Retractable dividing strip

Abstract

The utility model discloses a retractable dividing strip, relates to the technical field of roof concrete protective layer dividing strips, and solves the problems that the existing roof dividing strip is not firmly fixed, a stress counteracting structure is easy to damage to cause leakage or failure, and the bearing capacity of a vertical supporting structure is limited. The utility model provides a retractable dividing strip which comprises an upper strip body, a vertical supporting structure, an elastic component and a lower strip body. The vertical supporting structure comprises two vertical strip bodies, the two vertical strip bodies are arranged in parallel, and the vertical strip bodies are fixedly connected between the upper strip body and the lower strip body and are of a symmetrical structure; and the elastic part is filled between the two vertical bar bodies. The upper strip body, the vertical strip body and the lower strip body are all made of aluminum alloy materials, and the elastic component is made of PE foam cotton. The telescopic structure designed by the utility model can counteract stress and enhance the supporting force and the fixing effect of the dividing strip, and the structural design is attractive and practical.

Description

A retractable divider Technical Field

[0001] This utility model relates to the technical field of roof concrete protective layer separator strips, specifically to a retractable separator strip. Background Technology

[0002] In construction engineering, especially during the construction and use of concrete structures, factors such as temperature changes, concrete shrinkage and creep, and uneven foundation settlement can cause deformation and stress in the structure. If these deformations and stresses are not properly released and controlled, they can easily lead to cracks and damage in the concrete structure, affecting its durability, waterproofing, and functionality.

[0003] In recent years, researchers have designed roof partition strips to address the aforementioned problems. For example, Chinese patent document 202221097814.8 discloses a roof concrete protective layer partition strip. This type of partition strip eliminates the need for skip-construction work, shortening the construction period and reducing the risk of roof leakage through the partition joints. However, the bottom edge of this partition strip is V-shaped. This V-shaped structure makes it difficult to fix the partition strip vertically to the base layer alone. It requires the same grade of concrete to be piled up on both sides of the partition strip for fixation before concrete pouring. This fixing method is prone to instability during construction, leading to the partition strip becoming crooked or damaged, resulting in uneven partition lines, a tendency to tip over during construction, and even surface cracking and other quality problems. Chinese patent document 202420772137.8 discloses a prefabricated rigid roof partition strip structure. In this structure, a first prestressed arc-shaped PVC plate and a second prestressed arc-shaped PVC plate are connected between the upper parts of two vertical panels to counteract building deformation and stress accumulation. However, PVC has a low modulus of elasticity (less than 3 GPa), making it unsuitable for curved load-bearing components. Furthermore, in this structural design, the base plate and vertical plates are made of aluminum profiles or stainless steel, whose coefficients of thermal expansion are much lower than PVC. This results in significant deformation differences under sunlight or temperature variations, easily leading to cracks at the joints and moisture penetration, ultimately causing the roof waterproofing layer to fail and preventing the formation of a durable prestressed state. Chinese patent document 202422900379.3 describes an I-shaped separator structure. In this structure, a first elastic component and a second elastic component are respectively bonded to the sidewalls at both ends of the vertical strip, utilizing these elastic components to address the structural weakness. However, in this design, all elastic components are exposed to the outside, which can easily lead to their damage during construction and material handling, thus offsetting the shrinkage of the elastic components. At the same time, the elastic components are affected by the external environment, ultimately resulting in a shortened service life. In addition, the structure has only one vertical bar, which has limited load-bearing capacity. When the load distribution is uneven or encounters a sudden load, it is easy to cause structural instability or local damage due to stress concentration, making it difficult to meet the safety and reliability requirements under complex working conditions.

[0004] To address the aforementioned issues, a new type of stable and retractable partition strip was developed to provide an efficient solution for standardized and refined construction of roofing projects. Summary of the Invention

[0005] To address the problems of existing roof partition strips being poorly fixed, easily damaged structures used for stress compensation leading to leakage or failure, and limited load-bearing capacity of vertical support structures, this utility model proposes a retractable partition strip. The technical solution of this utility model is as follows:

[0006] A retractable divider includes an upper strip body, a vertical support structure, an elastic component, and a lower strip body; the vertical support structure includes two vertical strip bodies, which are arranged in parallel and are fixedly connected between the upper strip body and the lower strip body, forming a symmetrical structure; the elastic component (3) is embedded and solidified between the two vertical strip bodies (2) in a filling manner.

[0007] Furthermore, the upper strip, vertical strip, and lower strip are all made of aluminum alloy, and the elastic component is made of PE foam.

[0008] Furthermore, the width of the upper strip is greater than the width of the lower strip, and the width of the upper strip is 15mm.

[0009] Furthermore, the width of the lower strip is 20mm.

[0010] Furthermore, the elastic component is 5mm thick, and the sum of the thicknesses of the two vertical strips is less than 10mm; the height of the separator can be adjusted according to the thickness of the on-site waterproof protective layer concrete, and is usually 40-50mm.

[0011] Compared with existing technologies, this utility model solves the problems of unstable fixing of existing roof partition strips, easy damage to the stress-compensating structure leading to leakage or failure, and limited load-bearing capacity of the supporting structure. The specific beneficial effects are as follows:

[0012] 1. Stress-counterweight design: This invention fills the space between the two vertical strips with PE foam. The resilience and shrinkage properties of the PE foam help to counteract the deformation of the aluminum alloy sidewalls caused by concrete pouring and the thermal expansion and contraction of concrete due to external temperature changes. This avoids situations where shrinkage caused by external construction factors is offset. Simultaneously, the two vertical strips serve as a vertical support structure to enhance support, effectively solving problems such as bending and uneven lines during concrete pouring caused by the low strength of traditional separator strips.

[0013] 2. Enhanced fixing effect: This utility model adopts a wide (20mm) lower strip structure, which can effectively bond with cement mortar, prevent the displacement and skewing of the separator strip during concrete pouring, prevent concrete cracks, and provide a positioning accuracy guarantee and structural stability foundation for subsequent roof construction processes.

[0014] 3. Aesthetically pleasing and practical structural design: This utility model ensures that the upper strip completely covers the elastic components, enhancing the overall structural aesthetics while cleverly protecting the elastic components and preventing roof leaks and damage. This separator strip can be installed in one go, making it economical, practical, and suitable for large-scale applications. Attached Figure Description

[0015] Figure 1 is a cross-sectional view of the structure of the retractable divider;

[0016] Figure 2 shows a detailed view of the vertical support structure and elastic components;

[0017] Explanation of reference numerals in the attached diagram: 1. Upper strip; 2. Vertical strip; 3. Elastic component; 4. Lower strip. Detailed Implementation

[0018] To make the technical solution of this utility model clearer, the technical solution in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. It should be noted that the following embodiments are only used to better understand the technical solution of this utility model and should not be construed as limiting this utility model.

[0019] Example 1.

[0020] This embodiment provides a retractable divider strip, the structure of which is shown in Figures 1-2. It includes an upper strip body 1, a vertical support structure, an elastic component 3, and a lower strip body 4. The vertical support structure comprises two vertical strip bodies 2, arranged parallel to each other and fixedly connected between the upper strip body 1 and the lower strip body 4, forming a symmetrical structure. The elastic component 3 fills the space between the two vertical strip bodies 2. This design achieves a retractable divider strip structure to address the issues of compression deformation of the aluminum alloy sidewalls during concrete pouring and the thermal expansion and contraction of concrete due to external temperature changes. Simultaneously, the two vertical strip bodies 2 enhance the support force of the vertical support structure, and the effective bonding between the lower strip body 4 and cement mortar strengthens the fixation effect of the divider strip. This divider strip structure is aesthetically pleasing, practical, and suitable for large-scale applications.

[0021] Specifically, the upper strip 1 is 15mm wide; the lower strip 4 is 20mm wide. The wide structure of the lower strip 4 is conducive to fixing the partition strip during construction and preventing the partition strip from shifting. The elastic component 3 is 5mm thick, and the sum of the thicknesses of the two vertical strips 2 is less than 10mm. This ensures that the upper strip 1 can completely cover the elastic component 3, which not only ensures the overall structural aesthetics but also avoids roof leaks and damage to the elastic component 3.

[0022] The height of the separator strip can be adjusted according to the thickness of the on-site waterproof protective concrete layer, typically 40-50mm. The upper strip 1, vertical strip 2, and lower strip 4 are all made of aluminum alloy. The elasticity and shrinkage function of the elastic component 3 are used to prevent deformation of the vertical strip 2 during concrete pouring. The elastic component 3 is made of PE foam, which is a new type of environmentally friendly material with excellent sound insulation, heat insulation, and resilience, as well as being lightweight. The rebound and shrinkage function of this material effectively solves the problem of deformation of the vertical support structure during concrete pouring, while also addressing issues of thermal expansion and contraction and cracking caused by temperature and weather factors.

[0023] In practical applications, a theodolite is first used to ensure that all the dividing strips are on a horizontal line. Then, cement mortar is used to wrap the lower strip 4 of the dividing strip. Cement mortar is poured from a distance of 1 cm from the side of the vertical strip 2 away from the elastic component 3 to ensure that it is effectively bonded to the cement mortar. This prevents the dividing strips from shifting or tilting during the concrete pouring process and provides a guarantee of positioning accuracy and structural stability for the subsequent roof construction process.

[0024] In summary, this utility model effectively solves the problem of compression deformation of the aluminum alloy sidewalls during concrete pouring by utilizing the resilience and shrinkage properties of PE foam; it uses two vertical strips 2 as vertical support structures to enhance the support force, effectively solving the problem of bending and non-linear lines caused by the low strength of traditional divider strips during concrete pouring; and it adopts a wide (20mm) lower strip 4 structure to effectively solve the problem of displacement and skewing of the divider strips during concrete pouring. The structural design of this utility model is aesthetically pleasing and practical, providing a guarantee of positioning accuracy and structural stability for subsequent roof construction processes.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A collapsible divider strip characterized by, It includes an upper strip (1), a vertical support structure, an elastic component (3), and a lower strip (4); the vertical support structure includes two vertical strips (2), which are arranged in parallel and are fixedly connected between the upper strip (1) and the lower strip (4) in a symmetrical structure; the elastic component (3) is embedded and solidified between the two vertical strips (2) in a filling manner.

2. The retractable separator strip according to claim 1, characterized in that, The upper strip (1), vertical strip (2) and lower strip (4) are all made of aluminum alloy, and the elastic component (3) is made of PE foam.

3. The retractable separator strip according to claim 2, characterized in that, The width of the upper strip (1) is greater than the width of the lower strip.

4. The collapsible dunnage of claim 3, wherein, The width of the upper body (1) is 15mm.

5. The collapsible dunnage of claim 4, wherein, The width of the lower strip (4) is 20mm.

6. The retractable separator strip according to claim 1, characterized in that, The elastic component (3) is 5 mm thick, and the combined thickness of the two vertical strips (2) is less than 10 mm.

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