Retractable roof dividing strip
By using I-shaped roof dividers made of aluminum alloy and PE foam, the problems of low strength and non-straight installation of traditional dividers have been solved, resulting in improved appearance of concrete construction and enhanced stability of the waterproof layer.
Patent Information
- Application Number
- CN202422900379.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-11-27
AI Technical Summary
In the current construction of roof concrete protective layers, traditional separator strips have low strength, are not installed in straight lines, are prone to weathering, leading to concrete cracks and water leakage problems, and equipment cutting can easily damage the waterproof layer.
The roof divider uses retractable roof dividers, with an upper strip, vertical strip, and lower strip made of aluminum alloy. Combined with the first and second elastic components made of PE foam, it forms an I-shaped structure to ensure straight installation and elastic adaptability to thermal expansion and contraction.
It improves the appearance quality of concrete construction, prevents cracks and leaks, avoids damage caused by thermal expansion and contraction, and enhances the stability of the waterproof layer.
Smart Images

Figure CN223548831U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction technology of concrete protective layer for roofing projects, and specifically to a retractable roof partition strip. Background Technology
[0002] During the construction of the concrete protective layer in roofing projects, in order to prevent the concrete from arching and cracking due to the large seasonal temperature difference and the thermal expansion and contraction of the concrete, the construction of the roof concrete protective layer needs to set up the expansion joints. Specifically, the expansion strips are set in the cutting joints and then poured with concrete.
[0003] However, traditional construction methods for cutting joints in the reinforced concrete protective layer of roof waterproofing often have the following drawbacks: 1. Using pre-made plastic separators, commonly in trapezoidal, hollow T-shaped, and needle-shaped forms; the material itself is low-strength, and after concrete pouring, it is impossible to ensure that the separators are all in a straight line, resulting in an unsightly finish. Furthermore, the plastic material is prone to weathering and damage over time. 2. Cutting joints using equipment after the roof concrete construction is completed: the thickness of the roof waterproof protective layer is generally only 40mm-50mm, and the thickness varies due to manual pouring. Using equipment for joint cutting can easily damage the waterproofing, leading to roof leaks and posing a quality risk. 3. If joints are not cut in the poured concrete, slight expansion and contraction due to temperature and climate can cause roof cracks, affecting the service life of the building.
[0004] Therefore, those skilled in the art urgently need to provide a novel separator to solve the technical problems existing in the prior art. Utility Model Content
[0005] Therefore, the technical problem to be solved by this utility model is to overcome the defects existing in the prior art, thereby providing a retractable roof partition strip.
[0006] A retractable roof divider has an overall I-shaped structure, specifically including: an upper strip body, a lower strip body, a vertical strip body, a first elastic component, and a second elastic component;
[0007] The upper strip, vertical strip, and lower strip are fixedly connected from top to bottom to form a standard I-beam structure.
[0008] The first elastic component and the second elastic component have the same height, and their heights are matched with the height of the vertical strip; the first elastic component and the second elastic component are respectively bonded to the side walls at both ends of the vertical strip;
[0009] The width of the upper strip is greater than or equal to the width of the vertical strip plus the thickness of the first elastic component plus the thickness of the second elastic component.
[0010] Preferably, the first elastic component and the second elastic component are made of PE foam material.
[0011] Preferably, the upper strip, the vertical strip, and the lower strip are all made of aluminum alloy.
[0012] Preferably, the width of the top strip is 20mm.
[0013] Preferably, the thickness of the first elastic component is 5 mm;
[0014] The thickness of the second elastic component is 5mm.
[0015] Preferably, the overall structure is symmetrical about the vertical strip.
[0016] The technical solution of this utility model has the following advantages:
[0017] The retractable roof divider provided by this utility model eliminates problems such as line bending and non-linearity caused by differences in strength due to materials and during concrete pouring, resulting in an improved appearance after completion. Furthermore, it allows for one-time installation, accommodating the thermal expansion and contraction of the concrete to prevent cracking and avoids waterproofing damage and roof leaks caused by later cutting. Attached Figure Description
[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the first type of traditional divider structure;
[0021] Figure 3 This is a schematic diagram of the second type of traditional divider structure;
[0022] Figure 4 This is a schematic diagram of the second type of traditional separator structure.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1-Upper strip; 2-First elastic component; 3-Vertical strip; 4-Second elastic component; 5-Lower strip. Detailed Implementation
[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0029] Example 1
[0030] like Figure 1 This embodiment discloses a retractable roof divider strip, the overall structure of which is an I-shaped structure, specifically including: an upper strip body 1, a lower strip body 5, a vertical strip body 3, a first elastic component 2, and a second elastic component 4;
[0031] The upper strip 1, the vertical strip 3, and the lower strip 5 are fixedly connected from top to bottom to form a standard I-shaped structure.
[0032] The first elastic component 2 and the second elastic component 4 have the same height, and their heights are adapted to the height of the vertical strip. The first elastic component 2 and the second elastic component 4 are respectively bonded to the side walls at both ends of the vertical strip 3.
[0033] Specifically:
[0034] The first elastic component 2 and the second elastic component 4 are made of PE foam. PE foam is a new type of environmentally friendly material with good sound insulation, heat insulation, resilience, adjustable hardness and thickness, and light weight. The resilience and shrinkage properties of this material are used to solve the problems of thermal expansion and contraction and cracking in concrete caused by temperature and weather factors.
[0035] The upper strip 1, the vertical strip 3, and the lower strip 5 are all made of aluminum alloy.
[0036] The width of the top band is 20mm.
[0037] The thickness of the first elastic component 2 is 5mm;
[0038] The thickness of the second elastic component 4 is 5mm.
[0039] The overall structure is symmetrical about the vertical bar 3.
[0040] It should be noted that in practical applications, the height of the vertical strip 3 is adjusted according to the thickness of the on-site waterproof protective layer concrete, and the general height is 40mm.
[0041] like Figure 2 The image shows the structure of the first type of traditional divider. Figure 2 The top surface of the upper horizontal bar needs to retain the cut and glued structure to ensure the horizontality and aesthetics of the top surface; however, in this embodiment, to ensure aesthetics and a one-time installation effect, the width of the upper bar 1 is set to 20mm, and the width of the upper bar 1 is ≥ the width of the vertical bar 3 + the thickness of the first elastic component 2 + the thickness of the second elastic component 4; the design of the upper bar 1 in this embodiment is compared to... Figure 2 The structure shown is more aesthetically pleasing and can achieve a smooth, one-time installation.
[0042] like Figure 2-4 The three traditional separators shown all have internal cavity structures and are made of plastic. With prolonged use, the pressure difference between the internal cavity and the external concrete causes the plastic material to crack, leading to separator failure. Therefore, this embodiment uses an aluminum alloy with an external elastic element to overcome the drawbacks caused by the internal and external pressures and the material itself.
[0043] As an improved implementation method, the width of both the lower strip 5 and the upper strip 1 is set to 20mm. The lower strip 5 serves to fix the overall device during construction, mainly to stabilize it and prevent displacement. Before construction, the lower strip 5 is wrapped with cement mortar, and cement mortar is poured in from one centimeter away from the side of the vertical strip 3. The lower strip 5 is effectively bonded to the cement mortar, preventing displacement and skewing of the separator strip during concrete pouring.
[0044] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A retractable roof divider, characterized in that, The overall structure is an I-shaped structure, specifically including: upper strip (1), lower strip (5), vertical strip (3), first elastic component (2) and second elastic component (4); The upper strip (1), the vertical strip (3) and the lower strip (5) are fixedly connected from top to bottom to form an integrally formed I-structure; The first elastic component (2) and the second elastic component (4) have the same height, and their heights are compatible with the height of the vertical strip. The first elastic component (2) and the second elastic component (4) are respectively bonded to the side walls at both ends of the vertical strip (3). The width of the upper strip (1) is greater than or equal to the width of the vertical strip (3) plus the thickness of the first elastic component (2) plus the thickness of the second elastic component (4).
2. The retractable roof divider according to claim 1, characterized in that, The first elastic component (2) and the second elastic component (4) are made of PE foam.
3. The retractable roof divider according to claim 1, characterized in that, The upper strip (1), vertical strip (3) and lower strip (5) are all made of aluminum alloy.
4. The retractable roof divider according to claim 1, characterized in that: The width of the upper body (1) is 20mm.
5. The retractable roof divider according to claim 1, characterized in that: The thickness of the first elastic component (2) is 5mm; The second elastic component (4) has a thickness of 5 mm.
6. The retractable roof divider according to claim 1, characterized in that, The overall structure is symmetrical about the vertical bar (3).
Citation Information
Cited By
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