Prefabricated concrete component

Abstract

The utility model discloses a precast concrete member, relates to the technical field of building members, and aims to solve the problem that a gap always exists between a precast stair and a side wall on one side of the precast stair in the mounting process, the precast concrete member is characterized by comprising a stair body, a plurality of steps are arranged on the stair body, a first sliding groove is formed in the kicking face of each step, and a second sliding groove is formed in the kicking face of each step. A first sliding groove is formed in the side face of the step, a second sliding groove is formed in the side face of the step, the first sliding groove is communicated with the second sliding groove, a first baffle is slidably connected into the first sliding groove, a second baffle is slidably connected into the second sliding groove, and the second baffle abuts against the first baffle on the adjacent step. According to the prefabricated concrete component, gaps between the stair body and the wall body are reduced through the arrangement of the structure, the sealing performance and the structural strength of the stair body and the wall body are improved, and it is guaranteed that the prefabricated concrete component has the advantages of being good in practicability and convenient and fast to install.

Description

Technical Field

[0001] This utility model relates to the field of building component technology, and more specifically, to a precast concrete component. Background Technology

[0002] Concrete is the most important material in construction. Structures made primarily of concrete are generally called concrete structures, while structures used to shape concrete structures are called concrete structural components. Precast stairs are a type of precast concrete component.

[0003] Besides being more aesthetically pleasing than cast-in-place stairs, precast stairs also improve construction efficiency, reduce environmental pollution, and the steam curing method ensures the strength of the concrete, improving the quality of the project and effectively reducing potential problems such as substandard quality caused by inconsistent worker skills.

[0004] However, prefabricated stairs are often molded as a single piece, and may need to be fitted to the wall during installation. After the prefabricated stairs are installed, there will be certain cracks between the stairs and the wall. Since the wall may not be flat during construction, the cracks between the stairs and the wall may vary in size, making the filling work inefficient and inconvenient.

[0005] Therefore, a new solution is needed to address this problem. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a precast concrete component to improve the installation efficiency of concrete components.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a precast concrete component includes a staircase body, the staircase body having several steps, a sliding groove 1 being formed on the riser surface of the steps, a sliding groove 2 being formed on the side surface of the steps, the sliding groove 1 being connected to the sliding groove 2, a first baffle being slidably connected in the sliding groove 1, a second baffle being slidably connected in the sliding groove 2, the second baffle abutting against the first baffle on the adjacent step, and when the first baffle and the second baffle extend out of the sliding groove 1 and the sliding groove 2 respectively and abut against the wall, a casting groove is formed between the first baffle, the second baffle, the steps and the wall.

[0008] The present invention is further configured such that the casting groove is filled with concrete.

[0009] The present invention is further configured such that: the opposing surfaces of the first baffle and the sliding groove are both concave and convex surfaces, and are configured to fit together; at least a portion of the first baffle extends into the casting groove.

[0010] The present invention is further configured such that the cross-sections of the second baffle and the second sliding groove are in a continuous wave shape.

[0011] The present invention is further configured such that: the width of the first sliding groove is the same as the width of the first baffle, the width of the second sliding groove is the same as the width of the second baffle, and the first baffle and the second baffle are fixedly connected.

[0012] The present invention is further configured such that both the first baffle and the second baffle are made of PVC material.

[0013] In summary, this utility model has the following beneficial effects: when the several first baffles and second baffles that can be flexibly adjusted come into contact with the wall, they form several casting grooves. By filling the casting grooves with concrete material, the gaps of different sizes formed between the steps and the wall during the installation of the staircase body are filled, thereby filling gaps of different sizes. This makes it more applicable to a wider range of scenarios and more efficient in installation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a top view of the present invention;

[0016] Figure 3 This is a schematic diagram of the sliding groove structure of this utility model;

[0017] Figure 4 This is an exploded view of the present invention.

[0018] In the diagram: 1. Wall; 2. Step; 3. Sliding groove one; 4. First baffle; 5. Second baffle; 6. Sliding groove two; 7. Exterior trim; 8. Casting groove. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] A type of precast concrete component, such as Figure 1 , Figure 3 and Figure 4As shown, the staircase includes a staircase body with several steps 2. A sliding groove 3 is formed on the riser surface of each step 2, and a sliding groove 6 is formed on the side of each step 2. Sliding groove 3 connects to sliding groove 6. A first baffle 4 is slidably connected within sliding groove 3, and a second baffle 5 is slidably connected within sliding groove 6. The second baffle 5 abuts against the first baffle 4 on the adjacent step 2. When the first baffle 4 and the second baffle 5 extend from sliding groove 3 and sliding groove 6 respectively and abut against the wall 1, a casting groove 8 is formed between the first baffle 4, the second baffle 5, the step 2, and the wall 1. During staircase body installation, the gaps of different sizes formed between the step 2 and the wall 1 can be flexibly adjusted by adjusting the first baffle 4 and the second baffle 5 to abut against the wall 1, and filling material can be poured into the casting groove 8 to fill the gaps of different sizes. This method has a wider range of applications and higher installation efficiency.

[0021] like Figure 1 , Figure 3 and Figure 4 As shown, the staircase body consists of several steps 2. A sliding groove 3 is provided on the riser surface of each step 2. A baffle 4 is slidably connected within the sliding groove 3. The cross-sections of the sliding groove 3 and the first baffle 4 are rack-shaped. The first baffle 4 is perpendicular to the ground, and one of its toothed ends is located within the casting groove 8. During casting, the rack-shaped structure of the first baffle 4 increases the connection strength between the filler and the first baffle 4 after the filler has solidified, reducing the possibility of the filler falling off. A second sliding groove 6 is provided on the side wall of the step 2. The second sliding groove 6 is connected to the sliding groove 8. The first groove 3 is connected, and the second sliding groove 6 is set near the bottom of the step 2. The second baffle 5 is slidably connected in the second sliding groove 6, and the cross-sectional shape of the second sliding groove 6 and the second baffle 5 is a continuous wave shape. The wave shape structure has the characteristic of smoothness. When pouring the filling material, the wave-shaped structure of the second baffle 5 can make the filling material flow better, improve the pouring speed and construction efficiency. The preferred filling material in the pouring groove 8 is concrete. Concrete has plasticity and fluidity, and after it solidifies, it has high compressive strength, durability and fire resistance.

[0022] like Figure 2 , Figure 3 and Figure 4As shown, the width of sliding groove 3 is the same as the width of the first baffle 4, and the width of sliding groove 6 is the same as the width of the second baffle 5. The first baffle 4 and the second baffle 5 are fixedly connected. Since sliding groove 3 is on the riser surface of step 2, the fixed connection between the first baffle 4 and the second baffle 5 means that when filling the gap, only the first baffle 4 needs to be slid to drive the second baffle 5 to slide out synchronously, improving the overall construction efficiency. Both the first baffle 4 and the second baffle 5 are made of PVC material. PVC material is commonly used in concrete structures and has the characteristics of being reusable, easy to disassemble, and easy to process. Since the gap between the stair body and the wall 1 is different in size, and the wall surface has a sloping or irregular surface, the easy processing characteristics of PVC material can be used to cut the first baffle 4 and the second baffle 5 according to different scenarios to ensure that the first baffle 4 and the second baffle 5 fit better with the wall 1, which is convenient for pouring and filling the gap.

[0023] The working principle is as follows: When installing the staircase body, first use a straight plate to measure the size of the gap between the side of the staircase body and the wall 1, and make records and marks. Based on the recorded gap data, cut the first baffle 4 and the second baffle 5 on different steps 2 to ensure that the first baffle 4 and the second baffle 5 can fit well with the wall 1 during installation. After the staircase body is installed in the designated position, slide the first baffle 4 and drive the second baffle 5 to abut against the wall 1, forming several pouring grooves 8 between the wall 1 and the staircase body. Finally, fill the pouring grooves 8 with concrete and wait for the concrete to solidify to complete the grouting work. Finally, fix the external decorative parts 7, such as tiles, on the riser and tread of the step 2 to cover the grouting area, achieving the effects of sealing, waterproofing, fireproofing, and aesthetics.

[0024] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A precast concrete construction element comprising a stairway body, characterised in that: The stair body is provided with a plurality of steps (2), the kick surface of the step (2) is provided with a sliding groove one (3), the side surface of the step (2) is provided with a sliding groove two (6), the sliding groove one (3) is communicated with the sliding groove two (6), the first baffle (4) is slidably connected in the sliding groove one (3), the second baffle (5) is slidably connected in the sliding groove two (6), the second baffle (5) is abutted with the first baffle (4) on the adjacent step (2), when the first baffle (4) and the second baffle (5) respectively extend from the sliding groove one (3) and the sliding groove two (6) and abut against the wall body (1), the first baffle (4), the second baffle (5), the step (2) and the wall body (1) form a pouring groove (8).

2. A precast concrete member as defined in claim 1, wherein: The opposite surface of the first baffle (4) and the sliding groove one (3) is a concave-convex surface, and the concave-convex surface is matched, at least a part of the first baffle (4) extends into the pouring groove (8).

3. A precast concrete member as defined in claim 1, wherein: The cross section of the second baffle (5) and the sliding groove two (6) is continuously wavy.

4. A precast concrete member as defined in claim 1, wherein: The groove width of the sliding groove one (3) is same as the width of the first baffle (4), the width of the sliding groove two (6) is same as the width of the second baffle (5), the first baffle (4) is fixedly connected with the second baffle (5).

5. A precast concrete member according to claim 4 wherein: The first baffle (4) and the second baffle (5) are made of PVC material.

6. A precast concrete member as defined in claim 1, wherein: The pouring groove (8) is filled with concrete.

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