JP3012532B2 - Receiving frame for ground equipment and adapter for cable wiring in this receiving frame - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to an underground common ditch.
Contact the receiving frame and the receiving frame open <br/>閉器tower and transformers ground equipment tower or the like arranged power lines and communication lines such as cables are connected
To an adapter for cable wiring .

[0002]

2. Description of the Related Art In recent years, in an urban area or the like, a common trench for burying cables such as a power line and a communication line has been constructed underground in order to improve the cityscape. In distributing electricity from power lines to buildings and the like, ground equipment (hereinafter, collectively referred to as “ground equipment”) of transformer towers and switchgears that connect them is installed on the ground. This ground equipment generally has various specifications, such as one occupying a part of a sidewalk deviated toward the roadway, or a roofside arrangement installed near a building.

Conventionally, such a ground equipment is a concrete top plate provided with a rising portion for installing the ground equipment and an opening for attaching a manhole cover as a cover for the opening of the common groove. It was prepared in advance and set on this top plate as shown in FIG.

FIG. 1A shows the simplest construction example, in which a ground equipment 52 is installed and fixed at a position deviated to one side on a top plate 51, and a manhole for an operator to enter and exit in front of the ground equipment 52. Is closed. And
The ground equipment 52 is provided with an opening / closing door 52a on the front surface, so that inspection of the internal equipment and the like can be performed from the front. In the case of a switchgear tower, an opening / closing door is provided on the front surface, while in the case of a transformer tower, a switching door is provided on a side surface.

[0005] Examples of the figure (b) is switch tower 53
In the case where two transformer towers 54 are arranged side by side, the construction is performed using a top plate 55 having a size different from that of FIG. In addition, two openings for communicating between the inside of the switch tower 53 and the transformer tower 54 and the inside of the common ditch are provided in the transformer tower 5.
The opening and closing door provided on the side of 4 is positioned so as not to hit the switch tower 53, and one manhole is required for an operator to enter and exit the common groove.

Further, (c) of the figure shows the top plate 5 of the figure (a).
1 shows an example in which two switch towers 53 and two transformer towers 54 are arranged side by side . In this case, the switch door 53a of the transformer tower 54 is connected to the switch tower 53 arranged adjacently.
It must be installed with a certain interval so that it does not hit .

[0007]

As described above, since the top plate itself is not standardized for various construction conditions, different top plates are prepared in advance depending on the number of ground equipment to be installed. There is a need. And since the dimensional specifications of the ground equipment itself vary depending on the manufacturer,
Even when the ground equipment of a certain manufacturer has produced a top plate so as to correspond to installation one or two, may not be available for terrestrial equipment by other manufacturers.

Also, as shown in FIG.
In the case where the switch tower 53 and the transformer tower 54 are arranged using 1, it is necessary to make the interval between the top plates 51 larger than the turning trajectory when opening the door 54 a provided on the side surface of the transformer tower 54. is there. In this case, since the specifications of the transformer tower 54 are variously different, the interval between the top plates 51 is determined, for example, at the site after the selection of the model, so that the construction tends to be complicated. And the opening and closing door 54a of the transformer tower 54
Since the top plate 51 is installed at the site based on the size of the slab, the construction error also increases, and for example, there is a possibility that the space between the top plates 51 may be too large to take up more construction space than necessary. .

As described above, in the installation of the ground equipment using the conventional top plate, the specifications of the ground equipment are variously different, and the construction is different every time the number of arrangements and the positions of the doors are changed. since the addition it is necessary to prepare a different top plate of a number of shapes to accommodate a variety of specifications, often complicated in terms of workability.

Furthermore, during the installation work of the ground equipment, the wiring work between the cables of the power line or the like which is disposed co-groove is performed, the specification of the ground equipment variously for different for each manufacturer In addition, the wiring position of the cable also varies in various ways. A restraining member to prevent the cable from coming off is attached to the inner wall surface of the top plate, but there are many insert nuts for this attachment so that they can be selected according to the wiring position to the ground equipment. Had to be buried.

Problems to be solved in the [0011] present invention, simply can ground equipment Installation by one of receiving frame, or a combination thereof irrespective exactly to the specifications and the number of installed ground equipment, moreover ground cable wires also can be easily An object of the present invention is to provide a receiving frame of a device and an adapter for cable wiring in the receiving frame.

[0012]

The present invention SUMMARY OF] is a receiving frame to be installed on the joint groove to install a terrestrial equipment cables disposed within joint groove underground Ru is connected to ground, and joint groove A receiving frame body having an opening communicating with the ground equipment, and fixed over the opening of the receiving frame body ,
A mounting lid for mounting the ground equipment is provided on the upper surface thereof, and the mounting lid is characterized in that the mounting lid is provided with a mounting part whose part corresponding to the area included in the bottom surface of the ground equipment is opened.

Further, the adapter is provided with a bracket to expand substantially flat in in the mounting portion with inserted into the detachable in the portion Mounting provided receiving frame for mounting the support on the ground equipment, the cable to the bracket Can be configured to be detachable.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In such a configuration, the mounting portion may be unevenly arranged with respect to the entire planar shape of the mounting cover, or the cable may be dropped down from the mounting portion to a predetermined position. The adapter for restraining the position and the posture of the camera can be detachably provided. Also,
Screws to fix the restraining member are provided on the adapter bracket.
A plurality of screw holes to be screwed can be formed, or these screw holes
Bracket formed to be symmetrical about the center
Can be arranged as opposed to each other.

[0015]

DETAILED DESCRIPTION FIG. 1 is a schematic view showing the disassembled main part of the receiving frame A ground apparatus according to the present invention.

In the figure, a receiving frame main body 2 is mounted on the upper end of a common groove 1 buried underground and fixed thereto. In addition, the upper end of the common groove 1 is at a level lower than the sidewalk surface,
The lower end of the receiving frame body 2 is buried underground
You.

The receiving frame body 2 has a frame-like planar shape, as well as approximately half the the manhole opening 2a, is obtained by the half remaining the set opening 2b of the ground equipment 31, these openings 2a , respectively are provided detachably mounting cap 4 for fixing the manhole cover 3 and the ground device 31 to 2 b. Then, by fixing by placing the ground on the device 31 on the upper surface of the mounting cover 4, Figure 2
The ground equipment 31 can be installed on the sidewalk as shown in FIG.

FIG. 3 is a plan view of the receiving frame A, and FIGS. 4 and 5 are longitudinal sectional views taken along lines AA and BB in FIG.

The receiving frame body 2, co-groove 1 a flange-like portion provided at the lower end placed on the upper end of the joint groove 1 by anchor bolts passing through the flange portion (not shown)
The manhole opening 2a and the setting opening 2b receive the manhole cover 3 and the mounting cover 4 by taper fitting , respectively.

The manhole cover 3, the co-when loaded laid blocks such equivalent block on the sidewalk on the upper surface, the lower surface provided with wheels 3a, the operation of hooking the special tool to a predetermined site, 3 The manhole cover 3 can be rolled up by pulling it up to the right or left side of the ground. When the manhole cover 3 is closed, the manhole cover 3 can be similarly returned to the original position by using the rolling of the wheels 3a.

The mounting lid 4 has a tapered surface 4a formed on the entire periphery of the lower end thereof fitted into the setting opening 2b, and a bolt 4 penetrating a fixed seat 4b provided on the inner periphery of the lower end.
c is screwed into a nut 2c provided on the receiving frame main body 2 to be integrally fixed. Then, as shown in FIG. 5, the co-when to open the upper surface thereof up a portion excluding the right end of the spacer portion 4f, and a base portion 4d of the frame-shaped mounting portion for mounting the ground equipment 31, this 4 of base part 4d
A nut 4e for connecting and fixing the lower end of the ground equipment 31 with a fixing bolt is provided at a location.

The scan pacer unit 4f is obtained by the extent to which the same height as the upper end of the receiving frame body 2 when the cover mounting lid 4 into receiving frame body 2, the recessed portion as shown in FIG. 5 Like the manhole cover 3, a block or the like is loaded. The width is slightly larger than half the width of the side surface of the ground equipment 31.

[0023] Here, the ground device 31, those of the mains or for switchgear tower and transformers towers of various of branch is the subject, the specification by the manufacturer, as described in the prior art section It is Ru different variety. For this reason, the connection form with the cable such as the power line in the common groove differs for each specification,
It is necessary to enable a connection that matches the built-in equipment of the ground equipment 31. As shown in FIG. 6, a wiring adapter 21 is mounted on the mounting cover 4 in order to facilitate such wiring connection.

The adapter 21 shown in Figure 6, along with placing the flange 21a on the upper surface of the base portion 4d of the mounting lid 4,
The lower end of the hole in the ground device 31 to fix the upper surface (not shown) has a hole 21b in four locations to be coaxial, and so as to be fixed to the base portion 4d with fixing bolts, the base portion 4d
The two brackets 21c that fall into the inside are arranged to face each other. And these brackets 21c
A plurality of screw holes 21d are opened at predetermined positions, and the U-shaped fixture 22 is attached with screws 22a using two of these screw holes 21d. Be able to hold it through the cable.

The holes provided at the four corners of the flange 21a are used as a grip portion by screwing an eye bolt when the adapter 21 is attached or detached , or as a hook portion when the adapter 21 is hung.

FIG. 7 shows another example of the adapter 23. Similar to the adapter shown in FIG. 6, a fixing bolt having a hole at the lower end of the ground equipment 31 inserted through the upper surface of the base 4d of the mounting cover 4 is used. In addition to the flange 23a to be fixed and the pair of brackets 23b projecting downward from the flange 23a, another bracket 23c is provided, and these brackets 23b, 23c are respectively U-shaped fixtures 22 similar to those shown in FIG. Screw holes 23d and 23e for fixing the
Is opened.

[0027] By the structure where dropped in the mounting cap 4 fixed to such an adapter 21, 23 to the base portion 4d, the case where the wiring position of the cable is changed specification of the ground equipment 31 is varied Also, screw holes 21d, 2d of the respective brackets 21c, 23b, 23c.
The U-shaped fixture 22 depends on the combination of the positions of 3d and 23e.
Can be dealt with simply by changing the position of.

In the above configuration, the receiving frame main body 2 is placed on the upper surface of the underground common groove 1 and fixed by an anchor bolt. The mounting cover 4 is covered on the setting opening 2b, and the adapter 21 is mounted to mount the ground equipment 31. was placed, after connecting a joint groove 1 within <br/> a cable and ground equipment 31 disposed within joint groove 1, manhole cover 3 in the manhole opening 2a
Are fitted and supported.

Incidentally, as a device for holding a cable ,
In addition to the U-shaped fixture 22, the opposite bracket 21c
It may be a long fixing device having both ends fixed to each other so that a plurality of cables can be held therebetween.

In the posture of the mounting cover 4 shown in FIG. 1, a fixing bolt (not shown) having a hole at the lower end of the ground equipment 31 inserted therethrough.
Is screwed into the nut 4e to be disposed on the left side when viewed from the front. That is, mounting the lid 4, ground equipment 3
In the posture shown in FIG. 1, the base portion 4 d having a frame shape is placed not in the entire width of the mounting lid 4 but in a plane shape except for the spacer portion 4 f on the right end side when viewed from the front. For this reason, the base portion 4d has a positional relationship deviated leftward with respect to the entire width of the receiving frame main body 2, and the ground equipment 31 mounted and fixed to the base portion 4d is also disposed to be deviated leftward with respect to the receiving frame main body 2. Will be installed.

With such a biased arrangement of the base portion 4d, the ground equipment 31 can be arranged on the right side contrary to the left side arrangement in FIG. That is, by setting the tapered surface 4a on the lower end side of the mounting lid 4 to be aligned with the setting opening 2b, it can be fitted into the setting opening 2b even if the left and right directions are switched from the state of FIG. Therefore, if the mounting lid 4 is mounted on the receiving frame main body 2 with the left and right inverted, the ground equipment 31 can be arranged on the right side with respect to the receiving frame main body 2 as shown in FIG.

As described above, the ground equipment 3 can be changed simply by changing the left and right directions of the mounting cover 4 with respect to the common receiving frame body 2.
1 can be installed as a right or left arrangement, the position of the ground equipment 31 can be selected according to the construction site, and the degree of freedom of construction is improved.

[0033] Figure 9 is a schematic plan view showing a construction example of placing two side by side on the ground equipment.

The transformer tower 32 and the switch tower 33 shown in FIG.
Among them, the transformer tower 32 a door 32a provided on the side of the left and right switch tower 33 having thereon a door 33a on the front surface, these transformers tower 32 and switch column 33
Interval to place the opened door 32a which is provided on the side surface
That it is necessary to the extent possible. Therefore, as shown in the figure, the transformer tower 32 arranged on the right side with respect to the receiving frame main body 2 and the switch arranged on the left side with respect to the receiving frame main body 2 .
If the tower 33 is arranged on the left side, the transformer tower 32 and the switch
Can Rukoto expand the interval between the death if the tower 33.

At this time, the width of the spacer portion 4f of the mounting lid 4 is made slightly larger than half of the width of the opening / closing door 32a provided on the side surface of the one transformer tower 32, as shown in FIG. The transformer tower 32 and the switcher tower 33
Spacing between is larger than the width of the door 32a, those of the door 32a to the other of the switch tower 33 be opened and closed
There is no Rukoto was.

As described above, the transformer tower 32 and the open
When two closing towers 33 are arranged side by side , the transformer tower 32 and the opening and closing can be opened even when the direction of the mounting lid 4 is reversed.
In this case, since the direction of the instrument tower 33 cannot be changed, in this case, the adapter 21 is once removed and fixed to the mounting lid 4 whose direction has been changed. However, if provided symmetrically the position of the screw holes 21d provided more on the bracket 21c with respect to the center of the width of the base portion 4d, the screw without removing the adapter 21 when replacing the orientation of the mounting cover 4 holes Since the arrangement of 21d is not changed,
Easy cable routing without removing the adapter 21
It can be carried out.

[0037] Thus, when arranging two side-by-side transformer tower 32 and switchgear tower 33, if to have a dimensional relationship such as before the spacer portion 4f of the mounting cover 4, two receiving frame body It is only necessary to set the two ends in a state where they face each other. Therefore, by setting such a positional relationship between the receiving frames A as a reference, there is no need to perform dimensional measurement or on-site alignment at the site, thereby improving the workability and the work accuracy.

[0038] Figure 10 and Figure 11 is an embodiment in which the mounting lid for narrow ground equipment width, receiving frame body 2 is the same as shown above, also application of the joint groove 1 like It is.

The setting opening 2b of the receiving frame body 2 (see FIG. 1)
The mounting lid 5 to be fitted and fixed in the above-described example has a base portion 5a formed at an interval from both left and right ends in the width direction, and only the position of the base portion 5a is the same as that shown in the above example. Is different. That is, as shown in FIG. 10, flat spacer portions 5b and 5c are formed to the left and right sides of the base portion 5a to the respective ends, and the left spacer portion 5b is longer than the width dimension of the right spacer portion 5c. . Therefore, the base portion 5a is arranged rightwardly corresponding to the width difference between the spacer portions 5b and 5c. In the example shown in FIG. Further, when replacing the left and right mounting lid 5 from the state of FIG. 10, it is possible to the left place the base portions 5a as shown in FIG. 11, the spacer section 5
The width of b is half of the width of the door provided on the side of the transformer tower.
If slightly larger than, as described above, it is possible to cope with a case of arranging two side-by-side ground equipment.

[0040]

According to the present invention, it is possible to construct a single receiving frame body simply by covering the mounting lid corresponding to the specification of each ground equipment and installing the ground equipment in accordance with the mounting portion. than those obtained by unevenly distributed mounting portion of the mounting cover, by orientation left and right reversal of the mounting cover, ground equipment can be installed as a right or left located on receiving frame, in correspondence with the site may be installed on the ground equipment .

In addition, when the two ground equipments are arranged side by side by making the spacer part for displacing the mounting part slightly larger than half the width of the opening / closing door provided on the side surface of the ground equipment, the spacer parts are adjacent to each other. The opening and closing doors on the side can be opened and closed without hitting the adjacent ground equipment simply by abutting the receiving frame with the mounting lid turned left and right, so that the distance between the ground equipment can be easily measured. Can be constructed.

Further, since the adapter can be attached to and detached from the mounting lid, the direction of the adapter can be fixed even when the mounting lid is mounted on the receiving frame body with the orientation of the mounting lid reversed, so that wiring to the ground equipment can be performed. Can be easily performed regardless of the orientation of the mounting lid. Also, the adapter block
The racket is used to secure cable restraint members.
Screw holes for screwing screws
Therefore, the cable can be easily wired. Only
Also, be sure to symmetrically position the center of the width of the
Form multiple screw holes in the racket and face this bracket
This allows screws to be inserted even if the orientation of the adapter is changed.
The orientation of the mounting lid is switched because the hole arrangement is not changed
Cable without having to remove the adapter when
It can be done easily.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a main part of a receiving frame of a ground equipment according to the present invention.

FIG. 2 is a perspective view showing a state where ground equipment is installed.

FIG. 3 is a plan view of a main part excluding ground equipment.

FIG. 4 is a longitudinal sectional view taken along line AA of FIG. 3;

FIG. 5 is a longitudinal sectional view taken along line BB of FIG. 3;

FIG. 6 is an exploded perspective view showing a mounting lid and an adapter provided on the mounting lid.

FIG. 7 is a perspective view showing another example of the adapter.

8 is a perspective view when the mounting lid is switched left and right from the state of FIG. 1 and the ground equipment is arranged on the right side.

9 is a schematic plan view showing a construction example of when arranging two side-by-side ground equipment.

FIG. 10 is a perspective view showing an example in which a mounting lid having a spacer portion on the left and right sides of a base portion is provided.

11 is a perspective view when the mounting lid of FIG. 10 is set on a receiving frame with the left and right inverted.

FIG. 12 is a schematic diagram showing an example of installation of conventional ground equipment.

[Explanation of symbols]

A: Receiving frame 1: Joint groove 2: Receiving frame body 2a: Manhole opening (opening) 2b: Set opening (opening) 3: Manhole cover 3a: Wheel 4: Mounting lid 4a: Tapered surface 4b: Fixed seat 4c: Bolt 4d: Base part (mounting part) 4e: Nut 5: Mounting lid 5a: Base part (mounting part) 5b: Spacer part 5c: Spacer part 21: Adapter 21a: Flange 21b: Hole 21c: Bracket 21d: Screw hole 22: U-shaped fixture (restraint member) 22a: Screw 23: Adapter 23a: Flange 23b: Bracket 23c: Bracket 23d: Screw hole 23e: Screw hole 31: Ground equipment 32: Transformer tower ( Ground equipment ) 32a: Opening / closing door 33 : Switch tower ( ground equipment ) 33a: Switch door

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Tomokazu Yamamoto 730, Oaza, Shingu-cho, Kasuya-gun, Fukuoka Prefecture Inside Seto Works Co., Ltd. Hino Water Supply Equipment Co., Ltd. (56) References JP-A-64-64508 (JP, A) JP-A-8-79952 (JP, A) JP-A-10-14073 (JP, A) JP-A-1 −304268 (JP, A) Japanese Utility Model 2-10729 (JP, U) Japanese Utility Model 63-29331 (JP, U) Japanese Utility Model 4-131133 (JP, U) Japanese Utility Model 5-29237 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) H02G 9/00-9/12

Claims (7)

(57) [Claims] 1. A receiving frame is mounted on a joint groove to mount a joint groove terrestrial equipment cables Ru is connected which is arranged in the underground on the ground, communicating between the joint groove and ground equipment a receiving frame body having an opening that is fixed overlaying the opening of the receiving frame body, and a mounting cap for mounting the ground equipment on its upper surface, the mounting lid, corresponding to the areas included in the bottom surface of the ground equipment A receiving frame for terrestrial equipment, comprising a mounting portion having an open portion. 2. The receiving frame of a ground equipment according to claim 1, wherein the mounting portion is biased with respect to the entire planar shape of the mounting lid. With the 3. mounting at least one spacer portion of both end portions of the lid, it allowed to localize preparative mounting portion by the spacer portion, further the width of the door width of the spacer portion provided on a side surface of the ground equipment Slightly larger than half
Receiving frame ground on the device according to claim 1 or 2, characterized in that. 4. Use for receiving frames for installing ground equipment on the ground
Cables placed in underground common ditches
An adapter to be carried, and a receiving frame for mounting and supporting ground equipment
When detachably inserted into the mounting part provided in
Bracket that expands almost flat in the mounting part
And a restraining member for restraining a cable to the bracket.
Receiving frame for ground equipment characterized in that it can be detached
Adapter for cable wiring in. 5. A bracket for fixing a restraining member to the bracket.
It is characterized by having a plurality of screw holes for screwing
The adapter for cable wiring in the receiving frame of the ground equipment according to claim 4 . 6. The bracket has a pair at the center of the width of the mounting portion.
To form a symmetrical screw hole,
6. The device according to claim 4, wherein the devices are arranged to face each other.
Adapter for cable wiring in the receiving frame of ground equipment described in
Puta. 7. The mounting lid according to claim 4, wherein :
2. An adapter according to claim 1, wherein said adapter is detachably provided.
3. The receiving frame of the ground equipment described in any one of 3.