JP3005335U - Temporary power supply system - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain a temporary power supply system that enables orderly wiring extension, high safety, and easy and reliable installation. [Configuration] An intermediate unit 3 having a power cord is connected to a terminal unit 4 having an external connection outlet 42. In the intermediate unit 3, the power cord is inserted inside the pipe-shaped member 31, and the plug 33 and the outlet 34 are fixed to both ends of the pipe-shaped member 31. The plug 43 of the terminal unit 4 is fitted into the outlet 34 of the intermediate unit 3, and the plug 44 of the intermediate unit 3 is inserted into the outlet 44 of the terminal unit 4.
Are fitted. By sequentially connecting the plurality of intermediate units 3 and the terminal unit 4, the electrical and mechanical extension of the wiring of the power source can be performed neatly, easily and reliably.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a temporary power supply system that is attached to a building scaffold or the like for using a machine tool or the like in various construction sites, for example.

[0002]

[Prior art]

 Conventionally, as shown in FIG. 8, for example, at a construction site, various machine tools 51 such as a grinder and a drill, a temporary illumination lamp 52, and the like are used for work. In order to connect the power plugs of such tools and lamps to the outlets, usually, a drum type extension cord 54 is used to provide a large number of outlets from the outlet of the power supply source 53 for taking a temporary power supply. I have to. When further extending the wiring, another drum type extension cord 54, an extension cord 55 having a plurality of outlets, or the like is used.

Further, as shown in FIG. 9, at a site where a building scaffold 61 is assembled, a drum type extension cord 54 connected to a power supply source 53 is placed on a scaffold plate 62, and another drum connected to this is attached. The wiring is extended by placing the drum type extension cord 54 on the scaffolding plate 62 in the upper stage.

[0004]

[Problems to be solved by the device]

 However, as described above, the conventional installation situation of the temporary power source is that the power cord is laid around by the wiring of the octopus legs by the drum type extension cord 54 or the like to provide a large number of components. For this reason, the power cords are laid around randomly on the floor or on the scaffolding plate 62, so that the power cord may be inadvertently caught on the foot during work, or in some cases, on the scaffolding plate 62. There is a problem that it is extremely dangerous in terms of work, such as accidentally dropping the drum 54. In addition, there were safety problems, such as easy leakage of electricity due to rainwater or water leaks.

Therefore, an object of the present invention is to provide a temporary power supply system that enables orderly wiring, has high safety, and is easy and secure to install.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the temporary power supply system according to the present invention connects a plurality of terminal units each having an external connection outlet for connecting a power plug of an external device, and the terminal units. And a pair of connector members connected to the power cord are provided at both ends of a pipe-shaped member having the power cord inserted therein. Each of the terminal units is provided with at least a pair of connector members to which the connector members of the intermediate unit can be detachably fitted and which can be locked in the fitted state, in the terminal body provided with the external connection outlet. It is something that has been scrapped.

The temporary power supply system according to the present invention includes a plurality of terminal units each having an external connection outlet for connecting a power plug of an external device, and at least one of the terminal units from a power supply source. It is composed of an introduction unit having a power cord for guiding a power source and an intermediate unit having a power cord for connecting between the respective terminal units. The introduction unit has the power cord inserted therein. A power cord extending from one end of the pipe-shaped member is provided with a plug connected to the outlet of the power source, and a connector member connected to the power cord is provided at the other end of the pipe-shaped member. The power supply cord is inserted inside the pipe-shaped member at both ends of the intermediate unit. A pair of connector members connected to the cord are provided, and each terminal unit has a connector body of the introduction unit and a connector member of the intermediate unit in a terminal body provided with the outlet for external connection. At least a pair of connector members that can be detachably fitted and that can be locked in the fitted state are provided.

It is preferable that the connector members of the terminal unit are provided on the upper and lower surfaces and the left and right surfaces of the terminal body.

Further, it is preferable that a bendable flexible portion is provided on at least one of the pipe-shaped member of the intermediate unit and the pipe-shaped member of the introduction unit.

[0010]

[Action]

 According to the temporary power supply system of the present invention configured as described above, by fitting the connector member of the intermediate unit having the power cord to the connector member of the terminal unit having the external connection receptacle, a plurality of terminals are provided. The units are electrically connected. In the intermediate unit, the power cord is inserted inside the pipe-shaped member, and the connector member provided at the end of the pipe-shaped member can be locked in a fitted state with the connector member of the terminal unit. Connection will be reliable. As a result, there is no loosening of the power cord between multiple terminal units or disconnection of the connector member, and it is possible to extend the orderly wiring, which can improve safety and prevent leakage of electricity. The risk of can be eliminated. Note that normal power supply cords may be used to introduce power from the power supply source to the terminal unit, but especially when the introduction unit is used, wiring from the power supply source can be done in an orderly manner. .

Moreover, in addition to the orderly wiring as described above, the installation can be performed easily and reliably by connecting the units. In addition, there is a high degree of freedom in installation due to the combination of units, and each unit can be used repeatedly.

If the connector members of the terminal unit are provided on both upper and lower surfaces and left and right surfaces of the terminal body, the intermediate unit can be connected vertically and horizontally, so that the wiring should be extended in the vertical and horizontal directions. Is possible.

Furthermore, if a bendable flexible portion is provided on at least one of the pipe-shaped member of the intermediate unit and the pipe-shaped member of the introduction unit, the angle of the pipe-shaped member can be changed, so that it can be changed depending on the site. It is easier to install.

[0014]

【Example】

 An embodiment in which the present invention is applied to a temporary power supply system at a construction site will be described below with reference to FIGS.

First, as shown in FIGS. 5 and 6, the temporary power supply system according to the present embodiment is attached to a building scaffold 61, and an introduction unit 1 for guiding power from a power supply source 53 (AC 100 V). The connecting unit 2 is connected to the introducing unit 1, the intermediate unit 3 is connected to the connecting unit 2, and the terminal unit 4 is connected to the intermediate unit 3. A plurality of intermediate units 3 and terminal units 4 are further connected in series.

Next, as shown in FIG. 2, in the introduction unit 1, a power cord 12 is inserted into a pipe-shaped member 11 made of, for example, a resin, and the pipe-shaped member 11 is made of resin. A plug 13 is provided on a power cord 12 extending from one end, and an outlet 14 is fixed to the other end of the pipe-shaped member 11. Then, the plug 13 of the introduction unit 1 is connected to the outlet of the power supply source 53.

Next, as shown in FIG. 3, in the connecting unit 2, a power cord 22 is inserted into a pipe-shaped member 21 having a substantially L shape similar to that described above. A plug 23 is fixed to one end of 21 and an outlet 24 is fixed to the other end. Further, a bellows-like flexible portion 21a that is bendable and expandable and contractible by about 20 to 40 cm is provided in a part of the pipe-shaped member 21, and as shown in FIG. It is possible to change the axial position and angle of the pipe-shaped member 21 before and after. Then, the plug 23 of the connecting unit 2 is fitted into the receptacle 14 of the introducing unit 1.

Next, as shown in FIG. 4, in the intermediate unit 3, the power cord 32 is inserted into the inside of the pipe-shaped member 31 which is linear and is similar to the above. Has a plug 33 fixed to one end thereof and an outlet 34 fixed to the other end thereof. Then, the plug 33 of the intermediate unit 3 is fitted into the outlet 24 of the connecting unit 2. The intermediate unit 3 preferably has a plurality of lengths such as 1.6 m, 2.4 m, and 3.2 m 2.

Next, as shown in FIG. 1, the terminal unit 4 is provided with a plurality of external connection outlets 42 on the front surface of a box-shaped terminal body 41. These receptacles 42 are for connecting power tools such as various machine tools 51 and illumination lamps 52 (see FIG. 8). A lid 45 for covering the outlet 42 is provided on the terminal body 41 so as to be openable and closable so that it can be waterproof and dustproof. A plug 43 is provided on the lower surface of the terminal unit 4, and an outlet 44 is provided on the upper surface. Of course, the outlet 42, the plug 43, and the outlet 44 are electrically connected in parallel in the terminal body 41. Then, the plug 43 of the terminal unit 4 is fitted into the outlet 34 of the intermediate unit 3.

Then, a plug 33 of another intermediate unit 3 similar to that described above is further fitted into the outlet 44 of the terminal unit 4, and the terminal unit 4 and the intermediate unit 3 are sequentially connected. Note that the outlet 44 of the terminal unit 4 in the extended final position is equipped with a cap 46 for waterproofing and dustproofing, as shown by a phantom line in FIG.

As shown in FIGS. 1 (c) and 1 (d), the plug 43 has three terminal pins 43b, the outlet 44 has three pin insertion holes 44b, and one set is grounded. Used as. The same applies to the other plugs 23 and 33 and the outlets 14, 24 and 34. That is, the outlets 14, 24, 34, 44 and the plugs 23, 33, 43 of the units 1, 2, 3, 4 and the plugs 23, 33, 43 have the same specifications, so that the degree of freedom in combining the units can be improved. At the same time, it is possible to reduce the types of parts of the outlet and the plug. Also, by tightening the rotary flanges 23a, 33a, 43a of the plugs 23, 33, 43 to the screw parts 14a, 24a, 34a, 44a of the outlets 14, 24, 34, 44, they can be locked in a fitted state. In addition, it is waterproof and dustproof as well as preventing separation.

In the temporary power supply system configured as described above, as shown in FIGS. 5 and 6, the pipe-shaped member 31 of the intermediate unit 3 is fixed to the vertically assembled pipe of the building scaffold 61 by the mounting bracket 63. , A terminal unit 4 is connected between each intermediate unit 3. Note that the attachment fitting 63 may be a fixing fitting for scaffolding assembly. The position of the terminal unit 4 can be set to any position in the vertical direction by selecting the length of the intermediate unit 3. However, when the position of the worker standing on the scaffold plate 62 is set to the height position of the machine tool, It is convenient because the power cords such as are not in the way. Then, the power supply source 53 and the lowermost intermediate unit 3 are connected by the introducing unit 1 and the connecting unit 2. The installation direction can be easily changed by the connection unit 2, and the introduction unit 1 can be pulled under the scaffold plate 62 by the flexible portion 21a of the connection unit 2.

As described above, by sequentially connecting the introduction unit 1, the connection unit 2, the plurality of intermediate units 3 and the plurality of terminal units 4, the electrical and mechanical extension of the wiring of the power source is systematically performed. Moreover, it can be performed easily and surely. This prevents the power cord from being inadvertently caught on the foot or accidentally dropping the drum when working, as in the case where the power cord was routed using a conventional drum extension cord. , Very safe. Moreover, the waterproof effect against rainwater and leakage is high, and the risk of electric leakage is eliminated.

Next, FIG. 7 shows a terminal unit in another embodiment. In this example, a pair of outlets 44 are provided not only on the upper and lower sides of the terminal body 41 of the terminal unit 4, but also on the left and right sides. Therefore, the intermediate unit 3 can be connected to the terminal unit 4 not only in the vertical direction but also in the horizontal direction. Accordingly, the wiring can be extended in the lateral direction of the building scaffold 61 to provide another terminal unit 4. The terminal unit 4 and the intermediate unit 3 in the lateral direction are preferably provided along the vicinity of the scaffolding plate 62. Also, one of the pair of outlets 44 on the left and right sides of the terminal unit 4 in this example may be the plug 43, but if there are multiple output sides with the lower plug 43 as the input side as in this example, these output sides In terms of safety, it is preferable to use an outlet 44 in which the terminal pins are not exposed.

Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various effective modifications and applications can be made based on the technical idea of the present invention. For example, the connector members shown as plugs and outlets in the embodiments may have various structures. Further, although the coupling unit having the flexible portion is used in the embodiment, the coupling unit can be configured as a part of the introduction unit or the intermediate unit, and therefore, the flexible portion is connected to the introduction unit and the intermediate unit. You may provide in at least one. In addition, although the temporary power supply system attached to the building scaffolding at the construction site has been described in the embodiment, this system is not limited to the construction site and can be used at a civil engineering site or in a short-term by changing each unit, mounting bracket, or the like. It can be applied to various types of sites that require power supply, such as various exhibition venues and event venues.

[0026]

[Effect of device]

 As described above, according to the present invention, when installing a temporary power source, for example, at a construction site, it is possible to install the power cord wiring and the outlet by using a plurality of terminal units and intermediate units, more preferably the introducing unit. It can be done in an orderly manner. Therefore, since it is not necessary to wire the octopus legs with a drum extension cord or the like as in the conventional case, it is possible to remarkably improve the safety during work and to eliminate the risk of electric leakage. Moreover, since each unit is connected, the installation can be performed easily and surely, and the degree of freedom and versatility can be enhanced by changing the units. Further, each unit can be used repeatedly, and can be widely provided to users by leasing, for example.

[Brief description of drawings]

1A and 1B show a terminal unit in an embodiment of a temporary power supply system according to the present invention, FIG.
Is a side view, (c) is a top view, and (d) is a bottom view.

FIG. 2 is a sectional view of an introduction unit in the above embodiment.

FIG. 3 is a sectional view of a connecting unit in the above embodiment.

FIG. 4 is a sectional view of an intermediate unit in the above embodiment.

FIG. 5 is a front view showing a state in which the temporary power supply system of the above-described embodiment is provided on a building scaffold.

FIG. 6 is a side view showing a state in which the temporary power supply system of the above embodiment is provided on a building scaffold.

FIG. 7 shows a terminal unit according to another embodiment, (a) is a front view, (b) is a side view, (c) is a top view, and (d) is a bottom view.

FIG. 8 is a schematic diagram illustrating the usage status of a conventional temporary power supply at a construction site.

[Fig. 9] Fig. 9 is a schematic diagram illustrating the usage status of a conventional temporary power source on the site of a building scaffold.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Introduction unit 2 Connection unit 3 Intermediate unit 4 Terminal unit 11, 21, 31 Pipe-shaped member 21a Flexible part 12, 22, 32 Power cord 13 Plug 23, 33, 43 Plug 23a, 33a, 43a Rotating flange 43b Terminal pin 14 , 24, 34, 44 Outlet 14a, 24a, 34a, 44a Screw part 44b Pin insertion hole 41 Terminal body 42 External connection outlet 45 Lid 46 Cap

Claims (4)

[Scope of utility model registration request] 1. A plurality of terminal units having an external connection outlet for connecting a power plug of an external device, and an intermediate unit having a power cord for connecting between the respective terminal units, The intermediate unit is provided with a pair of connector members connected to the power cord at both ends of a pipe-shaped member having the power cord inserted therein, and each of the terminal units is provided with the outlet for external connection. The temporary power supply system, wherein the terminal main body is provided with at least a pair of connector members to which the connector members of the intermediate unit can be detachably fitted and which can be locked in the fitted state. 2. An introduction having a plurality of terminal units having an external connection outlet for connecting a power plug of an external device, and a power cord for guiding power from a power supply source to at least one of the terminal units. The introduction unit includes a unit and an intermediate unit having a power cord for connecting between the terminal units, and the introduction unit has a power cord extending from one end of a pipe-shaped member having the power cord inserted therein. A plug connected to the outlet of the power supply source, and a connector member connected to the power cord at the other end of the pipe-shaped member, wherein the intermediate unit has the power cord internally. A pair of connector members connected to the power cord are provided at both ends of the pipe-shaped member inserted in the Each of the terminal units can be detachably fitted with the connector member of the introduction unit and each connector member of the intermediate unit, and is locked in the fitted state to the terminal body provided with the outlet for external connection. At least a pair of possible connector members are provided, The temporary power supply system characterized by the above-mentioned. 3. The temporary power supply system according to claim 1, wherein each connector member of the terminal unit is provided on both upper and lower surfaces and left and right surfaces of the terminal body. 4. The temporary power supply according to claim 1, wherein a bendable flexible portion is provided on at least one of the pipe-shaped member of the intermediate unit and the pipe-shaped member of the introduction unit. system.