JP3177641U - Pipe branch device for wiring branch - Google Patents

Abstract

An object of the present invention is to provide a branching pipe joint device capable of forming a branch pipe while maintaining a line connection state without damaging existing wirings in the electric pipe pipe when branching from the conduit pipe. I will provide a.
A lower half body having a semicircular cross section covering the lower half of the removed portion straddling between the ends of the removed portion cut and removed at the branch portion of the electric conduit to be branched, and also the end of the removed portion A semicircular cross-section covering the upper half of the removed portion straddling the parts, connecting a branch pipe 8 connected to the branch pipe, and an upper half 5 assembled integrally with the lower half 2; Consists of. The adjustment packing materials 4 and 7 are interposed at the joint mounting portions between the ends of the lower half 2 and the upper half 5 and the ends of the conduits. The branch pipe 8 is tilted with respect to the upper half 5 and is branched and connected in a cylindrical shape. The branch pipe 8 is connected between the lower surface of the branch pipe 8 and the upper surface of the upper half 5 on the inclined acute angle side. The connecting piece 9 is connected. The edges of the lower half 2 and the upper half 5 are assembled in an interlocking manner by the concave and convex fitting portion 10.
[Selection] Figure 1

Description

  This device is intended to store new wires and cables separately from the existing wires and cables that are housed in the conduits that are buried underground, for example, due to the relocation and replacement of utility poles. When a new conduit is formed by branching from an existing conduit, the branch conduit for accommodating new wires or cables is branched without interrupting the existing wires or cables. The present invention relates to a pipe branch coupling device that can be configured.

  As power or communication demand increases, power lines and communication cables that supply these to customers will be newly installed or relocated, so it will be necessary to newly install, relocate, etc., such as utility poles that support them. Sometimes. Along with this, for example, new wiring is routed separately from the existing wires, cables, etc. stored in this conduit from a predetermined part of the existing conduit that is buried in the ground. A situation arises in which a new conduit is branched and connected so as to be accommodated. However, even if a new conduit is branched, the wires stored inside must be maintained as they are, so the conduit itself is broken to connect the joint for the branch conduit. Then, since it will also damage internal wiring, careful work is required.

  From such a point, conventionally, for example, a branching method for underground cable paths shown in Patent Document 1 and a cable protection pipe branching method shown in Patent Document 2 have been proposed. The branch processing method of Patent Document 1 assumes a place where branching is necessary after laying underground cables, and uses a split joint having a length capable of branching the cable in advance at this place. It is assumed that the connection is made, and when the branch process is necessary, the split joint is removed and the branch process is performed. In the branching method of Patent Document 2, when the inner pipe housed in the outer pipe of the cable protection pipe is branched, the inner pipe is cut by a predetermined length using an opening formed in the outer pipe. The inner branch pipe connected to the branch member communicated between the end portions of the parts is passed through the opening and protrudes to the outside of the outer pipe, and the communication cable can be passed from the inner branch pipe to the inner pipe. To do.

JP-A-9-135514 JP 2004-80953 A

  However, according to the branch processing method of Patent Document 1, since a branchable place is assumed, if it is necessary to branch at a place different from the assumed place, this cannot be dealt with, is troublesome, and is troublesome. It is not realistic to connect the split joints assuming the branching. According to the branching method of Patent Document 2, if an existing communication cable is wired and stored in the inner pipe, the inner pipe itself can be partially excised with care so as not to damage the communication cable. However, it is almost impossible to connect the ends of the cut portions with a cylindrical branching member while leaving the existing communication cable as it is. If this line work is to be performed, the existing communication cable must be removed once and then re-wired, so communication may be temporarily interrupted or a communication interruption may occur. It is not acceptable for consumers.

  Therefore, the present invention was devised in view of the existing circumstances as described above, and its purpose is to form a new branch line in the existing line, for example, along with the transfer / replacement of a utility pole, etc. When you do this, you can configure the branch pipeline while maintaining the wiring state without damaging the existing wires, cables, etc. that are housed in the conduit, and the constructed conduit itself In addition, any existing or new wiring in the conduit will be sufficiently protected from external shocks, vibrations, etc., so that the construction of the branch conduit can be performed easily and quickly. The object is to provide a branch pipe joint device.

In order to solve the above-described problem, a description will be given with reference numerals in the form for carrying out the device to be described later. In this device, a branch portion in the conduit P to be branched is cut at a predetermined length. The lower half body 2 having a semicircular cross section covering the lower half of the removed portion straddling between the ends of the removed portion to be removed, and the cross section covering the upper half of the removed portion straddling the ends of the removed portion. A branch pipe 8 connected to a branch pipe to be branched is connected in a semicircular shape, and is composed of an upper half 5 assembled integrally with the lower half 2.
An adjustment packing material 4, 7 can be interposed between the end portions of the lower half body 2 and the upper half body 5 and the end portion of the electric conduit P.
The branch pipe body 8 is inclined with respect to the upper half body 5 so as to be branched and connected integrally in a cylindrical shape, and between the lower surface of the branch pipe body 8 and the upper surface of the upper half body 5 on the inclined acute angle side. Can be configured by connecting them with a triangular connecting piece 9 when viewed from the side.
The lower half body 2 and the upper half body 5 are assembled in a cylindrical shape by a concave-convex fitting portion 10 structure formed so as to face and mesh with the upper and lower end edges. Is formed in a convex shape at the upward or downward edge of either the lower half 2 or the upper half 5 and concave at the other downward or upward edge. A protrusion 11 that fits into a recess 15 formed in a substantially central position in the cross section and in a substantially central position in the cross section of the other end edge is formed, and on the inner side of the protrusion 11, The inner stepped portion 12 that is in contact with the inner end surface portion 16 that is the inner portion contacts the outer end surface portion 17 that is formed on the outer side of the concave portion 15 on the other end edge on the outer side of the protrusion 11. Consists of outer stepped portions 13 in contact with each other It is possible.
A step eliminating portion 20 is arranged and formed at the end of the mounting portion of the lower half 2 with respect to the electric conduit P. The step eliminating portion 20 is arranged along the arcuate inner surface of the lower half 2. The guide inclined surface 21 which is curved so as to gradually increase as it reaches the front side in the insertion direction of the wiring member M inserted from the branch tube 8, and the end surface of the conduit P Accordingly, the cross section having a contact surface 22 substantially upright with respect to the inner surface of the lower half 2 is formed in a substantially right triangle shape, and the guide inclined surface 21 is formed in the branch pipe 8 in the upper half 5. It can comprise by making it substantially face with respect to an inclination direction.

In the wiring branch pipe joint device according to the present invention configured as described above, in the existing electric wire pipe P, a part of the electric wire pipe P is cut and removed at a predetermined position where the branch pipe line should be formed. Assembling and mounting the lower half body 2 and the upper half body 5 so as to cover the cut and removed portion in a cylindrical shape, the branch pipe is not damaged from the electric line P without damaging the existing wiring C. A branch pipe 8 that connects the roads is formed.
The adjustment packing materials 4 and 7 interposed in the gaps between the ends of the lower half 2 and the upper half 5 and the conduit P are the inner surfaces of the lower half 2 and the upper half 5 and the conduit. The space between the road P and the outer surface is closed, rattling is prevented, and integrity is ensured.
The upper and lower end edges of the lower half body 2 and the upper half body 5 are assembled into a cylindrical shape by a concave / convex fitting portion 10 for fitting the concave and convex portions, and the concave / convex fitting portion 10 itself is formed at one end edge. With the inner stepped portion 12 and the outer stepped portion 13 inside and outside the protrusion 11, and the other end edge with the inner end face portion 16 and the outer end face portion 17 inside and outside the recess 15, It prevents the separation between each other.
The wire member M inserted from the branch tube 8 side of the upper half 5 is connected to the conduit tube by the step eliminating part 20 formed at the front end in the insertion direction of the wire member M in the lower half 2. The step corresponding to the tube wall thickness of the electric conduit P generated between the passage P and the passage P is overcome, and the insertion work of the wire member M into the inner portion of the electric conduit P is facilitated.

  Since the present invention is configured as described above, in the existing electric line P, for example, when a branch line is newly connected by branching / replacement such as a utility pole, the electric line at the branch point A part of P can be cut and removed, and the branch pipe 8 connecting the branch pipes can be easily branched into the electric pipe P by attaching the joint device 1 including the lower half 2 and the upper half 5. In addition, in the configuration, the branch pipeline can be configured while maintaining the line connection state without damaging the existing wires C and other wires C and the like housed in the conduit P. In addition, the constructed conduit P itself, and any existing or new wiring C in the conduit P are sufficiently protected from external impact, vibration, etc., for example, without disconnection during work, There will be no communication problems and other problems associated with the disconnection, and there will be no hindrance to the business at the customer.

  That is, in this device, the lower half 2 having a semicircular cross section covering from above and below across the ends of the removed portion cut and removed by a predetermined length at the branch portion in the conduit P to be branched, Similarly, the upper half 5 is assembled, and the upper half 5 is connected to the branch pipe 8 connected to the branch pipe to be branched. Therefore, it is possible to obtain a simple and rapid series of operations including the configuration of the branch line, disconnection of the wiring C, damage prevention, and the wiring of the branching wiring C.

  Moreover, since the adjustment packing materials 4 and 7 are interposed in the joint attachment site | part of each edge part of the lower half body 2 and the upper half body 5, and the edge part of the electrical conduit P, electrical conduit P This prevents the rattling that may occur due to a gap with the joint device 1 of the present invention at the end of the cut and removed portion, and closes the gap to prevent entry of foreign matters and the like in the conduit P. Maintain the wiring environment.

  The branch pipe 8 branched and connected to the upper half 5 has a connecting piece 9 connecting the lower surface of the branch pipe 8 and the upper surface of the upper half 5 on the inclined acute angle side. The branch pipe 8 branched from 5 can be integrated with the upper half 5 of the branch pipe 8, and the branch form of the branch pipe connected to the branch pipe 8 can be maintained.

  The edges of the lower half 2 and the upper half 5 along the vertical direction are engaged with each other by the concave / convex fitting portion 10, and the concave / convex fitting portion 10 is located at one end edge of the protrusion 11. Are provided with an inner step portion 12 and an outer step portion 13, and the other end has an inner end surface portion 16 and an outer end surface portion 17 inside and outside the recess portion 15. In the inner and outer directions of the end edges of the lower half 2 and the upper half 5, they are firmly connected by meshing with each other, and are not detached by impact, vibration, or the like from the outside.

  Further, a step eliminating portion 20 is disposed and formed at the end of the lower half 2 that is the front in the insertion direction of the wiring member M inserted from the branch tube 8 side. The guide inclined surface 21 facing the insertion direction of the wire member M is formed so as to gradually increase toward the front side in the insertion direction. Therefore, when the tip of the wiring member M inserted from the branch pipe body 8 side hits, the step with the electric conduit P is overcome, and the connecting member M is inwardly connected to the electric conduit P without being caught by the step. Can be smoothly guided and the wiring line C can be smoothly routed.

  In addition, the code | symbol attached | subjected in each of the means for solving said subject, and the item of the effect of an invention was attached | subjected in order to make easy reference with the part which shows each structure part described in drawing. The present invention is not limited to the structure and shape shown by these descriptions and reference numerals in the drawings.

It is a disassembled perspective view which shows one form for implementing this device. It is a partially cutaway side view after branch connection. FIG. 3 is a cross-sectional view taken along the arrow including part of the enlargement in FIG. 2. (A) thru | or (E) are the schematic diagrams explaining the operation | movement procedure which shows the structure of a branch pipeline, and the passage of branch wiring.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment for carrying out the invention will be described below with reference to the drawings. Reference numeral 1 shown in FIG. 1 stores wiring C for electric power, communication wires, cables and the like separately for each line. A joint device according to the present invention, which is assembled and attached to a removed portion that is cut and removed at a predetermined length at a branch portion of the wiring line C in the current conduit P, for example, a synthetic resin material, a concrete material, a recycled synthetic resin It is made of wood, wood or other suitable material. This joint device 1 is configured by a half-shaped lower half body 2 and an upper half body 5 that are assembled into a cylindrical shape by covering and covering the cut and removed portions from the up and down direction. That is, a lower half body 2 having a semicircular cross section that covers the lower half of the removed portion across the ends of the removed portion, and a half of the cross section that covers the upper half of the removed portion that also extends between the ends of the removed portion. The upper half body 5 which is circular and is connected to the branch pipe 8 connected to the branch pipe to be branched is integrally assembled.

  The inner diameter of the end of the lower half 2 is set to the outer diameter of the conduit P so that the lower half 2 is closely attached to the lower outer surface of the end of the removed portion of the conduit P. The lower half 2 shown in the figure has an expanded end 3 where the end of the lower half 2 is slightly larger in diameter than the conduit P, as required. It is to be formed. Further, as shown in the drawing, a soft elastic adjustment packing material 4 having a sheet shape with a predetermined thickness is interposed between the electric conduit P and the lower half 2, and the electric conduit P Care is taken not to create a gap between the lower half 2 and the lower half 2.

  Further, like the lower half 2, the upper half 5 has an end portion of the upper half 5 so that the upper half 5 is closely attached to the upper outer side surface of the end of the removed portion of the conduit P. The inner diameter substantially corresponds to the outer diameter of the electric conduit P, and the upper half 5 shown in the figure has a slightly larger diameter at each end of the upper half 5 than the electric conduit P. The expanded end portion 6 is formed as necessary. Further, as shown in the drawing, a soft elastic adjustment packing material 7 having a sheet shape with a predetermined thickness is interposed between the electric conduit P and the upper half 5, and the electric conduit P Care should be taken not to create a gap with the upper half 5.

  In this upper half 5, for example, a cylindrical branch pipe body 8 connected to a branch pipe branching from the electric line P is branched and connected in an integral manner, for example, at a central portion thereof. . The branch pipe 8 is connected at an acute angle side which is inclined as shown in the drawing by a triangular connecting piece 9 when the side face between the lower face of the branch pipe 8 and the upper face of the upper half body 5 is viewed from the side, The branch pipe 8 and the upper half 5 are integrated, and for example, the branch pipe 8 is not distorted, detached or the like due to an external impact or the like, so that the branch form can be maintained. .

  The branch pipe connected to the branch pipe 8 may be fitted into the branch pipe 8 or fitted so as to cover the branch pipe 8, and the connection mode is arbitrary, and the branch pipe configuration Correspondingly, the branch pipe 8 is selected.

  The lower half body 2 and the upper half body 5 are formed by the concave-convex fitting portion 10 structure formed so as to oppose and mesh with each other at the upper and lower edges when combined in a cylindrical shape by mutual joining. It is designed to be securely assembled without any positional deviation along the diametrical direction. As shown in FIGS. 1 and 3, the concave / convex fitting portion 10 is convex at the upward or downward edge of either the lower half 2 or the upper half 5, and downward or upward of the other half. The end edge is formed in a concave shape, and a protrusion 11 is formed that fits into a recess 15 formed at a substantially central position in a cross section at one end edge and at a substantially central position in a cross section at the other end edge. On the inner side of the protrusion 11, the inner stepped portion 12 that abuts the inner end surface portion 16, which is the inner portion of the other opposite edge, is provided on the outer side of the protrusion 11. The outer stepped portion 13 is in contact with the outer end surface portion 17 formed on the outer side of each. In addition, the outer stepped portion 13 at one edge is slightly deeper than the inner stepped portion 12 than the inner stepped portion 12, that is, the outer end surface portion 17 at the other end is compared with the inner end surface portion 16. It is separated so that it is in a slightly deeper position than the edge, and the height of the protrusion 11 or the recess 15 is made different so that the engagement by the uneven fitting is ensured.

  In the concave / convex fitting portion 10, the edge of the lower half 2 is illustrated as a concave structure and the edge of the upper half 5 is illustrated as a convex structure, but the edge of the lower half 2 is illustrated as a convex structure. The edge of the upper half 5 may have a concave structure, and either the lower half 2 or the upper half 5 may have either a concave structure or a convex structure. It is sufficient if the other edge facing this is a convex structure or a concave structure, and the fitting structure is not particularly limited. In addition, if necessary, it is also possible to fix more firmly by bonding between the uneven fitting portions 10 with an adhesive.

  Further, on the inner surface of the lower half 2, wirings inserted from the opening side of the branch pipe 8 in the upper half 5 so as to pass through the branch wiring C stored in the branch pipe. A step eliminating portion 20 for smoothly inserting and guiding the C wiring member M (messenger wire) is provided. This level difference eliminating portion 20 is formed between the inner side surface of the lower half 2 that is mounted so as to be covered from the outside of the electric conduit P and the end of the cut and removed portion of the electric conduit P. The step due to the tube wall is eliminated, and the wiring member M inserted from the branch conduit side can be smoothly inserted into the electric conduit P without being caught by the step.

  As shown in FIG. 1 and FIG. 2, the step eliminating portion 20 is located at the end position of the electric conduit P existing in front of the leading end of the connecting member M when inserting the connecting member M from the branch conduit side. It is arranged and formed on the inner side surface of the corresponding lower half body 2. That is, the guide inclined surface 21 that is curved so as to be arranged along the arc-shaped inner surface of the lower half 2 and gradually increases as it reaches the front side in the insertion direction, and the end surface of the conduit P The cross section is provided with a contact surface 22 that is substantially upright with respect to the inner surface of the lower half 2 so as to be in contact with the inner surface of the lower half body 2. The guide inclined surface 21 of the step eliminating portion 20 is substantially opposed to the inclined direction of the branch pipe 8 in the upper half 5, and the leading end of the wiring member M inserted from the opening side of the branch pipe 8 guides. Even if it hits the inclined surface 21, it can be inserted into the electric conduit P over this. The step eliminating portion 20 is fixed in advance in a state where the guide inclined surface 21 is directed to the other end portion side toward the one end portion side of the lower half body 2.

  Reference numeral 25 in the figure denotes a fastening band, which is wound around and fixed to the outside of the lower half 2 and the upper half 5 which are assembled by being fitted by the concave and convex fitting portion 10, and surrounds the fixing portion. It is fixed firmly with a buckle.

  Next, an example of the use of this will be described together with the work procedure shown in FIG. 4. For example, when a utility pole is moved, etc. The part is cut and removed in accordance with the length of the joint device 1 (see FIGS. 4A and 4B). Next, the lower half body 2 is applied with an adjustment packing material 4 so as to straddle between the ends of the cut and removed portion (see FIG. 4C), and the lower half body 2 is further provided with an uneven fitting portion. 10, the end edges are engaged with each other, and the upper half 5 is similarly mounted so as to straddle between the ends of the cut and removed portion, and is further surrounded and fixed by the fastening band 25 (see FIG. 4D). . Thereafter, the through member M is drawn out from the opening of the branch pipe body 8 and the wiring C connected to the end of the through member M reaching the predetermined position is drawn so as to pull back the through member M. What is necessary is just to let it be connected to the branch pipe body 8 site | part, and a predetermined wiring operation is completed by doing in this way (refer FIG.4 (E)).

  If necessary, the gap between the expanded end 3 in the lower half 2 and the expanded end 6 in the upper half 5 and the conduit P is filled with a suitable closing material.

C ... Wiring P ... Electric conduit M ... Connecting member 1 ... Joint device 2 ... Lower half 3 ... Expanded end 4 ... Adjusting packing material 5 ... Upper half 6 ... Expanding end 7 ... Adjusting packing material 8 ... Branch tube 9 ... Connecting piece 10 ... Concave and convex fitting part 11 ... Projection part 12 ... Inner step part 13 ... Outer step part 15 ... Recess 16 ... Inner end face part 17 ... Outer end face part 20 ... Step elimination part 21 ... Guiding slope 22 ... Abutting surface 25 ... Fastening band

Claims (5)

  The lower half of the semicircular cross section that covers the lower half of the removed portion across the ends of the removed portion that is cut and removed at a predetermined length at the branch portion in the electric conduit to be branched, A semicircular cross-sectional shape covering the upper half of the removed portion straddling between the ends, and a branch pipe connected to the branch pipe to be branched is connected, and the upper half assembled integrally with the lower half A pipe branching device for wiring branching, characterized in that it comprises a body.   The pipe branch coupling device for branching wiring according to claim 1, wherein an adjustment packing material is interposed at a joint mounting portion between the end of each of the lower half and the upper half and the end of the electric conduit.   The branch pipe is tilted with respect to the upper half body to be branched and connected integrally in a cylindrical shape, and the side between the lower face of the branch pipe body and the upper face of the upper half body is viewed from the side at the inclined acute angle side. The wiring branch pipe joint device according to claim 1, wherein the pipe branching device is connected by a triangular connecting piece.   The lower half and the upper half are assembled in a cylindrical shape by a concave / convex fitting portion structure formed so as to be engaged with each other so that the upper and lower edges are opposed to each other. The upper or lower half of the body or upper half has a convex shape at the upward or downward edge, and the other downward or upward edge has a concave shape. A protrusion that fits into a recess formed at a substantially central position in the cross section of the other edge, and on the inner side of the protrusion, an inner end face that is an inner portion of the opposite edge is formed. The inner stepped portion that contacts is provided with an outer stepped portion that contacts an outer end surface portion formed on the outer side of the concave portion of the other opposite edge on the outer side of the protrusion. 4. A pipe branch coupling device according to any one of claims 3 to 4.   A step elimination portion is arranged and formed at the end portion of the attachment portion with respect to the electric conduit in the lower half, and the step elimination portion is curved so as to be arranged along the arcuate inner surface of the lower half. The guide inclined surface that gradually increases as it reaches the front side in the insertion direction of the wiring member inserted from the branch pipe body, and the inner side surface of the lower half body to abut against the end surface of the conduit 2. A cross section having a substantially upright contact surface and having a substantially right triangle shape, and the guide inclined surface is substantially opposed to the inclined direction of the branch pipe in the upper half. 4. A pipe branch coupling device according to any one of claims 4 to 4.

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