JP2018198513A - Duct port waterproof device and seal member - Google Patents

Abstract

To provide a duct port waterproof device which not only forms a seal portion but has satisfactory followability to a cable and a seal member which is used for the same.SOLUTION: A duct port waterproof device 100 has: a seal member 10 which contacts at least one of a wall surface of a duct and a cable in a state in which a cable 70 is laid in the duct; a seal member 20 which is adjacently arranged to the seal member 10 in an axial direction z of the duct to contact the cable; and a pressing part 60 which gives pressing force from both ends of the seal member 10 and the seal member 20 aligned in the axial direction of the duct to the seal member 10 and the seal member 20. The seal member 10 and the seal member 20 are provided with axial seal contact parts 17, 18, 27 and 28 which contact each other in an axial direction of the duct by pressing force using the pressing part, and the contact surface of which is formed by inclining from a surface orthogonal to the axial direction of the duct.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a conduit opening waterproof device and a seal member.

  Cables used for supplying electric power and the like are often laid underground together with pipelines. Therefore, a waterproof device is provided to prevent underground water from entering the cable laid underground. A conventionally used waterproof device is a technique in which a seal member such as rubber is divided and arranged in a space between a pipe and a cable at a certain position in the axial direction of the pipe, and tightened with a bolt and a nut from the axial direction. (See Patent Document 1).

Japanese Patent Laid-Open No. 9-51621

  However, the cable laid in the ground is in a state where the kinked state is along the pipe line, and there is a problem that the cable is damaged when the pressure is excessively applied by the sealing rubber as described above, which is not preferable. .

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a conduit port waterproof device that not only forms a seal portion but also has good followability to a cable, and a seal member used therefor.

  The conduit port waterproof device according to an aspect of the present invention that achieves the above object includes a first seal member, a second seal member, and a pressing portion. The first seal member and the second seal member are arranged side by side in the axial direction of the pipeline in a state where the cable is laid in the pipeline. The pressing portion applies a pressing force to the first seal member and the second seal member from both ends of the first seal member and the second seal member arranged in the axial direction of the pipe line. The first seal member includes at least a contact portion with the wall surface of the pipeline, and the second seal member includes a contact portion with the cable. The first seal member and the second seal member come into contact with each other in the axial direction of the pipeline by pressing using the pressing portion, and the contact portion is formed so as to be inclined from a plane orthogonal to the axial direction of the pipeline. Prepare.

  Another embodiment of the present invention is used in the above-described conduit opening waterproofing device, and is in contact with each other in the axial direction of the pipeline by pressing using the pressing portion, and the contact surface is inclined from a plane orthogonal to the axial direction of the pipeline. It is a 1st seal member or a 2nd seal member provided with the contact part formed in this way.

  Since the conduit port waterproof device according to the present invention and the first seal member or the second seal member used therefor are configured as described above, not only the seal portion is formed but also the followability to the cable is good. can do.

1 is a perspective view showing a conduit port waterproof device according to an embodiment of the present invention. It is a front view of FIG. It is a rear view of FIG. FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. It is a perspective view which shows a 1st seal member. FIG. 6 is a front view of FIG. 5. FIG. 6 is a bottom view of FIG. 5. It is a perspective view which shows a 2nd sealing member. It is a front view of FIG. It is a top view of FIG. It is a perspective view which shows another sealing member. It is a front view of FIG. It is a side view of FIG. It is a perspective view which shows another sealing member. It is a front view of FIG. It is a side view of FIG. It is a perspective view which shows a 3rd seal member. It is a front view of FIG. It is sectional drawing which follows the 19-19 line | wire of FIG. It is a perspective view which shows the 1st flange member which comprises a press part. It is a front view of FIG. It is a perspective view which shows the 2nd flange member which comprises a press part. FIG. 23 is a front view of FIG. 22. It is a perspective view which shows the volt | bolt which comprises a press part. It is a perspective view which shows the bolt receiving member which comprises a press part. It is a perspective view which shows the nut which comprises a press part. It is a perspective view which shows the modification of a 1st seal member. It is a front view of FIG. It is a perspective view from the direction different from FIG. 27 (direction looked up from the downward direction). It is sectional drawing which shows the modification of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In addition, the following description does not limit the technical scope and terms used in the claims. In addition, the dimensional ratios in the drawings are exaggerated for convenience of explanation, and may differ from actual ratios. In the following description, an orthogonal coordinate system and a cylindrical coordinate system are illustrated in the drawings for the description using the drawings. The z direction of the Cartesian coordinate system corresponds to the axial direction of the tube. R in the cylindrical coordinate system corresponds to the radial direction or radial direction of the tube. Θ in the cylindrical coordinate system corresponds to the circumferential direction or the angular direction of the tube.

  FIGS. 1 to 26 are views for explaining a conduit port waterproof device according to an embodiment of the present invention. The conduit port waterproof device 100 according to the present embodiment includes seal members 10, 20, 30, 40, 50, a pressing part 60, a cable 70, and a pipe 80. The pipe opening waterproof device 100 is installed at the entrance of a pipe and the like, and waterproofs the pipe opening. Details will be described below.

(First seal member)
The seal members 10, 20, 30, 40, 50 are assembled as shown in FIG. 4 to prevent liquid such as water from entering the inside of the pipe 80. The seal member 10 corresponds to a first seal member arranged side by side with the seal member 20 in a state where the cable 70 is laid in the pipe line. In this embodiment, the seal member 10 is at least in contact with the wall surface of the pipe line in the radial direction r. As shown in FIGS. 5 to 7, the seal member 10 includes a pipe contact portion 11, cable contact portions 12 and 13, surface direction seal contact portions 14 to 16, axial seal contact portions 17 and 18, and bolt insertion. Part 19.

  The seal member 10 is configured to have a substantially cylindrical shape or a column divided into a predetermined number in the angular direction. In this embodiment, the sealing member 10 is divided into three in the angular direction so that the cross section has a substantially arc shape. The pipe line contact portion 11 corresponds to a portion on the outer side in the radial direction r in the arc shape. The pipe line contact portion 11 has a curved surface shape in which an arc shape is extruded in the axial direction z, and comes into contact with the inner wall surface of the pipe 80 in the assembled state.

  As shown in FIG. 7, a pipe contact portion 11 is formed outside the seal member 10 in the radial direction r, and cable contact portions 12 and 13 and planar seal contact portions 14 to 16 are inside the radial direction r. Is formed. The cable contact parts 12 and 13 and the surface direction seal contact part 14 are provided with a curved surface shape in which three arcs are extruded in the axial direction z as shown in FIG. The surface direction seal contact part 14 is located between the cable contact parts 12 and 13 in this embodiment. The surface-direction seal contact portions 15 and 16 are configured by a planar shape and contact the adjacent seal member 10 in the circumferential direction θ. However, the shape and arrangement of each component are not limited to the above as long as liquid can be prevented from entering the cable 70.

  The axial seal contact portions 17 and 18 are in contact with any of the axial seal contact portions 27 and 28 of the adjacent seal member 20 in the axial direction z of the pipe line by pressing using the pressing portion 60. As shown in FIG. 5 and the like, the axial seal contact portions 17 and 18 are formed so that the contact surfaces of the seal member 20 with the axial seal contact portions 27 and 28 are inclined from the plane orthogonal to the axial direction z of the pipe line. It corresponds to the contact part made.

  As shown in FIG. 5, the axial seal contact portions 17 and 18 are configured to have a shape in which the bottom surface of the divided column body is inclined, and are in contact with the seal members 20 and 30 arranged side by side in the axial direction z. To do. As shown in FIGS. 5 and 7, the axial seal contact portions 17 and 18 are connected to the cable contact portions 12 and 13 located inward of the radial direction r from the conduit contact portion 11 located outward of the radial direction r. It is formed so as to be inclined so as to be recessed toward the surface seal contact portion 14. Therefore, the seal member 10 is formed so as to taper inward in the radial direction r as shown in FIG.

  The bolt insertion portion 19 is formed by inserting the axial seal contact portions 17 and 18 along the axial direction z of the seal member 10. The bolt insertion part 19 corresponds to an insertion hole through which the bolt 63 constituting the pressing part 60 is inserted.

(Second seal member)
The seal member 20 corresponds to a second seal member that is arranged side by side with the seal member 10 in a state where the cable 70 is laid in the pipeline as shown in FIGS. The seal member 20 contacts at least the cable 70 in the radial direction r. As shown in FIGS. 8 to 10, the seal member 20 includes an outer peripheral portion 21, cable contact portions 22 and 23, surface direction seal contact portions 24 to 26, axial direction seal contact portions 27 and 28, and bolt insertion portions. 29.

  The outer peripheral portion 21 is a portion located on the outer side of the radial direction r in the seal member 20 and, like the seal member 10, is configured by a curved surface shape such that an arc shape is extruded in the axial direction z. The outer peripheral portion 21 has a smaller width in the axial direction z than the cable contact portions 22 and 23 and the surface-direction seal contact portions 24 to 26, and is formed in a substantially linear shape in this embodiment. However, the shape of the outer peripheral portion 21 is not limited to the above as long as the seal portion can be formed together with the seal members 10, 30, 40, and 50.

  The cable contact portions 22 and 23 and the surface direction seal contact portion 24 are configured in a curved shape that connects three arcs in the same manner as the seal member 10 and pushes them in the axial direction z. The surface-direction seal contact portion 24 is located between the cable contact portions 22 and 23 similarly to the seal member 10. The surface-direction seal contact portions 25 and 26 are configured in a planar shape like the seal member 10 and are disposed outward from the cable contact portions 22 and 23 in the circumferential direction θ. The surface-direction seal contact portions 25 and 26 are in contact with the adjacent seal member 20 in the circumferential direction θ in the same manner as the seal member 10.

  Similarly to the axial seal contact portions 17 and 18, the axial seal contact portions 27 and 28 come into contact with any of the axial seal contact portions 17 and 18 in the axial direction z of the pipeline by pressing using the pressing portion 60. The axial seal contact portions 27 and 28 correspond to contact portions formed so that the contact surfaces with the axial seal contact portions 17 and 18 are inclined from a plane orthogonal to the axial direction z of the pipe line.

  As shown in FIGS. 8 and 10, the axial seal contact portions 27 and 28 are formed so that the width in the axial direction z decreases from the inner side to the outer side in the radial direction r in contrast to the seal member 10.

  The bolt insertion portion 29 is formed so as to be inserted along the axial direction z in the axial seal contact portions 27 and 28 in the same manner as the seal member 10. The bolt insertion portion 29 corresponds to an insertion hole through which the bolt 63 constituting the pressing portion 60 is inserted, similarly to the seal member 10.

  As shown in FIG. 4, the seal member 30 is a member that is disposed adjacent to the seal members 40 that are disposed at both ends in the axial direction z of the conduit port waterproof device 100 in the present embodiment. As shown in FIGS. 11 to 13, the seal member 30 includes a pipe line contact portion 31, cable contact portions 32 and 33, surface seal contact portions 34 to 36, axial seal contact portions 37 and 38, bolts And an insertion part 39.

  The pipe contact portion 31 is a portion formed in a curved shape that comes into contact with the pipe 80 in the same manner as the pipe contact portion 11 of the seal member 10. The cable contact portions 32 and 33 and the surface-direction seal contact portion 34 are configured by a curved surface shape in which three arcs are extruded in the axial direction z similarly to the seal member 10, and the surface-direction seal contact portion 34 is the cable contact portions 32 and 33. It is arranged between. The surface-direction seal contact portions 35 and 36 are configured in a planar shape similarly to the seal member 10, and are disposed outward from the cable contact portions 32 and 33 in the circumferential direction θ and adjacent to the seal member 30 adjacent in the circumferential direction θ. Contact.

  The axial seal contact portions 37 and 38 are portions that contact the adjacent seal members 10 and 40 in the axial direction z. As shown in FIG. 13, the axial seal contact portion 37 is formed such that the center portion of the surface protrudes one step from the outer peripheral edge. The pipe line contact portion 31 corresponding to the side surface of the axial seal contact portion 37 is configured to be inclined inward in the radial direction r toward the left end portion in the axial direction z as shown in FIG. On the other hand, as shown in FIG. 13, the axial seal contact portion 38 has a larger gradient in the radial direction r than the conduit contact portion 31 on the side surface of the axial seal contact portion 37 toward the right end in the axial direction z. It is comprised so that it may incline toward the direction.

  The bolt insertion portion 39 is formed by being inserted along the axial direction z in the axial seal contact portions 37 and 38 in the same manner as the seal member 10 and the like. The bolt insertion portion 39 corresponds to an insertion hole through which the bolt 63 constituting the pressing portion 60 is inserted, like the seal member 10.

  The seal member 40 is arrange | positioned at the both ends of the axial direction z in the pipe port waterproofing apparatus 100, as shown in FIG. As shown in FIGS. 14 to 16, the seal member 40 includes a pipe line contact portion 41, cable contact portions 42 and 43, surface direction seal contact portions 44 to 46, an axial direction seal contact portion 47, and a flange contact portion. 48 and a bolt insertion portion 49.

  The pipe line contact portion 41 is in contact with the pipe 80 at the outer side in the radial direction r similarly to the seal member 10. The cable contact portions 42 and 43 and the surface direction seal contact portion 44 are formed in a curved surface shape in which three arcs are pushed out in the axial direction z, similarly to the seal member 10. The surface-direction seal contact portion 44 is disposed between the cable contact portion 42 and the cable contact portion 43 in the same manner as the seal member 10. The surface-direction seal contact portions 45 and 46 are formed in a planar shape, and are disposed outward from the cable contact portions 42 and 43 in the circumferential direction θ.

  The axial seal contact portion 47 contacts the adjacent seal member 30 in the axial direction z. The axial seal contact portion 47 is formed in a concave shape tapered from the edge portion 47a in contrast to the pipe line contact portion 31 corresponding to the side surface of the axial seal contact portion 37 in the seal member 30. 30 is fitted. By configuring the axial seal contact portion 47 in this manner, the pressure resistance in the assembled state and the durability against pressure resistance can be improved, and differences in dimensions or materials can be dealt with. The flange contact portion 48 is provided on the side opposite to the axial seal contact portion 47 in the axial direction z of the seal member 40. The flange contact portion 48 is formed in a concave shape like the axial seal contact portion 47, but the side surface of the concave shape is not tapered and is configured to be substantially orthogonal to the bottom surface of the concave shape. The flange contact portion 48 contacts the first flange member 61 or the second flange member 62 of the pressing portion 60 in the assembled state. The bottom surfaces in the axial direction z of the axial seal contact portion 47 and the flange contact portion 48 are orthogonal to the axial direction z in the present embodiment, but the bottom surfaces may not be orthogonal to the axial direction z as long as the cable 70 can be protected. .

  The bolt insertion portion 49 is formed so as to be inserted along the axial direction z from the axial seal contact portion 47 to the flange contact portion 48 in the same manner as the seal member 10 and the like. The bolt insertion portion 49 corresponds to an insertion hole through which the bolt 63 constituting the pressing portion 60 is inserted, like the seal member 10.

(Third seal member)
The seal member 50 corresponds to a third seal member that is disposed inward in the radial direction r relative to the seal members 10 and 20 and contacts the cable 70 in the radial direction r. As shown in FIGS. 17 to 19, the seal member 50 includes wire attachment members 51 and 52, a wire 53, and an elastic member 54.

  The wire attachment members 51 and 52 correspond to attachment members arranged at both ends in the axial direction z in the seal member 50 as shown in FIG. The wire attachment members 51 and 52 are formed in a plate shape, but the shape is not limited to this as long as the wire 53 can be attached and an axial force can be applied to the elastic member 54.

  The wire 53 is connected to the wire attachment members 51 and 52. The wire 53 corresponds to a core member having flexibility that suppresses deformation that the seal member 50 tends to extend in the axial direction z when the seal member 50 receives a force from the radial direction r. The wire 53 is joined to the wire attachment members 51 and 52 at the center of the wire attachment members 51 and 52, and is configured to be able to be flexibly deformed with respect to an external force from the cable 70. The wire 53 and the wire attachment members 51 and 52 are embedded in the elastic member 54.

  The elastic member 54 is made of a material such as EPDM (ethylene propylene diene rubber copolymer) similarly to the seal members 10, 20, 30, 40, 50, and the seal members 10, 20, 30, 40, 50 together with the wires 53. It is configured so that the hardness becomes softer than that. Therefore, the seal member 50 can be flexibly deformed along the shape of the cable 70 even when the cable 70 is inserted and deformed so as not to extend linearly in the axial direction z. The seal member 20 is a hard rubber having a hardness of about A60 (JIS K6253), and the seal members 10, 30, and 50 are low-hardness rubbers of about A30. However, the seal member 20 is an example, and is not limited thereto. .

(Pressing part)
The pressing unit 60 applies a pressing force to the seal members 10 and 20 from both ends of the seal members 10 and 20 arranged in the axial direction z of the pipe line. As shown in FIGS. 20 to 26, the pressing portion 60 includes a first flange member 61, a second flange member 62, a bolt 63, a bolt receiving member 64, and a nut 65.

  The 1st flange member 61 and the 2nd flange member 62 are arrange | positioned at the both ends in the axial direction z of the pipe port waterproofing apparatus 100, and compress the seal members 10, 20, 30, 40, 50 to the axial direction z. As shown in FIGS. 20 and 21, the first flange member 61 has a recess 61a, a bolt insertion hole 61b, and hooking portions 61c and 61d. The first flange member 61 is formed slightly smaller than the seal member 40 when viewed from the front, and is accommodated in the concave portion of the flange contact portion 48 of the seal member 40. The recess 61a is a portion where the bolt head 63a or the bolt receiving member 64 of the bolt 63 is disposed, and the contact surface of the bolt 63 with the bolt head 63a or the bolt receiving member 64 is formed in a hemispherical shape.

  The bolt insertion hole 61b is formed to be continuous with the recess 61a in the axial direction z and is formed to allow the bolt 63 to pass therethrough. The hook portions 61c and 61d are formed in order to prevent the first flange member 61 from entering too much in the axial direction z. In the present embodiment, the hooks 61c and 61d are configured in a substantially fan shape, but the number of hooks is not limited to the above, and the shape may not be a fan shape, and may be formed from a polygon or the like. Good.

  As shown in FIGS. 22 and 23, the second flange member 62 has a recess 62a and a bolt insertion hole 62b. Since the bolt insertion hole 62b is the same as the bolt insertion hole 61b of the first flange member 61, the description thereof is omitted. Similar to the first flange member 61, the recess 62a is not only formed by cutting the contact surface with the bolt 63 into a hemispherical shape, but also having two notches 62c in the circumferential direction θ from there as shown in FIG. 62d is formed. The notches 62c and 62d accommodate rotation stoppers 63c and 63d of a bolt 63 which will be described later, thereby functioning as rotation stoppers when the nut 65 is tightened. Further, the inner side surface 61e of the first flange member 61 and the inner side surface 62e of the second flange member 62 are more assembled than the inner side surfaces 51a and 52a of the wire attachment members 51 and 52 of the seal member 50 in the assembled state as shown in FIG. It is located inward in the axial direction z.

  The bolt 63 is inserted into the bolt insertion portions 19, 29, 39, and 49 of the seal members 10, 20, 30, and 40. As shown in FIG. 24, the bolt 63 includes a bolt head 63a, a male screw 63b, and rotation stoppers 63c and 63d. The bolt head 63a is large enough to be accommodated in the recess 62a of the second flange member 62, and the contact surfaces of the flange members 61, 62 with the recesses 61a, 62a are formed into a hemispherical surface. The rotation stoppers 63c and 63d are formed on the hemispherical surface of the bolt head 63a. Function.

  The notches 62c and 62d of the second flange member 62 are formed with a margin (gap) with respect to the rotation stoppers 63c and 63d. Therefore, even when the cable 70 applies a certain amount of external force to the seal members 10, 20, 30, 40, 50 when the bolt 63 is inserted into the bolt insertion portion 49 of the seal member 40, the bolt 63 is advanced in the axial direction z. Can do. Therefore, assembly workability can be improved.

  As shown in FIG. 25, the bolt receiving member 64 has a flange contact portion 64a and a bolt insertion hole 64b. As with the bolt head 63a of the bolt 63, the flange contact portion 64a has a hemispherical contact surface with the flange member 61. The bolt receiving member 64 is formed in a substantially hemispherical shape, and the bolt insertion hole 64b is formed through the axial direction z at the time of assembly.

  The first flange member 61, the second flange member 62, the bolt 63, the bolt receiving member 64 and the nut 65 are made of stainless steel such as SUS, and the surface is plated. It is not limited to this.

  Next, a method for assembling the conduit port waterproof device according to the present embodiment will be described. 2 and 3, the seal members 10, 20, 30, 40, 50 and the pressing portion 60 have the same configuration at intervals of approximately 120 degrees in the circumferential direction θ.

  First, the second flange member 62 is disposed inside the tube 80 with the cable 70 protruding from the tip of the tube 80. Next, the bolt 63 is inserted into the second flange member 62 in a state where the positions of the stoppers 63c and 63d of the bolt 63 are aligned with the notches 62c and 62d of the three second flange members 62, respectively.

  Then, as shown in FIG. 4, the bolt insertion portions 19, 29, 39, 49 of the seal members 10, 20, 30, 40, 50 are inserted into the bolt 63, and the seal members 10, 20, 30, 40, 50 are pivoted. Arranged in the direction z.

  Next, the second flange member 62 is fitted into the flange contact portion 48 of the seal member 40. Similarly, the first flange member 61 is disposed inside the tube 80 on the side opposite to the second flange member 62 in the axial direction z, and the first flange member 61 is fitted to the flange contact portion 48.

  Next, the bolt receiving member 64 is installed in the recess 61 a of the first flange member 61, and the bolt 63 and the nut 65 are temporarily tightened. This is similarly performed in the remaining two pressing portions 60 in the circumferential direction θ. Next, the bolt 63 and the nut 65 are finally tightened at the three pressing portions 60 in the circumferential direction θ to complete the assembly. By fastening the bolt 63 with the nut 65 in this way, the seal members 10, 20, 30, and 40 positioned outward in the radial direction r are compressed in the axial direction z and spread in the radial direction r. Further, with the deformation of the seal members 10, 20, 30, and 40, the seal member 50 positioned inward in the radial direction r is compressed in the axial direction z and tends to spread in the radial direction r. As a result, the seal members 10, 20, 30, and 40 are deformed so as to spread outward in the radial direction r, and are deformed so as to spread inward in the radial direction r after being deformed outward in the radial direction r. .

  As described above, the conduit port waterproof device 100 according to the present embodiment includes the seal member 10, the seal member 20, and the pressing portion 60. The seal members 10 and 20 are arranged side by side in the axial direction z of the pipeline in a state where the cable 70 is laid in the pipeline. The pressing unit 60 applies a pressing force to the seal members 10 and 20 from both ends of the seal members 10 and 20 arranged in the axial direction z of the pipe line. The seal member 10 includes a pipe line contact portion 11 corresponding to at least a contact portion with the wall surface of the pipe line. The seal member 20 includes cable contact portions 22 and 23 that are contact portions with the cable 70. The seal member 10 and the seal member 20 come into contact with each other in the axial direction z of the pipe line by pressing using the pressing part 60, and the axial seal contact part 17 formed so that the contact surface is inclined from the axial direction z of the pipe line. , 18, 27, 28.

  Thus, since the axial seal contact portions 17 and 18 of the seal member 10 and the axial seal contact portions 27 and 28 of the seal member 20 are inclined, the force in the axial direction z by the pressing portion 60 is in the radial direction r. Not only in the axial direction z but also in the axial direction z. Therefore, it is possible to prevent excessive pressure from being applied to the cable 70 while preventing water or the like from entering the cable 70 adjacent to the seal members 10 and 20 in the radial direction r. Therefore, not only can the sealing part be formed, but also the followability to the cable 70 can be improved.

  Further, the conduit port waterproof device 100 includes a seal member 50 that is disposed inward in the radial direction r with respect to the seal members 10 and 20 and is in contact with the cable 70. The seal member 50 includes wire attachment members 51 and 52 and a wire 53. The wire attachment members 51 and 52 are arrange | positioned at the both ends of the axial direction z of a pipe line. The wire 53 is connected to the wire attachment members 51 and 52, and suppresses deformation that tends to extend in the axial direction z when a force is applied from the radial direction r to the seal member 50, and has flexibility.

  By configuring in this way, it is possible to prevent the deformation of the seal member 50 from escaping in the axial direction z when the pressing force is applied in the axial direction z by the pressing portion 60 and to seal the cable 70.

  The pressing portion 60 has flange members 61 and 62. The flange members 61 and 62 are disposed at both ends of the seal members 10 and 20 arranged in the axial direction z of the pipe line. The flange member 61 is provided with a recess 61 a for installing the head of the bolt receiving member 64, and the flange member 62 is provided with a recess 62 a for installing the head of the bolt 63. The bolt head 63a corresponding to the head of the bolt 63, the flange contact portion 64a of the bolt receiving member 64, and the concave portions 61a and 62a of the flange members 61 and 62 are formed in a spherical shape.

  With this configuration, even if the bolt 63 and the bolt receiving member 64 are inserted into the bolt insertion holes 61b and 62b of the flange members 61 and 62 in a state where the bolt 63 and the bolt receiving member 64 are slightly inclined with respect to the axial direction z, the bolt 63 and the bolt receiving member The 64 postures can be easily adjusted to a state along the axial direction z. If the bolts 63 and the like are forcibly assembled in an inclined state with respect to the axial direction z, excessive pressure can be applied to the cable 70. Therefore, by configuring as described above, excessive pressure is applied to the cable 70. Can be prevented.

  In addition, this invention is not limited only to embodiment mentioned above, A various change is possible in a claim. 27 to 29 are perspective views or front views showing modified examples of the first seal member. In addition, the same code | symbol is attached to the structure same as the sealing member 10, and description of a corresponding structure is abbreviate | omitted.

  In the above description, the embodiment has been described in which the seal member 10 is formed so that the axial seal contact portions 17 and 18 protrude in the axial direction z from the inside to the outside in the radial direction r. In addition to the above, as shown in FIGS. 28 and 29, the seal member 10a is configured to include a notch 14a formed inward in the radial direction r from the bolt insertion portion 19 of the axial seal contact portions 17 and 18. May be.

  With this configuration, when the pressing force is applied in the axial direction z by the pressing portion 60, the expansion deformation that protrudes outward in the radial direction r from the sealing member 10 by the notch 14a is suppressed. Therefore, excessive application of pressure to the cable 70 adjacent to the seal member 10 in the radial direction r can be further suppressed.

  Further, for example, a fluorine-based lubricant or molybdenum disulfide may be applied to the contact surface between the seal member 10 and the seal member 20 in the axial direction z as a lubricant for reducing the friction coefficient on the surface. By comprising in this way, the familiarity of adjacent seal members becomes good, and it can prevent that the pressure is applied to the cable 70 more than necessary due to the high friction coefficient of the contact surface.

  Further, the embodiment has been described in which the seal members 10, 20, 30, 40, and 50 are configured at the same angle (120 degrees) in the circumferential direction θ. However, if the seal portion can be formed in the pipe line, the circumferential direction θ The central angle of the component parts to be divided may be different.

  In addition, the first flange member 61 has been described as including the hook portions 61c and 61d. However, the first flange member 61 is not limited thereto. If the seal members 10, 20, 30, 40, and 50 can be compressed in the axial direction z, the first flange member 61 includes the hook portions. It does not have to be. FIG. 30 is a cross-sectional view showing a modification of the seal members 30 and 50. Although the sealing member 30 demonstrated embodiment provided with the axial direction seal contact part 37 and the axial direction seal contact part 38, it is not limited to this. In addition to the above, the seal member 30 may be divided into a seal member 30a corresponding to the axial seal contact portion 37 and a seal member 30b corresponding to the axial seal contact portion 38 as shown in FIG.

  Further, the inner side surface 61e of the first flange member 61 and the inner side surface 62e of the second flange member 62 are more assembled than the inner side surfaces 51a and 52a of the wire attachment members 51 and 52 of the seal member 50 in the assembled state as shown in FIG. It has been described that it is located inward in the axial direction z. However, as shown in FIG. 30, the inner side surface 51c of the wire attachment member 51b and the inner side surface 52c of the wire attachment member 52 are in an assembled state with respect to the inner side surface 61e of the first flange member 61 and the second flange member 62 in the axial direction z. The inner surface 62e may be positioned inward. In other words, the lengths in the axial direction z of the portions of the wire attachment members 51 and 52 that are close to the seal member 40 may be formed longer than the lengths of the flange members 61 and 62 in the axial direction z.

  The seal member is deformed into a complicated shape by assembling bolts and nuts, and the outer surface in the axial direction z enters the inner side of the member positioned inward in the radial direction r such as the seal member 50. In some cases, the seal member 40 positioned outward in the radial direction r moves inward in the radial direction r to apply extra pressure to the cable 70.

  By configuring as described above, the sealing member 40 located outward in the radial direction r in the assembled state is prevented from moving inward in the radial direction r, so that extra pressure is applied to the cable 70. The imparting can be reduced or suppressed. The shape of the wire attachment member is not limited to that shown in FIG. 30 as long as the movement of the seal member 40 in the radial direction r can be regulated. For example, in addition to the above, the seal member 50 is in a state where plate-like metal members such as SUS are exposed outwardly in the axial direction z of the elastic member 54 instead of the wire attachment members 51 and 52 at both ends in the axial direction z. You may arrange.

10, 10a (first) seal member,
14a Notches 17, 18 (Axial seal) contact part,
19 Bolt insertion part (insertion hole),
100 conduit opening waterproofing device,
20 (second) sealing member,
27, 28 (Axial seal) contact part,
29 Bolt insertion part (insertion hole),
30, 40 sealing member,
50 (third) sealing member,
51, 52 (wire) attachment member,
53 wire (core member),
60 pressing part,
61 (first) flange member,
62 (second) flange member,
63 volts,
63a bolt head,
70 cable,
80 tubes.

Claims (7)

A first seal member and a second seal member arranged side by side in the axial direction of the pipeline in a state where the cable is laid in the pipeline;
A pressing portion for applying a pressing force to the first seal member and the second seal member from both ends of the first seal member and the second seal member arranged in the axial direction of the pipe line,
The first seal member includes at least a contact portion with the wall surface of the pipe line, and the second seal member includes at least a contact portion with the cable,
The first seal member and the second seal member are in contact with each other in the axial direction of the pipe line by pressing using the pressing portion, and a contact surface is inclined from a plane orthogonal to the axial direction of the pipe line. A conduit opening waterproofing device, each comprising a contact portion formed in the manner described above. A third seal member disposed radially inward of the first seal member and the second seal member and in contact with the cable;
The third seal member is connected to the attachment members disposed at both ends in the axial direction of the conduit, and is connected to the attachment member, and when the third seal member receives a force from the radial direction, The conduit port waterproof device according to claim 1, comprising a flexible core-like member that suppresses deformation to be extended. The pressing portion includes a bolt that passes through the first seal member and the second seal member,
The first seal member and the second seal member include an insertion hole through which the bolt is inserted,
The conduit port waterproof device according to claim 1 or 2, wherein the first seal member further includes a cut formed in a radially inner portion from the insertion hole.   The conduit port according to any one of claims 1 to 3, wherein a lubricant that reduces a friction coefficient of the surface is applied to the first seal member and the second seal member on the surface of the contact surface. Waterproof device. The pressing portion includes a recess that is disposed at one end of both ends of the first seal member and the second seal member that are arranged in the axial direction of the pipe and that installs the bolt head. A flange member,
The pipe port waterproof device according to claim 3, wherein the head portion of the bolt and the concave portion of the flange member are formed in a spherical shape.   It is used for the pipe mouth waterproof device according to any one of claims 1 to 5, and is contacted in the axial direction of the pipe line by pressing using the pressing portion, and a contact surface is the axial direction of the pipe line. The 1st seal member provided with the contact part formed inclining from the surface orthogonal to.     It is used for the pipe mouth waterproof device according to any one of claims 1 to 5, and is contacted in the axial direction of the pipe line by pressing using the pressing portion, and a contact surface is the axial direction of the pipe line. The 2nd seal member provided with the contact part formed inclining from the surface orthogonal to.