CN216130955U - Intelligent air door interlocking control system for coal mine - Google Patents
Intelligent air door interlocking control system for coal mine Download PDFInfo
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- CN216130955U CN216130955U CN202120733298.2U CN202120733298U CN216130955U CN 216130955 U CN216130955 U CN 216130955U CN 202120733298 U CN202120733298 U CN 202120733298U CN 216130955 U CN216130955 U CN 216130955U
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Abstract
The utility model discloses an intelligent air door interlocking control system for a coal mine, which comprises a controller, a first air door device and a second air door device, wherein the structure of the first air door device is the same as that of the second air door device, the first air door device and the second air door device respectively comprise a door body, an actuating mechanism, a switching device and a sensor, the actuating mechanism is used for controlling the door body connected with the actuating mechanism to be opened or closed, the switching device is used for controlling the opening or closing of the corresponding door body through the actuating mechanism, the sensor is used for sensing the opening or closing state of the door body, and the controller is used for ensuring that only one air door is opened at the same time; the system can avoid that two air doors are opened simultaneously due to misoperation of personnel, so that the safety of a mine is damaged due to short circuit of an underground ventilation system.
Description
Technical Field
The utility model relates to the technical field of mining communication control equipment, in particular to an intelligent air door interlocking control system for a coal mine.
Background
Two air doors between the underground belt lane and the track lane are places where people frequently pass through and are the most important components in a ventilation system, if the two air doors are opened simultaneously, the ventilation system is short-circuited, and no air flows through a part of areas, so that the safety of a mine is damaged.
In the prior art, two air doors can only be tied through a steel wire rope, and after one air door is opened, the other air door is pulled to be in a closed state by the steel wire rope, so that interlocking is realized. However, in actual operation, when one air door is opened by half, the other air door happens to be opened by someone, so that the two air doors are both opened by half, and the short circuit of a ventilation system is caused to harm mine safety. Therefore, it is necessary to design an intelligent control system capable of realizing the interlock of the air door.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is as follows: the intelligent control system can realize the interlocking of the coal mine air doors, avoid the short circuit of a ventilation system caused by the simultaneous opening of two air doors, and improve the safety of mine operation.
The utility model designs an intelligent air door interlocking control system for a coal mine, which comprises a controller, a first air door device and a second air door device, wherein the controller is connected with the first air door device;
the first air door device has the same structure as the second air door device and respectively comprises a door body, an actuating mechanism, a switch device and a sensor;
the actuating mechanism is connected with the corresponding door body and is used for controlling the door body connected with the actuating mechanism to be opened or closed;
the switch device is connected with the corresponding actuating mechanism through the controller, the switch device is used for controlling the opening or closing of the corresponding door body through the actuating mechanism, and the switch device is a normally closed switch;
the sensors are arranged on the corresponding door bodies, connected with the controller and used for sensing the opening or closing state of the door bodies and uploading the opening or closing state to the controller;
the controller comprises a first NOT gate logic device, a second NOT gate logic device, a first AND gate logic device, a second AND gate logic device and a NAND gate logic device;
the switch device in the second air door device is respectively connected with one input end of the first AND gate logic device and one input end of the NAND gate logic device; the switch device in the first air door device is respectively connected with one input end of the second AND gate logic device and one input end of the NAND gate logic device; the output end of the NAND gate logic device is respectively connected with one input end of the first AND gate logic device and one input end of the second AND gate logic device; the input end of the first NOT gate logic device is connected with a sensor in the first air door device, and the output end of the first NOT gate logic device is connected with one input end of the first AND gate logic device; the input end of the second NOT gate logic device is connected with a sensor in the second air door device, and the output end of the second NOT gate logic device is connected with one input end of the second AND gate logic device; the output end of the first AND logic device is connected with an actuating mechanism in the second air door device; the output end of the second AND logic device is connected with an actuating mechanism in the first air door device;
the signal flag 1 corresponds to when the opening switch device is defined to be opened and the sensor senses that the damper is opened, and the signal flag 0 corresponds to when the normally closed state of the opening switch device is defined and the sensor senses that the damper is closed.
As a preferred technical scheme of the utility model: the switch device comprises an inner switch and an outer switch; the inner switch and the outer switch are respectively arranged on the inner side and the outer side of the position corresponding to the door body and are connected with the actuating mechanism through the controller.
As a preferred technical scheme of the utility model: the sensor is a contact sensor, is arranged on the corresponding door body, is connected with the controller and is used for detecting whether the door body is in contact with an object butted when the door body is in a closed state.
As a preferred technical scheme of the utility model: the coal mine intelligent air door interlocking control system also comprises a mine explosion-proof sound box; the mining explosion-proof sound box is arranged in a preset range of the door body and is connected with the controller.
As a preferred technical scheme of the utility model: the actuating mechanism consists of a cylinder and a piston rod; the working end of the cylinder is connected with the door body through a piston rod, and the control end of the cylinder is connected with the controller.
Has the advantages that: compared with the prior art, the utility model has the advantages that:
the utility model designs an intelligent control system capable of realizing coal mine air door interlocking, which comprises a controller, a first air door device and a second air door device, wherein the structure of the first air door device is the same as that of the second air door device, the first air door device and the second air door device respectively comprise a door body, an actuating mechanism, a switch device and a sensor, the actuating mechanism is used for controlling the door body connected with the actuating mechanism to be opened or closed, the switch device is used for controlling the corresponding door body to be opened or closed through the actuating mechanism, the sensor is used for sensing the opening or closing state of the door body, and the controller is used for ensuring that only one air door is opened at the same time; the system can avoid that two air doors are opened simultaneously due to misoperation of personnel, so that the safety of a mine is damaged due to short circuit of an underground ventilation system.
Drawings
FIG. 1 is a schematic block diagram of the architecture of the present invention;
fig. 2 is a diagram of the internal logic of the controller according to the present invention.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
Referring to fig. 1, the intelligent ventilation door interlocking control system for the coal mine provided by the embodiment of the utility model comprises a controller, a first ventilation door device and a second ventilation door device. The structure of the first air door device is the same as that of the second air door device, and the first air door device and the second air door device respectively comprise a door body, an actuating mechanism, a switch device and a sensor. The signal flag 1 corresponds to when the opening switch device is defined to be opened and the sensor senses that the damper is opened, and the signal flag 0 corresponds to when the normally closed state of the opening switch device is defined and the sensor senses that the damper is closed. The actuating mechanism is connected with the corresponding door body and is used for controlling the door body connected with the actuating mechanism to be opened or closed. In practical application, the actuating mechanism consists of an air cylinder and a piston rod, the working end of the air cylinder is connected with the door body through the piston rod, and the control end of the air cylinder is connected with the controller. When the controller outputs a signal 1, the cylinder responds to and drives the piston to move, so that the switching of the opening or closing state of the air door is realized; when the controller outputs a signal of 0, the cylinder does not respond and the damper open or closed state remains unchanged. The switch device comprises an inner switch and an outer switch which are respectively arranged on the inner side and the outer side of the position corresponding to the door body, and are connected with the actuating mechanism through the controller for controlling the opening or closing of the door body. The switch device is a normally closed switch, and when the switch device is in a normally closed state, a signal 0 is transmitted to the controller; when the switching device is opened, a signal 1 is transmitted to the controller. The sensor is a contact sensor, is arranged on the corresponding door body, is connected with the controller, and is used for sensing the opening or closing state of the door body and uploading the controller. When the door body is in a closed state, the door body is in contact with an object butted with the door body, and the contact sensor outputs a signal 0 to the controller; when the door body is in an open state, the door body is not in contact with an object butted with the door body, and the contact sensor outputs a signal 1 to the controller. The mining explosion-proof sound box is arranged in a preset range of the door body and is connected with the controller.
Referring to fig. 2, the controller includes a first not gate logic device, a second not gate logic device, a first and gate logic device, a second and gate logic device, and a nand gate logic device; the switch device in the second air door device is respectively connected with one input end of the first AND gate logic device and one input end of the NAND gate logic device; the switch device in the first air door device is respectively connected with one input end of the second AND gate logic device and one input end of the NAND gate logic device; the output end of the NAND gate logic device is respectively connected with one input end of the first AND gate logic device and one input end of the second AND gate logic device; the input end of the first NOT gate logic device is connected with a sensor in the first air door device, and the output end of the first NOT gate logic device is connected with one input end of the first AND gate logic device; the input end of the second NOT gate logic device is connected with a sensor in the second air door device, and the output end of the second NOT gate logic device is connected with one input end of the second AND gate logic device; the output end of the first AND logic device is connected with an actuating mechanism in the second air door device; the output end of the second AND logic device is connected with an actuating mechanism in the first air door device.
When the structure is applied to practice, in an initial state, the two air doors are both in a closed state, and the contact sensors of the first air door and the second air door sense the closed state of the air doors and respectively output signals 0; the switch devices of the first air door and the second air door are both in a normally closed state and respectively output signals 0.
When the two air doors are in a closed state, the contact sensors of the first air door and the second air door sense the closed state of the air doors and respectively output a signal 0. Opening a switching device corresponding to the first air door, wherein the switching device corresponding to the first air door respectively transmits a signal 1 to one input end of the NAND gate logic device and one input end of the second AND gate logic device; the switch device corresponding to the second air door is still in a normally closed state because of not being opened, and transmits a signal 0 to the other input end of the NAND gate logic device and one input end of the first AND gate logic device respectively; the output signal 1 of the output end of the NAND gate logic device is respectively transmitted to one input end of the first AND gate logic device and one input end of the second AND gate logic device; the signal 0 output by the contact sensor corresponding to the two air doors is changed into a signal 1 after passing through the NOT gate logic device, and the signal 1 is respectively transmitted to one input end of the first AND gate logic device and one input end of the second AND gate logic device; in conclusion, the signals of the three input ends of the first AND logic device are respectively 1, 0 and 1, the output signal 0 is transmitted to the actuating mechanism corresponding to the second air door, the actuating mechanism does not respond, and the second air door still keeps a closed state; the signals of three input ends of the second AND gate logic device are respectively 1, 1 and 1, the output signal 1 is transmitted to an actuating mechanism corresponding to the first air door, and the actuating mechanism responds to open the first air door.
When the two air doors are in a closed state, the contact sensors of the first air door and the second air door sense the closed state of the air doors and respectively output a signal 0. And opening the switch device corresponding to the second air door in the same way.
When the two air doors are both in a closed state, the contact sensors of the first air door and the second air door sense the closed state of the air doors and respectively output a signal 0. Opening the switching devices corresponding to the two air doors simultaneously, wherein the switching device corresponding to the first air door transmits a signal 1 to one input end of the NAND gate logic device and one input end of the second AND gate logic device respectively, and the switching device corresponding to the second air door transmits the signal 1 to the other input end of the NAND gate logic device and one input end of the first AND gate logic device respectively; the output signal 0 of the output end of the NAND gate logic device is respectively transmitted to one input end of the first AND gate logic device and one input end of the second AND gate logic device; the signals 0 output by the contact sensors of the first air door and the second air door are changed into signals 1 after passing through the NOT gate logic device, and the signals 1 are respectively transmitted to one input end of the first AND gate logic device and one input end of the second AND gate logic device; in conclusion, the signals of the three input ends of the first AND logic device are respectively 1, 1 and 0, the output signal 0 is transmitted to the actuating mechanism corresponding to the second air door, the actuating mechanism does not respond, and the second air door still keeps a closed state; the signals of three input ends of the second AND gate logic device are respectively 0, 1 and 1, the output signal 0 is transmitted to an actuating mechanism corresponding to the first air door, the actuating mechanism does not respond, and the first air door still keeps a closed state.
When the first air door is in an open state and the second air door is in a closed state, the contact sensor of the first air door senses the open state of the air door and outputs a signal 1; and the contact sensor of the second air door senses the closing state of the air door and outputs a signal 0. Opening a switching device corresponding to the second air door, wherein the switching device corresponding to the second air door respectively transmits a signal 1 to one input end of the NAND gate logic device and one input end of the first AND gate logic device; the switch device corresponding to the first air door is still in a normally closed state because of not being opened, and transmits a signal 0 to the other input end of the NAND gate logic device and one input end of the second AND gate logic device respectively; the output signal 1 of the output end of the NAND gate logic device is respectively transmitted to one input end of the first AND gate logic device and one input end of the second AND gate logic device; a signal 1 output by a contact sensor of the first air door passes through the first NOT gate logic device and then is changed into a signal 0 which is transmitted to one input end of the first AND gate logic device; a signal 0 output by a contact sensor of the second air door is changed into a signal 1 after passing through a second NOT gate logic device and is transmitted to one input end of the second AND gate logic device; in conclusion, the signals of the three input ends of the first AND logic device are respectively 0, 1 and 1, the output signal 0 is transmitted to the actuating mechanism corresponding to the second air door, the actuating mechanism does not respond, and the second air door still keeps a closed state; the signals of three input ends of the second AND gate logic device are respectively 1, 0 and 1, the output signal 0 is transmitted to an actuating mechanism corresponding to the first air door, the actuating mechanism does not respond, and the first air door still keeps an open state.
When the first air door is in an open state and the second air door is in a closed state, the contact sensor of the first air door senses the open state of the air door and outputs a signal 1; and the contact sensor of the second air door senses the closing state of the air door and outputs a signal 0. Opening a switching device corresponding to the first air door, wherein the switching device corresponding to the first air door respectively transmits a signal 1 to one input end of the NAND gate logic device and one input end of the second AND gate logic device; the switch device corresponding to the second air door is still in a normally closed state because of not being opened, and transmits a signal 0 to the other input end of the NAND gate logic device and one input end of the first AND gate logic device respectively; the output signal 1 of the output end of the NAND gate logic device is respectively transmitted to one input end of the first AND gate logic device and one input end of the second AND gate logic device; a signal 1 output by a contact sensor of the first air door passes through the first NOT gate logic device and then is changed into a signal 0 which is transmitted to one input end of the first AND gate logic device; a signal 0 output by a contact sensor of the second air door is changed into a signal 1 after passing through a second NOT gate logic device and is transmitted to one input end of the second AND gate logic device; in conclusion, the signals of the three input ends of the first AND logic device are respectively 0, 0 and 1, the output signal 0 is transmitted to the actuating mechanism corresponding to the second air door, the actuating mechanism does not respond, and the second air door still keeps a closed state; the signals of three input ends of the second AND gate logic device are respectively 1, 1 and 1, the output signal 1 is transmitted to an actuating mechanism corresponding to the first air door, and the actuating mechanism responds to close the first air door.
The utility model provides an intelligent air door interlocking control system for a coal mine, which comprises a controller, a first air door device and a second air door device, wherein the first air door device has the same structure as the second air door device and respectively comprises a door body, an actuating mechanism, a switch device and a sensor, the actuating mechanism is used for controlling the door body connected with the actuating mechanism to be opened or closed, the switch device is used for controlling the opening or closing of the corresponding door body through the actuating mechanism, the sensor is used for sensing the opening or closing state of the door body, and the controller is used for ensuring that only one air door is opened at the same time; the system can avoid that two air doors are opened simultaneously due to misoperation of personnel, so that the safety of a mine is damaged due to short circuit of an underground ventilation system.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (5)
1. An intelligent air door interlocking control system for a coal mine is characterized by comprising a controller, a first air door device and a second air door device;
the first air door device and the second air door device have the same structure and respectively comprise a door body, an actuating mechanism, a switch device and a sensor;
the actuating mechanism is connected with the corresponding door body and is used for controlling the door body connected with the actuating mechanism to be opened or closed;
the switch device is connected with the corresponding actuating mechanism through the controller, the switch device is used for controlling the opening or closing of the corresponding door body through the actuating mechanism, and the switch device is a normally closed switch;
the sensors are arranged on the corresponding door bodies, connected with the controller and used for sensing the opening or closing state of the door bodies and uploading the opening or closing state to the controller;
the controller comprises a first NOT gate logic device, a second NOT gate logic device, a first AND gate logic device, a second AND gate logic device and a NAND gate logic device;
the switch device in the second air door device is respectively connected with one input end of the first AND gate logic device and one input end of the NAND gate logic device; the switch device in the first air door device is respectively connected with one input end of the second AND gate logic device and one input end of the NAND gate logic device; the output end of the NAND gate logic device is respectively connected with one input end of the first AND gate logic device and one input end of the second AND gate logic device; the input end of the first NOT gate logic device is connected with a sensor in the first air door device, and the output end of the first NOT gate logic device is connected with one input end of the first AND gate logic device; the input end of the second NOT gate logic device is connected with a sensor in the second air door device, and the output end of the second NOT gate logic device is connected with one input end of the second AND gate logic device; the output end of the first AND logic device is connected with an actuating mechanism in the second air door device; the output end of the second AND logic device is connected with an actuating mechanism in the first air door device.
2. The intelligent coal mine damper interlock control system according to claim 1, wherein the switch device comprises an inner switch, an outer switch; the inner switch and the outer switch are respectively arranged on the inner side and the outer side of the position corresponding to the door body and are connected with the actuating mechanism through the controller.
3. The intelligent coal mine ventilation door interlock control system according to claim 1, wherein the sensors are contact sensors disposed on the corresponding door bodies and connected to the controller for detecting whether the door bodies are in contact with an object that is butted when the door bodies are in the closed state.
4. The intelligent coal mine ventilation door interlocking control system according to claim 1, further comprising a mine explosion-proof sound box; the mining explosion-proof sound box is arranged in a preset range of the door body and is connected with the controller.
5. The intelligent coal mine ventilation door interlocking control system according to claim 1, wherein the actuator is composed of a cylinder and a piston rod; the working end of the cylinder is connected with the door body through a piston rod, and the control end of the cylinder is connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120733298.2U CN216130955U (en) | 2021-04-12 | 2021-04-12 | Intelligent air door interlocking control system for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120733298.2U CN216130955U (en) | 2021-04-12 | 2021-04-12 | Intelligent air door interlocking control system for coal mine |
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| Publication Number | Publication Date |
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| CN216130955U true CN216130955U (en) | 2022-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120733298.2U Active CN216130955U (en) | 2021-04-12 | 2021-04-12 | Intelligent air door interlocking control system for coal mine |
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- 2021-04-12 CN CN202120733298.2U patent/CN216130955U/en active Active
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