CN2073158U

CN2073158U - Ball type tilting switch

Info

Publication number: CN2073158U
Application number: CN 90221048
Authority: CN
Inventors: 吴伟
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-09-22
Filing date: 1990-09-22
Publication date: 1991-03-13

Abstract

The utility model relates to a novel switch, which belongs to a sensor class and can detect the change of a level included angle and has good directivity. The inside of the sensor is provided with more than two electrodes, and electrodes support a rolling conducting body. When the sensor inclines along a plane direction formed by the electrodes and the rolling conducting body, the rolling conducting body is switched on or separated from the electrodes in virtue of rolling for switching on or breaking a controlled circuit. When the sensor inclines vertically to a plane formed by the electrodes and the rolling conducting body, the rolling conducting body is clamped by the two walls of the sensor and keeps an original on-off state constant.

Description

Ball type tilting switch

The invention belongs to transducer class switch, can be widely used in monitoring crane class machinery oblique arm angle change.

There are many occasions to report to the police to the object tilt angle monitor.Arm is excessive or too smallly all can be directed at accident to the ground angle when hanging thing as crane.Chinese patent application number 88220729, the 6 horizontal tilt alarms of introducing can be monitored this angle variation effectively and be reported to the police, but the impulse force that produces when the arm left rotation and right rotation also may trigger the transducer action and false alarm.

The purpose of this invention is to provide a kind of novel sensor class switch that very strong directivity can the detection level variable angle be arranged again, state deficiency to fill.

The present invention finishes as follows.Be equipped with 2 in the transducer with top electrode, electrode is held rotatable ball or cylindrical conductor.When the in-plane that constitutes along electrode and rolling conductor when transducer tilted, the rolling conductor was connected with electrode because of rolling or is separated, thereby is switched on or switched off controlled circuit.When transducer tilted along the in-plane perpendicular to electrode and rolling conductor formation, the rolling conductor was clamped by transducer two walls and is still kept original on off state constant.

Below in conjunction with accompanying drawing invention is described in further detail:

Fig. 1 is concrete structure figure of the present invention.Referring to Fig. 1.Be fixed with electrode (3), (4), (5), (6) on the shell (1), rolling conductor (2) falls among the electrode (5) (6), and electrode (5) (6) constitutes a pair of normally closed interlock.When transducer was tilted to the right, the rolling conductor fell into electrode (4) (6) because of centre-of gravity shift, and electrode (4) (6) is connected, and electrode (5) (6) disconnects simultaneously.When transducer when the electrode direction tilts, sensor outer housing (1) is clamped rolling conductor (2), has just protected rolling moving-conductor (2) and has still fallen among the electrode (5) (6).

Number of poles in the sensor can increase and decrease as required.Just can omit as electrode among Fig. 1 (3) (5), at this moment transducer just only has a pair of contact.

Fig. 2 is angle of inclination monitoring, alarming circuit theory diagrams.K switch wherein ₁Electrode in the corresponding diagram 1 (3) (5), K switch ₂Electrode in the corresponding diagram 1 (4) (6).When transducer is tilted to the left a certain angle, K ₁Conducting, alarm equipment alarm, when transducer is tilted to the right a certain angle, K ₂Conducting, alarm is reported to the police equally.

The embodiment of the invention is to be used for crane to prevent turning over warning.Its sensor construction such as Fig. 1, electrical schematic diagram such as Fig. 2 show.Shell (1) is suppressed (as using metal shell with bakelite, then shell (1) can be useed electrode as, but needs and other electrode insulation), electrode (3) (4) (5) (6) is made of brass, the lower end thread cutting to be being fixed on the shell (1), and is wired to warning circuit.Alarm adopts KD9561 integrated alarm circuit, and its power connection joins through K1K2 switch and battery.Transducer is contained in the suspension arm of crane sidepiece, when arm and ground angle are spent greater than 70 degree or less than 30, all reliably reports to the police, and has guaranteed the crane trouble free service.

Claims

1, a kind of transducer class switch is characterized in that switch is made up of shell (1), rolling conductor (2) and electrode (4), (6).

2, by the described switch of claim 1, the electrode that it is characterized in that being fixed on the shell (1) can have more than 2, and the adjacent electrode interval is less than the diameter of rolling conductor (2).

3, by the described switch of claim 1, the conductor (2) that it is characterized in that rolling can roll in shell (1) and touch mutually with 2 adjacent electrodes or break away from.