JP2013160283A - Pipe connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pipe connector connectable to multiple kinds of pipe materials different in connection end shape and usable even in a narrow construction space.SOLUTION: A pipe connector (100) connectable to multiple kinds of pipe materials P different in connection end shape includes a plurality of connection parts (110, 111, 112) connectable to a plurality of connection ends of different shape; a connection part (120) connecting the plurality of connection part (110); and dividing means (121, 122) formed at the connection part (120) and capable of dividing the connection part (120) to separate the plurality of connection parts (110).

Description

  The present invention relates to a pipe connection body connected to an end of a pipe material which is a long material.

  Conventionally, various pipe connecting bodies have been used as pipe joints for connecting pipes by connecting to the ends of a plurality of pipes, or as connecting bodies for connecting a functional member such as a vent valve and pipes. ing.

  For example, Patent Document 1 discloses a branch pipe joint for intake of a drainage channel as a pipe connection body. The pipe joint body (34) includes a vent pipe connection port forming body (36), a first connection port (37), and a second connection port (38). The ventilation pipe connection port forming body (36) is connected to the intake device (51) having the intake valve body (66) via the ventilation pipe (49) and the connection port body (43). The first connection port (37) is connected to the drainage horizontal branch pipe (25), and the second connection port (38) is connected to the drainage vertical pipe (26). That is, the said pipe coupling body (34) comprises a ventilation valve structure by connecting an intake device (51) and a drain pipe (25, 26). The vent valve structure functions to eliminate negative pressure in the drain pipe and prevent odors from leaking out.

JP 2004-324239 A

  However, since the diameter and shape of the connection end of the pipe material connecting the pipe connection body as in Patent Document 1 are various, the installer must always prepare a plurality of types of pipe connection bodies according to the type of the pipe material. did not become. More specifically, since the piping is generally arranged in an invisible place such as the back of the wall, the construction worker can know in advance the type of pipe material to which the pipe joint is connected in the piping work. Often difficult. In such a case, it is necessary to carry a plurality of types of pipe connections to the site so that the pipe connections can handle a plurality of types of pipe materials. There is a problem in that it is necessary to keep stock of the pipe connection body, which increases costs.

  The present invention has been made in order to solve the above-described problems, and an object of the present invention is to provide a pipe connection body that can be connected to a plurality of types of pipe materials having different connection end shapes and can be used even in a narrow construction space. It is to provide.

  The pipe connection body according to claim 1 is a pipe connection body that can be connected to a plurality of types of pipe materials having different connection end shapes, and a plurality of connection portions that can be connected to a plurality of connection ends having different shapes; And a connecting part that connects the plurality of connecting parts, and a dividing means that is formed in the connecting part and that allows the connecting part to be divided to separate the plurality of connecting parts.

  The pipe connection body according to claim 2 is the pipe connection body according to claim 1, wherein the plurality of connection portions include an outer connection portion and an inner connection portion provided inside the connection portion, and the connection portion is an outer side. The connecting portion and the inner connecting portion are connected to each other, and the disconnecting means disconnects the connecting portion so that the outer connecting portion is detached from the pipe connection body.

  The pipe connection body according to claim 3 is the pipe connection body according to claim 1 or 2, wherein the dividing means includes a thin portion continuously formed in the connecting portion, and at least one portion partially formed on the thin portion. It consists of a thick part, and the adjacent connection part is cut off by removing the thick part.

  According to a fourth aspect of the present invention, in the pipe connecting body according to the third aspect, the thick-walled portion is formed in a size that can be removed by drilling with a drill, and includes a positioning concave portion into which the drill tip fits. It is characterized by becoming.

  The pipe connection body according to claim 5 is the pipe connection body according to claim 2, wherein the dividing means is formed on the inner connection portion side of the connection portion and the female screw formed on the outer connection portion side of the connection portion. It consists of a male screw, and the outside connection part and the inside connection part can be screwed and screwed together.

  The pipe connection body according to claim 6 is the pipe connection body according to any one of claims 1 to 5, wherein a connection end of one of the plurality of connection portions protrudes from a connection end of another connection portion. Are arranged as follows.

  In the pipe connection body according to the first aspect of the present invention, a plurality of connection portions are arranged so as to be connectable to a plurality of connection ends having different shapes, so that the diameter or shape of the connection end of the pipe material is one. Even if it does not match the shape of the part, it is possible to select another connection part according to the pipe material and connect the pipe connection body to the pipe material. That is, since the pipe connection body of the present invention can be connected to a plurality of types of pipe materials, the number of pipe connection bodies prepared in advance at the time of construction can be reduced. Therefore, according to this invention, while reducing the burden of the installer who carried the multiple types of pipe connection body conventionally, the cost for preparing and stocking multiple types of pipe connection bodies is reduced. In general, since the piping material is disposed in a very narrow space such as the back of a wall, installation may be difficult due to the size of the pipe connector itself, or work efficiency may be reduced. However, in the pipe connection body of the present invention, by providing a dividing means at the connecting part that connects adjacent connecting parts, one connecting part (connected to the pipe material) and another (not connected to the pipe material) A connection part can be isolate | separated and another connection part can be removed from a pipe connection body. Therefore, the pipe connector itself can be deformed to a minimum required size, and workability in a narrow space is improved.

  In addition to the effect of the pipe connection body according to claim 1, the pipe connection body according to claim 2 includes a plurality of connection portions including an outer connection portion and an inner connection portion provided inside the connection portion. The overall shape of the tube connector can be made more compact, and the portability of the pipe connector is further improved. Further, when the connecting end of the pipe material is not connected to the outer connecting portion by the dividing means, the connecting portion between the outer connecting portion and the inner connecting portion can be divided and the outer connecting portion can be detached from the pipe connecting body. . Thereby, the workability in a narrow space is further improved.

  In addition to the effect of the pipe connection body according to claim 1 or 2, the pipe connection body according to claim 3 is characterized in that the dividing means includes a thin wall portion formed continuously so that the connecting portion can be easily broken and an adjacent connection portion. Is formed of a thick part that is partially formed on the thin part so as not to be easily separated. When it is not necessary to separate the connection parts, the thick parts formed in the connection part strongly connect the adjacent connection parts. On the other hand, when separating adjacent connecting portions, the thin portion can be easily broken simply by removing the thick portion (with a drill or the like), and the connecting portion between adjacent connecting portions can be quickly and easily cut. be able to. Therefore, the pipe connection body according to the present invention can easily separate the plurality of connection portions according to the construction situation while maintaining the robustness with a simple structure.

  In addition to the effect of the pipe connection body according to claim 3, the pipe connection body according to claim 4 is formed in such a size that the thick wall portion is removed by drilling with a drill and has a positioning recess. By doing so, the thicker portion can be reliably removed without causing the drill's moving shaft to move, only by the operator operating the drill with the tip of the drill aligned with the positioning recess. Therefore, the pipe connector according to the present invention improves the workability and speed of the installer.

  In addition to the effect of the pipe connection body according to claim 2, the pipe connection body according to claim 5 does not require a tool such as a drill because the dividing means is composed of a male screw and a female screw. The mating connection can be arbitrarily removed.

  The pipe connection body according to claim 6 is configured such that, in addition to the effect of the pipe connection body according to any one of claims 1 to 5, an end portion of one connection portion protrudes from an end portion of another connection portion. By doing so, check the position of the connection end visually and tactilely when connecting the pipe and the connection part (especially when connecting the pipe connection body to the pipe without separating the plurality of connection parts). Therefore, it is possible to easily and quickly connect the pipe member and the connection portion.

Sectional drawing of the pipe connection body connected to the drain pipe in one Embodiment of this invention. The pipe connection body of FIG. 1 is shown, (a) is sectional drawing, (b) is a front view, (c) is a bottom view. The (a) AA sectional view and (b) BB sectional drawing of the pipe connection body of FIG. Schematic which showed the method of isolate | separating an outer side connection part and an inner side connection part in the pipe connection body of FIG. It is the schematic of the pipe connection body of FIG. 1 connected to another drain pipe, (a) is the pipe connection body connected to the large diameter pipe, (b) is an outer connection part and an inner connection part. A pipe connector that is connected to the pipe in a separated state. Schematic which shows the pipe connection body of the modification of this invention. Schematic which shows the pipe connection body of the modification of this invention. Schematic which shows the pipe connection body of the modification of this invention. Schematic which shows the pipe connection body of the modification of this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In addition, the shape of each figure referred in the following description is a conceptual diagram or a schematic diagram for explaining a suitable shape dimension, and a dimension ratio etc. do not necessarily correspond with an actual dimension ratio. That is, the present invention is not limited to the dimensional ratio in the drawings.

  As one embodiment of the present invention, a pipe connector used in a vent valve structure for eliminating negative pressure in a drain pipe and preventing leakage of odor from the drain pipe will be described. However, as long as the pipe connection body of the present invention is connected to a pipe material, its use function is not limited, and the use is not limited to the use of the embodiment (that is, the vent valve structure). The pipe connection body of the present invention includes, for example, a pipe joint body connected to a plurality of pipe materials to connect the pipe materials, a lid body connected to the pipe material end portion to close the pipe material, a piping box, and the like. It can be applied to any application as long as it is conceivable by those skilled in the art as long as it is included and connected to the pipe.

  FIG. 1 is a cross-sectional view of a vent valve structure 10 showing one usage mode of a pipe connector 100 disposed between a drain pipe P and a vent valve V. A bent connector C is connected in a sealed state at substantially the center of the pipe connector 100, and the pipe connector 100 and the vent valve V are connected via the bent connector C. Moreover, the inner side connection part 112 and the drainage pipe P which are extended below the pipe connection body 100 are connected in the airtight state. That is, in this vent valve structure 10, the drain pipe P and the vent valve V communicate with each other in a sealed state via the pipe connector 100, and the vent valve V eliminates negative pressure and eliminates odors from the drain pipe P. Provides a containment function. Hereinafter, the pipe connector 100 which is one embodiment of the present invention will be described in detail. In describing this embodiment, the vent valve V side is defined as the “upper” side, and the drain pipe P side is defined as the “lower” side.

  As shown in FIGS. 2A to 2C, the pipe connector 100 includes a disc-shaped base 101 having an upper surface 101 a and a lower surface 101 b, and an outer edge of the base 101 (of the plurality of connection portions 110). An outer connecting portion 111 formed as a vertically extending flange, an inner connecting portion 112 formed as a flange included in the outer connecting portion 111 (of the plurality of connecting portions 110) and extending downward from the base 101, and a base 101, and a connecting portion 120 positioned between the outer connecting portion 111 and the inner connecting portion 112. In the pipe connector 100 of the present embodiment, the outer connection portion 111 is located on the outermost side, and the inner connection portion 112 is located on the innermost side, but the outer connection portion and the inner connection portion of the present invention are It means a connection portion having a relative internal / external relationship, and it goes without saying that the present invention is not limited to this form.

  An opening 102 is formed at the center of the base 101, and the bent connector C (see FIG. 1) is connected to the opening 102 in a sealed state via an O-ring 130.

  The outer connection portion 111 has a cylindrical shape with an upper end and a lower end opened, and an end portion 111a to which a pipe material is connected is provided at the lower end. As shown in FIG. 2C, the outer diameter of the end 111a is R1, and can be connected to a pipe material (for example, P1 described later) having a diameter corresponding to the outer diameter R1 (or inner diameter). On the other hand, the inner connection portion 112 has a cylindrical shape with an open lower end, and an end portion 112a to which the pipe material P is connected is provided at the lower end. The outer diameter of the end 112a is R2 (<R1), and can be connected to a pipe material having a diameter (an inner diameter or an outer diameter) corresponding to the outer diameter R2. The outer connecting portion 111 and the inner connecting portion 112 are arranged in a concentric positional relationship so that the outer connecting portion 111 includes the inner connecting portion 112. Further, as shown in FIG. 2C, the vertical width (connection allowance) W1 of the outer connection portion 111 and the width (connection allowance) W2 of the inner connection portion 112 are equal, and the end portion 112a of the inner connection portion 112 is It protrudes below the end portion 111 a of the outer connection portion 111. In the pipe connector 100 of the present embodiment, R1 = 115 mm, R2 = 114 mm, and W1 = W2 = 50 mm are set, but the present invention is not limited to this, and the dimensions can be arbitrarily set. .

  As shown in FIGS. 2A to 2C, the connecting portion 120 is positioned between the outer connecting portion 111 and the inner connecting portion 112 of the base 101 so as to connect the outer connecting portion 111 and the inner connecting portion 112. . The connection part 120 is provided with a thin part 121 continuously formed in a circumferential shape along the outer periphery of the inner connection part 112. The thin portion 121 is disposed away from the inner connection portion 112 so that it can be easily separated by a tool such as a drill in a later-described separation step (see FIG. 4A). In addition, the thin portion 121 is formed at a position near the inner connecting portion 112 side from the center of the connecting portion 120. As will be described later with reference to FIG. 4C, when the connecting portion 120 is broken and the outer connecting portion 111 is separated from the pipe connecting body 100, more fragments of the connecting portion 120 extending outward from the inner connecting portion 112 are removed. This is to make it smaller. Furthermore, a plurality of (though not limited to six in this embodiment) thick portions 122 are provided at equal intervals on the thin portion 121 on the upper surface 101a side of the pipe connector 100. That is, the thin part 121 and the thick part 122 constitute a dividing means.

  FIG. 3A is a cross-sectional view of the thin portion 121. As shown in FIG. 3A, the thin wall portion 121 is formed by recessing the lower surface 101b side of the flesh portion of the connecting portion 120 in a V shape in cross section, and has a thickness d2. Although the thin wall portion 121 is separated by intentional local hitting with a hammer or the like, the thickness is set so as not to be easily broken by an impact in a normal use situation (for example, an impact on the entire pipe connector 100 due to a drop or the like). d2 is set. In the pipe connector 100 of the present embodiment, the thickness d1 of the base portion 101 (the connecting portion 120) is 2.5 mm, whereas the thickness d2 of the thin portion 121 is set to 0.5 mm. The dimensions of the pipe connector of the invention are not limited to this, and can be appropriately selected by those skilled in the art.

  FIG. 3B is a cross-sectional view of the thick portion 122. As shown in FIG. 3B, the thick portion 122 is formed on the upper surface side of the connecting portion 120 so as to reinforce the thin portion 121 continuously formed in the circumferential direction from the upper surface 101a side. The thick portion 122 is projected on the upper surface 101a so as to be raised with a predetermined thickness d3 (d3 is 2.0 mm in the present embodiment), and the size removed by drilling with a drill is set in the circumferential direction. And a predetermined length in the radial direction. Further, on the lower surface 101b side of the thick wall portion 122, a recess 123 having a circular shape in plan view into which a drill can enter is provided. The recess 123 is formed with the same depth (d1-d2) as the V-shaped groove of the thin portion 121. That is, the cross-section of the connecting portion 120 in the thick portion 122 is configured by the thicknesses of d1, d1 + d3, d2 + d3 (not considering the recess 124), d1 + d3, and d1 in order from the radially outer side (left side in FIG. 3B). It does not have a portion that becomes thin (d2 or less). Further, a recess 124 is formed at the center of the recess 123 so that a sharp drill bit tip is inserted. The recess 124 functions to position the tip of the bit of the drill when the thick portion 120 is removed as will be described later.

  Although it demonstrated with reference to Fig.3 (a) and (b), the structure of the thin part of this invention and a thick part is not limited to this embodiment. For example, as the shape of the thin portion, an arbitrary shape (U shape, U shape, etc.) can be selected instead of the V shape. Moreover, the thick part should just be formed thicker than a thin part, for example, it forms so that it may have the same thickness as the base 101, without forming the hollow 123 (namely, as a part which is not forming the thin part). You can also. Furthermore, in the present embodiment, the lower surface 101b side of the base 101 is recessed to form a thin portion 121, and the upper surface 101a side of the base 101 is protruded to form a thick portion 122. You may form a thin part and a thick part by making it the opposite structure (a recessed part on an upper surface, and a convex part on a lower surface), or providing a recessed part and a convex part on the same surface.

  In addition, the pipe connection body 100 of this embodiment is integrally molded with polyvinyl chloride (PVC) resin. However, the material, dimensions, and manufacturing method of the pipe connector of the present invention are not limited to this, and can be arbitrarily selected by those skilled in the art.

  Next, a method for separating the outer connection portion 111 and the inner connection portion 112 in the pipe connection body 100 of the present embodiment will be described with reference to FIGS.

  As shown in FIG. 4A, the bit of the drill D is arranged from the lower surface 101 b side in the cylindrical recess 123 of the thick portion 122. At this time, the bit tip of the (manual or electric) drill D is inserted into the recess 124 and positioned. Next, the drill D is operated, and the tip of the drill is advanced in the vertical direction, so that the thick wall portion 122 located on the thin wall portion 121 is drilled from the lower surface 101b side. By this drilling operation, the thin portion 121 continuous in the circumferential direction is divided. When the drilling operation is similarly performed for all (six) thick portions 122, there is no thick portion in the circumferential direction of the thin portion 121, and the outer connecting portion 111 and the inner connecting portion 112 become the thin portion 121. It will be in the state (refer FIG.4 (b)) connected only by. Then, as shown in FIG. 4B, when a vertical impact is applied to the inner connecting portion 112 with a hammer or the like, the thin portion 121 is broken and the connecting portion 120 is divided. And the outer side connection part 111 and the inner side connection part 112 are isolate | separated like FIG.4 (c).

  FIGS. 5A and 5B show an example of use of the pipe connector 100 of the present embodiment (in a mode different from that described in FIG. 1).

  FIG. 5A shows a vent valve structure 10-2 in which a pipe connector 100 is connected to a drain pipe P1 having a diameter larger than that of the drain pipe P of FIG. As shown to Fig.5 (a), the connection end of the drain pipe P1 is connected to the outer side connection part 111, and the inner side connection part 112 is not used. Since the outer connecting portion 111 and the inner connecting portion 112 are firmly and integrally connected by the connecting portion 120 (the thin portion 121 and the thick portion 122), the gas or the like is not leaked from the connecting portion 120 as shown in FIG. The vent valve structure (a) exhibits the same function as the vent valve structure shown in FIG.

  FIG. 5B shows a vent valve structure 10-3 in which the pipe connector 100 separated by the method described in FIG. 4 is connected to the drain pipe P. As shown in FIG. 5B, the end of the drain pipe P is connected to the inner connection portion 112 in a state where the outer connection portion 111 (broken line) is removed from the pipe connection body 100. In this case, the inner connection portion 112 serves as the outer wall of the pipe connection body 100 instead of the outer connection portion 111, and exhibits the function of the vent valve structure equivalent to the vent valve structure 10 of FIG. 1 in a more compact form.

  That is, in the pipe connection body 100 of the present embodiment, in addition to the usage pattern such as the vent valve structure 10 of FIG. 1, when the diameter of the pipe material to which the pipe connection body 100 is connected is larger, the pipe connection body 100 of FIG. When the usage pattern such as the ventilation valve structure 10-2 and the pipe connector 100 are arranged in a narrow space, the usage pattern such as the ventilation valve structure 10-3 in FIG. Can be arbitrarily selected.

  In the vent valve structure 10 (FIG. 1), 10-2 (FIG. 5 (a)), and 10-2 (FIG. 5 (b)), the connecting portions 111 and 112 are inserted on the inner surfaces of the drain pipes P and P1. Although it fits, you may connect so that the drain pipes P and P1 may be inserted by the inner surface side of each connection part 111 and 112. FIG.

  Hereinafter, the effect of the pipe connection body 100 of one Embodiment of this invention is demonstrated.

  In the pipe connection body 100 of the present embodiment, the outer connection part 111 and the inner connection part 112 are concentrically arranged so that they can be connected to the connection ends of different types of drain pipes (pipe materials) P and P1. Either the outer connection part 111 or the inner connection part 112 can be selected and connected to the drain pipe P or P1. That is, since it is possible to connect to at least two types of pipe materials (P, P1) by using the pipe connection body 100 of the present embodiment, it is not necessary to prepare a plurality of types of pipe connection bodies in advance during construction. Good. Therefore, the burden on the installer who has conventionally carried a plurality of types of pipe connectors is reduced, and the cost for preparing the plurality of types of pipe connectors is reduced.

  In general, since the drain pipe is installed in a very narrow space such as the back of the wall, it may be difficult to install due to the size of the pipe connector itself, or the work efficiency may be reduced. On the other hand, in the pipe connection body 100 of this embodiment, the thin part 121 and the thick part 122 are provided as a dividing part in the connection part 120 which connects the outer side connection part 111 and the inner side connection part 112 which adjoin each other. . Thereby, when connecting the pipe material P to the inner side connection part 112, the outer side connection part 111 can be made to detach | leave from the pipe connection body 100. FIG. That is, in the deformed tube connection body 100, the inner connection portion 112 constitutes the outer surface of the tube connection body 100. Therefore, if necessary, the pipe connector itself can be deformed into a more compact form, and workability in a narrow space is improved.

  Further, the thin wall portion 121 is continuously formed in the circumferential direction so that it can be easily broken, and the thick wall portion 122 that reinforces the thin wall portion 121 is partially formed on the circumference so that the connecting portion 120 is not easily broken. Has been. That is, when it is not necessary to separate the inner and outer connection portions 111 and 112, the thick portion 122 formed in the connection portion 120 firmly connects the adjacent connection portions 111 and 112. On the other hand, when the adjacent connecting portions 111 and 112 are separated, the thick portion 122 is removed by the drill D and the thin portion 121 is broken. When the thick part 122 is removed by the drill D, the positioning part 124 is provided in the thick part 122, so that the builder inserts the tip of the drill D into the positioning concave part 124 so that the drill D is inserted. When rotated, the axis of the drill D proceeds vertically without being shaken in the recess 123, and the thick portion 122 can be reliably drilled. That is, by the simple work described in FIGS. 4A to 4C, the thick portion 122 is removed by the drill D, the connecting portion 120 is divided, and the outer connecting portion 112 is quickly removed from the inner connecting portion 111. Can be separated. Therefore, the pipe connection body 100 according to the present invention can be easily and quickly transformed into a compact form according to the construction situation while maintaining robustness with a simple and easily manufactured structure that can be integrally formed.

  And in the pipe connection body 100 of this embodiment, since the edge part 112a of the inner side connection part 112 protrudes in the side view from the edge part 111a of the outer side connection part 111, the connection end of the drain pipe P And the end 112a of the inner connection part 112 can be easily aligned, and the connection work between the pipe connection body 100 and the pipe material is facilitated. That is, when the connection end of the inner connection portion and the connection end of the outer connection portion are aligned in a single plane, the connection end of the inner connection portion cannot be seen from the side, and there is no bulge. It is difficult to confirm the position by touch. For this reason, it takes time to align the pipe and the connecting portion, and the workability may be reduced. On the other hand, in the tube connection body 100 of the present embodiment, the position of the end 112a can be confirmed visually and tactilely when the tube P and the inner connection portion 112 are connected due to the above structure. The end portion of P and the inner connecting portion 112 can be easily and quickly inserted.

(Modification 1)
The dividing means of the present invention is not limited to the dividing means (thin wall portion 121 and thick wall portion 122) of the embodiment. For example, FIG. 6 shows a pipe connector 100A according to another embodiment of the present invention. The tube connector 100A includes a base portion 101A, an outer connection portion 111A, an inner connection portion 112A, and a connecting portion 120A, as in the embodiment. Description of the configuration common to the pipe connector 100 of one embodiment is omitted. In this embodiment, instead of the thin wall portion 121 and the thick wall portion 122, a female screw 121A and a male screw 122A are formed in the connecting portion 120A as a dividing means. A female screw 121A is provided on the inner surface on the outer connecting portion 111A side, and a male screw 122A is provided on the outer surface on the inner connecting portion 112A side. That is, the pipe connector 100A is configured such that both of the members are unscrewed or screwed by rotating the member on the inner connector 112A side in the forward or reverse direction with respect to the member on the outer connector 111A side. ing. Since the outer connecting portion 111A and the inner connecting portion 112A can be coupled in a sealed state via the O-ring 130A, even when connecting a pipe to the inner connecting portion 112A, without leaking gas or the like from the connecting portion 120A, A function similar to that of the pipe connector 100 can be exhibited. The pipe connector 100A of this embodiment is inferior in terms of manufacturability because it cannot be integrally formed as compared with the pipe connector 100. However, since the inner and outer connection portions can be separated and then joined again, it is excellent in reusability and is advantageous in that it is not necessary to use a tool for the separation.

(Modification 2)
FIG. 7 shows a pipe connector 100B according to another embodiment of the present invention, and the description of the configuration common to the pipe connector 100 of one embodiment is omitted. In this pipe connecting body 100B, the dividing means provided in the connecting portion 120B includes holes 121B and 122B provided in the outer connecting portion 111B and the inner connecting portion 112B, and screws 130B passing through the holes 121B and 122B, It is composed of The holes 121B and 122B are hermetically sealed with a rubber packing 131B or the like. That is, the pipe connector 100 </ b> B of Modification 2 can achieve the same effects as those of the embodiment 100. As described above, the dividing means of the present invention is not limited to the embodiment, and can be selected from a plurality of means conceivable by those skilled in the art as long as the connecting portion can be divided to separate the connecting portions. is there.

(Modification 3)
In the embodiment, for the sake of brevity, the pipe connector 100 including the two large and small inner and outer connecting portions 111 and 112 has been described. However, the number of connecting portions can be arbitrarily selected. For example, as illustrated in FIG. 8, the pipe connector 100C includes n connection portions 110-1C to 110-nC (the innermost connection portion is 110-1C and the outermost connection portion is 110-nC). Each of the adjacent connecting portions 110-1 to nC is connected by a connecting portion 120C, and the connecting portion 120C can be cut by a cutting means (thin wall portion 121C and thick wall portion 122C). That is, between the connection part 110-iC (i <n) selected (relatively inner side) and the relatively outer connection part 110- (i + 1) C selected for connection to the connection end of the predetermined pipe. By disconnecting the connecting portion 120C, the plurality of outer connecting portions 110- (i + 1) C to 110-nC can be detached from the pipe connecting body 100C while leaving the inner connecting portion 110-iC. Therefore, in the pipe connection body 100C of this embodiment, by arranging each connection portion in such a nested structure, it is possible to deal with pipes of at least two types of diameters, and the above-described pipe connection. Like the body 100, it can be transformed into a compact form as needed.

(Modification 4)
Moreover, the shape of the connection part of this invention is not limited to a cylindrical shape. For example, like the pipe connection body 100D shown in FIG. 9A, the outer connection portion 111D may be a square shape, and the inner connection portion 112D may be a round shape. . In this case, it is possible to deal with two types of pipe materials having a rectangular cross section and a circular shape.

(Modification 5)
In the pipe connection body 100 according to the embodiment, the outer connection portion 111 and the inner connection portion 112 are arranged concentrically, but the present invention is not limited to this. For example, the pipe connector 100E shown in FIG. 9B includes a first connection part 110-1 having a first diameter and a second connection part 110-2 having a second diameter different from the first diameter. The first connection part 110-1 and the second connection part 110-2 are connected by the connection part 120E so as to be parallel to each other (not inside / outside relationship). And the thin part 121E and the thick part 122E as a dividing means are formed in the said connection part 120E, and the adjacent connection parts 110-1E and 110-2E are isolate | separated by the same procedure demonstrated in FIG. 4, respectively. can do. That is, this pipe connection body 100E can be connected to a plurality of shapes of pipe materials and can be deformed into a compact form by selectively removing one of the connection parts 110-1 or 110-2 that is not used. In addition, although the opening in each connection part was abbreviate | omitted, an opening etc. can be formed arbitrarily as needed.

  The present invention is not limited to the above-described embodiments and modifications, and can be implemented in various modes as long as they belong to the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 100 Pipe connection body 110 (multiple) connection part 111 Outer connection part 111a End part 112 Inner connection part 112a End part 120 Connection part 121 Thin part (parting means)
122 Thick part (sectioning means)
121A Female thread (Parting means)
122A male screw (parting means)
123 Recess 124 Recess P, P1 Drain pipe (pipe material)
D drill

Claims (6)

A pipe connector that can be connected to a plurality of types of pipe materials having different shapes at the connection end,
A plurality of connecting portions capable of being connected to the plurality of differently shaped connection ends;
A connecting portion for connecting the plurality of connecting portions;
A dividing means that is formed in the connecting portion, and is capable of dividing the connecting portion in order to separate the plurality of connecting portions;
A pipe connector comprising: The plurality of connecting portions have an outer connecting portion and an inner connecting portion provided inside the outer connecting portion, and the connecting portion connects the outer connecting portion and the inner connecting portion,
The pipe connection body according to claim 1, wherein the dividing means detaches the outer connection portion from the pipe connection body by dividing the connecting portion.   The dividing means includes a thin portion continuously formed on the connecting portion and at least one thick portion partially formed on the thin portion, and adjacent connections are made by removing the thick portion. The pipe connector according to claim 1 or 2, wherein the portion is separated.   The pipe connection body according to claim 3, wherein the thick portion is formed in a size that can be removed by drilling with a drill, and includes a positioning recess into which the tip of the drill is inserted.   The dividing means includes a female screw formed on the outer connecting portion side of the connecting portion and a male screw formed on the inner connecting portion side of the connecting portion, and the outer connecting portion and the inner connecting portion. The pipe connector according to claim 2, wherein the pipe connector can be screwed and screwed.   6. The device according to claim 1, wherein an end portion of one connection portion of the plurality of connection portions is disposed so as to protrude from an end portion of another connection portion. Pipe connection.

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