Fabricated concrete prefabricated component with a hydrophobic structure

By introducing cross-shaped drainage channels and splicing channels into precast concrete components, combined with positioning blocks and a nested steel reinforcement structure, the problems of water absorption on the component surface and loose splicing were solved, achieving efficient drainage and improved structural stability.

CN224494785UActive Publication Date: 2026-07-14HEBEI SHIFENG GREEN BUILDING TECH DEV CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI SHIFENG GREEN BUILDING TECH DEV CO LTD
Filing Date
2025-08-14
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Traditional precast concrete components are prone to absorbing water and moisture, leading to efflorescence, steel corrosion, and structural cracking. Furthermore, the splicing method has low pull-out resistance, making them easy to loosen and shift, which affects the durability and integrity of the components.

Method used

The design incorporates a cross-shaped drainage channel, drainage holes, and spliced ​​drainage channels, combined with a triple splicing node structure consisting of positioning blocks, nested steel bars, and post-cast concrete, forming a systematic flow path and enhancing the strength of the splicing nodes.

Benefits of technology

It achieves highly efficient hydrophobicity on the component surface, enhances structural stability and integrity, adapts to the paving requirements of complex terrain, and improves construction efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of prefabricated concrete components with water-repellent structure, it is related to prefabricated concrete component technical field, including a plurality of splicing main body, splicing unit, connecting block and side unit, the splicing main body includes concrete slab, the periphery of concrete slab is fixedly connected with connecting top plate and two symmetrical distribution's first horizontal steel, the upper end of concrete slab is equipped with water-repellent groove, the upper end center of concrete slab is equipped with water-repellent hole, the upper end of connecting top plate is equipped with splicing water tank, the upper end middle part of connecting top plate is equipped with first semicircular pouring hole, in the utility model, by the threefold splicing node structure of positioning block guide, steel bar nesting and post-cast concrete, so that splicing node strength and integrity significantly improve, structural stability is enhanced, while modularization frame design supports quick assembly and arbitrary direction expansion, to adapt to the individualized paving demand of complex terrain and improve construction efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of precast concrete component technology, specifically to an assembled precast concrete component with a hydrophobic structure. Background Technology

[0002] Precast concrete components are concrete structures manufactured in factories and assembled on-site. They offer advantages such as high construction efficiency, controllable quality, energy saving, and environmental friendliness, and are widely used in modern construction. However, traditional precast concrete components have a significant drawback: concrete itself is porous and its surface easily absorbs moisture. Prolonged exposure to damp environments can lead to problems such as surface efflorescence, steel corrosion, and structural cracking, severely impacting the durability and service life of the components. Particularly in rainy areas, underground structures, or water-related projects, rainwater or groundwater can easily seep through the component surface or create leakage channels at joints, leading to potential hazards such as indoor water seepage and structural damage.

[0003] Existing components mostly have planar surfaces, which allow rainwater to easily accumulate in the joints, leading to groundwater accumulation. Furthermore, the joints are prone to forming seepage channels, causing softening and settlement of the underground base. In addition, traditional splicing methods rely on simple tenons or adhesives, which have low pull-out resistance and are prone to loosening and displacement under long-term loads, resulting in weak overall structural integrity. Therefore, a precast concrete component with a hydrophobic structure is proposed to solve the problems mentioned above. Utility Model Content

[0004] To address the aforementioned technical problems, this invention provides a precast concrete component with a hydrophobic structure. This solution solves the problems mentioned in the background section, where existing components often have planar surfaces, making it easy for rainwater to accumulate in the joints, leading to groundwater accumulation. Furthermore, the joints are prone to forming seepage channels, causing softening and settlement of the underground base. Additionally, traditional splicing methods rely on simple tenons or adhesives, which have low pull-out resistance and are prone to loosening and displacement under long-term loads.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A precast concrete component with a hydrophobic structure includes several splicing bodies, splicing units, connecting blocks, and side units;

[0007] The splicing body includes a concrete slab, with a connecting top plate and two symmetrically distributed first transverse steel bars fixedly connected around the four sides of the concrete slab. A drainage groove is provided at the upper end of the concrete slab, and a drainage hole is provided through the center of the upper end of the concrete slab. A splicing water groove is provided at the upper end of the connecting top plate, and a first semi-circular arc pouring hole is provided through the center of the upper end of the connecting top plate. Two symmetrically distributed first positioning blocks are fixedly connected to the lower end of the connecting top plate.

[0008] The splicing unit includes a splicing base plate, both ends of which are fixedly connected to side connecting plates. Each of the two side connecting plates has four evenly distributed first threaded holes through one end facing each other. The upper end of the splicing base plate is fixedly connected to two symmetrically distributed vertical steel bars.

[0009] The side unit includes a side plate, with a second transverse steel bar and two symmetrically distributed second positioning blocks fixedly connected to the inner side of the side plate. A second semi-circular arc casting hole is opened through the middle of the upper end of the side plate, and four third threaded holes are opened through the outer side of the side plate.

[0010] Preferably, the connecting block has four evenly distributed second threaded holes around its perimeter, and the connecting block is connected to the adjacent side connecting plate by bolts.

[0011] Preferably, corner blocks are movably connected between the two side connecting plates located at the corners. Each corner block has four evenly distributed fourth threaded holes at the end facing the two adjacent side connecting plates. The corner blocks are connected to the adjacent side connecting plates by bolts.

[0012] Preferably, the first transverse steel bar and the second transverse steel bar are respectively movably connected to the outside of the two vertical steel bars.

[0013] Preferably, one end of each of the two side connecting plates is slidably connected to one end of each of the two second positioning blocks that is far from each other, and one end of each of the two first positioning blocks that is far from each other.

[0014] The advantages of this utility model compared with the prior art are:

[0015] This solution proposes a precast concrete component with a hydrophobic structure. By setting up cross-shaped drainage channels, drainage holes, and splicing channels, rainwater forms a systematic flow path on the surface of the component and quickly converges and infiltrates towards the center, thereby achieving efficient drainage, meeting the safety requirements of open-air paving scenarios, and promoting the natural infiltration of rainwater.

[0016] This solution utilizes a triple splicing node structure consisting of positioning block guidance, steel reinforcement nesting, and post-cast concrete, which significantly improves the strength and integrity of the splicing nodes and enhances structural stability. At the same time, the modular frame design supports rapid assembly and expansion in any direction, thereby adapting to the personalized paving needs of complex terrains and improving construction efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2This is a schematic diagram of the structure of the splicing main body in this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the connecting top plate in this utility model;

[0020] Figure 4 This is a schematic diagram of the concrete slab structure in this utility model;

[0021] Figure 5 This is a schematic diagram of the splicing unit in this utility model;

[0022] Figure 6 This is a schematic diagram of the connection of the splicing unit in this utility model;

[0023] Figure 7 This is a schematic diagram of the side unit in this utility model;

[0024] Figure 8 This is a schematic diagram showing the connection between the side unit and the splicing body in this utility model;

[0025] Figure 9 This is a schematic diagram of the corner block in this utility model.

[0026] The numbers on the map are:

[0027] 1. Main assembly; 101. Concrete slab; 102. First transverse reinforcement; 103. Drainage channel; 104. Drainage hole; 105. Connecting top slab; 106. Splicing water channel; 107. First positioning block; 108. First semi-circular pouring hole;

[0028] 2. Splicing unit; 201. Splicing base plate; 202. Side connecting plate; 203. First threaded hole; 204. Vertical reinforcement;

[0029] 3. Connecting block; 301. Second threaded hole;

[0030] 4. Side unit; 401. Side plate; 402. Third threaded hole; 403. Second transverse reinforcement; 404. Second semi-circular casting hole; 405. Second positioning block;

[0031] 5. Corner block; 501. Fourth threaded hole. Detailed Implementation

[0032] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0033] Reference Figures 1-9As shown, a precast concrete component with a hydrophobic structure includes several splicing bodies 1, splicing units 2, connecting blocks 3, and side units 4.

[0034] The splicing body 1 includes a concrete slab 101. A connecting top plate 105 and two symmetrically distributed first transverse steel bars 102 are fixedly connected around the four sides of the concrete slab 101. A drainage groove 103 is provided at the upper end of the concrete slab 101. A drainage hole 104 is provided through the center of the upper end of the concrete slab 101. A splicing water groove 106 is provided at the upper end of the connecting top plate 105. A first semi-circular arc pouring hole 108 is provided through the middle of the upper end of the connecting top plate 105. Two symmetrically distributed first positioning blocks 107 are fixedly connected to the lower end of the connecting top plate 105.

[0035] The splicing unit 2 includes a splicing base plate 201. Both ends of the splicing base plate 201 are fixedly connected to side connecting plates 202. Each of the two side connecting plates 202 has four evenly distributed first threaded holes 203 through it at one end. The upper end of the splicing base plate 201 is fixedly connected to two symmetrically distributed vertical steel bars 204.

[0036] The side unit 4 includes a side plate 401. The inner side of the side plate 401 is fixedly connected with a second transverse steel bar 403 and two symmetrically distributed second positioning blocks 405. A second semi-circular arc casting hole 404 is opened through the middle of the upper end of the side plate 401, and four third threaded holes 402 are opened through the outer side of the side plate 401.

[0037] Furthermore, four evenly distributed second threaded holes 301 are provided around the connecting block 3, and the connecting block 3 is connected to the adjacent side connecting plate 202 by bolts.

[0038] Furthermore, corner blocks 5 are movably connected between the two side connecting plates 202 located at the corners. The corner blocks 5 have four evenly distributed fourth threaded holes 501 at the end facing the two adjacent side connecting plates 202, and two connecting screw holes at the end opposite to the two adjacent side connecting plates 202. The corner blocks 5 are connected to the adjacent side connecting plates 202 by bolts.

[0039] Furthermore, the connecting block 3 is used to connect two adjacent splicing units 2. By abutting the side connecting plate 202 on one side of the splicing base plate 201 with the side of the connecting block 3, and then installing bolts into the first threaded hole 203 and the second threaded hole 301, the side connecting plate 202 and the connecting block 3 can be connected and fixed. The four sets of splicing units 2 can form a small rectangular frame for installing the splicing body 1. The four sides of the small rectangular frame can be extended by installing new splicing units 2 on the corresponding connecting blocks 3 to achieve horizontal extension of the frame. Multiple small rectangular frames are spliced ​​to form a sidewalk frame. The two adjacent side connecting plates 202 located at the corner of the sidewalk frame are connected to the corner block 5 by bolts, the first threaded hole 203 and the fourth threaded hole 501.

[0040] Furthermore, the first transverse reinforcement 102 and the second transverse reinforcement 403 are respectively movably connected to the outside of the two vertical reinforcements 204.

[0041] Furthermore, the opposite ends of the two side connecting plates 202 are slidably connected to the ends of the two second positioning blocks 405 that are far apart from each other and the ends of the two first positioning blocks 107 that are far apart from each other.

[0042] Furthermore, after the sidewalk frame is assembled, the first positioning blocks 107 at the lower end of the connecting top plate 105 around the concrete slab 101 can be inserted into the inner side of the two side connecting plates 202 of the four sets of splicing units 2 that form a small rectangular frame. During the insertion process, ensure that the vertical steel bars 204 of the four sets of splicing units 2 on the side close to the splicing body 1 are inserted into the inner side of the first horizontal steel bars 102 around the splicing body 1 to complete the installation of the splicing body 1.

[0043] Furthermore, after the splicing body 1 is installed, the two second positioning blocks 405 in the side unit 4 are inserted into the inner side of the two side connecting plates 202 on the edge. During the insertion process, it is ensured that the vertical steel bar 204 on the edge is inserted into the inner side of the second horizontal steel bar 403. After the side unit 4 is installed, the side plate 401 can be fixed by installing bolts in the third threaded hole 402 and the second threaded hole 301 and the third threaded hole 402 and the connecting screw hole, respectively.

[0044] Furthermore, the drainage groove 103 is cross-shaped and is inclined towards the direction of the drainage hole 104.

[0045] Furthermore, after the main body 1 and the side unit 4 are installed, the two adjacent splicing water tanks 106 will be spliced ​​into a drainage channel and this drainage channel is connected to the drainage trough 103. The two adjacent first semi-circular arc pouring holes 108 and the adjacent first semi-circular arc pouring holes 108 and second semi-circular arc pouring holes 404 will be spliced ​​into a complete pouring hole. At this time, cement is injected into the pouring hole, which can fill the area where the first horizontal steel bar 102, the vertical steel bar 204 and the second horizontal steel bar 403 are located. After the cement dries, a stable connection can be formed. In rainy weather, rainwater will flow through the drainage channel and the drainage trough 103 to the drainage hole 104 and seep into the underground soil through the drainage hole 104, thereby achieving the effect of drainage.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A precast concrete component with a hydrophobic structure, characterized in that, It includes several splicing main bodies (1), splicing units (2), connecting blocks (3) and side units (4); The splicing body (1) includes a concrete slab (101), and a connecting top plate (105) and two symmetrically distributed first transverse steel bars (102) are fixedly connected around the four sides of the concrete slab (101). A drainage groove (103) is provided at the upper end of the concrete slab (101), and a drainage hole (104) is provided through the center of the upper end of the concrete slab (101). A splicing water groove (106) is provided at the upper end of the connecting top plate (105), and a first semi-circular arc pouring hole (108) is provided through the middle of the upper end of the connecting top plate (105). Two symmetrically distributed first positioning blocks (107) are fixedly connected to the lower end of the connecting top plate (105). The splicing unit (2) includes a splicing base plate (201), both ends of which are fixedly connected to side connecting plates (202). Each of the two side connecting plates (202) has four evenly distributed first threaded holes (203) through it at one end. The upper end of the splicing base plate (201) is fixedly connected to two symmetrically distributed vertical steel bars (204). The side unit (4) includes a side plate (401), with a second transverse steel bar (403) and two symmetrically distributed second positioning blocks (405) fixedly connected to the inner side of the side plate (401). A second semi-circular arc casting hole (404) is provided through the middle of the upper end of the side plate (401), and four third threaded holes (402) are provided through the outer side of the side plate (401).

2. The precast concrete component with a hydrophobic structure according to claim 1, characterized in that: The connecting block (3) has four evenly distributed second threaded holes (301) around its perimeter. The connecting block (3) is connected to the adjacent side connecting plate (202) by bolts.

3. A precast concrete component with a hydrophobic structure according to claim 1, characterized in that: A corner block (5) is movably connected between the two side connecting plates (202) located at the corner. The corner block (5) and the two adjacent side connecting plates (202) are provided with four evenly distributed fourth threaded holes (501). The corner block (5) is connected to the adjacent side connecting plate (202) by bolts.

4. A precast concrete component with a hydrophobic structure according to claim 1, characterized in that: The first transverse steel bar (102) and the second transverse steel bar (403) are respectively movably connected to the outside of the two vertical steel bars (204).

5. A precast concrete component with a hydrophobic structure according to claim 1, characterized in that: The opposite ends of the two side connecting plates (202) are slidably connected to the opposite ends of the two second positioning blocks (405) and the opposite ends of the two first positioning blocks (107).