JP2519584Y2 - Distribution panel door locking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a door locking device for a distribution panel for retracting or erection.

[Conventional technology]

Generally, in distribution boards for retracting or erection, electrical specialists mainly open and close the door to maintain and inspect internal equipment, and use an operation handle to prevent an amateur from easily opening and closing the door. The door is locked so that it can be inserted and removed.

Specifically, a locking main body attached to the door body, a rotating tool provided with a locking piece penetrating through the locking main body and rotatably mounted inside to engage and disengage with the box body by a rotating operation, An operation handle that can be inserted into and removed from the rotating tool on the outside of the door, and a release piece that intervenes between the rotating tool and the locking body to prevent rotation, and releases the rotation blocking of the rotating tool by inserting the operating handle into the rotating tool. The door locking device is constituted by the lock body provided with the lock member, and the rotation of the rotary tool is blocked by the removal of the operation handle to lock the door.

In addition, the door locking device has a limited number of holes formed in the rotating tool so that the door can be opened and closed only with the dedicated operation handle.
Doors cannot be opened and closed with different types of operating handles.

Two types of operation handles are mainly used in the market. One is a first operation handle that can be inserted into a front hole formed on the front side of the outside of the door of the rotating tool, and the other is the rotating tool. There is a second operation handle that can be inserted into a side surface hole formed on the outer side surface of the door.

Since there are at least two types of dedicated operation handles in this way, workers who go out to perform electrical maintenance and inspection must prepare and go out with at least two types of operation handles, and they do not have them on site. In some cases, work could not be done.

Therefore, the rotating tool of the door locking device is provided with a front hole and a side hole so that both the first and second operation handles can be operated, and if the first or second operation handle is held together, the opening / closing operation can be performed. It was suggested to be able to do it.

[Problems to be solved by the device]

Therefore, in the above-mentioned proposed configuration, when the door locking device is sealed, it is necessary to disable all operations of the first and second operation handles. If the side hole is closed separately, the sealing work may be troublesome.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a door locking device for a distribution board that enables easy sealing work.

[Means for solving the problem]

In order to solve such a problem, the door locking device of the distribution board,
On the upper surface of the rotating tool, a closing plate having a through hole for inserting a sealing wire is installed side by side at a position close to the side hole of the rotating tool while being rotatably supported, and a door for the side hole of the rotating tool. A hooking piece having a through hole through which the sealing wire is inserted is provided at the side position.

[Action]

In the door locking device of the distribution board of the present invention, when the sealing wire is inserted through the through hole of the closing plate and the through hole of the hooking piece,
Since the rotation of the closing plate is blocked, the upper hole of the rotating tool is not opened, and the sealing wire crosses the side hole of the rotating tool, so that the operation handle cannot be inserted.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 11.

The door body 2 is positioned in the opening of the box body 1, the right end portion of the door body 2 is hinged to the box body 1 by the hinge 2a, and the door locking device 3 is attached to the left end portion of the door body 2, Is mounted on the box 1 so as to be opened and closed by operating the door locking device 3.

 The specific configuration of the door locking device 3 will be described below.

First, the locking main body 4 attached to the mounting hole 2b formed in the door body 2 has the flange portion 4a formed on the outside of the door and the screw portion 4b formed on the inside of the door.
A stepped portion with a large diameter on the collar 4a side and a small diameter on the screw 4b side inside
A through hole 4d having 4c is provided.

Further, the step portion 4c is provided with a first locking hole 4e and a second locking hole 4f, and a locking piece is provided at the tip of the screw portion 4b.
It has 4g.

In this locking body 4, after inserting the screw portion 4b into the packing 4h, the screw portion 4b is inserted into the mounting hole 2b of the door body 2 from the outside of the door so that the collar portion 4a is located on the front surface of the door 2 and the screw portion 4b is inserted. After the spring 4i has been inserted through, the nut 4j is screwed and fixed to the door body 2.

Further, the packing 4k is mounted in the recess formed on the peripheral side of the collar portion 4a of the locking body 4.

Moreover, the locking body 4 has a through hole 4d in the locking body 4.
The rotating tool 5 which is penetrated is attached.

The rotating tool 5 surrounds the collar portion 4a of the locking body 4 and surrounds the collar portion 4a.
Operation head on the outside of the door waterproofed by packing 4k of 4a
5a and a shaft portion 5b penetrating the through hole 4d of the locking body 4.

A groove 5c is formed in the shaft portion 5b, and after the through hole 4d of the locking body 4 is inserted, a retaining ring 5d is attached to prevent the rotating tool 5 from coming off.

Further, a square acting portion 5e is provided at the tip of the shaft portion 5b, and a locking piece 4g of the locking body 4 for restricting the rotation range of the rotating tool 5 and a locking operation to engage and disengage the box body 1 by a rotating operation. Hooking piece
5g, and a screw hole 5h is formed in the tip surface of the shaft portion 5b, the mounting screw 5k is screwed through the washer 5i and the washer 5j, and the restricting piece 5f and the hooking piece 5g are connected to the shaft portion. It is fixed to 5b.

In addition, depending on the relationship between the restricting piece 5f and the locking piece 4g, the rotating tool 5
The rotation range of is about 90 degrees.

In addition, the operation head 5a of the rotating tool 5 has a non-circular front hole 5m formed on the front surface and side holes 5n formed on the side surfaces so that the front holes 5m and the side holes 5n intersect each other. A space X is provided.

At the position of this space X, the first locking hole 5p in the direction of the shaft 5b is formed.
The locking body 4 is provided with the hooking piece 5g engaged with the box 1.
It is adapted to match the first locking hole 4e.

Furthermore, like the first locking hole 5p in this space X,
Provide a second locking hole 5q in the side hole 5n in the direction of the shaft 5b,
The hooking piece 5g is adapted to fit into the second locking hole 4f of the locking body 4 in a state of being engaged with the box 1.

The first locking member 5 is inserted into the first locking hole 5p of the rotating tool 5.
The releasing piece 6b is housed in the space X of the rotating tool 5 so that the releasing piece 6b can project, and the second locking body 6c is housed in the first locking hole 4e of the locking body 4 via the spring 6d. In the state where the hooking piece 5g is engaged with the box body 1, as shown in FIG. 7, the second lock body 6c presses the first lock body 6a by the biasing force of the spring 6d, and the release piece 6b is moved to the space X. The second lock body 6c enters into the first locking hole 5p of the rotating tool 5 and prevents the rotating tool 5 from rotating.

In addition, the third lock body 6c is housed in the side hole 5n of the rotating tool 5 in the second locking hole 5g of the rotating tool 5 so that the release piece 6f can be projected, and the second locking hole of the locking body 4 is used for the second locking. 4th in hole 4f
When the lock body 6g is stored via the spring 6h and the hooking piece 5g of the rotating tool 5 is engaged with the box body 1, as shown in FIG.
The fourth lock body 6g presses the third lock body 6e by the bias of 6h to cause the release piece 6f to project into the side hole 5n, and the third and fourth lock bodies 6e and 6g rotate relative to each other. The rotating tool 5 is in a rotatable state without protruding into the second locking hole 5q of the tool 5 and the second locking hole 4f of the locking body 4.

Further, an insertion piece 7a having a shape similar to the front hole 5m formed at the tip of the first operation handle 7 having a substantially T shape is inserted into the front hole 5m of the rotating tool 5.

When the insertion piece 7a of the first operation handle 7 is inserted into the front hole 5m of the rotating tool 5, as shown in FIG.
The release piece 6b of 6a shifts against the bias of the spring 6d, and with this shift, the second lock body 6c disengages from the first locking hole 5p of the rotating tool 5 to prevent rotation of the rotating tool 5. Since it is released, the rotating tool 5 can be rotated by operating the first operation handle 7 to disengage or engage the hooking piece 5g from the box 1.

Further, the side hole 5n of the rotating tool 5 has a second Z-shaped second shape.
U-shaped insertion piece formed at the tip of the operating handle 8
8a is inserted.

When the insertion piece 8a of the second operation handle 8 is inserted into the side surface hole 5n of the rotating tool 5, as shown in FIG.
The release piece 6b of 6a shifts against the bias of the spring 6d, and with this shift, the second lock body 6c releases the rotation prevention of the rotating tool 5, and by the operation of the second operation handle 8. By rotating the rotating tool 5, it is possible to disengage or engage the hooking piece 5g from the box 1.

Further, the third lock body 6e and the fourth lock body 6g press the release piece 6f of the third lock body 6e while the second operation handle 8 is being inserted, and the third lock body 6e and the fourth lock body 6g press the third lock body 6e. The lock body 6e enters the second lock hole 4f of the locking body 4 to prevent the rotation of the rotating tool 5, and when the second operation handle 8 is completely inserted, the release piece of the third lock body 6e is released. 6f fits into the side hole 8b of the second operation handle 8, and the release piece 6f of the third lock body 6e
Is released to stop the third lock body 6e from entering the second lock hole 4f to release the rotation prevention of the rotating tool 5.

The action of the third lock body 6e and the fourth lock body 6g prevents the operation of the second operation handle 8 in the halfway inserted state and prevents the second operation handle 8 from falling off during the rotation operation. Can be reduced.

Furthermore, the front side of the operating head 5a of the rotating tool 5 has a side hole 5n.
A screw hole 5r is formed at the position opposite to the screw hole 5r.
A closing screw 5s is screwed onto the locking head 5t, and the closing plate 5t is rotatably attached to the operation head 5a with a coil spring 5u interposed. A cut-and-raised piece 5v is formed on the side surface hole 5n side of the closing plate 5t to form a through hole 5w.
Is provided.

Further, the operation head 5a of the rotating tool 5 has a door body 2 with a side hole 5n.
A hooking piece 5y having a through hole 5x on its side is formed.

In the through hole 5x of the hooking piece 5y and the through hole 5w of the closing plate 5t,
By inserting the sealing wire 9 and binding the both ends of the sealing wire 9, the rotation of the closing plate 5t is prevented and the insertion of the first operation handle 7 into the front hole 5m of the rotating body 5 is prohibited. Since the line 9 crosses the side hole 5n of the operation head 5a at right angles, the insertion of the second operation handle 8 into the side hole 5n of the rotating body 5 is prohibited and sealing is performed.

Therefore, by prohibiting the insertion of the first and second operation handles 7 and 8 by binding the single sealing wire 9 through the through hole 5x of the hooking piece 5y and the through hole 5w of the closing plate 5t. It is possible to improve workability.

[Effect of device]

As described above, the door locking device for the distribution board of the present invention has a through hole on the upper surface of the rotating tool for inserting the sealing wire in a position close to the side hole of the rotating tool in a closed state in which the rotating tool is pivotally supported. Since the formed closing plates are arranged side by side, and the hooking piece having the through hole for inserting the sealing wire is provided at the door side position of the side hole of the rotating tool, the sealing wire is provided with the through hole of the closing plate and the hooking piece. When it is inserted into the through hole of the rotating tool, the obstruction plate is prevented from rotating, the upper hole of the rotating tool does not open, and the sealing line crosses the side hole of the rotating tool, so that neither operation handle can be inserted. Therefore, there is an effect that the sealing work can be easily performed.

[Brief description of drawings]

1 is a sectional perspective view showing an embodiment of the present invention, FIG. 2 is a front view of a distribution board using the door locking device of FIG. 1, FIG. 3 is a side view of FIG. 4 is a top view of a cross section of a main part of FIG. 2, FIG. 5 is an exploded perspective view of the door locking device of FIG. 1, and FIG. 6 is a side sectional view of the door locking device of FIG. 7 is a sectional view taken along the line AA in FIG. 2, FIG. 8 is a side view in which the second operation handle is inserted into the door locking device of FIG. 1, and FIG. 9 is in the state of FIG. Fig. 10 is a side view of the door locking device of Fig. 1 with the first operating handle inserted, and Fig. 11 is a cross sectional view of Fig. 10 taken along AA. . 1 ... Box, 2 ... Door, 3 ... Door locking device, 4 ... Locking body, 4d ... Through hole, 5 ... Rotating tool, 5a ... Operation head, 5b ... Shaft, 5g …… Hooking piece, 5m …… Front hole, 5n ……
Side hole, 5s …… Mounting screw, 5t …… Occlusion plate, 5v …… Cut-and-raise piece, 5w …… Through hole, 5x …… Through hole, 5y …… Hooking piece, 6a…
... 1st lock body, 6b ... release piece, 6c ... 2nd lock body, 6d ... spring, 7 ... 1st operation handle, 8 ... 2nd operation handle, 9 ... sealing line.

Claims (1)

(57) [Scope of utility model registration request] 1. A locking body attached to a door body that is openably and closably mounted on the box body, and a door inside that is rotatably mounted through the locking body and engaged with the box body by a rotation operation. A rotating tool provided with a hooking piece to be detached and having an upper surface hole and a side surface hole formed on the front and side surfaces outside the door, a first operation handle that can be inserted into and removed from the upper surface hole of the rotating tool, and a side surface of the rotating tool. A second operation handle that can be inserted into and removed from the hole, and is interposed between the rotating tool and the locking body so as to prevent rotation of the rotating tool. In a door locking device for a distribution board calibrated with a lock body provided with a release piece for releasing the rotation inhibition of the rotating tool by inserting at least one of the rotating tool, a rotatable pivot is provided on the upper surface of the rotating tool. Insert the sealing wire in a position close to the side hole of the rotating tool while it is supported and blocked. Distributor characterized in that a closing plate having a through hole for passing through is arranged in parallel, and a hooking piece having a through hole for passing through the sealing wire is provided at a position of the side hole of the rotating tool on the door side. Panel door locking device.