Waterproof structure of sink and floor drain and its construction method
By setting a grouting layer and a waterproof layer in the sink floor drain and combining it with an isolation layer, the leakage problem of the sink floor drain is solved, and effective water discharge and waterproofing effects are achieved.
Patent Information
- Application Number
- CN202211731668.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-12-30
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2042-12-30
AI Technical Summary
In the prior art, water accumulated on the ground may seep into the filling layer through the gap between the concrete layer and the finished water tank, increasing the risk of leakage.
A first reserved hole and a second reserved hole are arranged vertically, and a grouting layer and a waterproof layer are provided in the embedded pipe. Combined with the isolation layer, the grouting layer and the waterproof layer reduce the risk of water leakage, and the isolation layer guides the water into the embedded pipe for discharge.
It effectively reduces the risk of water seeping into the filling layer from the gaps, prevents the formation of water accumulation, ensures the waterproof performance of the sink floor drain, and avoids the filler clogging the embedded pipe.
Smart Images
Figure CN115961689B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the field of building construction, and in particular relates to a water tank floor drain waterproof structure and a construction method thereof. Background Art
[0002] In the prior art, such as Figure 1 As shown, when constructing a finished kitchen mesh sink, a drainage hole is usually reserved on the floor 1, and a brick layer 3 is laid on the floor 1 to form the ground. A reserved hole is left in the middle of the brick layer 3 for installing the finished sink 2. After the purchased finished sink 2 is inserted into the drainage hole and connected to the drainage hole, mortar is backfilled in the reserved hole to form a filling layer 4. The finished sink 2 is fixed by the filling layer 4, and the gaps around the finished sink 2 are sealed. Then, a concrete layer 5 is poured on the brick layer 3 and the filling layer 4 to form the kitchen floor. The floor can be glued to the top of the concrete layer 5 according to actual needs. In actual use, accumulated water on the ground may penetrate into the filling layer 4 through the gap between the concrete layer 5 and the finished sink 2, forming accumulated water in the filling layer 4, increasing the risk of leakage. Summary of the Invention
[0003] In response to the deficiencies in the prior art, the present invention provides a water tank floor drain waterproof structure and a construction method thereof to solve the problem that accumulated water on the ground may seep into the filling layer through the gap between the concrete layer and the finished water tank, forming accumulated water in the filling layer and increasing the risk of leakage.
[0004] To achieve the above object, the present invention adopts the following technical solutions:
[0005] The water tank floor drain waterproof structure comprises a first reserved hole and a second reserved hole which are arranged vertically and coaxially, the first reserved hole is located above the second reserved hole, and the inner diameter of the first reserved hole is larger than the inner diameter of the second reserved hole, a pre-buried pipe is pre-buried in the second reserved hole, the upper end of the pre-buried pipe is located at a height lower than the upper end of the second reserved hole, a grouting layer is provided in the second reserved hole, the grouting layer comprises a fixing portion arranged between the outer wall of the pre-buried pipe and the inner wall of the second reserved hole, and a slope portion arranged between the upper end of the pre-buried pipe and the upper end of the second reserved hole, the inner wall of the slope portion is truncated cone-shaped and the upper end is It is the large diameter end; it also includes a waterproof layer, the lower end of the waterproof layer is located on the inner wall of the embedded pipe, and the upper end of the waterproof layer passes through the inner wall of the slope portion and the inner wall of the first reserved hole and is laid flat on the ground at the upper end of the first reserved hole; the inner wall of the slope portion is provided with an isolation layer, the isolation layer includes a filter plate and a non-woven fabric laid flat on the filter plate, and a mounting hole for installing a water supply trough is opened in the middle of the filter plate, and the non-woven fabric is used to fill the space between the water trough and the inner wall of the slope portion; the inner wall of the first reserved hole is cast with a filling layer for fixing the water trough, and the upper end of the filling layer and the ground at the upper end of the first reserved hole are cast with a concrete layer.
[0006] Compared with the prior art, the present invention has the following beneficial effects:
[0007] 1. The embedded pipe is fixed in the second reserved hole through the grouting layer. The grouting layer is provided with a slope to facilitate the flow of accumulated water into the embedded pipe for discharge. The provision of the waterproof layer reduces the water that circumferentially penetrates into the first and second reserved holes. The lower end of the waterproof layer extends to the inner wall of the embedded pipe, providing a sealing and waterproofing effect on the upper end of the embedded pipe, reducing the risk of water seeping into the grouting layer through the gap between the embedded pipe and the grouting layer.
[0008] 2. The inner wall of the embedded pipe and the outer wall of the water tank do not touch each other, but are connected by an isolation layer. Water that seeps through the filling layer between the water tank and the inner wall of the first reserved hole can flow downward into the embedded pipe through the isolation layer and be discharged, without being retained in the filling layer and forming water accumulation. The provision of the isolation layer can also prevent filler from entering the embedded pipe and clogging it when pouring the filling layer.
[0009] To achieve the above object, the present invention also adopts the following technical solutions:
[0010] The construction method of the water tank floor drain waterproof structure includes the following steps:
[0011] S1. Open a second reserved hole on the floor slab, clean the floor slab surface and the inner wall of the second reserved hole;
[0012] S2, laying brick layers around the second reserved hole to form the first reserved hole, with the upper end of the brick layers forming the ground, and plastering the inner wall of the first reserved hole;
[0013] S3. Install the embedded pipe in the second reserved hole and pour fine stone concrete or non-shrinkage high-strength grouting material to form a grouting layer;
[0014] S4. Bonding a polyester waterproof cloth to form a waterproof layer, wherein the lower end of the polyester waterproof cloth is bonded to the inner wall of the embedded pipe, and the polyester waterproof cloth is bonded sequentially through the inner wall of the slope leveling layer and the inner wall of the first reserved hole, and then laid flat on the upper end of the brick layer;
[0015] S5. Fix the filter plate on the side wall of the purchased finished water tank, and bond non-woven fabric to the upper end of the filter plate to form an isolation layer. Place the finished water tank into the first reserved hole, insert the lower end of the finished water tank into the embedded pipe, and make the side wall of the second water stop and the inner wall of the slope layer abut against each other.
[0016] S6. Pour mortar into the first reserved hole to form a filling layer, and pour the mortar until it is flush with the upper end of the brick layer;
[0017] S7. Pour a concrete layer on the ground above the brick layer. The inner side of the concrete layer is against the outer wall of the finished water tank. After the concrete layer solidifies, apply waterproof coating on the top of the concrete layer. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1It is a schematic diagram of the overall structure of the background technology of the present invention.
[0019] Figure 2 Schematic diagram of the overall structure of an embodiment of the present invention.
[0020] Figure 3 Schematic diagram of the overall installation structure of the isolation layer in an embodiment of the present invention.
[0021] In the figure: 1. Floor slab; 2. Gutter; 3. Brick layer; 4. Filling layer; 5. Concrete layer; 6. Waterproof coating; 7. Waterproof layer; 8. Grouting layer; 9. Isolation layer; 10. Embedded pipe; 11. Wire mesh; 12. Mounting hole; 13. Second water stop; 14. First water stop; 15. Limiting ring; 16. Non-woven fabric; 17. Filter plate. DETAILED DESCRIPTION
[0022] The present invention will be further described in detail below with reference to the accompanying drawings, and specific implementation methods will be given.
[0023] like Figure 2 As shown, the water tank floor drain waterproof structure includes a first reserved hole and a second reserved hole arranged vertically and coaxially. In the actual design process, the second reserved hole is opened on the floor slab 1, and the first reserved hole is formed by surrounding the brick layer 3 built on the floor slab 1. The first reserved hole is located above the second reserved hole, and the inner diameter of the first reserved hole is larger than the inner diameter of the second reserved hole.
[0024] A pre-buried pipe 10 is embedded in the second reserved hole. The pre-buried pipe 10 includes a large diameter portion, a reducing portion, and a small diameter portion connected in sequence from top to bottom. The reducing portion is truncated cone-shaped. The upper end of the reducing portion is the large diameter end and is connected to the large diameter portion. The lower end of the reducing portion is the small diameter end and is connected to the small diameter portion. The upper end of the pre-buried pipe 10 is located at a lower height than the upper end of the second reserved hole. A grouting layer 8 is provided in the second reserved hole. The grouting layer 8 includes a fixing portion provided between the outer wall of the pre-buried pipe 10 and the inner wall of the second reserved hole, and a slope portion provided between the upper end of the pre-buried pipe 10 and the upper end of the second reserved hole. The inner wall of the slope portion is truncated cone-shaped and the upper end is the large diameter end. Through the provision of the slope portion, water entering the second reserved hole can flow into the pre-buried pipe 10 along the slope portion. In the actual design process, the grouting layer 8 is formed by fine stone concrete or non-shrinkage high-strength grouting material poured into the second reserved hole.
[0025] A waterproof layer 7 is bonded inside the embedded pipe 10. Specifically, the waterproof layer 7 is made of polyester waterproof cloth. The lower end of the waterproof layer 7 is bonded to the inner wall of the embedded pipe 10, and the upper end of the waterproof layer 7 is laid flat on the ground at the upper end of the first reserved hole after passing through the inner wall of the slope portion and the inner wall of the first reserved hole, that is, the upper end of the waterproof layer 7 is bonded to the ground formed by the brick layer 3. Through the provision of the waterproof layer 7, the water circumferentially penetrating into the first reserved hole and the second reserved hole is reduced, and the lower end of the waterproof layer 7 extends to the inner wall of the embedded pipe 10, which has a sealing and waterproof effect on the upper end of the embedded pipe 10, reducing the risk of water penetrating into the grouting layer 8 from the gap between the embedded pipe 10 and the grouting layer 8.
[0026] An isolation layer 9 is fixed on the inner wall of the slope leveling part. Figure 3 As shown, the isolation layer 9 includes a filter plate 17, a non-woven fabric 16 laid flat on the filter plate 17, and a second water stop 13 fixed to the end of the filter plate 17. The second water stop 13 is annular, and a mounting hole 12 for the water tank 2 is provided in the middle of the filter plate 17. The non-woven fabric 16 is used to fill the space between the water tank 2 and the inner wall of the slope portion. By setting the second water stop 13, the second water stop 13 is bonded to the inner wall of the slope portion, and the non-woven fabric 16 fills the space between the water tank 2 and the second water stop 13. The non-woven fabric 16 is provided in multiple layers and fixed to the upper end of the filter plate 17 layer by layer. The large diameter portion at the upper end of the embedded pipe 10 facilitates the insertion of the finished water tank 2 and does not contact the finished water tank 2, so that water can be discharged into the embedded pipe 10 through the isolation layer, while the small diameter portion at the lower end of the embedded pipe 10 meets the drainage requirements of the embedded pipe 10 and the sewer.
[0027] In actual use, the filter plate 17 is fixed to the outer wall of the purchased finished water tank 2 by bonding or welding as is conventionally done, and then the finished water tank 2 and the isolation layer 9 are simultaneously installed in the second reserved hole. Specifically, a limit ring 15 is fixed to the inner wall of the embedded pipe 10. The inner diameter of the limit ring 15 is larger than the inner diameter of the mounting hole 12. In actual design, the inner diameter of the limit ring 15 is equal to or slightly larger than the inner diameter of the lower end of the second water stop 13 to prevent the limit ring 15 from affecting drainage.
[0028] A first annular water stop strip 14 is fixed to the lower end of the filter plate 17, and an annular groove is provided at the upper end of the limiting ring 15 for the first water stop strip 14 to be inserted into. The limiting ring 15 supports the filter plate 17, and the cooperation between the first water stop strip 14 and the annular groove has a certain limiting effect on the filter plate 17, thereby preventing the isolation layer 9 from moving downward when the filling layer 4 is subsequently poured. The first water stop strip 14 and the second water stop strip 13 are both PN water stop strips that swell when exposed to water in the prior art. Water that penetrates into the isolation layer can cause the second water stop strip 13 to expand, thereby better squeezing the non-woven fabric 16 to fill the space there. After the first water stop strip 14 expands, the filter plate 17 can be more stably fixed to the limiting ring 15. A ring-shaped steel wire mesh 11 is provided at the bottom of the inner wall of the first reserved hole. The lower end of the steel wire mesh 11 is against the non-woven fabric 16. The upper end of the non-woven fabric 16 is pressed and limited by the steel wire mesh 11 to facilitate the subsequent pouring of the filling layer 4 and avoid the pressure during the pouring of the filling layer 4 causing the non-woven fabric 16 to shift.
[0029] A filling layer 4 is poured inside the first reserved hole to secure the water tank 2. Specifically, the filling layer 4 is cast and filled with cement mortar, securing the upper portion of the finished water tank 2 and sealing the space between the finished water tank 2 and the waterproof layer 7. A concrete layer 5 is poured above the filling layer 4 and the ground above the first reserved hole, and a waterproof coating 6 is applied to the upper end of the concrete layer 5.
[0030] The construction method of the water tank floor drain waterproof structure includes the following steps:
[0031] S1. Open a second reserved hole on the floor slab 1, clean the surface of the floor slab 1 and the inner wall of the second reserved hole.
[0032] S2. Build brick layers 3 around the second reserved hole to form the first reserved hole. The upper end of the brick layers 3 forms the ground. The inner wall of the first reserved hole is plastered.
[0033] S3. Install the embedded pipe 10 in the second reserved hole, and pour fine stone concrete or non-shrinkage high-strength grouting material (made of high-strength material as aggregate, cement as binder, supplemented with high-fluidity, micro-expansion, anti-segregation and other materials) to form a grouting layer 8. The grouting layer 8 fixes the embedded pipe 10 in the second reserved hole, and the upper part of the grouting layer 8 forms a slope portion.
[0034] S4. Bonding polyester waterproof cloth to form waterproof layer 7. The lower end of the polyester waterproof cloth is bonded to the inner wall of the embedded pipe 10. The polyester waterproof cloth is bonded to the inner wall of the slope layer and the inner wall of the first reserved hole in sequence and then laid flat on the upper end of the brick layer 3.
[0035] S5. Fix the filter plate 17 on the side wall of the purchased finished water tank 2, and glue the non-woven fabric 16 on the upper end of the filter plate 17 to form an isolation layer 9. Place the finished water tank 2 into the first reserved hole, limit the filter plate 17 by the limiting ring 15, insert the lower end of the finished water tank 2 into the embedded pipe 10, and the side wall of the second water stop strip 13 and the inner wall of the slope layer are abutted and glued fixed.
[0036] S6. Place a steel mesh 11 at the bottom of the first reserved hole, with the lower end of the steel mesh 11 butted against the non-woven fabric 16. Then pour cement mortar into the first reserved hole to form a filling layer 4. The cement mortar is poured until it is flush with the upper end of the brick layer 3.
[0037] S7. Pour a concrete layer 5 on the ground above the brick layer 3. The inner side of the concrete layer 5 abuts against the outer wall of the finished sink 2. After the concrete layer 5 solidifies, the kitchen floor is formed. Apply a waterproof coating 6 in the prior art (for example, an acrylic waterproof coating made from a pure acrylic polymer emulsion) on top of the concrete layer 5. Then, choose whether to glue the floor to the kitchen floor as needed.
[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.
Claims
1. The water-resistant structure of the sink and floor drain is characterized by: The invention also comprises a first reserved hole and a second reserved hole which are arranged vertically and coaxially, the first reserved hole is located above the second reserved hole, and the inner diameter of the first reserved hole is larger than the inner diameter of the second reserved hole, a pre-buried pipe is embedded in the second reserved hole, the upper end of the pre-buried pipe is located at a lower height than the upper end of the second reserved hole, a grouting layer is provided in the second reserved hole, the grouting layer comprises a fixing portion arranged between the outer wall of the pre-buried pipe and the inner wall of the second reserved hole, and a slope finding portion arranged between the upper end of the pre-buried pipe and the upper end of the second reserved hole, the inner wall of the slope finding portion is frustum-shaped and the upper end is the large diameter end; the invention also comprises a waterproof layer, the lower end of the waterproof layer is located on the inner wall of the pre-buried pipe, and the upper end of the waterproof layer is flat on the ground at the upper end of the first reserved hole after passing through the inner wall of the slope finding portion and the inner wall of the first reserved hole; the inner wall of the slope finding portion is provided with an isolation layer, the isolation layer comprises a filter plate and a non-woven fabric flatly laid on the filter plate Cloth, a mounting hole for installing a water trough is opened in the middle of the filter plate, and the non-woven fabric is used to fill the space between the water trough and the inner wall of the slope part; the isolation layer is arranged on the outer wall of the water trough and fixed to the outer wall of the water trough, and a limiting ring is fixed to the inner wall of the embedded pipe, and the inner diameter of the limiting ring is larger than the inner diameter of the mounting hole, and a first annular water stop strip is fixed at the lower end of the filter plate, and an annular groove for the first water stop strip to be inserted is opened at the upper end of the limiting ring, and a second annular water stop strip is fixed to the outer wall of the filter plate, and the second water stop strip is bonded to the inner wall of the slope part. Both the first water stop strip and the second water stop strip are PN water stop strips that expand when exposed to water. A ring-shaped steel wire mesh is provided at the bottom of the inner wall of the first reserved hole, and the lower end of the steel wire mesh is against the non-woven fabric; a filling layer for fixing the water trough is cast on the inner wall of the first reserved hole, and a concrete layer is cast on the upper end of the filling layer and the ground at the upper end of the first reserved hole.
2. The water tank floor drain waterproof structure according to claim 1, characterized in that: The upper end of the concrete layer is coated with waterproof paint.
3. The water tank floor drain waterproof structure according to claim 1, characterized in that: The non-woven fabric is provided with multiple layers and the layers are fixed on the upper end of the filter plate.
4. The water tank floor drain waterproof structure according to claim 1, characterized in that: The embedded pipe includes a large diameter portion, a reducing portion and a small diameter portion connected in sequence from top to bottom. The reducing portion is truncated cone-shaped, the upper end of the reducing portion is the large diameter end and is connected to the large diameter portion, and the lower end of the reducing portion is the small diameter end and is connected to the small diameter portion.
5. The construction method of the water tank floor drain waterproof structure is characterized by: The following steps are involved: S1. Open a second reserved hole on the floor slab, clean the floor slab surface and the inner wall of the second reserved hole; S2, laying brick layers around the second reserved hole to form the first reserved hole, with the upper end of the brick layers forming the ground, and plastering the inner wall of the first reserved hole; S3. Install the embedded pipe in the second reserved hole and pour fine stone concrete or non-shrinkage high-strength grouting material to form a grouting layer; S4. Bonding a polyester waterproof cloth to form a waterproof layer, wherein the lower end of the polyester waterproof cloth is bonded to the inner wall of the embedded pipe, and the polyester waterproof cloth is bonded sequentially through the inner wall of the slope leveling layer and the inner wall of the first reserved hole, and then laid flat on the upper end of the brick layer; S5. Fix the filter plate on the side wall of the purchased finished water tank, and bond non-woven fabric to the upper end of the filter plate to form an isolation layer. Place the finished water tank into the first reserved hole, insert the lower end of the finished water tank into the embedded pipe, and make the side wall of the second water stop and the inner wall of the slope layer abut against each other. S6. Pour mortar into the first reserved hole to form a filling layer, and pour the mortar until it is flush with the upper end of the brick layer; S7. Pour a concrete layer on the ground above the brick layer. The inner side of the concrete layer is against the outer wall of the finished water tank. After the concrete layer solidifies, apply waterproof coating on the top of the concrete layer.
Citation Information
Patent Citations
New type of waterproof floor drain system and its construction method
CN102261123A