JPH07279517A - Door locking device - Google Patents

Abstract

PURPOSE:To insert a lock pin easily even if dimensional errors exist in vertical direction by providing an oblong hole in a support metal fixture and tightening it with a bolt, and also forming a hole into which the lock pin is inserted into the oblong hole. CONSTITUTION:A support metal fixture 1 into which a lock pin 7 attached to a storing box 9 is inserted is tightened with a bolt, and a hole at the bolted part is formed in an oblong hole 2 so as to adjust the support metal fixture 1 in longitudinal direction. Next a hole into which the lock pin 7 is inserted is formed in an oblong hole 3 so as to absorb the dimensional and mounting errors in vertical direction when a door 8 and the storing box 9 are welded. Thus the adjustment of a door locking device by cutting the support metal fixture 6 when it is installed is eliminated, and the work for it can be simplified.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock device for a storage box such as a ground transformer or a multi-circuit switch.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 3, a door of a storage box such as a ground transformer or a multi-circuit switch has a door of a storage box 9 when the device is destroyed due to an internal short circuit accident. Door lock device 10 so that 8 is opened and scattered objects do not come out of the device.
2 is attached, and an example of the structure of the door lock device 10 is shown in FIG. 2, where (a) is a plan view and (b) is a side view.
In FIG. 2, the blocks 4 and 5 on the side of the door 8 and the receiving metal 6 on the side of the storage box 9 each having a round hole 11 are welded, and the lock pin 7 slides into the round hole 11, It has a locking structure.

[0003]

However, in this conventional door lock device, since the blocks 4 and 5 and the receiving metal 6 are welded to the door 8 and the storage box 9, respectively, there is an error in welding and the storage. An error may occur when the door 8 is attached to the box 9, and the lock pin 7 may not fit into the round hole 11. Since the lock pin 7 was adjusted by cutting the round hole 11 of the receiving metal fitting 6, After the ground transformer or multi-circuit switch is installed on site, if the door 8 is deformed by an external impact, the blocks 4 and 5 and the bracket 6 are welded to the door 8 and the storage box 9, respectively. Therefore, it is difficult to replace the door 8 and the door lock device 10 locally. Therefore, the present invention simplifies the adjustment work by making it possible to absorb dimensional errors and mounting errors during welding.

[0004]

According to the present invention, the receiving metal fitting for inserting the lock pin to be attached to the storage box is bolted, and the bolt tightening hole is an oval hole so that the front and rear adjustments can be made. The hole to be inserted will be an elliptical hole, and the structure will be able to absorb vertical dimensional errors and mounting errors.

[0005]

According to the present invention, when mounting the door lock device, it is not necessary to trim and adjust the receiving metal fitting 6, and the work can be simplified.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of a door lock device according to the present invention.
(A) is a plan view, (b) is a side view, and (c) is a bracket 1.
2D is a detailed side view of the receiving fitting 1. FIG. The bracket 1 is fixed to the storage box 9 with bolts, and the hole of the bolt fastening portion is provided with an oval hole 2 so that the bracket 1 can be adjusted back and forth. Lock pin 7
An oval hole 3 is provided as the insertion hole of the above, so that the insertion can be easily performed even with a vertical dimensional error. Further, the blocks 4 and 5 on the door 8 side are attached by welding as in the conventional case.

[0007]

As described above, according to the present invention, the work for mounting the door lock device can be simplified, and thus the number of work steps can be significantly reduced.

[Brief description of drawings]

FIG. 1 shows an example of a door locking device of the present invention, (a) is a plan view, (b) is a side view, (c) is a detailed plan view of a receiving fitting 1, and (b) is a side surface of the receiving fitting 1. FIG.

FIG. 2 shows an example of a conventional door lock device, (a) is a plan view and (b) is a side view.

[Figure 3] Door lock device installation state diagram

[Explanation of symbols]

 1 Receiving metal fittings 2,3 Oval hole 4,5 Block 6 Receiving metal fitting 7 Lock pin 8 Door 9 Storage box 10 Door locking device 11 Round hole

Claims (1)

[Claims] 1. In a door lock device provided in a storage box such as a ground transformer or a multi-circuit switch, an oval hole is provided in a metal fitting into which the lock pin on the storage box side is inserted, and the storage box is bolted. The door lock device is characterized in that the hole for inserting the lock pin of the receiving fitting is an oval hole.