JP5706720B2 - Resin pipe with joint for temporary piping, connection structure of resin pipe with joint for temporary piping, temporary piping pipeline and metal fitting - Google Patents

Description

  The present invention relates to a resin pipe with a joint for temporary piping that connects a water pipe and the like to form a pipe, and in particular, a joint optimal for a temporary pipe for preventing water from being cut off during water pipe renewal or repair work. The present invention relates to a resin pipe, a connection structure for connecting the resin pipe with a joint, a temporary pipe line, and a metal joint.

  Conventionally, as a pipe joint structure such as this kind of water pipe, a polyethylene pipe formed by abutting and fusing a polyethylene flange connecting portion having a fastening flange to both ends of a polyethylene pipe, A two-piece connection fitting that is arranged in series so that each flange faces each other, and a ring-shaped packing material is interposed on the outer peripheral surface of both the flanges that face each other. By tightening in the diameter reducing direction, the flanges are tightened and fixed in the pulling direction, and all the components of the temporary water pipe are sequentially sealed through ring-shaped packing materials by tightening the connection fittings. The thing of the structure connected to a shape and dissociating freely is known (for example, refer patent document 1).

  Moreover, the conventional temporary water pipe uses a pipe comprising a polyethylene pipe main body and a polyethylene connection head, and the connection head is directly coupled to both ends of the pipe main body by a bad fusion method. Then, there is a ring-shaped locking narrow groove on the outer periphery of the tip of the connection head, and the pipes are connected to each other by using appropriate connecting tools using the locking narrow grooves. For example, see Patent Document 2).

  In addition, when replacing existing water pipes with existing water pipe construction, temporary water pipes are laid in order to avoid inconvenience such as water outages to neighboring residents. In this case, a steel pipe and a polyethylene pipe (PE pipe) are connected as a temporary water pipe by a joint or the like to constitute a temporary pipe. PE pipes are lightweight and have good workability, and are flexible, follow the ground shape and have excellent earthquake resistance, and steel pipes have the advantages of being heavy and poor in workability but high in strength.

Japanese Patent No. 4137562 JP 2002-327859 A

  By the way, in the techniques described in Patent Documents 1 and 2, workability is poor due to attachment of packing materials, tightening of bolts of connection fittings, etc., and since the polyethylene flanges are connected by butting, the strength is small and the pipe is bent. In addition, there is a problem that the flange is easily deformed when the tension is applied or the water is easily leaked. In addition, since it is necessary to weld the pipe end connection portion to the pipe end by a butt fusion method, there is a problem that it cannot be applied to a cut tube. Furthermore, when a temporary pipe line is formed using a steel pipe, there is a problem that when the diameter is increased, the weight is large and the workability is poor, and it is difficult to remove the pipe when removing it. In addition, when reusing the pipe body, joints, and other members that make up the temporary pipe line, problems such as damage to each member occur, and temporary pipes that use pipe bodies and joints that are optimal for reuse. There was no road.

  The present invention has been made in view of such a problem, and the object of the present invention is that the strength of the connecting portion between the pipes is large, the vibration resistance is excellent, the connecting work is easy, and water leakage occurs. An object of the present invention is to provide a resin pipe with a joint for temporary piping, a connection structure of a resin pipe with a joint for temporary piping, a temporary pipe line, and a metal joint that are unlikely to occur and can be easily reused. In addition, when members such as pipe bodies and joints that make up temporary piping pipelines are removed, each member is easy to reuse, and it is difficult for each member to be scratched. Stable quality when reused. Is to provide a resin pipe with a joint for temporary piping.

  In order to achieve the above object, a resin pipe with a joint for temporary piping according to the present invention comprises a synthetic resin pipe body, a receiving member and an insertion member, and a pipe can be connected by joining the two members. A metal pipe with a joint for temporary piping, in which the receiving member is fixed to one end of the pipe body, and the insertion member is fixed to the other end. The mouth member is transported, piped, disassembled, stored and repeatedly used while being mounted on the pipe body. In the resin pipe with a joint for a temporary pipe constructed in this way, the labor of removing the temporary pipe line is carried out because the receiving member and the insertion port member are transported / piped / disassembled / stored while being attached to the pipe body. In addition, the reuse labor can be reduced, and the temporary piping pipeline can be efficiently installed and removed.

  As a preferable specific aspect of the resin pipe with a joint according to the present invention, the receiving member includes an insertion portion into which the pipe main body is inserted, and an axial direction to receive the insertion member in communication with the insertion portion. A receiving port portion having an inner peripheral surface extending to the insertion port, and the insertion port member includes an insertion portion into which the tube main body is inserted, and a resin pipe with a joint for temporary piping connected to the insertion portion. And an insertion port portion having an outer peripheral surface facing the inner peripheral surface in a state of being inserted into the receiving port portion, and an end surface of the tube body is included in the insertion portion. In the resin pipe with a joint for temporary piping of the present invention configured as described above, a lightweight synthetic resin pipe body is inserted into a receiving portion of the receiving member using a receiving member or an inserting member that is a metal joint. Inserts the insertion part of the mouth member, makes the outer peripheral surface of the receiving part and the inner peripheral surface of the insertion part face each other, and the end face of the pipe body is contained in the inserted part, and multiple pipe bodies are firmly connected Thus, a temporary piping pipeline can be formed, and deformation can be suppressed even if an external force is applied to the temporary piping pipeline due to an earthquake or the like.

  Moreover, as another preferable specific aspect of the resin pipe with a joint according to the present invention, one of the receiving member or the insertion member has an engaging claw portion, and the other of the receiving member or the insertion member is the above-mentioned It has a stopper that is engaged with the engaging claw part by normal rotation and released by reverse rotation, and has a structure that constitutes a bayonet connecting part by cooperation of the engaging claw part and the stopper metal. . According to this configuration, by rotating the stopper metal forward, one engagement claw portion of the receiving port member or the insertion port member can be engaged with the other, and can be released by reversing. The resin pipe with a joint can be connected with a simple operation.

  The receptacle member has an internal projection that protrudes between the insertion portion and the receptacle portion, and the insertion member has an internal projection that protrudes between the insertion portion and the insertion portion. Preferably, the internal projections of the receiving port member and the insertion port member are formed in a circumferential shape along the inner wall of the inserted portion, and are formed with an inner diameter smaller than the outer periphery of the tube body. And the said resin pipe with a joint for temporary piping is provided with the cylindrical member located in the edge part inner periphery of the said pipe | tube main body, and it is preferable that the edge part of this cylindrical member contacts the said internal protrusion. In the resin pipe with a joint for temporary piping configured in this way, a cylindrical member is inserted into the end of the pipe body, and the end is brought into contact with the circumferential internal protrusion of the port member or the insertion port member. The shaft cores can be aligned, and the pipe bodies can be easily connected. In addition, the material of a cylindrical member can use appropriate materials, such as a metal.

  Furthermore, as another preferable specific aspect of the joint-attached resin pipe according to the present invention, the receptacle member has a water stop member on an inner peripheral surface of the inserted portion, and the water stop member is the pipe main body. The insertion port member has a water stop member on the inner peripheral surface of the inserted portion, the water stop member contacts the outer peripheral surface of the pipe body, A fixing ring connected to the outer peripheral surface on the side opposite to the receiving portion and a claw ring inside the fixing ring, and by pressing the claw ring against the outer peripheral surface of the tube main body by the fixing ring, The insertion port member has a fixing ring connected to an outer peripheral surface opposite to the insertion port portion and a claw ring therein, and the fixing ring causes the claw ring to be attached to the outer peripheral surface of the tube body. It is characterized by being fixed to the end of the tube body by pressing. According to this structure, a nail | claw ring can be pressed on the outer peripheral surface of a pipe body with a fixing ring, and it can connect firmly.

  Furthermore, it is preferable that the said pipe | tube main body equips an outer peripheral surface with the coating which has a weather resistance. In a resin pipe with a joint for temporary piping constructed as described above, a pipe body made of synthetic resin is connected by a metal joint to form a temporary pipe pipe such as a water pipe, and this pipe is buried in the soil. Even if it is not exposed, it is possible to prevent a decrease in strength of the resin pipe body due to external light or weather. The tube body may be a deformed tube. Even in the case of resin pipes that are not straight pipes such as cheese and elbows, and irregular shaped pipes such as specially shaped resin pipes, a temporary pipe line can be easily fixed by fixing the receiving member or the insertion port member to the end as a metal joint. Can be configured.

  In the connection structure of the resin pipe with a joint for temporary piping according to the present invention, the receiving port member and the insertion port member are formed between the outer peripheral surface of the insertion port portion and the receiving port portion when the insertion port portion is fitted to the reception port portion. A water stop member is interposed between the inner peripheral surface, and the stopper member and the insertion port are formed by engaging an engagement claw portion provided on one of the reception port member and the insertion port member to the other side by the stopper. It is characterized by connecting the members. In the connection structure of the resin pipe with a joint configured as described above, water leakage is prevented by a water-stopping member such as an O-ring mounted between the outer peripheral surface of the insertion port and the inner peripheral surface of the receiving port. Since the engaging claw portion is engaged to connect the receiving port member and the insertion port member, the connecting operation becomes easy and can be reliably connected.

  The fastener is preferably formed with a plurality of operation projections on the outer periphery thereof. According to this structure, a pipe | tube main body can be easily connected by putting a finger | toe on the some protrusion for operation of an outer periphery, and rotating a fastener easily. Further, it is preferable that the stopper metal is prevented from rotating by a rotation preventing means that engages with at least one of the receiving member or the insertion member. According to this configuration, the stopper is not inadvertently rotated, and the connected state can be stabilized.

  The temporary piping pipeline according to the present invention is configured using the resin pipe with a joint for temporary piping described in any of the above. According to this configuration, a light and deformable resin pipe is connected by a strong metal joint, and even if an external force is applied due to an earthquake or the like, water leakage due to deformation is prevented, and a stable temporary pipe line is formed. Can be configured. Moreover, the metal coupling which concerns on this invention is used for the resin pipe with a joint for temporary piping in any one of the above. According to this configuration, the temporary pipe line can be easily configured by attaching the metal joint to the end portion of the synthetic resin resin pipe.

  The resin pipe with a joint for temporary piping of the present invention and the connection structure of the resin pipe with a joint are easy to construct because a lightweight synthetic resin pipe is connected with a metal joint, and an external force is applied to the temporary pipe line due to an earthquake or the like. Even if this works, it is possible to prevent the pipe line from being deformed and causing water leakage. In addition, a water stop member such as an O-ring is provided on the inner peripheral surface of the inserted portion, and the water stop member is in contact with the outer peripheral surface of the pipe body, and the inner peripheral surface of the insertion port portion and the inner portion of the receiving port portion. Since a water stop member such as an O-ring is interposed between the peripheral surface and the peripheral surface, water leakage can be prevented. Further, since the receiving member and the insertion member are transported, piped, disassembled and stored in a state where they are mounted on the pipe main body, the reuse can be performed efficiently.

1 shows an embodiment showing a coupling structure of a resin pipe with a joint according to the present invention, in which (a) is a partially broken front view, (b) is a sectional view taken along line D1-D1, and (c) is D2- D2 line sectional drawing. The receptacle member used by the connection structure of FIG. 1 is shown, (a) is a left view, (b) is a partially broken front view along the D3-D3 line, (c) is a right view, (d). Is an essential part arrow view along the D4-D4 line. 1. It has the insertion port member used with the connection structure of FIG. 1, (a) is a left view, (b) is a partially broken front view along the D5-D5 line, (c) is a right view. 1 shows a fastener used in the connection structure of FIG. 1, wherein (a) is a left side view, (b) is a partially broken front view along line D6-D6, (c) is a right side view, and (d). Is an arrow view along the line D7-D7. The fixing ring used by the connection structure of FIG. 1 is shown, (a) is a left view, (b) is the partially broken front view which followed the D8-D8 line, (c) is a right view. 1 shows a claw ring used in the connection structure of FIG. 1, (a) is a left side view, (b) is a cross-sectional view taken along line D9-D9, and (c) is a receiving member, a claw ring, and a fixing portion of a fixing ring. FIG. 6 is a cross-sectional view of a main part showing details of a contact portion between the inner core and the inner protrusion. The inner core used by the connection structure of FIG. 1 is shown, (a) is the front view which fractured | ruptured the part, (b) is a right view. 1 shows the rotation preventing means used in the connecting structure of FIG. 1, wherein (a) is a perspective view of the stopper, (b) is a plan view thereof, (c) is a left side view with a part broken away, and (d) is ( The principal part sectional drawing which follows the D10-D10 line | wire of a), (e) is a perspective view which shows a binding band. The system lineblock diagram of the temporary piping pipeline constituted using the resin pipe with a joint concerning the present invention, and its connection structure.

  Hereinafter, an embodiment of a resin pipe with a joint according to the present invention and a connection structure thereof will be described in detail with reference to the drawings. FIG. 1 is a front view and a cross-sectional view, partially broken, showing a state in which the jointed resin pipe according to the present embodiment is connected, and FIG. 2 is a left side view of a receiving member as a joint used in FIG. FIG. 3 is a partially broken front view, a right side view of an essential part, and FIG. 3 is a left side view, a partially broken front view, and a right side view of an insertion member as a joint used in FIG. FIG. 5 is a left side view, a partially broken front view, and a right side view of the main part of the stopper for connecting the receiving member and the insertion member, and FIG. 5 is a view for fixing the receiving member and the insertion member to the pipe body. Fig. 6 is a left side view of the ring, a partially broken front view, and a right side view. Fig. 6 is a left side view of the claw ring pressed against the pipe body by the fixing ring. FIG. 8 is a partially cut front view and a right side view of the inner core that fits into the periphery, and FIG. Elevational view, partially broken left side view, cross sectional view, a perspective view of a binding band.

  1 to 8, pipe main bodies 1 and 2 are formed of synthetic resin pipes, for example, polyethylene extruded pipes having nominal diameters of 100 mm, 75 mm, 50 mm, and the like. The pipe main bodies 1 and 2 are lighter than metal steel pipes, and have a lower strength than steel pipes. In this embodiment, in order to form a temporary water pipe in order to replace an old water pipe without breaking the water pipe, a temporary pipe pipe is formed by connecting a synthetic resin pipe body with a metal joint. It is for forming a path.

  The receptacle member 10 is fixed to one end of the tube body 1 as one of the joints, and the insertion member 20 is fixed to the end of the other tube body 2 as the other of the joints. The receptacle member 10 may be fixed to one end of one pipe body, and the inlet member 20 may be fixed to the other end of the pipe body to constitute the joint-attached resin pipe. The receptacle member 10 is fixed as a joint to one end (right end) of the tube body 1, and the insertion member 20 is fixed to the other end (left end) of the tube body 2 as the other joint. The connection structure of the resin pipe with a joint is comprised by inserting and connecting the insertion port part 21 formed in the insertion port member 20 to the receiving port part 11 made. The receiving port member 10 and the insertion port member 20 are made of metal, specifically made of aluminum casting, cast iron or the like, and have a larger weight and higher strength than the tube bodies 1 and 2 made of synthetic resin. The resin pipe with a joint for temporary piping in which the receiving port member 10 and the insertion port member 20 are mounted on the pipe main bodies 1 and 2 is transported, piping, disassembled, stored, and repeatedly used in the mounted state.

  As shown in FIGS. 1 and 2, the receiving member 10 is fixed in a state where the end of the tube main body 1 is inserted into a cylindrical cylindrical portion 12 located on the outer peripheral side of the tube main body 1. An internal passage 11a communicating with the inserted portion 12a is formed, and a receiving port portion 11 having an inner peripheral surface extending in the axial direction so as to communicate with the internal passage 11a and receive the insertion port member 20 is formed. Yes. A circular inner peripheral protrusion 13 having an inner diameter smaller than the outer diameter of the tube main body 1 is formed as an internal protrusion protruding in the inner peripheral direction at the back of the inserted portion 12a, and is opposite to the cylindrical portion 12 of the inner peripheral protrusion 13. A receiving port portion 11 that receives the insertion port member 20 is formed in the axial direction. When the end of the tube main body 1 is inserted into the inserted portion 12a of the receptacle member 10, the end surface of the tube main body 1 is included in the inserted portion 12a.

  That is, the inner peripheral protrusion 13 projects in a ring shape at the intermediate portion of the inner wall of the cylindrical portion 12, and the end of the tube body 1 is inserted and fixed to the inserted portion 12 a on one side of the inner peripheral protrusion 13. The insertion port 21 of the insertion port member 20 fixed to the other pipe body 2 is inserted into the receiving port 11 on the other side of the circumferential protrusion 13. The inner peripheral projection 13 has a configuration in which the tip abuts when the tube body 1 is inserted into the inserted portion 12a, and has a function of confirming that the tube body 1 has been inserted reliably. In addition, a circumferential step 13 a is formed on the inner circumferential protrusion 13. A concave groove 12b is formed on the inner peripheral surface of the cylindrical portion 12 along the circumference, and an O-ring 14 is inserted into the concave groove as a water stop member that contacts the outer peripheral surface of the tube body 1. Yes.

  The receiving port portion 11 is formed on the open end portion side of the receiving port member 10 fixed as a joint to the end portion of the pipe body 1, and a flange portion 15 is formed in the outer peripheral direction along the end surface of the receiving port portion 11. The flange portion 15 functions as a bayonet connecting portion that connects the receiving port member 10 fixed to the tube main bodies 1 and 2 and the insertion port member 20 in cooperation with the stopper 30. As shown in FIG. 2 (c), the flange portion 15 is composed of four circumferential engaging claws 15a. Between the four engaging claws 15a, 4 of a fastener 30 described later is provided. A notch 15b into which one locking claw 33 can enter is formed, and one locking claw 15a is formed with an engagement recess 15c that engages a stopper 35 that is a rotation preventing means described later. The end surface on the open side of the engaging claw portion 15a is a flat surface, and a tapered surface 15d is formed on the inner surface on the opposite side of the engaging claw portion 15a.

  At the end on the opposite side of the receiving member 10, that is, the end on the tube main body 1 side, there are four locking claws 16 with which a fixing ring 18 (described later) for fixing the receiving member 10 to the tube main body 1 is engaged. It is formed extending in the outer circumferential direction. The locking claw 16 is formed with a predetermined width and thickness in the outer peripheral direction in the vertical and horizontal directions, and has a notch 16a between the four claws, and has a shape for receiving the locking claw 18b of the fixing ring 18. It has become. Further, a positioning recess 16b for positioning the fixing ring 18 is formed in one upper locking claw 16.

  The receiving member 10 includes a claw ring 17 in contact with the end surface of the cylindrical portion 12 opposite to the receiving portion 11, and a fixing ring 18 connected to the outer peripheral side of the claw ring 17 and the cylindrical portion 12. 1 is fixed to the end of the tube body 1 by pressing against the outer peripheral surface of the tube 1. As shown in FIG. 5, the fixing ring 18 has a ring shape, and has an opening 18 a that receives the four locking claws 16 of the receiving member 10, and a locking claw 18 b with which the locking claw 16 engages. It is formed to protrude in the inner circumferential direction. In the fixing ring 18, four locking claws 18b formed on the inner peripheral portion and the locking claws 16 of the receiving member 10 overlap each other, and a positioning bolt 18e (see FIG. 1) is inserted into one large-diameter screw hole 18d. Is fixed to the tip of the cylindrical portion 12 of the receptacle member 10 by being screwed. The positioning bolt 18e screwed into the large-diameter screw hole 18d is configured to engage with a positioning recess 16b formed in one of the locking claws 16 of the receiving member 10.

  The claw ring 17 is made of a synthetic resin such as Duracon and is formed in a circumferential shape. As shown in FIG. 6, a claw ring 17 is formed by cutting a part of the circumference, and elastic deformation in the reduced diameter direction is caused. It is possible. A plurality of circumferential claws 17 b project from the inner peripheral surface of the claw ring 17, and the outer peripheral surface is formed into a tapered surface whose outer diameter gradually increases toward the end of the tube body 1. The fixing ring 18 positioned on the outer peripheral side of the claw ring 17 and connected to the receiving member 10 has a tapered surface 18f that comes into contact with the tapered surface on the outer periphery of the claw ring 17, and pushes the claw ring 17 along the tapered surface. The claw ring 17 is configured to press the tube main body 1. The end surface on the large diameter side of the claw ring 17 is configured so that the end surface of the cylindrical portion 12 of the receiving member 10 opposite to the receiving port portion 11 is in contact with each other, and the outer diameters of both end surfaces are substantially equal.

  As shown in FIGS. 1 and 3, the insertion member 20 is fixed in a state where the end of the tube body 2 is inserted into the cylindrical cylindrical portion 22 located on the outer peripheral side of the tube body 2. 22a is formed, an internal passage 21a communicating with the insertion portion 22a is formed, and an insertion port portion 21 having an outer peripheral surface facing the inner peripheral surface in a state of being inserted into the receiving port portion 11 is formed. The insertion port 21 is set to have an inner diameter that can be inserted into the receiving port 11 of the receiving member 10. The internal passage 21 a opens at the end face of the insertion opening 21. A circular inner peripheral protrusion 23 having an inner diameter smaller than the outer diameter of the tube main body 2 is formed as an internal protrusion protruding in the inner peripheral direction at the back of the inserted portion 22a. When the end portion of the tube body 2 is inserted into the insertion portion 22a of the insertion port member 20, the end surface of the tube body 2 is included in the insertion portion 22a.

  That is, the inner peripheral projection 23 protrudes in a ring shape at the middle portion of the inner wall of the cylindrical portion 22 and is fixed in a state where the end of the pipe body 2 is inserted into the inserted portion 22a on one side of the inner peripheral projection 23, The insertion port 21 on the other side of the inner peripheral projection 23 is configured to be inserted into the receiving port 11 formed in the receiving port member 10 fixed to the other pipe body 1. The inner peripheral projection 23 has a configuration in which the tip abuts when the tube main body 2 is inserted into the inserted portion 22a, and has a function of confirming that the tube main body 2 has been inserted reliably. Further, a circumferential step portion 23a is formed on the inner peripheral protrusion 23 as an internal protrusion. Then, a concave groove 22b is formed along the circumferential shape on the inner peripheral surface of the cylindrical portion 22, and an O-ring 24 is inserted into the concave groove as a water stop member that contacts the outer peripheral surface of the tube body 2. Yes.

  The insertion port portion 21 is formed on the open end portion side of the insertion port member 20 fixed as a joint to the end portion of the pipe body 2, and the root of the insertion port portion 21, that is, the cylindrical portion 22 and the insertion port portion 21. A flange portion 25 is formed so as to protrude in the outer circumferential direction. The flange portion 25 is supported by the stopper 30 that functions as a bayonet connecting portion for connecting the tube main bodies 1 and 2. As shown in FIGS. 3B and 3C, the flange portion 25 is formed over the entire circumference in the outer peripheral direction from between the cylindrical portion 22 and the insertion port portion 21.

  Four locking claws with which a fixing ring 28 (to be described later) for fixing the insertion port member 20 to the tube main body 2 is engaged with the opposite end of the insertion port member 20, that is, the end on the tube main body 2 side. 26 extends in the outer peripheral direction. The locking claw 26 is formed with a predetermined width and thickness in the outer peripheral direction in the up / down / left / right directions, and has a notch 26a between the four claws, and has a shape for receiving the locking claw 28b of the fixing ring 28. It has become. Further, a positioning recess 26b for positioning the fixing ring 28 is formed in one upper locking claw 26.

  The insertion port member 20 includes a claw ring 27 in contact with an end surface of the cylindrical portion 22 opposite to the insertion port portion 21, and a claw ring 27 and a fixing ring 28 connected to the outer peripheral side of the cylindrical portion 22. The tube body 2 is fixed to the end of the tube body 2 by pressing against the outer peripheral surface of the tube body 2. The claw ring 27 and the fixing ring 28 are basically the same in configuration as the claw ring 17 and the fixing ring 18 that fix the receiving member 10 to the pipe body 1 and have a ring shape as shown in FIG. While having the opening part 28a which receives the four latching claws 26 of the member 20, the latching claw 28b which the latching claw 26 engages is formed in the inner peripheral direction. A fixing bolt (not shown) is screwed into four small-diameter screw holes 28c formed on the outer peripheral portion of the fixing ring 28, and a positioning screw 28e (see FIG. 1) is screwed into one large-diameter screw hole 28d. Therefore, it is configured to be positioned and fixed to the tip of the cylindrical portion 22 of the insertion port member 20. The positioning bolt 28e screwed into the large-diameter screw hole 28d is configured to engage with a positioning recess 26b formed in one of the locking claws 26 of the insertion port member 20. A concave groove 21 a is formed on the outer peripheral surface of the insertion opening 21, and an O-ring 29 is mounted as a water stop member in the concave groove. The O-ring 29 is configured to elastically contact the inner peripheral surface of the receiving port portion 11 of the receiving port member 10.

  The flange portion 15 formed at the open end portion of the receiving member 10 and the flange portion 25 formed at the base portion of the insertion portion 21 of the insertion member 20 are connected and fixed by a stopper 30 constituting a bayonet connection portion. Is done. As described above, when the receiving port member 10 and the insertion port member 20 are connected, when the insertion port portion 21 is inserted into the receiving port portion 11, the flange portion 15 of the receiving port member 10 and the flange portion 25 of the insertion port member 20 are paired. Touch. As shown in FIG. 4, the fastener 30 is formed in a ring shape that covers the outer circumferences of the flange portions 15, 25, and a central groove portion 31 is formed in which both flange portions are sandwiched between the intermediate portions in the axial direction. Four engaging claws 32 that engage with the flange portion 25 of the insertion port member 20 are formed on one of these. That is, the inner diameters of the four engaging claws 32 are set to be smaller than the outer diameter of the flange portion 25 and are the inner diameters through which the flange portion 25 cannot pass. With this configuration, the stopper 30 is supported so as to be rotatable about the axial direction of the insertion port member 20 or the axial direction of the tube main bodies 1 and 2.

  In addition, four locking claws 33 that engage with the flange portion 15 of the receiving member 10 are formed on the other side of the central groove portion 31 so that the stopper 30 can be rotated about the axial direction continuously with the locking claws. The four outer peripheral projections 30a are formed. The inner diameter of the locking claw 33 is set to be smaller than the outer diameter of the four engaging claw portions 15 a formed on the flange portion 15 of the receiving member 10, so that the flange portion 15 cannot pass therethrough. Further, four locking claws 33 are formed at equal intervals of 90 degrees, and a middle portion thereof is a passage portion 33a having a large inner diameter, which is an inner diameter through which the engagement claw portion 15a of the flange portion 15 can pass. .

  As described above, when the engaging claw portion 15a of the flange portion 15 is inserted into the central groove portion 31 in alignment with the passage portion 33a and the stopper 30 is rotated forward by a predetermined angle, the flange portion 15 is formed by bayonet coupling. The engaging claw portion 15a and the locking claw 33 of the metal fitting 30 are engaged and connected, and can be released when reversed. Further, the outer surface of the engaging claw portion 15a is a tapered surface, and when the metal fitting 30 is rotated, the locking claw 33 comes into contact with the tapered surface and the two flange portions can be brought into close contact with each other. . The fastener 30 can be passed from the small diameter cylindrical portion 22 side of the insertion port member 20 and can be engaged with the flange portion 25.

  An inner core 40 is fitted into the end portions of the tube main bodies 1 and 2 as a reinforcing cylindrical member in a press-fit state. As shown in FIG. 7, the inner core 40 is formed of a stainless steel pipe having a thickness of about 1 mm, and is a tapered portion 41 that is squeezed so that the insertion tip side is tapered, and the rear end side is gradually widened. A diameter portion 42 is formed. The outer diameter of the central portion 43 of the inner core 40 is smaller than the inner diameters of the tube main bodies 1 and 2 and is formed so as to fit loosely in the tube main body. The outer diameter on the enlarged diameter portion 44 side of the rear end is the inner diameter of the tube main body. The contact portions 44 projecting outward are formed at three locations on the outer periphery of the rear end. The outer diameter of the contact portion 44 is slightly larger than the inner diameters of the tube main bodies 1 and 2 so that when the inner core 40 is inserted into the tube main bodies 1 and 2, the contact portion 44 is fixed elastically to the inner wall of the resin tube. It is configured.

  The inner core 40 is inserted into the open ends of the tube main bodies 1 and 2, and when the contact portion 44 contacts the inner surface of the tube main body, the inner core 40 is held so as to protrude from the tube main body by about 10 to 20 mm. The rear end portion of the inner core 40 protruding from the tube main body 1 is configured to abut on the circumferential step portion 13 a formed on the inner peripheral protrusion 13 of the receiving member 10, and the inner core protruding from the tube main body 2. The rear end portion of the core 40 is configured to abut on a circumferential step portion 23 a formed on the inner peripheral protrusion 23 of the insertion port member 20.

  In the connection structure of the resin pipe with a joint according to the present embodiment, the stopper 30 is provided with means for preventing the rotation of the stopper 30 in order to maintain the state where the pipe body 1 and the pipe body 2 are connected by the stopper 30. As shown in FIG. 1 (c), the rotation preventing means engages a stopper 35 with an engagement concave portion 15c formed in the flange portion 15 of the receiving member 10, and passes the binding band 36 to the stopper to pass the stopper 30. By tying the outer ring part with a binding band, the stopper 30 is prevented from rotating and the connected state is maintained. The rotation preventing means may be a method of preventing rotation by engaging the stopper 35 through the binding band 36 with the engaging recess 15c and binding the outer peripheral ring portion of the stopper 30 with the binding band.

  As shown in FIG. 8, the stopper 35 has a lock piece 35 a that fits into an engagement recess 15 c formed in the flange portion 15 of the receiving member 10, and a through hole 35 b into which the band portion of the binding band 36 can be inserted. doing. The binding band 36 is, for example, for binding an electric cord or the like, and is formed of nylon or the like. A lock claw 36c is provided in the insertion hole 36b of the head portion 36a, and a band portion 36d formed with a long and serrated notch is passed through the insertion hole 36b, and the lock claw 36c is inserted into the band portion. Is locked and fixed. As shown in FIG. 1 (c), the stopper 35 is fitted into the engaging recess 15c of the receiving member 10, the band portion of the binding band 36 is passed through the through hole 35b, and the band portion is rotated below the lock piece 35a. Further, the stopper 30 is prevented from rotating by rotating further upward on the outer peripheral ring portion of the stopper and passing the band portion 36d through the through hole 35b.

  The connection operation of the resin pipe with joint of the present embodiment configured as described above will be described below. When fixing the receptacle member 10 as a joint to one end portion (right end in FIG. 1) of the tube body 1, first, the inner core 40 is inserted from the opening at the right end of the tube body 1. The inner core 40 has a tapered portion 41 at the tip (left end in FIG. 1) and can be easily inserted. When the inner core 40 is inserted into the tube main body 1, the enlarged diameter contact portion 44 hits the inner wall of the tube main body 1 and is held on the inner wall of the tube main body 1 by the three contact portions 44. At this time, the rear end portion (the right end in FIG. 1) of the inner core 40 is in a state of protruding from the tube body 1 by about 10 to 20 mm. By inserting the inner core 40 into the open end of the tube main body 1, the end of the resin tube main body 1 can be reinforced.

  Thereafter, the fixing ring 18 is fitted around the outer periphery of the tube body 1 from the open end, and the claw ring 17 is fitted from the open end, so that the claw ring 17 is positioned inside the fixing ring 18. In this state, the tapered surface on the outer periphery of the claw ring 17 is in contact with the tapered surface 18 f on the inner periphery of the fixed ring 18. Next, an O-ring 14 is mounted in the concave groove 12b on the inner peripheral surface of the cylindrical portion 12 to fix the receiving member 10 to the right end portion of the tube main body 1, and the tube main body with the inner core 40 inside the inserted portion 12a. 1 is inserted, and the protrusion at the right end of the inner core 40 is engaged with the circumferential step 13a of the inner protrusion 13. In this way, the pipe body 1 having the inner core 40 attached to the inner periphery is inserted into the insertion portion 12a of the receiving member 10, and the tip end portion of the inner core is engaged with the circumferential step portion 13a of the inner peripheral protrusion 13. Thus, the tube main body 1 and the receiving member 10 can be positioned with their axes aligned, and it can be confirmed that the tube main body 1 has been inserted all the way into the receiving member 10. Further, the inner core 40 is inserted and fixed to the ends of the tube main bodies 1 and 2, so that when the receiving member 10 and the inserting member 20 are fixed using the claw rings 17 and 27 and the fixing rings 18 and 28, It is possible to prevent the rings 17 and 27 from biting into the soft resin pipe main bodies 1 and 2 to deform the end of the pipe main body.

  After positioning the receiving member 10 on the tube body 1, the fitting of the locking claw 16 and the opening 18 a of the fixing ring 18 is matched, and when the fixing ring 18 is drawn toward the receiving member 10, the left end of the receiving member 10 The opposing end surface of the claw ring 17 is pressed against the end surface, and the claw ring 17 presses the outer peripheral surface of the tube body 1 in the inner peripheral direction by the tapered surface of the fixing ring 18. Thereafter, the fixing bolt is screwed into the four screw holes 18c of the fixing ring 18 in a state where the outer peripheral surface is pressed, and the tip of the fixing bolt is brought out to the cylindrical portion 12 side of the locking claw 16, whereby the reaction force due to the pressing is obtained. Take it. At this time, the receiving port member 10 and the fixing ring 18 are not in contact with each other. Then, the receiving member 10 is rotated with respect to the fixing ring 18 so that the locking claws 16 and the locking claws 18 b are overlapped. When there is a jig that can receive the reaction force due to the pressing and can rotate together with the receiving member 10, there may be no fixing bolt to be screwed into the screw hole 18c. When the positioning bolt 18e is screwed together by aligning the positioning recess 16b of the receiving member 10 and the screw hole 18d of the fixing ring 18, the fixing ring 18 is fixed in the rotational direction (see FIG. 6c). Thus, the fixing ring 18 and the claw ring 17 are fixed to the tube body 1. Thereby, the receptacle member 10 is fixed to one end of the pipe body 1 as a joint. The resin tube main body 1 and the metal receiving member 10 are fixed because the metal inner core 40 directly contacts the circumferential step 13a of the inner peripheral protrusion 13 of the metal receiving member 10. The state is stable. Moreover, since the end surface of the pipe body 1 is included in the inserted portion 12a, the end of the pipe body 1 can be protected.

  Next, the insertion port member 20 is fixed to one end portion (left end in FIG. 1) of the other pipe body 2 as a joint. First, the inner core 40 is inserted from the opening at the left end of the tube body 2. Also in this case, as in the case of the receiving member 10, the inner core 40 has a tip 41 (the right end in FIG. 1), and can be easily inserted. When the inner core 40 is inserted into the tube main body 2, the enlarged diameter contact portion 44 hits the inner wall of the tube main body 2 and is held on the inner wall of the tube main body 2 by the three contact portions 44. At this time, the rear end portion (the left end in FIG. 1) of the inner core 40 is in a state of protruding from the tube body 2 by about 10 to 20 mm. And also in the case of the pipe main body 2 similarly to the case of the pipe main body 1, the deformation | transformation by the pressure of the fluid to resin-made pipe end parts can be prevented.

  Thereafter, as in the case of the tube body 1, the fixing ring 28 is fitted on the outer periphery of the tube body 2 from the open end, and the claw ring 27 is fitted from the open end, and the claw ring 27 is placed inside the fixed ring 28. Position. In this state, the tapered surface on the outer periphery of the claw ring 27 is in contact with the tapered surface 28 f on the inner periphery of the fixing ring 28. Next, an O-ring 24 is mounted in the concave groove 22b on the inner peripheral surface of the cylindrical portion 22 so as to fix the insertion port member 20 to the left end portion of the tube body 2, and is fixed from the side opposite to the insertion port portion 21 of the cylindrical portion 22. The metal fitting 30 is externally fitted and moved to the left, and the metal fitting 30 is pressed against the flange portion 25. The fastener 30 is blocked from passing through the flange portion 25 by the four engaging claws 32.

  Then, in a state where the stopper 30 is engaged with the flange portion 25 of the insertion port member 20, the pipe body 2 with the inner core 40 is inserted into the insertion portion 22 a inside the cylindrical portion 22, and the inner peripheral protrusion 23. The protrusion at the left end of the inner core 40 is engaged with the circumferential step portion 23a. In this way, the tube body 2 having the inner core 40 attached to the inner periphery is inserted and inserted into the inserted portion 22a of the mouth member 20, and the tip of the inner core is engaged with the circumferential step portion 23a of the inner peripheral protrusion 23. Thus, the tube main body 2 and the insertion port member 20 can be positioned with their axes aligned, and it can be confirmed that the tube main body 2 has been inserted to the back of the insertion port member 20.

  After the insertion port member 20 is positioned on the tube body 2, the engagement of the locking claw 26 and the opening 28 a of the fixing ring 28 is matched, and the fixing ring 28 is pulled toward the insertion port member 20. The opposite end surface of the claw ring 27 is pressed against the right end surface of the tube, and the claw ring 27 presses the outer peripheral surface of the pipe body 2 in the inner peripheral direction by the tapered surface of the fixing ring 28. Thereafter, the fixing bolt is screwed into the four screw holes 28c of the fixing ring 28 in a state where the outer peripheral surface is pressed, and the tip of the fixing bolt is brought out to the cylindrical portion 22 side of the locking claw 26, whereby the reaction force due to the pressing is obtained. Take it. At this time, the insertion port member 20 and the fixing ring 28 are not in contact with each other. Then, the insertion member 20 is rotated with respect to the fixing ring 28 to overlap the locking claw 26 and the locking claw 28b. When there is a jig that can receive the reaction force due to the pressing and can rotate together with the insertion member 20, there may be no fixing bolt to be screwed into the screw hole 28c. When the positioning bolt 28e is screwed together by aligning the positioning recess 26b of the insertion port member 20 and the screw hole 28d of the fixing ring 28, the fixing ring 28 is fixed in the rotational direction. Thus, the fixing ring 28 and the claw ring 27 are fixed to the pipe body 2. Thereby, the insertion port member 20 is fixed to one end portion of the pipe body 2 as a joint. The resin tube main body 2 and the metal insertion member 20 are fixed because the metal inner core 40 directly contacts the circumferential step portion 23a of the inner peripheral projection 23 of the metal insertion member 20. The fixed state is stable. Moreover, since the end surface of the tube main body 2 is included in the inserted portion 22a, the end portion of the tube main body 2 can be protected. In the present embodiment, the pipe main bodies 1 and 2 are made of a synthetic resin such as polyethylene, and thus are light in weight, and are fixed to the pipe main body 1 of the receptacle member 10 that is a joint and to the pipe main body 2 of the insertion port member 20. Can be fixed easily.

  The operation of connecting the pipe main body 1 with a joint to which the receiving port member 10 is attached in this manner and the pipe main body 2 with a joint to which the insertion opening member 20 is attached will be described below. An O-ring 29 is externally fitted in a concave groove 21 a formed in the insertion port portion 21 of the insertion port member 20, and the insertion port portion 21 formed in a convex shape is received in the reception port portion 11 formed in a concave shape in the insertion member 10. Insert into. When the insertion port portion 21 of the insertion port member 20 is pushed all the way into the reception port portion 11 of the reception port member 10, the flange portion 15 of the reception port member 10 and the flange portion 25 of the insertion port member 20 come into contact with each other. The O-ring 29 mounted in the groove 21a is in elastic contact with the inner peripheral surface of the receiving port 11 to prevent water leakage at the O-ring portion. Since the insertion port portion 21 of the insertion port member 20 is fitted and connected to the reception port portion 11 of the reception port member 10, and the inner peripheral surface of the reception port portion 11 and the outer peripheral surface of the insertion port portion 21 face each other, a surface such as a flange The water stop performance is better than the water stop method by combination.

  After the receiving portion 21 of the insertion member 20 fixed to one end of the tube body 2 is inserted into the receiving portion 11 of the receiving member 10 fixed to one end of the tube main body 1, the stopper 30 is inserted and the cylinder of the opening member 20 is inserted. It is rotated by the portion 22, the locking claw 33 of the stopper 30 and the notch 15 b of the flange portion 15 are aligned, and the stopper 30 is moved in the direction of the receiving member (left side). Both flange parts 15 and 25 are located inside. When the stopper 30 is rotated in the counterclockwise direction in FIG. 1B about the axis, the engaging claw 33 moves along the tapered surface 15d of the engaging claw portion 15a, and the engaging claw 33 is moved. Engages with the engaging claw portion 15a, and pulls the flange portion 15 toward the flange portion 25 so as to be in close contact therewith. Thereby, the internal passage 11a of the receptacle member 10 and the internal passage 21a of the insertion member 20 communicate with each other. When the stopper 30 is reversed, the engagement between the locking claw 33 and the engaging claw portion 15a can be released and the connection can be released.

  After the fastener 30 is rotated counterclockwise to bring the flange 15 into close contact with the flange 25, the fastener 30 is prevented from rotating. When the fastener 30 is rotated counterclockwise, the stopper 35 shown in FIG. 8 is inserted into the engagement recess 15c of the flange portion 15, and the fastener 30 is tied and fixed with, for example, a nylon binding band 36. As a result, the stopper 30 is prevented from rotating in the reverse direction and is locked. The resin pipe main body 1 and the pipe main body 2 are connected by inserting the insertion port portion 21 into the reception port portion 11 by the metal receiving port member 10, the insertion port member 20, and the stopper 30, so that the connection portion Is fixed so that it does not move, and its strength is increased, so that the occurrence of water leakage and the like can be suppressed. Moreover, even if an external force is applied to the connecting portion due to an earthquake or the like, deformation is prevented, and the flexibility of the pipe main body can be fully utilized to improve the earthquake resistance of the temporary pipe line. Moreover, since the heavy object is only the connecting part of the pipe line, the construction work becomes easy.

  When the pipe body 1 with a joint to which the receptacle member 10 is attached and the pipe body 2 with a joint to which the insertion member 20 is attached are connected in this way, the inner core 40 fixed to the inner periphery of the pipe body 1 is the receptacle. The inner core 40 that is in contact with the circumferential step portion 13a of the member 10 and fixed to the inner periphery of the insertion port member 20 is in contact with the circumferential step portion 23a of the insertion port member 20, and the end surfaces of the pipe bodies 1 and 2 are inserted. Since it is enclosed in the parts 12a and 22a, the fixed state is stable. Therefore, it is possible to prevent deformation of the pipe end portion and to maintain water stop even against an external force such as bending of the pipe generated during the pipe joining operation.

  According to the jointed resin pipe and the connection structure shown in the present embodiment, it is easy to connect the pipe main bodies 1 and 2 that are pipes, and the temporary pipe line that is piped has a bayonet connection structure. It is easy to remove the receiving member 10 and the insertion member 20. Also, when removing the receptacle member 10 and the insertion member 20 which are joints from the pipe main bodies 1 and 2 with joints, the engagement between the fixing rings 18 and 28 and the receptacle member 10 and the insertion member 20 is loosened, and the claw ring is removed. Maintenance is easy because the pipe bodies 1 and 2 can be easily pulled out simply by loosening the pipe bodies 17 and 27 from the pipe bodies 1 and 2. Moreover, since the pipe main bodies 1 and 2 can be transported, piped, disassembled, and stored with the receiving member 10 and the insertion opening member 20 fixed (mounted), they have a structure that can be used repeatedly.

  Specifically, in FIG. 1B, by rotating the stopper 30 clockwise, the engagement claw portion 15a and the engagement claw 33 are disengaged, and the receiving member 10 and the insertion member 20 And can be separated by pulling out the insertion port 21 of the insertion member 20 from the reception port 11 of the reception member 10. Then, in the tube body 1 with the separated receiving member 10, the engaging ring 18 b of the fixing ring 18 and the engaging claw 16 of the receiving member 10 are disengaged to release the fixing ring 18 from the receiving member 10. The receptacle member 10 can be easily removed from the tube body 1 by releasing the claw ring 17 from biting into the tube body 1. And the member of all the connection structures can be removed from the resin pipe with a joint by pulling out the inner core 40 from the removed pipe main body 1.

  Similarly, when the insertion port member 20 is removed from the tube body 2, the engagement between the locking claw 28 b of the fixing ring 28 and the locking claw 26 of the insertion port member 20 is disengaged from the insertion member 20. The insertion port member 20 can be easily removed from the pipe body 2 by releasing the bite into the pipe body 2 of the claw ring 27. Thereafter, the stopper 30 can be pulled out from the end of the insertion port member 20 on the tube body 2 side. And the member of all the connection structures can be removed from the resin pipe with a joint by pulling out the inner core 40 from the removed pipe | tube main body 2. FIG.

  The resin pipe with the joint for temporary piping of this embodiment, the connection structure of the resin pipe for temporary piping, and the temporary piping pipe line using these are exposed in the ground without being embedded in the ground It may be installed at. When the resin tube is exposed, the tube body 1 or 2 may need to be subjected to weathering treatment because the strength may decrease due to the influence of ultraviolet rays or the like. In this case, for example, it is preferable to coat the tube body with a resin for preventing ultraviolet rays. That is, by winding a resin tube (not shown) made of, for example, a low density polyethylene resin around the outer circumferences of the tube main bodies 1 and 2, the influence of ultraviolet rays can be reduced and the tube main bodies 1 and 2 can be protected.

  An embodiment of a temporary pipe line that is another embodiment of the present invention will be described in detail with reference to FIG. FIG. 9 is a system configuration diagram of an embodiment of a temporary piping pipeline according to the present invention. This embodiment is characterized by using the above-described resin pipe with a joint for temporary piping and a connecting structure of the resin pipe, and further using a connecting tool such as an elbow or cheese. Other substantially equivalent configurations are denoted by the same reference numerals, and detailed description thereof is omitted.

  In FIG. 9, the temporary piping pipe of this embodiment uses a pipe member 1, 2 ... made of synthetic resin such as polyethylene as a metal joint and uses a receiving member 10, an insertion member 20 ..., and further if necessary. In addition, it is constructed temporarily using elbows, cheeses, branch cheeses or the like as other connecting tools. Specifically, the existing water main pipe, which is an old pipe to be renewed, is branched by a continuous water branch split T-shaped pipe, and the flanged short pipe No. 1 is connected as a resin pipe with a joint of this embodiment, and a 45 ° bend Similarly, a short pipe with a flange, a 90 ° bend, a short pipe with a flange, a cheese with a water faucet, cheese, and a short pipe with a flange No. 2 are connected to another existing water main pipe.

  In the various connecting members used in this example, the main body part is formed of a synthetic resin pipe, and the joint part is made of metal. For example, in a 45-degree bend, the intermediate portion is a resin tube bent at 45 degrees, and the metal receiving member 10 and the insertion member 20 are fixed to both ends. Similarly, the cheese and the cheese with a water faucet are made of resin and light in weight, and have a metal receiving member 10 and an insertion member 20 fixed at both ends.

  According to the temporary pipe line of the present embodiment, the pipe bodies 1 and 2 made of synthetic resin are connected as metal joints using the receiving port member 10 and the insertion port member 20, and the existing pipe such as an old water pipe Since the connection is configured in advance to renew the road, it is possible to prevent water outages and eliminate the inconvenience of neighboring residents. In addition, since the light pipes are connected by metal joints, the temporary piping pipes can be easily connected, and the pipes can be operated even if earthquakes occur and a large external force acts on them. Since the strength of the connecting portion is high, water leakage can be prevented.

  Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various designs can be made without departing from the spirit of the present invention described in the claims. It can be changed. For example, as a configuration for fixing a metal joint to a tube body made of synthetic resin, a configuration in which a claw ring is pressed and fixed with a stopper is shown, but the configuration is not limited to this, and a receiving member and an insertion port member are not limited thereto. The structure fixed using fixing means, such as a volt | bolt, may be sufficient. Moreover, although the example of the O-ring was shown as a water stop member, it does not need to have a circular cross-sectional shape, and it is needless to say that a water stop member having any cross-sectional shape may be used.

  As a rotation preventing means for maintaining the connection state of the jointed resin pipe, a stopper 35 is fitted to the flange portion 15 of the receiving member 10, and the stopper 35 and the outer peripheral ring portion of the stopper 30 are tied together by a binding band 36. Although an example of preventing rotation has been shown, for example, it may be configured to prevent the relative movement between the flange portion of the insertion port member and the stopper, and to maintain the connected state. You may comprise so that it may lock.

  In the said embodiment, although the example of the pipe body of a straight pipe was shown as a resin pipe with a joint, it is not restricted to this, The said receiving member and insertion member at the edge part of deformed pipes, such as cheese and an elbow Can be fixed and connected to another pipe body or the like to form a temporary pipe line. Moreover, a temporary piping pipeline can also be formed by fixing and connecting the receptacle member and the insertion port member to a joint such as a socket for connecting the pipe main bodies to both ends of the flexible pipe.

  Furthermore, as an example of a bayonet connection part of a metal joint, the engagement claw part has been shown as an example of four claws formed on the circumference. However, the present invention is not limited to this, and it matches the diameter of the pipe body. Of course, it is also possible to adopt a configuration comprising claws formed on two circumferences, or three or other plural claws. Moreover, although the example of the circumferential periphery protrusion was shown as an internal protrusion of a receptacle member or an insertion opening member, several protrusions which protrude from an inner surface, for example, three protrusions formed in the periphery shape You may comprise.

  As an application example of the present invention, this jointed resin pipe and connection structure can be used not only for water supply but also for temporary piping pipes for sewers, and other pipes for transporting various liquids in factories, etc. It can also be applied to roads and other uses.

1, 2: pipe body (polyethylene pipe), 10: receiving member (metal joint), 11: receiving part, 11a: internal passage, 12: cylindrical part, 12a: inserted part, 12b: recessed groove, 13: Inner peripheral projection, 13a: Circumferential step (internal projection), 14: O-ring (water-stop member), 15: Flange, 15a: Engagement claw (bionet connecting portion), 15c: Engagement Recessed portion, 16: locking claw, 17: claw ring, 18: fixing ring, 18b: locking claw, 20: insertion port member (metal joint), 21: insertion port portion, 22: cylindrical portion, 22a: covered Insertion part, 22b: concave groove, 23: inner peripheral protrusion, 23a: circumferential step part (internal protrusion), 24: O-ring (water stop member), 25: flange part, 26: locking claw, 27: claw Ring: 28: Fixed ring, 28b: Locking claw, 29: O-ring (water-stop member), 30: Stopper ( Ionette connecting part), 30a: protrusion, 33: locking claw, 35: stopper (rotation preventing means), 36: binding band, 40: inner core (cylindrical member), 41: tapered portion, 42: expanded diameter part, 43: Center part, 44: Contact part

Claims (14)

Of the metal joint that consists of a synthetic resin tube body, a receiving member and an insertion member, and the pipes can be connected by joining the two members, the receiving member is fixed to one end of the tube body Resin with joint for temporary piping which is transported, piped, disassembled, stored and used repeatedly while the insertion port member is fixed to the other end and the receiving port member and insertion port member are mounted on the pipe body A tube,
The receptacle member includes an insertion portion into which the pipe body is inserted, and a receptacle portion having an inner peripheral surface that communicates with the insertion portion and extends in the axial direction so as to receive the insertion member.
The insertion port member is inserted into the insertion portion into which the tube main body is inserted, and the inner peripheral surface in a state of being inserted into the reception port portion of the resin pipe with a joint for temporary piping connected in communication with the insertion portion. An insertion opening having an opposing outer peripheral surface,
One of the receptacle member or the insertion port member has an engaging claw portion, and the other of the receptacle member or the insertion port member has a stopper that is engaged with the engagement claw portion by normal rotation and released by reverse rotation, It has a structure that constitutes a bayonet coupling part by the cooperation of the engaging claw part and the stopper fitting,
The receiving member includes a locking claw formed on an outer peripheral surface of the end portion on the insertion portion side, a fixing ring that engages the locking claw with normal rotation and releases it with reverse rotation, and the fixing ring releases the tube A resin pipe with a joint for temporary piping , comprising: a claw ring that is pressed against an outer peripheral surface of the main body to fix the receiving member to an end of the pipe main body . The receptacle member is formed at a predetermined interval in the circumferential direction of the fixing ring and has a plurality of screw holes penetrating the fixing ring in the radial direction, and is screwed into the plurality of screw holes, respectively, and the tip thereof is the receptacle member. A plurality of fixing bolts facing the outer peripheral surface of the end portion on the opposite side of the receiving portion, another screw hole penetrating the fixing ring in the radial direction, a positioning bolt screwed into the other screw hole, 2. A positioning recess formed on the locking claw of the receiving member to fix the position of the fixing ring in the rotational direction relative to the receiving member by engaging the positioning bolt. Resin pipe with joint for temporary piping as described in 2. The claw ring is formed by cutting a part of a circumference to enable elastic deformation in the reduced diameter direction of the claw ring, and a plurality of circumferential shapes protruding on the inner circumferential surface. A claw and a tapered surface formed on the outer peripheral surface and gradually increasing in outer diameter toward the end of the tube body,
The fixing ring has the claw ring inside the fixing ring, contacts the taper surface of the claw ring, and pulls the fixing ring against the receiving member, thereby removing the claw ring from the tube body. The resin pipe with a joint for temporary piping according to claim 1, further comprising a tapered surface that presses against the outer peripheral surface of the pipe. Of the metal joint that consists of a synthetic resin tube body, a receiving member and an insertion member, and the pipes can be connected by joining the two members, the receiving member is fixed to one end of the tube body Resin with joint for temporary piping which is transported, piped, disassembled, stored and used repeatedly while the insertion port member is fixed to the other end and the receiving port member and insertion port member are mounted on the pipe body A tube,
The receptacle member includes an insertion portion into which the pipe body is inserted, and a receptacle portion having an inner peripheral surface that communicates with the insertion portion and extends in the axial direction so as to receive the insertion member.
The insertion port member is inserted into the insertion portion into which the tube main body is inserted, and the inner peripheral surface in a state of being inserted into the reception port portion of the resin pipe with a joint for temporary piping connected in communication with the insertion portion. An insertion opening having an opposing outer peripheral surface,
One of the receptacle member or the insertion port member has an engaging claw portion, and the other of the receptacle member or the insertion port member has a stopper that is engaged with the engagement claw portion by normal rotation and released by reverse rotation, It has a structure that constitutes a bayonet coupling part by the cooperation of the engaging claw part and the stopper fitting,
The insertion port member includes a cylindrical cylindrical portion positioned on the outer peripheral side of the tube main body, a locking claw formed on an outer peripheral surface of an end portion of the cylindrical portion opposite to the insertion port portion, and the engagement member. A fixing ring that engages with the pawl in the normal direction and releases it in the reverse direction, and a claw ring that is pressed against the outer peripheral surface of the pipe body by the fixing ring and fixes the insertion member to the end of the pipe body. A resin pipe with a joint for temporary piping. The insertion port member is formed at a predetermined interval in the circumferential direction of the fixing ring and has a plurality of screw holes penetrating the fixing ring in the radial direction, and screwed into the plurality of screw holes, respectively, and the tip is inserted into the insertion ring member. A plurality of fixing bolts facing the outer peripheral surface of the end of the mouth member opposite to the insertion opening, another screw hole that penetrates the fixing ring in the radial direction, and a positioning bolt that is screwed into the other screw hole And a positioning recess that is formed on the locking claw of the insertion port member and that engages the positioning bolt to fix the position of the fixing ring in the rotational direction with respect to the insertion port member. The resin pipe with a joint for temporary piping according to claim 4. The claw ring is formed by cutting a part of a circumference to enable elastic deformation in the reduced diameter direction of the claw ring, and a plurality of circumferential shapes protruding on the inner circumferential surface. A claw and a tapered surface formed on the outer peripheral surface and gradually increasing in outer diameter toward the end of the tube body,
The fixing ring has the claw ring inside the fixing ring, contacts the taper surface of the claw ring, and pulls the fixing ring against the receiving member, thereby removing the claw ring from the tube body. The resin pipe with a joint for temporary piping according to claim 4, further comprising a tapered surface that presses against the outer peripheral surface of the pipe. Of the metal joint that consists of a synthetic resin tube body, a receiving member and an insertion member, and the pipes can be connected by joining the two members, the receiving member is fixed to one end of the tube body Resin with joint for temporary piping which is transported, piped, disassembled, stored and used repeatedly while the insertion port member is fixed to the other end and the receiving port member and insertion port member are mounted on the pipe body A tube,
The receptacle member includes an insertion portion into which the pipe body is inserted, and a receptacle portion having an inner peripheral surface that communicates with the insertion portion and extends in the axial direction so as to receive the insertion member.
The insertion port member is inserted into the insertion portion into which the tube main body is inserted, and the inner peripheral surface in a state of being inserted into the reception port portion of the resin pipe with a joint for temporary piping connected in communication with the insertion portion. An insertion opening having an opposing outer peripheral surface,
The receptacle member has an internal projection that protrudes between the insertion portion and the receptacle portion, and the insertion member has an internal projection that projects between the insertion portion and the insertion portion. The inner protrusion of the receiving port member and the insertion port member is larger in diameter than the smallest inner circumferential part at the innermost part of the inserted part and is formed in a circumferential shape along the inner wall of the inserted part. Part
The resin pipe with a joint for temporary piping includes a cylindrical member located on the inner periphery of the end of the pipe body, and the end of the cylindrical member is the circumferential step of the receptacle member or the insertion member. A resin pipe with a joint for temporary piping, which is in contact with the inner peripheral surface of the portion. Of the metal joint that consists of a synthetic resin tube body, a receiving member and an insertion member, and the pipes can be connected by joining the two members, the receiving member is fixed to one end of the tube body Resin with joint for temporary piping which is transported, piped, disassembled, stored and used repeatedly while the insertion port member is fixed to the other end and the receiving port member and insertion port member are mounted on the pipe body A tube,
The receptacle member includes an insertion portion into which the pipe body is inserted, and a receptacle portion having an inner peripheral surface that communicates with the insertion portion and extends in the axial direction so as to receive the insertion member.
The insertion port member is inserted into the insertion portion into which the tube main body is inserted, and the inner peripheral surface in a state of being inserted into the reception port portion of the resin pipe with a joint for temporary piping connected in communication with the insertion portion. An insertion opening having an opposing outer peripheral surface,
The receptacle member has a water stop member in a groove on the inner peripheral surface of the inserted portion, and the water stop member contacts the outer peripheral surface of the pipe body,
The insertion port member has a water stop member in a groove on the inner peripheral surface of the inserted portion, and the water stop member contacts the outer peripheral surface of the pipe body,
The receiving member includes a fixing ring connected to an outer peripheral surface of an end portion of the receiving member on the insertion portion side, and a claw ring disposed inside the fixing ring, and the claw ring is connected to the receiving port. Abutting on the end surface of the member on the insertion portion side and held inside the fixing ring, the claw ring is pressed against the outer peripheral surface of the pipe body by the fixing ring and fixed to the end of the pipe body. ,
The insertion port member has a fixing ring connected to an outer peripheral surface of an end portion of the insertion port side of the insertion port member, and a claw ring disposed inside the fixing ring, The end portion of the tube body is abutted against the end surface of the insertion port member on the insertion portion side and is held inside the fixing ring, and the claw ring is pressed against the outer peripheral surface of the tube body by the fixing ring. A resin pipe with a joint for temporary piping, characterized by being fixed to. Of the metal joint that consists of a synthetic resin tube body, a receiving member and an insertion member, and the pipes can be connected by joining the two members, the receiving member is fixed to one end of the tube body Resin with joint for temporary piping which is transported, piped, disassembled, stored and used repeatedly while the insertion port member is fixed to the other end and the receiving port member and insertion port member are mounted on the pipe body A tube,
The receptacle member includes an insertion portion into which the pipe body is inserted, and a receptacle portion having an inner peripheral surface that communicates with the insertion portion and extends in the axial direction so as to receive the insertion member.
The insertion port member is inserted into the insertion portion into which the tube main body is inserted, and the inner peripheral surface in a state of being inserted into the reception port portion of the resin pipe with a joint for temporary piping connected in communication with the insertion portion. An insertion opening having an opposing outer peripheral surface,
The receptacle member has a water stop member on the inner peripheral surface of the inserted portion, the water stop member contacts the outer peripheral surface of the pipe body,
The insertion port member has a water stop member on the inner peripheral surface of the inserted portion, and the water stop member contacts the outer peripheral surface of the pipe body,
The receptacle member includes a fixing ring attached to an outer peripheral surface of an end portion of the receptacle member on the insertion portion side, and a claw ring disposed inside the fixing ring, and the claw ring is provided by the fixing ring. It is fixed to the end of the tube body by pressing the ring against the outer peripheral surface of the tube body,
The insertion port member has a fixing ring attached to an outer peripheral surface of an end portion of the insertion port side of the insertion port member, and a claw ring disposed inside the fixing ring, and the fixing ring It is fixed to the end of the tube body by pressing the claw ring against the outer peripheral surface of the tube body,
Each of the fixing rings includes a screw hole penetrating in the radial direction of the fixing ring, and a fixing bolt screwed into the screw hole and having a distal end facing the outer peripheral surface of the receiving port member and the insertion port member. Or the resin pipe with a joint for temporary piping characterized by being fixed to the outer peripheral surface of the said insertion port member. One of the receptacle member or the insertion port member has an engaging claw portion, and the other of the receptacle member or the insertion port member has a stopper that is engaged with the engagement claw portion by normal rotation and released by reverse rotation, The resin pipe with a joint for temporary piping according to any one of claims 7 to 9, having a structure that forms a bayonet connecting portion by cooperation of the engaging claw portion and the stopper metal fitting. The resin pipe with a joint for temporary piping according to any one of claims 1 to 10, wherein the pipe body is provided with a coating having weather resistance on an outer peripheral surface. The resin pipe with a joint for temporary piping according to any one of claims 1 to 11, wherein the pipe body is a deformed pipe. A temporary piping pipe characterized by comprising the resin pipe with a joint for temporary piping according to any one of claims 1 to 12. The metal coupling used for the resin pipe with a joint for temporary piping in any one of Claims 1-12.

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