CN212569885U - Access control system - Google Patents
Access control system Download PDFInfo
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- CN212569885U CN212569885U CN202021513669.8U CN202021513669U CN212569885U CN 212569885 U CN212569885 U CN 212569885U CN 202021513669 U CN202021513669 U CN 202021513669U CN 212569885 U CN212569885 U CN 212569885U
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- relay
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- electromagnetic lock
- power supply
- control system
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Abstract
The utility model discloses an access control system relates to access control system technical field, and this system includes: the device comprises a first switch, a first relay, a second switch, a second relay, an electromagnetic lock and a direct-current power supply; the first relay is connected with the first switch, the second switch is connected with the first relay, the second relay is connected with the first relay and the second switch, the electromagnetic lock is connected with the second relay, and the direct-current power supply is connected with the first switch, the first relay, the second relay and the electromagnetic lock to form a closed loop; the first and second switches are configured to: when the first switch is closed, the electromagnetic lock is powered off and unlocked; when the first switch is opened and the second switch is closed, the electromagnetic lock is powered off and unlocked. The utility model discloses can reduce entrance guard's cost, save engineering cost.
Description
Technical Field
The utility model relates to an access control system technical field, in particular to access control system.
Background
The entrance guard control system is a novel modern safety management system, is an effective measure for realizing safety precaution management at an entrance and an exit of an important building, and becomes an indispensable ring for realizing safety precaution at the entrance and the exit of the building. It is suitable for various buildings, such as hotels, machine rooms, offices, factories, etc.
Along with the increasing requirements of building safety and protection, the access control system not only needs to complete the attraction or release of the access control according to daily management requirements, but also needs to release the access control and open a channel in a fire-fighting state, thereby providing conditions for people evacuation.
The integrated access control device is mostly used in the prior art, but the integrated access control device has higher manufacturing cost, a large building needs more places for setting the access control, and if the integrated access control device is adopted, the engineering cost of the large building is greatly increased.
Disclosure of Invention
An embodiment of the utility model provides an access control system to use integrated form access controller in solving the correlation technique, the higher technical problem of engineering cost.
In a first aspect, an access control system is provided, including: the device comprises a first switch, a first relay, a second switch, a second relay, an electromagnetic lock and a direct-current power supply;
the first relay is connected with the first switch, the second switch is connected with the first relay, the second relay is connected with the first relay and the second switch, the electromagnetic lock is connected with the second relay, and the direct-current power supply is connected with the first switch, the first relay, the second relay and the electromagnetic lock to form a closed loop;
the first and second switches are configured to: when the first switch is closed, the electromagnetic lock is powered off and unlocked; when the first switch is opened and the second switch is closed, the electromagnetic lock is powered off and unlocked.
In some embodiments, one end of the first switch is connected to the positive electrode of the dc power supply, and the other end of the first switch is connected to the input end of the control coil of the first relay;
the normally closed contact of the first relay is connected with the positive pole of the direct current power supply, the output end of the control coil of the first relay is connected with the negative pole of the direct current power supply, and the common end of the first relay is connected with the normally closed contact of the second relay;
one end of the second switch is connected with the common end of the first relay, and the other end of the second switch is connected with the input end of the control coil of the second relay;
the output end of the control coil of the second relay is connected with the negative electrode of the direct-current power supply, the public end of the first relay is connected with the input end of the control coil of the electromagnetic lock, and the output end of the control coil of the electromagnetic lock is connected with the negative electrode of the direct-current power supply.
In some embodiments, the first switch is a rotary switch.
In some embodiments, the first relay is a two-open two-close relay.
In some embodiments, the second switch is a rebound button switch.
In some embodiments, the second relay is a time relay.
In some embodiments, the dc power supply is at a voltage value of no more than 24V.
The utility model provides a beneficial effect that technical scheme brought includes:
the embodiment of the utility model provides an entrance guard control system, through setting up first switch, first relay, second switch and second relay, both satisfied normal personnel access door, when satisfying the fire control problem again and taking place, the electromagnetic lock loses the electricity and releases the passway door, guarantees that the passway door is opened all the time under the fire control demand. The switch and the relay are common electronic devices, the use cost is low, the integrated access controller can be replaced, and the engineering cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a system schematic diagram of an access control system provided by an embodiment of the present invention;
in the figure: 1. a first switch; 2. a first relay; 3. a second switch; 4. a second relay; 5. an electromagnetic lock; 6. a direct current power supply.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The embodiment of the utility model provides an access control system, it can solve current access control system and use integrated form access controller, the higher technical problem of engineering cost.
Referring to fig. 1, an access control system includes: the device comprises a first switch 1, a first relay 2, a second switch 3, a second relay 4, an electromagnetic lock 5 and a direct-current power supply 6;
Specifically, as shown in fig. 1, one end of the first switch 1 is connected to the positive electrode of the dc power supply 6, and the other end is connected to the input end of the control coil of the first relay 2. The normally closed contact of the first relay 2 is connected with the anode of the direct current power supply 6, the output end of the control coil of the first relay 2 is connected with the cathode of the direct current power supply 6, and the common end of the first relay 2 is connected with the normally closed contact of the second relay 4. One end of the second switch 3 is connected with the common end of the first relay 2, and the other end is connected with the input end of the control coil of the second relay 4. The output end of the control coil of the second relay 4 is connected with the negative electrode of the direct-current power supply 6, the public end of the first relay 2 is connected with the input end of the control coil of the electromagnetic lock 5, and the output end of the control coil of the electromagnetic lock 5 is connected with the negative electrode of the direct-current power supply 6.
The first switch 1 and the second switch 3 are configured to: when the first switch 1 is closed, the electromagnetic lock 5 is powered off and unlocked; when the first switch 1 is opened and the second switch 3 is closed, the electromagnetic lock 5 is powered off and unlocked.
The embodiment of the utility model provides an in entrance guard control system, its theory of operation as follows:
referring to fig. 1, the first switch 1 corresponds to a fire-fighting signal, if there is a fire-fighting problem, the first switch 1 is closed, and if there is no fire-fighting problem, the first switch 1 is opened. Preferably, the first switch 1 is a rotary switch.
Supposing that there is no fire-fighting problem, the first switch 1 and the second switch 3 are both opened, the normally closed contact of the first relay 2 is closed, the normally closed contact of the second relay 4 is closed, the electromagnetic lock 5 and the power supply form a power supply loop, and the electromagnetic lock 5 works to lock the passage door. When the passage door needs to be opened, the second switch 3 is closed, the control coil of the second relay 4 is connected into the circuit, the normally closed contact of the second relay 4 is disconnected, the power supply loop of the electromagnetic lock 5 is disconnected, and the passage door is opened. Preferably, the second switch 3 is a rebound button switch and the second relay 4 is a time relay. After the rebound button of the second switch 3 is pressed, the normally closed contact of the second relay 4 is disconnected, the electromagnetic lock 5 loses power to release the passage door, meanwhile, the relay starts to delay, after a person passes through the passage door, the second relay 4 acts, the normally closed contact is closed, and the electromagnetic lock 5 recovers power supply and locks the passage door.
The fire-fighting problem is supposed to appear, the first switch 1 is closed, the control coil of the first relay 2 is connected into the circuit, the normally closed contact of the first relay 2 is disconnected, namely the first relay 2 is disconnected, the power supply circuit of the electromagnetic lock 5 is disconnected, the electromagnetic lock 5 loses power to release the access door, and the access door is opened, so that the fire-fighting safety is guaranteed. Preferably, the first relay 2 is a two-open two-close relay.
Compared with the prior art, the embodiment of the utility model provides an entrance guard control system through setting up first switch 1, first relay 2, second switch 3 and second relay 4, has both satisfied normal personnel access door, when satisfying the fire control problem again and taking place, and 5 lose electricity release passways doors of electromagnetic lock guarantee that passways are opened all the time under the fire control demand. The switch and the relay are common electronic devices, the use cost is low, the integrated access controller can be replaced, and the engineering cost is reduced.
As an optional implementation mode, the voltage value of the direct current power supply 6 does not exceed 24V, and under the condition that the electromagnetic lock 5 works, the power utilization safety is ensured.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
It is noted that, in the present invention, relational terms such as "first" and "second", and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. An access control system, comprising: the device comprises a first switch, a first relay, a second switch, a second relay, an electromagnetic lock and a direct-current power supply;
the first relay is connected with the first switch, the second switch is connected with the first relay, the second relay is connected with the first relay and the second switch, the electromagnetic lock is connected with the second relay, and the direct-current power supply is connected with the first switch, the first relay, the second relay and the electromagnetic lock to form a closed loop;
the first and second switches are configured to: when the first switch is closed, the electromagnetic lock is powered off and unlocked; when the first switch is opened and the second switch is closed, the electromagnetic lock is powered off and unlocked.
2. The access control system of claim 1, wherein:
one end of the first switch is connected with the positive electrode of the direct-current power supply, and the other end of the first switch is connected with the input end of the control coil of the first relay;
the normally closed contact of the first relay is connected with the positive pole of the direct current power supply, the output end of the control coil of the first relay is connected with the negative pole of the direct current power supply, and the common end of the first relay is connected with the normally closed contact of the second relay;
one end of the second switch is connected with the common end of the first relay, and the other end of the second switch is connected with the input end of the control coil of the second relay;
the output end of the control coil of the second relay is connected with the negative electrode of the direct-current power supply, the public end of the first relay is connected with the input end of the control coil of the electromagnetic lock, and the output end of the control coil of the electromagnetic lock is connected with the negative electrode of the direct-current power supply.
3. The access control system of claim 1, wherein: the first switch is a knob switch.
4. The access control system of claim 1, wherein: the first relay is two-open two-close relays.
5. The access control system of claim 1, wherein: the second switch is a rebound button switch.
6. The access control system of claim 1, wherein: the second relay is a time relay.
7. The access control system of claim 1, wherein: the voltage value of the direct current power supply does not exceed 24V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021513669.8U CN212569885U (en) | 2020-07-27 | 2020-07-27 | Access control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021513669.8U CN212569885U (en) | 2020-07-27 | 2020-07-27 | Access control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212569885U true CN212569885U (en) | 2021-02-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021513669.8U Active CN212569885U (en) | 2020-07-27 | 2020-07-27 | Access control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212569885U (en) |
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2020
- 2020-07-27 CN CN202021513669.8U patent/CN212569885U/en active Active
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