JP4344709B2 - Pipe connection box - Google Patents

Description

  The present invention relates to a pipe connection box that enables indoor wiring by holding a flexible pipe that guides a cable.

  Conventionally, as a wiring box to be installed in the wall for indoor wiring, a protective tube with a cable inserted is connected to a square box-like box with an open front and a cable insertion hole in the side wall. In some cases, the cable is guided in the box. Such a wiring box is mounted and fixed to a structural material such as a pillar or a stud in the wall or a wall material, and then an interior wall material such as a plaster board is built in the front of the box so that the wiring box is placed inside the wall. Installed. Then, an opening for wiring is formed in the interior wall surface material on the front surface of the box, and the cable led into the box is pulled out from the opening to the indoor side and connected to the wiring device. After that, the part where the cable is drawn out is pushed into the wiring box and stored, and the wiring device is attached to the wiring box.

  As this type of wiring box, for example, in Patent Document 1 below, a plurality of protective tube openings are provided in a box body embedded in concrete, and the protective tubes can be freely attached to and detached from the respective protective tube openings. A configuration of the box device is disclosed. Patent Document 2 describes an outlet box in which a round hole for inserting an electric wire is provided on a side surface.

In addition, a connector is used to connect the wiring opening of such a wiring box to the protective tube through which the cable is inserted, and the cable is guided to the inside of the box through the connector.
Japanese Patent Laid-Open No. 3-169213 JP-A-8-275337

  As described above, the connection of the protective tube to the wiring box via the connector requires such a separate connector, which increases the cost, and the connector is connected to the wiring box or protective tube. There was a problem that it would take time and labor to connect to. In addition, the inner diameter of the protective tube is usually about 16 mm, whereas the outer diameter of the connector is about 30 mm, which is larger than the outer diameter of the protective tube, so the space required to connect the two becomes larger. There was also a problem.

  In addition, considering the recent spread of broadband and lower prices of personal computers, etc., there is a possibility that cables such as optical fibers will be added in the future with the expansion of various infrastructure facilities. It is preferable to be able to respond flexibly. Therefore, apart from the protective pipe of the cable lead quoted to be connected to the wiring box as described above, there is a correspondence that an empty pipeline is laid in advance and a cable is added to this empty pipeline when necessary. Conceivable.

  However, if an attempt is made to secure an empty pipe line in advance, the number of protective pipes connected to the wiring box increases, and both the initial required number of protective pipes and a spare pipe for future expansion are provided. This requires not only work to connect, but also more labor, and it is in a limited space in the wall, and the space where the protective tube can be connected is limited in both the depth and width directions. Measures for future expansion were also required.

  Therefore, in the present invention, in view of the above circumstances, a pair of pipes in which two flexible hollow tubes are connected to a protection tube for cable wiring are used to prepare for future cable expansion. An object of the present invention is to provide a pipe connection box capable of efficiently connecting and fixing such a pair pipe to the box and stably supporting and fixing it in the wall.

In order to achieve the above object, a pipe connection box according to the present invention comprises a rectangular box that is open on the front side and includes a rear wall part and four side wall parts and has a long front view in the left-right direction. , A pipe connection box provided with a connection hole in a side wall portion to which a flexible pipe for guiding a cable is connected, and the flexible pipe to be connected is identified in one pipe for identification with the other A pair of pipes that are joined together by connecting two flexible hollow tubes with a line. At the time of initial construction, cables and wirings are inserted in advance in one pipe, and the other pipe is used in the future. A call line is drawn as a spare pipe for the additional line . Then, a connection hole for connecting the flexible pipe, this Peapaipu in correspondence with the two circular holes drilled in a substantially Dharma shape in contact with each other are arranged in the depth direction, one by each plurality to the side wall portion of the upper and lower When the flexible pipe is not connected, it is closed by a lid member connected by a separating piece, and when the flexible pipe is inserted, the lid member can be pulled out and drilled as necessary. the flexible pipe is fitted interpolated in box inside the cable connection hole opened by cutting the pieces are capable Shirube引.

  According to this configuration, since the connection hole having a substantially dharma shape corresponding to the flexible pipe for guiding the cable is provided in the side wall portion, the cable in the flexible pipe can be obtained by connecting the flexible pipe to the connection hole. Can be guided inside the box. In addition, since this flexible pipe is a pair pipe formed by connecting two flexible hollow tubes, two pipes can be connected in one connection operation. It can be done efficiently.

In the above-described configuration, the upper and lower side wall portions are provided with female screw portions evenly arranged at two locations on the inner side so that they can be attached to the wall surface material, and the front surfaces of these female screw portions are along the edge of the front opening. In addition, detector aluminum paper is attached so that the position of the box in the wall can be grasped by the detector from the indoor side of the wall surface during construction . In addition, each of the left and right side wall portions is provided with a round hole or a substantially Dalma-shaped preliminary connection hole, and this preliminary connection hole is closed by a lid member connected by a cut piece, When the connection is necessary, the lid member may be pulled out to allow perforation.

  According to this, it is possible to connect the flexible pipe by drilling only the connection holes required for the connection of the flexible pipe among the plurality of connection holes provided in the side wall, and other unnecessary connections. The hole can be used with the lid member closed, and versatility is improved.

  Since the pipe connection box of the present invention configured as described above is configured to connect a pair of flexible pipes by connecting two flexible hollow tubes. In addition to simplifying the labor of pipe connection, the construction cost can be reduced, and the pipes can be arranged neatly in the wall to save space.

  The best mode for carrying out the pipe connection box according to the present invention will be described below with reference to the drawings.

  The pipe connection box according to the present invention can be suitably used, for example, for construction of an electrical / information wiring system in a building. FIG. 1 is an explanatory diagram showing a LAN wiring system in a house as an example of an electrical / information wiring system system in the building.

  As illustrated, in the LAN construction in the house, the network terminal box B of the information device is arranged on the wall surface of the living room A serving as a base, and LAN cables are connected to the living rooms A1 to A4 on the first floor and the second floor from here. Wired in a star shape. Usually, the LAN cable is accommodated and protected by flexible pipes C ... C. A pipe connection box (not shown) is installed on the back side of the terminal box B across the wall, and a plurality of flexible pipes C ... C are connected and held. Further, the terminal box B is provided with various functions such as a switching hub, and the server terminal and the terminals of the living rooms A1 to A4 are electrically connected via these devices.

  In each of the living rooms A1 to A4, an information outlet D for connecting a LAN terminal or a telephone terminal of an information terminal such as a personal computer is installed on the wall surface. On the back side of the information outlet D, a wiring box (not shown) is installed across a wall. The other ends of the flexible pipes C... C connected to the pipe connection box on the back side of the terminal box B are connected to the wiring boxes on the back side of the respective information outlets D, and cables for connecting each other are inserted. .

  2 is a front view showing a flexible pipe connected to the pipe connection box of the present invention, and FIG. 3 is a side view of the flexible pipe of FIG. 2 viewed from the axial direction.

  As shown in the drawing, the flexible pipe 2 connected to the pipe connection box 1 of the present invention is a pair pipe in which two flexible hollow tubes 21 are intimately connected by a bridge 22 to form a pair. Each flexible hollow tube 21 is a bellows tube made of a synthetic resin having relatively high rigidity.

  Such a flexible pipe 2 has a cable such as a LAN cable or telephone wiring inserted in advance in one of the pipes, and is taken up into the construction site in a wound state, and is connected to the terminal box B or the information outlet D. Connected and plumbed. Thereby, a cable can be easily wired now in a building.

  The other pipe is a spare pipe for future expansion lines such as optical fiber, and the pipe is drawn by a nominal line during the initial construction so that wiring can be easily performed as necessary. Is done. As a result, it is possible not only to secure a preliminary pipeline for future expansion in a limited space in the wall body, but also to perform two pipes simultaneously with one pipe work. It is intended to be able to reduce construction time and costs. Also, an identification line 23 is attached to one of these two pipe lines for identification with the other.

  FIG. 4 is a perspective view showing the pipe connection box of the present invention. The pipe connection box 1 of the present invention is composed of a synthetic resin box having an open front side. This pipe connection box 1 is housed in the wall of a building. As shown in the drawing, the pipe connection box 1 is a substantially rectangular box that is long in the left-right direction when viewed from the front, and includes four side walls 13 and a rear wall 12. Then, either one or both of the left and right side wall portions 13 of the pipe connection box 1 are attached to a structural material such as a column or a stud in the wall, or a base material. That is, the pipe connection box 1 of the illustrated form is formed in a size that can be accommodated between a structural material such as a pillar or a stud or a base material, and after being installed in a wall, an interior wall material such as a gypsum board Is attached to the front opening 11 side and covered with an interior wall surface material.

  The pair of side wall portions 13, 13 facing the pipe connection box 1 are provided with the same number of connection holes to which the flexible pipe 2 is connected. In the illustrated embodiment, as shown in the figure, nine connection holes 131 are provided in each of the opposing top surface side wall portion 13a and bottom surface side wall portion 13b.

  Each connection hole 131 has a substantially dharma shape with two circles corresponding to the outer shape of the flexible pipe 2, and circular holes are arranged in the depth direction of the side wall portions 13a and 13b. The connection hole 131 is formed so as to match the outer diameter of the groove bottom of the flexible pipe 2 that is a paired pipe, or to have a slightly smaller dimension, and the peripheral portion of the connection hole 131 is formed in the groove of the flexible pipe 2. Are configured to be prevented from coming off by engagement.

  Further, the connecting hole 131 is closed by a lid member 132 when the flexible pipe 2 is not connected. The unnecessary lid member 132 is removed when the flexible pipe 2 is inserted, and drilled as necessary. It is possible. As shown in the figure, in the connection hole 131 having such a configuration, six small separation pieces 133 are evenly arranged around the lid member 132 so as to block almost the entire connection hole 131, and are integrated with the side wall portions 13 a and 13 b. It is connected to.

  Then, the separation piece 133 provided in this way is cut, and the lid member 132 that closes each connection hole 131 is pushed out, so that the connection holes 131 at necessary places can be opened. ing. Since each connection hole 131 is provided with a lid member 132 and closed, the connection hole 131 that is not used can be blocked to prevent foreign matter from entering the inside of the box, and the strength of the box itself can be maintained. it can.

  In addition, a preliminary connection hole 134 is provided in the center of each of the left and right side wall portions 13. The preliminary connection hole 134 is also closed by a lid member 132 connected by a separating piece 133, and is configured to appropriately extract and perforate the lid member 132. For example, when the flexible pipe 2 is connected to all the nine upper and lower connection holes 131 and used, the spare connection hole 134 allows a power cable for the terminal box B of the network system to be inserted. Can be used for The illustrated preliminary connection hole 134 is a round hole, but may be formed in any shape such as a substantially dharma shape like the other connection holes 131.

  Further, the left and right side wall portions 13 are equally provided with fixing long holes 135 at two locations, upper and lower. The fixing long hole 135 is a laterally long hole, the fixing position can be adjusted in the depth direction, and it is used to fix the pipe connection box 1 to an appropriate position of the structural material or the base material.

  The upper and lower side wall portions 13a and 13b are equally provided with female screw portions 14 at two inner locations, and screws or the like are screwed to the female screw portions 14 so that the wall surface material is located from the front of the front opening portion 11. And terminal box B can be attached.

  A detector aluminum paper 15 is attached to the edge of the front opening 11 on the front surface of the female screw portion 14. At the time of construction, the position of the pipe connection box 1 stored in the wall body is used by the detector. It is used to grasp the interior wall material from the indoor side.

  Next, a usage pattern of the pipe connection box 1 having the above-described configuration will be described. 5 and 6 show an example of a state in which the pipe connection box 1 is housed in a wall, FIG. 5 is an explanatory view seen from the front, and FIG. 6 is a longitudinal section showing a state where the flexible pipe 2 is inserted. It is explanatory drawing of a direction.

  As illustrated, the left side wall 13 of the pipe connection box 1 is attached and supported and fixed to a column 31 in the wall of the building. An interior wall surface material 33 is disposed in front of the front opening 11 of the pipe connection box 1, and the pipe connection box 1 is placed between the wall surface material 32 and the interior wall surface material 33.

  At the time of electrical installation work, as shown in FIG. 5, the position of the front opening 11 of the pipe connection box 1 covered with the interior wall material 33 is grasped by the presence of the aluminum paper 15 using a magnetic detector, A wiring opening 331 is opened at the location, and the terminal box B is installed and fixed on the front surface of the pipe connection box 1 with the interior wall surface material 33 interposed therebetween.

  When the flexible pipe 2 is connected to the pipe connection box 1, as described above, the separation piece 133 of the connection hole 131 at a location necessary for connecting the flexible pipe 2 is cut and the lid member 132 is also connected. , And the cover member 132 of the connection hole 131 is removed to make a hole.

  Next, the flexible pipe 2 in which a LAN cable or the like has been inserted in advance through one pipe line is matched with the substantially dharma shape of the connection hole 131, the end portion is inserted into the connection hole 131, and the axial direction is pushed by an appropriate length. . At the same time, using the elasticity of the flexible pipe 2, the end of the flexible pipe 2 is fitted into the connection hole 131 by engaging the peripheral edge of the connection hole 131 with the groove of the flexible pipe 2. As shown in FIG. 6, the flexible pipe 2 is held in the pipe connection box 1. A cable (not shown) inserted through the flexible pipe 2 is guided into the pipe connection box 1 and can be connected to various terminals.

  As described above, since the peripheral portion of the connection hole 131 is engaged with the groove portion of the flexible pipe 2, the flexible pipe 2 is prevented from coming off without being rattled, and an axial force is applied to the flexible pipe 2 during construction work. Even if the end of the flexible pipe 2 is added, the end of the flexible pipe 2 is stably held without being detached from the connection hole 131 or being further pushed into the connection hole 131. Finally, the front lid member is fitted into the terminal box B to complete the electrical installation work.

  In addition, a large number of cables are gathered from various locations in the building to the pipe connection box 1, and even if they are added in the future, the flexible pipe 2 that secures two pipelines is connected to the connection hole 131 having a substantially dharma shape. As a result, they can be accommodated in an orderly manner, and the space required for connection between the pipe connection box 1 and the flexible pipe 2 can be minimized, and can be stored compactly in the wall.

  In the above embodiment, the cover member 132 is provided in the connection hole 131 and can be appropriately perforated. However, the cover member 132 may be provided without being provided with the cover member 132 at all times. Further, in the pipe connection box 1 according to the present invention, the arrangement, the number, and the like of the connection holes 131 to be formed are not limited to the above embodiment, and how many are provided at any position on the side wall portion 13. Also good.

  For example, the configuration of the pipe connection box 1 as shown in FIGS. 7 to 10 is also possible. 7 to 10 are (a) a front view and (b) a top view, respectively, showing another form of the pipe connection box according to the present invention. In each of these drawings, the configuration of the pipe connection box 1 is indicated by the same reference numerals for the same components as the pipe connection box 1.

  For example, as shown in FIG. 7, the pipe connection box 1 may have a configuration in which three connection holes 131 are provided in the upper and lower side wall portions 13, 13 of the pipe connection box 1 facing each other. Further, like each of the connection holes 131, an arrangement shape in which circular holes are arranged in the width direction of the upper and lower side wall portions 13 may be employed.

  Further, the pipe connection box 1 has a structure in which two connection holes 131 are provided in each of the upper and lower side wall portions 13 and 13 as shown in FIG. 8, and a connection hole as shown in FIGS. A configuration in which one 131 is provided on each of the upper and lower side wall portions 13 and 13 is also possible.

  Further, as exemplified in these, the arrangement of the female screw portion 14 can be variously configured. Even if the female screw portion 14 is equally provided at the three inner portions of the upper and lower side wall portions 13 and 13 as shown in FIG. As shown in 9, 10, only one location may be provided in the approximate center of the upper and lower side wall portions 13, 13. In such a form, it is preferable that the female screw portion 14 is formed to be relatively short in the depth direction and not to interfere with the flexible pipe 2 to be inserted.

  Further, as shown in FIG. 10, the connection hole 131 of the pipe connection box 1 may be configured such that the cover member 132 is not provided and the hole is always opened, and no perforation is required. The same applies to the preliminary connection hole 134 provided at the center of each of the left and right side wall parts 13, and the lid member 132 may not be provided.

  Any of the configurations of these pipe connection boxes 1 is appropriately selected according to the arrangement form, the number of connections, etc. of the flexible pipes 2 in the wall, and is necessary by using the pipe connection box 1 having the optimum form. The flexible pipe 2 is neatly accommodated in the minimum space, so that the working efficiency can be improved and the wall can be compactly accommodated.

  The pipe connection box according to the present invention can be suitably used to perform various types of wiring in the wall in the construction of an electrical / information wiring system in a building such as a house.

It is explanatory drawing which shows the LAN wiring system in a house. It is a front view which shows the flexible pipe connected to the box for pipe connection of this invention. It is the side view which looked at the flexible pipe of FIG. 2 from the axial direction. It is a perspective view of the box for pipe connection concerning the present invention. It is explanatory drawing which shows an example of the state which accommodated the pipe connection box which concerns on this invention in the wall body. It is explanatory drawing of the longitudinal cross-section direction which shows the state which inserted the flexible pipe in the pipe connection box of FIG. It is (a) front view and (b) top view which show the other form of the pipe connection box which concerns on this invention. It is (a) front view and (b) top view which show the other form of the box for pipe connection which concerns on this invention. It is (a) front view and (b) top view which show the other form of the box for pipe connection which concerns on this invention. It is a perspective view which shows the box for pipe connection of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pipe connection box 11 Front opening part 12 Rear wall part 13 Side wall part 131 Connection hole 132 Cover member 133 Cut piece 134 Preliminary connection hole 135 Long hole for fixation 14 Female thread part 15 Aluminum paper for detectors 2 Flexible pipe

Claims (2)

Opened on the front side and provided with a rear wall part and four side wall parts. The side wall part has a connecting hole to which a flexible pipe for guiding the cable is connected. A pipe connection box prepared for
Flexible pipes to be connected is a Peapaipu the two flexible hollow tube identification line is attached is a set are coupled to identify the other as the one pipe, at the time of initial installation Cables and wirings are inserted in advance in one of the pipes, and the other pipe is led by a call line as a spare pipe for future expansion lines,
The connection hole, two circular holes in correspondence with the Peapaipu is bored in a substantially Dharma shape in contact with each other are arranged in the depth direction, respectively provided by a plurality in the side wall portions of the upper and lower flexible pipe unconnected In the state, it is closed by a lid member connected by a separating piece, and when the flexible pipe is inserted, the lid member can be pulled out and drilled as necessary, and the connection established by cutting the separating piece The flexible pipe is inserted into the hole, and the cable can be guided inside the box .
On each of the upper and lower side wall portions, female screw portions are evenly arranged at two locations on the inner side so that they can be attached to the wall surface material, and the aluminum for the detector is formed on the front surface of these female screw portions along the edge of the front opening. A pipe connection box characterized in that paper is attached so that the position of the box in the wall can be grasped from the indoor side of the wall material by a detector at the time of construction . In the pipe connection box according to claim 1,
Each of the left and right side walls is provided with a round hole or a substantially Dalma-shaped preliminary connection hole, and this preliminary connection hole is closed by a lid member connected by a separating piece, and a flexible pipe needs to be connected. A pipe connection box characterized in that the lid member is sometimes pulled out and can be perforated .

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