Road brick drainage anti-freezing system

By incorporating water collection troughs, seepage holes, drainage channels, and vent pipes into the paving brick system, the problem of water seepage and freezing cracking was solved, effectively draining the seepage and improving the stability and durability of the paving bricks.

CN223767059UActive Publication Date: 2026-01-06HEBEI CUIJIACHENG WATERPROOF ENG CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202520180498.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-05
Publication Date
2026-01-06
Estimated Expiration
2035-02-05

AI Technical Summary

Technical Problem

Existing paving bricks are cracking due to water seepage and freezing in low-temperature environments, which damages the cement mortar layer and affects the structural stability of the paving bricks.

Method used

The paving brick system is equipped with water collection troughs and seepage holes, combined with drainage troughs and vent pipes. Seepage water is discharged through the diversion channel and drainage pipe assembly, and moisture is discharged through the insulation layer and vent pipe to prevent the cement mortar layer from freezing and cracking.

Benefits of technology

Effective drainage reduces the risk of freezing and cracking of the cement mortar layer, and improves the stability and durability of the paving brick structure.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223767059U_ABST
    Figure CN223767059U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of building waterproofing, in particular to a road brick drainage anti-freezing system which comprises a slope body, a first waterproof layer is laid on the upper surface of the slope body, an isolation layer is laid on the upper surface of the first waterproof layer, and the upper surface of the isolation layer is connected with a road brick layer through a floor tile bonding layer. A plurality of water collecting grooves are formed in the upper surface of the isolation layer, and a plurality of water seepage holes penetrating through the upper surface and the lower surface of the isolation layer are formed in the water collecting grooves. According to the utility model, seepage water in cement mortar below the road brick can be guided and discharged, so that frost crack of the mortar layer in a low-temperature environment caused by excessive seepage water remained on the cement mortar layer is avoided, and the risk of damage to the upper-layer road brick is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of building waterproofing, and in particular to a drainage and antifreeze system for paving bricks. Background Technology

[0002] The prior art, Chinese utility model patent with publication number CN221702916U, discloses a waterproof and ventilated roof system for buildings. The roof protective layer in this system can be floor tiles or paving bricks. The paving bricks are pasted on the isolation layer with cement mortar. After rainwater or snow water seeps through the paving bricks (or floor tiles), it will be stored in the cement mortar layer. Although some of the seepage water in the cement mortar layer will flow into the water collection port, some seepage water will still remain (the isolation layer prevents the seepage water from flowing into the first waterproof layer below). This part of the retained seepage water will cause the cement mortar layer to freeze and crack in the low temperature environment, thereby damaging the top paving brick layer. Utility Model Content

[0003] Based on the above problems, the purpose of this utility model is to provide a drainage and antifreeze system for paving bricks. The technical solution adopted by this utility model is as follows:

[0004] This utility model provides a road brick drainage and antifreeze system, including a slope, the upper surface of which is covered with a first waterproof layer, the upper surface of which is covered with an isolation layer, and the upper surface of the isolation layer is connected to a road brick layer through a paving brick adhesive layer; the upper surface of the isolation layer is provided with a plurality of water collection troughs, and the water collection troughs are provided with a plurality of seepage holes penetrating the upper and lower surfaces of the isolation layer.

[0005] Preferably, the water collection troughs are arranged in a crisscross pattern; a cross-shaped guide channel is provided in the square area formed by the enclosing of the water collection troughs, and the height of the middle area of ​​the guide channel is higher than the height of its end area.

[0006] Preferably, the lower surface of the isolation layer is provided with a plurality of crisscrossing drainage grooves, and the lower end of the seepage hole is located in the drainage groove; a vent pipe is provided at the high point of the slope, the upper end of the vent pipe extends above the paving brick layer, the lower end of the vent pipe extends into the drainage groove, and a rain cap is provided at the upper end of the vent pipe.

[0007] Preferably, a thermal insulation layer and a second waterproof layer are provided between the first waterproof layer and the slope, arranged sequentially from top to bottom;

[0008] A drainage pipe assembly is installed at the lower part of the slope, comprising a first drainage pipe and a second drainage pipe. The diameter of the first drainage pipe is larger than that of the second drainage pipe, and the upper end of the first drainage pipe is connected to the slope. The lower end of the second drainage pipe extends into the first drainage pipe, and the upper end of the second drainage pipe extends into the first waterproof layer. The first waterproof layer has a first drainage outlet at the upper end of the second drainage pipe, and the edge of the first drainage outlet extends into the second drainage pipe. The second waterproof layer has a second drainage outlet at the upper end of the first drainage pipe, and the edge of the second drainage outlet extends into the first drainage pipe. A water collection port is provided on the paving brick layer at a position corresponding to the upper end of the second drainage pipe.

[0009] Preferably, the lower surface of the insulation layer is provided with a crisscrossing second water guiding and steam venting channel;

[0010] A vent pipe is installed at the top of the slope, with the upper end of the vent pipe extending above the paving brick layer and the lower end extending into the second water-guiding vent trough. A rain cap is installed at the upper end of the vent pipe.

[0011] Preferably, an automatic pipe closing valve is provided at the lower end of the second drain pipe.

[0012] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0013] This invention can drain the seepage water in the cement mortar under the paving bricks, preventing excessive seepage water from remaining in the cement mortar layer and causing the mortar layer to freeze and crack in low-temperature environments, thus reducing the risk of damage to the upper paving bricks. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the main structure of the paving brick drainage and antifreeze system in Embodiment 1 of this utility model;

[0016] Figure 2 This is a left-side structural schematic diagram of the drainage and antifreeze system for paving bricks according to Embodiment 1 of this utility model;

[0017] Figure 3 for Figure 1 A magnified view of a section at point A in the middle;

[0018] Figure 4 This is a top view (i.e., upper surface) structural diagram of the isolation layer in Embodiment 1 of this utility model;

[0019] Figure 5 This is a bottom view (i.e., lower surface) structural diagram of the isolation layer in Embodiment 1 of this utility model;

[0020] Figure 6 This is a schematic diagram of the main structure of the paving brick drainage and antifreeze system in Embodiment 2 of this utility model;

[0021] Figure 7 This is a bottom view (i.e., lower surface) structural diagram of the insulation layer in Embodiment 2 of this utility model.

[0022] Figure 8 This is a schematic diagram of the main structure of the insulation layer in Embodiment 2 of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Slope; 2. First waterproof layer; 201. First drainage outlet; 3. Insulation layer; 301. Second water guiding and steam venting channel; 4. Second waterproof layer; 401. Second drainage outlet; 5. Isolation layer; 501. Water collection trough; 502. Seepage hole; 503. Drainage channel; 504. Diversion channel; 6. Tile bonding layer; 7. Drainage pipe assembly; 701. First drainage pipe; 702. Second drainage pipe; 8. Pavement layer; 801. Water collection outlet; 9. Vent pipe; 10. Steam venting pipe; 11. Automatic pipe closing valve; Detailed Implementation

[0024] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] Example 1

[0026] like Figures 1 to 5 As shown, this embodiment discloses a paving brick drainage and antifreeze system, including a slope 1. In this embodiment, the slope 1 is a balcony made of concrete. The upper surface of the slope 1 is covered with a first waterproof layer 2. The upper surface of the first waterproof layer 2 is covered with an isolation layer 5. The upper surface of the isolation layer 5 is connected to a paving brick layer 8 through a paving brick adhesive layer 6, which is usually cement mortar. The paving brick layer 8 can be paving bricks or ceramic tiles. The isolation layer 5 separates the paving brick adhesive layer 6 from the first waterproof layer 2 to prevent them from directly contacting each other, thereby preventing stones in the paving brick adhesive layer 6 from damaging the first waterproof layer 2.

[0027] To minimize water seepage from the tile adhesive layer 6, several water collection troughs 501 are provided on the upper surface of the isolation layer 5. Each water collection trough 501 contains several seepage holes 502 penetrating the upper and lower surfaces of the isolation layer 5. Rainwater or snowmelt seeps through the paving brick layer 8 and enters the tile adhesive layer 6. Some of the seepage in the tile adhesive layer 6 flows downhill along the slope, converging in the water collection troughs 501 and flowing through the seepage holes 502 into the first waterproof layer 2 below. Finally, the water flows through the first waterproof layer 2 and into the lower part of the slope 1. Since the slope 1 in this embodiment is a balcony, a drainage pipe can be installed at the lower part of the balcony, and the water seeping into the first waterproof layer 2 eventually flows into the drainage pipe.

[0028] In this embodiment, several water collection tanks 501 are arranged in a crisscross pattern. A cross-shaped guide channel 504 is provided in the square area formed by the several water collection tanks 501. The height of the middle area of ​​the guide channel 504 is higher than the height of its end area, which facilitates the flow of water to the surrounding water collection tanks 501.

[0029] In this embodiment, a plurality of drainage channels 503 are provided on the lower surface of the isolation layer 5, and the lower end of the seepage hole 502 is located in the drainage channel 503; a vent pipe 9 is provided at the high point of the slope 1, the upper end of the vent pipe 9 extends above the paving brick layer 8, the lower end of the vent pipe 9 extends into the drainage channel 503, and a rain cap is provided at the upper end of the vent pipe 9. The vent pipe 9 ensures that the position of the drainage channel 503 is the same as the external atmospheric pressure, so that the seepage hole 502 and the drainage channel 503 drain smoothly.

[0030] In this embodiment, the insulation layer 5 uses commonly available materials with low water absorption, such as foam board and extruded polystyrene board, as thermal insulation materials.

[0031] Example 2

[0032] like Figure 6 As shown, in this embodiment, the slope 1 is a roof made of concrete, and a drainage-facilitating slope-forming layer is directly formed on the upper surface of the slope 1. Between the first waterproof layer 2 and the slope 1, an insulation layer 3 and a second waterproof layer 4 are sequentially arranged from top to bottom.

[0033] A drainage pipe assembly 7 is installed at the lower part of the slope 1. The drainage pipe assembly 7 includes a first drainage pipe 701 and a second drainage pipe 702. The diameter of the first drainage pipe 701 is larger than the diameter of the second drainage pipe 702. The upper end of the first drainage pipe 701 is connected to the slope 1, the lower end of the second drainage pipe 702 extends into the first drainage pipe 701, and the upper end of the second drainage pipe 702 extends into the first waterproof layer 2.

[0034] The first waterproof layer 2 has a first drain outlet 201 reserved at the upper end of the second drain pipe 702, and the edge of the first drain outlet 201 extends into the second drain pipe 702; the second waterproof layer 4 has a second drain outlet 401 reserved at the upper end of the first drain pipe 701, and the edge of the second drain outlet 401 extends into the first drain pipe 701; the paving brick layer 8 has a water collection port 801 provided at a position corresponding to the upper end of the second drain pipe 702.

[0035] In this embodiment, as Figure 7 and 8 As shown, the lower surface of the insulation layer 3 is provided with a crisscrossing second water-guiding and steam-venting channel 301; a steam venting pipe 10 is provided at the high point of the slope 1, the upper end of the steam venting pipe 10 extends above the paving brick layer 8, the lower end of the steam venting pipe 10 extends into the second water-guiding and steam-venting channel 301, and a rain cap is provided at the upper end of the steam venting pipe 10.

[0036] Under clear weather conditions, the exhaust pipe 10 installed at the top of the slope 1 will create a chimney effect. The rising airflow will flow through the gap between the first drainage pipe 701 and the second drainage pipe 702 into the second water-guiding exhaust channel 301 at the bottom of the insulation layer 3. The flowing airflow will carry the moisture formed by rainwater that has seeped into the insulation layer 3 into the exhaust pipe 10 through the second water-guiding exhaust channel 301, and finally discharge the moisture to the outside.

[0037] In this embodiment, an automatic pipe closing valve 11 is provided at the lower end of the second drain pipe 702. The automatic pipe closing valve 11 is closed in its natural state, but will open when subjected to rainwater impact.

[0038] In this embodiment, the insulation layer 3 uses commercially available materials with low water absorption rates, such as foam board and extruded polystyrene board. For the remaining structures in this embodiment, please refer to the patent document CN221702916U in the background section and the technical solution disclosed in Embodiment 1.

[0039] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A road brick drainage anti-freezing system, comprising a slope body (1), an upper surface of the slope body (1) being paved with a first waterproof layer (2), an upper surface of the first waterproof layer (2) being paved with an isolation layer (5), and an upper surface of the isolation layer (5) being connected with a road brick layer (8) through a tile adhesive layer (6). characterized in that An upper surface of the isolation layer (5) is provided with a plurality of water collecting grooves (501), and each of the water collecting grooves (501) is provided with a plurality of water seepage holes (502) penetrating through upper and lower surfaces of the isolation layer (5).

2. The roadway brick drainage anti-freezing system according to claim 1, wherein: The plurality of water collecting grooves (501) are arranged in a longitudinal and transverse staggered manner, and a square area enclosed by the plurality of water collecting grooves (501) is provided with a rice-shaped flow guide groove (504), and a middle area of the flow guide groove (504) is higher than end areas thereof.

3. The roadway brick drainage anti-icing system of claim 2, wherein: A lower surface of the isolation layer (5) is provided with a plurality of longitudinal and transverse staggered drainage grooves (503), and lower ports of the water seepage holes (502) are located in the drainage grooves (503). An upper end of the ventilation pipe (9) extends above the road brick layer (8), a lower end of the ventilation pipe (9) extends into the drainage groove (503), and the upper end of the ventilation pipe (9) is provided with a rainproof cap.

4. The roadway brick drainage anti-icing system of claim 3, wherein: The first waterproof layer (2) and the slope body (1) are provided with a thermal insulation layer (3) and a second waterproof layer (4) arranged in sequence from top to bottom. A lower part of the slope body (1) is provided with a drainage pipe group (7), the drainage pipe group (7) comprises a first drainage pipe (701) and a second drainage pipe (702), a pipe diameter of the first drainage pipe (701) is greater than a pipe diameter of the second drainage pipe (702), and an upper end of the first drainage pipe (701) is connected with the slope body (1); a lower end of the second drainage pipe (702) extends into the first drainage pipe (701), and an upper end of the second drainage pipe (702) extends into the first waterproof layer (2). The first waterproof layer (2) is provided with a first drainage port (201) at an upper port of the second drainage pipe (702), an edge of the first drainage port (201) extends into the second drainage pipe (702), the second waterproof layer (4) is provided with a second drainage port (401) at an upper port of the first drainage pipe (701), and an edge of the second drainage port (401) extends into the first drainage pipe (701). The road brick layer (8) is provided with a water collecting port (801) at a position corresponding to the upper end of the second drainage pipe (702).

5. The roadway brick drainage anti-icing system of claim 4, wherein: A lower surface of the thermal insulation layer (3) is provided with longitudinal and transverse staggered second water guide and steam discharge grooves (301). An upper end of the steam discharge pipe (10) extends above the road brick layer (8), a lower end of the steam discharge pipe (10) extends into the second water guide and steam discharge grooves (301), and the upper end of the steam discharge pipe (10) is provided with a rainproof cap.

6. The roadway brick drainage anti-icing system of claim 5, wherein: A lower end of the second drainage pipe (702) is provided with a pipeline automatic closing valve (11).

Citation Information

Patent Citations

  • Waterproof steam exhaust system in building roof

    CN221702916U