KR910004977Y1 - Safety device for a parking garage - Google Patents

Abstract

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Description

Safety device in mechanical two-level parking facility

1 is a schematic structural diagram of a conventional safety device.

2 is a conventional circuit diagram.

3 is a schematic structural diagram of a safety device of the present invention.

4 is a circuit diagram of the present invention.

* Explanation of symbols for main parts of the drawings

8: Solenoid operation detection limit switch 9: Mounting end

P: Lock device failure indication lamp 8a ₁ : contact a of the limit switch 8

8a ₂ : contact a of limit switch 8

The present invention relates to a safety device in a mechanical two-stage parking facility, and more particularly, to a safety device to support a lifting pallet.

The safety device of the conventional mechanical two-stage parking facility is composed of a unit using a solenoid. As driving commands were put in place, there were many difficulties in the management of parking lot facilities due to the burnout of chains or motors.

This will be described with reference to FIGS. 1 and 2 as follows.

In the circuit configuration diagram of FIG. 2, when the call registration buttons (No. 1 to No. n) of the lifting pallet 1 are pressed, the call registration relay A is driven to maintain the self-holding by the a contact Aa ₁ . Self-holding state, and when the transverse pallet is in the operation completion state, the operation completion relay is activated, so that the driving command relay S of the solenoid 7 and the solenoid operation timer T _{1 for a} predetermined period and the driving delay timer for a predetermined time ( K) will work.

Here, the solenoid operation timer (T1) for a predetermined time is operated after the set delay time to turn off the driving command relay (S) of the solenoid (7) the call registration butter (No.1-No) of the lifting pallet (1) of the two-stage parking facility. It is configured to continue to operate when pressing .n) to reduce unnecessary power consumption.

Here, the time delay is set so that the driving delay timer K operates for a predetermined period of time than the constant time solenoid operation timer T ₁ , and thus, a locking bar addressed to the solenoid 7 as shown in FIG. 1. As the bar 3 is released from the locking hook of the elevating pallet 1, the elevating pallet 1 is driven.

The present invention allows the driving command to be input after the safety device has been fully operated in view of the conventional problems as described above, and also installs an alarm display lamp so that the manager or the driver can easily identify the failure state of the safety device. The purpose is to provide a safety device of a mechanical two-stage parking equipment that can improve safety and reliability.

When described in detail by the accompanying drawings of the present invention as follows.

As shown in FIG. 3, the mounting plate 9 is fixedly installed at the rear end of the conventional solenoid 7 so as to "on" the operation detection limit switch 8 by the operation of the solenoid 7, The contact aa 8a ₁ of the detection limit switch 8 is connected in series with the contact aa Ka ₁ of the drive delay timer K and the lifting pallet drive circuit L, and the contact Aa of the call registration relay A is connected. ₅ ), the contact a (Ka ₂ ) of the drive delay timer (K), the contact b (8B ₁ ) of the solenoid operation detection limit switch 8 and the locking device fault indication lamp (P) are connected in series. The external circuit configuration is the same as the conventional one and given the same reference numeral.

Unexplained Ba _1- Ba ₃ is the contact a of the traverse pallet operation completion relay (B), Aa _2- Aa ₄ is the contact a of the call registration relay (A), Cb ₁ is the contact b of the call operation completion relay (C) , T ₁ b is contact b of solenoid actuating timer (T ₁ ) for a certain time, 4 is tension spring for solenoid return, 5 is spring adjustment screw, 6 is solenoid fixing bolt.

Referring to the effects of the present invention configured as described above are as follows.

When the lifting pallet calling operation buttons (No.1-No.n) in FIG. 2 are pressed, the call registration relay A is driven and at the same time, the contact b of the calling operation completion relay C (Cb ₁ ) is connected. State) and the contact a (Aa ₁ ) of the relay A makes the relay A a self-holding state.

In this state, when the operation of the traverse pallet is completed, as the operation completion relay (not shown) is operated, the contact a Ba ₁ and the contact a Aa ₄ of the relay A are connected, and the timer T ₁ is connected. The contact b (T ₁ b) of (timer T ₁ is not in the driving state is connected) is connected and the solenoid driving command relay S is activated.

In addition, a contact (Aa ₃ ), (Ba ₃ ) is connected to the operation timer (T ₁ ) is operated, a contact (Aa ₂ ), (Ba ₂ ) is connected, so that the driving delay timer (K) for a certain time do.

If the solenoid 7 is normally operated, the operation detecting limit switch 8 shown in Fig. 3 is operated so that the a contact 8a ₁ is connected, and the lifting pallet driving circuit L is operated.

However, when the solenoid 7 is not normally operated, the above-described operation detection limit switch 8 is turned off, and thus, the contact a of the abutment 8a ₁ is also opened, so that the power supply to the lifting pallet drive circuit L is cut off. At the same time, the contact b thereof 8b ₁ is connected and the locking device failure indication lamp P is turned on, so that the manager or the driver is informed that the locking device of the solenoid is in a failure state.

The present invention operated as described above not only prevents the cutting of the drive chain and the burning of the driving motor caused by the failure of the locking device of the lifting pallet, but also prevents the fall accident when the vehicle is mounted, as well as the solenoid. In case of malfunction and malfunction, the manager or driver can immediately indicate that the lamp is in a broken state by providing an indicator lamp. Thus, it is possible to provide a safety device for two-stage parking facilities that can improve safety and reliability.

Claims (1)

In the mechanical two-stage parking equipment, a mounting plate (9) is fixedly installed at the rear end of a normal solenoid (7) such that the detection limit switch (8) is turned on by the operation of the solenoid (7). The a contact 8a ₁ of the switch 8 is connected in series with the a contact Ka ₁ of the drive delay timer K and the lifting pallet drive circuit L, and the a contact Aa ₅ of the call registration relay A. ) And a contact (Ka ₂ ) of the drive delay timer (K) safety in a mechanical two-stage parking facility constructed by connecting the contact (b) (8b ₁ ) of the limit switch (8) and the locking device fault indication lamp (P) in series Device.