Base pole, separator, and wire accommodation equipment

Abstract

To provide a technique enabling easily erecting a pole without damaging a function of a drain hole.SOLUTION: Base poles 26 are erected inside a cable trough 1. The base pole 26 comprises: a pole body 30; and a base member 32 provided at one end 30a on one side in an axial direction of the pole body 30. The base member 32 comprises: a fitting part 33 fitting along an inner peripheral face 22a of a drain hole 22 without suppressing circulation of moisture in the drain hole 22 of a bottom wall 8 of the cable trough 1.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a base pole, a separator, and a wire storage facility using the base pole, which are used in a wire storage facility. [Background technology]

[0002] BACKGROUND ART In recent years, cables such as power lines and communication lines are sometimes buried underground using electric wire accommodation facilities such as cable troughs (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-42547 Summary of the Invention [Problem to be solved by the invention]

[0004] The electric wire housing facility may house a plurality of cables with different uses and types, such as power cables and communication cables. Therefore, in order to accommodate a plurality of cables collectively according to their use or type, partitions (separators) are sometimes provided within the electric wire accommodation facility.

[0005] Furthermore, when the top cover of the electric wire housing facility is removed to perform work, a protector may be provided above the multiple cables to protect the multiple cables housed therein. In order to provide such separators and protectors in the electric wire housing facility, it is conceivable to provide a pillar (pole) on the bottom wall of the electric wire housing facility, which serves as a base for providing the separators and protectors.

[0006] To erect the pole, for example, it is conceivable to fix the pole to the bottom wall of the electric wire housing facility using a bracket or anchor, or to newly provide a fixing hole for fixing the pole. However, it can be difficult to attach brackets or create new fixing holes when cables are housed inside the equipment.

[0007] Here, a drain hole may be provided in the bottom wall of the electric wire housing facility. By utilizing this drainage hole, the pole can be easily erected even when the cable is housed inside the facility. However, if the drainage holes are closed in order to erect the poles, there is a risk that drainage through the drainage holes will be hindered.

[0008] The present invention has been made in consideration of the above circumstances, and aims to provide a technique that allows a pole to be easily erected without impairing the function of the drainage hole. [Means for solving the problem]

[0009] (1) A base pole according to an embodiment of the present invention is installed in a wire accommodation facility. The base pole includes a pole body and a base member provided at one end of the pole body in one axial direction. The base member includes a fitting portion that fits into the inner circumferential surface of the drainage hole in the bottom wall of the wire accommodation facility without impeding the flow of water through the drainage hole.

[0010] According to the above-described configuration, by fitting the base member into the drain hole in the bottom wall of the electric wire receiving facility, the pole body can be easily erected from the bottom wall. Here, the base member has a fitting portion that fits into the inner surface of the drain hole without obstructing the flow of moisture through the drain hole, so even if the base member is attached to the drain hole, it does not obstruct drainage through the drain hole. Therefore, according to this embodiment, the pole body can be easily erected without impairing the function of the drainage hole.

[0011] (2) In the above-mentioned base pole, when the fitting portion has a pair of plates provided at one end opposite each other in the axial direction, it is preferable that each of the pair of plates has a fixing hole through which the pole body passes and an outer peripheral abutment portion that abuts against the inner peripheral surface. In this case, the fitting portion can be fitted to the inner peripheral surface while supporting the pole body with the pair of plates.

[0012] (3) Furthermore, in the above-mentioned base pole, it is preferable that each of the pair of plates further has at least one of a polygonal plate body whose vertices abut the inner peripheral surface, and a water passage hole that penetrates in the thickness direction of the plate. In this case, if the pair of plates is polygonal, the vertices of the outer peripheries of the pair of plates become the outer periphery abutment parts, and the side parts connecting the vertices form a gap with the inner periphery of the drainage hole. This allows the fitting part to fit into the inner periphery of the drainage hole without impeding the flow of water. Furthermore, even when the pair of plates have water passages, the fitting portion can fit into the inner peripheral surface of the drain hole without impeding the flow of water.

[0013] (4) Furthermore, when one of the pair of plates is provided on one axial side of the pole body relative to the other plate, the diameter of the circumscribing circle of the outer peripheral abutment portion of the one plate may be smaller than the diameter of the circumscribing circle of the outer peripheral abutment portion of the other plate. For example, if the inner surface of the drain hole is a tapered surface that narrows in diameter from the inner surface of the bottom wall to the outer surface of the bottom wall, by inserting the base member from the inner surface of the bottom wall, the outer abutment portions of each of the pair of plates can be properly abutted against the inner surface of the drain hole, and the base member can be fitted and fixed at a predetermined position within the drain hole.

[0014] (5) Also, from another perspective, a separator for dividing the interior of a wire accommodating facility, which is an embodiment of the present invention, comprises one or more base poles described in (1) above and one or more partition members attached to one or more of the pole bodies. According to the above configuration, the pole body can be easily erected without impairing the function of the drainage hole. Furthermore, the pole body with the partition member attached thereto can partition the interior of the electric wire receiving facility.

[0015] (6) The partition member may include a cylindrical member made of resin that covers the outer surface of the pole body. In this case, the cylindrical member can prevent direct contact between the outer surface of the pole body and the cable in the electric wire housing facility, thereby protecting the cable.

[0016] (7) Furthermore, when the partition member comprises a resin tubular member covering the outer surface of the pole body and a rod-shaped protrusion protruding from the tubular member in a direction intersecting the axial direction of the tubular member, it is preferable that the tubular member be configured to be rotatable around the central axis of the pole body. In this case, the interior of the wire receiving facility can be partitioned along the longitudinal direction by the pole body and the partition member. Furthermore, by rotating the cylindrical member so that the extending direction of the rod-shaped protrusions intersects with the longitudinal direction of the electric wire accommodation facility, a protector or the like for protecting the cables in the electric wire accommodation facility can be placed on the pole body and the partition member. In other words, with the above configuration, the pole body and the partition member can be used as a separator and also as a stand for supporting the protector or the like. Furthermore, when inserting or removing a cable into or from the wire storage facility, if the tubular member is rotated and the direction in which the rod-shaped protrusion extends is aligned with the longitudinal direction of the wire storage facility, the rod-shaped protrusion will not hinder the operation of inserting or removing the cable.

[0017] (8) Preferably, the partition member further includes a plurality of cylindrical members made of resin that cover the outer surfaces of the plurality of pole bodies, and a beam member that connects the plurality of cylindrical members. In this case, the pole body and the beam member can cut the interior of the electric wire receiving facility along the longitudinal direction.

[0018] (9) The partition member may include a planar member that is bridged between the plurality of pole bodies. In this case as well, the inside of the electric wire receiving facility can be partitioned along the longitudinal direction by the planar member.

[0019] (10) Furthermore, an electric wire accommodation facility according to another embodiment of the present invention includes an electric wire accommodation facility main body having a drainage hole in the bottom wall, and the above-mentioned base pole attached to the drainage hole. [Effects of the Invention]

[0020] According to the present invention, the pole can be easily erected without impairing the function of the drainage hole. [Brief explanation of the drawings]

[0021] [Figure 1] FIG. 1 is a perspective view of a cable trough to which a separator according to a first embodiment is attached. [Figure 2] FIG. 2 is a cross-sectional view of a main part of the cable trough shown in FIG. 1 taken along the width direction. [Figure 3] FIG. 3(a) is a cross-sectional view of a main part of the base pole, and FIG. 3(b) is a perspective view of a main part of the base pole. [Figure 4] 4(a) is an external view of the base pole as viewed from the inner surface side of the bottom wall, and FIG. 4(b) is a cross-sectional view taken along line BB in FIG. 3(a). [Figure 5] FIG. 5(a) is an external view of a modified example of the second plate, and FIG. 5(b) is an external view of another modified example of the second plate. [Figure 6] FIG. 6 is a cross-sectional view along the longitudinal direction of a cable trough to which a separator according to the second embodiment is attached. [Figure 7] FIG. 7 is a cross-sectional view of the cable trough when the direction in which the pair of rod-shaped projections extend is set to the width direction. [Figure 8] FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. [Figure 9]FIG. 9 is a perspective view showing an example of a protector. [Figure 10] FIG. 10 is a cross-sectional view along the longitudinal direction of a cable trough to which a separator according to the third embodiment is attached. [Figure 11] FIG. 11 is a cross-sectional view taken along line XI-XI in FIG. [Figure 12] FIG. 12 is a perspective view showing the inside of a cable trough to which a separator according to the fourth embodiment is attached. [Figure 13] FIG. 13 is a perspective view showing the inside of a cable trough to which a separator according to a modified example of the fourth embodiment is attached. DETAILED DESCRIPTION OF THE INVENTION

[0022] Preferred embodiments will now be described with reference to the drawings. [Regarding the first embodiment] FIG. 1 is a perspective view of a cable trough to which a separator according to a first embodiment is attached. In FIG. 1, a cable trough 1, which is an electric wire accommodation facility, accommodates a plurality of cables 2 (2a, 2b) and constitutes an electric wire common trench buried underground.

[0023] The cable trough 1 comprises a number of small boxes 3 connected side by side. Each small box 3 is, for example, a member made of precast concrete and formed in a substantially rectangular parallelepiped shape. In the following description, as shown in Fig. 1, the direction along the long sides of the small box 3 is referred to as the longitudinal direction X, and the direction perpendicular to the longitudinal direction X is referred to as the width direction Y. In addition, the direction perpendicular to the XY plane parallel to the longitudinal direction X and the width direction Y is referred to as the up-down direction.

[0024] Each small box 3 has a box body 4 and a cover member 6. The box body 4 has a bottom wall 8 and a pair of side walls 10. The bottom wall 8 is formed in the shape of a rectangular plate with its long sides extending along the longitudinal direction X. A pair of side walls 10 are erected upward along both long sides of the bottom wall 8. Therefore, the box body 4 has a U-shaped cross section. The top surface and both end surfaces in the longitudinal direction X of the box body 4 are open. The cover member 6 is a plate-shaped member made of concrete. The cover member 6 is disposed on the upper ends 10a of the pair of side walls 10 and closes the upper opening of the box body 4.

[0025] A plurality of cables 2 are housed in the internal space S of the cable trough 1. The multiple cables 2 include multiple types of cables such as power cables and communication cables such as telephone lines or optical fibers. The cables 2 are inserted into a protective tube 12 (12a, 12b). For example, among a plurality of cables 2, cables 2 of the same type are collectively inserted into one protective tube 12. 1, a power cable 2a is inserted through the protective tube 12a, and a communication cable 2b is inserted through the protective tube 12b.

[0026] The side wall 10 is provided with a knockout portion 14 . The knockout portion 14 is a rectangular portion where the thickness of the side wall 10 is partially thin. The knockout portion 14 is a portion that can easily form a rectangular side wall opening by drilling or removing a hole using a tool such as a grinder.

[0027] The separator 20 is provided upright above the bottom wall 8 of the cable trough 1 . The separator 20 is a rod-shaped member that protrudes from the bottom wall 8. The separator 20 has a function of dividing the interior space S.

[0028] Fig. 2 is a cross-sectional view of a main part along the width direction of the cable trough 1 shown in Fig. 1. Note that in Fig. 2, the cover member 6 is omitted. 2, the bottom wall 8 is provided with a drain hole 22. The drain hole 22 is a drain outlet for draining moisture that has entered the internal space S to the outside. The drain hole 22 is provided at approximately the center of the bottom wall 8 in the longitudinal direction X and the width direction Y. The drain hole 22 penetrates from the inner surface 8a to the outer surface 8b of the bottom wall 8. The inner surface 8a faces the internal space S. The outer surface 8b is a surface that forms the outer surface of the small box 3. The inner peripheral surface 22a of the drain hole 22 is a tapered surface whose diameter decreases from the inner surface 8a toward the outer surface 8b.

[0029] The separator 20 is inserted into the drain hole 22 . The separator 20 includes a base pole 26 and a partition member 28 . The base pole 26 is a rod-shaped metal member inserted into the drain hole 22 and is installed upright within the cable trough 1.

[0030] The base pole 26 comprises a pole body 30 and a base member 32 . The base member 32 is provided at one end 30a of the pole body 30 on one axial side. The base member 32 is attached to the inside of the drain hole 22 . The pole body 30 is a rod-shaped member made of metal, is supported by a base member 32, and stands upright in the vertical direction upward from the bottom wall 8. Therefore, the other end 30b of the pole body 30 on the other axial side faces upward. The pole body 30 extends to a height approximately half the height of the side wall 10 . In the following description, the axial direction is defined as the direction parallel to the central axis of the pole body 30. The side in the axial direction facing one end 30a of the pole body 30 is defined as one axial side, and the side in the axial direction facing the other end 30b of the pole body 30 is defined as the other axial side.

[0031] The partition member 28 is attached to the pole body 30. More specifically, the partition member 28 is placed over the base pole 26 and covers the outer surface of the pole body 30. Note that Figure 2 shows the partition member 28 removed from the pole body 30.

[0032] The partition member 28 includes a cylindrical member 28a and a tip cap 28b. The cylindrical member 28a is a cylindrical member made of resin, such as a vinyl chloride resin pipe. The tip cap 28b is a resin member attached to one end 28a1 of the cylindrical member 28a. The tip cap 28b closes the opening on the one end 28a1 side of the cylindrical member 28a. The pole body 30 is inserted into the cylindrical member 28a from the opening on the other end 28a2 side. The length of the cylindrical member 28a is set to a length that can cover the entire pole body 30 in the longitudinal direction.

[0033] The pole body 30 to which the partition member 28 is attached is erected at approximately the center of the width direction Y of the bottom wall 8. The cables 2 in the cable trough 1 extend along the longitudinal direction X. Therefore, the pole body 30 to which the partition member 28 is attached can bundle the cables 2 in the cable trough 1 or separate them in the width direction. In other words, the pole body 30 to which the partition member 28 is attached can divide the inside of the cable trough 1 along the longitudinal direction X. Furthermore, since the partition member 28 includes a tubular member 28a, this tubular member 28a prevents direct contact between the outer surface of the pole body 30 and the cable 2 (protective tube 12) inside the cable trough 1, thereby protecting the cable 2.

[0034] Furthermore, the cylindrical member 28a is mounted rotatably around the central axis of the pole body 30. Therefore, when the cable 2 routed inside the cable trough 1 comes into contact with the cylindrical member 28a (partition member 28), the cylindrical member 28a rotates, preventing the cable 2 from rubbing against the cylindrical member 28a. As a result, the cable 2 can be protected more effectively.

[0035] 3(a) is a cross-sectional view of a main part of the base pole 26, and FIG. 3(b) is a perspective view of a main part of the base pole 26. As shown in FIG. 3(a) and 3(b), the pole body 30 is a screw shaft made of metal. A male screw is formed on the outer circumferential surface of the pole body 30. A cylindrical member 28a of the partition member 28 is attached to the outer periphery of the pole body 30. The lower end of the cylindrical member 28a abuts against the upper surface of a nut 40, which will be described later.

[0036] The base member 32 includes a fitting portion 33 , a spacer 38 , and a nut 40 . The fitting portion 33 is a member that fits onto the inner circumferential surface 22a without impeding the flow of water through the drainage hole 22. The fitting portion 33 includes a first plate 34 and a second plate 36 . The first plate 34 is provided at one end 30a of the pole body 30. The first plate 34 has a first plate body 35 formed from a metal plate. The outer shape of the first plate body 35 is square (rectangular). The first plate body 35 has a fixing hole 35a. An internal thread is formed on the inner peripheral surface of the fixing hole 35a to be threadedly engaged with the external thread on the outer peripheral surface of the pole body 30. The first plate 34 (first plate body 35) and the pole body 30 are threadedly engaged with each other. As a result, one end 30a of the pole body 30 passes through the fixing hole 35a.

[0037] The second plate 36 is provided at one end 30a of the pole body 30. The second plate 36 is provided on the other axial side of the first plate 34. The first plate 34 and the second plate 36 are provided at one end 30a of the pole body 30 and axially face each other. The second plate 36 has a second plate body 37 formed from a metal plate. The outer shape of the second plate body 37 is square (rectangular). The second plate body 37 has a fixing hole 37a. An internal thread is formed on the inner peripheral surface of the fixing hole 37a to be threadedly engaged with the external thread on the outer peripheral surface of the pole body 30. The second plate 36 (second plate body 37) and the pole body 30 are threadedly engaged with each other. As a result, one end 30a of the pole body 30 passes through the fixing hole 37a.

[0038] The spacer 38 and the nut 40 are members for fixing the fitting portion 33 (the first plate 34 and the second plate 36) to one end 30a of the pole body 30. The spacer 38 is interposed between the first plate 34 and the second plate 36. The spacer 38 defines the axial distance between the first plate 34 and the second plate 36. The spacer 38 is formed, for example, by a long nut. An internal thread is formed on the inner peripheral surface 38a of the spacer 38 to be threadedly engaged with the external thread on the outer peripheral surface of the pole body 30. The spacer 38 and the pole body 30 are threadedly engaged with each other. As a result, one end 30a of the pole body 30 penetrates the inner peripheral surface 38a.

[0039] The nut 40 is disposed on the other axial side of the second plate 36. The nut 40 is a member that is tightened to prevent loosening of the components that make up the base member 32. An internal thread is formed on the inner peripheral surface 40a of the nut 40 to thread onto the external thread on the outer peripheral surface of the pole body 30. The nut 40 and the pole body 30 are threadedly engaged with each other.

[0040] FIG. 4(a) is an external view of the base pole 26 as seen from the inner surface 8a side of the bottom wall 8. FIG. As described above, the second plate body 37 of the second plate 36 is square in shape. Therefore, the outer periphery of the second plate body 37 includes four vertices 37b and four side surfaces 37c. The four vertices 37b abut against the inner peripheral surface 22a. The second plate 36 is fitted to the inner peripheral surface 22a by the four vertices 37b abutting against the inner peripheral surface 22a. In other words, the four vertices 37b form outer peripheral abutment portions that abut against the inner peripheral surface 22a. Furthermore, the four side surface portions 37c connecting the four vertices 37b form a gap M1 between the inner circumferential surface 22a and the four side surface portions 37c. Moisture in the cable trough 1 can pass through this gap M1. This allows the second plate 36 to fit onto the inner circumferential surface 22a without impeding the flow of moisture.

[0041] Figure 4(b) is a cross-sectional view taken along line BB in Figure 3(a). Figure 4(b) shows the first plate 34 disposed in the drainage hole 22. For ease of understanding, Figure 4(b) only shows the first plate 34 disposed in the drainage hole 22.

[0042] As described above, the first plate body 35 of the first plate 34 is square-shaped. Therefore, the outer periphery of the first plate body 35 includes four vertices 35b and four side surfaces 35c. The four vertices 35b abut against the inner peripheral surface 22a. The first plate 34 is fitted to the inner peripheral surface 22a by the four vertices 35b abutting against the inner peripheral surface 22a. In other words, the four vertices 35b form outer peripheral abutment portions that abut against the inner peripheral surface 22a. Furthermore, the four side surface portions 35c connecting the four vertices 35b form a gap M2 between the inner circumferential surface 22a and the four side surface portions 35c. Moisture in the cable trough 1 can pass through this gap M2. This allows the first plate 34 to fit onto the inner circumferential surface 22a without impeding the flow of moisture.

[0043] In this manner, in this embodiment, the first plate 34 and the second plate 36 included in the fitting portion 33 have the first plate main body 35 and the second plate main body 37 that are square (polygonal), and therefore, as described above, the side portions 35c, 37c form gaps M2, M1 between them and the inner circumferential surface 22a. This allows the fitting portion 33 to fit into the inner circumferential surface 22a without impeding the flow of moisture.

[0044] In this embodiment, the diameter of the circumscribing circle of the four vertices 35b, which are the outer peripheral contact portions of the first plate , is smaller than the diameter of the circumscribing circle of the four vertices 37b, which are the outer peripheral contact portions of the second plate . As a result, by inserting the base member 32 from the inner surface 8a side into the inner circumferential surface 22a, which is a tapered surface that decreases in diameter from the inner surface 8a toward the outer surface 8b, the outer circumferential abutment portions of both plates 34, 36 can be properly abutted against the inner circumferential surface 22a, and the base member 32 can be fitted and fixed at a predetermined position within the drainage hole 22. In other words, although the drainage hole 22 in this embodiment is a through hole, the base member 32 fits at a predetermined position within the drainage hole 22 and remains within the drainage hole 22. This prevents the base member 32 from passing through the drainage hole 22.

[0045] In addition, in this embodiment, the first plate 34 and the second plate 36 have fixing holes 35a, 37a through which the pole body 30 passes, so the fitting portion 33 can fit into the inner surface 22a while supporting the pole body 30.

[0046] As described above, according to the base pole 26 of this embodiment, by fitting and attaching the base member 32 into the drainage hole 22 of the bottom wall 8, the pole body 30 can be easily erected from the bottom wall 8. Here, the base member 32 has a fitting portion 33 that fits into the inner surface 22a of the drainage hole 22 without impeding the flow of moisture through the drainage hole 22, so even if the base member 32 is attached to the drainage hole 22, it does not impede drainage through the drainage hole 22. Therefore, according to this embodiment, the pole body 30 can be erected without impairing the function of the drainage hole 22.

[0047] Furthermore, in this embodiment, the pole body 30 can be erected by simply fitting the base member 32 into the drainage hole 22, so there is no need to attach a bracket or the like to the inner surface 8a of the bottom wall 8. Therefore, even when the cable 2 is housed in the cable trough 1, if the drainage hole 22 is exposed, the base pole 26 can be attached to the drainage hole 22, and the pole body 30 can be erected easily.

[0048] FIG. 5(a) is an external view of a modified example of the second plate 36. FIG. The second plate 36 shown in FIG. 5(a) differs from the second plate 36 described above in that it has a second plate body 37 in the shape of a regular octagon and is provided with four water passage holes 42. The four water passage holes 42 are holes that penetrate the second plate 36 (second plate main body 37) in the plate thickness direction. The four water passage holes 42 are arranged at equal intervals around the central axis of the pole body 30. Moisture in the cable trough 1 can pass through the four water passage holes 42.

[0049] The second plate body 37 of this modified example has a regular octagonal shape, and therefore the outer periphery of the second plate body 37 includes eight vertices 37b and eight side surfaces 37c. The eight vertices 37b are in contact with the inner peripheral surface 22a. The second plate 36 is fitted to the inner peripheral surface 22a by the eight vertices 37b being in contact with the inner peripheral surface 22a. Furthermore, the eight side surface portions 37c define gaps M1 between themselves and the inner circumferential surface 22a.

[0050] The second plate 36 of this modified example has four water passage holes 42 and an octagonal second plate body 37, so that it can be fitted to the inner circumferential surface 22a without impeding the flow of water.

[0051] FIG. 5(b) is an external view of another modified example of the second plate 36. As shown in FIG. The second plate 36 shown in FIG. 5(b) has a circular second plate body 37 and four water holes 42.

[0052] The second plate body 37 of this modified example has a circular shape, and therefore the side surface portion 37c, which is the outer periphery of the second plate body 37, abuts against the inner periphery surface 22a over substantially the entire periphery. Therefore, there is almost no gap between the outer periphery of the second plate body 37 and the inner periphery surface 22a. However, the second plate 36 of this modified example has four water-passing holes 42, and therefore can be fitted to the inner circumferential surface 22a without impeding the flow of water.

[0053] The above-described variations of the second plate 36 are also applicable to the first plate 34.

[0054] [Regarding the second embodiment] Fig. 6 is a cross-sectional view along the longitudinal direction of the cable trough 1 to which the separator 20 according to the second embodiment is attached. Note that the cover member 6 is omitted in Fig. 6.

[0055] The separator 20 of this embodiment includes a plurality of base poles 26 and a plurality of partition members 28 attached to the plurality of base poles 26 . FIG. 6 shows two base poles 26 attached to the drain holes 22 of the two box bodies 4 and two partition members 28.

[0056] This embodiment differs from the first embodiment in that the partition member 28 includes a pair of rod-shaped protrusions 28d in addition to a cylindrical member 28a, but other points are the same as those of the first embodiment.

[0057] As described above, the tubular member 28a is a cylindrical member made of resin, and is attached to the pole body 30 so as to be rotatable around the central axis thereof. A T-joint 28c is provided at the tip of the cylindrical member 28a. The T-joint 28c is a joint that connects the cylindrical member 28a and a pair of rod-shaped protrusions 28d. The pair of rod-shaped protrusions 28d are cylindrical members made of resin. The pair of rod-shaped protrusions 28d are connected to the tip of the tubular member 28a by T-joints 28c. The pair of rod-shaped protrusions 28d protrude in a direction perpendicular to the axial direction of the tubular member 28a. In FIG. 6, the pair of rod-shaped projections 28d extend along the longitudinal direction X.

[0058] The distance between the tips 28d1 of the pair of rod-shaped projections 28d is slightly smaller than the width between the inner surfaces 10b of the side walls 10 facing each other. The pair of rod-shaped projections 28d are provided so as to be rotatable integrally with the cylindrical member 28a. Therefore, the extending direction of the pair of rod-shaped protrusions 28d can be set to the direction along the width direction Y by rotating the cylindrical member 28a.

[0059] Fig. 7 is a cross-sectional view of the cable trough 1 when the extension direction of the pair of rod-shaped protrusions 28d is set to the direction along the width direction Y. Fig. 8 is a cross-sectional view taken along the line VIII-VIII in Fig. 7. Note that the cover member 6 is omitted in Figs. 7 and 8. Furthermore, the cable 2 and the protective tube 12 are omitted in Fig. 7.

[0060] 8, the direction in which the pair of rod-shaped protrusions 28d extend is along the width direction Y. Therefore, the tips 28d1 of the pair of rod-shaped protrusions 28d abut against the inner surface 10b of the side wall 10. The pair of rod-shaped projections 28d extend over almost the entire area of the internal space S of the box body 4 in the width direction Y.

[0061] As shown in FIGS. 7 and 8, a protector 46 is placed on the partition member 28. The protector 46 is a member for protecting the cable 2 inside the cable trough 1 when the cover member 6 is opened to perform work. FIG. 9 is a perspective view showing an example of the protector 46. As shown in FIG. The protector 46 is a member formed by combining a plurality of wires or the like, and includes a plurality of vertical bars 46a and a plurality of horizontal bars 46b. The protector 46 is made up of a plurality of wires arranged in a lattice pattern. The length of the horizontal bars 46b is set to be substantially the same as the distance between the tips 28d1 of the pair of rod-shaped projections 28d. The length of the plurality of vertical bars 46a is set to be substantially the same as the interval between the partition members 28 aligned in the longitudinal direction X.

[0062] As shown in FIGS. 7 and 8, the protector 46 is placed so as to bridge two partition members 28 arranged in the longitudinal direction X. As a result, even if a foreign object falls from the outside into the internal space S when the cover member 6 is opened to perform work, the foreign object can be captured by the protective device 46, preventing the foreign object from coming into contact with the cable 2 or the protective tube 12.

[0063] In this embodiment, the inside of the cable trough 1 can be partitioned along the longitudinal direction X by the base pole 26 and the partition member 28. Furthermore, by rotating the cylindrical member 28a so that the extending direction of the pair of rod-shaped projections 28d coincides with the width direction Y, a protector 46 or the like that protects the cable 2 in the cable trough 1 can be placed on the base pole 26 and the partition member 28. That is, according to the above configuration, the base pole 26 and the partition member 28 can be used as a separator and also as a stand that supports the protector 46 or the like.

[0064] Furthermore, when performing work such as inserting or removing the cable 2 into or from the cable trough 1 or performing maintenance on the cable 2 inside the cable trough 1, by rotating the tubular member 28a and aligning the extension direction of the pair of rod-shaped protrusions 28d with the longitudinal direction X, the pair of rod-shaped protrusions 28d will not hinder the above work.

[0065] [Regarding the third embodiment] Fig. 10 is a longitudinal cross-sectional view of a cable trough 1 to which a separator 20 according to the third embodiment is attached. Fig. 11 is a cross-sectional view taken along line XI-XI in Fig. 10. Note that the cover member 6 is omitted in Fig. 10 and Fig. 11. Furthermore, the cable 2 and the protective tube 12 are omitted in Fig. 10.

[0066] The separator 20 of this embodiment includes a plurality of base poles 26 and partition members 28 attached to the plurality of base poles 26 . FIG. 10 shows two base poles 26 attached to the drain holes 22 of two box bodies 4, and partition members 28 attached to the two base poles 26.

[0067] This embodiment differs from the first embodiment in that the partition member 28 includes a plurality of cylindrical members 28a and a beam member 28f connecting the plurality of cylindrical members 28a. Other points are the same as those of the first embodiment.

[0068] In FIG. 10, an L-shaped joint 28e is provided at the tip of a cylindrical member 28a attached to one of the two base poles 26 (the one on the left side of the drawing). Furthermore, a T-shaped joint 28c is provided at the tip of the cylindrical member 28a attached to the other (right side of the drawing) of the two base poles 26. An L-shaped joint 28e is a joint that connects the cylindrical member 28a and a beam member 28f. Beam member 28f is a cylindrical member made of resin. Beam member 28f is connected to the ends of two tubular members 28a by L-shaped joint 28e and T-shaped joint 28c, connecting two tubular members 28a.

[0069] 10, the beam member 28f extends along the longitudinal direction X. In this case, the partition member 28 and the base pole 26 can divide the inside of the cable trough 1 along the longitudinal direction X.

[0070] Furthermore, when beam members 28f are used in this manner, by connecting multiple beam members 28f, the separator 20 can be extended or shortened along the longitudinal direction X, allowing it to be made to have an appropriate range depending on the situation.

[0071] Furthermore, as shown in FIG. 11, when a plurality of protective tubes 12a to 12h are housed in the internal space S, when a portion of the power cable 2a in the protective tube 12a at the left end of the paper is pulled out to the outside of the cable trough 1 from the side wall opening 50 provided on the opposite side in the width direction Y, if there is no partition member 28, the pulled-out power cable 2a will cross the internal space S along the upper surfaces of the protective tubes 12b to 12h and be pulled out to the outside from the side wall opening 50. In this case, it becomes difficult to accommodate additional cables 2 above the protective tubes 12b to 12h across which the power cable 2a crosses, because placing additional cables 2 above the crossing power cable 2a is not preferable in terms of maintenance, etc.

[0072] In this regard, since the separator 20 of this embodiment has the beam members 28f, the power cable 2a in the protective tube 12a can be placed on the beam members 28f when being drawn out from the side wall opening 50 to the outside of the cable trough 1. This makes it possible to provide a space above the protective tubes 12b to 12h when the power cable 2a crosses the internal space S, and also to provide a space below the power cable 2a crossing the internal space S that can accommodate the cable 2.

[0073] [Regarding the Fourth Embodiment] Fig. 12 is a perspective view showing the inside of the cable trough 1 to which the separator 20 according to the fourth embodiment is attached. Note that Fig. 12 shows a state in which the cover member 6 has been removed and a part of the side wall 10 has been cut away.

[0074] The separator 20 of this embodiment includes two base poles 26 and a partition member 28 attached to the two base poles 26. This embodiment differs from the first embodiment in that the partition member 28 includes a planar member 52.

[0075] In FIG. 12, the partition member 28 includes a planar member 52 and a pair of brackets 54 . The planar member 52 is bridged between the pole bodies 30 of the two base poles 26 . Each of the pair of brackets 54 has a sleeve attached to the outer periphery of the pole body 30 and a holding portion fixed to the sleeve to hold the planar member 52. The pair of brackets 54 fix both short sides of the planar member 52 to the two base poles 26 (pole bodies 30). Both short sides of the planar member 52 are aligned along the pole body 30. In other words, the plane direction of the planar member 52 is aligned along the vertical direction. The planar member 52 is, for example, a rectangular plate-like member formed from a resin plate, etc. The dimension of the long side of the planar member 52 is set to be substantially the same value as the distance between the two base poles 26.

[0076] 12, the planar member 52 extends along the longitudinal direction X. Therefore, even in this case, the partition member 28 and the base pole 26 can partition the inside of the cable trough 1 along the longitudinal direction X.

[0077] Fig. 13 is a perspective view showing the inside of the cable trough 1 to which the separator 20 according to the modified example of the fourth embodiment is attached. Note that Fig. 13 shows a state in which the cover member 6 has been removed and a part of the side wall 10 has been cut away.

[0078] In FIG. 13, the planar member 52 of this modified example differs from that of the fourth embodiment in that it is laid down in a direction intersecting the up-down direction. The planar member 52 of this modified example has a plurality of fixing holes 52a through which the pole body 30 is fixed. The edge of the long side of the planar member 52 may be placed on the protective tube 12 or may be fixed to the inner surface 10 b of the side wall 10 .

[0079] The fixing hole 52a is fixed at a predetermined height position in the pole body 30. This ensures a space s1 between the planar member 52 and the inner surface 8a, and the internal space S is divided into upper and lower parts by the planar member 52.

[0080] 13, the planar member 52 extends along the longitudinal direction X. Therefore, even in this case, the partition member 28 and the base pole 26 can partition the inside of the cable trough 1 along the longitudinal direction X. Furthermore, in this modified example, the internal space S can be divided into upper and lower sections, and an appropriate separator 20 can be configured depending on the situation.

[0081] In the fourth embodiment and its modified examples, the planar member 52 is exemplified as being made of a resin plate, but any planar member such as a corrugated resin plate or a wooden plate can be used.

[0082] 〔others〕 The embodiments disclosed herein are illustrative in all respects and are not restrictive. In each of the above embodiments, the fitting portion 33 is formed using the first plate 34 and the second plate 36, but the fitting portion 33 (base member 32) may also be formed using a structural material having a water passage such as a through hole inside.

[0083] In addition, in each of the above embodiments, the rectangular first plate body 35 and second plate body 37 are exemplified as having outer shapes of both plate bodies 35, 37 that are square and regular octagon, respectively, but this is not limited to these, and the outer shapes of both plate bodies 35, 37 may be other regular polygons or convex polygons other than regular polygons. In addition, in each of the above embodiments, the drainage hole 22 is a through-hole, but the drainage hole 22 may be a bottomed hole that opens to the inner surface 8a and does not penetrate the bottom wall 8 in the vertical direction. Even in this case, the base pole 26 can be attached to the drainage hole 22.

[0084] Furthermore, in the above-described embodiments, the case where a base pole 26 is attached to each of the plurality of drainage holes 22 arranged along the longitudinal direction X has been exemplified, but the base pole 26 may be attached to, for example, every other one of the plurality of drainage holes 22, or the base pole 26 may be attached to any of the drainage holes 22. In this way, the base poles 26 and the partition members 28 have a high degree of freedom in terms of arrangement, and an appropriate separator 20 can be configured depending on the situation.

[0085] In the above first embodiment, the length of the cylindrical member 28a is set to a length that can cover the entire longitudinal direction of the pole body 30, but the cylindrical member 28a may be set to a dimension that is longer than the length of the pole body 30. In this case, the length of the cylindrical member 28a can be set regardless of the length of the pole body 30. In addition, in each of the above embodiments, the pole body 30 is a screw shaft, but it may be a shaft having a smooth outer surface as long as the fitting portion 33 can be fixed to the one end portion 30a.

[0086] The scope of the present invention is not limited to the above-described embodiments, but includes all modifications within the scope of equivalents to the configurations described in the claims. [Explanation of symbols]

[0087] 1 Cable Trough 2 Cables 2a power cable 2b communication cable 3 Small Box 4 Box body 6 Lid member 8 Bottom Wall 8a Inner surface 8b External surface 10 side wall 10a top end 10b Inner surface 12 Protection tube 12a Protection tube 12b Protection tube 12c protection tube 12d protection tube 12e protection tube 12f protection tube 12g protection tube 12h protection tube 14 Knockout section 20 Separator 22 Drain hole 22a Inner surface 26 Base Pole 28 Partition member 28a Cylindrical member 28a1 One end 28a2 Other end 28b Tip cap 28c T-type fitting 28d rod-like process 28d1 tip 28e L-type joint 28f Beam member 30 Pole body 30a One end 30b Other end 32 Base material 33 Fitting part 34 Plate 1 35 First plate body 35a fixing hole 35b apex 35c side part 36 Second Plate 37 Second plate body 37a Fixing hole 37b apex 37c Side part 38 Spacer 38a Inner surface 40 nuts 40a Inner surface 42 Water vent 46 Protective Equipment 46a Vertical bar 46b Horizontal bar 50 Side wall opening 52 Planar members 52a Fixing hole 54 Bracket M1 gap M2 gap S interior space X Longitudinal direction Y width direction

Claims

1. A base pole erected in a wire receiving facility, The pole body and a base member provided at one end of the pole body on one side in the axial direction, The base member is The wire receiving device has a fitting portion that fits into the inner peripheral surface of the drain hole without obstructing the flow of water through the drain hole in the bottom wall of the wire receiving device. Base pole.

2. The fitting portion is a pair of plates provided at the one end portion and facing each other in the axial direction; Each of the pair of plates has a fixing hole through which the pole body passes and an outer circumferential abutment portion that abuts against the inner circumferential surface. The base pole of claim 1 .

3. Each of the pair of plates further has at least one of a polygonal plate body whose vertices abut against the inner peripheral surface and a water passage hole penetrating in the plate thickness direction. The base pole according to claim 2 .

4. One of the pair of plates is provided on one side of the pole body in the axial direction relative to the other plate, The diameter of the circumscribing circle of the outer peripheral abutment portion of the one plate is smaller than the diameter of the circumscribing circle of the outer peripheral abutment portion of the other plate. The base pole according to claim 2 or claim 3.

5. A separator that divides the inside of the electric wire receiving facility, One or more base poles according to claim 1; and one or more partition members attached to one or more of the pole bodies. Separator.

6. The partition member is A resin cylindrical member covering the outer surface of the pole body The separator according to claim 5 .

7. The partition member is a resin cylindrical member covering the outer surface of the pole body; a rod-shaped protrusion protruding from the cylindrical member in a direction intersecting the axial direction of the cylindrical member, The cylindrical member is rotatable around the central axis of the pole body. The separator according to claim 5 .

8. The partition member is a plurality of cylindrical members made of resin covering the outer surfaces of the plurality of pole bodies; and a beam member connecting the plurality of cylindrical members. The separator according to claim 5 .

9. The partition member includes a planar member that is bridged between the plurality of pole bodies. The separator according to claim 5 .

10. a wire receiving equipment body having a drain hole in the bottom wall; and the base pole according to claim 1 attached to the drain hole. Electric wire accommodation equipment.

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