JPH0717207Y2 - Self-supporting distribution board - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a self-supporting switchboard.

[Conventional technology]

The distribution board is generally constructed by fixing an inner lid 62 for mounting an internal device 61 to a storage box 63 with a support fitting 64, as shown in FIG.

And when making the distribution board a self-supporting type, a storage box
In order to secure the strength of 63 and the anchor bolt fixing strength on the lower surface of the storage box 63, it is necessary to deepen the depth of the storage box 63. At that time, in consideration of operability of the internal device 61 (breaker etc.) and concealment of internal wiring, the internal device 61 and the inner lid are considered.
The opening of the storage box 63 needs to be positioned at the crocodile 62, but in the conventional case, as shown in FIG.
The base end side of 71 is fixed to the back plate 72 of the storage box 71 with bolts
The bolt 76 was fixed through 73.

[Problems to be solved by the device]

However, in such a prior art, when it is laid down on its side during transportation, the torque T is increased by its own weight P of the internal device 75 of the inner lid 74 as shown in the plan sectional view of FIG. 7 (a). Occurs at the base end of the inner device lifting metal fitting 71. And this torque T
Since the value of becomes large in proportion to the length of the internal device lifting metal fitting 71, the thin back plate 72 is easily deformed as shown in FIG. There was a problem.

An object of the present invention is to provide a self-sustaining distribution board which can prevent displacement of internal equipment.

[Means for Solving the Problems]

In the self-sustaining distribution board of the present invention, an opening is formed on the front surface of the storage box, and an inner container raising metal fitting for exposing the inner lid for mounting internal equipment to the opening is provided at a distance in the storage box. A plurality of the inner unit raising metal fittings are attached to the back plate of the storage box at the base end of each of the inner unit raising metal fittings, and the leading ends of the inner unit raising metal fittings are attached to the inner lid to raise the adjacent inner unit raising arms. It is characterized in that a reinforcing material is installed between the base ends of the metal fittings.

[Action]

According to the configuration of the present invention, a plurality of internal unit raising metal fittings for exposing the inner lid for mounting the internal equipment to the opening are arranged at intervals in the storage box, and Since the base end is attached to the back plate of the storage box on the crocodile, the tip of the inner unit raising metal fitting is attached to the inner lid, and the reinforcing member is installed between the base ends of the adjacent inner unit raising metal fittings. The movement of the adjacent inner unit lifting metal fittings can also be restricted by the reinforcing member, and therefore, the resistance of the proximal end of the inner unit lifting metal fitting to the torque generated in the crocodile is strengthened.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS. The self-sustaining distribution board includes a storage box 1 having an opening 2, an inner lid 4 for mounting an internal device 3, and an inner unit lifting metal fitting 5 for supporting the inner lid 4 by facing the opening 2. ing. A total of four inner container lifting metal fittings 5 are arranged in the storage box 1 in the vertical and horizontal directions. The base end of the inner unit raising metal fitting 5 is attached to the back plate of the storage box 1, and the front end of the inner unit raising metal fitting 5 is attached to the inner lid 4. A reinforcing material 6 is installed between the ends.

The inner unit lifting bracket 5 is formed in a U shape, and the bent portions of the front end and the rear end of the inner unit lifting bracket 5 are the mounting portions 6 and 7.
Bolt insertion holes 8 and 9 are formed in these mounting portions 6 and 7.

Support fittings 10 and 11 are attached to the periphery of the inner lid 4. 14 is a hinge.

Then, the inner unit raising metal fitting 5 is fixed to the back plate 12 of the storage box 1 by the bolts 13 through the bolt insertion holes 9 of the rear end of the inner unit raising metal fitting 5, and the inner lid 4 is supported. Bracket 10,1
A bolt 13 is fixed to the inner unit lifting metal fitting 5 through the bolt insertion hole 8 of the front end attachment portion 6. A door 15 is connected to the storage box 1 by a hinge 16.

Reference numeral 17 denotes a bolt fixing metal fitting, which is made of grooved steel. The bolt fixing brackets 17 are wired in a pair on the left and right,
The back plate 12 of the storage box 1 is attached by welding in the vertical direction. The inner-body raising metal fittings 5 are fixed to the upper and lower ends of each bolt fixing metal fitting 17 by bolts 13.

Therefore, when placed sideways during transportation, most of the trick T generated at the base end of the inner unit lifting metal fitting 5 due to the weight P of the internal equipment 3 of the inner lid 4 is reinforced as shown in FIG. Material 6
Therefore, the back plate 12 of the storage box 1 can be prevented from being deformed. On the other hand, when the distribution board is self-supporting, the bolts 17 can be used to resist the tricks caused by the internal weight of the internal equipment 3 that causes the base end of the internal device lifting metal fitting 5 to crochet.

FIG. 3 shows how the bolts 13 are attached to the bolt fixing fittings 17. As shown in the front cross-sectional view of FIG. 3A, the bolt fixing holes 17 of the bolt fixing fittings 17 have a wide portion 19 to a narrow portion. The bolt head 21 is inserted into the bolt 20, and the bolt 13 is supported.

Bolt through holes 22 are formed at both ends of the reinforcing member 6. Then, the bolts 13 are inserted into the bolt insertion holes 9 of the inner part lifting metal fitting 5 and the bolt through holes 22 of the reinforcing member 6 so that the bolts 13
The inner unit raising metal fitting 5 is fixed to the bolt fixing metal fitting 17 with the nut 23, and the reinforcing material 6 is sandwiched between the bolt fixing metal fitting 17 and the mounting portion 7 of the inner unit raising metal fitting 5. Therefore, a separate bolt fixing operation for attaching the reinforcing member 6 is not necessary, and the assembling work is not complicated.

Further, as shown in FIG. 2, the end of the reinforcing member 6 is located at the bent corner portion 24 of the inner device raising metal fitting 5 to enhance the resistance to the torque T. That is, the bolt fixing metal fitting 17 has a function of stopping the rotation of the bolt 13, so that the bolt fixing metal fitting 17
Is limited, and when the reinforcing member 6 is not provided, when torque T is generated, due to the lever principle, the point A serves as a fulcrum and an excessive force is applied to the welded portion 25 of the bolt fixing bracket 17,
The bolt fixing bracket 17 may come off the back plate 12. However, according to this publication, the presence of the edge of the reinforcing member 6 makes it possible to considerably reduce the force applied to the welded portion 25 with the point B serving as a fulcrum.

[Effect of device]

According to the self-sustaining distribution board of the present invention, the movement of the adjacent inner unit raising metal fittings can be restricted also by the reinforcing member, and the resistance of the base end of the inner equipment raising metal fitting to the torque generated in the crocodile is strengthened. As a result, it is possible to prevent the positional deviation of the internal device.

[Brief description of drawings]

FIG. 1 is a plan sectional view of a self-supporting distribution board according to an embodiment of the present invention, FIG. 2 is a sectional plan view showing a mounting state of an inner container raising metal fitting and a reinforcing member, and FIGS. ) Is a front sectional view and a plan sectional view showing the mounting state of the fixing bolt,
FIG. 1 is a perspective view of a self-supporting distribution board of one embodiment, FIG. 5 is a perspective view of the self-supporting distribution board with a door opened, and FIG. 6 is a plan sectional view of a wall-mounted distribution board. 7 (a) and 7 (b) are plan sectional views showing the operation of the conventional inner container lifting metal fitting. 1 ... storage box, 2 ... opening, 3 ... internal equipment,
4 ... Inner lid, 5 ... Inner unit lifting metal fitting, 6 ... Reinforcing material

Claims (1)

[Scope of utility model registration request] 1. A plurality of internal unit lifting metal fittings, each having an opening formed in the front surface of a storage box, for exposing an inner lid for mounting internal equipment to the opening, are provided in the storage box at intervals. Between the base ends of the adjacent inner unit lifting metal fittings, the base ends of the respective inner unit lifting metal fittings are attached to the back plate of the storage box, and the tips of the inner unit lifting metal fittings are attached to the inner lid. A self-sustaining distribution board characterized by having a reinforcing material installed on it.