CN205003759U - Access control system is used in pit in colliery - Google Patents

Abstract

The utility model discloses an access control system for underground coal mines, which belongs to the field of equipment for underground coal mines and is designed for solving the problem of inconvenient use of existing devices. The utility model coal mine underground access control system includes an explosion-proof door, a card reader for reading identification cards, an exit button for opening the explosion-proof door from the inside, an electromagnetic lock for locking the explosion-proof door, and a card reader for controlling the explosion-proof door. controller, exit button and electromagnetic lock; wherein, the card reader is arranged on the outside of the explosion-proof door, the exit button is arranged on the inside of the explosion-proof door, and the electromagnetic lock is arranged inside the shell of the explosion-proof door. The access control system for underground coal mines of the utility model saves the cost of human resources; personnel who need to enter the above-mentioned areas can enter at any time as long as they carry identification cards, which is convenient and time-saving; electromagnetic locks are used to replace existing mechanical locks, with low failure rate and long service life . The explosion-proof door has the functions of fire prevention, ventilation, dust prevention and explosion prevention, and has high safety in use.

Description

Coal mine underground access control system

technical field

The utility model relates to the field of equipment used in underground coal mines, in particular to an access control system used in underground coal mines.

Background technique

Areas such as coal mine substations, water pump rooms, and explosive depots are important workplaces, which need to be isolated by setting doors, and only authorized personnel can enter.

The doors currently used in the above areas are all ordinary doors, using mechanical locks. When someone needs to enter and leave the above areas, a special person needs to unlock the locks, and the labor cost is high; mechanical locks are prone to damage, causing huge safety hazards; The door is poor in terms of dust prevention and fire prevention, and does not meet the requirements of modern coal mine underground operations; when underground personnel need emergency construction, the current door may not be opened in time, affecting the construction progress.

Utility model content

The purpose of the utility model is to propose a coal mine underground access control system which saves the cost of human resources.

For this purpose, the utility model adopts the following technical solutions:

An access control system for underground coal mines, the access control system includes an explosion-proof door, a card reader for reading an identification card, an exit button for opening the explosion-proof door from the inside, and an electromagnetic mechanism for locking the explosion-proof door. lock, and a controller for controlling the card reader, the exit button and the electromagnetic lock; wherein, the card reader is arranged on the outside of the explosion-proof door, and the exit button is arranged on the inside of the explosion-proof door, The electromagnetic lock is arranged inside the casing of the explosion-proof door.

In particular, the access control system further includes a power supply for supplying power to the card reader, the exit button and/or the electromagnetic lock, and the power supply is a mine-used potting structure.

Further, the power supply includes an overvoltage protection device, an overcurrent protection device and a short circuit protection device.

In particular, the access control system further includes a warning device for sending out an alarm when smoke is generated underground in the coal mine, and the warning device at least includes a mine smoke sensor and a loudspeaker.

Further, the warning device also includes a warning light, which can light up and keep flashing when smoke is generated underground in the coal mine.

In particular, the access control system further includes a lighting device for illuminating the coal mine underground passages on both sides inside and outside of the explosion-proof door when the explosion-proof door is opened.

In particular, the card reader and the electromagnetic lock are intrinsically safe devices.

In particular, the power supply is an intrinsically safe device.

In particular, the warning device is intrinsically safe equipment.

In particular, the access control system further includes an identification card, which can wirelessly transmit and read information between the identification card and the card reader, and the maximum distance for reading the card is 10cm.

The access control system for underground coal mines of the utility model includes an explosion-proof door, a card reader and an exit button. It does not need to be equipped with full-time personnel to open the door, which saves the cost of human resources; personnel who need to enter the above-mentioned areas can enter at any time as long as they carry an identification card, which is convenient and time-saving; Electromagnetic locks are used to replace existing mechanical locks, with low failure rate and long service life. The explosion-proof door has the functions of fire prevention, ventilation, dust prevention and explosion prevention, and has high safety in use.

Description of drawings

Fig. 1 is a topological diagram of an access control system for underground coal mines provided by preferred embodiment 1 of the present invention.

Labeled in the figure:

1. Explosion-proof door; 2. Card reader; 3. Identification card; 4. Exit button; 5. Controller; 6. Electromagnetic lock; 7. Lighting device; 8. Power supply; 9. Warning device; 10. Signal transmission line; 11. Power transmission line.

detailed description

The technical scheme of the utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

Preferred embodiment:

The preferred embodiment discloses an access control system for underground coal mines. As shown in Figure 1, this access control system comprises explosion-proof door 1, is used to read the card reader 2 of identification card, is used to open the door button 4 of explosion-proof door from inside, is used for the electromagnetic lock 6 of locking explosion-proof door, and A controller 5 for controlling the card reader 2, the exit button 4 and the electromagnetic lock 6. Wherein, the card reader 2 is arranged outside the explosion-proof door 1 , the exit button 4 is arranged inside the explosion-proof door 1 , and the electromagnetic lock 6 is arranged inside the casing of the explosion-proof door 1 .

The access control system is installed at the entrance of important areas such as coal mine substations, water pump rooms, and explosives warehouses. When you want to enter the above areas, you need to use the designated identification card 3 to read information on the card reader 2, and judge the read information. After being correct, the controller 5 opens the electromagnetic lock 6, and the explosion-proof door 1 is opened; when the personnel entering the above-mentioned area wants to leave, they need to press the exit button 4, the controller 5 opens the electromagnetic lock 6, and the explosion-proof door 1 is opened.

After using the access control system, there is no need to set up special staff to open the doors in important areas such as substations, water pump rooms, and explosive depots, which saves labor costs; personnel who need to enter the above areas can enter at any time as long as they carry the identification card 3, which is convenient and saves money. When using the electromagnetic lock 6 to replace the existing mechanical lock, the failure rate is low and the service life is long.

The reading information can be transmitted wirelessly between the identification card 3 and the card reader 2, the maximum distance of the card reading is 10cm, the sensitivity is high, and the reading information is accurate. The identification card 3 can be used independently, and can also be integrated into devices such as mobile phones in underground coal mines, as long as it can be quickly and accurately identified by the card reader 2 .

The card reader 2 and the electromagnetic lock 6 are preferably intrinsically safe devices. Intrinsic safety comes from the classification of explosion-proof electrical equipment produced according to the GB3836.4-2010 standard and specially used for underground use in coal mines. Explosion-proof electrical appliances are divided into explosion-proof type, increased safety type, intrinsically safe type, etc. Among them, the characteristic of intrinsically safe electrical equipment is that all of its circuits are intrinsically safe circuits, that is, the electricity generated under normal operation or specified fault conditions Neither sparks nor thermal effects can ignite circuits of the specified explosive mixture.

On the basis of the above structure, the access control system also includes a power supply 8 for supplying power to the card reader 2, the exit button 4 and/or the electromagnetic lock 6, and the power supply 8 is a mine-used potting structure. The specific structure of the power supply 8 is not limited. In addition to the basic power supply function, it may also include an overvoltage protection device, an overcurrent protection device and a short circuit protection device for providing overvoltage protection, overcurrent protection and short circuit protection. The power source 8 is preferably an intrinsically safe device.

On the basis of the above structure, the access control system also includes a warning device 9 for issuing an alarm when smoke is generated underground in the coal mine. The warning device 9 includes at least a mine smoke sensor and a loudspeaker. The warning device 9 can also include a warning light, which can be lighted and continue to flash when smoke is produced underground in the coal mine. The warning device 9 is preferably intrinsically safe equipment.

On the basis of the above structure, the access control system also includes a lighting device 7 for illuminating the coal mine underground passages on both sides of the explosion-proof door 1 when the explosion-proof door 1 is opened.

In the above structure, the controller 5 communicates with the card reader 2, the exit button 4, the electromagnetic lock 6 and the lighting device 7 through the signal transmission line 10 respectively; the power supply 8 communicates with the card reader 2, the exit button 4, the controller 5, The electromagnetic lock 6 , the lighting device 7 and the warning device 9 are communicated with each other through the power supply transmission line 11 .

The explosion-proof door 1 has the functions of dustproof, fireproof and explosion-proof. The accessories such as the card reader 2 and the electromagnetic lock 6 are all embedded in the shell of the explosion-proof door 1, and the signal transmission line 10 and the power supply transmission line 11 are all routed from the door leaf or the door frame. Wire. Various wirings cannot be seen outside the explosion-proof door 1 at all, which increases the safety of using in coal mines. Explosion-proof door 1 The door frame and door leaf abandon the traditional angle steel structure, and the skeleton adopts the form of steel pipe. There is an asbestos sealing strip between the small door leaf and the large door leaf, which is resistant to high temperature and has good sealing performance after closing. It can prevent fire, dust and explosion. The bottom side of the door frame is fixed on the waterproof stone threshold on the lower side, and the bottom side door frame is connected with the door frames on both sides with a detachable design. When large equipment needs to be installed in the substation and other areas, the bottom side door frame can be removed.

Note that the above are only preferred embodiments of the present invention and the applied technical principles. Those skilled in the art will understand that the utility model is not limited to the specific embodiments described here, and various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the utility model. Therefore, although the utility model has been described in detail through the above embodiments, the utility model is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the utility model. The scope of the present invention is determined by the appended claims.

Claims (10)

1. a underground mine use gate control system, it is characterized in that, described gate control system comprise explosion door (1), for read identification card card reader (2), for open from inner side described explosion door button of going out (4), for the electromagnetic lock (6) of explosion door described in locking and the controller (5) for controlling described card reader (2), button of going out (4) and electromagnetic lock (6); Wherein, described card reader (2) is arranged on the outside of described explosion door (1), described button of going out (4) is arranged on the inner side of described explosion door (1), and described electromagnetic lock (6) is arranged on the inside of the housing of described explosion door (1).

2. underground mine use gate control system according to claim 1, it is characterized in that, described gate control system also comprises the power supply (8) for powering for described card reader (2), button of going out (4) and/or electromagnetic lock (6), and described power supply (8) is mining casting-seal type structure.

3. underground mine use gate control system according to claim 2, is characterized in that, described power supply (8) comprises over-pressure safety device, overcurrent protective device and short-circuit protection.

4. underground mine use gate control system according to claim 1, it is characterized in that, described gate control system also comprises the alarming device (9) for giving the alarm when underground coal mine produces smog, and described alarming device (9) at least comprises mine smoke sensor and loudspeaker.

5. underground mine use gate control system according to claim 4, is characterized in that, described alarming device (9) also comprises alarm lamp, and when underground coal mine produces smog, described alarm lamp can be lighted and continue flicker.

6. according to the arbitrary described underground mine use gate control system of claim 1 to 5, it is characterized in that, described gate control system also comprises the lighting device (7) at described explosion door (1) open period being described explosion door (1) inside and outside both sides underground coal mine pathway lighting.

7., according to the arbitrary described underground mine use gate control system of claim 1 to 5, it is characterized in that, described card reader (2) and described electromagnetic lock (6) are intrinsically safe equipment.

8. the underground mine use gate control system according to Claims 2 or 3, is characterized in that, described power supply (8) is intrinsically safe equipment.

9. the underground mine use gate control system according to claim 4 or 5, is characterized in that, described alarming device (9) is intrinsically safe equipment.

10. according to the arbitrary described underground mine use gate control system of claim 1 to 5, it is characterized in that, described gate control system also comprises identification card (3), wireless transmission can read information between described identification card (3) and described card reader (2), the ultimate range of Card Reader is 10cm.