JP2019105349A - Connection structure of duct - Google Patents

Abstract

To provide a connection structure of a duct capable of surely temporarily fixing a base member for piping between base members for joint.SOLUTION: A base member for piping of a duct 7 for piping which is mounted on a mounting face W, and base members for joint which are mounted on mounting faces W of ducts 9, 10 for joint which protect a joint for connecting pipes, are connected by an engagement mechanism, and the engagement mechanism includes a projection portion 19 disposed on the base member of one side of the duct 7 for piping and the ducts 9, 10 for joint, and projected outward along a pipe axial direction of one side of the ducts, and an engaged portion disposed on a rear face opposed to the mounting face of the base member of the other duct, and engaged with the projection portion 19 from a rear face side in a plate thickness direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a duct connecting structure for connecting a pipe base member of a pipe duct for protecting a pipe and a joint base member of a joint duct.

  The duct is used to protect piping such as a water supply pipe and a hot water supply pipe. The length and direction of such piping are set in accordance with the layout of the equipment and the like. The duct is constructed so that the length and direction of the duct match the length and direction of the set pipe by connecting the joint duct to the pipe duct.

  Specifically, a state in which the piping base member of the piping duct and the joint base member of the joint duct are connected to an attachment surface such as a wall surface or a ceiling surface on which the pipe is arranged through an engagement mechanism. Fix it with a screw.

  By the way, the engagement mechanism for connecting the piping duct and the joint duct is formed so as to protrude outward in the axial direction of the pipe at both ends in the axial direction of the joint base member and to be separated from the mounting surface by a predetermined distance. Of the joint base member fixed to the mounting surface, and the projection of the joint base member fixed to the mounting surface. The joint base member and the piping base member are connected in a state where the end portion in the pipe axial direction is inserted between the and the mounting surface (for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 11-82867

  However, in the configuration of Patent Document 1, first, the joint base members are respectively arranged at a plurality of positions of the mounting surface where the joint is arranged, and for piping between the adjacent joint base members, In the case of a construction procedure in which the base member is disposed, both ends of the piping base member must be inserted between the projection of each joint base member and the mounting surface while bending the piping base member. . Therefore, in the case of a short dimension in which the pipe base member can not be bent, the pipe base member may not be connected between the joint base members in some cases, and early improvement is desired.

  SUMMARY OF THE INVENTION In view of the above-described situation, the present invention provides a duct connection structure capable of reliably connecting a piping base member and a joint base member.

  The duct connection structure of the present invention connects the pipes with the pipe base member mounted on the mounting surface of the pipe duct for protecting the pipes disposed along the mounting surface, in order to solve the problems described above. A duct connection structure for connecting with a joint base member attached to the attachment surface of a joint duct for protecting a joint by an engagement mechanism, wherein the engagement mechanism includes the pipe duct and the joint duct. Provided on a base member of one of the ducts, and on a back surface facing a mounting surface of a base member of the other duct, and a protrusion projecting outward along the tube axis direction of the one duct, The projecting portion is characterized by including an engaged portion engaged in the thickness direction from the back surface side.

  According to the present invention, in the case where the other base members are engaged and connected between adjacent ones of the base members attached to the mounting surface with a predetermined distance apart, the other base members are adjacent to each other By fitting between the base members, the protrusion provided on one base member and the engaged portion provided on the back surface of the other base member are engaged in the thickness direction on the back surface side. By this engagement, it is possible to prevent the other base member from moving in the direction of separating in the thickness direction with respect to one of the base members, and securely connect the piping base member and the joint base member. be able to.

  Further, in the duct connection structure of the present invention, the projecting portions may be provided at both ends in the pipe axis direction of the joint base member, and the engaged portions may be provided in the piping base member.

  As described above, by providing the projecting portions on both ends of the joint base member in the pipe axis direction, the joint base members are first attached to a plurality of mounting surfaces with a predetermined distance apart, and thereafter, for adjacent joints The base members can be reliably connected in a construction procedure in which the pipe base members are connected between the base members.

  Further, in the connection structure of a duct according to the present invention, the engaged portion is a recessed portion recessed from the back surface to the front surface side of the base member of the other duct, and the projecting portion is in the recessed portion. It may be configured to be fitted, and the outer surface of the protrusion and the inner surface of the recess may be engaged in the thickness direction.

  As described above, the protrusion can be covered with the other base member by fitting the protrusion in the recess and engaging the outer surface of the protrusion with the inner surface of the recess in the thickness direction.

  According to the present invention, the projection on the one base member and the engaged portion on the back surface of the other base member are engaged in the thickness direction on the back surface side, whereby the piping base member and the joint are obtained. It is possible to provide a duct connection structure that can be reliably connected to the base member.

It is a front view which shows the state which engaged and temporarily fixed the piping duct between two coupling ducts. It is a front view of the principal part which shows the state which engaged the duct for piping with the end of one duct for fittings. It is the III-III sectional view taken on the line in FIG. It is sectional drawing which shows the state in front of becoming in the state of FIG. It is a perspective view of the duct for joints. It is a bottom view of the duct for fittings. It is the VII-VII sectional view taken on the line in FIG. It is a perspective view of the duct for piping. It is sectional drawing which shows another form of the duct for piping. (A) A front view of the main part showing a state in which the piping duct is engaged with the end of one of the joint ducts having different engagement structures, and (b) is a sectional view taken along the line X-X in FIG. It is.

  Hereinafter, embodiments of the present invention will be described based on the drawings.

  In FIG. 1, two straight straight lines extending downward through L-shaped joints 3 and 4 for connection to the left ends of the two straight horizontally extending fluid pipes 1 and 2 juxtaposed vertically The fluid pipes 5, 6 are connected. And, it is connected to a piping duct 7 or 8 for protecting by covering these two fluid pipes 1, 2 or 3 and 4 and two joints 3 and 4 and two joints 3 and 4 A duct connection structure is shown, including joint ducts 9 and 10 for protecting the end portions of the fluid pipes 1, 2, 5 and 6. The lower part of the joint duct 9 at the right end of FIG. 1 is the same as that on the left side, and the illustration and the description are omitted. One of the two fluid pipes 1 and 2 may be a hot water supply pipe through which hot water flows, and the other may be a water supply pipe through which water flows, but both may be hot water supply pipes, or both are water supply pipes It is also good. The joint ducts 9 and 10 may be configured to protect only the two joints 3 and 4.

  Since the two joint ducts 9 and 10 have the same configuration, if one of the joint ducts 10 is described, as shown in FIG. 5, the joint duct 10 has a mounting surface such as a wall surface or a ceiling surface (see FIG. 1) Two joints 3, 4 and 2 joints 3 between the joint base member 11 fixed to the wall surface W and the joint base member 11 attached by engagement to the joint base member 11. , 4 and a joint cover member 12 forming a housing space for housing a part of the fluid pipes 1, 2, 5 and 6. The joint base member 11 and the joint cover member 12 are formed of various synthetic resins.

  As shown in FIGS. 5 and 6, the joint base member 11 is an L-shaped plate-like joint body 11A having a flat upper surface 11a, and both ends in the axial direction of the outer periphery of the joint body 11A. In addition, the first upright walls 11B and 11B for forming two connection ports X1 and X2 with the joint cover member 12 are formed. Each first upright wall 11B has a central portion configured to have the same height, and has a curved shape such that both end portions located on both sides in the width direction of the central portion are positioned upward toward the end. A second upright wall 11C bent in an L shape is formed at an outer edge of the outer peripheral edge of the joint body 11A, and an inner edge is bent in an L shape having a length shorter than the second upright wall 11C. Three standing walls (not shown) are formed. A plurality of (two in FIG. 5) for preventing generation of a loud noise due to surface contact at the time of contact with the end face of the piping base member 22 on the outer end face of the first upright walls 11B and 11B. The projections 11T and 11T are provided.

  In addition, first to fifth points of the bottom surface of the second upright wall 11C are upwardly recessed in a total of five places in the longitudinal direction of two linear parts respectively located on one side of the curved part and two linear parts located on both sides across the curved part. The recessed grooves 13, 14, 15, 16, 17 are formed. Between the first concave groove 13 formed in the curved portion of the first to fifth concave grooves 13 to 17 and the third concave groove 15 formed at the end of one straight portion, and the first concave groove The first engaging claws 20 and 20 described later engage with the second concave groove 14 and the fourth concave groove 16 located between the third groove 13 and the fifth concave groove 17 formed at the end of the other linear portion. . Further, a sixth recessed groove 18 recessed upward is formed in the curved portion of the bottom surface of the third upright wall. Two second engaging claws 21 and 21 described later engage with the sixth recessed groove 18. In FIG. 6, a plurality of (four in FIG. 6) long holes B1... Through which the screws pass are formed.

  Further, as shown in FIGS. 3 to 5, the protruding portions 19 protruding outward along the tube axis direction are provided on both ends in the tube axis direction of the joint base member 11, that is, the first standing walls 11B and 11B. It is integrally formed. The protrusion 19 is a linear rod-shaped member extending along the tube axis direction from the center in the width direction of the end of the joint base member 11 in the tube axis direction, and will be described later as shown in FIG. The main body portion 19A is configured to be fitted into the concave portion 25 which is a locked portion and fitted into the concave portion 25, and a neck portion 19C extending downward from the lower end of the main body portion 19A. The projecting portion 19 and the concave portion 25 which is an engaged portion to be described later constitute an engagement mechanism for connecting the piping ducts 7 and 8 and the joint ducts 9 and 10. Therefore, the outer surface of the protrusion 19 and the inner surface of the recess 25 described later engage in the thickness direction. The main body portion 19A is formed in a circular arc shape from both ends in the width direction of the first portion 19a having a rectangular shape and a cross-sectional shape formed to have the same width from the lower end to the upper end, and the upper end circle And a second portion 19b in which a V-shaped long groove 19m is formed at the central portion in the width direction of the arc-shaped surface and extending in the entire tube axial direction. The neck portion 19C is formed to have a width smaller than the width of the main portion 19A, and corner portions 19s and 19s are formed at both ends in the width direction of the lower end of the first portion 19a, and these corner portions 19s and 19s will be described later By engaging the protrusions 25T, 25T, the protrusion 19 is held in the recess 25.

  The joint cover member 12 is L-shaped flat in a plan view so as to form the two connection ports X1 and X2 with the first upright walls 11B and 11B as shown in FIGS. 5, 6 and 7. The L-shaped outer wall 12B extending downward from the outer peripheral edge of the plate-like top wall 12A and the upper wall 12A, and the L-shaped inner side wall 12C extending downward from the inner peripheral edge of the top wall 12A. The second concave groove 14 and the fourth concave groove 16 are provided at the lower portion of the inner surface of the substantially central portion in the lengthwise direction of each of the two straight portions located on both sides of the curved portion of the outer wall 12B. The first engagement claws 20, 20 engaged in the thickness direction (vertical direction) are integrally formed. The thickness direction of the joint base member 11 in the sixth recessed groove 18 (upper and lower portions in the lower portion of the inner surface of the substantially central portion in the lengthwise direction of each of the two straight portions located on both sides across the curved portion of the inner wall 12C Direction) is integrally formed.

  Each first engagement claw 20 includes a rectangular plate portion 20A having a flat upper surface, and a plurality of (six in FIG. 6) ribs 20B supporting the plate portion 18A from below. As shown in FIG. 7, the rib 20B is formed in a triangular shape which is tapered toward the lower side. Similar to the first engagement claw 20, each second engagement claw 21 has a flat (flat) parallelogram-shaped plate portion 21A having a flat upper surface, and a plurality (four in FIG. 6) of supporting the plate portion 21A from below. And the ribs 21B. Each rib 21B is inclined with respect to the inner surface of the inner side wall 12C. Each rib 21B is configured in a triangular shape that tapers downward.

  As shown in FIGS. 8 and 9, the piping duct 7 engages with the piping base member 22 fixed to the mounting surface (the wall surface in FIG. 1) W such as a wall surface or a ceiling surface, and the piping base member 22. And a piping cover member 23 which is detachably mounted to form a housing space between the piping base member 22 and the two fluid pipes 1, 2. The piping base member 22 and the piping cover member 23 are formed of various synthetic resins.

The piping base member 22 has a straight plate-like piping main body 22A having a flat upper surface 22a, and both ends of the piping main body 22A in the width direction (direction orthogonal to the pipe axis direction) of the piping base member 22. The claw receiving portions 22B and 22B as integrally engaged portions that project upward in the thickness direction and engage with third engaging claws 35 and 35 of the piping cover member 23 described later are integrally formed. Moreover, since the piping base member 22 and the piping cover member 23 are long, they are formed by extrusion molding. At the same time, the claw receiving portions (engaged portions) 22B and 22B provided on the piping base member 22 and the third engaging claws (engaging portion) 35 and 35 provided on the piping cover member 23 at the same time during extrusion molding can be simultaneously formed. There is an advantage that can be done. Moreover, the recessed part 25 is provided in the back surface which opposes the attachment surface W of the width direction center part of the main body 22A for piping. The concave portion 25 is an engaged portion which is concavely provided inside the convex portion 24 which is formed to project from the back surface of the piping main body 22A toward the front surface side.
Therefore, by engaging the protrusion 19 with the recess 25 in the thickness direction from the back surface side, the joint base member 11 and the pipe base member 22 can be connected, and the joint base member 11 can be connected. It is possible to prevent the piping base member 22 from moving in the direction of separating in the thickness direction. The recess 25 is formed over the entire area in the length direction of the piping base member 22, but may be formed only at both ends of the piping base member 22.

  At both ends in the width direction at the end of the bottom surface side (the back surface side facing the mounting surface W) of the recess 25, protrusions 25 T projecting inward are formed over the entire area in the length direction of the piping base member 22. The projections 19 are prevented from moving from the recess 25 to the outside by the corners 19s, 19s of the main body 19A constituting the projection 19 engaging with the upper end surfaces of the projections 25T, 25T. . That is, the pipe base member 22 is prevented from moving in the direction of separating in the plate thickness direction with respect to the joint base member 11.

  Each claw receiving portion 22B includes a vertical plate portion 26 extending upward from the widthwise end of the piping main body 22A, a first horizontal plate portion 27 projecting horizontally inward from an upper end of the vertical plate portion 26, and a first horizontal plate It includes an inclined plate portion 28 extending obliquely upward from the inner end of the portion 27 outward in the width direction, and a second horizontal plate portion 29 projecting outward in the horizontal direction from the upper end of the inclined plate portion 28. In FIG. 9, the tip end of the third engagement claw 35 described later engages with the boundary between the inclined plate portion 28 and the second horizontal plate portion 29, and the pipe cover member 23 with respect to the pipe base member 22. Is fixed. One of the pair of left and right leg portions 37, 37 of the support members 36, 36 supporting the fluid pipes 1, 2 described later by the piping main body 22A, the vertical plate portion 26 and the first horizontal plate portion 27 (outside A first locking recess 30 for locking and supporting the legs 37).

  In addition, a pair of horizontal plate portions 31 and 31 projecting outward in the width direction from both ends in the width direction of the upper end of the gate-shaped convex portion 24 are integrally formed. The pair of left and right leg portions 37, 37 of the support members 36, 36 supporting the fluid pipes 1, 2 described later by the piping main body 22A, the horizontal plate portions 31, 31 and both side wall portions 24A, 24A of the convex portion 24. Second locking recesses 32, 32 for locking and supporting the other leg 37 of the two are formed.

  Further, plate-like holding portions 33, 33 protruding upward are integrally formed on the upper surface of the gate-shaped convex portion 24. As shown in FIG. 9, a partition plate 34 for dividing the housing space of the piping duct 7 into two spaces in the width direction is sandwiched in the sandwiching portions 33 and 33. The partition plate 34 includes a plate-like vertical plate portion 34A directed upward, and a horizontal plate portion 34B bent from the upper end of the vertical plate portion 34A toward one of the two spaces (on the left side in FIG. 9). ing. By providing the horizontal plate portion 34B, when the ceiling wall portion 23A of the piping cover member 23 is subjected to an impact force, the horizontal plate portion 34B receives the impact force and absorbs a part of the impact force. Damage to the member 23 can be prevented. Further, by providing the vertical plate portion 34A of the partition plate 34, it is possible to suppress a decrease in the hot water supply temperature of the hot water supply pipe accommodated in one narrowed space by dividing the space into two spaces.

  The piping cover member 23 is a plate-like top wall portion 23A having a flat top surface, and a pair of plate-like side wall portions 23B that are curved so as to expand outward from both widthwise ends of the top wall portion 23A. , And 23B.

  A third engagement claw 35, which is an engagement portion engaged with the claw receiving portion 22B, is integrally formed on the lower surface of each side wall portion 23B. Each of the third engagement claws 35 is formed over the entire area in the longitudinal direction of the piping cover member 23, and is formed of a linear plate-like portion extending obliquely upward toward the inside. The third engagement claw 35 engages with the boundary between the inclined plate portion 28 and the second horizontal plate portion 29 as described above to engage the piping cover member 23 with the piping base member 22. It is fixed by.

  As shown in FIG. 9, a pair of support members 36, 36 for supporting the fluid pipes 1, 2 at a predetermined distance from the upper surface of the pipe base member 22 can be engaged and disengaged with the pipe base member 22. Is attached to As described above, each support member 36 is engaged with and fixed to the first locking recess 30 and the second locking recess 32 formed in the piping base member 22. And vertical portions 38, 38 extending upward from the inner ends of the legs 37, 37, a pair of curved portions 39, 39 curved so as to expand outward from the upper end of the piping cover member 23, and the curved portions An arc-shaped connecting portion 40 which connects the 39 and 39 and contacts the outer surface of the fluid pipe 1 or 2 and an arc shape so as to continuously extend downward from both ends in the width direction of the connecting portion 40 And holding portions 41, 41 for holding the both sides in the width direction of 1 or 2 in a sandwiching manner.

  Next, the construction procedure will be described. As shown in FIG. 1, the plurality of (two in FIG. 1) joint base members 11 of the above configuration are fixed to the wall surface W at a distance corresponding to the length of the piping base member 22. Subsequently, in a construction procedure in which the pipe base member 22 is disposed by engagement between the two joint base members 11 and 11 later, one of the joint base members 11 (on the left in FIG. 1) is provided. In the projecting portion 19 provided on the other projecting portion 19 and the other (the right side in FIG. 1) the joint base member 11, plate thickness is formed on the back surface side of the concave portion 25 which is an engaged portion formed at both ends of the piping base member 22. In the right direction, that is, on the back surface side of the piping base member 22, the recessed portions 25 opened on the back surface opposite to the wall surface W of the piping base member 22 are projected on the projecting portions 19 and 19 of the left and right joint base members 11, 11. By engaging, the piping base member 22 and the left and right joint base members 11 and 11 can be reliably connected. At this time, as shown in FIG. 4, the projections 25T and 25T of the recess 25 of the piping base member 22 abut on the projecting portion 19 to move the piping base member 22 while spreading the opening of the recess 25. Then, the protrusions 25T, 25T pass through the corner portions 19s, 19s, and fit in the main body portion 19A of the projecting portion 19 in the concave portion 25, and the outer surface of the projecting portion 19 and the concave portion 25 as shown in FIG. The inner surface engages in the thickness direction. After engagement, it is possible to prevent the piping base member 22 from moving in the direction of separating in the thickness direction with respect to the two joint base members 11 and 11, and temporarily fixing the piping base member 22. Is complete.

  After temporary fixing of the piping base member 22 is completed, the piping base member 22 is fixed to the wall surface W with a fixing tool such as a screw, and then the joints 3, 4 and the fluid pipes 1, 2, 5, 6 are used for piping. After being accommodated in the base member 22 and the joint base member 11, the pipe cover member 23 and the joint cover member 12 are fixed to the pipe base member 22 and the joint base member 11 by engagement, and the operation is completed. .

  The present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.

  In the above embodiment, the L-shaped joint ducts 9 and 10 are used, but a T-shaped joint duct may be used, or a straight joint duct used when extending the length of the duct. It may be

  Moreover, in the said embodiment, although the base part 11 for couplings was equipped with the protrusion part 19, and the base member 22 for piping was equipped with the to-be-engaged part 25, as shown to Fig.10 (a), (b), piping The base member 22 may be provided with a protrusion 22T, and the joint base member 11 may be provided with a recess 11H which is an engaged portion. The recessed portion 11H is a recessed portion opened on the surface side opposite to the wall surface W in the protruding portion 11D which protrudes outward in the tube axis direction from the widthwise central portion of the joint base member 11. In addition, the protrusion 22T includes a main body 42 having a triangular cross-sectional shape (a rectangular shape, a circular shape, or any other shape), and a neck 43 having a width smaller than that of the main body 42. Covering parts 22H and 22H covering both sides in the width direction of the projecting part 11D of the joint base member 11 when connecting the joint base member 11 and the pipe base member 22 are provided on both sides in the width direction of the pipe base member 22 There is.

  Moreover, in the said embodiment, although the base part 11 for couplings was equipped with one protrusion part 19, it equips the base member 11 for couplings or the base member 22 for piping with several protrusion, and it engages with several protrusion. The same number of engaged portions may be provided on the pipe base member 22 or the joint base member 11.

  Moreover, in the said embodiment, although the base member 22 for piping and the cover member 23 for piping were fixed by engagement, even if it fixes the base member 22 for piping and the cover member 23 for piping by fixing tools, such as a screw. Good. The joint base member 11 and the joint cover member 12 may also be fixed by a fixing tool such as a screw.

  1, 2 ... fluid pipes, 3, 4 ... fittings, 5, 6 ... fluid pipes, 7, 8 ... ducts for piping, 9, 10 ... ducts for fittings, 11 ... base members for fittings, 11A ... main bodies for fittings, 11 B ... 1st standing wall, 11C ... 2nd standing wall, 11H ... recessed part, 11T ... projection part, 11a ... top surface, 12 ... cover member for joint, 12A ... top wall, 12B ... outside wall, 12C ... inside wall, 13, 14, 15, 16, 17, 18 ... 1st to 6th concave groove, 18A ... plate portion, 19 ... projection portion, 19A ... main body portion, 19C ... neck portion, 19a ... first portion, 19b ... second portion, 19m ... long groove , 19s: corner portion, 20: first engagement claw, 20A: plate portion, 20B: rib, 21: second engagement claw, 21A: plate portion, 21B: rib, 22: piping base member, 22A: piping Body 22B: claw receiving part 22H: covering part 22T: projecting part 22a: upper surface 23: arrangement Cover member, 23A: top wall portion, 23B: side wall portion, 24: convex portion, 24A: side wall portion, 25: concave portion (engaged portion), 25T: projection, 26: vertical plate portion, 27: horizontal plate portion 28: inclined plate portion 29: second horizontal plate portion 30: first locking recess 31: horizontal plate 32: second locking recess 33: clamping portion 34: partition plate 34A ... Vertical plate portion 34B Horizontal plate portion 35 Third engagement claw 36 Support member 37 Leg portion 38 Vertical portion 39 Curved portion 40 Connecting portion 41 Holding portion 42 ... Body part, 43 ... Neck part, B1 ... Long hole, W ... Wall surface, X1, X2 ... Connection port

Claims (3)

A base member for piping mounted on the mounting surface of a piping duct for protecting piping disposed along a mounting surface, and a joint base for mounting on the mounting surface for a coupling duct for protecting a coupling for connecting the piping. A duct connection structure for connecting a member with an engagement mechanism, comprising:
The engagement mechanism is provided on a base member of one of the piping duct and the joint duct, and a protrusion which protrudes outward along the axial direction of the one duct, and the other A duct connecting structure comprising: an engaged portion provided on a back surface opposite to a mounting surface of a base member of the duct, wherein the projecting portion engages in the thickness direction from the back surface side.   The duct connection structure according to claim 1, wherein the projecting portion is provided at both ends of the joint base member in the tube axis direction, and the engaged portion is provided to the piping base member. .   The engaged portion is a recess which is recessed from the back surface to the front surface side of the base member of the other duct, and the protrusion is configured to be fitted in the recess, the protrusion The connecting structure of ducts according to claim 1 or 2, wherein the outer surface of the second housing engages with the inner surface of the recess in the thickness direction.

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