Floor heating panel installation structure and installation method

Abstract

To provide a floor heating panel installation structure and a method that facilitate connection work of main pipes and branch headers without enlarging a floor hole.SOLUTION: A base plate 20 is installed so as to cover a portion of a floor hole 3. Branch headers 30 and 40 are arranged in the floor hole 3 behind the base plate 20, and main pipes 1 and 2 and hot water pipes 14 are connected. The hot water pipes 14 are drawn to a front edge part of the base plate 20 through a concave part 24. The base plate 20 does not exist below the branch headers 30 and 40.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a floor heating panel installation structure in which the hot water piping of the floor heating panel is connected to the main piping under the floor via a branch header, and in particular to a floor heating panel installation structure using a base plate that guides the hot water piping. The present invention also relates to a floor heating panel installation method for achieving this structure. [Background technology]

[0002] A widely used floor heating panel has a base plate with a groove on the top surface for routing hot water piping through the groove. A floor heating panel for heating a large floor area is provided with multiple hot water pipes (multiple circuits).

[0003] In a floor heating panel equipped with multiple hot water piping circuits, hot water from a boiler or the like is supplied from the main supply pipe to each hot water pipe via a branch header. The hot water drops in temperature as it flows through each hot water pipe, and returns to the boiler or the like from the end of the return hot water pipe via the branch header and the main return pipe, where it is heated again and sent out to the main supply pipe.

[0004] Patent Document 1 describes a structure in which a base plate is placed on the floor and the hot water piping of the floor heating panel is connected to the main piping arranged under the floor, and the hot water piping is guided by the base plate to the vicinity of a floor opening and connected to the main piping via a branch header.

[0005] In Patent Document 1, the base plate has a thick plate portion that engages with a floor opening, and the upper surface of the thick plate portion is a recess. An opening is provided on the bottom surface of the recess. The header body of the branch header is placed in the recess, and the main pipe is installed in a main pipe installation nozzle that protrudes downward from the header body.

[0006] To connect the main pipe to the branch header, the main pipe is passed from bottom to top through the opening in the recess of the base plate, and then the main pipe installation nozzle is inserted into the upper end of the main pipe (Figures 15 and 16 of Patent Document 1). However, because the opening at the bottom of the recess is narrow, it is not easy to pass the main pipe through the opening.

[0007] To enlarge the recess opening, it is necessary to increase the diameter of the thick plate, but in this case, the opening (floor hole) in the building floor must also be made larger. However, from the viewpoint of ensuring the strength and rigidity of the floor after the floor heating panel is installed, it is not appropriate to make the floor hole excessively large. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] JP 2013-228138 A Summary of the Invention [Problem to be solved by the invention]

[0009] The present invention aims to provide a floor heating panel installation structure and installation method that facilitates the connection work between the main pipe and the branch header without having to enlarge the floor hole of the building. [Means for solving the problem]

[0010] The present invention relates to the following.

[0011] [1] A floor heating panel installation structure in which multiple hot water pipes of a floor heating panel are connected to the main pipe under the floor via a branch header, As the branch headers, a forward branch header to which the forward main pipe and the forward hot water pipe are connected, and a return branch header to which the return main pipe and the return hot water pipe are connected are installed, A base plate is installed near a floor hole provided in the floor, and the hot water pipe is engaged with the base plate; In the floor heating panel installation structure, the branch header includes a header body, a main pipe connection portion protruding from the bottom surface of the header body and connected to the main pipe, and a hot water pipe connection portion provided on a side surface of the header body and connected to the hot water pipe, The base plate is provided with a recess facing a rear edge of the branch header, A floor heating panel installation structure, characterized in that at least the header body of the branch header is disposed within the floor hole rearward of the rear edge of the base plate.

[0012] [2] A floor heating panel installation structure as in [1], in which the hot water piping connection portion of one branch header is inserted into the recess.

[0013] [3] A floor heating panel installation structure as in [2], in which the hot water piping connection portion of the other branch header is located above the header body of the one of the branch headers.

[0014] [4] A thick plate portion protruding downward is provided at the rear edge portion of the base plate, The recess is provided in the thick plate portion, A floor heating panel installation structure according to any one of [1] to [3], wherein the thick plate portion is disposed within the floor hole.

[0015] [5] A floor heating panel installation structure as set forth in [4], in which ribs are provided on the thick plate portion.

[0016] [6] A rear edge of the base plate covers a portion of the floor hole; A floor heating panel installation structure according to any of [1] to [5], in which a pressure plate is provided to cover the remaining portion of the floor hole.

[0017] [7] A floor heating panel installation structure according to any one of [1] to [6], wherein the base plate is not present below the header body.

[0018] [8] A method for installing a floor heating panel to construct a floor heating panel installation structure according to any one of [1] to [7], Pulling the main pipe out from under the floor through the floor hole onto the floor; a step of connecting a branch header connected to the hot water piping to the main piping; a step of placing the base plate under the hot water piping, returning the main piping under the floor, and placing at least the header body of the branch header in the floor hole behind the base plate; A method for installing a floor heating panel. Effect of the Invention

[0019] According to the present invention, the branch header is positioned in a floor hole rearward of the base plate, and the main pipe can be easily pulled out onto the floor and connected to the branch header without making the floor hole larger. [Brief description of the drawings]

[0020] [Figure 1] FIG. [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. [Diagram 5] 2 is a cross-sectional view taken along line VV in FIG. 1. [Figure 6] 6 is a cross-sectional view taken along line VI-VI in FIG. [Figure 7] 7 is a cross-sectional view taken along line VII-VII in FIG. [Figure 8] FIG. 1 is a plan view of a base plate with a branch header. [Figure 9] FIG. [Figure 10] FIG. 1 is a cross-sectional view of a base plate through which a main pipe and a hot water pipe pass. [Figure 11] FIG. 2 is a plan view of the floor heating panel. [Figure 12]FIG. 11 is a plan view of a base plate according to another embodiment. [Figure 13] FIG. 13 is a side view of the base plate of FIG. 12. [Figure 14] FIG. 13 is a rear view of the base plate of FIG. 12. [Figure 15] 13 is a cross-sectional view taken along line XV-XV of FIG. 12. [Figure 16] 16 is a cross-sectional view taken along line XVI-XVI in FIG. 12. [Figure 17] 13 is a cross-sectional view taken along line XVII-XVII in FIG. 12. [Figure 18] 18 is a cross-sectional view taken along line XVIII-XVIII in FIG. 17. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Hereinafter, an embodiment will be described with reference to the drawings.

[0022] In a floor heating system using this floor heating panel installation structure, as shown in Fig. 11, hot water from a boiler (not shown) is supplied to the supply side of hot water pipe 14 of floor heating panel 10 via supply side main pipe 1 (Fig. 10) and branch header 30, and cooled hot water from the return side of hot water pipe 14 is returned to the boiler via branch header 40 and return side main pipe 2 (Fig. 10), where it is heated again and circulated. First, the floor heating panel 10 will be explained with reference to Fig. 11.

[0023] [Explanation of floor heating panel] This floor heating panel 10 is configured such that multiple, roughly rectangular base plates 11 and multiple small joists 12 are arranged alternately with their respective longitudinal directions parallel to each other, and hot water pipes 14 are routed within grooves for piping formed on the upper surface of each base plate 11. A heat equalizing sheet (not shown) is attached to the upper surface of the base plate 11 so as to cover the grooves housing the hot water pipes 14.

[0024] In this embodiment, the floor heating panel 10 has three hot water pipes 14 arranged in total, forming a triple hot water circulation pipe configuration. The hot water pipes 14 are arranged continuously from one adjacent board 11 to the other adjacent board 11.

[0025] A cutout 15 is provided at a corner of the base plate 11A, and a base plate 20 is disposed within this cutout 15. As shown in Fig. 10, a floor hole 3 having a diameter or one side of about 50 to 150 mm is provided in a floor 4 of a room in a building, and a base plate 20 is installed on the floor 4 near this floor hole 3. As will be described in detail later, branch headers 30, 40 are disposed on the rear side of this base plate 20, and ends of each hot water pipe 14 are connected to hot water pipe connection nozzles 33, 43 of each branch header 30, 40.

[0026] [Base plate description] 1 to 8, the base plate 20 is a generally rectangular flat plate, with a thin plate section 21 on the front half, i.e., one half in the direction in which the hot water piping extends (left-right direction in FIG. 1), and a thick plate section 23 provided near the center of the rear edge. The width of the thick plate section 23 in the left-right direction (up-down direction in FIG. 1) is smaller than the width of the thin plate section 21 in that direction. The top surface of the rear edge of the base plate 20 is lower than the top surface of the thin plate section 21 by the thickness of a pressing plate 46 described below.

[0027] The thick portion 23 is provided with a wide groove-like recess 24 recessed from the upper surface. A bottom surface 24a of the recess 24 slopes downward toward the rear edge of the base plate 20 (the edge on the left side in FIG. 1). The recess 24 faces the rear surface of the base plate 20.

[0028] A plurality of slits 27 (six in this embodiment) may be provided extending from the recess 24 to the front edge of the base plate 20 (the edge on the right side in FIG. 1). A thin and long partition wall 28 is provided between the adjacent slits 27. The distance between the adjacent slits 27 becomes larger as the distance from the recess 24 approaches the front edge of the base plate 20.

[0029] The base plate 20 is provided with screw insertion holes 29 for fastening the base plate 20 to the floor 4.

[0030] [Branch Header Description] As shown in Figure 9, the branch headers 30, 40 each include a rectangular parallelepiped header body 31, 41, a main pipe connection nozzle 32, 42 as a main pipe connection part that protrudes downward from the bottom surface of the header body 31, 41, and a hot water pipe connection nozzle 33, 43 as a hot water pipe connection part that protrudes laterally from one longitudinal side surface of the header body 31, 41.

[0031] The branch headers 30, 40 may be connected to the hot water piping 14 of the floor heating panel 10 in advance, or may be connected to the hot water piping 14 at the construction site.

[0032] [Installation procedure for floor heating panel 10] The floor heating panel is deployed and placed in a prescribed position on the floor 4 of the building. If the branch headers 30, 40 have not yet been connected to the hot water pipes 14, connect the hot water pipes 14 to the hot water pipe connection nozzles 33, 43 of each branch header 30, 40 and fasten them with bands (not shown). Before or after placing the floor heating panel 10, a floor hole 3 is opened in the floor 4 in accordance with the position of the cutout portion 15. The main pipes 1, 2 under the floor are pulled out onto the floor through this floor hole 3. The main pipes 1, 2 are then attached to the main pipe connection nozzles 32, 42 of the branch headers 30, 40 and fastened with bands (not shown).

[0033] Next, the thick plate portion 23 of the base plate 20 is inserted into the floor hole 3, and the thin plate portion 21 is placed on the floor 4. Then, while returning the main pipes 1, 2 to the underside of the floor 4, the hot water pipes 14 are engaged with the slits 27 and recesses 24, and the branch headers 30, 40 are placed in the floor hole 3. The hot water pipes 14 connected to the branch header 30 engage with the even-numbered slits 27 from the top in Figure 8. The hot water pipes 14 connected to the branch header 40 engage with the odd-numbered slits 27 from the top in Figure 8.

[0034] At this time, it is preferable to position the header bodies 31, 41 of the branch headers 30, 40 in the floor hole 3 and insert the hot water pipe connection nozzle 33 of the branch header 30 into the recess 24. It is also preferable to position the hot water pipe connection nozzle 43 of the branch header 40 above the header body 31 of the branch header 30. There is no base plate 20 below the header bodies 31, 41 of the branch headers 30, 40.

[0035] Next, the base plate 20 is fixed to the floor 4 by screwing a screw through the screw insertion hole 29 into the floor 4. After that, as shown in Figure 10, a presser plate 46 is placed so as to cover the floor hole 3 on the rear side of the base plate 20, and the presser plate 46 is fixed to the floor 4 with a screw. In this embodiment, the left and right width of the presser plate 46 is approximately equal to the left and right width of the base plate 20. In this embodiment, the front edge of the presser plate 46 overlaps the rear edge of the base plate 20, but the two may be butted together without overlapping.

[0036] In this floor heating panel installation structure and installation method, the main pipes 1, 2 are pulled out onto the floor through the floor hole 3 before the base plate 20 is installed, and the branch headers 30, 40 are connected to the main pipes 1, 2, so that the connection work between the branch headers 30, 40 and the main pipes 1, 2 can be easily performed without making the floor hole 3 larger.

[0037] The present invention is thin, having a thickness of 5mm to 9mm, for example 5.5mm, and is suitable for connecting the hot water piping of a large-area floor heating panel having two or more (for example, 2 to 10) hot water piping circuits to the main piping.

[0038] The above embodiment is one example of the present invention. The present invention may be embodied in other forms. For example, the supply side main pipe may be connected to the branch header 40, and the return side main pipe may be connected to the branch header 30. In addition, in the above embodiment, the main pipe connection part and the hot water pipe connection part are each formed as a nozzle, but these connections are not limited to nozzles, and may be structured to allow socket-shaped joints to be attached and detached.

[0039] [Description of the base plate 60 according to another embodiment] In the present invention, ribs may be provided on the thick plate portion of the base plate to increase the strength and rigidity of the base plate. An example of a base plate 60 is shown in Figs. 12 to 18. The base plate 60 is a substantially rectangular plate, and both ends in the longitudinal direction, i.e., the direction perpendicular to the hot water pipe extension direction (left and right direction in Fig. 1), are thin plate portions 61 (Fig. 12), and a thick plate portion 63 is provided near the center in the longitudinal direction. As shown in Fig. 13, the upper surface of the rear edge portion of the base plate 60 is lower than the upper surface of the front edge portion by the thickness of the pressing plate 46 described above.

[0040] A wide groove-like recess 64 recessed from the upper surface is provided in the thick portion 63. As shown in Figures 15 and 16, a bottom surface 64a of this recess 64 slopes downward toward the rear edge of the base plate 60 (the edge on the left side in Figures 12 and 13).

[0041] 14 and 17, five partition walls 68 extending in the front-rear direction are provided on the bottom surface 64a of the recess 64, which define six hot water pipe engagement slits 67. The arrangement pitch of the slits 67 is the same as the arrangement pitch of the hot water pipes 14 extending from the base plate 11A.

[0042] As shown in FIG. 17, the base plate 60 is provided with screw insertion holes 69 for fastening the base plate 60 to the floor 4.

[0043] 18, the thick plate portion 63 is provided with a first rib 71 protruding rearward and second ribs 72 protruding laterally to the left and right. The first ribs 71 are disposed on both the left and right sides of the recess 64. A plurality of second ribs 72 are provided at intervals in the front-rear direction. The second ribs 72 extend in the up-down direction, and their upper ends are connected to the thin plate portion 61.

[0044] Providing the ribs 71, 72 in this manner increases the strength and rigidity of the thick portion 63 and the thin portion 61. This prevents the base plate 60 from being deformed or damaged when a load is applied to the base plate 60 from above. [Explanation of symbols]

[0045] 1,2 Main piping 3 floor hole 4 Beds 10. Floor heating panels 14 Hot water piping 20, 60 Base plate 21, 61 Thin plate part 23, 63 Thick plate section 24, 64 recess 24a, 64a Bottom of recess 27, 67 Slit 28, 68 Partition wall 30,40 Branch Header 31,41 Header body 32,42 Main pipe connection nozzle 33,43 Hot water pipe connection nozzle 46 Presser plate 71,72 Ribs

Claims

1. A floor heating panel installation structure in which multiple hot water pipes of a floor heating panel are connected to a main pipe under the floor via a branch header, As the branch headers, a forward branch header to which the forward main pipe and the forward hot water pipe are connected, and a return branch header to which the return main pipe and the return hot water pipe are connected are installed, A base plate is installed near a floor hole provided in the floor, and the hot water pipe is engaged with the base plate; In the floor heating panel installation structure, the branch header includes a header body, a main pipe connection portion protruding from the underside of the header body and connected to the main pipe, and a hot water pipe connection portion provided on the front surface of the header body and connected to the hot water pipe, The base plate is provided with a recess facing the front surface of the header body of the branch header, A floor heating panel installation structure, characterized in that at least the header body of the branch header is disposed within the floor hole rearward of the rear edge of the base plate.

2. 2. The floor heating panel installation structure according to claim 1, wherein the hot water pipe connection portion of one of the branch headers is recessed within the recess.

3. 3. The floor heating panel installation structure according to claim 2, wherein the hot water pipe connection portion of the other branch header is disposed above the header body of the one branch header.

4. A thick plate portion protruding downward is provided at a rear edge portion of the base plate, The recess is provided in the thick plate portion, 4. A floor heating panel installation structure according to any one of claims 1 to 3, wherein the thick plate portion is disposed within the floor hole.

5. 5. The floor heating panel installation structure according to claim 4, wherein the thick plate portion is provided with ribs.

6. a rear edge of the base plate covering a portion of the floor hole; 6. The floor heating panel installation structure according to claim 1, further comprising a pressing plate provided to cover the remaining portion of the floor hole.

7. 7. The floor heating panel installation structure according to claim 1, wherein the base plate is not present below the header body.

8. A method for installing a floor heating panel to construct the floor heating panel installation structure according to any one of claims 1 to 7, Pulling the main pipe out from under the floor through the floor hole onto the floor; a step of connecting a branch header connected to the hot water piping to the main piping; a step of placing the base plate under the hot water piping, returning the main piping under the floor, and placing at least the header body of the branch header in the floor hole behind the base plate; A method for installing a floor heating panel.

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