JPH0541339U - Cable support device - Google Patents

Abstract

(57) [Summary] [Purpose] Attaching to and removing from the container easily and with good workability. [Structure] The cable support 36 is detachably fitted to the fitting portion 33, and is fixed by tightening a wing nut 35. The cable support 36 also serves as the cleat body, and the cleat pressing plate 39 is directly pressed by tightening the wing nut 38, thereby supporting the branch cable 20.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cable support device for supporting a cable connected to an electric device housed in a housing such as a handhole in the housing.

[0002]

[Prior Art]

 In recent years, a low-voltage wiring system is often laid in the ground. For this reason, recently, a rectangular parallelepiped-shaped handhole is placed between the pipelines in which the main cable is drawn in, and electrical equipment such as a low-voltage branching device is housed in this handhole and buried in the ground. Is being done.

4 and 5 are a plan view and a front view of a three-phase three-wire low-voltage branching device. First, in FIG. 5, 2 is a trunk U-phase cable connecting portion. This U-phase cable connection portion 2 for the trunk line is set up in the handhole 1. Terminals of the U-phase main cable 3 are introduced and connected to the main-U-phase cable connecting portion 2, respectively. On one side of the trunk U-phase cable connecting portion 2, another trunk V-phase cable connecting portion, a trunk W-phase cable connecting portion, and a trunk N-phase cable connecting portion (not shown) are arranged in parallel in this order. Similar to the trunk U-phase cable connector 2, V-phase, W-phase and N-phase trunk cables are introduced and connected to these V, W and N-phase cable connectors, respectively. The upper ends of the trunk cables 3 and the like for each phase are fixed by cleats 4, and each cleat 4 is fixedly attached to the lower part of the support 5 via L-shaped steel 6. A fixing plate 7 is attached to the upper end of the support 5 as shown in FIGS. On this fixing plate 7, there are disposed T-shaped branch bodies 8 which are positioned above the trunk cable connecting portions 2 of the respective phases. These branch bodies 8 are fixed to the fixing plate 7 by pressing plates 9 and 9. A trunk line connecting body 10 is detachably attached to a branching portion 8a of each branching body 8. A connecting portion 11 and the like are detachably attached to these trunk line connecting bodies 10 via a plug-in portion 11a.

A power feeding mains cable 12 of each phase connected to the power fed side is introduced and connected to these cable connection portions 11 and the like. As shown in FIGS. 4 and 5, a branch U-phase cable connecting portion 13, a branch V-phase cable connecting portion 14, and a branch W-phase cable connecting portion 15 are detachably attachable to the other branch portion 8b of each branch body 8, respectively. Is attached to. These branch phase cable connection parts 13, 14, 15 have plug-in parts 16, and each plug-in part 16 is fitted in the branch part 8b. A low-voltage current limiting fuse or the like is housed in the branch-phase cable connecting portions 13, 14, 15, and the conductor of the terminal of the branch cable 20 is connected via this fuse.

A branch N-phase cable connecting portion 17 is detachably attached to the other branch portion 8b of the branch body 8 that branches the N-phase. The branch N-phase cable connecting portion 17 includes the plug-in portion 16 having the same structure as that described above, and the terminal of another branch cable 20 is introduced and connected thereto. The plug-in parts 16 of the U-phase, V-phase, W-phase, and N-phase branch-phase cable connecting parts 13, 14, 15, and 17 are prevented from being pulled out by the abutment of the pull-out preventing metal fitting 18. Both ends are bolted to the fixing plate 7. Further, each trunk line connecting body 10 is pressed by another pull-out preventing metal fitting 19, and both ends of the metal fitting 19 are fixed to the fixing plate 7 via the fixing mechanism 21.

In the low-voltage branching device having the above configuration, one of the U-phase, V-phase, W-phase, and N-phase branch cables 20 is drawn into the customer. In addition, it is possible to supply power to other consumers via the other power feeding main cable 12.

By the way, the plurality of branch cables 20 are supported in the handhole 1 by a conventional cable support device 22. That is, the conventional cable support device 22 has a cable support fitting 23 extending into the handhole 1 and a retracting cleat 24 arranged on the U-shaped main body portion 23a of the fitting 23. The retractable cleat 24 is composed of a cleat body 24a and a cleat holding plate 24b. The stud bolts 25, 25 are inserted and fixed from below at both ends of the main body portion 23a of the cable support fitting 23, and the stud bolt 25 penetrates the cleat body 24a from below. Then, each branch cable 20 is introduced between the cleat body 24a of the retracting cleat 24 and the cleat holding plate 24b, and the wing nut 26 is screwed into the stud bolts 25, 25 from above to create the cleat holding plate 24b. Each branch cable 20 is clamped and fixed by pressing the branch cable 20 toward the cleat body 24a. On the other hand, an L-shaped mounting plate 23b is integrally fixed to one end of the main body 23a of the cable support fitting 23, and a bolt receiving hole 28 is formed in this mounting plate 23b. Then, by fixing the fixing bolt 27 into the bolt receiving hole 28 and screwing the fixing bolt 27 into the side wall 1A of the handhole 1, the mounting plate 23b is fixed to the side wall 1A, and the cable support fitting 23 is fixed to the handhole 1. 1 and is extended and held, thereby supporting the branch cable 20 in the handhole 1.

As described above, when the branch cable 20 is supported by the cable support device 22, it is possible to prevent the branch phase cable connecting portion 13 and the like from being bent by its own weight, so that the internal low-voltage current limiting fuse or the like may be damaged. In addition, since it is possible to prevent the plug-in portion 16 from coming off the branch portion 8b of the T-shaped branch body 8, it is possible to prevent the infiltration of water.

[0009]

[Problems to be solved by the device]

 When an accident occurs on the power-supplied side to which the power feeding trunk cable 12 is connected, the plug-in portion 11a of the cable connecting portion 11 is removed from the trunk line connecting body 10. As a result, it is possible to supply electric power to the customer on the side of the branch cable 20 even during the restoration work on the power-supplied side. On the other hand, in order to disconnect the cable connecting portion 11 in this way, it is necessary for an operator to remove the cable supporting device 22 from the side wall of the handhole 1 and enter the handhole 1.

However, in the conventional cable support device 22, the wing nut 26 is loosened, the cleat holding plate 24b is removed, and then the fixing bolt 27 is loosened by a tool such as a spanner to fix the mounting plate 23b of the cable supporting metal fitting 23. The cable support bracket 23 must be removed by removing it from the bolt 27. That is, the worker is located on the ground, and it is necessary to unscrew the fixing bolt 27 in the lower handhole 1 in an unnatural posture and lift the heavy cable support metal fitting 23 together with the cleat body 24a to remove it. Therefore, there is a drawback in that the work for removing the device 22 involves a great deal of labor and difficulty. The present invention has been made to solve such a point, and can be easily attached and detached to and from a container such as a handhole with good workability, or can be easily and easily installed at a cable support position and a retracted position in the container. An object of the present invention is to provide a cable support device that can be positioned and held with good performance.

[0011]

[Means for Solving the Problems]

 The cable support device according to the present invention is fixed to a wall surface of a housing body in which an electric device is housed and has a fitting portion, and a fixing portion which is slidably and slidably fitted into the housing portion to be housed. It is characterized by including a cable support that extends into the body and supports the cable, and a cleat pressing body that is detachably attached to the cable support and presses the cable. A cable supporting device according to another invention includes a fixing portion fixed to a wall surface of a housing in which an electric device is stored, a cable supporting body swingably connected to the fixing portion, and the cable supporting body. It is characterized by including a holding mechanism for holding the cable at the cable supporting position and a cleat pressing member which is detachably attached to the cable supporting member and presses the cable.

[0012]

[Action]

 The cable support body is not a housing body but is detachably slidably fitted into a separate fitting portion on the fixed portion side. The cleat pressing body is directly attached to the cable support body to support the cable and also serves as the cleat body. Therefore, the device can be easily attached and detached and the weight thereof can be reduced, and the work of removing the device from the container can be performed with good workability. In another cable supporting device, when the holding mechanism is released, the cable supporting member in the cable supporting position swings with respect to the fixed portion and retracts to the retracted position in the housing.

[0013]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1A to 1C are a front view, a plan view and a side view of a cable supporting device according to the present invention. In FIG. 1, 30 is a fixed part. The fixing portion 30 includes a fixing plate 31 fixed to the side wall 1A of the handhole 1. As shown in FIG. 1C, L-shaped bolt receiving holes 31a and 31a are formed on one side of the fixing plate 31, and fixing bolts 32 are inserted into the bolt receiving holes 31a. .. These fixing bolts 32 are screwed into the side wall 1A, whereby the fixing plate 31 is fixed to the side wall 1A. On the other side of the fixing plate 31, a fitting portion 33 having a U-shaped cross section is provided in a protruding manner. A stud bolt 34 projects upward from the upper surface of the fitting portion 33, and a wing nut 35 is screwed into the bolt 34.

Further, in FIG. 1, reference numeral 36 denotes a cable support body, which is formed in a substantially U-shaped cross section, and is provided with a long hole 36 a for inserting a bolt along the longitudinal direction on one end upper surface. Has been. One end of the cable support 36 is slidably fitted on the fitting portion 33 while the stud bolt 34 is engaged with the long hole 36a, and the wing nut 35 is fitted on one end of the cable support 36. By tightening, it is fitted and fixed to the fitting portion 33, whereby the cable support body 36 is positioned at the cable support position in the handhole 1.

From the other end of the cable support 36 and the vicinity of the elongated hole 36a, studs 37 and 37 project upward. Another wing nut 38 is screwed into these studs 37. A cleat pressing plate 39 is arranged above the cable support 36. The cleat pressing plate 39 is provided at both ends with holes 39a, 39a for inserting bolts along the width direction, and the studs 37 are inserted in the holes 39a. Elastic sheets 40, 40 made of synthetic rubber or the like are adhered to the opposing surfaces of the cleat pressing plate 39 and the cable support 36.

In order to support the branch cable 20 connected to the low voltage branching device (see FIGS. 4 and 5) by the cable supporting device of the present invention having the above structure, first, the butterfly nuts 38, 38 are provided. Is loosened to move the cleat pressing plate 39 horizontally and remove it from the studs 37, 37, and position each branch cable 20 on the cable support 36. Next, the holes 39a, 39a of the cleat pressing plate 39 are engaged with the studs 37, 37 to position the cleat pressing plate 39 on the cable support 36, and the wing nuts 38, 38 are tightened to tighten the cleat pressing plate 39. The branch cable 20 is pressed via the elastic sheet 40 and is fixedly supported.

When removing the device, the wing nuts 38, 38 are loosened and the cleat pressing plate 39 is horizontally moved and removed, and subsequently the wing nut 35 is loosened to attach one end of the cable support 36 to the fitting portion 33. Slide to remove. Therefore, the cable support 36 can be removed from the handhole 1 by a simple operation, and the cable support 36 also serves as the cleat body, so that the weight of the entire apparatus can be reduced.

FIGS. 2A to 2C are a front view, a plan view and a side view of a cable supporting device according to another embodiment of the present invention. In this embodiment, the fitting portion 41 constituting the fixing portion 30 is provided with lock pins 42, 42 on its upper surface. On the other hand, at one end of the cable support member 36, as shown in FIG. 3D, an engagement is formed in which a small hole having a long hole is continuously formed in a hole having a diameter slightly larger than the head of the lock pin 42. Holes 43, 43 are provided. Since the other structure is the same as that of the embodiment of FIG. 1, the same parts are designated by the same reference numerals and the description thereof will be omitted.

In the cable support device of the embodiment shown in FIG. 2, the large diameter holes of the engagement holes 43, 43 are aligned with the heads of the lock pins 42, 42 so that one end of the cable support 36 is placed on the fitting portion 41. The shaft of the lock pin 42 is engaged with the small hole of the engagement hole 43 by fitting and sliding the cable support 36 slightly on the fitting portion 41 in the longitudinal direction. As a result, the head of the lock pin 42 is locked to the upper surface of the cable support body 36, so that the cable support body 36 can be positioned at the cable support position.

When removing the cable support 36, the cable support 36 is slid in the opposite direction (side wall 1 A side) on the fitting portion 41 so that the large diameter hole of the engagement hole 43 is in the head of the lock pin 42. Then, the cable support 36 is lifted and removed from the fitting portion 41. 3A to 3C are a front view, a plan view and a side view of a cable supporting device according to another invention. The fixing portion 30 of the cable supporting device has a mounting plate 44 extending horizontally from the fixing plate 31, and the mounting plate 44 is supported by a substantially triangular supporting plate 45. One end of a hinge 46 is fixed to the lower surface of the mounting plate 44, and the other end of the hinge 46 is fixed to one end of the cable support 36. Therefore, the cable support body 36 swings around the hinge 46.

One end of a link member 47 is pivotally supported above the fixed plate 31, and one end of another link member 49 is connected to the other end of the link member 47 via a connecting portion 48. The other end of the other link member 49 is pivotally supported on the side surface on one end side of the cable support 36. The link members 47, 49 and the connecting portion 48 constitute a holding mechanism. When both link members 47, 49 are connected and held in a straight line by the connecting portion 48, the cable support 36 is positioned at the cable supporting position. It Since the other structure is the same as that of the embodiment of FIG. 1, the same parts are designated by the same reference numerals and the description thereof will be omitted.

In the cable supporting device having the above configuration, after loosening the wing nuts 38, 38 and removing the cleat pressing plate 39, the tightening of the connecting portion 48 is loosened, and the link members 47, 49 are connected to each other as shown in FIG. When it is lifted up and folded up as indicated by the arrow (), the cable support 36 swings downward around the hinge 46 accordingly. Therefore, the cable support 36 can be retracted to a position along the side wall 1A of the handhole 1. The holding mechanism may be configured using members other than the link members 47, 49, etc., as long as the holding of the cable support 36 can be easily released.

[0023]

[Effect of the device]

 As described above, according to the present invention, a separate cable support body is detachably slid and fitted to the fitting portion of the fixed portion of the wall surface of the container, and the cable support body is directly attached to the cable support body. Since the cleat pressing member is pressed to support the cable, the weight of the device can be reduced and the device can be easily removed. Therefore, it is possible to provide a cable support device that can be easily and efficiently removed when an operator enters the container. Further, the cable support body swingably connected to the fixed portion is held at the cable support position by the holding mechanism, and the cable is supported by directly pressing the cleat pressing body against the cable support body. The cable support can be easily retracted simply by releasing the holding of the holding mechanism. Therefore, the operator can enter the container without performing the removal work.

[Brief description of drawings]

1A is a front view of a cable support device according to the present invention, FIG. 1B is a plan view of the device, FIG. 1C is a side view of the device, and FIG. 1D is a detachable structure of the device. It is a top view.

2A is a front view of a cable support device of another embodiment, FIG. 2B is a plan view of the device, FIG. 2C is a side view of the device, and FIG. 2D is a detachable structure of the device. It is a top view shown.

3A is a front view of a cable supporting device according to another invention, FIG. 3B is a plan view of the device, and FIG. 3C is a side view of the device.

FIG. 4 is a plan view showing a conventional cable support device together with a low-voltage branch device.

FIG. 5 is a front view showing a conventional cable support device together with a low-voltage branch device.

[Explanation of symbols]

 1 Handhole 1A Side wall 20 Branch cable 30 Fixing part 31 Fixing plate 33, 41 Fitting part 34, 37 Implant bolt 35, 38 Wing nut 36 Cable support 39 Cleat pressing plate 42 Lock pin 43 Engagement hole 46 Hinge 47, 49 Link member

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Yutaka Kobayashi Yu 1-1 Koda Sakae, Kawasaki-ku, Kawasaki City, Kanagawa Prefecture Showa Electric Wire & Cable Co., Ltd. (72) Miyoshi Sato, 309 Nakayama-cho, Midori-ku, Yokohama-shi, Kanagawa Prefecture -6 Tokyo Electric Power Co., Inc. Nakayama Sales Office (72) Inventor Kiyoshi Sakuraoka 309-6 Nakayamacho, Midori Ward, Yokohama City, Kanagawa Prefecture Tokyo Electric Power Co., Inc. Nakayama Sales Office

Claims (2)

[Scope of utility model registration request] 1. A device for supporting a cable, which is connected to the electric device and arranged in a housing body for housing the electric device, the device being fixed to a wall surface of the housing body and having a fitting portion. A fixed portion, a cable support body that is slidably and slidably fitted to the fitting portion and extends into the housing body to support the cable, and a cable that is detachably attached to the cable support body. And a cleat pressing body for pressing the cable support device. 2. A device for supporting a cable, which is connected to the electric device and arranged in a housing body in which the electric device is housed, and includes a fixing portion fixed to a wall surface of the housing body. A cable support body that is swingably connected to the fixed portion, a holding mechanism that holds the cable support body at a cable support position, and a cleat pressing body that is detachably attached to the cable support body and presses the cable. A cable support device comprising: