CN212460636U

CN212460636U - Intelligent industrial safety lock

Info

Publication number: CN212460636U
Application number: CN202021506117.4U
Authority: CN
Inventors: 苏争练
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2021-02-02
Anticipated expiration: 2030-07-27

Abstract

The utility model relates to an intelligent industrial safety lock, which comprises a controller, a locking actuator and a personal IC card; the controller completes the functions of identifying and checking the information of the personnel entering and withdrawing the operator and unlocking the lock; the locking actuator completes the locking and unlocking functions and the self-checking function of the automation equipment; the personal IC card stores company identification information, employee ID codes, employee authority information and IC card special encrypted data messages; the controller is connected with the locking actuator by a communication bus. The utility model has the advantages that: the private entrance of personnel without relevant safety knowledge and operation skills can be effectively prevented; the safety door can be prevented from being closed by other unrelated persons or other accidents, and the operation of the automatic equipment is reset; the safety lock has a self-checking function, and can prevent safety accidents caused by the failure of the safety lock function; the system can remind an operator of normative operation, and some unexpected unsafe factors are effectively avoided.

Description

Intelligent industrial safety lock

Technical Field

The utility model belongs to the automatic control field relates to the safety control technique of automation line emergency exit, especially relates to an intelligent industrial safety lock.

Background

Generally, an integrally closed safety fence is installed on an industrial automation line and used for isolating an automation area into independent areas and preventing personal injury or equipment damage accidents caused by the fact that people and other movable equipment enter the automation operation area. The safety fence sets up the emergency exit of making things convenient for the maintainer to pass in and out, installs the safety lock chain with automation equipment on the emergency exit, and automation equipment power is cut off when the emergency exit is in open position state, and automation equipment stop motion in the region ensures to get into the personal safety of maintainer in the automation operation region.

The existing common safety lock converts the door opening and closing operation into the closing and opening of a group of normally open and normally closed contacts through a mechanical structure, completes the operation and stop control of automatic production line equipment, and simultaneously uses a grating to detect door opening and closing signals of the safety door. Because the automation equipment is complex and has too many on-site influencing safety factors, a large number of safety holes exist in practical application, and personal injury or equipment damage is caused. For example, a maintainer enters an automatic operation area, a gust of wind is blown in the area, a door is closed, and automatic equipment in the area starts to operate at the moment, so that the personnel injury risk of the operating personnel in the area is caused.

The existing improved industrial safety lock is additionally provided with a mechanical lock on the basis of a common safety lock, a full door lock or a switch is in an unlocking state, a key on a locking device is rotated clockwise at the moment, and the full door lock or the switch actuator is locked, so that the full door lock or the switch actuator cannot enter a locking working state, and the key can be pulled out; when the lock pin is inserted into the lock pin groove, the full door lock or the switch is in a locking working state, and the key on the locking device cannot be pulled out. The key is carried to enter a dangerous area, and under the condition that the key is not available, other people cannot enable the whole door lock or the switch to work, so that the safety of personnel is ensured. The technology mainly solves the problems that a maintainer enters an automatic operation area, automatic equipment in the recovery area accidentally closes a door and starts to operate, so that the operating personnel in the area suffer from personal injury risks, but the automatic equipment is complex, and often needs multi-person cooperative operation, so that a potential safety hazard exists at the moment. Suppose that three people, namely people A and people B, enter an automatic area for maintenance, suppose that two people A and people B complete maintenance tasks, the people A just carry a safety door key, and people C still maintain the operation, the people A and people B leave the automatic area for the reason that the people C complete the work, the people A and people B leave the automatic area and reset a safety door lock, and all equipment in the area starts to operate, so that an injury accident is caused.

The existing safety door is additionally provided with an artificial safety device, when the safety lock is in an unlocking state, the bolt is drawn out in place, the movable lock plate fixed on the bolt is overlapped with the fixed lock plate fixed on the safety door frame, and the personnel entering an automatic region can lock the special padlock of an individual on the lock plate hole. The safety lock can be reset only when all people finish the maintenance operation to take off all padlocks, and the safety lock can not be reset by other people as long as one lock is not taken off, so that the automation equipment can be started only after all people leave the automation area. The technology only solves the problem that when an individual maintainer and a plurality of maintainers enter an automatic operation area, automatic equipment in an accidental door closing recovery area starts to operate, so that the maintainers in the area suffer personal injury risks;

the following major vulnerabilities exist with this technique: 1. when in maintenance, the door is required to be opened, and other idle personnel can directly enter the door to cause injury accidents; supposing that three people, namely, people. 2. The manual safety device needs to be purchased and installed independently in application, and is inconvenient to use.

The existing safety door lock basically belongs to a mechanical switch or a photoelectric switch, the function is too simple, the working state of production line equipment is not monitored, and closed-loop control is not formed, so that safety accidents caused by the failure of the safety lock often occur. An intelligent industrial safety lock needs to be researched, can identify operators, automatically check information of personnel entering and withdrawing, can autonomously judge whether the personnel are completely withdrawn, and has the function of preventing accidents caused by the failure of the safety lock.

SUMMERY OF THE UTILITY MODEL

For solving above current problem, the utility model provides an intelligent industrial safety lock. The utility model discloses a following technical scheme realizes.

An intelligent industrial safety lock comprises a mounting base, a controller and a locking actuator;

the mounting base is vertically arranged; a fastening device is fixedly arranged on the mounting base; a through hole is formed between the fastening device and the mounting base; the through hole is a lock pin groove; the lower part of the mounting base is fixedly provided with a baffle;

the controller is vertically arranged with the mounting base; an electromagnetic lock, a limit switch, a loudspeaker and a first system control panel are arranged in the controller; the electromagnetic lock is connected with the lock pin groove in a sliding mode; the limit switch is connected with the baffle in a sliding manner; a connecting hole is formed in the controller and positioned at the tail part of the electromagnetic lock; a forced door opening handle is connected and arranged at the outer side of the controller; the bottom of the forced door opening handle penetrates through the back of the controller and is connected with the tail part of the electromagnetic lock through the connecting hole; a reset button, an IC card reader, a display device and an interface operation key are arranged on the outer side surface of the controller; the controller is also provided with a first communication interface;

the locking actuator is provided with a second communication interface, an out-out interface and a state in-out interface; a second system control board is arranged in the locking actuator; an automatic device is arranged below the locking actuator; one end of the second communication interface is connected with the first communication interface through a communication bus; one end of the opening interface and one end of the state opening interface are electrically connected with the automation equipment respectively;

the intelligent industrial safety lock is provided with a personal IC card; the personal IC card is in non-contact electromagnetic induction connection with the IC card reader.

Preferably, the mounting base and the controller are both rectangular structures; the top and the bottom of the mounting base are respectively provided with a first mounting hole; the mounting base is mounted on the door frame through the first mounting hole; the top and the bottom of the controller are respectively provided with a second mounting hole; the controller is installed on the movable door leaf plate through the second installation hole.

Preferably, the first system control board is an embedded system control board; the first system control panel is provided with a reset button, a signal conditioning circuit of an interface operation key, a voice control and audio amplification circuit, a power supply control circuit of an electromagnetic lock, a signal conditioning circuit of a limit switch and a power supply management circuit.

Preferably, the second system control board is an embedded system control board; the second system control panel is provided with an LED indicator light, a state input identification circuit, an output execution circuit and a power management circuit.

Compared with the prior art, the utility model has the advantages of it is following:

1. by swiping a personal IC card, the intelligent industrial safety lock can autonomously identify the operation authority of an operator, and the personal entry of personnel without relevant safety knowledge and operation skills is avoided;

2. the intelligent industrial safety lock can automatically register, withdraw and cancel the entrants and automatically check whether the entrants are completely withdrawn, so that the situation that individual entrants are missed in an automatic area, the intelligent industrial safety lock is reset, the equipment operation in the automatic area is recovered, the industrial safety lock can be reset only when no person stays in the dangerous area, and the equipment operation in the automatic area is recovered.

3. The intelligent industrial safety lock can identify whether an instruction for controlling the automation equipment is successfully executed or not by monitoring the working state of the automation equipment, thereby realizing closed-loop control and avoiding safety accidents caused by the failure of the safety lock and the abnormal circuit.

4. The intelligent industrial safety lock can remind an operator of standardizing operation through the display device and the loudspeaker, and some unexpected unsafe factors are effectively avoided.

Drawings

FIG. 1 is a schematic structural view of an intelligent industrial safety lock of the present invention;

fig. 2 is an electric control schematic diagram of the intelligent industrial safety lock of the utility model.

Detailed Description

The technical solution of the present invention will be described in more detail and fully with reference to the accompanying drawings.

In specific embodiment 1, an intelligent industrial safety lock includes a mounting base 1, a controller 10 and a locking actuator 30;

the installation base 1 is of a rectangular structure and is vertically installed on a door frame through an upper first installation hole 2 and a lower first installation hole 2, a fastening device 3 is fixedly installed on the upper portion of the installation base 1, a through hole between the fastening device 3 and the installation base 1 is a lock pin groove 4, and a baffle 5 is fixedly installed on the lower portion of the installation base 1; the controller 10 is of a rectangular structure, is arranged perpendicular to the mounting base 1, and is mounted on the movable door leaf plate through an upper second mounting hole 15 and a lower second mounting hole 15;

an electromagnetic lock 11, a loudspeaker 12, a limit switch 18 and a first system control board 20 are arranged in the controller 10, the electromagnetic lock 11 is connected with a shell of the controller 10 through screws and is connected with a lock pin groove 4 of the installation base 1 in a sliding mode, a connecting hole 14 is formed in the controller 10 at the tail of the electromagnetic lock 11, the limit switch 18 is connected with a baffle 5 fixedly installed at the lower portion of the installation base 1 in a sliding mode and is connected with the shell of the controller 10 through screws, the loudspeaker 12 is bonded on the inner surface of the front shell of the controller 10, the first system control board 20 is an embedded system control board, and the first system control board 20 is fixedly connected with the interior of the shell of the controller 10 through screws; a forced door opening handle 13 is connected and arranged on the outer shell of the controller 10, the bottom of the forced door opening handle 13 penetrates through the back of the controller 10 and is connected with the tail of the electromagnetic lock 11 through a connecting hole 14 through a bolt, a reset button 16, an IC card reader 21, a display device 23 and an interface operation key 26 are arranged on the front face of the front shell of the controller 10, a first communication interface 24 is further arranged at the right side end of the controller 10, wherein the electromagnetic lock 11, a limit switch 18, a loudspeaker 12, the reset button 16, the IC card reader 21, the display device 23, the interface operation key 26 and the first communication interface 24 are all electrically connected with the first system control board 20, the reset button 16 is connected with the front shell of the controller 10 through a bolt, a signal conditioning circuit, a voice control and audio amplification circuit and a power supply control circuit of the electromagnetic lock 11 are arranged in the first system control board 20, and a signal conditioning circuit, A signal conditioning circuit for limit switch 18 and a power management circuit.

The locking actuator 30 is provided with a second communication interface 31, an open interface 32 and a state open interface 33, the locking actuator 30 is provided with a second system control board 34, the second system control board 34 is an embedded system control board, the automation device 50 is arranged below the locking actuator 30, one end of the second communication interface 31 is connected with the first communication interface 24 through an RS485 bus, the other end of the second communication interface is electrically connected with the second system control board 34, one end of the open interface 32 and one end of the state open interface 33 are respectively electrically connected with the automation device 50, the other ends of the open interface 32 and the state open interface 33 are respectively electrically connected with the second system control board 34, wherein the second system control board 34 is provided with an LED indicator lamp, a state open identification circuit, an open execution circuit and a power management circuit.

The intelligent industrial safety lock is provided with a personal IC card 40, the personal IC card 40 is in non-contact electromagnetic induction connection with an IC card reader 21, and company identification information, employee ID codes, employee authority information and IC card proprietary encrypted data information are stored in the personal IC card 40; the authority information of the staff is divided into operable authority, allowed access and only registered, the operable authority is the highest authority, and the staff can apply for unlocking operation and stop the automatic equipment when the automatic equipment runs; the permission access authority is a medium authority, and the application of unlocking operation and access is permitted only when the automation equipment stops; only the registration authority is the lowest authority, and only the registration authority can be used as a accompanying person, and the accompanying person enters along with the door opening operator, and only the entrance registration authority and the evacuation logout authority are enjoyed.

In the specific embodiment 2, the speaker 12 may be replaced by a buzzer, which makes different sounds to prompt the operator to close the emergency gate in time after entering.

In embodiment 3, the limit switch 18 may be replaced by a proximity switch, and the position of the safety door may be monitored.

In embodiment 4, the first communication interface 24 and the second communication interface 31 may use a CAN bus interface to complete message data transmission.

In the specific embodiment 5, the personal IC card identification can be replaced by using the fingerprint information, and the functions of operator identification, entry registration, exit logout can also be realized.

In the specific embodiment 6, the personal IC card recognition can use face information recognition, and can also realize the functions of operator recognition, registration entry, withdrawal and logout.

The specific working principle is as follows:

1. the mounting base 1 of the intelligent industrial safety lock is vertically mounted on a door frame through an upper mounting hole 2 and a lower mounting hole 2, and a controller 10 is mounted on a movable door leaf plate through an upper mounting hole 15 and a lower mounting hole 15.

2. An operator swipes a personal IC card 40 on an IC card reader 21, and the first system control panel 20 acquires the authority information of the operator; the personal IC card 40 internally stores information including company identification information, employee ID code, authority information of the employee, and IC card-specific encrypted data. When the system is applied, a company distributes a personal exclusive IC card for each employee which possibly enters an automation area according to the self ability and the post of the employee, and after the ability or the post of the employee changes, the authority information in the personal exclusive IC card can be changed to enable the authority of the IC card to be matched with the ability or the post of the employee; the rights information can be divided into: the method comprises the steps of operability, admission and registration only, wherein the operable authority is the highest authority, and the method can apply for unlocking operation and stop the automation equipment when the automation equipment runs; the permission access authority is a medium authority, and the application of unlocking operation and access is permitted only when the automation equipment stops; only the registration authority is the lowest authority, and the device can only be used as a companion person, and can enter along with an operator who opens the door, and only enjoys the full authority of registration and entrance and evacuation and logout.

3. When the first system control board 20 recognizes that the operator has the right to enter the automation area, the first system control board 20 sends a message of "lock automation device operation data" to the lock actuator 30 through the first communication interface 24, otherwise, when the operator does not have the right to enter the automation area, the first system control board 20 prompts "low authority" or "illegal IC" only through the display module, and does not perform other response processing.

4. After receiving the "lock automation device operation data" message, the lock actuator 30 outputs an operation signal of the lock automation device 50 and detects the operating state of the automation device 50; when the lock actuator 30 detects that the automation device 50 has stopped, it returns a "lock automation device success data" message to the controller 10 via the second communication interface 31.

5. When the controller 10 receives the message of "locking the automation equipment success data", the first system control board 20 drives the electromagnetic lock 11 to retract the lock pin, and unlocks the safety door.

6. The first system control panel 20 detects the door position state through the limit switch 18, when the emergency exit is opened, the speaker 12 prompts an operator that 'the card must be swiped for entering, the door should be closed immediately after entering', the electromagnetic lock 11 is released, and the lock pin of the electromagnetic lock 11 is ejected out under the pushing of the spring inside the electromagnetic lock 11.

7. When a person swipes his or her IC card 40 at the IC card reader 21 and enters the security gate, the first system control board 20 registers the entered persons one by one, and when the person enters the security gate, the security gate is closed, and the lock pin of the electromagnetic lock 11 slides into the lock pin groove 4 to lock the security gate.

8. After the maintenance operation is completed, the forced door opening handle 13 on the back of the controller 10 is pulled, the electromagnetic lock 11 is unlocked, and all the personnel leave the automation area.

9. When a reset button 16 on the front panel of the controller 10 is pressed, all people swipe personal IC cards 40 on an IC card reader 21, the first system control board 20 performs evacuation and logout, and only after all registered people evacuate and logout, the controller 10 sends an unlocking 'automation equipment operation data' message to the locking actuator 30 through the first communication interface 24.

10. After receiving the "automation device operation data" message, the locking actuator 30 outputs an operation signal for unlocking the automation device 50, and detects the operating state of the automation device 50; when the lock actuator 30 detects that the automation device 50 is already operating, the response controller 10 returns an "unlock automation device success" message.

11. After the controller 10 receives the message of successful unlocking of the automation equipment, the controller 10 outputs the reset information of the intelligent industrial safety lock through the display device 23, and reminds the operator of successful resetting of the safety lock through the loudspeaker 12.

12. When personnel need to escape in an emergency in an automatic area, the unlocking of the safety door can be realized only by directly sliding the forced door opening handle 13, and the person can escape by opening the door.

13. The locking actuator 30 can identify whether the instruction for controlling the automation device 50 is successfully executed or not by monitoring the working state of the automation device 50, immediately output a forced stop signal to forcibly stop the automation device 50 once the signal for stopping the automation device 50 is found not to be executed, and output a message of 'fault information and fault state' to the controller 10 through the second communication interface 32; as soon as it is found that the signal for outputting the operating automation device 50 is not executed, a signal for stopping the automation device 50 is output and a "fault information and fault status" message is sent to the controller 10 via the second communication interface 32; the controller 10 displays and outputs the failure information thereof by voice through the display device 23 and the speaker 12, and reminds the operator. The closed-loop control is realized, and safety accidents caused by safety lock failure and line abnormity are avoided.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.

Claims

1. The utility model provides an intelligent industrial safety lock, includes installation base, controller and shutting executor, its characterized in that:

2. An intelligent industrial safety lock according to claim 1, wherein: the mounting base and the controller are both rectangular structures; the top and the bottom of the mounting base are respectively provided with a first mounting hole; the mounting base is mounted on the door frame through the first mounting hole; the top and the bottom of the controller are respectively provided with a second mounting hole; the controller is installed on the movable door leaf plate through the second installation hole.

3. An intelligent industrial safety lock according to claim 1, wherein: the first system control board is an embedded system control board; the first system control panel is provided with a reset button, a signal conditioning circuit of an interface operation key, a voice control and audio amplification circuit, a power supply control circuit of an electromagnetic lock, a signal conditioning circuit of a limit switch and a power supply management circuit.

4. An intelligent industrial safety lock according to claim 1, wherein: the second system control board is an embedded system control board; the second system control panel is provided with an LED indicator light, a state input identification circuit, an output execution circuit and a power management circuit.