CN219451243U - Roofing flashing precast concrete piece - Google Patents

Abstract

The application discloses roofing flashing precast concrete piece, it includes first connecting portion and second connecting portion, one side of first connecting portion set up perpendicularly in one side of second connecting portion, first connecting portion with the connection reentrant corner department of second connecting portion is provided with the arc concave surface, first connecting portion with be provided with the reinforcing bar frame that is used for the support in the second connecting portion altogether. This application has the effect that improves flashing structural strength and life.

Description

A prefabricated concrete block for roof flashing

technical field

The present application relates to the technical field of house construction, in particular to a prefabricated concrete block for roof flashing.

Background technique

According to the use requirements of the building, structures such as pipes, chimneys, and parapets are often arranged on the roof of the building, and these structures are vertically arranged with the roof of the building. In order to reduce the occurrence of cracks at the joints between the horizontal and vertical structures, thereby causing water seepage to affect the strength of the building structure, it is necessary to extend one end of the waterproof layer of the roof and cover the joints between the horizontal and vertical structures. A leaky structure is called a flashing. Before laying the waterproof layer, it is necessary to plaster and level the vertical and horizontal interface in advance, and cover it with an additional waterproof layer.

In view of the related technologies mentioned above, the inventor believes that the installation steps of the current flashing structure are relatively complicated and the structural strength is low, which leads to a short service life of the flashing and affects its waterproof performance.

Utility model content

In order to improve the structural strength and service life of flashing, the present application provides a prefabricated concrete block for roof flashing.

A roof flashing prefabricated concrete block provided by the application adopts the following technical scheme:

A roof flashing prefabricated concrete block, comprising a first connection part and a second connection part, one side of the first connection part is vertically arranged on one side of the second connection part, the first connection part and the second connection part An arc-shaped concave surface is provided at a connecting inner corner of the second connecting part, and a reinforcing bar frame for supporting is provided in the first connecting part and the second connecting part.

By adopting the above-mentioned technical scheme, during installation, the first connection part is connected with the ground, the second connection part is connected with the wall, and the concrete block covers the joint between the wall and the ground, reducing rainwater from both sides. Possibility of infiltration at the seams of the operator. The arc-shaped concave surface makes there is no dead angle at the inner corner of the first connecting part and the second connecting part, which reduces the possibility of rainwater accumulating from the inner corner of the first connecting part and the second connecting part, and helps to extend the length of the concrete life of the block. The reinforcement frame supports the first connection part and the second connection part, thereby improving the structural strength of the concrete block. Through the mutual cooperation of the first connection part, the second connection part and the reinforcement frame, the waterproofing of the inner corner of the roof is realized, and the strength and service life of the flashing structure are improved.

Optionally, a plurality of water guiding grooves are provided on the arc-shaped concave surface, the plurality of water guiding grooves are arranged parallel to each other, and the planes of the water guiding grooves are perpendicular to the first connecting portion and the second connecting portion.

By adopting the above technical solution, the smaller water droplets adhering to the arc-shaped concave surface can flow down along the water guide groove under the action of gravity, further reducing the possibility of rainwater accumulating on the arc-shaped concave surface.

Optionally, a waterproof coating is provided on the curved concave surface.

By adopting the above technical solution, the setting of the waterproof coating improves the waterproofness of the concrete block and helps to prolong the service life of the concrete block.

Optionally, the reinforcement frame includes connecting bent bars and connecting straight bars arranged in a staggered manner, and the connecting bent bars are arranged parallel to the arc-shaped concave surface.

By adopting the above technical scheme, the connecting straight rods and connecting curved rods are connected alternately, which improves the impact resistance of the steel bar frame and reduces the possibility of deformation of the steel bar frame.

Optionally, an anti-stick coating is provided on the inner wall of the water guide groove.

By adopting the above technical solution, the setting of the anti-sticking coating reduces the possibility of accumulation of impurities in the water guide groove, and facilitates the cleaning of the curved concave surface.

Optionally, several connection grooves are provided on the side of the first connection part and the second connection part away from the arc-shaped concave surface.

By adopting the above technical solution, when connecting the first connection part and the second connection part with the wall surface and the ground, it is necessary to smear adhesive such as cement on the connection surface. The setting of the connection groove increases the contact area between the connection surface and the adhesive, and helps to enhance the connection strength between the two connection surfaces and the ground and the wall.

Optionally, a weight-reducing chamfer is provided along the length direction at the male corner of the connection between the first connection part and the second connection part.

By adopting the above technical scheme, the setting of weight-reducing chamfers reduces the use of concrete raw materials while ensuring the waterproof performance of the concrete block, and also reduces the quality of the concrete block, which is convenient for workers to carry.

Optionally, a water guiding slope is provided on a side of the second connecting portion away from the first connecting portion.

By adopting the above technical solution, the setting of the water guiding slope guides the rainwater, reducing the possibility of water accumulation at the top of the second connecting portion.

In summary, the present application includes at least one of the following beneficial technical effects:

1. Through the mutual cooperation of the first connection part, the second connection part and the steel frame, the waterproofing of the inner corner of the roof is realized, which has the effect of improving the strength and service life of the flashing structure;

2. The setting of the connection groove increases the contact area between the connection surface and the adhesive, which helps to enhance the connection strength between the two connection surfaces, the ground and the wall;

3. The setting of the water guiding slope guides the rainwater, reducing the possibility of water accumulation at the top of the first connecting part.

Description of drawings

Fig. 1 is a schematic structural view of a prefabricated concrete block for roof flashing according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram for embodying a connection structure between a roof flashing prefabricated concrete block and a wall in an embodiment of the present application.

Fig. 3 is a partial sectional view for embodying the reinforcement frame in the embodiment of the present application.

Explanation of Reference Signs: 1. First connecting part; 2. Second connecting part; 3. Steel bar frame; 31. Connecting straight rod; 32. Connecting curved rod; 4. Arc-shaped concave surface; Coating; 7. Anti-stick coating; 8. Water guide slope; 9. Weight-reducing chamfer; 10. Connecting groove; 11. Flattening.

Detailed ways

The present application will be described in further detail below in conjunction with accompanying drawings 1-3. An embodiment of the present application provides a prefabricated concrete block for roof flashing, which has the effect of improving the strength and service life of the flashing structure.

Referring to FIGS. 1-3 , a prefabricated concrete block for roof flashing includes an integrally formed first connection part 1 and a second connection part 2 , and the first connection part 1 and the second connection part 2 are jointly provided with a reinforcement frame 3 . One side of the first connecting part 1 is vertically arranged on one side of the second connecting part 2 , and an arc-shaped concave surface 4 is provided along the length direction at the inner corner of the first connecting part 1 and the second connecting part 2 . Several water guiding grooves 5 are arranged on the arc-shaped concave surface 4 , and the plane where the water guiding grooves 5 are located is perpendicular to the first connecting part 1 and the second connecting part 2 . A waterproof coating 6 is coated on the curved concave surface 4 , and an anti-sticking coating 7 is coated in the gutter 5 .

Referring to Figures 1-3, when the concrete block is made, the reinforcement frame 3 is placed in the mold for pouring, and the concrete slurry is poured into the mold for casting. When installing the concrete block, the first connecting part 1 is connected to the ground, the second connecting part 2 is connected to the wall, and the first connecting part 1 and the second connecting part 2 are connected between the wall and the ground. The seams are covered to reduce the possibility of moisture seeping through the seams. The arc-shaped concave surface 4 prevents joints and dead angles at the inner corners of the first connection part 1 and the second connection part 2, which reduces the possibility of water accumulation at the joints and helps to improve the waterproofness of the concrete block. After finishing the installation of the concrete block, the screed plate 11 is installed on the ground, one side of the screed plate 11 is connected with the side of the second connecting portion 2 away from the first connecting portion 1, and the screeding plate 11 is flush with the first connecting portion 1, The hygienic dead angle of the concrete block is reduced.

Referring to Fig. 1 and Fig. 3, the steel frame 3 supports the concrete block, which improves the impact resistance and structural strength of the concrete block. Smaller drops of water sticking to the arc-shaped concave surface 4 flow down under the action of gravity and the diversion of the water-guiding groove 5 , reducing the possibility of water accumulation on the arc-shaped concave surface 4 . The waterproof coating 6 generally adopts waterproof materials such as polyurethane, which further improves the waterproof performance of the concrete block. The setting of the anti-stick coating 7 reduces the possibility of impurities adhering to the inner wall of the gutter 5, and facilitates the cleaning of the concrete block by the operator.

Referring to FIG. 3 , the reinforcement frame 3 includes a number of connecting straight rods 31 and connecting curved rods 32 . Since the connecting straight rods 31 and the connecting curved rods 32 are interlaced to form a network, the structural strength of the concrete block is further improved and the service life of the concrete block is extended.

Referring to Fig. 1 , the side of the second connecting part 2 away from the first connecting part 1 is provided with a water guiding slope 8, and the vertical section of the second connecting part 2 is along the direction away from the first connecting part 1 and the second connecting part 2. The direction of the angle gradually decreases. The water guiding slope 8 guides the rainwater, reducing the possibility of rainwater accumulating at the top of the second connecting portion 2 .

Referring to Fig. 1, the connecting male corner of the first connecting part 1 and the second connecting part 2 is provided with a weight-reducing chamfer 9 along the length direction. Raw material usage. In addition, the setting of the weight-reducing chamfer 9 also reduces the quality of the concrete block, making it convenient for the operator to carry it.

Referring to FIG. 3 , several connection grooves 10 are opened on the connection surfaces of the first connection part 1 and the second connection part 2 with the roof. When the concrete block is connected to the wall surface and the ground, it is necessary to coat the adhesive for bonding on the connecting surface, and the setting of the connecting groove 10 increases the contact area between the connecting surface and the adhesive. It helps to enhance the connection strength between the first connection part 1 and the second connection part 2 .

The implementation principle of a roof flashing prefabricated concrete block in the embodiment of the present application is: connect the first connecting part 1 to the ground, connect the second connecting part 2 to the wall, and connect the first connecting part 1 to the second Part 2 jointly shields the joint between the wall surface and the ground, reducing the possibility of moisture infiltration from the joint. The arc-shaped concave surface 4 prevents seams and dead angles at the inner corners of the connection between the first connecting part 1 and the second connecting part 2, reducing the possibility of water accumulation at the joints. The arrangement of the reinforcement frame 3 improves the impact resistance and structural strength of the concrete block. The arrangement of the water guide groove 5 reduces the possibility of water accumulating on the arc-shaped concave surface 4 . The setting of the waterproof coating 6 further improves the waterproof performance of the concrete block. The setting of the anti-stick coating 7 reduces the possibility of impurities adhering to the inner wall of the gutter 5 . The water guiding slope 8 guides the rainwater, reducing the possibility of rainwater accumulating at the top of the second connecting portion 2 .

All of the above are preferred embodiments of the application, and are not intended to limit the protection scope of the application. Therefore, all equivalent changes made according to the structure, shape, and principle of the application should be covered by the protection scope of the application. Inside.

Claims (8)

1. The utility model provides a roofing flashing precast concrete piece which characterized in that: including first connecting portion (1) and second connecting portion (2), one side of first connecting portion (1) set up perpendicularly in one side of second connecting portion (2), first connecting portion (1) with the connection reentrant corner department of second connecting portion (2) is provided with arc concave surface (4), first connecting portion (1) with be provided with in the middle of second connecting portion (2) and be used for supporting bar frame (3).

2. A roof flashing precast concrete segment according to claim 1, characterized in that: a plurality of water guide grooves (5) are formed in the arc-shaped concave surface (4), the water guide grooves (5) are arranged in parallel, and the plane of the water guide grooves (5) is perpendicular to the first connecting portion (1) and the second connecting portion (2).

3. A roof flashing precast concrete segment according to claim 2, characterized in that: the arc-shaped concave surface (4) is provided with a waterproof coating (6).

4. A roof flashing precast concrete segment according to claim 3, characterized in that: the steel bar frame (3) comprises connecting bent rods (32) and connecting straight rods (31) which are arranged in a staggered mode, and the connecting bent rods (32) and the arc-shaped concave surfaces (4) are arranged in parallel.

5. A roof flashing precast concrete segment according to claim 4, characterized in that: an anti-sticking coating (7) is arranged on the inner wall of the water guide groove (5).

6. A roof flashing precast concrete segment according to claim 5, characterized in that: one side of the first connecting part (1) and one side of the second connecting part (2) deviating from the arc-shaped concave surface (4) are provided with a plurality of connecting grooves (10).

7. The roof flashing precast concrete segment of claim 6, wherein: and a weight-reducing chamfer (9) is arranged at the joint external corner of the first connecting part (1) and the second connecting part (2) along the length direction.

8. A roof flashing precast concrete segment according to claim 7, characterized in that: one side of the second connecting part (2) far away from the first connecting part (1) is provided with a water guide inclined plane (8).