KR20040025722A - Electric rocker for high voltage terminal box - Google Patents

Abstract

PURPOSE: An electric lock is provided to prevent vibration of a solenoid and extends lifetime of the solenoid by maintaining constantly a gap between the solenoid and the locking bar in order not to transmit directly a shock to a movable steel core of the solenoid. CONSTITUTION: An electric lock includes a drawing part(132), a coupling section(111), a couple of bars(112), a locking bar(114), a couple of bolts(116,117), and a fixing part(150). The drawing part(132) is combined with a movable steel section of a solenoid. The drawing part includes a combing groove(132a). The coupling section(111) is inserted into the drawing part(132). The bars(112) are rotatably combined with the coupling section by using a hinge part(111a). The locking bar(114) is combined with the bars by using a joint part(113). A long hole(115) is formed at the locking bar. The bolts(116,117) are used for supporting the bars and the locking bar. The bolts and the solenoid are combined each other by the fixing part(150).

Description

Electric lock {Electric rocker for high voltage terminal box}

The present invention relates to an electric lock, and more particularly, to an electric lock for use in a safety terminal box for a high pressure motor.

Conventional electric locks usually have a structure that is actuated by the drive of a solenoid, and almost all electric doors have only a one-sided structure that allows the locked lock to be opened.

Therefore, an electric lock having a configuration for locking the door by itself has not been conceived until now, and in particular, an electric lock has not been developed for use in a high voltage terminal box that requires much attention to opening and closing of the door due to the safety of the operator.

That is, the terminal box for the high voltage motor is mainly used for power control of the high voltage motor, and the high voltage motor is installed in a large and poor environment such as a chemical plant and a power plant.

In addition, since the high-voltage motor is usually far away from the main terminal box, it is too far for the operator to install the main terminal box for repairing the high-voltage motor. Therefore, another auxiliary terminal box near the high-voltage motor, that is, the terminal box for the high-voltage motor Is installing.

Therefore, when the A / S worker breaks down the high voltage motor and tries to repair it, the A / S worker cuts off the power supply of the main terminal box first, then shuts off the terminal box for the high voltage motor and repairs the high voltage motor. Since it is not caught by the eyes, other workers who do not know that the high-voltage motor is being repaired are often turned on. Even after the main terminal box is powered on, other workers turn on the power of the terminal box for the high-voltage motor to repair the motor. Is caused by a number of accidents that cause an electric shock and death.

Therefore, the present inventors intended to manufacture a high-voltage terminal box to protect the A / S workers by preventing the high-voltage terminal box is opened when electricity is drawn from the main terminal box for the high-voltage motor terminal box, but there is no appropriate electric lock to solve this problem. It was not.

Therefore, the present invention is to provide a new structure of the electric lock to significantly improve the high-voltage terminal box to enable the safety of the operator.

1-an exploded perspective view of the present invention.

2-a perspective view of the combined state of the invention.

Figure 3 is a perspective view of the use state of the present invention.

* Explanation of symbols for main parts of the drawings

100: electric lock

111: engaging table 111a: hinge part

112: bar 112a: through-hole

112b: bolt 112c: through hole

113: joint

114: brace 114a: through hole

115: long sword

116: coupling bolt 117: support bolt

130: solenoid

132: tow 132a: coupling groove

A: enclosure B: door

E: door closer

The present invention will be described in detail with reference to the accompanying drawings.

The electric lock 100 of the present invention, as shown in FIG. 1, a well-known solenoid 131, a tow 132 that is coupled to the movable iron piece of the solenoid and comprises a coupling groove 132a, and the tow port Coupled to the coupling 111 to be coupled to the pair of bars 112 that are rotatably coupled by the hinge portion (111a) to the coupling, and coupled to the bar by the joint portion 113 and the long hole 115 The perforated lock bar 114, bolts 116 and 117 for supporting the bar 112 and the lock bar 114, and the lock fixture 150 to which the bolts 116 and 117 and the solenoid are coupled.

One side of the bar 112 is a through hole (112a) is perforated is coupled to the coupling bolt 116 into the through hole. In this case, the coupling bolt 116 serves as a lever of the bar 112 so that both ends of the bar 112 can be advanced when the coupling 111 is pulled by the solenoid.

At this time, both ends of the bar 112 are formed with a joint part 113, and one end of the locking bar is coupled to the joint part, so that both ends of the bar 112 are advanced, so that the locking bar 114 is also advanced. will be.

In addition, since the support bolt 117 penetrates through the long hole 115 of the lock bar 114, the lock bar 114 is allowed to move forward and backward without hitting left and right.

The joint portion 113 is formed by rotatably coupling one end of the bar 112 and one end of the locking bar 114 with the bolt 112b.

In this case, in order to be able to adjust the advance distance of the locking bar 114, a plurality of through holes 112c at one end of the bar and a plurality of through holes 114a at one end of the lock bar 114 may be formed.

In addition, the electric lock 100 of the present invention does not allow the solenoid and the lock bar 114 to be firmly coupled to each other, but is directly coupled to the movable iron core of the solenoid by being coupled with a slight play by the hinge 111a and the joint 113. Force was not applied and this prevented the solenoid from ringing and reducing its lifespan.

The electric lock of the present invention having the configuration as described above has a structure in which the solenoid is driven when electricity is applied, and the lock bar can be moved forward by the drive of the solenoid, so that the door can be locked when mounted on the door.

Therefore, when the present invention is installed in the high-voltage terminal box and the power supply of the terminal box is connected, the door of the high-voltage terminal box can be blocked at the moment the power of the main terminal box is turned on.

Therefore, the door of the high voltage terminal box cannot be opened by the lock bar until the power of the main terminal box is turned off, so that power is not applied to the high voltage motor, thereby protecting the A / S worker who is repairing the high voltage motor. .

Of course, the present invention can be applied to various technical fields as well as opening and closing the door of the high-voltage terminal box.

As such, the electric lock of the present invention has a structure that allows the lock bar to move forward by the operation of the solenoid when the electric lock is applied, so that the door can be locked, and the solenoid and the lock bar are slightly opened by the hinge part and the joint part. It is designed to prevent the ringing and life of the solenoid from being reduced by preventing shock and force from being applied directly to the movable core of the solenoid by being coupled in a state having a clearance of.

Claims (1)

In the electric lock using a known solenoid, Tow 132 is coupled to the movable iron piece of the solenoid and having a coupling groove 132a, a coupling table 111 to be fitted to the traction opening 132, hinge portion 111a to the coupling table A pair of bars 112 that are rotatably coupled by a pair, a locking bar 114 coupled to the bar by a joint portion 113 and having a long hole 115 perforated, the bars 112, and a locking bar 114. An electric lock for a high voltage terminal box, characterized in that consisting of a bolt (116,117) for supporting), and a lock fixture (150) to which the bolt (116,117) and the solenoid are coupled.