JPH0255505A - Structure of case for electric equipment - Google Patents

Abstract

PURPOSE:To remove a case without lifting it upwards or hanging it up by fitting the case disconnectably to a base and by fitting a flank of the case disconnectably to a housing main body. CONSTITUTION:A housing main body 1 has an opening at the bottom and a door 4 and a panel 5 can be disconnected. The door 4 is connected to the housing main body 1 with a hinge (not shown) and is fixed to a screw shell section 13 of the housing main body 1 by inserting a machine screw 12 into a screw hole 6. The panel 5 is fixed to a screw shell section 16 of the housing main body 1 by inserting a machine screw 15 into a screw hole 7. It has a draining groove 17 on the top. A base 9 has a fixing section 18 to which a screw hole 20 to fix the housing main body 1 is attached. It is fixed to a screw hole 19 of the housing main body 1. The case can thereby be exchanged by simply sliding the housing main body in the specified direction without lifting the case upwards.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an outer case structure for electrical equipment, and particularly to an outer case structure for electrical equipment such as a switch.

[Conventional technology]

Electrical equipment installed on the ground on a road, such as a switch, is often protected by an outer box called a cabinet. To open or close this switch, open the door provided on the outer box and attach the operating handle to the mechanism. When the opening/closing operation is finished, remove the operating handle and close the door. Finish your work. Furthermore, when carrying out work on the cable connected to the switch (standing up from a manhole or handhole), the outer box is removed to expose the switch and the cable connection.

[Problem to be solved by the invention]

However, according to the conventional outer box structure of the switch, when removing the outer box, the outer box must be lifted upward or lifted, which requires a large external force and poses problems in terms of workability, safety, etc. be. This is a problem that occurs not only during cable construction, but also when replacing the outer box.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an outer box structure for electrical equipment that does not require lifting or hoisting the outer box upward when removing the outer box.

Another object of the present invention is to provide an outer casing structure for electrical equipment that allows the outer casing to be removed with a small external force.

Another object of the present invention is to provide an outer box structure for electrical equipment that is highly workable and safe.

Another object of the present invention is to provide an outer casing structure for electrical equipment that not only solves the conventional problems according to the above-mentioned objects, but also provides effects such as watertightness.

[Means to solve the problem]

The present invention has been made in view of the above, and in order to achieve the above object, the main body forming the outer box can be attached to and detached from the base, and one side of the main body can be attached to and detached from the main body. An object of the present invention is to provide an outer box structure for an electrical device.

That is, the outer box structure of the electrical device of the present invention has the following configuration.

The base is fixed to an opening such as a manhole or handhole with an anchor bolt or the like. An internal frame that supports electrical equipment such as a switch is fixed to the base with bolts or the like. A main body is arranged so as to surround electrical equipment such as a switch supported by the internal frame, and this main body is also fixed to the base. One side of the main body can be attached to and removed from the main body. One detachable side includes, for example, a door located from the mechanism part of the switch to the movable electrode part, and a panel located at the connection part that connects the switch and the cable. Preferably, the door and panel are fixed to the main body with screws, bolts, etc., and the door can be opened and closed with a hinge relative to the main body.

[Effect]

When opening/closing the switch manually, remove the fixing means such as screws from the door. In this state, the door can be opened and closed by the hinge. When the door is opened, the mechanical part of the switch is exposed, so an operating handle can be attached to the handle attachment part. The operating handle opens and closes the switch, and when the opening/closing operation is completed, the operating handle is removed. After this, close the door and fix it to the main body with screws, etc. During opening and closing operations, the door may be removed from the main body by releasing the hinge.

When performing cable work, remove the fixing means such as panel screws and remove the panel from the main body.

Once the cable work is complete, secure the panel to the main body again. When doing cable work, you can remove the door mentioned above along with the panel.

When replacing the outer box, remove the door and panel using the method described above and unfasten the main body and base.

After this, the outer box can be removed by sliding the main body in the direction opposite to the one side having the door and panel. Installation of a new outer box can be performed by reversing the removal procedure.

〔Example〕

Hereinafter, the outer box structure of the electrical equipment of the present invention will be explained in detail.

FIG. 1 shows an embodiment of the present invention, in which a multi-circuit switch is housed in a main body 1 forming an outer box.

The multi-circuit switch may be replaced with a π-type connection switch,
It may also be replaced with a distribution tower or the like. The multi-circuit switch has a plurality of movable electrodes 2, and a mechanism section (not shown) for moving the movable electrodes 2 up and down is located above the movable electrodes 2. A cable connection part 3 is provided at the bottom of the multi-circuit switch, and connects the multi-circuit switch to an underground power distribution cable. The main body 1 has a door 4 and a panel 5 on the front side, and is fixed to the main body 1 with screws 1215. The multi-circuit switch is supported by an inner frame 8, which includes an inner frame 1. B is fixed to the base 9. The base 9 is fixed to an opening (not shown) of a man ball, hand hole, etc. with an anchor bolt or the like. As is clear from Figure 1, door 4
is a multi-circuit switch (movable electrode 2 and mechanical part not shown)
The panel 5 is located at the cable connection section 3.

FIG. 2(a) shows the relationship between the main body 1 and the base 9.

The main body 1 is open at the bottom, and has a structure in which the door 4 and panel 5 described above can be attached and detached from the front. The attachment/detachment structure of the door 4 and panel 5 will be described in detail later, but the door 4 is engaged with the main body 1 by a hinge (not shown), and the screw 12 of the main body 1 is inserted into the screw hole 6. The panel 5 is fixed to the part 13, and the screw 15 of the main body 1 is fixed to the panel 5 by passing the screw 15 through the screw hole 7. It cannot be operated with a screwdriver, but can be operated with a dedicated screwdriver that matches the dedicated engagement groove.

In addition, in places where there is no mischief, a normal hinge is sufficient. Furthermore, if necessary, a backing 24 may be applied to all contact surfaces between the main body 1 and the base 9.

FIG. 4 (al shows an example of the hinge between the main body 1 and the door 4. That is, the end 1a of the main body 1 is formed in a hook shape, and the upper end 4a of the door 4 is also formed in a hook shape. The hook-shaped portions la and 4a are engaged with each other, and a backing 25 is applied to the hook-shaped portion 1a in advance.

Fig. 4 (bl is a cross section of the door 4 fixed to the screw receiver & J section 13;
6 is compressed. 12 is a screw of the same type as the bolt 22 described above, and 28 is a blind screw of the same type as the blind screw 23 described above. As in the previous example, these are fixed to the displacement 16 by thumbscrews. The panel 5 has a drainage groove 17 at the top, which will be explained in detail later. On the other hand, the base 9 has a screw hole 2o for fixing the main body 1 (the fixed part shown in d).
8, and is fixed to the threaded hole 19 of the main body 1 by a method described later.

Figure 2 (bl shows a modified example of the main body 1, door 4, and panel 5; the main body 1, door 4, and panel 5 are integrated with banking in between, as shown by 4A and 5A. The receiver portions 13 and 16 are provided with a locking portion having a structure to be described later in FIG. 4 (C1, (d)).

FIG. 3 shows a method of fixing the main body 1 and the base 9. base 9
A fixing part 18 is welded to C, and a banking 21 is bonded to the fixing part 18 in advance. The main body 1 is placed on the base 9, the bolts 22 are passed through the tapped holes 19, the backing 21 is compressed, and the main body 1 is fixed to the fixing part 18. The bolt 22 has a normal positive or negative screw head, and after being pushed in, a tamper-proof blind screw 23 is screwed into the screw hole 19. It's okay to be blind. When the door 4 is fixed to the screw receiver 13, the backing 25 of the hinge is compressed in the vertical direction.

FIG. 4 (C1, (dl) shows a locking structure applied to portions 13 and 16. Door 4 has an opening/closing lid 42 that rotates around 45, and bolts 43 hold backing 26. "Tighten it" The screw holder is fixed to part 13. Bolt 43
are the horizontal hole 44A into which the pillar key 41 is inserted and the vertical hole /1
It has 4B. When performing key operations, the opening/closing lid 42 is placed in the position shown by the dashed line and the pillar key 41 is inserted. At this time, the tip 41A is horizontal. When the tip 41A hits the wall of the vertical hole 44B, it bends in the vertical direction.

This allows the bolt 43 to be tightened and removed. Therefore, the work cannot be performed without the pillar key 41.

FIG. 5 (at, (bl) shows the engaging part of the door 4 and the panel 5, and the thin cross-sectional parts of each are in surface contact.Panel 5
has the above-mentioned drainage groove 17 on the top, and a backing 29 is pasted on the thin section. The depth of this drainage groove 17 increases from the center to both sides.

The present invention will be explained in detail below.

A frame 8 fixed to a base 9 supports the multi-circuit switch. The main body 1 (excluding the door 4 and panel 5) is fixed to the base 9.

At this time, the port 22 is fixed to the fixing part 18 with the main body 1 compressing the backing 21. Blind screws 23 are provided as necessary. Next, the panel 5 is fixed to the flap portion 16 of the main body 1 with screws 15. The structure of the screw 15 and the screw catch part 16 is the same as the structure shown in FIG. Engage the hook-shaped portion 4a of the door 4. This can be easily done by sliding the door 4 perpendicular to the plane of the paper in FIG. do.

By the above operations, the outer box can be assembled on the outside of the multi-circuit switch.

Since it can be attached to and removed from the 4° space and the side of the main body can be attached to and removed from the main body, there is no need to lift the outer box upward when replacing it.
The outer box can be replaced by simply sliding the main body in a predetermined direction. Therefore, the work can be performed with a small external force, and the outer box can be replaced safely. Also,
Since each fixed part is provided with a backing, a predetermined watertight effect can be obtained.

The same goes for the gap between the door and the panel, and since the groove is sloped, water that collects in the groove at the top of the panel can be easily drained to the outside of the outer box.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view showing one embodiment of the present invention. Second
Figures (Al is an explanatory diagram showing the outer box disassembled. Figure 2 (BL is an explanatory diagram showing another outer box. Figure 3 is a sectional view showing the fixed part of the main body and base forming the outer box. Figure 4 (ag, (b)
is a cross-sectional view showing the outer box door and the fixing part of the main body. Figure 4tc)
, fd) is a sectional view showing another fixing part. Figure 5 (al,
(bl shows this state of the outer box in FIG. 6 (al). Here, 30 is electrical equipment such as a multi-circuit switch.
Step 9 is omitted. Next, as shown in Figure 6 (bl),
If you remove the door 4 and panel 5 by reversing the steps described above and remove the main body 1 from the base 9 (not shown),
The main body 1 can be easily slid to the opposite side of the door 4 and panel 5. In this way, the main body 1 can be replaced easily and safely. Needless to explain, the operation handle is attached to the mechanism section by opening and closing the door 4, and the cable connection section 3 is attached by removing the panel 5.
construction can be done easily. In addition, as shown in FIG. 7, if the side surface 31 of the main body 1 has a removable structure, the main body 1 can be slid in the direction shown in (b). In this way, the sliding direction is not particularly limited. [Effects of the Invention] As explained above, according to the outer box structure of the electrical equipment of the present invention, the main body forming the outer box is attached. Figure 7 (al, (
bl is an explanatory diagram showing how to replace the outer box. Explanation of symbols 1------Outer box 3---------Cable connection part 4---Part 6, 7.19.20 8------ --- Frame 12, 15 ------ Screws 13, 16 ---
--------- Slip support part 17'----- Drain groove 2L 24.25.26.29- 22--------- Bolt 5---- - Screw hole movable electrode panel base 18 - - Fixed part backing 23, 28 - Partial screw Patent applicant Saneisha Seisakusho Co., Ltd. Representative Patent attorney Hei 1 ) Tadao f life
Descendant beze hemi 1 ward uncoupling 1 ・埒 Δ 1 murmuring Shang°kuhedenimukuki ′ j j ′ father-in-law key ku moku -L-extending 蚤 similitude -mi directional bile fable mei → old proverb ・悴 monkey 嘗 °ku taste to be rough \ 1 zu λ 1 play 錎酩translation-I+-play11's-two doo 橿a Th It's し Q Article obi suit father-in-law
°ku shi; ward honor: : ku m's ■←-to 0 sun sun sun-(he) sun sun sun sun 嘗 °ku father not included to ゝ■

Claims (1)

[Claims] An outer box structure for storing and protecting electrical equipment such as a switch, comprising an outer box having a fixing part that is detachable from a support member such as a base or frame that supports the electrical equipment. , the outer box is fixed to the main body through a main body that covers three sides and an upper side of the electrical equipment, and a fixing part that is located on the remaining one side of the electrical equipment and is detachable from the main body. The device has a removable side surface, and the removable side surface is comprised of an openable/closable door located at the operating section of the electrical device, and a removable panel located at the cable connection section that connects the electrical device to the cable. Characteristic outer box structure of electrical equipment.