CN214670966U - Cable anti-theft alarm device for dual power supplies - Google Patents
Cable anti-theft alarm device for dual power supplies Download PDFInfo
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- CN214670966U CN214670966U CN202120648568.XU CN202120648568U CN214670966U CN 214670966 U CN214670966 U CN 214670966U CN 202120648568 U CN202120648568 U CN 202120648568U CN 214670966 U CN214670966 U CN 214670966U
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Abstract
The utility model discloses a cable burglar alarm for dual supply, including A way power supply circuit and B way power supply circuit: a way power supply circuit includes first alarm, first relay and first contactor, B way power supply circuit includes second alarm, second relay and second contactor, A way power supply circuit and B way power supply circuit interlocking. The utility model discloses a cable burglar alarm for dual supply utilizes two way power mutual interlocking principle, goes to reflect the electric elements state on another way power through the electric elements on-off state of power all the way to send out the police dispatch newspaper through the alarm, let the person on duty can in time rush to the scene and prevent the cable destruction, avoid equipment loss to enlarge.
Description
Technical Field
The utility model relates to a supply distribution equipment technical field, in particular to a cable burglar alarm for dual supply.
Background
The general enterprises have a plurality of first-class loads, and if the power supply of the loads is interrupted, the personal injury or death can be caused, or the power supply is interrupted, so that the political and economic losses can be caused. In order to ensure the normal operation of these devices, two power supplies are generally used for supplying power. However, as the core wire of the power supply cable is copper which is a relatively expensive nonferrous metal, lawless persons are often called to steal and cut, and great equipment loss is caused to enterprises.
In the prior art, some electrical monitoring equipment for preventing the distribution cable from being stolen and cut are adopted, the principle of chip technology detection and control is mostly adopted, the circuit structure is complex, the cost is high, and damage faults such as burning are easy to occur.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a cable burglar alarm for dual supply utilizes two way power mutual interlocking principle, goes to reflect the electric elements state on another way power through the electric elements on-off state of power all the way to send out the police dispatch newspaper through the alarm, let the person on duty can in time rush to the scene and prevent the cable destruction, avoid equipment loss to enlarge.
In order to achieve the above object, the utility model provides a following technical scheme:
a cable anti-theft alarm device for double power supplies comprises an A-way power supply circuit and a B-way power supply circuit:
the circuit of the power supply comprises a circuit A and a circuit B, wherein the circuit A comprises a first alarm, a first relay and a first contactor, two ends of a first relay coil are connected between a zero line and a live line of the circuit A, two ends of a first contactor coil are connected between the other two live lines, and the first alarm is connected between the zero line and the live line;
the B-path power supply circuit comprises a second alarm, a second relay and a second contactor, two ends of a coil of the second relay are connected between a zero line and a live line of the B-path power supply, two ends of a coil of the second contactor are connected between the other two live lines, and the second alarm is connected between the zero line and the live line;
a normally open contact of the first relay is connected in series with one end of the first contactor coil, and a normally closed contact of the first contactor is connected in series with one end of the second alarm; and a normally open contact of the second relay is connected in series with one end of the coil of the second contactor, and a normally closed contact of the second contactor is connected in series with one end of the first alarm.
Optionally, the first relay and the second relay are intermediate relays or solid state relays.
Optionally, the first alarm and/or the second alarm are/is an audible alarm.
Optionally, the first alarm and/or the second alarm are flashing alarms.
Optionally, the first alarm and/or the second alarm are/is an audible and visual alarm.
Optionally, the first alarm and the second alarm are arranged in a duty room.
Optionally, the two ends of the first contactor coil are connected between live wires L1 and L2 of the a-way power supply circuit, the first alarm is connected between the zero line and live wire L2 of the a-way power supply circuit, and the two ends of the first relay coil are connected between the zero line and live wire L3 of the a-way power supply circuit.
Optionally, the two ends of the second contactor coil are connected between live wires L1 and L2 of the B-way power supply circuit, the second alarm is connected between the zero line and live wire L2 of the B-way power supply circuit, and the two ends of the second relay coil are connected between the zero line and live wire L3 of the B-way power supply circuit.
According to the above technical scheme, the utility model provides a cable burglar alarm for dual supply utilizes two way power mutual interlocking principle, goes to reflect the electric elements state on another way power through the electric elements on-off state of the power all the way to send out the police dispatch newspaper through the alarm, let the person on duty can in time rush to the scene and prevent the cable destruction, avoid equipment loss to enlarge. The relay and the contactor are utilized to carry out interlocking control, and the structure is simple and easy to implement, good in stability and strong in reliability.
In addition, audible and visual alarms are adopted by the first alarm and the second alarm, so that an alarm can be given out quickly, and security personnel can respond quickly. Through arranging first alarm and second alarm in the room on duty, the security personnel of being convenient for in time acquire alarm information.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic circuit diagram of a cable burglar alarm for dual power supply according to an embodiment of the present invention.
Wherein:
1. a first alarm; 2. a second alarm; 3. a first relay; 301. a first relay normally open contact; 4. a second relay; 401. a second relay normally open contact; 5. a first contactor; 501. a first contactor normally closed contact; 6. a second contactor; 601. and the second contactor is used for normally closing the contact.
Detailed Description
The utility model discloses a cable burglar alarm for dual supply utilizes two way power mutual interlocking principle, goes to reflect the electric elements state on another way power through the electric elements on-off state of power all the way to send out the police dispatch newspaper through the alarm, let the personnel on duty can in time rush to the scene and prevent the cable destruction, avoid equipment loss to enlarge.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the utility model provides a cable burglar alarm for dual power supply, including a way power supply circuit and B way power supply circuit: a way power supply circuit includes first alarm 1, first relay 3 and first contactor 5, and the both ends of 3 coils in first relay are connected between the zero line and the live wire of A way power, and the both ends of 5 coils in first contactor are connected between two other live wires, and first alarm 1 is connected between zero line and live wire.
The B way power supply circuit includes second alarm 2, second relay 4 and second contactor 6, and the both ends of 4 coils of second relay are connected between the zero line and the live wire of B way power, and the both ends of 6 coils of second contactor are connected between two other live wires, and second alarm 2 is connected between zero line and live wire.
A first relay normally-open contact 301 is connected in series with one end of a coil of a first contactor 5, and a first contactor normally-closed contact 501 is connected in series with one end of a second alarm 2; the second relay normally open contact 401 is connected in series with one end of the coil of the second contactor 6, and the second contactor normally closed contact 601 is connected in series with one end of the first alarm 1.
The utility model discloses a cable burglar alarm for dual supply utilizes two way power mutual interlocking principle, goes to reflect the electric elements state on another way power through the electric elements on-off state of power all the way to send out the police dispatch newspaper through the alarm, let the person on duty can in time rush to the scene and prevent the cable destruction, avoid equipment loss to enlarge. The relay and the contactor are utilized to carry out interlocking control, and the structure is simple and easy to implement, good in stability and strong in reliability.
In one embodiment, as shown in fig. 1, a cable burglar alarm device for dual power supply includes an a-way power circuit and a B-way power circuit:
a way power supply circuit includes first alarm 1, first relay 3 and first contactor 5, and the both ends of 3 coils in first relay are connected between zero line N and live wire L3 of A way power, and the both ends of 5 coils in first contactor are connected between two other live wires L1 and L2, and first alarm 1 is connected between zero line N and live wire L2.
The B way power supply circuit includes second alarm 2, second relay 4 and second contactor 6, and the both ends of 4 coils of second relay are connected between zero line N and live wire L3 of B way power, and the both ends of 6 coils of second contactor are connected between two other live wires L1 and L2, and second alarm 2 is connected between zero line N and live wire L2.
Specifically, the first relay normally open contact 301 is connected in series to one end of the coil of the first contactor 5, and controls whether the coil of the first contactor 5 is electrified or not. The normally closed contact 501 of the first contactor is connected in series with one end of the second alarm 2 to control whether the second alarm 2 is powered on. The second relay normally open contact 401 is connected in series with one end of the coil of the second contactor 6 to control whether the coil of the second contactor 6 is electrified. The second contactor normally closed contact 601 is connected in series with one end of the first alarm 1 to control whether the first alarm 1 is powered on.
In a specific embodiment of the present invention, as shown in fig. 1, the first relay 3 and the second relay 4 specifically employ an intermediate relay or a solid-state relay.
In a specific embodiment of the present invention, as shown in fig. 1, the first alarm 1 and/or the second alarm 2 specifically employs an audible and visual alarm, an audible alarm, or a flashing alarm. It will be appreciated that the first alarm 1 and the second alarm 2 may also incorporate wireless transmission modules to send alarm signals to the central control room of the plant. Furthermore, a communication module can be integrated to send an alarm short message to related security personnel.
In order to facilitate the person on duty to obtain alarm information, the first alarm 1 and the second alarm 2 are arranged in a duty room.
Through specifically adopting audible-visual annunciator's first alarm 1 and second alarm 2, can send out the police dispatch newspaper fast, the security personnel of being convenient for react rapidly. Through arranging first alarm 1 and second alarm 2 on showing the position in the room on duty, the security personnel of being convenient for in time acquire alarm information.
The utility model is used for dual supply's cable burglar alarm operating principle as follows:
under the normal condition, A way power supply circuit and B way power supply circuit all have the electricity, and the coil of first relay 3 and second relay 4 gets electric, and first relay normally open contact 301 and second relay normally open contact 401 are closed, and first contactor 5 and second contactor 6 coil get electric, and first contactor normally closed contact 501 and second contactor normally closed contact 601 disconnection, first alarm 1 and second alarm 2 do not have the electricity and do not report to the police.
When any line in L3 or zero line N in the power circuit of A way is stolen and cut, then the power disconnection of 3 coils of first relay in figure 1 loses the electricity, first relay normally open contact 301 breaks, first contactor 5 loses the electricity, first contactor normally closed contact 501 resets and closes in the power circuit of B way, the return circuit that L2, N and second alarm 2 constitute is put through, send alarm signal, security personnel on duty can carry out the circuit inspection immediately, under the condition that the thief has not yet stolen whole cable, can catch the thief.
When any line of the L1 or the L2 in the A-way power circuit is stolen and cut, the power supply of the coil of the first contactor 5 in the graph 1 is disconnected and loses power, the normally closed contact 501 of the first contactor is reset and closed, the L2 and the N in the B-way power supply are connected with the second alarm 2, an alarm signal is sent, an on-duty security worker can immediately perform line patrol, and the thief can be caught under the condition that the whole cable is not completely stolen and cut by the thief.
When any line of L3, N, L1 or L2 in the B-path power supply is cut, the alarm action principle is consistent with the A-path power supply circuit, and the details are not repeated here.
The utility model is used for cable burglar alarm of dual supply utilizes two way power mutual interlocking principle, goes to reflect the electric elements state on another way power through the electric elements on-off state of power all the way to send out the police dispatch newspaper through the alarm, let the person on duty can in time rush to the scene and prevent the cable and steal, avoid equipment loss to enlarge.
In the description of the present solution, it is to be understood that the terms "upper", "lower", "vertical", "inside", "outside", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present solution.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present 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 (8)
1. The utility model provides a cable burglar alarm for dual supply which characterized in that, includes A way power supply circuit and B way power supply circuit:
the circuit of the power supply of the A path comprises a first alarm (1), a first relay (3) and a first contactor (5), wherein two ends of a coil of the first relay (3) are connected between a zero line and a live line of the power supply of the A path, two ends of a coil of the first contactor (5) are connected between the other two live lines, and the first alarm (1) is connected between the zero line and the live line;
the B-path power supply circuit comprises a second alarm (2), a second relay (4) and a second contactor (6), two ends of a coil of the second relay (4) are connected between a zero line and a live line of the B-path power supply, two ends of a coil of the second contactor (6) are connected between the other two live lines, and the second alarm (2) is connected between the zero line and the live line;
a first relay normally open contact (301) is connected in series with one end of a coil of the first contactor (5), and a first contactor normally closed contact (501) is connected in series with one end of the second alarm (2); the second relay normally open contact (401) is connected in series at one end of a coil of the second contactor (6), and the second contactor normally closed contact (601) is connected in series at one end of the first alarm (1).
2. The cable burglar alarm arrangement for dual power supply according to claim 1, characterized in that said first relay (3) and second relay (4) are intermediate relays or solid state relays.
3. The cable burglar alarm arrangement for dual power supply according to claim 1, characterized in that said first alarm (1) and/or second alarm (2) is an acoustic alarm.
4. The cable burglar alarm arrangement for dual power supply according to claim 1, characterized in that said first alarm (1) and/or second alarm (2) is a flashing alarm.
5. The cable burglar alarm arrangement for dual power supply according to claim 1, characterized in that said first alarm (1) and/or second alarm (2) is an audible and visual alarm.
6. The cable burglar alarm arrangement for dual power supply according to claim 1, characterized in that said first alarm (1) and second alarm (2) are disposed in a duty room.
7. The cable burglar alarm arrangement for dual power supply according to claim 1, characterized in that both ends of the coil of said first contactor (5) are connected between live wires L1 and L2 of said a-line power circuit, said first alarm (1) is connected between neutral wire and live wire L2 of said a-line power circuit, and both ends of the coil of said first relay (3) are connected between neutral wire and live wire L3 of said a-line power circuit.
8. The cable burglar alarm arrangement for dual power supply according to claim 1, characterized in that both ends of said coil of said second contactor (6) are connected between live lines L1 and L2 of said B-line power circuit, said second alarm (2) is connected between neutral line and live line L2 of said B-line power circuit, and both ends of said coil of said second relay (4) are connected between neutral line and live line L3 of said B-line power circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120648568.XU CN214670966U (en) | 2021-03-30 | 2021-03-30 | Cable anti-theft alarm device for dual power supplies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120648568.XU CN214670966U (en) | 2021-03-30 | 2021-03-30 | Cable anti-theft alarm device for dual power supplies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214670966U true CN214670966U (en) | 2021-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120648568.XU Active CN214670966U (en) | 2021-03-30 | 2021-03-30 | Cable anti-theft alarm device for dual power supplies |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214670966U (en) |
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2021
- 2021-03-30 CN CN202120648568.XU patent/CN214670966U/en active Active
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