JP4609859B2 - Corrugated pipe with pipe joint and corrugated pipe unit with pipe joint - Google Patents

Description

  The present invention relates to a corrugated pipe with a pipe joint used for protecting cables when buried in the ground, and a corrugated pipe unit with a pipe joint obtained by bundling a plurality of corrugated pipes with this pipe joint. It is.

Conventionally, for example, when a communication cable is buried in the ground, the cable is inserted into a corrugated tube made of plastic in order to protect the cable.
The reason for using the corrugated tube is that the corrugated tube has excellent lateral pressure characteristics, excellent flexibility, is not easily crushed even when buried in the ground, and is easy to bypass when there is an obstacle. It is also possible to cope with ground fluctuations such as land subsidence.

By the way, when connecting corrugated pipes to be installed, prepare a split pipe joint that has a wave on the inner surface that matches the wave shape of the ends of the two corrugated pipes to be connected. Covering the end of the corrugated pipe connecting this pipe joint, hook hook provided on one of the two pipe joints hooked to the lock provided on the other pipe joint (Patent Document 1).
Further, as disclosed in FIG. 4 of Patent Document 2, the end of one corrugated pipe is screwed into a pipe joint having a corrugated shape corresponding to the wave of the corrugated pipe on the inner surface, and then the other end of this pipe joint. There is also a type in which the end of the corrugated tube of the connection partner is screwed into the end of the connector.

JP 7-167362 A JP 2002-333086 A

By the way, in recent years, instead of laying the corrugated pipes one by one, a method of collecting and bundling a plurality of pipes, that is, unitizing them, and burying them in the ground has already been studied. It has been put into practical use.
The reason for this is that the assembly of multiple corrugated tubes into a unit makes it easier to lay and reduce costs, and the side pressure strength and crushing strength after embedding are higher than those embedded one by one. Because it becomes high.
When unitizing a plurality of corrugated tubes in this way, the corrugated tubes themselves are rectangular in cross section, and the corrugated tubes adjacent to each other in the vertical and horizontal directions are bound to each other by bringing one side of the rectangular shape into contact with each other. The rectangular corrugated pipes are arranged in a compact manner by providing rectangular pillow parts at predetermined intervals in the longitudinal direction of the corrugated pipes and bringing the rectangular sides of the pillow parts into contact with each other and binding them together. Ingenuity has also been made.

By the way, when connecting the units of the corrugated tubes assembled in a compact arrangement of the corrugated tubes in this way, there is a work space for connecting the corrugated tubes around each corrugated tube. There is almost no actual situation. More specifically, there are many cases where there is no space for even a connecting operator to enter between the corrugated tubes constituting the unit.
Therefore, there is a problem that the pipe joint having the shape disclosed in Patent Document 1 and Patent Document 2 described above cannot cope with this type of corrugated pipe unit.

  In view of the above problems, the object of the present invention is to connect a plurality of corrugated tubes as well as to connect the corrugated tubes embedded in each one, even if there is not much connection space. It is an object of the present invention to provide a corrugated pipe with a pipe joint that can be applied to connection between units of the attached pipe.

In order to achieve the above object, a corrugated pipe with a pipe joint according to claim 1 of the present invention has a pipe joint male part at one end and a pipe joint female part fitted to the pipe joint male part at the other end. A corrugated tube with a joint,
Furthermore, it has a pillow part provided near the tip of the pillow part and pipe joint male part provided at a predetermined interval in the corrugated pipe,
The male part of the pipe joint has a locking part provided at the front end part in the outer peripheral direction, and a ring-shaped waterproof packing provided at a rear position separated from the locking part by a predetermined distance in the pipe axis direction. And a waterproof packing storage portion for storing the waterproof packing,
The pipe joint female part is inserted into a waterproof packing pressing part that presses the waterproof packing at its tip part, and the pipe joint male part on the connection partner side is inserted behind the waterproof packing pressing part, A retaining ring having a retaining claw for retaining the retaining part and preventing the male part of the tubular joint from coming off from the female part of the tubular joint, and a plurality of parallel facing surfaces for housing the retaining ring. The outer shape has an even polygonal retaining ring storage part ,
Further, the retaining ring is housed in the retaining ring housing portion so as to be movable in the tube axis direction. The retaining ring has a plurality of stoppers on the outer peripheral portion, and the retaining ring is the retaining ring. The stopper prevents the retaining ring from coming out of the retaining ring housing part when the stopper hits the wall of the retaining ring housing part, and at the same time, the retaining ring housing part The outer shape is substantially the same shape and the same size as the pillow portion provided at a predetermined interval in the longitudinal direction of the corrugated tube and the pillow portion provided in the vicinity of the distal end of the pipe joint male portion, and the retaining ring storage portion is the pillow portion. it is characterized in that that can be used as.

  According to the corrugated pipe with a pipe joint according to claim 1, the male part of the pipe joint provided at the end of one corrugated pipe with the pipe joint is connected to the wave with the pipe joint on the connection partner side. By simply inserting it into the female part of the pipe joint formed at the end of the attached pipe, both can be connected with one touch. Therefore, the connection work can be easily performed even if there is almost no work space around the corrugated pipe with the pipe joint.

Thus formed by claim 2, wherein the pipe joint with corrugated tube, the outer shape of the front Symbol retaining ring storage portion is the number of corners have any polygonal shape of 2n (n = 2 or greater natural number), The distance between the surfaces of the retaining surfaces of the retaining ring storage portion parallel to each other includes at least the same as the outer diameter of the corrugated tube, and the retaining surface is disposed on the facing surface where the surface spacing is equal to the outer diameter of the corrugated tube. Parts other than the stopper on the outer periphery of the ring are inscribed at a plurality of locations, and the stopper on the outer periphery of the retaining ring is arranged approximately in the middle between the inscribed positions adjacent to each other at the inscribed locations of the plurality of locations. 2. The corrugated pipe with a pipe joint according to claim 1, wherein the corrugated pipe is housed in a portion.

  According to the corrugated pipe with a pipe joint according to claim 2 formed in this way, the retaining ring storage part can also be used as a pillow part when uniting a plurality of corrugated pipes with this pipe joint, Easy to unitize. Further, since the distance between the mutually parallel surfaces of the retaining ring storage portion is substantially the same as the outer diameter of the corrugated tube, there is an advantage that the unitization can be made more compact.

Furthermore, the corrugated pipe with a pipe joint according to claim 3 is the corrugated pipe with a pipe joint according to claim 1 or 2, wherein the waterproof packing is directed toward the tip of the corrugated pipe. A cross-sectional skirt having a reduced diameter, the outer diameter of the reduced distal end portion is smaller than the inner diameter of the waterproof packing pressing portion of the female joint portion, and the outer diameter of the other end side is larger than the inner diameter of the waterproof packing pressing portion It is characterized by being a water-proof packing.
According to the waterproof packing according to claim 3, the skirt having a large diameter in the cross-sectional skirt shape is pressed by the inner side in the radial direction on the inner surface of the waterproof packing pressing portion of the female joint portion on the connection counterpart side. Since it is easy, higher waterproof properties can be obtained.

Further, the corrugated pipe with a pipe joint according to claim 4 is the corrugated pipe with a pipe joint according to any one of claims 1 to 3, wherein the retaining ring is split in the circumferential direction, and the outer side in the radial direction. It is characterized by being energized.
According to the corrugated pipe with a pipe joint according to claim 4, the retaining ring is easily reduced in diameter when pressed from the outside to the inside. Since the storage work can be performed with the diameter reduced, the storage work is easy.

The corrugated pipe with a pipe joint according to claim 5 is the corrugated pipe with a pipe joint according to any one of claims 1 to 4, wherein the male part of the pipe joint is located behind the waterproof packing storage part. The retaining ring storage portion provided in the female joint portion of the pipe joint has a pillow portion having the same outer shape, and both have one side on the same plane.
According to the corrugated pipe with a pipe joint according to claim 5, the retaining ring storage part can be used as a pillow part, and both the male part of the pipe joint and the female part of the pipe joint have the pillow part. Therefore, when a plurality of corrugated pipes with pipe joints are assembled into a unit, the assembly (unit) can be assembled more compactly, which is preferable.

  In addition, the corrugated pipe unit with a pipe joint according to claim 6 is a corrugated pipe unit with a pipe joint using the corrugated pipe with a pipe joint according to any one of claims 1 to 5, A plurality of corrugated pipes with pipe joints, end surfaces thereof are aligned, and one side of the pillow portion of adjacent corrugated pipes with pipe joints is arranged in parallel in the horizontal direction and the vertical direction. In addition, they are bound together at a predetermined interval.

  The corrugated pipe unit with a pipe joint according to claim 6, wherein the corrugated pipe unit with a pipe joint is arranged with a plurality of corrugated pipes with almost no unnecessary space between adjacent corrugated pipes with a pipe joint. Therefore, an extremely compact corrugated pipe unit with a pipe joint can be obtained.

  As described above, according to the corrugated pipe with a pipe joint of the present invention, it is possible to connect even if there is not much connection space, not to mention connection between corrugated pipes embedded in each one, and a plurality of corrugated pipes. It is possible to provide a corrugated pipe with a pipe joint that can also be applied to connection between corrugated pipe units formed by this assembly.

  The corrugated pipe with a pipe joint and the corrugated pipe unit with a pipe joint of the present invention will be described in detail below with reference to the drawings.

1 to 7 show an embodiment of a corrugated pipe with a pipe joint according to the present invention.
1A and 1B show one embodiment of a male part of a pipe joint formed at one end of a corrugated pipe with a pipe joint according to the present invention, wherein FIG. 1A is a side view and FIG. 1B is a front view. In the side view (a), the left side corrugated tube portion is left out except for one mountain.
In FIG. 1, a pipe joint male part 1 of a corrugated pipe with a pipe joint of the present invention has a substantially octagonal pillow part 2 in the vicinity of the terminal part of the pipe. The outer shape of the pillow part 2 is not limited to a substantially octagonal shape, and has a polygonal shape with a corner number of 2n (n = 2 or more) as in the outer shape of the retaining ring storage part described later. The distance L between the parallel surfaces facing each other is set to be approximately the same as the outer diameter of the corrugated pipe, that is, the outer diameter of the crest 3 of the corrugated pipe with the pipe joint.

A groove-shaped waterproof packing storage portion 5 for storing the waterproof packing 4 is provided at a position closer to the distal end of the pipe joint male portion 1 than the pillow portion 2. In this waterproof packing storage portion 5, a rubber waterproof packing 4 having an annular skirt shape with a reduced diameter toward the distal end portion of the pipe joint male portion 1 is stored.
Needless to say, the outer diameter of the skirt-like hem portion (maximum outer diameter portion) of the waterproof packing 4 is such that the male part 1 of the pipe joint is connected to the female part of the pipe joint on the connection partner side described later. At this time, the inner diameter of the corresponding portion (waterproof packing pressing portion described later) on the female side of the pipe joint located on the waterproof packing 4 is larger. Therefore, in the state where both are connected, the skirt-like skirt portion of the waterproof packing 4 is pressed radially inward by the inner surface of the corresponding portion of the pipe joint female portion, thereby ensuring water tightness and liquid tightness. It is designed to act as a waterproof packing.
On the other hand, the outer diameter of the reduced diameter distal end portion of the waterproof packing 4 is smaller than the inner diameter of the corresponding portion (waterproof packing pressing portion to be described later) on the pipe joint female portion side, and the pipe into the pipe joint female portion The joint male part 1 is easily inserted.

  At the same time, since the cross section has a skirt shape as described above, a large change in the outer diameter from the small outer diameter of the base of the waterproof packing 4 to the maximum outer diameter of the skirt can be taken. As a result, even if there is a slight manufacturing error in the inner diameter of the portion that contacts the waterproof packing 4 on the female side of the pipe joint, which is the connection partner, the waterproof packing 4 can be reliably pressed radially inward, High waterproofness can be secured.

  Further, a small-diameter portion 6 is provided ahead of the waterproof packing storage portion 5 of the pipe joint male portion 1. The latching | locking part 7 which has is formed over the circumferential direction of the pipe joint male part 1. FIG.

FIG. 2 shows a female part 10 that is connectable to the male part 1 of the pipe joint shown in FIG. 1 and is provided at the other end of the corrugated pipe.
Here, FIG. 2 (a) is a front view of the pipe joint female portion 10, and FIG. 2 (b) is a side view. Also in FIG. 2 (b), as in FIG. 1 (a), the corrugated tube portion on the right side is omitted except that only one mountain portion 3 is left.

  In FIG. 2, reference numeral 11 denotes a retaining ring storage portion, and a retaining ring 13 made of a relatively hard resin such as ABS resin is accommodated therein. The distal end side of the pipe joint female part 10 with respect to the retaining ring storage part 11 is a waterproof packing press that presses the waterproof packing 4 when the pipe joint male part 1 described above is inserted into the pipe joint female part 10. It is part 12. That is, the inner diameter of the waterproof packing pressing portion 12 is smaller than the outer diameter (maximum outer diameter portion) of the bottom of the skirt portion of the waterproof packing 4. Is inserted, the waterproof packing 4 is pressed inward in the radial direction by the inner surface of the waterproof packing pressing portion 12 so that reliable waterproof characteristics can be obtained.

FIG. 3 shows the storage state of the retaining ring 13 housed in the retaining ring housing portion 11 of the female joint portion 10 shown in FIG. 2. FIG. 3 (a) is a front view and FIG. ) Is a side view.
4 shows the retaining ring 13 itself housed in the retaining ring storage portion 11, FIG. 4 (a) is a front view of the retaining ring 13, and FIG. 4 (b) is a side view thereof. FIG. 4C shows a rear view of the retaining ring 13 viewed from the back side. 4A is a cross-sectional view taken along the line AA in FIG. 4A.

As shown in FIGS. 3 and 4, the retaining ring 13 has a large number of locking claws 13 a in the circumferential direction, and the tips of these locking claws 13 a run behind the female joint portion 10. It is accommodated in the retaining ring storage part 11 of the pipe joint female part 10 so as to face.
The front end of the locking claw 13a is bent inward in the radial direction, and the inner diameter of the circle formed by the front end of the bent locking claw 13a is the same as that of the locking portion 7 of the male joint 1 described above. smaller than the outer diameter D _1, and KanTsugi Teyu portion 1 of about equal to the outer diameter D ₂ of the small diameter portion 6, which is from the large inside diameter D ₃ it.

  Further, reference numeral 14 denotes a stopper that prevents the retaining ring 13 from coming off from the retaining ring storage portion 11 of the female joint portion 10. The retaining ring 13 once stored in the retaining ring storage part 11 is provided so as not to easily come out of the female fitting 10 of the fitting, and the retaining ring 13 tries to come out of the retaining ring storage part 11. Then, the stopper 14 hits the wall of the retaining ring storage portion 11 so that it cannot easily come out. Incidentally, as shown in FIG. 3 (b), this wall is constituted by a throttle portion 15 a formed in an annular shape on the distal end side of the female joint portion 10 adjacent to the retaining ring storage portion 11. It is. The inner diameter of the throttle portion 15 a is designed to be slightly smaller than the outer diameter of the retaining ring 13. In addition, a throttle portion 15b having a circular inner shape and the same shape as the throttle portion 15a is also provided behind the retaining ring storage portion 11, and the retaining ring 13 is securely held in the retaining ring storage portion 11. It is like that.

  3 and 4, reference numeral 16 is a so-called split (slit) provided by cutting one place in the circumferential direction of the retaining ring 13. In this way, the retaining ring 13 is urged so as to spread outward. Therefore, when the retaining ring 13 is attached, the retaining ring 13 is inserted into the retaining ring storage portion 11 while reducing the diameter by applying a force radially inward.

  The outer shape of the retaining ring storage portion 11 shown in FIGS. 2 and 3 is substantially the same shape and dimensions as the pillow portion 2 of the male joint portion 1 shown in FIG.

  As shown in FIG. 3, in the state where the retaining ring 13 is housed in the retaining ring housing portion 11 of the female joint portion 10 of the pipe joint, it is connected to the male joint portion 1 at one end of the corrugated pipe with one joint. The pipe joint female part 10 formed at the other end of the corrugated pipe with the other pipe joint faces each other, and thereafter, the pipe joint male part 1 is inserted into the pipe joint female part 10 as shown in FIG.

FIG. 6 shows a state where the pipe joint male part 1 is inserted into the pipe joint female part 10.
At this time, as described above, if the retaining ring 13 is formed of a relatively hard resin such as an ABS resin, the locking claw 13a exceeds the peak of the locking portion 7 of the male joint 1 at the time of insertion. When trying to settle down to the small diameter part 6 side whose outer diameter is smaller than the outer diameter of the locking part 7, there are many cases where it makes a clicking sound. Thus, when the retaining ring 13 is manufactured with a relatively hard synthetic resin, it can be confirmed from this sound that the male part 1 of the pipe joint and the female part 10 of the pipe joint are securely engaged, which is preferable.
In addition, even if the retaining ring 13 is formed of a metal spring material, the same effect is obtained, which is preferable.

  In the state shown in FIG. 6, the waterproof packing 4 on the pipe joint male part 1 side is pressed radially inward by the waterproof packing pressing part 12 of the pipe joint female part 10. Moreover, the tip of the claw 13a of the retaining ring 13 once expanded in diameter by the locking portion 7 of the pipe joint male part 1 has returned to the original state on the small diameter part 6 of the pipe joint male part 1, and therefore, As shown in FIG. 7, for example, even if the pipe joint male part 1 is pulled leftward toward FIG. 7 and pulled out from the pipe joint female part 10, the tip of the claw 13 a There is no worry of getting caught by the end of the part 7.

When FIG. 6 and FIG. 7 are compared, FIG. 6 shows a state in which the male joint 1 is fully pushed into the female female joint 10, and FIG. It shows a state where the male part 1 has been pulled in the left direction so as to be fully pulled out.
In FIGS. 6 and 7, when attention is paid to the position of the locking portion 7 at the distal end of the pipe joint male portion 1, the position of the locking portion 7 is shifted by t in the state of FIG. 6 and the state of FIG. Yes. In other words, this is play.
By providing play t in this way, when connecting long pipes such as corrugated pipes with pipe joints of the present invention, length adjustment in the longitudinal direction of corrugated pipes with pipe joints at the connection terminal is more effective. There is an advantage that can be easily done.
The amount of play t to be secured may be determined in consideration of the length of the corrugated pipe with a pipe joint to be connected and the installation location.

FIG. 8 shows the corrugated pipe with a pipe joint of the present invention shown in FIGS. It shows a state in which they are arranged and stacked, and are bound by a binder 31 at predetermined intervals in the longitudinal direction. In this example, the end faces are aligned so that the pipe joint male part 1 comes to one end and the pipe joint female part 10 comes to the other end. Of course, in addition to this, it is possible to make a modified arrangement such as making the shape of the two lower layers and the two upper layers different, but in that case, the pipe joint male part 1 and the pipe on the connection end face of the connection counterpart unit It is necessary to arrange the joint female part 10 in mind.
FIG. 9 is a diagram when the state of FIG. 8 is viewed from the B direction.
In FIG. 8, reference numeral 30 denotes a pillow portion provided at a predetermined interval in the longitudinal direction of the corrugated pipe with a pipe joint. This includes a pillow portion 2 provided in the vicinity of the distal end portion of the male joint portion 1 shown in FIG. The outer shape of the retaining ring storage portion 11 formed in the female pipe joint portion 10 is substantially the same shape and the same dimensions.

As described above, the outer shape of the retaining ring storage portion 11 has a polygonal shape with 2n corners (n = 2 or more natural number), and the distance between opposing parallel surfaces is the same as that of the corrugated tube. It is almost the same as the outer diameter. As a polygon having an outer shape of 2n polygon (n = 2 or more natural number), it means an even polygon, and a quadrangle, a hexagon, an octagon, and the like are conceivable. For example, FIG. The case is shown. In this case, the diameter of the retaining ring is equal to the surface spacing of the opposing surface except for the stopper on the outer periphery of the retaining ring on the facing surface where the surface spacing of the retaining ring storage portion is equal to the outer diameter of the corrugated tube. The stoppers on the outer periphery of the retaining ring are arranged approximately in the middle of the inscribed positions adjacent to each other at the inscribed positions of the plurality of parts, and the retaining ring is accommodated with parts other than the stoppers. It is stored in the retaining ring storage part so as not to break the contact state with the opposing surface of the part. That is, since the outer shape of both the pillow part 2 and the pillow part 30 is substantially the same shape and the same size as the outer shape of the retaining ring storage part 11, the corrugated pipes with the pipe joints are left and right as shown in FIGS. It can be unitized in a state of being substantially in contact with each other vertically.
Therefore, it can be made extremely compact, and can be made more durable against pressure from above and force from the side after laying.

In this way, when corrugated pipes with pipe joints are unitized, when connecting the units, the units are made compact, so the connection work is around the corrugated pipes with pipe joints that make up the unit. There is almost no space to do.
However, if it is a corrugated pipe with a pipe joint of the present invention, the pipe joint male part of the corrugated pipe with one pipe joint is connected to the female part of the corrugated pipe with a pipe joint constituting the connection partner unit. You can connect by simply plugging in. Therefore, this kind of corrugated pipe unit with a pipe joint can also be easily connected.
Moreover, if the waterproof packing has a cross-sectional skirt shape, a split is provided on the retaining ring, and more particularly if a play t is provided between the locking claw and the locking portion as shown in FIG. Even if there are some manufacturing errors in the corrugated pipes with pipe fittings that make up the corrugated pipe unit with pipe fittings, for example, there are some errors in the length direction, it is easy and reliable to connect the units together. It becomes possible to do.

  The wave of the corrugated tube may be a spiral wave or may be an independent wave. Needless to say, the present invention can be applied to any wave shape.

  As described above, according to the present invention, connection is possible even if there is not much connection space, as well as connection between the corrugated pipes embedded in each one, as well as the formation of a plurality of corrugated pipes. It is possible to provide a corrugated pipe with a pipe joint and a corrugated pipe unit with a pipe joint that can be easily applied to the connection between the units.

An example of a pipe joint male part of a corrugated pipe with a pipe joint of the present invention is shown, (a) is a side view and (b) is a front view. An example of a pipe joint female part of a corrugated pipe with a pipe joint of the present invention is shown, (a) is a front view and (b) is a side view. The accommodation state of the retaining ring accommodated in the pipe joint female part shown in FIG. 2 is shown, (a) is a front view, (b) is a side view. FIG. 3 shows one embodiment of a retaining ring housed in the female part of the pipe joint shown in FIG. 2, wherein (a) is a front view, (b) is a side view, and (c) is a rear view. It is a side view which shows the state just before connecting the pipe joint female part and pipe joint male part of a corrugated pipe | tube with a pipe joint of this invention. It is a side view which shows the state which connected the pipe joint female part and pipe joint male part of the corrugated pipe with a pipe joint of this invention. It is the side view which shows the state which connected the pipe joint female part and the pipe joint male part of the corrugated pipe with a pipe joint of this invention, and pulled the pipe joint male part in the axial direction from the state of FIG. It is a side view which shows the state which laminated | stacked the corrugated pipe | tube with a pipe joint of this invention, and was unitized. It is the front view seen from the B direction in FIG.

Explanation of symbols

1 Male fitting
2, 30, 11 Pillow part 4 Waterproof packing 5 Waterproof packing storage part 6 Small diameter part 7 Locking part 10 Fitting female part 11 Retaining ring storing part 12 Waterproof packing pressing part 13 Retaining ring 13a Locking claw 14 Stopper 15a, 15b Restriction part 16 Split 31 Binder

Claims (6)

A corrugated pipe with a pipe joint having a pipe joint male part at one end and a pipe joint female part fitting into the pipe joint male part at the other end,
Furthermore, it has a pillow part provided near the tip of the pillow part and pipe joint male part provided at a predetermined interval in the corrugated pipe,
The male part of the pipe joint is provided with a locking part provided at the tip part in the outer peripheral direction, and a ring-shaped waterproof packing provided at a rear position separated from the locking part by a predetermined distance in the pipe axis direction. And a waterproof packing storage portion for storing the waterproof packing,
The pipe joint female part is inserted into a waterproof packing pressing part that presses the waterproof packing at its tip part, and the pipe joint male part on the connection partner side is inserted behind the waterproof packing pressing part, A retaining ring having a retaining claw for retaining the retaining part and preventing the male part of the tubular joint from coming off from the female part of the tubular joint, and a plurality of parallel facing surfaces for housing the retaining ring. The outer shape has an even polygonal retaining ring storage part ,
Further, the retaining ring is housed in the retaining ring housing portion so as to be movable in the tube axis direction. The retaining ring has a plurality of stoppers on the outer peripheral portion, and the retaining ring is the retaining ring. The stopper prevents the retaining ring from coming out of the retaining ring housing part when the stopper hits the wall of the retaining ring housing part, and at the same time, the retaining ring housing part The outer shape is substantially the same shape and the same size as the pillow portion provided at a predetermined interval in the longitudinal direction of the corrugated tube and the pillow portion provided in the vicinity of the distal end of the pipe joint male portion, and the retaining ring storage portion is the pillow portion. A corrugated pipe with a pipe joint, characterized in that it can be used as The outer shape of the retaining ring storage portion has a polygonal shape with 2n corners (n = 2 or more natural number), and the distance between the opposing surfaces of the retaining ring storage portion is wavy. The outer surface of the retaining ring includes at least a portion that is substantially the same as the outer diameter of the tube, and is inscribed in a plurality of portions other than the stoppers on the outer periphery of the retaining ring on the opposite surface where the surface interval is equal to the outer diameter of the corrugated tube. 2. The wave with a pipe joint according to claim 1 , wherein the stopper is disposed substantially in the middle of the inscribed positions adjacent to each other at the inscribed positions of the plurality of locations, and is accommodated in the retaining ring accommodating portion. Tube.   The waterproof packing is reduced in diameter toward the corrugated tube tip, and the outer diameter of the reduced tip is smaller than the inner diameter of the waterproof packing pressing portion of the pipe joint female portion, and the outer diameter on the other end side. The corrugated pipe with a pipe joint according to claim 1, wherein the waterproof packing has a cross-sectional skirt shape larger than the inner diameter of the waterproof packing pressing portion.   The corrugated pipe with a pipe joint according to any one of claims 1 to 3, wherein the retaining ring is split in the circumferential direction and biased radially outward.   The pipe joint male part has a pillow part having the same outer shape as the retaining ring storage part provided in the pipe joint female part at the rear of the waterproof packing storage part, and both of them have one side. The corrugated pipe with a pipe joint according to any one of claims 1 to 4, wherein the corrugated pipe is provided on the same plane. A plurality of corrugated pipes with pipe joints, end surfaces thereof are aligned, and one side of the pillow portion of adjacent corrugated pipes with pipe joints is arranged in parallel in the horizontal direction and the vertical direction. 6. A corrugated pipe unit with a pipe joint using the corrugated pipe with a pipe joint according to any one of claims 1 to 5, wherein the corrugated pipes are bundled together at predetermined intervals.

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