JP5947997B2 - Wiring / piping material or connection part - Google Patents

Description

  The present invention includes a connection port that is provided on a wall and into which a wiring member or a piping member (hereinafter referred to as “wiring / piping material”) or a connector attached to an end of the wiring / piping material is inserted or connected. Wiring / piping materials or connection parts of the connecting devices.

  When wiring wiring materials such as power cables and communication cables, and when piping piping materials such as cable protection pipes and intake / exhaust ducts that are inserted and protected by wiring materials, various wiring equipment and piping equipment (Referred to as “wiring / piping equipment”). For example, a switch box that houses a switch, an outlet box that houses an electrical outlet, a temporary power box that houses a temporary power supply, an electrical equipment storage box that houses electrical equipment such as a breaker, and a piping material that is branched, straight, or perpendicular For example, a pipe connection box for connection. Further, the wiring / pipeware is not limited to a box shape, but may be a plate shape. For example, an electricity meter mounting panel for attaching an electricity meter. In such wiring and piping devices, the side and bottom surfaces of the box-shaped body, the bottom surface of the plate-shaped body, and the like, ribs that are erected at appropriate sites for reinforcement and division, A wall portion constituting a frame and the like, and a connection port provided on the wall portion, through which a wiring / piping material is inserted or connected, or a connection tool attached to an end of the wiring / piping material is inserted or connected. There is something.

  Various wiring and piping devices having such a wall portion and a connection port have been devised. For example, as disclosed in Patent Document 1, a plurality of knockout portions are provided on the wall portion. In addition, there is a wiring / piping device in which a connection port can be formed in a wall portion as needed by punching a desired knockout portion with a tool such as a hammer or a screwdriver. Here, the wiring and piping apparatus disclosed in Patent Document 1 has a small knockout portion provided inside a large knockout portion, and a large connection port or a small connection port is formed as necessary. It can also be selected.

  In addition, as disclosed in Patent Document 2, a plurality of connection ports are provided in advance in the wall portion, and a connection port that is not used can be closed by attaching a closing tool to a desired connection port. There are wiring and piping equipment.

  Further, as disclosed in Patent Document 3, a plurality of wall portions themselves are knockout portions, and a desired wall portion is punched out and inserted into slits provided on both sides of the punched wall portion. There is a wiring / pipe fitting that can form a connection port as needed by slidingly mounting a closing plate provided with a hole or notch corresponding to the shape of the wiring / pipe material.

  Further, as disclosed in Patent Document 4, a slit is formed above the wall portion, and a side plate is slid into the slit so that a semicircular cut provided in the central portion of the wall portion is formed. There is a wiring / pipe fitting in which a connection port through which a wiring / pipe material is inserted is formed by a notch and a semicircular notch provided at a lower portion of a side plate.

JP 2002-176720 A JP 2006-296017 A Japanese Patent Laid-Open No. 9-247821 Japanese Utility Model Publication No. 63-193886

  In a wiring / pipe fixture that forms a necessary connection port by punching out a knockout part as disclosed in Patent Document 1, if a knockout part at a different location is accidentally punched out, it becomes useless. . In addition, it is possible to select whether to form a large connection port or a small connection port by selecting a large or small knockout part to be punched, but after forming a large connection port, It cannot be returned and the size of the connection port cannot be changed freely.

  On the other hand, since the wiring / pipe apparatus as disclosed in Patent Document 2 can close unused connection ports with a closing tool, “a mistakenly knocking out a different knockout portion makes it unusable”. Does not cause a problem. However, in the thing disclosed in Patent Document 2, since the obturator is screwed into the connection port, the attaching / detaching operation of the obturator becomes complicated. In particular, when wiring and piping equipment is attached to the wall and floor of a building, the work space around the wiring and piping equipment is limited, so it is extremely difficult to rotate and remove the obturator. There is a case. Further, the device disclosed in Patent Document 2 does not take into consideration that the size of the connection port to be used can be selected.

  On the other hand, in the wiring and piping apparatus as disclosed in Patent Document 3 and Permitted Document 4, all or part of the connection port is constituted by a member separate from the wall portion, and is provided on the wall portion. It is difficult to ensure the same strength as the connection port, and the connection port is likely to be fragile.

  The present invention has been made in view of the above circumstances, and the connection port for inserting or connecting the wiring / piping material or the connection tool has sufficient strength, and the connection port is opened or closed by a simple operation. It is an object of the present invention to provide a wiring / piping material that can be connected or a connection portion of the connection tool.

  The connection part of the wiring / piping material or its connector according to claim 1 is formed by a wall and a hole penetrating the wall part and having the entire periphery closed by the wall part. A connection port through which a connection tool attached to the portion is inserted or connected, a closing plate that closes the connection port, and a holding portion that holds the closing plate, and the closing plate is provided on a wall surface of the wall portion. Along the holding section, the holder is detachably attached and held.

  The invention according to claim 3 is formed by a wall portion and a hole penetrating the wall portion and having the entire periphery closed by the wall portion, and a wiring / pipe material or a connection tool attached to the end portion thereof is inserted or A connection port to be connected and a connection tool attached to the end of the wiring / pipe material having a smaller diameter than the one wiring / pipe material inside the connection port by partially closing the connection port. A small-diameter connection port forming plate that forms a small-diameter connection port to be inserted or connected, and a holding unit that holds the small-diameter connection port-forming plate, the small-diameter connection port forming plate along the wall surface of the wall portion The holder is detachably attached and held.

  The invention according to claim 2 and claim 4 is provided in the thick part of the wall part, and is provided with an opening so as to face the end part of the wall part. The holding portion is formed by the communicating slit, and the closing plate and the small-diameter connection port forming plate are detachably inserted along the wall surface of the wall portion from the opening of the slit to close the connection port.

In the inventions according to claims 5 and 6, the connection port and the small-diameter connection port are substantially circular, respectively.
In the invention according to claim 7, the small-diameter connection port forming plate is formed by removing a part of the closing plate capable of closing the entire connection port by knockout.
In the inventions according to claims 8 and 9, the connection port and the small-diameter connection port are each formed to have an inner diameter slightly smaller than the outer diameter of the piping material.

  According to the first aspect of the present invention, since the connection port is formed by a hole penetrating the wall portion, and the entire periphery of the hole is closed by the wall portion, the connection port has sufficient strength. Further, since the closing plate is detachably attached by moving in parallel along the wall surface of the wall portion, the connection port can be easily opened and closed freely.

  The invention of claim 3 includes a connection port through which a large-diameter wiring / piping material or connector is inserted or connected by simply attaching / detaching a small-diameter connecting port forming plate to / from the connecting port, and a small-diameter wiring / piping material or connector. It is possible to easily and arbitrarily switch and form a small-diameter connection port through which is inserted or connected. In addition, both large-diameter piping materials and small-diameter piping materials can be connected to the connection port and the small-diameter connection port without gaps.

  In the inventions according to claims 2 and 4, since the slit is provided in the thickness portion of the wall portion, the entire or partial opening / closing of the connection port can be performed only by inserting / removing the closing plate and the small diameter connection port forming plate into / from the slit. It can be done with a simple operation. Further, since the blocking plate and the small diameter connection port forming plate are inserted into the slits provided along the wall surface of the wall portion, they can be stably attached to the force applied in the insertion / removal direction of the wiring / pipe material.

In the inventions according to claims 5 and 6, since the connection port and the small-diameter connection port are substantially circular, it is possible to accurately connect the wiring / pipe material and the connector having a generally circular cross section. In addition, it is easy to eliminate gaps between the connection port and the small-diameter connection port and the wiring / pipe material or connection tool.
The invention of claim 7 can easily form a small-diameter connection port forming plate by an operation of punching out and removing the blocking plate for closing the entire connection port, if necessary, and reducing the number of parts. It can be reduced and parts management becomes easy.
In the inventions according to claims 8 and 9, since the connection port and the small diameter connection port are formed to have an inner diameter slightly smaller than the outer diameter of the piping material, the piping material is forcibly formed into the connection port and the small diameter connection port. By being inserted, it is held by elastic radial tension. Therefore, it can be connected to the connection port and the small-diameter connection port by an extremely simple operation of inserting the piping material.

It is a perspective view which shows an example of the wiring and piping instrument which concerns on this invention. It is an enlarged view of the connection part of the wiring and piping apparatus shown in FIG. 1, (a) is the perspective view seen from upper direction, (b) is the perspective view seen from the downward direction. It is a longitudinal cross-sectional view of a slit part. It is a figure which shows a slide mounting member, (a) is a front view, (b) is a rear view. (A) And (b) is explanatory drawing which shows the example of a fore edge connection port, respectively. It is principal part sectional drawing which shows the state which connected the piping material to the connection port of FIG. It is a perspective view which shows another example of wiring and piping instrument. It is a perspective view which shows another example of the connection part of FIG. It is a perspective view which shows another example of the connection tool of FIG. It is a perspective view which shows another example of the connection tool of FIG.

  Embodiments of the connection part of the wiring / pipe material or the connection tool according to the present invention will be exemplified below.

  In FIG.1 and FIG.2, the watt-hour installation board 10 is shown as an example of wiring and piping equipment. This watt-hour meter mounting panel 10 is for mounting a watt-hour meter on a wall surface of a building, and a base portion 11 formed in a plate shape as a whole and an outer edge of the base portion 11. The frame portion 12 is provided upright. In the watt-hour meter mounting panel 10, a box-shaped cover (not shown) can be attached to the frame portion 12, and the watt-hour meter is protected by attaching the cover after the watt-hour meter is attached. can do. Further, the base part 11 and the frame part 12 constitute a wall part 13, and the wall part 13 constituting the lower frame part 12 penetrates the wall part 13 and the entire periphery is the wall part 13. A connection port 14 composed of a closed circular hole is provided. The connection port 14 constitutes a later-described large-diameter connection port 15.

  The large-diameter connection port 15 allows a wiring member 30 such as a cable, a piping member 31 such as a cable protection pipe, and a connecting member attached to the end of the wiring member 30 and the piping member 31 to be inserted into the wall portion 13. It is for making it connect. The large-diameter connection port 15 connects a pipe material 31 having a diameter larger than that of a small-diameter pipe material 31 connected to a small-diameter connection port 23 described later. It corresponds to the piping material of “Piping material”.

  The large-diameter connection port 15 is provided in a thick portion of the wall portion 13 that is partially thick, and a slit 16 is provided around the large-diameter connection port 15. In the slit 16, a closing plate 20 described later is detachably inserted into the interior along the wall surface of the wall portion 13 from the opening 16 a as necessary. The slit 16 is configured so that the closing plate 20 can be inserted into and extracted from the front by an operation from the front side of the watt-hour mounting board 10. The closing plate 20 can open and close the large-diameter connection port 15 by being inserted into and removed from the slit 16. In addition, these wall part 13, the connection port 14, the slit 16, and the obstruction | occlusion board 20 comprise the wiring / piping material of a claim, or the "connection part" of the connector. Further, the slit 16 constitutes a “holding portion” in the claims.

  The large-diameter connection port 15 includes a boss portion 17 protruding from the wall portion 13, and a ring plate-like flange portion 18 extending inward of the large-diameter connection port 15 is provided at an end portion of the boss portion 17. Is formed. The large diameter connection port 15 is formed to have an inner diameter slightly smaller than the outer shape of the piping material 31. The flange portion 18 functions as a stopper that restricts further insertion of the piping material 31 when the piping material 31 such as a cable protection pipe is inserted into the large-diameter connection port 15.

  Next, details of the slit 16 will be described. The slit 16 is provided with an opening 16a outwardly facing the upper end portion of the wall portion 13, and a connection port in the depth direction along the wall surface of the wall portion 13 from the opening 16a, that is, in the bottom direction of the wattmeter mounting panel 10. 14 is provided in the thickness portion of the wall portion 13 so as to communicate with the wall portion 14. Further, the slit 16 is formed in a stepped shape having a wide upper portion and a narrow lower portion. Thus, by making the slit 16 into a stepped shape, it is possible to suppress the strength of the wall portion 13 from being greatly reduced by the slit 16 provided in the wall portion 13. In addition, the slit 16 is not provided in the lowermost part of the large diameter connection port 15, and both surfaces of the slit 16 are connected at the lowermost part, so that the strength at the lowermost part of the large diameter connection port 15 is ensured. Has been. Further, as shown in FIG. 3, the slit 16 is set so that the upper part of the closing plate 20 inserted into the slit 16 protrudes from the upper end of the wall part 13, and the upper part of the closing plate 20 is picked up by a finger and extracted. I can do it.

  Next, the details of the closing plate 20 will be described with reference to FIG. The closing plate 20 is formed in a flat plate shape as a whole, and exhibits an outer shape corresponding to the slit 16. A thin knockout groove 21 is provided on one surface of the closing plate 20, and a portion surrounded by the knockout groove 21 is a knockout portion 22 that can be removed by punching. When the closing plate 20 is attached to the slit 16 after removing the knockout portion 22, a small diameter connection port 23 smaller than the large diameter connection port 15 is formed by the knockout portion 22. The blocking plate 20 from which the knockout portion 22 has been removed constitutes a small diameter connection port forming plate 24.

  In this embodiment, the knockout groove 21 is U-shaped, and when the knockout portion 22 is removed, a U-shaped notch is formed in the closing plate 20. The closing plate 20 formed with the U-shaped notch constitutes a small-diameter connection port forming plate 24, and the small-diameter connection port forming plate 24 is inserted along the wall surface of the wall portion 13 from the opening 16 a and inserted into the slit 16. When mounted, the substantially circular shape smaller than the large-diameter connection port 15 is formed by the U-shaped semicircular arc portion of the knockout portion 22 and the semicircular arc portion below the large-diameter connection port 15 as shown in FIG. The small-diameter connection port 23 is formed. The small-diameter connection port 23 is used to insert or connect the pipe member 31 having a smaller diameter than the pipe member 31 connected to the wiring member 30 or the large-diameter connection port 15 or a connection tool attached to these ends into the wall portion 13. belongs to. The small diameter connection port 23 is formed to have an inner diameter slightly smaller than the outer diameter of the small diameter piping material 31. The small-diameter connection port 23 is not limited to this, and as shown in FIG. 5B, the knockout groove 21 has a circular shape with a smaller diameter than the large-diameter connection port 15, and the closing plate 20 is formed in the slit 16. By removing the knock-out portion 22 surrounded by the knock-out groove 21 so as to be concentric with the large-diameter connection port 15 in the mounted state, the small-diameter connection port 23 is concentric with the circular large-diameter connection port 15. May be formed.

  As shown in FIG. 4, the closing plate 20 has a knob 25 which can be picked with a finger at the upper part protruding from the upper end of the wall 13 when the slit 16 is attached. The portion 25 is provided with a concavo-convex portion 26 so that the finger is difficult to slip when the closing plate 20 is picked up from the slit 16 with the finger. Further, as shown in FIG. 4A, the closing plate 20 is provided with a linear convex portion 27 elongated in the insertion / removal direction of the closing plate 20 on the upper surface of one surface of the closing plate 20. The thickness of the closing plate 20 including the convex portion 27 is slightly larger (about 0.05 to 0.2 mm) than the width of the slit 16, and when the closing plate 20 is attached to the slit 16, the slit 16 When the convex portion 27 is pressed by the inner surface, the backlash of the closing plate 20 is suppressed. As shown in FIG. 4B, a projection 28 having a circular shape and a hemispherical surface is provided on the other surface of the closing plate 20. The thickness of the closing plate 20 including the projection 28 is slightly larger (about 0.1 to 0.5 mm) than the width of the slit 16. When the closing plate 20 is attached to the slit 16, the projection 28 is The large diameter connection port 15 is locked to the inner peripheral surface. The engagement between the projection 28 and the large-diameter connection port 15 prevents the closing plate 20 from being inadvertently detached from the slit 16.

  Next, the wiring member 30 such as a cable is inserted into the large-diameter connection port 15 constituting the connection port 14 of the electricity meter mounting panel 10 of the present embodiment thus configured, or the cable or the like is put inside. A method of connecting the piping material 31 such as a protective tube to be housed and protected will be described.

  First, when connecting the piping material 31 to the large-diameter connection port 15, as shown in FIG. 6, the distal end portion of the piping material 31 is held and this distal end is connected to the flange portion 18 at the back of the large-diameter connection port 15. All that is required is to insert it into the large-diameter connection port 15 until it hits. Here, as the piping material 31, a straight tube having a smooth outer surface or a corrugated tube having an annular unevenness formed on the outer surface is used. As described above, since the inner diameter of the large-diameter connection port 15 is formed to be slightly smaller than the outer diameter of the piping material 31, if the piping material 31 is forced into the large-diameter connection port 15, the piping material 31 is held and connected with its outer surface being elastically pressed against the inner surface of the large-diameter connection port 15. Therefore, the piping material 31 can be connected to the large-diameter connection port 15 very easily. In addition, after connecting the piping material 31 to the large-diameter connection port 15, the wiring material 30 can be inserted into the piping material 31 and pulled out into the watt hour meter mounting panel 10. By the way, a piping material 31 having an outer diameter equal to or smaller than the inner diameter can be connected to the large-diameter connection port 15, which is connected using a connecting tool or the like as will be described later.

  Next, in order to insert the wiring member 30 such as a cable into the large diameter connection port 15, although not shown, the large diameter connection port 15 is not shown in FIGS. 1 and 2, and the boss portion 17 is formed. For example, one of a pair of opposed ribs of a rubber bushing is forcibly pushed into the large-diameter connection port 15 to change the large-diameter connection port 15. After the wall portion 13 is sandwiched and attached between the pair of flanges, the tip of the wiring member 30 is passed through the radial notch provided in the center of the bushing to enter the wattmeter mounting panel 10. It only has to be inserted.

  Further, in order to connect the piping member 31 such as a large-diameter corrugated pipe to the large-diameter connection port 15, although not shown, the large-diameter connection port 15 is similarly not shown in FIGS. 1 and 2. For example, after changing to the planar large-diameter connection port 15 in which the boss portion 17 is not formed, for example, after connecting the piping material 31 to one end portion of the connector main body which is a connector, the other end portion of the main body is made large. The flange portion 18 of the large-diameter connection port 15 may be clamped by being inserted into the diameter connection port 15 and tightening the lock nut from the opposite side of the wall portion 13 to the male screw portion formed at the other end of the main body of the connector. .

  On the other hand, in order to connect the piping material 31 having a diameter smaller than that of the piping material 31 which is “one wiring / piping material” to the connection port 14, although not shown, in the slit 16 of the large-diameter connection port 15 constituting the connection port 14. If the small diameter connection port forming plate 24 is inserted along the wall surface of the wall portion 13 through the opening 16a, the small diameter connection port 23 is formed in the connection port 14, and thereafter the large diameter connection port 15 has a large diameter. What is necessary is just to connect the small diameter piping material 31 in the same way as the case where the piping material 31 is connected. In addition, when the piping material 31 is a corrugated tube, the peripheral edge of the U-shaped semicircular arc portion of the small diameter connection port forming plate 24 is slightly fitted into the trough portion of the outer surface unevenness of the piping material 31 and locked, The outer surface of the peak portion of the piping material 31 is pressed against the inner peripheral surface of the large-diameter connection port 15 and the peripheral edge of the semicircular arc portion of the small-diameter connection port forming plate 24. Here, the connection procedure is reversed and the piping material 31 is first inserted into the large-diameter connection port 15, and then the small-diameter connection port forming plate 24 is inserted into the slit 16. The letter-shaped arc portion may be pressed and connected to the outer surface of the piping material 31. This case also corresponds to “insertion” in the claims. In addition, when connecting the connector attached to the end part of the small diameter piping material 31 to the small diameter connection port 23 or inserting the wiring member 30 into the small diameter connection port 23, the large diameter connection port 15 is connected or inserted. What is necessary is just like the case.

  Then, when the wiring member 30 is not inserted into the connection port 14 or the piping material 31 or the connection tool is not connected, the closing plate 20 may be inserted into the slit 16 to close the entire connection port 14. Thereby, it can prevent that a foreign material penetrate | invades from the outside through the connection port 14, and can protect the inside of a wiring and piping instrument.

Next, the operation of the wiring / pipe material of the present embodiment configured as described above or the connecting portion of the connector will be described.
The connection port 14 provided in the wall portion 13 is formed by a hole penetrating the wall portion 13 and has a sufficient strength because the entire periphery of the hole is closed by the wall portion 13. Further, since the closing plate 20 moves in parallel along the wall surface of the wall portion 13 and is detachably attached, the connection port 14 can be easily operated by simply inserting and removing the closing plate 20 into and from the slit 16. Can be freely opened and closed regardless of the number of times. Furthermore, since the connection port 14 is formed in the wall portion 13 in advance and is not formed by knockout punching, no burr is generated at the periphery, and the finishing operation is not necessary.

  In addition, if the small-diameter connection port forming plate 24 is inserted into the slit 16, the small-diameter connection port 23 can be formed as the small connection port 14, while the small-mouth connection port forming plate 24 is extracted from the slit 16. 14 can be used as the large-diameter connection port 15, the size of the connection port 14 to be used can be changed by an extremely simple operation of inserting / removing the small-diameter connection port forming plate 24 with respect to the slit 16.

  Furthermore, since the large-diameter connection port 15 is formed in the wall portion 13 in advance, the large-diameter connection port 15 does not cause troublesome formation work and problems due to burrs, and sufficient strength is ensured. On the other hand, the small diameter connection port 23 is formed by the small diameter connection port forming plate 24 or by the small diameter connection port forming plate 24 and the large diameter connection port 15. Since it is inserted into the slit 16 formed along the wall surface of the portion 13, it does not move in the direction orthogonal to the wall surface of the wall portion 13, and the wiring / piping material to be inserted or connected And can be assembled to the wall portion 13 in a stable and stable state against the axial force of the connector.

  Also, if the outer diameter of the wiring / piping material or connector to be inserted or connected is small, it is possible to select and use the small-diameter connection port 23 instead of the large-diameter connection port 15. The gap around the tool can be eliminated or reduced.

  In addition, the large-diameter connection port 15 and the small-diameter connection port 23 are substantially circular. Here, it is general that the wiring / pipe material and the connection tool have a circular cross section. Therefore, by using the substantially circular large-diameter connection port 15 and the small-diameter connection port 23 to insert or connect the wiring / piping material and the connection tool, the clearance around the wiring / pipe material and the connection tool can be eliminated more accurately. It can be made smaller. In addition, by making the large diameter connection port 15 and the small diameter connection port 23 substantially circular, it is possible to accurately connect the wiring / pipe material and the connection tool to the large diameter connection port 15 and the small diameter connection port 23.

  The small-diameter connection port forming plate 24 formed by punching and removing the knockout portion 22 functions as a closing plate that partially closes the connection port 14. Therefore, opening the whole connection port 14 or closing a gap between a part of the connection port 14, that is, the inner peripheral surface of the connection port 14 and the outer surface of the small-diameter piping material 31, is connected to the slit 16. This can be realized by an extremely simple operation of inserting / removing the mouth forming plate 24.

  In the case of forming the small diameter connection port 23, since the knockout portion 22 of the small diameter connection port forming plate 24 is punched, it is inevitable that a burr is generated in the punched knockout portion 22, and this burr is removed. You may have to. Here, it is difficult to remove burrs from the small-diameter connection port forming plate 24 if the wiring / piping equipment is large or if the wiring / piping equipment is already attached to the wall or floor of the building. However, when removing burrs from the small diameter connection port forming plate 24, it is possible to remove the small diameter connection port forming plate 24 from the slit 16 and perform the operation at hand. Therefore, the work of removing burrs generated on the small diameter connection port forming plate 24 can be easily performed.

  By the way, the wiring / piping equipment to which the present invention can be applied is not limited to the plate-like watt-hour meter mounting panel 10 described above, and includes, for example, a bottom surface portion 41 and a side surface portion 42 as shown in FIG. It can also be set as the wiring box 40 of a switch or an electrical outlet by which 41 and the side part 42 became the wall part 13. FIG. In this wiring box 40, the wall portion 13 constituting the side surface portion 42 is partially thick, and the connection port 14 is provided in this thick portion. The wiring box 40 is provided with a slit 16 in the wall portion 13 of the connection port 14 so that the closing plate 20 or the small diameter connection port forming plate 24 can be detachably inserted into the slit 16. It has become.

  Further, the connection port 14 and the slit 16 are not limited to being provided in the thick portion of the wall portion 13 that is partially thick, but as shown in FIG. 14 may be formed, and the slit 16 may be provided inside the wall portion 13 where the connection port 14 is formed.

  Furthermore, as shown in FIG. 9, a connection port 14 is provided in the thin portion of the wall portion 13, and a pair of L-shaped plate-like locking projections 43, 43 are opposed to the wall portions 13 on both the left and right sides of the connection port 14. The closed plate 20 or the small-diameter connection port forming plate 24 may be inserted and attached between the pair of locking projections 43 and 43 and the wall portion 13.

  In addition, as shown in FIG. 10, a pair of trapezoidal locking recesses 45, 45 are formed on the wall back surface around the connection port 14 provided in the wall portion 13 of the wiring box 40, and the closing plate 20 or the small diameter connection is formed. A pair of trapezoidal locking projections 29, 29 that can be locked with the locking recesses 45, 45 are formed on one surface of the mouth forming plate 24, and the locking projections 29, 29 are formed from above the wiring box 40. The closing plate 20 or the small-diameter connection port forming plate 24 may be attached by engaging with the locking recesses 45 of the wall portion 13. In addition, the latching protrusion 43 of FIG. 9 and the latching recessed part 45 of FIG. 10 are also equivalent to the "holding | maintenance part" of a claim.

  The holding portion is attached and detached along the wall surface without moving the closing plate 20 and the small diameter connection port forming plate 24 such as the slit 16, the locking protrusion 43, and the locking recess 45 in a direction perpendicular to the wall surface of the wall portion 13. Various forms that are freely attached and held may be employed.

  Further, in the wiring box 40 shown in FIGS. 7 to 10, the knockout portion 44 is provided on the bottom surface portion 41 constituting the wall portion 13, and the knockout portion 44 of the bottom surface portion 41 is removed as necessary. The connection port 14 can also be formed in the bottom surface portion 41. Here, with respect to the connection port 14 of the bottom surface portion 41, the slit 16 and the locking projection 43 are provided in the peripheral wall portion 13, and the connection port 14 is connected by inserting / removing the closing plate 20 or the small-diameter connection port plate 24. You may make it open or close. 9 and 10 are formed on the inner surface side of the wall portion 13, this does not preclude formation on the outer surface side of the wall portion 13.

  Further, for example, in the case of the wiring box 40, the holding portion of the above embodiment is provided on a wall surface such as the side surface portion 42 provided with the connection port 14, but is not limited thereto, and the connection port 14 is not limited thereto. It may be provided on a wall surface different from the wall surface provided with, for example, the bottom surface portion 41. In this case, the holding portion can be formed by, for example, forming a groove or the like into which the insertion tip portion of the closing plate 20 or the small diameter connection port forming plate 24 is fitted and received in the bottom surface portion 41 of the wiring box 40.

  And although the small diameter connection port formation board 24 of the said embodiment has shown what is formed by punching out the knockout part 22 of the obstruction board 20, it is not restricted to this, From the beginning, it is U-shaped half It may be a dedicated one in which an arc portion is formed and a small diameter connection port 23 is formed.

  Moreover, although the large diameter connection port 15 which is the connection port 14 of the said embodiment is formed in the wall part 13 previously, it is not restricted to this, You may form by knockout punching. .

  Furthermore, in the above-described embodiment, the closing plate 20 and the small diameter connection port forming plate 24 are inserted into the holding portion from the opening side of the wiring / pipe fixture such as the wiring box 40. -An insertion opening that penetrates the bottom surface may be provided on the bottom surface side of the piping device, and the closing plate 20 or the like may be inserted therefrom. Depending on the installation location of the wiring / piping equipment, it may be more convenient that the insertion opening is constrained on the bottom surface side or provided on the bottom surface side. In many cases, the bottom surface is a ground contact surface. In this case, the presence of the ground contact surface does not naturally cause the closing plate 20 or the like to be removed from the insertion opening.

In addition, in the said embodiment, although the electric energy diameter mounting plate 10 and the wiring box 40 are illustrated as a wiring and piping instrument, this invention is other than temporary power supply boxes, breakers, etc. which accommodate temporary power supplies. The present invention can be similarly applied to an electrical equipment housing box that houses electrical equipment.
In addition, ducts and the like can also be mentioned as those connected to the connection port 14.

10 Electricity meter mounting panel (wiring / piping equipment) 22, 44 Knockout part 13 Wall part 23 Small diameter connection port 14 Connection port 24 Small diameter connection port forming plate 15 Large diameter connection port 30 Wiring material 16 Slit (holding part) 31 Piping material
18 Flange 40 Wiring box (wiring and piping equipment)
20 Blocking plate 43 Locking protrusion (holding part)
21 Knockout groove 45 Locking recess (holding part)

Claims (9)

The wall,
A connection port that penetrates the wall portion and is formed by a hole whose entire periphery is closed by the wall portion, and through which a wiring / pipe material or a connection tool attached to the end portion is inserted or connected;
A closing plate for closing the connection port;
A holding part for holding the closing plate,
The wiring / piping material or a connection portion of the connection tool, wherein the closing plate is detachably attached to and held by the holding portion along the wall surface of the wall portion. The holding portion is formed by a slit provided in the thick portion of the wall portion so that the opening faces the end portion of the wall portion and communicates with the connection port from the opening along the wall surface of the wall portion. And
2. The wiring / pipe material or the connection tool according to claim 1, wherein the closing plate is detachably inserted from the opening of the slit along the wall surface of the wall portion to close the connection port. Connection part. The wall,
A connection port that penetrates the wall portion and is formed by a hole whose entire periphery is closed by the wall portion, and through which a wiring / pipe material or a connection tool attached to the end portion is inserted or connected;
A small-diameter connection in which a wire / pipe material having a smaller diameter than the one wiring / pipe material or a connector attached to the end thereof is inserted or connected inside the connection port by partially closing the connection port. A small-diameter connection port forming plate that forms a port;
A holding portion for holding the small diameter connection port forming plate,
The connection portion of the wiring / pipe material or its connection tool, wherein the small diameter connection port forming plate is detachably attached to and held by the holding portion along the wall surface of the wall portion. The holding portion is formed by a slit provided in the thick portion of the wall portion so that the opening faces the end portion of the wall portion and communicates with the connection port from the opening along the wall surface of the wall portion. And
4. The wiring / pipe according to claim 3, wherein the small-diameter connection port forming plate is detachably inserted from the opening of the slit along the wall surface of the wall portion to partially close the connection port. Connection part of the material or its connection.   The said connection port is substantially circular shape, The connection part of the wiring and piping material in any one of Claim 1 thru | or 3, or its connection tool.   The said small diameter connection port is substantially circular shape, The connection part of the wiring and piping material of Claim 3 or Claim 4, or its connector.   The said small diameter connection port formation board is formed by removing a part of obstruction | occlusion board which can obstruct | occlude the whole of the said connection port by knockout, The Claim 3, Claim 4, and Claim 6 characterized by the above-mentioned. A connection part of the wiring / piping material or the connection tool according to any one of the above.   6. The wiring / piping material according to claim 1, wherein the connection port is formed to have an inner diameter slightly smaller than an outer diameter of the piping material. .   The said small diameter connection port is formed in the internal diameter slightly smaller than the outer diameter of the piping material of a diameter smaller than said one wiring and piping material, Claim 4, Claim 6, and Claim 6 characterized by the above-mentioned. The connection part of the wiring and piping material in any one of 7, or its connector.

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