A double-ribbed gypsum board, a sub-wall body and an assembled gypsum board wall body

The design of double-ribbed gypsum board solves the problems of inadequate pressing and loose riveting of the ribs in grooved gypsum board, realizing a stable and lightweight prefabricated gypsum board wall, and ensuring the verticality and mechanical strength of the wall.

CN224468651UActive Publication Date: 2026-07-07CHINA UNIV OF GEOSCIENCES (WUHAN)

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA UNIV OF GEOSCIENCES (WUHAN)
Filing Date
2025-07-29
Publication Date
2026-07-07

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Abstract

The utility model relates to the related technical field of gypsum board and wall body, concretely is a kind of double-rib strip gypsum board, child wall body and fabricated gypsum board wall body.A kind of double-rib strip gypsum board, gypsum board body, wide rib and narrow rib are composed, the wide rib and the narrow rib are respectively arranged in the two sides of the gypsum board body, and with the gypsum board body integrally formed production, wherein, the thickness of gypsum board body is 30mm, the width of the wide rib is 100mm, the thickness is 20mm, the width of the narrow rib is 50mm, the thickness is 20mm.Compared with the existing gypsum board wall body, the double-rib strip gypsum board of the utility model, strong nail force, can effectively make two pieces of double-rib strip gypsum board, rib top each other riveting, avoid the problem that gypsum board riveting is not firm, and wall body structure is not stable.
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Description

Technical Field

[0001] This utility model relates to the technical field of gypsum board and wall, specifically to a double-ribbed gypsum board, a sub-wall, and a prefabricated gypsum board wall. Background Technology

[0002] Prefabricated partition walls are a type of wall material and construction technology that uses screws and riveting for installation and employs a dry construction method. The most common wall material on the market is gypsum board, and the resulting wall is a "light steel keel-gypsum board wall," meaning a light steel keel frame is first erected, and then the gypsum board is riveted to the frame to form the wall. Although this type of wall is widely used, it has drawbacks such as the low mechanical strength of gypsum board, low wall strength, and the need for a keel as a framework. Therefore, this type of wall is generally used as a temporary partition wall and is not suitable for permanent partition walls.

[0003] To address the shortcomings of light steel keel-paper-faced gypsum board walls, Chinese Utility Model Patent 202422556702.X (An Integrated Molded Grooved Gypsum Board and Prefabricated Gypsum Board Wall) proposes an integrated grooved gypsum board. Using this type of gypsum board, a keel-free wall is constructed through a method of arranging the gypsum boards facing each other in a staggered manner and securing them with self-tapping screws. Specifically, a first half of the wall is constructed, followed by a second half opposite it, together forming a complete wall. The first half of the wall consists of several grooved gypsum boards arranged horizontally, with adjacent boards fixed together by self-tapping screws. The second half of the wall also consists of several grooved gypsum boards, also arranged horizontally, but offset from the first half by 1 / 2, with its central portion fixed to the ribs of the first half's grooved gypsum board using self-tapping screws. In addition, in order to construct a partition wall with a standard thickness of 100mm, and at the same time ensure that the strength of the gypsum board meets the requirements of the wall, the thickness of the gypsum board itself is generally 30mm, the thickness of the ribs is generally 40mm, and the width is generally 50mm. When building the wall, the ribs of the gypsum board on one side of the wall are aligned with the center of the gypsum board itself on the other side of the wall, which is exactly 100mm, thus achieving the 100mm wall thickness requirement.

[0004] However, in actual production and engineering applications, the aforementioned Chinese utility model patent 202422556702.X has some shortcomings: (1) According to the grooved gypsum board system of this utility model, the thickness of the main body of the gypsum board is generally 30mm, and the thickness of the ribs is 40mm. In the pressing and molding production, it is difficult to press out ribs with a thickness of 40mm using a conventional ceramic brick press. At the same time, it is also easy to have insufficient gypsum board powder at the ribs and a smaller compression rate than the main body, which ultimately results in a smaller density, lower strength, and weaker nail holding force at the ribs than the main body, making it impossible to rivet and fix the grooved gypsum board on the opposite side; (2) In the construction design scheme, the first half of the wall is constructed first, and then the center part of the grooved gypsum board of the second half of the wall is accurately riveted to the ribs of the grooved gypsum board of the first half of the wall. However, in actual construction, due to installation errors, the center line of the gypsum board of the second half of the wall cannot be accurately aligned with the ribs of the gypsum board of the first half of the wall. This results in the self-tapping screws being unable to accurately rivet the gypsum board of the second half of the wall onto the gypsum board ribs of the first half of the wall, which easily leads to rivet gaps. Ultimately, this results in the gypsum board rivet connection between the first and second half of the wall being weak and the wall structure being unstable. (3) During the wall construction process, since the first half of the wall is built first and then the second half of the wall is built on the opposite side, the first half of the wall, lacking the synchronous and timely top support of the second half of the wall, is prone to deformation. Consequently, the wall that is finally built is also prone to deformation, and the verticality of the wall surface and the verticality of the facade (generally required to be less than 3mm) exceed the standard, resulting in unqualified wall quality.

[0005] Of course, modifying Chinese utility model patent 202422556702.X to a 50mm thick, ribless flat gypsum board could solve the above problems. However, the constructed wall would become a solid wall. In addition, the density of pressed gypsum board is generally 1.7-1.8 tons / cubic meter, which would significantly increase the weight of the solid wall, exceeding the weight requirements of lightweight walls and not conforming to the development trend of lightweight walls.

[0006] In summary, based on addressing the shortcomings of light steel keel-paper-faced gypsum board walls, further developing grooved gypsum boards that are easier to industrialize and produce, and prefabricated gypsum board walls that are more convenient for actual engineering construction, is the research and development direction for gypsum partition walls. Utility Model Content

[0007] The purpose of this utility model is to provide a double-ribbed gypsum board, a sub-wall, and a prefabricated gypsum board wall to solve the problems of poor rib pressing, low strength, voids and weak fastening, and unstable wall structure that are common in the prior art.

[0008] A double-ribbed gypsum board is composed of a gypsum board body, wide ribs and narrow ribs. The wide ribs and the narrow ribs are respectively disposed on both sides of the gypsum board body and integrally formed with the gypsum board body. The wide ribs are 100mm wide and 20mm thick, and the narrow ribs are 50mm wide and 20mm thick.

[0009] Furthermore, the lengths of the wide ribs and the narrow ribs are the same as the length of the gypsum board body; the width of the double-rib gypsum board is 300mm~900mm, and the length is the same as the height of the proposed wall.

[0010] A sub-wall includes two double-ribbed gypsum boards arranged facing each other, wherein the wide rib of one of the double-ribbed gypsum boards abuts against the narrow rib of the other double-ribbed gypsum board, and the two double-ribbed gypsum boards are fixed by a first fastener.

[0011] Furthermore, the inner side of the wide rib of one of the double-ribbed gypsum boards is flush with the inner side of the narrow rib of another double-ribbed gypsum board facing each other, and the two double-ribbed gypsum boards are staggered by 50mm. The wide rib of the double-ribbed gypsum board and the narrow rib of the double-ribbed gypsum board facing each other are fixed together by the first fastener.

[0012] Furthermore, the first fastener is a self-tapping screw, and the self-tapping screw has a diameter of 4mm and a length of 100mm.

[0013] A prefabricated gypsum board wall is composed of sub-walls as described above, arranged sequentially in a horizontal direction. Adjacent sub-walls are connected by corresponding wide ribs and fixed by a second fastener.

[0014] Furthermore, the second fastener is a self-tapping screw, and the self-tapping screw has a diameter of 4mm and a length of 100mm.

[0015] The beneficial effects of the technical solution provided by this utility model are:

[0016] (1) The rib thickness of the grooved gypsum board in Chinese Utility Model No. 202422556702.X is 40mm. In comparison, the rib thickness of the double-ribbed gypsum board of this utility model is 20mm, which is reduced by half. Using the existing conventional ceramic brick press and its pressing and molding technology, double-ribbed gypsum boards with the same density and mechanical strength as the ribs and the body can be pressed out. Moreover, the nail holding force is strong, and two opposing double-ribbed gypsum boards with their ribs touching can be effectively riveted together.

[0017] (2) During the construction of the wall, two opposing double-ribbed gypsum boards form a sub-wall. As the sub-walls are repeatedly constructed, the length of the wall is extended, eventually forming a complete wall. That is, the half wall standing on the front and the half wall standing on the back are constructed simultaneously and synchronously, instead of constructing the first half wall first and then the second half wall as in Chinese Utility Model 202422556702.X. Therefore, there is no obstruction of vision, and the opposing double-ribbed gypsum boards can be easily aligned and riveted at the ribs without any gaps in the riveting.

[0018] (3) Same as (2), during the construction of the wall, the half wall standing on the front and the half wall standing on the back are built at the same time and synchronously. Therefore, the double rib gypsum boards that are facing each other and standing opposite each other support each other, making it easy to adjust the verticality, ensuring that the wall does not deform and meets the wall flatness quality requirements.

[0019] (4) In the wall structure described in Chinese Utility Model No. 202422556702.X, the grooved gypsum board on one side of the wall and the grooved gypsum board on the other side are arranged in a 1 / 2 staggered manner. That is, the ribs of one side of the grooved gypsum board support the center of the body of the other side of the grooved gypsum board. That is, the ribs and the center of the body are riveted together. In the wall structure of this utility model, the double rib gypsum boards on both sides are supported by the ribs. That is, the ribs are riveted together. This makes the support strength between the double rib gypsum boards standing opposite each other greater and the ribs more firmly riveted together. In addition to the beneficial effects of (1) and (2) above, the wall structure is finally more solid and stable.

[0020] (5) Compared with the existing light steel keel-paper-faced gypsum board wall, the prefabricated gypsum board wall of this utility model does not require the use of light steel keel materials, does not require keel installation, and the double-rib gypsum board and its wall have greater mechanical strength, and the wall has higher verticality and stability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the double-ribbed gypsum board of this utility model;

[0022] Figure 2 This is a schematic diagram of the sub-wall structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the prefabricated gypsum board wall structure of this utility model. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to embodiments, so that those skilled in the art can implement it based on the description.

[0025] It should be noted that, unless otherwise specified, the experimental methods described in the following implementation plan are all conventional methods; and the materials described are all commercially available unless otherwise specified.

[0026] like Figure 1 As shown, a double-ribbed gypsum board is composed of a gypsum board body 100, wide ribs 101, and narrow ribs 102. The wide ribs 101 and the narrow ribs 102 are respectively disposed on both sides of the gypsum board body 100 and integrally formed with the gypsum board body 100. The wide ribs 101 have a width of 100 mm and a thickness of 20 mm, and the narrow ribs 102 have a width of 50 mm and a thickness of 20 mm.

[0027] In this utility model, the materials of the gypsum board body 100, wide ribs 101, and narrow ribs 102 are the same as those used in the grooved gypsum board body and ribs in Chinese Utility Model Patent 202422556702.X. The double-ribbed gypsum board 200 of this utility model is also formed by one-time pressing. Preferably, as a specific embodiment of the double-ribbed gypsum board 200 of this utility model, the lengths of the gypsum board body 100 and the ribs are the same; the width of the double-ribbed gypsum board 200 is 300mm~900mm, and the length is the same as the height of the proposed wall. The thickness of the double-ribbed gypsum board 200 body is 30mm, and the thickness of both the wide ribs and narrow ribs 102 is 20mm. It should be noted that when constructing the wall, the opposing double-ribbed gypsum boards are joined together by the ribs. Therefore, the thickness of the constructed prefabricated gypsum board wall is 100mm (i.e., 30mm + 20mm + 20mm + 30mm).

[0028] Compared to the grooved gypsum board in Chinese Utility Model No. 202422556702.X, the thickness of the ribs in this double-ribbed gypsum board 200 is reduced from 40mm to 20mm, a reduction of half. This rib structure of this thickness is suitable for existing conventional ceramic brick presses and their pressing and molding technology. It can press out double-ribbed gypsum boards with consistent rib density and mechanical strength with the body. Furthermore, the ribs have strong nail-holding power, which can effectively rivet two opposing, abutting double-ribbed gypsum boards together.

[0029] like Figure 2 As shown, a sub-wall of a prefabricated gypsum board wall includes two double-ribbed gypsum boards 200 arranged facing each other, wherein the wide rib 101 of one of the double-ribbed gypsum boards 200 abuts against the narrow rib 102 of the other double-ribbed gypsum board 200 and is offset by 50mm, and the two double-ribbed gypsum boards 200 are fixed by a first fastener 201.

[0030] In this utility model, when two double-ribbed gypsum boards 200 are placed abutting each other, the inner side of the wide rib 101 of one double-ribbed gypsum board 200 is flush with the inner side of the narrow rib 102 of the opposite double-ribbed gypsum board. The two double-ribbed gypsum boards 200 are staggered by 50mm. The wide rib 101 of the double-ribbed gypsum board 200 and the narrow rib 102 of the opposite double-ribbed gypsum board are fixed by the first fastener 201 to form a sub-wall.

[0031] like Figure 3 As shown, a prefabricated gypsum board wall is composed of multiple sub-walls arranged sequentially along the horizontal direction. Adjacent sub-walls are connected by corresponding wide ribs 101 and fixed by a second fastener 202.

[0032] In this utility model, adjacent sub-walls are connected by staggered wide ribs 101 and fixed by a second fastener 202.

[0033] The prefabricated gypsum board wall of this utility model has two double-ribbed gypsum boards 200mm apart supporting each other, which makes it easy to adjust the verticality and ensure that the wall does not deform and meets the wall flatness quality requirements. Moreover, there is no obstruction of view during the construction of the sub-wall, and the relatively vertical double-ribbed gypsum boards can be easily aligned and riveted at the ribs without any gaps in the riveting.

[0034] In one embodiment of this utility model, both the first fixing member 201 and the second fixing member 202 are self-tapping screws, and the diameter of the self-tapping screw is 4mm and the length is 100mm.

[0035] In this invention, the self-tapping screw has the advantages of good fixing effect and low implementation cost.

[0036] To more clearly illustrate the construction scheme of the prefabricated gypsum board wall, assuming the construction workers are standing facing forward and construction begins from their left, the actual construction steps are described below:

[0037] S1. The first double-ribbed gypsum board 200 stands upright with the wide rib 101 on the left and the narrow rib 102 on the right. The second double-ribbed gypsum board 200 stands upright with the back side facing up, with the narrow rib 102 on the left and the wide rib 101 on the right, and stands opposite the first double-ribbed gypsum board 200, offset to the right by 50mm. Self-tapping screws are used to drill and rivet the screws from the two ribs of the first double-ribbed gypsum board 200 to the two ribs of the second double-ribbed gypsum board 200.

[0038] S2. The third double-ribbed gypsum board 200 is erected in the same way as the first double-ribbed gypsum board 200, and is close to the side of the first double-ribbed gypsum board 200 and opposite and abuts the remaining 50mm of the wide rib 101 of the second double-ribbed gypsum board 200. Then, using self-tapping screws, it is riveted to the remaining 50mm of the wide rib 101 of the second double-ribbed gypsum board 200 that is opposite and abuts it.

[0039] S3. The fourth double-ribbed gypsum board 200 is erected in the same way as the second double-ribbed gypsum board 200, and is close to the side of the second double-ribbed gypsum board 200, opposite and abutting the third double-ribbed gypsum board 200, and offset 50mm to the right from the third double-ribbed gypsum board 200. Then, use self-tapping screws to rivet it to the two ribs of the third double-ribbed gypsum board 200 that is opposite and abutting it.

[0040] The erection and riveting method of the fifth double-ribbed gypsum board 200 is the same as that of the third board, and the erection and riveting method of the sixth double-ribbed gypsum board 200 is the same as that of the fourth board. And so on, the width of the wall continues to increase, eventually forming a wall with a thickness of 100mm.

[0041] After the prefabricated gypsum board wall is constructed, the approximately 50mm gap on both sides of the wall can be filled using conventional wall joint filling techniques, such as using crack-resistant cement mortar.

[0042] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A double-ribbed gypsum board, characterized in that, It is composed of a gypsum board body, wide ribs and narrow ribs. The wide ribs and narrow ribs are respectively arranged on both sides of the gypsum board body and integrally formed with the gypsum board body. The wide ribs are 100mm wide and 20mm thick, and the narrow ribs are 50mm wide and 20mm thick.

2. The double-ribbed gypsum board according to claim 1, characterized in that, The lengths of the wide ribs and the narrow ribs are the same as the length of the gypsum board body; the width of the double-rib gypsum board is 300mm~900mm, and the length is the same as the height of the proposed wall.

3. A sub-wall, characterized in that, It includes two double-ribbed gypsum boards as described in claim 2, with the wide rib of one double-ribbed gypsum board abutting the narrow rib of the other double-ribbed gypsum board, and the two double-ribbed gypsum boards are fixed by a first fastener.

4. A sub-wall according to claim 3, characterized in that, The inner side of the wide rib of one of the double-ribbed gypsum boards is flush with the inner side of the narrow rib of another double-ribbed gypsum board facing each other, and the two double-ribbed gypsum boards are staggered by 50mm. The wide rib of the double-ribbed gypsum board and the narrow rib of the double-ribbed gypsum board facing each other are fixed together by the first fastener.

5. A sub-wall according to claim 4, characterized in that, The first fastener is a self-tapping screw, and the self-tapping screw has a diameter of 4mm and a length of 100mm.

6. A prefabricated gypsum board wall system, characterized in that, It is composed of sub-walls as described in claim 5, which are arranged sequentially in the horizontal direction. Adjacent sub-walls are connected by corresponding wide ribs and fixed by a second fastener.

7. A prefabricated gypsum board wall according to claim 6, characterized in that, The second fastener is a self-tapping screw, and the self-tapping screw has a diameter of 4mm and a length of 100mm.