Fair-faced concrete prefabricated slab

Abstract

The utility model discloses a fair-faced concrete precast slab which comprises a regular hexagonal prism-shaped slab body (1), clamping heads (2) are arranged on three adjacent side walls of the slab body (1), and clamping grooves (3) matched with the clamping heads (2) are formed in the other three side walls of the slab body (1); a blind hole (4) is formed in the bottom of the plate body (1), six water grooves (5) are formed in the bottom of the plate body (1), the outer side ends of the six water grooves (5) are located on the six edges of the plate body (1) respectively, and the inner side ends of the six water grooves (5) are all communicated with the blind hole (4). An exhaust hole (6) communicated with the blind hole (4) is formed in the top surface of the plate body (1); the clamping groove (3) is a dovetail groove, and the clamping groove (3) is in clearance fit with the clamping head (2). The pavement structure has the advantages of being good in pavement effect and capable of preventing accumulated water from splashing.

Description

Technical Field

[0001] The utility model belongs to the field of concrete prefabricated panels. Background Art

[0002] Fair-faced concrete precast panels (precast panels for short) are widely used in engineering projects. Precast panels are often laid as floor tiles on certain soil bases. Compared with directly pouring concrete floors, they have a shorter construction period and also have better visual effects.

[0003] The existing prefabricated panels are square in structure and are used in rectangular arrays for paving. They have the following defects: First, there is a lack of connection between adjacent prefabricated panels, which are easily slipped by external forces, and large gaps are easily formed between adjacent prefabricated panels, which reduces the paving effect. Second, because there may be a small amount of unevenness on the paved ground, when pedestrians pass by the prefabricated panels, the prefabricated panels are easily lifted up by being stepped on. After rain, the lifted prefabricated panels fall down, splashing the accumulated water and getting pedestrians' clothes wet. Utility Model Content

[0004] The purpose of the utility model is to provide a prefabricated plain concrete slab, which has the advantages of good paving effect and can avoid splashing of accumulated water.

[0005] The technical solution of the utility model is a prefabricated plain concrete plate, comprising a regular hexagonal prism-shaped plate body, three adjacent side walls of the plate body are provided with clamping heads, and the remaining three side walls of the plate body are provided with clamping grooves matched with the clamping heads.

[0006] In the above-mentioned precast plain concrete slab, a blind hole is provided at the bottom of the slab body, and six water grooves are provided at the bottom of the slab body. The outer ends of the six water grooves are respectively located on the six edges of the slab body, and the inner ends of the six water grooves are connected to the blind hole.

[0007] In the aforementioned precast plain concrete slab, an exhaust hole communicating with the blind hole is provided on the top surface of the slab body.

[0008] In the above-mentioned precast plain concrete slab, the clamping groove is a dovetail groove, and the clamping groove and the clamping head are clearance-matched.

[0009] In the aforementioned precast plain concrete board, the top surface of the clamp is flush with the top surface of the board body, the bottom surface of the clamp is higher than the bottom surface of the board body, the upper end of the clamping slot is located on the top surface of the board body, and the lower end of the clamping slot is flush with the bottom surface of the clamping head.

[0010] In the aforementioned precast plain concrete slab, the thickness of the slab is 5-10 cm, and the side length of the slab is 15-30 cm.

[0011] In the above-mentioned precast plain concrete board, the board body has a thickness of 6 cm and a side length of 20 cm, a blind hole with a diameter of 25 cm and a depth of 3 cm, a water tank with a depth of 2 cm and a width of 1 cm, and a vent hole with a diameter of 0.8 cm.

[0012] Compared with the prior art, the main structure of the utility model is a whole hexagonal prism, that is, a regular hexagon when viewed from above, and is provided with three clamps and three clamping slots, which can be spliced ​​for paving. After paving is completed, the inner prefabricated board is fixed by the six adjacent prefabricated boards, and all prefabricated boards are connected into an integral structure, which can effectively avoid the formation of large gaps between the prefabricated boards and improve the paving effect. By setting blind holes, the contact area between the prefabricated board and the paving surface is reduced. When a prefabricated board with a certain warping rotates and falls, it can effectively avoid splashing of accumulated water and prevent pedestrians' clothes from getting wet. In summary, the utility model has the advantages of better paving effect and the ability to avoid splashing of accumulated water. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model when viewed from above.

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the utility model when viewed from above.

[0015] Figure 3 It is a bottom view schematic diagram of the utility model.

[0016] Figure 4 It is a top view schematic diagram of the utility model.

[0017] Figure 5 It is a schematic diagram of the utility model in a combined state.

[0018] The markings in the accompanying drawings are: 1-plate body, 2-clip head, 3-clip slot, 4-blind hole, 5-water tank, 6-exhaust hole. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0020] Embodiment. A precast concrete panel, such as Figures 1 to 4 As shown, it comprises a regular hexagonal prism-shaped plate body 1, wherein the plate body 1 has a thickness of 6 cm and a side length of 20 cm.

[0021] A clamping head 2 is provided on three adjacent side walls of the plate body 1, the top surface of the clamping head 2 is flush with the top surface of the plate body 1, and the bottom surface of the clamping head 2 is higher than the bottom surface of the plate body 1. A clamping groove 3 cooperating with the clamping head 2 is provided on the other three side walls of the plate body 1, and the clamping groove 3 is a dovetail groove, and the clamping groove 3 and the clamping head 2 are clearance-matched, the upper end of the clamping groove 3 is located on the top surface of the plate body 1, and the lower end of the clamping groove 3 is flush with the bottom surface of the clamping head 2.

[0022] A blind hole 4 is provided at the bottom of the plate body 1 , and the blind hole 4 has a diameter of 25 cm and a depth of 3 cm.

[0023] Six water grooves 5 are arranged on the bottom surface of the plate body 1 , the outer ends of the six water grooves 5 are respectively located on the six edges of the plate body 1 , and the inner ends of the six water grooves 5 are connected to the blind holes 4 . The depth of the water grooves 5 is 2 cm and the width is 1 cm.

[0024] An exhaust hole 6 connected to the blind hole 4 is provided on the top surface of the plate body 1, and the diameter of the exhaust hole 6 is 0.8 cm.

[0025] How to use: Figure 5 As shown, multiple prefabricated panels are spliced ​​and used, and the three clamps 2 on one prefabricated panel are respectively clamped into the clamping slots 3 of three adjacent prefabricated panels, and at the same time, the three clamping slots 3 on it are embedded by the clamps 2 on the other three adjacent prefabricated panels, so that one prefabricated panel is connected to six adjacent prefabricated panels at the same time. A single prefabricated panel weighs about 13 kilograms.

[0026] Since the slot 3 is not a through slot, when the two prefabricated panels are spliced ​​together, there is a connection limit in the height direction between the two prefabricated panels, which not only makes the surface of the prefabricated panels smoother after splicing, but also when any prefabricated panel is stepped on, the adjacent prefabricated panels can provide pressure to prevent it from rotating, thereby avoiding splashing of water accumulated at the bottom.

[0027] The water tank 5 at the bottom of the prefabricated board forms a channel for rainwater, which is convenient for the drainage of water at the bottom of the prefabricated board. The vent holes 6 on the prefabricated board can accelerate the drainage of moisture from the ground. At the same time, when the prefabricated board is damaged, it can provide a force point, and the prefabricated board can be taken out by passing a hook through the vent holes 6, which provides convenience for later maintenance.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

Claims

1. A precast plain concrete panel, characterized in that: The plate body (1) comprises a regular hexagonal prism-shaped plate body, wherein three adjacent side walls of the plate body (1) are each provided with a clamping head (2), and the remaining three side walls of the plate body (1) are each provided with a clamping groove (3) matched with the clamping head (2).

2. The precast bare concrete panel according to claim 1, characterized in that: The bottom of the plate body (1) is provided with a blind hole (4), and the bottom of the plate body (1) is provided with six water grooves (5), the outer ends of the six water grooves (5) are respectively located on the six edges of the plate body (1), and the inner ends of the six water grooves (5) are all connected to the blind hole (4).

3. The plain concrete precast panel according to claim 1, characterized in that: An exhaust hole (6) communicating with the blind hole (4) is provided on the top surface of the plate body (1).

4. The precast plain concrete panel according to claim 1, characterized in that: The clamping groove (3) is a dovetail groove, and the clamping groove (3) and the clamping head (2) are clearance-matched.

5. The precast bare concrete panel according to claim 1, characterized in that: The top surface of the clamping head (2) is flush with the top surface of the plate body (1), the bottom surface of the clamping head (2) is higher than the bottom surface of the plate body (1), the upper end of the clamping slot (3) is located on the top surface of the plate body (1), and the lower end of the clamping slot (3) is flush with the bottom surface of the clamping head (2).

6. The precast bare concrete panel according to claim 1, characterized in that: The thickness of the plate body (1) is 5-10 cm, and the side length of the plate body (1) is 15-30 cm.

7. The precast plain concrete panel according to claim 6, characterized in that: The plate body (1) has a thickness of 6 cm and a side length of 20 cm, the blind hole (4) has a diameter of 25 cm and a depth of 3 cm, the water tank (5) has a depth of 2 cm and a width of 1 cm, and the exhaust hole (6) has a diameter of 0.8 cm.

Images