JP2006083902A - Water flow pipe connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water flow pipe connector which can be attached to a connection part of water flow pipe at a relatively narrow place and enables to accurately confirm whether an installation condition of a clip on the connection part is good or bad. <P>SOLUTION: The water flow pipe connector 10 consists of the clip 11 engaging with flanges 3, 4 and a cover 12 on an outer circumference thereof. The clip 11 is provided with two arm parts 11a, 11b clamping the flanges 3, 4, an arm support part 11c for keeping the arm parts 11a, 11b capable of elastically opening and closing, and guide part 11d, 11e for guiding the flanges 3, 4 to a part between the arm parts 11a, 11b. The cover 12 is provided with arm cover parts 12a, 12b arranged outside of the two arm parts 11a, 11b, a cover support part 12c for keeping the two arm cover parts 12a, 12b capable of opening and closing, opening parts 12d, 12e through which the guide parts 11d, 11e can pass, and a connection means connecting the arm cover parts 12a, 12b. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a water pipe connector used for a connection part of a water pipe that is piped under a floor as a water supply / drainage path in a general house or the like.

  When connecting the water pipes to each other, the flange ends provided in the vicinity of the opening ends are brought into contact with each other after engaging the opening ends of the two water pipes, so that the flanges are not separated from each other. A clip called a quick fastener is attached. In this case, in order to confirm whether or not the clip is correctly attached to the connection portion of the water pipe, a protective cover may be attached so as to cover the outer periphery of the clip attached to the flange (see, for example, Patent Document 1). .)

  This protective cover consists of two parts (halved parts) that can be opened and closed via a hinge, and has a ring shape that covers the entire circumference of the clip. Its inner diameter is correctly attached to the connecting part of the water pipe. The same size as the outer diameter of the clip. When this protective cover is attached to the clip attached to the connection portion of the water pipe, it can be determined whether or not the clip is correctly attached based on whether or not the protective cover can actually be attached. That is, if the protective cover can be attached to the clip, it can be determined that the clip is correctly attached, and if it cannot be attached, it can be determined that the clip is not correctly attached.

  In addition, when this protective cover is attached to a clip attached to the connection part of the water pipe, it can be performed from the same direction as the direction in which the clip is attached to the flange of the water pipe. Compared with a connection tool (for example, refer to Patent Documents 2 to 4), workability is also good.

JP 2002-195486 A JP 2002-138556 A JP 2000-144867 A JP-A-8-28770

  In the case of the protective cover described in Patent Document 1, when this is attached around the clip attached to the connection portion of the water pipe, the two halves constituting the protective cover must be opened widely. The maximum outer diameter part of the two halves will open greatly. In addition, since the flange of the water conduit is guided between the clips, the tip of the clip is provided with a guide that opens in the diameter-expanding direction, so the protective cover during installation passes outside the guide. When doing so, the two halves need to be opened wide.

  For this reason, when this protective cover is used for a portion where a plurality of water pipes are piped close to each other, for example, a water pipe connecting portion in a branching device such as a header, the adjacent water pipes are half of the protective cover. The protective cover may not be used because it prevents the split from opening. Therefore, in order to use such a conventional protective cover, it is necessary to widen the arrangement interval of adjacent water pipes, which is a factor that hinders the compactness of branching devices such as headers.

  The problem to be solved by the present invention can be attached to a connecting portion of a water pipe in a relatively narrow place, and whether or not a clip is attached to the connecting portion of the water pipe can be accurately confirmed. It is to provide a water pipe connector.

The water pipe connector of the present invention is a water pipe connector that is attached to a connecting portion of a water pipe that is connected to the two water pipes having flanges in the vicinity of the opening end with the flanges facing each other.
It is composed of a clip that is detachably engaged with the flange in contact with the opposite surface, and a cover that is detachably attached to the outer periphery of the clip.
The clip has two arm portions arranged so that the flange portions are detachably sandwiched between the distal end portions, and the base end portion of the arm portion to keep the two arm portions open and close elastically. An arm support portion that connects the two, and a guide portion having an enlarged diameter provided at a tip portion of the arm portion for guiding the flange between the arm portions,
The cover includes an arm cover portion disposed on the outside of the arm portion, a cover support portion connecting the base end portions of the arm cover portion to keep the arm cover portions openable and closable, and the guide portion. An opening or a notch formed in the arm cover part for allowing the arm part to penetrate in the opening direction, and a connecting means provided in the arm cover part for connecting the arm cover parts to each other. Features.

  With such a configuration, after attaching the clip to the flange that is in a face-to-face contact with the connecting portion of the water pipe, and attaching the cover along the outer periphery of the clip, when connecting the arm cover part with the connecting means, The guide portion of the clip is in a state of protruding outward from the opening or notch portion of the arm cover portion. For this reason, the maximum opening degree (maximum opening width) of the arm cover part can be reduced compared with the case where the outer periphery of the guide part of the clip is completely covered by the arm cover part, and the clip is located in a relatively narrow place. It can be attached to the connecting part of the water pipe. In addition, after attaching the cover to the clip attached to the connection part of the water pipe, check whether the arm cover parts can be connected to each other by the connecting means at the tip of the arm cover part. It is possible to accurately confirm whether or not the clip is attached to the.

  Here, a structure in which the arm support portion of the clip and the cover support portion of the cover are fixed may be employed. With such a structure, the clip and the cover are integrated, and the clip can be attached to the connecting portion of the water pipe and the cover can be attached at the same time, so that the construction is easy. Also, you can forget to attach the cover, overlook the wrong installation of the clip, and eliminate the trouble that water leaks from the connected part after installation. Further, since the arm support part of the clip and the cover support part of the cover are fixed in advance, the connecting means of the arm cover part is connected to the outer periphery of the guide part of the clip as in the case where the clip and the cover are attached separately. Therefore, the opening degree (opening width) of the arm cover part can be further reduced.

  Moreover, the cross-sectional shape of at least a part of the arm portion of the clip may be a U-shape that can hold the flange in contact with each other in the axial direction of the water pipe. If it is such a shape, since the clamping function with respect to the flange in an opposing contact state will increase in the connection part of a water pipe, and it becomes possible to obtain a firm clamping state, the reliability of a connection part further improves.

  Furthermore, if an opening degree restricting means for restricting the opening degree of the arm cover part is provided, the opening degree (opening width) of the cover is restricted within a certain range and will not be opened more than that. For this reason, when used in a water pipe connecting part such as a narrow header in a work space, the arm cover part opens wider than necessary, and abuts on a surrounding member (for example, a nearby water pipe connecting part), The installation work is not hindered.

  According to the present invention, the water pipe connector can be attached even in a relatively narrow region, and whether or not the clip is attached to the connection portion of the water pipe can be accurately confirmed.

  Hereinafter, a water pipe connector according to an embodiment of the present invention will be described with reference to the drawings. 1 is a perspective view showing a water pipe connecting tool and a water pipe connecting portion according to a first embodiment of the present invention, FIG. 2 is a perspective view of the water pipe connecting tool shown in FIG. 1, and FIG. It is sectional drawing in A line.

  As shown in FIG. 1 to FIG. 3, the water conduit connector 10 of the present embodiment has two water conduits 1 and 2 having flanges 3 and 4 in the vicinity of the opening end, and the flanges 3 and 4 are in contact with each other. By attaching to the connected connection portion, the connection portion is fixed so as not to be separated. The water pipe connector 10 includes a metal clip 11 that is detachably engaged with the flanges 3 and 4 that are in contact with each other, and a synthetic resin cover 12 that is attached to the outer periphery of the clip 11.

  The clip 11 keeps the two arm portions 11a and 11b arranged to be separated from each other in order to detachably hold the flanges 3 and 4 and the two arm portions 11a and 11b so that they can be opened and closed elastically. Therefore, the arm support portion 11c connecting the base end portions of the arm portions 11a and 11b, and the diameter expansion provided at the distal end portions of the arm portions 11a and 11b in order to guide the flanges 3 and 4 between the arm portions 11a and 11b. Shaped guide portions 11d and 11e are provided. In this embodiment, the clip 11 is integrally formed of a metal material having elasticity.

  The cover 12 includes arm cover portions 12a and 12b arranged on the outer sides of the two arm portions 11a and 11b, and an arm cover portion 12a for keeping the two arm cover portions 12a and 12b open and close together with the arm portions 11a and 11b. , 12b connected to the base end portion and the guide portions 11d and 11e of the clip 11 in the opening direction of the arm cover portions 12a and 12b so that the arm portions 11a and 11b can be opened. , 12e and connecting means provided at the tip of the arm cover portions 12a, 12b for connecting the arm cover portions 12a, 12b to each other. The base end portions of the arm cover portions 12a and 12b are connected to the cover support portion 12c via the hinge portion 12n.

  In the present embodiment, two fitting holes 12f provided at the distal end portion of the arm cover portion 12a and two fitting projections 12g provided at the distal end portion of the arm cover portion 12b are provided as connecting means. . By fitting the two fitting protrusions 12g of the arm cover portion 12b into the two fitting holes 12f of the arm cover portion 12a, the two arm cover portions 12a and 12b can be connected to each other. Further, guide recesses 12 s and 12 t for guiding the flanges 3 and 4 between the guide portions 11 d and 11 e of the clip 11 are formed at the distal ends of the arm cover portions 12 a and 12 b.

  Further, near the base end portions of the two arm cover portions 12a and 12b, crossbars 12h and 12i are provided which slidably intersect with each other in the inner peripheral region from the cover support portion 12c. A stopper 12j is protruded, and a hook 12k is provided at the tip of the cross bar 12i. When the arm cover portions 12a and 12b are opened and closed, the cross bars 12h and 12i slide with each other, and the stopper 12j and the hook 12k approach and separate from each other, but the arm cover portions 12a and 12b are biased in the opening direction. When the stopper 12j and the hook 12k are engaged with each other, the opening degree of the arm cover portions 12a and 12b is regulated to be constant.

  On the other hand, a through hole 11 f is formed in the arm support portion 11 c of the clip 11, and an engagement protrusion 12 m that can be fitted into the through hole 11 f is provided on the inner surface of the cover support portion 12 c of the cover 12. The cover 12 can be fixed to the clip 11 by fitting the engagement protrusion 12 m of the cover 12 into the through hole 11 f of the clip 11.

  Here, with reference to FIG. 1 to FIG. 3 and FIG. 4 to FIG. 9 described above, a procedure for attaching the water pipe connecting tool 10 to the connection portion of the water pipes 1 and 2 will be described. 4 is a perspective view showing a state in which the water pipe connector shown in FIG. 1 is attached to the connecting portion of the water pipe. FIG. 5 is a diagram showing that the water pipe connector shown in FIG. 1 is attached to the connecting portion of the water pipe. FIG. 6 is a perspective sectional view taken along line BB in FIG. 4, FIG. 7 is a perspective view showing a state where the water pipe connector shown in FIG. 1 is attached to the connecting portion of the water pipe, and FIG. The perspective view which shows the state with which the water pipe connecting tool shown in FIG. 1 was mounted | worn in the connection part of the water pipe, FIG. 9 is a perspective sectional view in CC line of FIG.

  As shown in FIG. 1, the distal end side of the arm cover portions 12a and 12b of the water conduit connector 10 in which the fitting hole 12f is separated from the fitting protrusion 12g and the arm cover portions 12a and 12b are opened, It is directed to the flanges 3 and 4 that are in the opposed contact state at the connecting portions of the water pipes 1 and 2. At this time, since the opening degree of the arm cover portions 12a and 12b is regulated to be constant by the engagement of the stopper 12j of the cross bar 12h and the hook 12k of the cross bar 12i, the water pipe connector 10 has the flanges 3 and 4 On the other hand, it will face in the state shown in FIG.

  Thereafter, the water pipe connector 10 is brought close to the flanges 3 and 4, and the guide recesses 12 s and 12 t at the distal ends of the arm cover portions 12 a and 12 b are brought into contact with the outer periphery of the flanges 3 and 4. If the whole is pressed toward the flanges 3 and 4, the outer circumferences of the flanges 3 and 4 abut against the guide recesses 12 s and 12 t and are sandwiched between the guide portions 11 d and 11 e of the clip 11, and elastically by the pressing force. It is guided along the enlarged guide portions 11d and 11e and fits between the arm portions 11a and 11b. As a result, the water conduit connector 10 is locked to the flanges 3 and 4 in the state shown in FIGS.

  When the water pipe connector 10 is further advanced along the flanges 3 and 4, the flanges 3 and 4 are fitted between the arms 11 a and 11 b of the clip 11, and the clip 11 and the cover 12 are connected to the flanges 3 and 4. Mounted on the outer periphery. Thereafter, when the arm cover portions 12a and 12b are connected to each other by fitting the fitting protrusion 12g at the distal end portion of the arm cover portion 12b into the fitting hole 12f at the distal end portion of the arm cover portion 12a, FIG. It will be in the state shown in FIG. 9, and installation of the water pipe connector 10 will be completed.

  In this case, as a connecting means for the arm cover portions 12a and 12b, the fitting hole 12f at the distal end portion of the arm cover portion 12a and the fitting projection 12g at the distal end portion of the arm cover portion 12b are fitted to each other to form an arm. By confirming whether or not the cover portions 12a and 12b can be connected to each other by visual observation or sound, it is possible to accurately confirm the mounting state of the clip 11 to the connection portion of the water pipes 1 and 2.

  Specifically, the water pipe connector 10 is visually observed from the direction opposite to the direction in which the water pipe connector 10 is attached or the water pipe connector 10 is attached along the outer periphery of the flanges 3 and 4 with the water pipe connector 10 attached. It can be rotated 180 degrees and visually confirmed from the mounting direction, or can be confirmed by sound generated when the fitting protrusion 12g is fitted into the fitting hole 12f.

  In this way, by attaching the water pipe connector 10 to the flanges 3 and 4 that are in opposed contact with each other at the connection part of the water pipes 1 and 2, the connection part is not separated by attaching the water pipe connector 10 according to the procedure described above. Can be fixed. Further, the arm cover portions 12a and 12b constituting the water pipe connector 10 have openings 12d and 12e through which the guide portions 11d and 11e at the distal ends of the arms 11a and 11b of the clip 11 can penetrate in the diameter increasing direction. Has been established. For this reason, it is not necessary to open the arm cover parts 12a and 12b of the cover 12 greatly even if the guide parts 11d and 11e of the clip 11 expand in diameter during the mounting operation. Moreover, since the opening degree of the arm cover portions 12a and 12b is regulated by the engagement between the hook 12k and the stopper 12j, the arm cover portions 12a and 12b do not open more than necessary during the attaching operation.

  Therefore, as shown in FIGS. 10 and 11, when the water pipe connecting tool 10 is attached to a portion where the plurality of water pipes 1 a are connected to the header 13 in which the plurality of water pipes 2 a are connected in parallel, the arm cover is attached. The parts 12a and 12b are opened more than necessary, so that they do not come into contact with the water pipe connector 10 and the water pipes 1a and 2a attached to the adjacent connection parts, and the water pipe connector 10 can be easily attached. it can. That is, the water pipe connecting tool 10 can be attached to the connection part of the water pipes 1a and 2a located in a relatively narrow place, and the workability is also good.

  In the case of the water conduit connector 10, the arm support portion 11c of the clip 11 and the cover support portion 12c of the cover 12 are fixed by engagement of the through hole 11f and the engagement protrusion 12m. Therefore, as a result of the structure in which the clip 11 and the cover 12 are integrated, the clip 12 can be attached to the connecting portion of the water pipes 1 and 2 and the cover 12 can be attached at the same time. Moreover, since it is possible to eliminate forgetting to attach the cover 12, it is possible to eliminate the trouble of overlooking the erroneous installation of the clip 11 and leaking water from the connected portion after the installation. Further, since the arm support portion 11c of the clip 11 and the cover support portion 12c of the cover 12 are fixed in advance, the arm cover portions 12a and 12b are connected as in the case where the clip 11 and the cover 12 are attached separately. Since the means (the fitting hole 12f and the fitting protrusion 12g) does not need to pass the outer periphery of the guide portions 11d and 11e of the clip 11, the opening degree of the arm cover portions 12a and 12b can be further reduced.

  Further, in the arm portions 11 a and 11 b of the clip 11, the cross-sectional shape of the portion in contact with the flanges 3 and 4 can be held in the axial direction (longitudinal direction) of the water pipes 1 and 2 through the flanges 3 and 4 that are opposed to each other. It is U-shaped. For this reason, the flanges 3 and 4 which are in an opposing contact state in the connection part of the water flow pipes 1 and 2 can be clamped firmly, and the reliability of the said connection part improves.

  Next, with reference to FIGS. 12-20, the water pipe connector which is 2nd Embodiment of this invention is demonstrated. 12 is a perspective view showing a water pipe connector according to a second embodiment of the present invention, FIG. 13 is a perspective view of the water pipe connector shown in FIG. 12, and FIG. 14 is a plan view of the water pipe connector shown in FIG. It is. 15 is a perspective view showing a state in which the water pipe connector shown in FIG. 12 is attached to the connection portion of the water pipe, FIG. 16 is a perspective sectional view taken along line EE of FIG. 15, and FIG. FIG. 18 is a perspective view showing a state where the water pipe connecting tool shown in FIG. 12 is attached to the connecting portion of the water pipe, and FIG. 19 is a perspective cross sectional view taken along the line FF of FIG. 20 is a cross-sectional view taken along line FF in FIG.

  The water pipe connector 20 of the present embodiment, like the water pipe connector 10 shown in FIGS. 1 to 3, has two water pipes 1, 2 having flanges 3, 4 in the vicinity of the opening end. It is for fixing so that a connection part may not leave | separate by mounting | wearing the connection part of the water flow pipes 1 and 2 which connected 4 mutually opposed and connected. As shown in FIGS. 12 to 16, the water pipe connector 20 includes a metal clip 21 that is detachably engaged with a flange that is in contact with each other, and a synthetic resin cover 22 that is attached to the outer periphery of the clip 21. It consists of

  The clip 21 keeps the two arm portions 21a and 21b arranged to be separated from each other in order to detachably hold the flange of the water pipe and the two arm portions 21a and 21b so that they can be opened and closed elastically. Therefore, the arm support portion 21c connecting the base end portions of the arm portions 21a and 21b and the diameter expansion provided at the distal end portions of the arm portions 21a and 21b in order to guide the flange of the water pipe between the arm portions 21a and 21b. Shaped guide portions 21d and 21e are provided. The clip 21 has the same shape as the clip 11 constituting the water pipe connector 10 described above.

  The cover 22 includes arm cover portions 22a and 22b that can be locked to the two arm portions 21a and 21b, respectively, and an arm cover portion 22a for keeping the two arm cover portions 22a and 22b openable and closable together with the arm portions 21a and 21b. , 22b connecting the base end portions of the clip 21 and the guide portions 21d, 21e of the clip 21 in the opening direction of the arm portions 21a, 21b. , 22e and connecting means provided at the distal ends of the arm cover portions 22a, 22b for connecting the arm cover portions 22a, 22b to each other. The base end portions of the arm cover portions 22a and 22b are connected to the cover support portion 22c through a hinge portion 22n.

  In the present embodiment, a fitting recess 22f provided at the distal end portion of the arm cover portion 22a and a fitting protrusion 22g provided at the distal end portion of the arm cover portion 22b are provided as connecting means. By fitting the two fitting protrusions 22g of the arm cover portion 22b into the two fitting recesses 22f of the arm cover portion 22a, the two arm cover portions 22a and 22b can be connected to each other.

  On the other hand, the arm support portion 21c of the clip 21 is provided with a through hole 21f, and a pair of engagement claws 22m that can be fitted into the through hole 21f are provided on the inner surface of the arm cover support portion 22c of the cover 22. . The cover 22 can be attached to the clip 21 by fitting the engaging claw 22 m of the cover 22 into the through hole 21 f of the clip 21.

  The usage of the water pipe connector 20 of the present embodiment is the same as that of the water pipe connector 10 described above, and as shown in FIG. 3, the water pipe connector 20 with the arm cover portions 22a and 22b open. The front end sides of the arm cover portions 22a and 22b are directed to the flanges 3 and 4 that are in the opposed contact state at the connecting portions of the water pipes 1 and 2.

  Thereafter, the water pipe connector 20 is brought close to the flanges 3 and 4, and the guide recesses 22 s and 22 t at the distal ends of the arm cover portions 22 a and 22 b are brought into contact with the outer periphery of the flanges 3 and 4. If the whole is pressed toward the flanges 3 and 4, the flanges 3 and 4 are sandwiched between the guide portions 21d and 21e of the clip 21, and along the guide portions 21d and 21e elastically expanded in diameter by the pressing force. It is guided and fits between the arm portions 21a and 21b. Thereby, the water pipe connector 20 is locked to the flanges 3 and 4 in the state shown in FIGS.

  When the water pipe connector 20 is further advanced along the flanges 3 and 4, the flanges 3 and 4 are fitted between the arms 21 a and 21 b of the clip 21, and the clip 21 and the cover 22 are connected to the flanges 3 and 4. Mounted on the outer periphery. Thereafter, when the arm cover portions 22a and 22b are connected to each other by fitting the fitting protrusion 22g at the tip portion of the arm cover portion 22b into the fitting recess 22f at the tip portion of the arm cover portion 22a, FIG. -It will be in the state shown in FIG. 20, and mounting | wearing of the water pipe connector 20 will be completed.

  When the water pipe connector 20 is attached, as a connecting means for the arm cover portions 22a and 22b, a fitting recess 22f at the tip of the arm cover portion 22a and a fitting protrusion 22g at the tip of the arm cover portion 22b It is possible to accurately confirm the mounting state of the clip 21 on the connection portion of the water pipes 1 and 2 by confirming visually or by sound whether or not the arm covers 22a and 22b can be coupled to each other. it can. Specifically, the water pipe connector 20 is visually confirmed from the direction opposite to the direction in which the water pipe connector 20 is attached or the water pipe connector 20 is attached along the outer periphery of the flanges 3 and 4 with the water pipe connector 20 attached. It can be rotated 180 degrees and visually confirmed from the mounting direction, or can be confirmed by sound generated when the fitting protrusion 22g is fitted into the fitting recess 22f.

  In this way, by attaching the water pipe connector 20 in the above-described procedure to the flanges 3 and 4 that are in opposed contact with each other at the connection part of the water pipes 1 and 2, the connection part is not separated. Can be fixed. The arm cover portions 22a and 22b constituting the water pipe connector 20 have openings 22d and 22e through which the guide portions 21d and 21e at the distal ends of the arm portions 21a and 21b of the clip 21 can penetrate in the diameter increasing direction. Therefore, it is not necessary to widen the arm cover portions 22a and 22b of the cover 22 even when the guide portions 21d and 21e of the clip 21 are enlarged during the mounting operation.

  Further, in the water pipe connector 20, as shown in FIG. 17, stoppers 22u and 22v that contact the inner side of the guide portions 21d and 21e of the clip 21 are provided on the back side of the guide recesses 22s and 22t, and the arm cover portion is provided. It regulates so that 22a and 22b do not open any more. For this reason, when the mounting operation is performed in a narrow place, the arm cover portions 22a and 22b are opened more than necessary, and the operation is not hindered by contact with surrounding members. When the arm portions 21a and 21b of the clip 21 are opened, the arm cover portions 22a and 22b may be opened accordingly, but the stoppers 22u and 22v are in contact with the inside of the guide portions 21d and 21e. It will not open larger than 21.

  In addition, since the water pipe connector 20 has a structure in which the clip 21 and the cover 22 are fixed, the cover 22 can be attached at the same time as the clip 21 is attached to the connection portion of the water pipes 1 and 2. Easy. Moreover, since the installation of the cover 22 is forgotten and the erroneous installation of the clip 21 is not overlooked, the trouble of water leakage from the connection portion after the installation can be eliminated. Further, since the arm support portion 21c of the clip 21 and the cover support portion 22c of the cover 22 are fixed in advance, the arm cover portions 22a and 22b are connected as in the case where the clip 21 and the cover 22 are attached separately. The means (the fitting recess 22f and the fitting protrusion 22g) do not need to pass the outer periphery of the guide portions 21d and 21e of the clip 21, and the opening degree (opening width) of the arm cover portions 22a and 22b can be further reduced. .

  Next, with reference to FIG. 21, FIG. 22, the water pipe connector which is 3rd Embodiment of this invention is demonstrated. 21 and 22 are exploded perspective views showing a water pipe connector 30 according to the third embodiment. In addition, in the component part of the water pipe connector 30 shown in FIG. 21, FIG. 22, about the part which exhibits the same function as the component part of the water pipe connector 20, the code | symbol same as the code | symbol shown in FIGS. A description thereof will be omitted.

  In the water conduit connector 30 of the present embodiment, a cover 32 can be attached to and detached from the clip 21. Therefore, after attaching the cover 32 to the clip 21 in advance and attaching it to the connecting portion of the water pipe, the clip 21 is first attached to the connecting portion of the water pipe, and then the cover 32 is attached to the clip 21. Can do.

  When attaching the clip 21 to the connecting portion of the water pipe and then attaching the cover 32, after attaching the clip 21 by sandwiching the flange of the water pipe between the two arms 21a, 21b constituting the clip 21, A cover 32 is attached along the outer periphery of the clip 21. In this case, when the cover 32 being attached passes outside the guide portions 21d and 21e of the arm portions 21a and 21b of the clip 21, the guide portions 21d and 21e are notched 32d in the arm cover portions 22a and 22b. , 32e can be penetrated.

  Therefore, when the arm cover portions 22a and 22b of the cover 32 pass outside the guide portions 21d and 21e, there is no need to open the arm cover portions 22a and 22b of the cover 32, and the connection of the water pipes in a relatively narrow place is possible. It can be easily attached to the part. Further, after the cover 32 is attached to the clip 21, the arm cover portions 22a and 22b can be connected to each other by the connecting means (the fitting recess 22f and the fitting protrusion 22g) at the tip of the arm cover portions 22a and 22b of the cover 32. Whether or not the clip 21 is attached to the connecting portion of the water pipe can be confirmed accurately by checking whether or not it is visually or with sound.

  Specifically, by visually checking from the direction opposite to the direction in which the cover 32 is attached, or with the water pipe connector 30 attached, the water pipe connector 30 is rotated 180 degrees along the outer periphery of the flange. It can be confirmed visually from the mounting direction or by sound generated when the fitting protrusion 22g fits into the fitting recess 22f. Other functions and effects are the same as those of the water pipe connector 20.

  The water pipe connector of the present invention can be widely used for a connection part of a water pipe piped under the floor or the like as a water supply / drainage path in a general house, a connection part of other pipes, and the like.

It is a perspective view which shows the water pipe connecting tool which is 1st Embodiment of this invention, and the connection part of a water pipe. It is a perspective view of the water pipe connector shown in FIG. It is sectional drawing in the AA of FIG. It is a perspective view which shows the state with which the water pipe connecting tool shown in FIG. 1 is mounted | worn with the connection part of the water pipe. It is a perspective view which shows the state with which the water pipe connecting tool shown in FIG. 1 is mounted | worn with the connection part of the water pipe. It is a perspective sectional view in the BB line of FIG. It is a perspective view which shows the state with which the water pipe connecting tool shown in FIG. 1 was mounted | worn in the connection part of the water pipe. It is a perspective view which shows the state with which the water pipe connecting tool shown in FIG. 1 was mounted | worn in the connection part of the water pipe. It is a perspective sectional view in the CC line of FIG. It is a perspective view which shows the use condition of the water pipe connecting tool shown in FIG. It is sectional drawing in the DD line of FIG. It is a perspective view which shows the water pipe connecting tool which is 2nd Embodiment of this invention. It is a perspective view of the water pipe connector shown in FIG. It is a top view of the water pipe connector shown in FIG. It is a perspective view which shows the state with which the water pipe connecting tool shown in FIG. 12 is mounted | worn in the connection part of the water pipe. It is a perspective sectional view in the EE line of FIG. It is sectional drawing in the EE line | wire of FIG. It is a perspective view which shows the state with which the water pipe connecting tool shown in FIG. 12 was mounted | worn in the connection part of the water pipe. It is a perspective sectional view in the FF line of FIG. It is sectional drawing in the FF line of FIG. It is a disassembled perspective view which shows the water pipe connecting tool which is 3rd Embodiment of this invention. It is a disassembled perspective view of the water pipe connector shown in FIG.

Explanation of symbols

1, 1a, 2, 2a Water pipe 3, 4 Flange 10, 20, 30 Water pipe connector 11, 21 Clip 11a, 11b, 21a, 21b Arm part 11c, 21c Arm support part 11d, 11e, 21d, 21e Guide part 11f, 21f Through-hole 12, 22, 32 Cover 12a, 12b, 22a, 22b Arm cover part 12c, 22c Cover support part 12d, 12e, 22d, 22e Opening part 12f Fitting hole 12g, 22g Fitting protrusion 12h, 12i Cross Bar 12j, 22u, 22v Stopper 12k Hook 12m Engagement projection 12n, 22n Hinge part 12s, 12t, 22s, 22t Guide recess 13 Header 22f Engagement recess 22m Engagement claw 32d, 32e Notch

Claims (4)

A water pipe connector that is attached to a connecting portion of water pipes in which two water pipes having flanges in the vicinity of the open end are connected with the flanges facing each other.
It is composed of a clip that is detachably engaged with the flange in contact with the opposite surface, and a cover that is detachably attached to the outer periphery of the clip.
The clip has two arm portions arranged so that the flange portions are detachably sandwiched between the distal end portions, and the base end portion of the arm portion to keep the two arm portions open and close elastically. An arm support portion that connects the two, and a guide portion having an enlarged diameter provided at a tip portion of the arm portion for guiding the flange between the arm portions,
The cover includes an arm cover portion disposed on the outside of the arm portion, a cover support portion connecting the base end portions of the arm cover portion to keep the arm cover portions openable and closable, and the guide portion. An opening or a notch formed in the arm cover part for allowing the arm part to penetrate in the opening direction, and a connecting means provided in the arm cover part for connecting the arm cover parts to each other. Features a water pipe connector.   The water pipe connector according to claim 1, wherein an arm support portion of the clip and a cover support portion of the cover body are fixed.   3. The water pipe connecting device according to claim 1, wherein a cross-sectional shape of at least a part of the arm portion of the clip is a U-shape capable of sandwiching the opposed flange in the axial direction of the water pipe.   The water pipe connector according to claim 2 or 3, further comprising an opening degree regulating means for regulating an opening degree of the arm cover part.

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