Slab structure for plumbing equipment installation part

Abstract

To provide a slab structure for a plumbing equipment installation part that enables installation of plumbing equipment without step slab installation or increasing floor height.SOLUTION: A slab structure for a plumbing equipment installation part comprises: a slab having a flat top surface; plumbing equipment disposed above the slab; a drain trap provided downstream of the plumbing equipment in a drainage direction and arranged underfloor; a siphon drainage pipe including a horizontal pipe provided downstream of the drain trap in the drainage direction, disposed on the slab and extending laterally, and a vertical pipe extending downward from a downstream end of the horizontal pipe; and a recess formed at a position corresponding to a drainage system including the drain trap in the slab, into which a lower part of the drain trap is inserted.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to a slab structure of a plumbing equipment installation area.

Background Art

[0002] As a slab structure of a plumbing equipment installation area, for example, a concrete floor slab structure described in Patent Document 1 is known.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In order to suppress the entrance step difference with the dressing room, a unit bath requires a "trap installation space for installing a drain trap and a space for ensuring a drainage gradient" (hereinafter referred to as a drainage space) in the slab, and is installed on a slab that is one step lower than a living room, a kitchen, etc. (hereinafter referred to as a stepped slab).

[0005] A washing machine also requires a drainage space similar to that of a unit bath, and it is common to install a drain trap in the same stepped slab as the unit bath.

[0006] However, such a stepped slab leads to an increase in construction costs and restrictions on the installation location of plumbing fixtures, and there is room for improvement.

[0007] In consideration of the above facts, an object of the present disclosure is to provide a slab structure of a plumbing equipment installation area that can install plumbing equipment without installing a stepped slab or increasing the floor height.

Means for Solving the Problems

[0008] The slab structure of the plumbing equipment installation section according to the first aspect includes a slab with a flat upper surface, plumbing equipment arranged above the slab, a drain trap provided on the downstream side in the drainage direction of the plumbing equipment and arranged under the floor, a horizontal drain pipe provided on the downstream side in the drainage direction of the drain trap, arranged on the slab and extending horizontally, and a vertical pipe extending downward from the downstream end of the horizontal drain pipe, and a siphon drain pipe composed of these, and a recess formed at a position corresponding to the drainage system including the drain trap of the slab, into which the lower part of the drain trap enters.

[0009] In the slab structure of the plumbing equipment installation section according to the first aspect, the drainage discharged from the plumbing equipment is discharged through the siphon drain pipe via the drain trap.

[0010] The horizontal drain pipe of the siphon drain pipe is arranged to extend horizontally on the slab and is not arranged inclined like a gradient pipe, so the vertical dimension of the space under the floor can be reduced compared to the case of arranging a gradient pipe, and the floor can be lowered compared to the case of arranging a gradient pipe.

[0011] In order to arrange a drain trap with a height higher than that of the horizontal drain pipe in the space under the floor for the purpose of arranging such a siphon drain pipe, conventionally, it was necessary to form a stepped slab with a step down and arrange the drain trap on the stepped slab.

[0012] In the slab structure of the plumbing equipment installation section according to the first aspect, since a recess into which a part of the drainage system including the drain trap enters is formed at a position corresponding to the drainage system including the drain trap of the slab, by inserting a part of the drainage system including the drain trap, in other words, the lower part, into the recess, the drainage system including the drain trap can be arranged under the floor without installing a stepped slab or raising the floor height.

[0013] In addition, since the concave portion is formed at a position corresponding to the drainage system including the drain trap, it does not take up a large space corresponding to the room where the plumbing equipment is installed like a stepped slab, simplifying the slab structure of the plumbing equipment installation section and facilitating the construction of the slab.

[0014] In the slab structure of the plumbing equipment installation section according to the second aspect, in the slab structure of the plumbing equipment installation section according to the first aspect, the exclusive area of the concave portion is less than the exclusive area of the plumbing equipment.

[0015] In the slab structure of the plumbing equipment installation section according to the second aspect, since the exclusive area of the concave portion on the slab is less than the exclusive area of the plumbing equipment, the area of the concave portion is smaller compared to the conventional stepped slab.

[0016] In the slab structure of the plumbing equipment installation section according to the third aspect, in the slab structure of the plumbing equipment installation section according to the first aspect or the second aspect, the drainage system includes a temporary storage tank provided between the drain trap and the horizontal drain pipe for temporarily storing the drainage discharged from the plumbing equipment, and a part of the temporary storage tank extends into the concave portion.

[0017] In the slab structure of the plumbing equipment installation section according to the third aspect, by allowing a part of the temporary storage tank to extend into the concave portion, it is possible to place the temporary storage tank, which is higher than the horizontal drain pipe, under the floor without installing a stepped slab or increasing the floor height.

[0018] In the slab structure of the plumbing equipment installation section according to the fourth aspect, in the slab structure of the plumbing equipment installation section corresponding to any one of the first aspect to the fourth aspect, a box-shaped reinforcing member with an open upper part is integrally provided on the inner surface of the concave portion.

[0019] In the slab structure of the plumbing equipment installation section according to the fourth aspect, since a box-shaped reinforcing member with an open upper part is integrally provided on the inner surface of the concave portion, the portion of the slab where the concave portion is formed can be reinforced.

Advantages of the Invention

[0020] As described above, according to the slab structure of the plumbing equipment installation part of the present disclosure, plumbing equipment can be installed without installing stepped slabs or increasing the floor height.

Brief Description of the Drawings

[0021]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Modes for Carrying Out the Invention

[0022] [First Embodiment] Using FIG. 1, the slab structure 10 of the plumbing equipment installation part according to the first embodiment of the present disclosure will be described.

[0023] In FIG. 1, the slab structure 10 of the plumbing equipment installation part according to an embodiment of the present disclosure applied to each floor of the building 12 is shown in a cross-sectional view.

[0024] On each floor of the building 12, a siphon drainage system 14 is provided to efficiently discharge the drainage from the plumbing fixtures by utilizing the siphon force.

[0025] The siphon drainage system 14 includes a siphon drainage pipe 16 composed of a horizontal draw pipe 16A and a vertical pipe 16B, and a drain trap 18, and is a drainage system that efficiently discharges the drainage from a bathroom 20 as an example of plumbing fixtures.

[0026] The slab 22 of the building 12 has a flat upper surface and is horizontal. In other words, the slab 22 of the present embodiment is a flat slab. Above the slab 22 of the building 12, a bathtub 28 is provided in the area constituting the bathroom 20. Note that a bathtub pan 44 is provided below the bathtub 28. In the present embodiment, the lower end of the bathtub pan 44 is spaced above the upper surface of the slab 22. The floor panel 26 of the washroom 24 is provided at a distance from the slab 22.

[0027] Above the slab 22 of the building 12, in the area constituting a dressing room 30 provided adjacent to the bathroom 20, a floor panel 32 is provided at a distance from the slab 22 and at the same height as the floor panel 26 of the washroom 24, or set 3 to 20 mm higher as an example.

[0028] A water-sealed drain trap 18 is provided in the floor panel 26 of the washroom 24. The drain trap 18 has an upper part opening in the floor panel 26 and is connected to the bathtub 28 by a drain pipe 34. The drain pipe 34 slopes downward toward the drain trap 18. That is, the drain pipe 34 is a sloped pipe with a gradient. Note that the drain pipe 34 may be horizontal. Note that the drain trap 18 and the drain pipe 34 are an example of the drainage system of the present disclosure.

[0029] As a result, the drain trap 18 is configured to receive the drainage on the floor panel 26 of the washroom 24 and the drainage from the bathtub 28. Note that this drain trap 18 has a general structure installed in the bathroom, and thus the description of its internal structure is omitted.

[0030] (Siphon drain pipe) The horizontal pipe 16A of the siphon drain pipe 16 is connected to the downstream side of the drain trap 18. The horizontal pipe 16A is horizontally arranged without slope on the slab 22.

[0031] The vertical pipe 16B is connected to the downstream side of the horizontal pipe 16A and is a pipe that generates siphon force by allowing the drainage from the horizontal pipe 16A to flow downwards, and extends downward (vertically downward).

[0032] In the building 12, a riser pipe 36 extending vertically is arranged. A junction joint 38 is attached to the riser pipe 36. The drainage flowed by the siphon drain pipe 16 is discharged into the riser pipe 36 through the junction joint 38.

[0033] The horizontal pipe 16A of the siphon drain pipe 16 is horizontally arranged without slope on the slab 22 and is not arranged in an inclined manner like a sloped pipe. Therefore, compared with the case of arranging a sloped pipe, the vertical dimension H of the space under the floor can be made smaller. For this reason, in the building 12 provided with the siphon drainage system 14, the floor panel 26 is lowered compared to the floor panel in the case of arranging a conventional sloped pipe.

[0034] (Recess) As shown in FIG. 1, since the vertical dimension h below the floor panel 26 of the drain trap 18 is larger than the dimension of the space under the floor (the distance between the lower surface of the floor panel 26 and the upper surface of the slab 22) H, in order to prevent the drain trap 18 from interfering with the slab 22 and the floor panel 26, recesses 40 are formed in the slab 22 at positions corresponding to the drain trap 18 and the drain pipe 34, in other words, at locations corresponding to the drain trap 18 and the drain pipe 34. Note that the area of the recess 40 when viewed in plan is less than the area of the bathroom 20 which is a water surrounding device when viewed in plan.

[0035] In order not to bring the lower end of the drain trap 18 and the lower end of the drain pipe 34 into contact with the bottom 40A of the recess 40, the distance h1 between the lower end of the drain trap 18 and the lower end of the drain pipe 34 and the bottom 40A of the recess 40 can be, for example, 10 mm or more and 20 mm or less. Here, the relationship between the depth D of the recess 40, the vertical dimension h below the floor panel 26 of the drain trap 18, and the dimension H of the space under the floor is H + D > h > H. Note that the depth D of the recess 40 is set to the minimum dimension at which the drain trap 18 and the drain pipe 34 do not interfere with the slab 22 and the floor panel 26. If the recess 40 is made deeper than necessary, the slab 22 will become too thin in part, which is not preferable.

[0036] (Function, Effect) Next, the function and effect of the slab structure 10 of the water surrounding device installation part of the present embodiment will be described.

[0037] In the slab structure 10 of the water surrounding device installation part according to the present embodiment, a recess 40 into which a part of the lower part of the drain trap 18 and a part of the drain pipe 34 (in other words, the lower part) enter is formed at a position corresponding to the drain trap 18 and the drain pipe 34 of the slab 22. By allowing a part of the drain trap 18 and a part of the drain pipe 34 to enter the recess 40, the drain trap 18 and the drain pipe 34 can be arranged under the floor panel 26. Also, since the height of the bathtub 28 and the washbasin 24 is not increased, as a result, the floor height is not increased.

[0038] In order not to bring the lower end of the drain trap 18 and the lower end of the drain pipe 34 into contact with the bottom 40A of the recess, the distance h1 between the lower end of the drain trap 18 and the lower end of the drain pipe 34 and the bottom of the recess 40 can be, for example, 10 mm or more and 20 mm or less.

[0039] In addition, since the recess 40 may be formed at positions corresponding to the drain trap 18 and the drain pipe 34, it does not take up a large space corresponding to the room (such as a bathroom or a dressing room) where the plumbing fixtures are arranged, unlike a conventional stepped slab. Therefore, the slab structure 10 of the plumbing fixture installation part of the present embodiment has a simpler structure compared to the stepped slab, and the construction of the slab 22 becomes easier.

[0040] When viewed in plan, the area of the conventional stepped slab is set to be larger than the area when the plumbing fixtures (the bathroom 20 in the present embodiment) are viewed in plan. However, it is characteristic that the area of the recess 40 in the present embodiment is set to be less than the area when the bathroom 20, which is an example of the plumbing fixtures, is viewed in plan.

[0041] Note that the recess 40 only needs to be formed in the slab 22 at positions corresponding to the drain trap 18 and the drain pipe 34. The area of the recess 40 when viewed in plan may be equal to or larger than the area when the drain trap 18 and the drain pipe 34 are viewed in plan, but there is no need to make it larger than necessary. As an example, the area of the recess 40 when viewed in plan can be set to be 2 times or less, preferably 1.5 times or less, and more preferably 1.2 times or less the area when the drain trap 18 and the drain pipe 34 are viewed in plan.

[0042] [Second Embodiment] Next, the slab structure 10 of the plumbing fixture installation part according to the second embodiment of the present disclosure will be described with reference to FIG. 2. The same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

[0043] As shown in FIG. 2, in the slab 22 of the present embodiment, inside the recess 40, a box-shaped reinforcing member 42 with an open top is integrally provided on the inner surface of the recess 40. Note that the box-shaped reinforcing member 42 can also be called a nested member. When the box-shaped reinforcing member 42 is provided inside the recess 40, as shown in FIG. 2, the above-mentioned depth D is the depth from the surface of the slab 22 to the bottom of the box-shaped reinforcing member 42, and the above-mentioned interval h1 is the interval between the lower end of the drain trap 18 and the lower end of the drain pipe 34 and the bottom of the box-shaped reinforcing member 42. Other dimensional relationships are the same as those in the first embodiment.

[0044] The box-shaped reinforcing member 42 of the present embodiment is formed of a metal plate such as a steel plate or a material with higher strength than concrete as an example, and is integrated with the concrete of the slab 22. To integrate the box-shaped reinforcing member 42 with the slab 22, the box-shaped reinforcing member 42 may be embedded in the concrete when the concrete is placed to form the slab 22. By integrally providing a metal box-shaped reinforcing member 42 with an open top inside the recess 40, the portion of the slab 22 where the recess 40 is formed can be reinforced. Also, in the unlikely event that water leaks from the drain trap 18 or the like, the box-shaped reinforcing member 42 can receive the leaked water.

[0045] [Third Embodiment] Next, the slab structure 10 of the plumbing fixture installation portion according to the third embodiment of the present disclosure will be described with reference to FIG. 3. The same components as those in the above-described embodiments are denoted by the same reference numerals, and the description thereof is omitted.

[0046] The slab structure 10 of the plumbing fixture installation portion shown in FIG. 3 is such that the recess 40 extends below the bathtub pan 44 provided below the bathtub 28.

[0047] As shown in FIG. 4, the box-shaped reinforcing member 42 may be integrated with the recess 40 of the present embodiment.

[0048] [Fourth Embodiment] Next, the slab structure 10 of the plumbing equipment installation section according to the fourth embodiment of the present disclosure will be described with reference to FIG. 5. The same components as those in the above-described embodiments are denoted by the same reference numerals, and the description thereof will be omitted.

[0049] In the siphon drainage system 14 of the present embodiment, a temporary storage tank 46 for temporarily storing the drainage discharged from the bathtub 28 is provided between the drainage trap 18 and the horizontal drain pipe 16A.

[0050] The drainage trap 18 and the temporary storage tank 46 are connected by a gradient pipe 48 that is inclined so that the temporary storage tank side is lower than the drainage trap side.

[0051] In the slab 22 of the present embodiment, the recess 40 extends toward the temporary storage tank 46, and the recess 40 is formed at positions corresponding to the drain pipe 34, the drainage trap 18, the gradient pipe 48, and the temporary storage tank 46. Note that the gradient pipe 48 and the temporary storage tank 46 are an example of the drainage system of the present disclosure.

[0052] In the present embodiment, the temporary storage tank 46 is disposed under the floor panel 32 of the dressing room 30, but it may be disposed under the floor panel 26 of the washing area 24.

[0053] In the present embodiment, the relationship between the height h2 of the temporary storage tank 46, the dimension H of the underfloor space, and the depth D of the recess 40 is set such that H + D > h2 > H so that the temporary storage tank 46 does not interfere with the slab 22. In the slab structure 10 of the plumbing equipment installation section of the present embodiment, by inserting a part of the temporary storage tank 46 into the recess 40, the temporary storage tank 46 can be disposed under the floor panel 26 without installing a stepped slab. Further, the temporary storage tank 46, which is higher than the horizontal drain pipe 16A, can be disposed under the floor without increasing the height of the bathtub 28 or the washing area 24 and, as a result, without increasing the floor height.

[0054] As shown in FIG. 6, a box-shaped reinforcing member 42 may be integrated with the recess 40 of the present embodiment.

[0055] [Fifth Embodiment] Next, the slab structure 10 of the plumbing fixture installation section according to the fifth embodiment of the present disclosure will be described with reference to FIG. 7. The same components as those in the above-described embodiments are denoted by the same reference numerals, and the description thereof will be omitted.

[0056] As shown in FIG. 7, in the slab structure 10 of the plumbing fixture installation section of the present embodiment, the recess 40 extends from the bathtub pan 44 of the bathtub 28 to the temporary storage tank 46, and the recess 40 is formed at positions corresponding to the bathtub pan 44, the drain pipe 34, the drain trap 18, the gradient pipe 48, and the temporary storage tank 46.

[0057] Note that, as shown in FIG. 8, a box-shaped reinforcing member 42 may be integrated with the recess 40 of the present embodiment.

[0058] [Other Embodiments] Although one embodiment of the present disclosure has been described above, the present disclosure is not limited to the above, and it goes without saying that various modifications can be made without departing from the gist thereof.

[0059] In the above embodiment, the bathroom 20 was an example of the plumbing fixture, but the plumbing fixture is not limited to the bathroom 20, and the plumbing fixture may be, for example, a waterproof pan of a washing machine, a shower room, etc., in which a drain trap is provided under the floor. [Description of Reference Numerals]

[0060] 10... Slab structure of plumbing fixture installation section, 16... Siphon drain pipe, 16A... Horizontal pipe, 16B... Vertical pipe, 18... Drain trap (drainage system), 20... Bathroom (plumbing fixture), 34... Drain pipe (drainage system), 36... Temporary storage tank (drainage system), 40... Recess, 42... Box-shaped reinforcing member

Claims

1. A slab with a flat upper surface, Plumbing equipment arranged above the slab, A drain trap provided on the downstream side in the drainage direction of the plumbing equipment and arranged under the floor, A siphon drain pipe including a horizontal draw pipe provided on the downstream side in the drainage direction of the drain trap, arranged on the slab and extending horizontally, and a vertical pipe extending downward from the downstream end of the horizontal draw pipe, A recess formed at a position corresponding to the drainage system including the drain trap in the slab, into which the lower part of the drain trap enters, having A slab structure of a plumbing equipment installation part.

2. The area of the recess when viewed in plan is less than the area of the plumbing equipment when viewed in plan, The slab structure of the plumbing equipment installation part according to Claim 1.

3. The drainage system includes a temporary storage tank provided between the drain trap and the horizontal draw pipe for temporarily storing the drainage discharged from the plumbing equipment, The lower part of the temporary storage tank enters the recess, The slab structure of the plumbing equipment installation part according to Claim 1.

4. A box-shaped reinforcing member with an open upper part is integrally provided on the inner surface of the recess, The slab structure of the plumbing equipment installation part according to any one of Claims 1 to 3.

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