JP5274199B2 - Length adjusting connecting pipe - Google Patents

Description

The present invention relates to a length-adjusting connecting pipe for adjusting the height of a drainage basin, the installation structure of a drainage basin using the same, and a length adjusting method for the length-adjusting connecting pipe .

  Conventionally, there is known a drainage system in which domestic sewage from a kitchen or toilet flows into a sewage main through a drainage pit buried in the ground, and is carried to a sewage treatment plant by the sewage main. Such drainage basins are installed in drainage pipe connection parts buried in the ground, drainage pipe bends, drainage pipes at site boundaries, etc. It has a structure in which a riser connected to the ground surface and a top end opening of the riser are covered with a lid.

  This kind of drainage basin preferably has the upper surface of the lid coincident with or substantially coincides with the ground surface. In many cases, for example, in Patent Document 1, a riser is formed in a bellows shape that can be expanded and contracted in order to adjust the height according to construction as described above. Members have been proposed.

Japanese Utility Model Publication No. 05-042390

  However, the height adjusting member shown in Patent Document 1 has a problem that the height can be adjusted only within the range in which the bellows can be expanded and contracted. Further, when the weight of the lid member is excessive, the bellows contracts due to the weight, and there is a problem that it is difficult to maintain a desired height position. Not only that, the riser is embedded in the ground in a state where the posture is maintained after height adjustment, but it is formed in a bellows shape to give stretchability. There is a risk that the cost will increase.

Therefore, the present invention can adjust the height arbitrarily, and an inexpensive length adjusting connecting pipe that can always maintain its posture in the final stage of construction and a drainage dredge using the same. It is an object of the present invention to provide an installation structure and a length adjusting method for a length adjusting connecting pipe .

As a specific means for solving the above problems, a length adjusting connecting pipe according to the present invention includes (1) connecting a first cylindrical portion and a second cylindrical portion formed in a cylindrical shape on the same axis. The first tube part is formed to be fitted to one of a pair of pipes that can be fitted to each other, and has a groove formed on the outer peripheral surface at equal intervals so as to surround the shaft center. The second cylinder part is formed to be fitted to the other pipe of the pair of pipes and the first cylinder part, and at least the first cylinder part visually recognizes the groove part from the inner peripheral surface side. It is characterized by being formed of a transparent or translucent material .

  Thereby, it is possible to arrange | position the connection pipe | tube for length adjustment of this invention between said pair of pipe | tubes. Moreover, the said cylindrical shape has shown holding the same cross section except a groove part.

  According to the above configuration, the length of the first tube portion can be adjusted by cutting the first tube portion along the groove portion of the first tube portion, and the cut surface is the first tube portion before cutting. Since it has the same or substantially the same shape as the end face, the end portion of the first cylindrical portion after cutting can be fitted into one of the tubes. Therefore, by interposing the length adjusting connecting pipe of the present invention between the pair of pipes and adjusting the length of the length adjusting connecting pipe, the distance between the pair of pipes can be adjusted as appropriate. . In other words, the protruding amount of one tube relative to the other tube can be appropriately adjusted by the length adjusting connecting tube.

  Then, since the 2nd cylinder part can be fitted to the 1st cylinder part before and after cutting, the 1st cylinder part and the 2nd cylinder part after the cutting concerned are fitted, and two length adjustment connections It becomes possible to connect the tubes.

  Therefore, the distance between the pair of tubes can be shortened by cutting the first tube portion, while it can be lengthened by connecting two or more adjustment connecting tubes. In addition, since the end of the first cylinder part before cutting, the end of the first cylinder part after cutting, and the second cylinder part are connected to each other by fitting with a pair of tubes, the posture is maintained even after fitting. It is possible to maintain.

In addition , since the groove portion can be viewed from the inner peripheral surface side of the first cylindrical portion or through the inner peripheral surface side, the first cylindrical portion is cut by applying a blade such as a saw to the groove portion. However, the cutting part and the groove part which becomes a part to be cut from now on can be visually recognized over the whole, and the cutting accuracy can be improved.

  (2) Moreover, while the said 1st cylinder part and the 2nd cylinder part are formed in a cylindrical shape, the said 2nd cylinder part respond | corresponds to the outer diameter of the said 1st cylinder part (it is the same or substantially the same as an outer diameter) It is preferable that the outer diameter is the same as or substantially the same as the inner diameter of the first cylindrical portion.

  Thereby, when the second tube portion has an inner diameter corresponding to the outer diameter of one end portion of the first tube portion (same as the outer diameter), the first tube portion is connected to the second tube portion. It is possible to easily connect the two adjustment connecting pipes by accommodating one of the end portions.

  In addition, when the second cylindrical portion has an outer diameter (same as the inner diameter) corresponding to the inner diameter of one end portion of the first cylindrical portion, the second cylindrical portion is one of the first cylindrical portions. The two adjustment connecting pipes can be easily connected by being housed in the end portion of the.

( 3 ) In the drainage basin installation structure using the length adjusting connecting pipe according to the present invention, the pair of pipes constitute a drainage basin, and the one pipe exposes the upper end edge to the ground surface. The other pipe is a rising pipe communicating with the processing apparatus, and the lid receiving frame pipe and the rising pipe are connected by the length adjusting connecting pipe.

  According to this, the length adjusting connecting pipe is arranged between the lid receiving frame pipe and the rising pipe forming the drainage basin, and thereby the upper end edge of the lid receiving frame pipe according to the construction situation. It is possible to easily adjust the height with respect to the ground surface (or virtual ground surface) by adjusting the height with the connecting pipe for adjustment.

(4) The drainage installation structure according to the invention of the present application is such that the length adjusting connecting pipe is configured such that the first cylindrical portion is on the inner peripheral surface side in a state where the second cylindrical portion is fitted to the rising pipe. The height is adjusted so that the height of the upper end edge of the lid receiving frame tube is the same as the height of the finished surface by cutting while visually recognizing the groove portion .

(5) The length adjusting method of the length adjusting connecting pipe according to the present invention is the state in which the second cylinder portion is fitted to the upper end of the rising pipe which is buried in the ground and rises toward the ground surface. The first tube portion is cut from the inner peripheral surface side while visually recognizing the groove portion .

  According to the length adjusting connecting pipe of the present invention, the distance between a pair of pipes that can be fitted to each other can be arbitrarily adjusted, and the distance can always be maintained.

  Hereinafter, based on FIGS. 1-6, it demonstrates in detail about the form which implemented this invention to the drain.

  As shown in FIGS. 1 and 2, a drainage basin 9 according to the present invention includes a basin body 90 that is buried in the ground and serves as a wastewater treatment device, and is connected to and connected to the basin body 90 on the ground surface. A riser pipe 91 rising upward, and a lid receiving frame pipe 92 which is located above the riser pipe 91 and exposes the upper end edge on the finished surface F formed on the base plate G. The riser pipe 91 and the lid receiving frame The length adjusting connecting pipe 1 of the present invention is arranged between the pipe 92 and the pipe 92.

  The lid receiving frame tube 92 has a tube main body 93 formed in a cylindrical shape, and a lid 94 is fitted and supported on the upper edge of the tube main body 93.

  The pipe body 93 has an annular portion 95 having a predetermined outer diameter and an inner diameter, and an outer diameter identical to the inner diameter of the annular portion 95 and an inner diameter having a predetermined size, and is connected to the lower end portion of the annular portion 95. The step portion 96 a is formed between the reduced diameter portion 96 and the annular portion 95 by the upper end portion of the reduced diameter portion 96.

  The lid 94 is formed in a disk shape having a diameter equal to or slightly smaller than the inner diameter of the annular portion 95, and can be fitted to the annular portion 95 while being placed on the step portion 96a. In this embodiment, the lid 94 is detachable from the tube main body 93, but the lid 94 is opened and closed to the tube main body 93 by connecting the tube main body 93 and the lid 94 via a hinge mechanism or the like. It can also be attached as desired.

  The rising pipe 91 is formed in a cylindrical shape having the same outer diameter and inner diameter as the annular portion 95 of the pipe main body 93, whereby the lid receiving frame pipe 92 is formed on the outer peripheral surface of the reduced diameter portion 96. It is possible to fit the end portion of the rising pipe 91 in a state of being in contact with or in close contact with the inner peripheral surface. At this time, the axis of the lid receiving frame pipe 92 and the axis of the riser pipe 91 coincide.

  As shown in FIGS. 3 and 4, the length adjusting connecting pipe 1 is made of an amorphous resin material such as polyvinyl chloride, acrylonitrile butadiene styrene, polystyrene, acrylic, polycarbonate, modified polyphenylene ether, among thermoplastic resins. The whole is made transparent or semi-transparent by molding from the raw material as a raw material, and formed into a shape in which a pair of cylindrical parts 2 and 3 having different diameters are connected on the same axis Has been. One of the pair of cylindrical portions 2 and 3 is configured as a first cylindrical portion 2 that can be fitted to the lid receiving frame tube 92, and the other is configured as a second cylindrical portion 3 that can be fitted to the rising tube 91. .

  The first cylindrical portion 2 is formed in a cylindrical shape having the same outer diameter and inner diameter as the annular portion 95 and the rising pipe 91 of the lid receiving frame pipe 92. Further, as shown in FIG. 3, a plurality (four in this embodiment) of groove portions 4 are formed at equal intervals on the outer peripheral surface of the first cylindrical portion 2 in the circumferential direction with respect to the axis X. Yes.

The groove portion 4 has a depth of about 1/5 to 1/10 of the thickness (wall thickness) of the first tube portion 2, that is, when the thickness of the first tube portion 2 is 2.5 mm. It is preferably formed at a depth of about 0.25 mm to 0.5 mm, and most preferably 0.3 mm. Moreover, in this embodiment, although the space | interval between the groove parts 4 is 10 mm, as long as this pitch is about 5 mm-20 mm, what kind of space | interval may be used. Moreover, the shape of the groove part 4 is also V-shaped or box-shaped, and a suitable shape is selected according to the purpose of use and the site of use of the length adjusting connecting pipe 1.

  Each groove portion 4 serves as a cutting guide for a known cutting means such as a cutter or a saw for field work, whereby the first cylindrical portion 2 is separated by a cutting line Q as shown in FIG. The main body side first tube portion 2a on the second tube portion 3 side and the end material side first tube portion 2b can be divided into two. By cutting the first tube portion 2 in this way, it is possible to shorten the length of the length adjusting connecting pipe 1 in the axial direction.

  Moreover, since the 1st cylinder part 2 is formed in the cylindrical shape, the cut surface of the main body side 1st cylinder part 2a after a cutting | disconnection corresponds or substantially corresponds with the edge part shape of the 1st cylinder part 2 before a cutting | disconnection. Accordingly, the first tube portion 2 can be fitted into the reduced diameter portion 96 of the lid receiving frame tube 92 even when only the main body side first tube portion 2a after cutting is formed.

  The second cylindrical part 3 is formed to have the same inner diameter as the outer diameter of the annular part 95 and the rising pipe 91 of the lid receiving frame pipe 92 and an outer diameter of a predetermined size, and is connected to the first cylindrical part 2. As a result, a step portion 5 is formed between the first tube portion 2 and the second tube portion 3.

  Further, since the inner diameter of the second cylindrical portion 3 is the same as the outer diameter of the annular portion 95 of the lid receiving frame pipe 92 and the rising pipe 91, the inner diameter of the second cylindrical portion 3 is the same as the outer diameter of the first cylindrical portion 2. Thus, as shown in FIG. 4, the second cylindrical portion 3 can be fitted also to the first cylindrical portion 2 of the same length adjusting connecting pipe 1.

  The configuration of the present embodiment is as described above. Next, a procedure for constructing the drainage basin 9 of the present embodiment at a construction site of a house will be described with reference to FIG.

  As shown in FIG. 5A, first, a base plate G at a position where the drainage basin 9 is installed is dug to a predetermined depth to form a dug portion D, and a riser pipe 91 is connected to the upper end portion of the dug portion D. The lid receiving frame tube 92 is embedded in a state where it is fitted. At this time, it is preferable that the axial center of the riser 91 is embedded in a state where it is set in the vertical direction.

  At this time, the upper end edge of the lid receiving frame pipe 92 is located at a position lower by about h than the finished surface F formed on the base board G after the construction of the house.

  Here, the finished surface F is constructed by laminating a member having a predetermined thickness, such as mortar or tile, on the base board G, and prior to the construction of the finished surface F, the drainage basin 9 as described above is buried. The construction is generally performed. Then, when the upper end surface of the lid receiving frame tube 92 is made to coincide with the finishing surface F from the beginning of constructing the drainage basin 9, the lid receiving frame tube is exposed at the stage where the base plate G before the finishing surface F is applied is exposed. The upper end portion of 92 protrudes from the base board surface, which not only obstructs the worker's walking but also hinders the passage of the work vehicle or the like. Alternatively, the lid receiving frame pipe 92 and the rising pipe 91 may be damaged by a collision of the work vehicle or the like. In order to avoid such a situation, at the present stage (the stage before the construction of the finished surface F), the upper edge of the lid receiving frame tube 92 is lower than the finished surface F by about h as shown in FIG. Is set.

  Thereafter, when the work proceeds to the stage where the finished surface F is applied, the lid receiving frame pipe 92 is removed from the rising pipe 91, and the length adjusting connecting pipe 1 is fitted to the rising pipe 91 as shown in FIG. . At this time, by cutting the first tube portion 2 of the length adjusting connecting pipe 1, the length of the length adjusting connecting pipe 1 in the axial direction can be eliminated. Set to. When the length adjusting connecting pipe 1 is cut, the length adjusting connecting pipe 1 is formed to be transparent or translucent, so that the groove portion 4 of the first cylindrical portion 2 is visually recognized even from the inner peripheral surface side. In addition, the groove portion 4 can be visually recognized through the inner peripheral surface.

  Therefore, when cutting the first tube portion 2 along with a cutter such as a field work cutter or a saw along the groove portion 4, the groove portion 4 which is the cutting portion and the cutting line to be cut from now on is always visually recognized. The cutting operation is performed while cutting the first cylindrical portion 2 along the groove portion 4 with high accuracy. As a result, the cut surface is formed perpendicular or substantially perpendicular to the axis of the length adjusting connecting tube 1, and even when the lid receiving frame tube 92 is placed on the cut surface, the lid receiving frame tube 92 The upper end surface is kept horizontal.

  In addition, when the height difference h is as large as the length adjusting connecting pipe 1, it is naturally not necessary to cut the length adjusting connecting pipe 1.

  Then, as shown in FIG.5 (c), the finishing surface F is constructed. By providing the length-adjusting connecting pipe 1 as described above, the upper end edge of the lid receiving frame pipe 92 matches the height of the finished surface F, whereby the finished surface F and the upper end edge of the lid receiving frame pipe 92 ( That is, the upper surface of the lid 94 is smoothly connected.

  Incidentally, the difference in height between the upper end edge of the riser 91 and the finished surface F is not only different for each site, but also differs depending on the arrangement position of the riser 91 even at the same site. In many cases, the difference between the two is equal to or longer than the length of the length adjusting connecting pipe 1. In order to cope with such a situation, the length adjusting connecting pipe 1 of the present invention is formed so that the outer diameter of the first cylindrical portion 2 and the inner diameter of the second cylindrical portion 3 are the same, and the first cylindrical portion 2 Since the step portion 5 is formed by the lower end portion, a pair of length adjusting connecting pipes 1 is used, and the other length adjusting connecting pipe 1 is connected to the first tube portion 2 of one length adjusting connecting pipe 1. By fitting the second cylinder part 3 in the inner part, the pair of length adjusting connecting pipes 1 can be connected in the axial direction. Therefore, even when the height difference is equal to or greater than the length of the length adjusting connecting pipe 1 as described above, a plurality of length adjusting connecting pipes 1 are arranged in the axial direction as shown in FIG. By connecting, the difference in height can be adjusted.

  According to the present embodiment, the length adjusting connecting pipe 1 can be shortened in the axial direction by cutting the first cylindrical portion 2. In addition, the plurality of length adjusting connecting pipes 1 can be connected to each other in the axial direction so as to correspond to a length longer than the length of the single length adjusting connecting pipe 1. For this reason, even if it is a case where the height position of the lid receiving frame pipe 92 of the drainage tub 9 has to be lowered or raised as the construction progresses as described above, the one or more length adjusting connecting pipes 1 By cutting and connecting, flexible response to such height adjustment is achieved, and the workability is remarkably improved.

  As mentioned above, although embodiment which implemented this invention to the drain 9 was explained in full detail, this invention is not limited only to the said embodiment.

  For example, the sizes of the diameters of the first cylindrical portion 2 and the second cylindrical portion 3 of the length-adjusting connecting tube 1 can be appropriately changed in accordance with the diameters of the lid receiving frame tube 92 and the rising tube 91. Therefore, in the above embodiment, the upper end portion of the rising pipe 91 is surrounded by the second cylindrical portion 3 of the length adjusting connecting pipe 1 and the reduced diameter portion 96 of the lid receiving frame pipe 92 is the first cylindrical portion 2. The first cylinder is constituted by the configuration in which the upper end portion of the rising pipe 91 surrounds the second cylindrical portion 3 of the length adjusting connecting pipe 1 and the reduced diameter portion 96 of the lid receiving frame pipe 92. Even when either or both of the configurations surrounding the portion 2 are employed, the same effects as those of the above-described embodiment can be obtained.

  That is, the first tube portion 2 and the second tube portion 3 are formed in a cylindrical shape, and the second tube portion 3 corresponds to the outer diameter of the first tube portion 2 (the same or substantially the same as the outer diameter). ) It has an outer diameter corresponding to the inner diameter or the inner diameter of the first cylindrical portion 2 (same or substantially the same as the inner diameter).

  In addition, the cross-sectional shape of the length adjusting connecting pipe 1 is not limited to a perfect circle, but may be a polygonal shape such as a quadrangular shape, a hexagonal shape, an octagonal shape, or an elliptical shape according to the shape of the rising pipe 91 or the like. Is also possible.

  Further, the length adjusting connecting pipe 1 of the present invention is not only provided between the rising pipe 91 of the drainage basin 9 and the lid receiving frame pipe 92 as in the above-described embodiment, but also a vertical pipe such as an inspection port or a cleaning port. As long as it has a pair of pipes that can be fitted to each other, such as extension / fine adjustment of the tube and extension / fine adjustment of the horizontal pulling tube, any of them can be deployed between the pair of tubes. .

  As an application example of the present invention, the present invention can be applied to a length adjusting connecting pipe for adjusting the height of a drainage tub or the like.

It is a whole perspective view which shows an example at the time of applying the connecting pipe for length adjustment which concerns on this invention to a drain. It is sectional explanatory drawing which shows an example at the time of applying the connecting pipe for length adjustment which concerns on this invention to a drain. It is a side view which shows an example of the connecting pipe for length adjustment which concerns on this invention. It is a section explanatory view showing an example of a length adjustment connecting pipe concerning the present invention. It is a figure explaining the procedure which constructs the drain with the connecting pipe for length adjustment concerning this invention. It is sectional explanatory drawing which shows a mode that two connection pipes for length adjustment which concern on this invention were connected.

DESCRIPTION OF SYMBOLS 1 ... Length adjusting connecting pipe 2 ... 1st cylinder part 2a ... Main body side 1st cylinder part 2b ... End material side 1st cylinder part 3 ... 2nd cylinder part 4 ... Groove part 5 ... Step part 9 ... Drainage tank 90 ...桝 main body 91 ... riser pipe 92 ... lid receiving frame pipe 93 ... pipe main body 94 ... lid body 95 ... annular part 96 ... reduced diameter part 96a ... step part D ... digging part F ... finishing surface G ... foundation board h ... height Difference Q ... Cutting line X ... Center axis

Claims (5)

The first cylindrical part and the second cylindrical part formed in a cylindrical shape are connected on the same axis, and are provided.
The first tube portion includes a groove portion that is formed so as to be fitted to one tube of a pair of tubes that can be fitted to each other, and is formed on the outer peripheral surface at equal intervals in a state of surrounding the axis.
The second cylinder part is formed to be fitted to the other pipe of the pair of pipes and the first cylinder part, and at least the first cylinder part can visually recognize the groove part from the inner peripheral surface side. As described above, the length adjusting connecting pipe is made of a transparent or translucent material .   The first tube portion and the second tube portion are formed in a cylindrical shape, and the second tube portion has an inner diameter corresponding to the outer diameter of the first tube portion or an outer diameter corresponding to the inner diameter of the first tube portion. The connecting pipe for length adjustment according to claim 1, wherein the connecting pipe for length adjustment is formed with a diameter. A drainage installation structure using the length adjusting connecting pipe according to claim 1 or 2 ,
The pair of pipes constitute a drainage basin, the one pipe is a lid receiving frame pipe that exposes the upper end edge to the ground surface, and the other pipe is a rising pipe communicating with the processing apparatus, the lid receiving frame pipe and A drainage basin installation structure, wherein the riser pipe is connected by the length adjusting connecting pipe. The length adjusting connecting pipe is formed by cutting the first cylindrical part from the inner peripheral surface side while visually recognizing the groove part in a state where the second cylindrical part is fitted to the rising pipe. 4. The drainage installation structure according to claim 3, wherein the height of the upper edge of the receiving frame pipe is adjusted so as to be equal to the height of the finished surface . The first tube portion is cut from the inner peripheral surface side while visually recognizing the groove portion in a state where the second tube portion is fitted to the upper end of the riser pipe which is buried in the ground and rises toward the ground surface. The length adjustment method of the connecting pipe for length adjustment of Claim 1 or Claim 2 characterized by these .

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