CN201194125Y

CN201194125Y - Bridge breaking alarm device

Info

Publication number: CN201194125Y
Application number: CNU2008200453618U
Authority: CN
Inventors: 张润丽; 刘为淼
Original assignee: DONGGUAN CHANG'AN XIAGANG ELEMENTARY SCHOOL
Current assignee: DONGGUAN CHANG'AN XIAGANG ELEMENTARY SCHOOL
Priority date: 2008-03-25
Filing date: 2008-03-25
Publication date: 2009-02-11
Anticipated expiration: 2018-03-25

Abstract

The object of the utility model is to provide an alarming device for broken bridge. A power supply, a switch and a coil packet of an electric relay are serially connected in turn, and at least one alarm device is bridged on the other end of the power after the switch and a normally closed contact of the electric relay. The alarm device is an alarm lamp or an alarm horn. The circuit between the switch and the electric relay coil packet extends to the whole bridge as a detection line. When the bridge-cut-off accident occurs, the detection line is simultaneous broken off, and causes the action of the electric relay to turn on the circuit of the alarm lamp or the alarm horn, thereby the alarm function of the broken bridge is realized. The alarming device of the utility model has advantages that the structure of the alarm device is simple and reliable, the running vehicles and people can be reminded at once of the bridge broken occurrence, the further expansion of the incident casualty and loss is effectively prevented, and an important action is played at the critical moment.

Description

Bridge fracture warning device

Technical field

The utility model relates to a kind of alarm, more particularly, relates to a kind of bridge fracture warning device.

Background technology

Some bridge takes place by after the incident of severing, and the road conditions of front move on, so only just recognize emergency brake when closing on fracture place because the vehicle that travels on bridge floor can not be released immediately.Too late if brake, then can connect the people and be with car to crash in the river.Like this can cause bigger casualties and property loss to this unscheduled event.In order to allow the road conditions of knowing the front in the vehicle very first time of bridge floor, when the generation bridge cut-off is unexpected, be unlikely to move on and travel, need a kind of device that can carry out detection alarm to the bridge floor integrity.

Summary of the invention

The purpose of this utility model provides a kind of bridge fracture warning device.

For achieving the above object, the utility model is taked following technical scheme:

Bridge fracture warning device, the coil bag of power supply, switch, relay is connected in series successively; The common of relay is connected with an end of power supply, has at least one warning electrical appliance to be connected across on the normally closed contact of the other end of the power supply behind the switch and relay.

Described warning electrical appliance is alarm lamp or warning signal;

Alarm lamp and warning signal evenly are installed in a side of bridge along bridge floor, switch to the circuit of relay line bag is extended to whole bridge section and as surveying line.When the bridge cut-off accident took place, this detection line can rupture in the lump, thereby causes the actuating of relay, connected the circuit of alarm lamp or warning signal, made that alarm lamp or the warning signal on bridge moved, thereby realized the function that bridge cut-off is reported to the police.

The bridge floor of two way only needs at the opposite side of bridge identical warning device to be installed also and gets final product.

The beneficial effects of the utility model are: warning device is simple in structure, reliable, can remind vehicle and pedestrian in travelling when the bridge cut-off accident takes place immediately, prevents that effectively unscheduled event injures and deaths, loss from further enlarging, and given play to important effect at crucial moment.

Description of drawings

Fig. 1 is the circuit diagram of the utility model embodiment.

Description of reference numerals: 1-power supply; The 2-switch; The 3-relay; 4-coil bag; 5 common; The 6-alarm lamp; The 7-warning signal; The 8-normally closed contact.

Embodiment

Below in conjunction with drawings and Examples the utility model content is described further.

As shown in Figure 1, the coil bag 4 of power supply 1, switch 2, relay 3 is connected in series successively; The common 5 of relay 3 is connected with the negative pole of power supply 1, has a series of alarm lamps 6 and a warning signal 7 to be connected across on the normally closed contact 8 of the anodal and relay 3 of power supply 1 behind the switch 2.Alarm lamp 6 and warning signal 7 evenly are installed in a side of bridge along bridge floor, switch 2 to the circuit of coil bag 4 is extended to whole bridge section and as surveying line.

What this instructions was enumerated is better embodiment of the present utility model only, and all equivalent technologies conversion of being done under principle of work of the present utility model and thinking all are considered as protection domain of the present utility model.

Claims

1. bridge fracture warning device, it is characterized in that: the coil bag of power supply, switch, relay is connected in series successively; The common of relay is connected with an end of power supply, has at least one warning electrical appliance to be connected across on the normally closed contact of the other end of the power supply behind the switch and relay.

2. according to the described bridge fracture of claim 1 warning device, it is characterized in that: described warning electrical appliance is alarm lamp or warning signal.