Toilet same-floor drainage prefabricated floor slab and building structure thereof

Abstract

The utility model discloses a same-floor drainage prefabricated floor slab for a toilet and a building structure of the same-floor drainage prefabricated floor slab. The prefabricated floor slab comprises a foundation floor slab and a sinking floor slab which are integrally poured, the projection outline of the foundation floor slab is larger than that of the sinking floor slab, a sinking groove is jointly formed between the foundation floor slab and the sinking floor slab, node steel bars are arranged on the side portion of the foundation floor slab, and a floor penetrating drainage pipe is integrally poured on the sinking floor slab. The building structure comprises an existing floor slab and further comprises the prefabricated floor slab, the existing floor slab is connected with node steel bars of the foundation floor slab in a pouring mode, drainage pipes on the same layer are arranged in the sinking groove, the drainage pipes on the same layer are horizontally arranged and communicated with the floor penetrating drainage pipes, and a backfill composite layer is constructed in the sinking groove. The prefabricated floor slab has the advantages that the sinking grooves of the prefabricated floor slab are used for arranging drainage pipes on the same floor, a drainage system for drainage on the same floor is achieved, property rights between an upper owner and a lower owner are distinguished, hidden danger of water leakage caused by node gaps is reduced, and meanwhile the owners can conveniently transform toilets during follow-up decoration.

Description

Technical Field

[0001] The utility model belongs to an assembled building prefabricated component, and in particular relates to a same-floor drainage prefabricated floor slab for a bathroom and a building structure thereof. Background Art

[0002] Bathroom waterproofing is a key and difficult issue in construction. With the development of prefabricated buildings, bathroom prefabricated floors are increasingly considering waterproofing. Currently, bathroom prefabricated floors are similar to other floor structures, only prefabricated reinforced concrete structures, with different layers of drainage, resulting in unclear property rights, prone to waterproofing risks, and limited bathroom layout. Utility Model Content

[0003] The utility model aims to provide a prefabricated floor slab for same-floor drainage of a bathroom and a building structure thereof, thereby solving the problem of different-floor drainage.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A prefabricated floor slab for same-floor drainage in a bathroom comprises a foundation slab and a sunken slab cast integrally with the foundation slab, wherein the foundation slab is located on the upper part of the sunken slab, the projection outline of the foundation slab is larger than the projection outline of the sunken slab, a sunken trough is formed between the foundation slab and the sunken slab, protruding node steel bars are provided on the side of the foundation slab, and a through-layer drainage pipe that passes through from top to bottom is cast integrally on the sunken slab.

[0006] Furthermore, the foundation floor slab has a rectangular projection outline.

[0007] Furthermore, the four sides of the foundation slab are provided with protruding node steel bars.

[0008] Furthermore, the sunken floor slab has a rectangular projection outline.

[0009] Furthermore, the sunken floor slab is located at the center of the foundation floor slab.

[0010] Furthermore, the sinking groove has a rectangular projection outline.

[0011] Furthermore, the sinking trough is located at the center of the foundation slab and the sunken slab.

[0012] A building structure of a prefabricated floor slab with same-layer drainage for a bathroom, comprising an existing floor slab and the above-mentioned prefabricated floor slab with same-layer drainage for a bathroom, wherein the node steel bars of the existing floor slab and the foundation slab are cast and connected, a same-layer drainage pipe is arranged in a sinking trough, the same-layer drainage pipe is arranged horizontally and connected with the through-layer drainage pipe, and a backfill composite layer is constructed in the sinking trough.

[0013] Furthermore, the backfill composite layer includes a first waterproof coating, a filling layer, an insulation layer, a supporting structure layer, a second waterproof coating and a covering protective layer arranged layer by layer from bottom to top, and the first waterproof coating is also arranged on the side wall of the sinking trough.

[0014] Furthermore, the first waterproof coating and the second waterproof coating are polyurethane waterproof coatings, the filling layer is a cement slag filling layer, the insulation layer is an extruded insulation board, the supporting structure layer is a fine stone concrete structure layer, and the upper, middle and lower parts of the fine stone concrete structure layer are respectively provided with wire mesh, heat dissipation pipes and wire mesh, and the covering protective layer is a dry hard cement mortar protective layer.

[0015] Beneficial effects of the utility model:

[0016] (1) The sunken trough of the prefabricated floor is used to arrange drainage pipes on the same floor, realize the drainage system of the same floor, distinguish the property rights between the upper and lower owners, and facilitate the division of responsibilities in case of water leakage.

[0017] (2) The prefabricated floor slab is cast in one piece to reduce the risk of water leakage caused by the gaps between the nodes. A waterproof layer is subsequently applied to further protect the waterproof effect of the sinking trough and the nodes.

[0018] (3) The drainage pipes on the same floor are arranged on this floor, which makes it convenient for the owner to renovate the bathroom during subsequent renovation without being restricted by the freedom of traditional multiple drainage pipes.

[0019] The aforementioned main scheme of the utility model and its further options can be freely combined to form multiple schemes, all of which are schemes that can be adopted and protected by the utility model; and in the utility model, (non-conflicting options) options and other options can also be freely combined. After understanding this scheme, those skilled in the art can understand that there are many combinations based on the existing technology and common knowledge, all of which are technical schemes to be protected by the utility model, and they are not exhaustively listed here. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural front view of the prefabricated floor slab of the utility model.

[0021] Figure 2 It is a structural top view of the prefabricated floor slab of the utility model.

[0022] Figure 3 This is the main structural view of the new building structure.

[0023] In the figure: 1-foundation slab, 2-sunken slab, 3-sunken trough, 4-node steel bars, 6-through-layer drainage pipe, 7-same-layer drainage pipe, 8-backfill composite layer, 802-first waterproof coating, 803-filling layer, 804-insulation layer, 805-supporting structure layer, 806-second waterproof coating, 807-covering protective layer. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with specific embodiments and drawings.

[0025] Example 1

[0026] refer to Figure 1 and Figure 2 As shown, a prefabricated floor slab for same-level drainage in a bathroom includes a basic floor slab 1, a sunken floor slab 2, a sunken trough 3, node steel bars 4 and a through-layer drainage pipe 6.

[0027] The foundation slab 1 has a rectangular projection outline, that is, the foundation slab 1 is a rectangular plate body. The sunken slab 2 has a rectangular projection outline, that is, the sunken slab 2 is also a rectangular plate body. The foundation slab 1 and the sunken slab 2 are cast in one piece to form a prefabricated reinforced concrete structure.

[0028] The four sides of the foundation slab 1 are provided with extended node steel bars 4, which are used to connect the existing slab (which can be cast-in-place or prefabricated) with the foundation slab 1. The steel bars at the nodes are tied and concrete is poured to achieve assembly and fixation between the prefabricated components.

[0029] The foundation floor 1 is located on the upper part of the sunken floor 2. The projection outline of the foundation floor 1 is larger than the projection outline of the sunken floor 2. The sunken floor 2 is located at the center of the foundation floor 1, so that a stepped floor structure with a larger top and a smaller bottom is formed between the foundation floor 1 and the sunken floor 2, providing space for the opening of the sinking trough.

[0030] A sinking trough 3 is formed between the foundation slab 1 and the sunken slab 2. The sinking trough 3 is a rectangular projection outline, and the sinking trough 3 is located at the center of the foundation slab 1 and the sunken slab 2. The sinking trough 3 provides space for the arrangement of the drainage pipe 7 on the same floor. The prefabricated floor realizes the water supply system for drainage on the same floor, which is convenient for the division of rights and responsibilities between owners, and also convenient for owners to flexibly design and arrange the drainage layout of bathrooms and other houses.

[0031] A through-layer drainage pipe 6 penetrating from top to bottom is integrally cast on the sunken floor 2. The through-layer drainage pipe 6 is integrally cast when the floor is cast, thereby ensuring a waterproof and sealing effect at the connection node.

[0032] Example 2

[0033] refer to Figure 3 As shown, a building structure of a prefabricated floor slab with same-level drainage for toilets includes an existing floor slab (which can be cast-in-place or prefabricated) and the prefabricated floor slab with same-level drainage for toilets of Example 1.

[0034] The extended steel bars of the existing floor slab are tied and connected with the node steel bars 4 of the foundation floor slab 1, and the concrete is poured to fix the connection as a whole, so as to realize the assembly and forming of the existing floor slab and the prefabricated floor slab. The sinking trough 3 is provided with drainage pipes 7 on the same floor, and the sinking trough 3 provides a layout space for the drainage pipes 7 on the same floor, and all drainage pipes on the floor are uniformly led to the position, which is convenient for pipeline laying, reduces the layout of drainage pipes through the layers, and improves the overall waterproof effect.

[0035] The same-floor drainage pipe 7 is arranged horizontally and connected to the through-floor drainage pipe 6, and all drainage of the floor is collected to the through-floor drainage pipe 6 and discharged downward. Since the same-floor drainage pipe 7 is located on this floor, the owner can design the location of the bathroom or other drainage furniture according to his own needs and adjust the number and location of the pipes relatively. Waterproofing is also required between the through-floor drainage pipe 6 and the sunken floor 2 to ensure the sealing of the gap.

[0036] A backfill composite layer 8 is applied in the sinking trough 3, and the backfill composite layer 8 is mainly used to backfill the sinking trough 3, so that the final composite layer height is the same as the floor height to ensure the flatness of the ground. At the same time, the backfill composite layer 8 also has the functions of waterproofing, supporting, and heat preservation.

[0037] The backfill composite layer 8 includes a first waterproof coating 802, a filling layer 803, an insulation layer 804, a supporting structure layer 805, a second waterproof coating 806 and a covering protective layer 807 arranged layer by layer from bottom to top. The first waterproof coating 802 is also arranged on the side wall of the sinking trough 3 to ensure waterproof barrier between the bottom and the wall of the sinking trough 3 to avoid leakage.

[0038] The first waterproof coating 802 and the second waterproof coating 806 are 1.5 mm thick polyurethane waterproof coatings, the filling layer 803 is a 1:6 cement slag filling layer, the insulation layer 804 is an extruded insulation board, the supporting structure layer 805 is a C20 fine stone concrete structure layer, and the upper, middle and lower parts of the fine stone concrete structure layer are respectively provided with wire mesh, heat dissipation pipes and wire mesh, and the covering protective layer 807 is a 1:3 dry hard cement mortar protective layer.

[0039] The workflow of this utility model:

[0040] The first step is to place the prefabricated floor slab at a predetermined location.

[0041] The second step is to overlap and tie the node steel bars reserved for the prefabricated floor slabs with the floor slab steel bars.

[0042] The third step is to support the formwork at the bottom of the overlapped parts of the prefabricated floor slab nodes.

[0043] Step 4: Pour concrete into the nodes and maintain them.

[0044] Step 5: After the formwork is removed, the prefabricated floor slab forms a whole with the existing floor slab.

[0045] Step 6. Freely arrange horizontal drainage branches and points according to the owner's needs.

[0046] Step 7: Backfill the lowered plate area at the sinking trough. Backfilling steps: Make the base smooth; apply 1.5mm thick polyurethane waterproof coating on the top; use 1:6 cement slag filling on the top; lay extruded insulation board; fill with C20 fine stone concrete (with steel mesh on the top, heat pipe in the middle, and steel mesh on the bottom); 1.5mm thick polyurethane waterproof coating; 1:3 dry hard cement mortar surface leveling.

[0047] The above basic examples and further optional examples of the utility model can be freely combined to form multiple embodiments, which are all embodiments that can be adopted and claimed for protection by the utility model. In the scheme of the utility model, each optional example can be arbitrarily combined with any other basic examples and optional examples.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A prefabricated floor slab for drainage on the same floor of a bathroom, comprising a basic floor slab (1), characterized in that: The invention also comprises a sunken floor slab (2) cast integrally with the foundation floor slab (1), wherein the foundation floor slab (1) is located at the upper part of the sunken floor slab (2), the projection outline of the foundation floor slab (1) is larger than the projection outline of the sunken floor slab (2), a sunken trough (3) is formed between the foundation floor slab (1) and the sunken floor slab (2), a side of the foundation floor slab (1) is provided with an outwardly extending node steel bar (4), and a through-layer drainage pipe (6) is cast integrally on the sunken floor slab (2) and passes through from top to bottom.

2. The prefabricated floor slab for drainage on the same floor of the bathroom according to claim 1, characterized in that: The basic floor slab (1) has a rectangular projection profile.

3. The prefabricated floor slab for drainage on the same floor of the bathroom according to claim 1 or 2, characterized in that: The four sides of the foundation floor slab (1) are all provided with outwardly extending node steel bars (4).

4. The prefabricated floor slab for drainage on the same floor of the bathroom according to claim 1 or 2, characterized in that: The sunken floor slab (2) has a rectangular projection outline.

5. The prefabricated floor slab for drainage on the same floor of the bathroom according to claim 1 is characterized by: The sunken floor slab (2) is located at the center of the basic floor slab (1).

6. The prefabricated floor slab for drainage on the same floor of the bathroom according to claim 1, characterized in that: The sinking groove (3) is a rectangular projection outline.

7. The prefabricated floor slab for drainage on the same floor of the bathroom according to claim 1 or 6, characterized in that: The sinking trough (3) is located at the center of the foundation floor (1) and the sinking floor (2).

8. A building structure of a prefabricated floor slab for drainage on the same floor of a bathroom, comprising an existing floor slab, characterized in that: It also includes the prefabricated floor slab for same-layer drainage of the bathroom as described in any one of claims 1 to 7, wherein the node steel bars (4) of the existing floor slab and the foundation floor slab (1) are cast and connected, a same-layer drainage pipe (7) is arranged in the sinking trough (3), the same-layer drainage pipe (7) is arranged horizontally and connected to the through-layer drainage pipe (6), and a backfill composite layer (8) is applied in the sinking trough (3).

9. The architectural structure of the prefabricated floor slab for drainage on the same floor of the bathroom according to claim 8, characterized in that: The backfill composite layer (8) includes a first waterproof coating (802), a filling layer (803), an insulation layer (804), a supporting structure layer (805), a second waterproof coating (806) and a covering protective layer (807) arranged layer by layer from bottom to top, and the first waterproof coating (802) is also arranged on the side wall of the sinking trough (3).

10. The architectural structure of the prefabricated floor slab for drainage on the same floor of the bathroom according to claim 9, characterized in that: The first waterproof coating (802) and the second waterproof coating (806) are polyurethane waterproof coatings, the filling layer (803) is a cement slag filling layer, the insulation layer (804) is an extruded insulation board, the supporting structure layer (805) is a fine stone concrete structure layer, the upper, middle and lower parts of the fine stone concrete structure layer are respectively provided with steel wire mesh, heat dissipation pipes and steel wire mesh, and the covering protective layer (807) is a dry hard cement mortar protective layer.

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