JPS6236934Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention mainly relates to an improvement of a locking device that is attached to the door of an electrical equipment storage box such as a switchboard or distribution panel.

Conventional locking devices installed on the doors of switchboards, distribution boards, etc. are only for locking the doors, so when it is necessary to seal the door, a third locking device is used.
As shown in the figure, separately from the locking device A, the door A and the box B are tightened and fixed with two setscrews 27 and 29, and the sealing member insertion hole 2 provided in the heads of the setscrews 27 and 29 is used.
It is necessary to insert a sealing member C such as a wire into the holes 6 and 28 and tie it in place. Therefore, due to dimensional errors that occur when bending the box body A and door A or when installing the hinges, Not only is it difficult to match the screw holes provided in the box a and the door a, but also it takes a lot of work to tighten the setscrews 27 and 29, and it takes a lot of work to seal and open the box. Another problem is that such sealing may not be possible depending on the shape and structure of the door.

The present invention relates to a locking device with a sealing function completed with the purpose of solving the above-mentioned problems, and as shown in the illustrated embodiment, the lock body 1
A locking device in which a front plate part 3 with a key insertion hole 2 provided at the front end of the locking device is rotatably provided with a cover plate 4 that covers the front surface of the front plate part 3 and closes the key insertion hole 2, A hole 5 for inserting a set screw is provided on the periphery of the cover plate 4, and a set screw 7 capable of preventing rotation of the cover plate 4 is screwed into the hole 5. This is characterized in that a sealing member attachment part 8 is provided at the part. In addition, in the figure, 6 is a small hole for inserting a sealing member provided in the cover plate 4 in close proximity to the hole 5 when the sealing member attachment part 8 is a small hole through which a wire as a sealing member can be inserted, and 10 is a small hole for inserting the sealing member. Pivot pins 11 are provided between the front plate part 3 and each peripheral part of the cover plate 4 attached thereto in order to rotatably provide the cover plate 4 on the front plate part 3.
is a lock piece, and a set screw 7 provided on the peripheral edge of the cover plate 4 to prevent rotation of the cover plate 4 is a first lock piece.
In the first embodiment shown in the figure, a hole 5 is provided in the projecting piece 12 provided with the small hole 6 provided on the peripheral portion of the cover plate 4.
The cover plate 4 is screwed only into the cover plate 4, and the front part contacts the circumferential edge of the circular front plate part 3, thereby preventing the cover plate 4 from rotating.As shown in the second embodiment shown in FIG. It may be screwed into a screw hole 13 provided in the front plate portion 3 through a hole 5 provided on the peripheral edge of the cover plate 4. Furthermore, in all of the above embodiments, a wire is used as the sealing member. Therefore, a small hole is used as the sealing member attachment part 8, but when a sealing cap is used as the sealing member, it may be a head for fitting the sealing cap.

With this structure, the lock body 1 is attached to the door A of the box body B for storing electrical equipment such as a switchboard or distribution board so that the front plate part 3 is in front of the door A, and the lock body 1 is always attached with a set screw. 7 is moved backward, and by rotating the cover plate 4 that covers the front surface of the front plate part 3, the key insertion hole 2 is unblocked by the cover plate 4, and the key insertion hole 2 is opened.
A key handle is fitted to the door A, and the key handle is rotated to lock and unlock the door A. However, when sealing the door A after locking the door A, the cover must first be closed. After the plate 4 is rotated to cover the front surface of the front plate part 3, a set screw 7 is screwed into a set screw insertion hole 5 provided on the periphery of the cover plate 4.
to prevent the rotation of the cover plate 4 and insert the key into the key insertion hole 2.
is held in a closed state by the cover plate 4, and then a sealing member C is attached to the sealing member attaching portion 8 provided on the head of the set screw 7 to seal it. That is, in the illustrated embodiment, since the small hole serving as the sealing member attachment portion 8 is located near the small hole 6 for inserting the sealing member provided on the peripheral portion of the cover plate 4, All you have to do is insert a sealing member such as a wire into the two small holes, and if you use a sealing cap as the sealing member, insert the set screw 7.
By fitting the sealing cap into the grooved head that serves as the sealing member attachment part provided at the end of the cap, the seal can be sealed accurately and easily, and the sealing and unsealing operations do not require any effort. . Moreover, since the sealing part is incorporated into the locking device, there is no effect of dimensional errors that occur during the manufacturing process of the box body and lid.
It has a simple structure, has a small number of parts, and does not need to be relocated, so it has the advantage of being able to be provided at a low price.

Therefore, the present invention has great practical value as an inexpensive locking device that can not only lock the door but also seal the door accurately and easily.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view showing a first embodiment of the present invention, Fig. 2 is a partially cutaway perspective view showing a second embodiment of the present invention, and Fig. 3 is a conventional locking device of this type. 1 is a partially cutaway perspective view showing an example of a door sealing device using a door sealing device. 1: Lock body, 2: Key insertion hole, 3: Front plate, 4:
Lid plate, 5: Hole for inserting set screw, 7: Set screw, 8:
Sealing member attachment part.

Claims (1)

[Scope of utility model registration request] A front plate part 3 with a key insertion hole 2 provided at the front end of the lock body 1 is provided with a key insertion hole 2 that covers the front surface of the front plate part 3.
In a locking device in which a cover plate 4 is rotatably provided to close the cover plate 4, a hole 5 for inserting a set screw is provided in the peripheral portion of the cover plate 4 to prevent rotation of the cover plate 4. A locking device characterized in that a set screw 7 that can be screwed in is inserted therein, and a sealing member attachment part 8 is provided on the head of the set screw 7.