt The state detection switch is in contact with the latch bolt, and the latch bolt state detection switch and the main dead bolt state detection switch are respectively electrically connected to the main control module. The main dead bolt state detection switch detects that the main dead bolt is in an open state, and the When the latch bolt state detection switch detects that the latch bolt is in the closed state and the duration reaches the preset time, the main control module drives the alarm module to give an audible and visual alarm; to prevent the door from being forgotten to lock the main bolt or people being locked inside the room .

It also includes a communication module, which is electrically connected to the main control module, is connected to the management center through the communication module, and uploads the alarm information to the management center.

The utility model has the following advantages:

(1) Use three-party authentication to open the lock, and no one party alone can open the lock. Only fingerprint + mechanical key, or password + mechanical key, or fingerprint + mechanical key + password can open the lock, and an alarm signal will be generated when the fingerprint + mechanical key or password + mechanical key is opened to remind customers of illegal intrusion suspicion, greatly improving security.

(2) All opening actions of the locks have information records, and there are alarm reminders for abnormal vibration of the door and mechanical key not pulled out of the lock hole.

(3) Adopt local sound and light alarm + wired upload management center to ensure the safety and effectiveness of alarm information and deterrence function, and protect the safety of customers' items to the greatest extent.

(4) It can prevent the door from forgetting to lock the main bolt or people being locked inside the room.

Description of drawings

Fig. 1 is the functional block diagram of the security safety door lockset described in the utility model;

Fig. 2 is a schematic structural view of the utility model in a semi-open state;

Fig. 3 is a schematic structural view of the utility model in a closed state;

Fig. 4 is a structural schematic diagram of the utility model in a fully opened state;

In the figure: 1. Guide seat, 2. Limit block, 3. Linear motor, 4. Latch bolt state detection switch, 5. Main bolt state detection switch, 6. Lock cylinder, 7. Lock housing, 8. Main lock Tongue, 9, world lock hook, 10, oblique tongue, 11, main drive wheel, 12, slave drive wheel, 13, lever limit pin, 14, lever, 15, connecting rod, 16, main dead bolt transmission plate, 16a , long slot, 16b, gap, 16c, chute, 17, motor drive module, 18, main control module, 19, alarm module, 20, restriction unlocking mechanism, 21, fingerprint collector, 22, password input module, 23, Power module, 24, communication module.

detailed description

Below in conjunction with accompanying drawing, the utility model is further described.

The security safety door lockset as shown in Figure 1 comprises mechanical lockset, restriction unblanking mechanism 20, fingerprint collector 21, password input module 22 and power supply module 23; Restriction unblanking mechanism 20 is used to limit the unlatching of mechanical lockset; for collecting fingerprint patterns; the password input module 22 is used for inputting the unlock password; the main control module 18 is used for comparing the received fingerprint pattern with the preset fingerprint pattern, and comparing the received unlock password with the preset password, when When it is judged that the fingerprint pattern is consistent with the preset fingerprint pattern and/or the unlocking password is consistent with the preset password, the control restricts the unlocking mechanism 20 to release the restriction on the mechanical lock. The limit unlocking mechanism 20 is electrically connected; the power supply module 23 supplies power for each module.

As shown in Figures 2 to 4, the mechanical lock includes a lock cylinder 6, a lock case 7, a main bolt 8, a heaven and earth lock hook 9, an oblique tongue 10, a main drive wheel 11, a slave drive wheel 12, a lever limit pin 13, Lever 14, connecting rod 15, main dead bolt transmission plate 16, outer handle and inner handle. The lever limit pin 13 is installed on the lock case 7 parallel to the lock case 7 through a rotating shaft, and can rotate relative to the lock case 7 with the rotating shaft as a fulcrum. On the upper side of the left part of the main bolt transmission plate 16, there is a notch 16b correspondingly matched with the lever limit pin 13. The lever 14 is installed on the lock housing 7 through a rotating shaft parallel to the lock housing 7, and can rotate relative to the lock housing 7 with the rotating shaft as a fulcrum. The rotation of the lever 14 can drive the lever limit pin 13 to escape/insert into the gap 16b . One end of the inner handle is fixedly mounted on the lock case 7 . One end of the outer handle stretches into the lock housing 7 and is connected with the main transmission wheel 11, and the main transmission wheel 11 is engaged with the secondary transmission wheel 12, and a long groove 16a is provided on the main deadbolt transmission plate 16, and the secondary transmission wheel The rotating shaft of 12 is positioned in this elongated groove 16a, and one end of described connecting rod 15 is connected with slave transmission wheel 12, is provided with chute 16c on main bolt transmission plate 16, and the other end of connecting rod 15 stretches into this chute 16c and slidingly fit with the chute 16c, the right side of the main deadbolt transmission plate 16 is connected with the main deadbolt 8, when the lever limit pin 13 is out of the gap 16b, the outer handle is manipulated to rotate the main transmission wheel 11, and the main transmission The wheel 11 drives the secondary transmission wheel 12 to rotate, and the secondary transmission wheel 12 drives the main bolt 8 to move left/right through the connecting rod 15 and the main bolt transmission plate 16, so that the head of the main bolt 8 retracts/extrudes from the lock housing 7.

As shown in Figures 1 to 4, the limiting unlocking mechanism 20 includes a guide seat 1, a limiting block 2, a linear motor 3, a motor drive module 17, and a limiting groove 9a provided on the left side of the sky lock hook 9, the guiding The seat 1 is installed on the lock housing 7 corresponding to the limit groove 9a, the limit block 2 is connected with the output shaft of the linear motor 3, and the linear motor 3 drives the limit block 2 to slide left and right along the guide seat 1, so that the limit block 2 out of/inserted into the limiting slot 9a. The motor drive module 17 is connected with the main control module 18 and the linear motor 3 respectively, and when the main control module 18 judges that the fingerprint pattern is consistent with the preset fingerprint pattern and/or the unlocking password is consistent with the preset password, the linear motor 3 is controlled to drive The limiting block 2 moves to the left, so that the limiting block 2 escapes from the limiting groove 9a, so as to release the restriction on the mechanical lock.

As shown in Figure 1, the security safety door lockset described in the utility model also includes an alarm module 19, and the alarm module 19 is connected with the main control module 18, and the main control module 18 judges that the fingerprint pattern is inconsistent with the preset fingerprint pattern and/or Or when the unlock password is inconsistent with the preset password, the main control module 18 drives the alarm module 19 to give an audible and visual alarm.

The utility model adds a guide seat 1, a limit block 2, a linear motor 3, a slant tongue state detection switch 4, a main deadbolt state detection switch 5 on the basis of the existing mechanical lockset, and a lock hook 9 arranged on the sky and earth lock. The limit groove 9a makes it realize the following technical functions. The guide seat 1 is fixed on the lock case 7. When the main bolt state detection switch 5 is turned on (that is, the main bolt 8 extends into the door frame), the lock (when the lock is closed and locked) The outer handle of the handle is lifted, the main dead bolt 8 stretches out, the lockset is in the closed state, and the lever stop pin 13 automatically falls into the gap 16b under the action of the spring to prevent the lockset from being opened. Simultaneously, the heaven and earth lock hook 9 moves downward, and when the limit slot 9a is aligned with the position center of the limit block 2, the time delay is 3 to 5 seconds, and the main control module 18 controls the motor drive module 17 to drive the linear motor 3 to rotate counterclockwise, driving The limit block 2 moves to the right into the limit slot 9a of the world lock hook 9 (into 3mm), and the lock is in a closed state at this time, because the limit block 2 is stuck on the world lock hook 9, at this time insert the mechanical key into the lock Core 6 also cannot open the lock.

The security safety door lock set described in the utility model also includes a communication module 24, which is electrically connected with the main control module 18, and is connected with the management center through the communication module 24, and the alarm information is uploaded to the management center.

When the lock is opened, the password or fingerprint must be input first. After the password or fingerprint authentication is correct, the linear motor 3 rotates clockwise, and the limit block 2 moves 3 mm to the left relative to the guide seat 1, releasing the limit to the hook 9 of the world lock. At this time, insert the mechanical key into the lock cylinder 6, rotate the lock cylinder 6 (as shown in Figure 2), rotate the lever 14, lift up the lever limit pin 13, the lever limit pin 13 breaks away from the notch 16b, and press down on the outer surface of the lockset. The handle and the outer handle drive the main drive wheel 11, the main drive wheel 11 drives the slave drive wheel 12 to rotate, and the connecting rod 15 moves with the driven wheel 12, driving the main dead bolt 8 to translate in place, so that the lockset is in the open state. Now the main dead bolt 8 is in contact with the main dead bolt state detection switch 5, and the main dead bolt state detection switch 5 is in the closed state. If the password or fingerprint authentication is passed, the lock cylinder 6 is not rotated with the mechanical key within 5 to 10 seconds, and the main bolt 8 is opened, that is, the main bolt state detection switch 5 is in an unclosed state, and the main control module 18 will drive the alarm module 19 Make a local sound and light alarm, and send the alarm information to the management center to inform the management personnel to check the scene in time. At the same time, the main control module 18 controls the motor driving module 17 to drive the linear motor 3 to rotate counterclockwise so that the limiting block 2 enters the limiting groove 9 a of the sky lock hook 9 again. The management center confirms that there is no man-made damage, and the sound and light alarm can be turned off remotely. If you input the password first, then input the fingerprint or input the fingerprint and then input the password, the two actions are completed within 15 seconds, that is, the authentication is passed correctly, and then the main deadbolt 8 is opened with the mechanical key, the lock is normally opened, and no alarm signal is sent. But save the unlock record.

When the lock is temporarily powered off, the state of the limit block 2 and the linear motor 3 remain unchanged when they are powered on, and an alarm signal is sent.

As shown in Figure 1, the security safety door lockset described in the utility model also includes the oblique bolt state detection switch 4 and the main dead bolt state detection switch 5 which are arranged in the lock housing 7; The tongue state detection switch 5 is in contact with the main dead bolt 8, and now the main dead bolt state detection switch 5 is turned on. When the latch tongue 10 is in the closed state, the latch tongue state detection switch 4 is in contact with the latch bolt 10, and the latch tongue state detection switch 4 is turned on at this time. The latch bolt state detection switch 4 and the main bolt state detection switch 5 are respectively electrically connected to the main control module 18 . When the three conditions of A-C are met at the same time, the main control module 18 drives the alarm module 19 to give an audible and visual alarm, so as to prevent the door from being closed and forgetting to lock the main bolt 8 or the person being locked inside. Locking) or downward (quick opening) rotation, but the inner handle of the lock is fixed, therefore, if a person enters the room and does not press the limit button of the latch bolt, he will be locked indoors, which increases the safety of the lock , If non-administrative personnel enter the room, no one outside will be locked indoors without knowing it.

A. The main deadbolt state detection switch 5 detects that the main deadbolt 8 is in an open state;

B. The latch tongue state detection switch 4 detects that the latch tongue 10 is in the closed state;

C. The duration reaches the preset time (for example, 30 minutes).

The limiting slot 9a in the present invention can also be arranged on any part of the lock that is displaced when the lock is opened. When the limit groove 9a is arranged on other components except the heaven and earth lock hook 9, the positions of the guide seat 1, the limit block 2 and the linear motor 3 also need to be adjusted accordingly, so that when the main bolt 8 is in the closed state, The limiting block 2 can be inserted into the limiting groove 9a.

Claims (7)

1. A security door lock, comprising a mechanical lock, is characterized in that it also includes: A locking mechanism (20) for limiting the opening of the mechanical lock; A fingerprint collector (21) for collecting fingerprint patterns; A password input module (22) for inputting an unlock password; It is used to compare the received fingerprint pattern with the preset fingerprint pattern, and compare the received unlock password with the preset password. When it is judged that the fingerprint pattern is consistent with the preset fingerprint pattern and/or the unlock password is the same as the preset password When consistent, control the main control module (18) that restricts the unlocking mechanism (20) to remove the restriction to the mechanical lockset. (20) Electrical connection. 2. The security security door lock according to claim 1, characterized in that: the restricted unlocking mechanism includes a guide seat (1), a limit block (2), a linear motor (3), a motor drive module (17) and a limiter Position groove (9a), the limit groove (9a) is set on any part of the lock that is displaced when the lock is opened, the guide seat (1) is installed on the lock, and the limit block (2) is aligned with the straight line The output shaft of the motor (3) is connected, and the linear motor (3) drives the limit block (2) to slide along the guide seat (1), so that the limit block (2) is disengaged/inserted into the limit groove (9a); The motor drive module (17) is respectively connected to the main control module (18) and the linear motor (3), and the main control module (18) judges that the fingerprint pattern is consistent with the preset fingerprint pattern and/or the unlock password is the same as the preset password When they are consistent, the linear motor (3) is controlled to drive the limit block (2) to move, so that the limit block (2) escapes from the limit slot (9a), so as to release the restriction on the mechanical lock. 3. The secure security door lock according to claim 1 or 2, characterized in that: the mechanical lock includes a lock cylinder (6), a lock case (7), a main bolt (8), a heaven and earth lock hook (9), Latch bolt (10), main drive wheel (11), slave drive wheel (12), lever limit pin (13), lever (14), connecting rod (15), main bolt drive plate (16), outer handle and inner handles; The lever limit pin (13) is installed on the lock case (7) parallel to the lock case (7) through the rotating shaft, and can rotate relative to the lock case (7) with the rotating shaft as the fulcrum; A notch (16b) corresponding to the lever limit pin (13) is provided on the left part of the main bolt transmission plate (16), The lever (14) is installed on the lock case (7) parallel to the lock case (7) through the rotating shaft, and can rotate relative to the lock case (7) with the rotating shaft as the fulcrum, and the rotation of the lever (14) can drive the lever limit Bit pin (13) comes out/inserts said notch (16b); One end of the inner handle is fixedly installed on the lock case (7); One end of the outer handle extends into the lock housing (7) to connect with the main transmission wheel (11), and the main transmission wheel (11) meshes with the slave transmission wheel (12), and the main bolt transmission plate (16) There is a long groove (16a) on the top, and the rotating shaft of the slave transmission wheel (12) is located in the long groove (16a). One end of the connecting rod (15) is connected with the slave transmission wheel (12), and the main bolt transmission plate (16) is provided with a chute (16c), the other end of the connecting rod (15) extends into the chute (16c) and is slidably matched with the chute (16c), and the main bolt transmission plate (16) The right side is connected with the main deadbolt (8). When the lever limit pin (13) breaks out from the gap (16b), the outer handle is manipulated to rotate the main drive wheel (11), and the main drive wheel (11) drives the slave drive wheel (12 ) to rotate, the slave transmission wheel (12) drives the main bolt (8) to move left/right through the connecting rod (15) and the main bolt transmission plate (16), so that the head of the main bolt (8) retracts/ Extend the lock housing (7). 4. The security door lock according to claim 3, characterized in that: the limiting groove (9a) is set on the sky and earth lock hook (9), and the limit block (2) is located on the sky and earth lock hook (9) on the left side. 5. The security door lock according to claim 4, characterized in that: it also includes an alarm module (19), the alarm module (19) is connected to the main control module (18), and the main control module (18) judges that When the fingerprint pattern is inconsistent with the preset fingerprint pattern and/or the unlocking password is inconsistent with the preset password, the main control module (18) drives the alarm module (19) to give an audible and visual alarm. 6. The secure safety door lockset according to claim 5, characterized in that: it also includes a latch bolt state detection switch (4) and a main bolt state detection switch (5) arranged in the lock housing (7); When the tongue (8) is in the open state, the main bolt state detection switch (5) is in contact with the main bolt (8); when the latch bolt (10) is in the closed state, the latch bolt state detection switch (4) is in contact with the latch bolt (10) Contact, the oblique bolt state detection switch (4) and the main deadbolt state detection switch (5) are respectively electrically connected to the main control module (18), and the main deadbolt state detection switch (5) detects that the main deadbolt ( 8) is in the open state, and the latch tongue state detection switch (4) detects that the latch tongue (10) is in the closed state, and the duration reaches the preset time, the main control module (18) drives the alarm module (19 ) to sound and light alarm. 7. The secure security door lock according to claim 1 or 2, characterized in that it further comprises a communication module (24), which is electrically connected to the main control module (18).