A low grammage glass fiber mat
By designing metal sheets and limiting post structures on the fiberglass mat and combining them with specific materials, the problems of weak adhesion and heavy weight of the fiberglass mat were solved, enabling the application of low-weight and highly stable fiberglass mats, and enhancing the bonding stability and thermal insulation performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU CHANGHAI COMPOSITE MATERIALS CO LTD
- Filing Date
- 2025-09-03
- Publication Date
- 2026-07-21
Smart Images

Figure CN224528219U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of glass fiber mat technology, and in particular to a low basis weight glass fiber mat. Background Technology
[0002] Fiberglass mat is a sheet-like composite material reinforcement made by bonding continuous or chopped filaments together with chemical adhesives or mechanical action. It is mainly used in fiberglass, resin-based composite materials and stone paneling. Its raw materials include nonwoven crushed glass fibers and resin adhesives.
[0003] In the prior art, Chinese patent CN222291207U discloses an alkali-resistant fiberglass mat. The hydrophobic layer coated on the outer periphery of the rock wool layer can improve the hydrophobicity when the cement and rock wool layer are in contact. In addition, with the aluminum foil layer, the rock wool layer and the fiberglass body can stably provide heat insulation and fire protection functions during the construction process, so that the fiberglass mat can operate stably. However, in practical applications, when using fiberglass mat for a large area of the roof, multiple rolls of fiberglass mat need to be used in combination. After the fiberglass mat is laid, it needs to be fixed with double-sided tape to maintain its relative position. When fixing two fiberglass mats with double-sided tape, the two fiberglass mats need to be manually pressed tightly together. If the bonding time is insufficient, the fiberglass mat is prone to not being firmly bonded. In addition, the existing fiberglass mats used for roofs are relatively thick, which makes the weight of the fiberglass mat heavy, resulting in the fiberglass mat exerting greater pressure on the roof. Therefore, we disclose a low weight fiberglass mat. Utility Model Content
[0004] In view of this, the purpose of this utility model is to propose a low-weight glass fiber mat to solve the problem that the glass fiber mat is not firmly bonded when the bonding time is insufficient.
[0005] To achieve the above objectives, this utility model provides a low-grammage glass fiber mat, comprising a glass fiber mat body, a first metal sheet and a second metal sheet fixedly connected to one side of the glass fiber mat body, the first metal sheet and the second metal sheet being rectangular, a tin foil layer fixedly connected to the other side of the glass fiber mat body, a plurality of first connecting pieces fixedly connected to one side of the first metal sheet, a limiting post fixedly connected to one end of the first connecting piece, a first limiting piece fixedly connected to one end of the limiting post, and second limiting pieces fixedly connected to both ends of the first limiting piece, a plurality of second connecting pieces fixedly connected to one end of the second metal sheet, a connecting hole provided at one end of the second connecting piece, the limiting post being slidably connected within the connecting hole, and the second limiting pieces and the second connecting pieces being movably engaged.
[0006] Preferably, both the first metal sheet and the second metal sheet are L-shaped sheets, and the outer walls of both the first metal sheet and the second metal sheet are coated with an anti-rust coating.
[0007] Preferably, the glass fiber mat body comprises chopped glass fiber water-drawn fibers and polyvinyl alcohol formaldehyde fibers.
[0008] Preferably, the first limiting piece is a V-shaped piece, the second limiting piece is a √-shaped piece, the first limiting piece and the two second limiting pieces form an M-shaped piece, the second limiting pieces are inclined relative to the horizontal plane, and the second limiting pieces are located above the limiting post and the second connecting piece.
[0009] Preferably, the second connecting piece is located above the first connecting piece, and the second connecting piece is movably connected to the glass fiber felt body.
[0010] Preferably, the length and width of the first metal sheet are both smaller than the length and width of the glass fiber felt body, and the tin foil layer completely covers the outer wall of the glass fiber felt body.
[0011] The beneficial effects of this utility model are as follows: In use, the relative positions of the fiberglass felt body, the first metal sheet, and the second metal sheet are fixed. When the two fiberglass felt bodies are attached, the first metal sheet and the second metal sheet are attached. The first metal sheet fixes the first connecting piece, which in turn fixes the first limiting piece through the limiting post, thereby fixing the position of the second limiting piece. The second limiting piece restricts the position of the second connecting piece after it is sleeved with the limiting post through the connecting hole, thus limiting the relative position of the first connecting piece and the second connecting piece. This ensures that after two adjacent fiberglass felt bodies are placed on the roof, the second connecting piece is sleeved with the limiting post. Then, one fiberglass felt body is moved closer to the other fiberglass felt body, so that the two fiberglass felt bodies are tightly attached. When the fiberglass felt bodies move, the limiting post moves within the connecting hole, preventing large deviations in the position of the fiberglass felt bodies and facilitating the subsequent fixing of the two adjacent fiberglass felt bodies. The fiberglass mat body is made primarily of chopped glass fiber and polyvinyl alcohol formaldehyde fiber, reducing the weight of traditional fiberglass mats. This results in a fiberglass mat body with advantages such as low weight, high wet strength, and good thermal bonding. This allows for thermal bonding at the joints of two fiberglass mat bodies, leading to better stability after bonding adjacent mat bodies compared to using double-sided tape. It also reduces the likelihood of rainwater seeping into the roof from the joints. When the second connecting piece is pressed down from the upper ends of the first and second limiting pieces, the first and second limiting pieces converge towards the center of the first limiting piece, allowing the second connecting piece to fit over the outer wall of the limiting post. After fitting, the first and second limiting pieces can be pressed into close contact with the second connecting piece, providing effective positional control and reducing the possibility of the second connecting piece detaching from the limiting post when the fiberglass mat body moves. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the three-dimensional structure of the connection between the glass fiber felt body, the first metal sheet, and the tin foil layer of this utility model; Figure 3 This is a three-dimensional structural diagram showing the connection between the limiting post, the first limiting piece, and the second limiting piece of this utility model.
[0014] The diagram is marked as follows: 1. Fiberglass mat body; 2. First metal sheet; 3. Second metal sheet; 4. Tin foil layer; 5. First connecting piece; 6. Limiting post; 7. First limiting piece; 8. Second limiting piece; 9. Second connecting piece; 10. Connecting hole. Detailed Implementation
[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.
[0016] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0017] like Figures 1-3As shown, a low-grammage glass fiber mat includes a glass fiber mat body 1. A first metal sheet 2 and a second metal sheet 3 are fixedly connected to one side of the glass fiber mat body 1. The first metal sheet 2 and the second metal sheet 3 are fixedly connected and are rectangular. A tin foil layer 4 is fixedly connected to the other side of the glass fiber mat body 1. A plurality of first connecting pieces 5 are fixedly connected to one side of the first metal sheet 2. A limiting post 6 is fixedly connected to one end of the first connecting piece 5. A first limiting piece 7 is fixedly connected to one end of the limiting post 6. A second limiting piece 8 is fixedly connected to both ends of the first limiting piece 7. A plurality of second connecting pieces 9 are fixedly connected to one end of the second metal sheet 3. A connecting hole 10 is opened at one end of the second connecting piece 9. The limiting post 6 is slidably connected to the connecting piece 8. Inside the connection hole 10, the second limiting piece 8 and the second connecting piece 9 are movably engaged. The first metal piece 2 and the second metal piece 3 are both L-shaped pieces, and the outer walls of the first metal piece 2 and the second metal piece 3 are coated with an anti-rust coating. The fiberglass felt body 1 includes chopped fiberglass and polyvinyl alcohol formaldehyde fiber. The first limiting piece 7 is a V-shaped piece, and the second limiting piece 8 is a √-shaped piece. The first limiting piece 7 and the two second limiting pieces 8 form an M-shaped piece. The second limiting piece 8 is inclined relative to the horizontal plane and is located above the limiting post 6 and the second connecting piece 9. In use, the first metal piece 2 and the second metal piece 3 are fixedly connected to one side of the fiberglass felt body 1, so that the relative positions of the fiberglass felt body 1, the first metal piece 2 and the second metal piece 3 are fixed. The first metal sheet 2 and the second metal sheet 3 are fixedly connected by a rectangular shape, so that when the two fiberglass felt bodies 1 are attached, the first metal sheet 2 and the second metal sheet 3 are attached together. A tin foil layer 4 is fixedly connected to the other side of the fiberglass felt body 1, so that the tin foil layer 4 can increase the water-repellent effect of the fiberglass felt body 1 and enhance the heat insulation effect of the fiberglass felt body 1. Several first connecting pieces 5 are fixedly connected to one side of the first metal sheet 2. A limit post 6 is fixedly connected to one end of the first connecting piece 5, a first limit piece 7 is fixedly connected to one end of the limit post 6, and a second limit piece 8 is fixedly connected to both ends of the first limit piece 7, so that the first metal sheet 2 fixes the first connecting piece 5, and the first connecting piece 5 can pass through... The limiting post 6 fixes the first limiting piece 7, thereby fixing the position of the second limiting piece 8. Several second connecting pieces 9 are fixedly connected to one end of the second metal piece 3. One end of each second connecting piece 9 has a connecting hole 10. The limiting post 6 is slidably connected within the connecting hole 10. The second limiting piece 8 and the second connecting piece 9 are movably engaged, so that the second limiting piece 8 restricts the position of the second connecting piece 9 after it is fitted with the limiting post 6 through the connecting hole 10. This restricts the relative position of the first connecting piece 5 and the second connecting piece 9, ensuring that after two adjacent fiberglass mat bodies 1 are placed on the roof, the second connecting piece 9 is fitted with the limiting post 6. Then, moving one fiberglass mat body 1 closer to the other allows the two fiberglass mat bodies 1 to fit tightly together.When the fiberglass mat body 1 moves, the limiting post 6 moves within the connecting hole 10 to prevent significant deviations in the position of the fiberglass mat body 1, facilitating subsequent fixing of two adjacent fiberglass mat bodies 1. Since both the first metal sheet 2 and the second metal sheet 3 are L-shaped, they can form a rectangle. The outer walls of both the first metal sheet 2 and the second metal sheet 3 are coated with an anti-rust coating to prevent rusting. The fiberglass mat body 1 comprises chopped fiberglass and polyvinyl alcohol formaldehyde fiber, reducing the basis weight of traditional fiberglass mats. This results in the fiberglass mat body 1 having advantages such as low basis weight, high wet strength, and good thermal bonding. Therefore, the connection between two fiberglass mat bodies 1 can be achieved using thermal bonding, resulting in better stability after bonding adjacent fiberglass mat bodies 1 compared to using double-sided tape. This design reduces the likelihood of rainwater seeping into the roof from the joints of the fiberglass felt body 1. The first limiting piece 7 is V-shaped, and the second limiting piece 8 is √-shaped, forming an M-shape. The second limiting pieces 8 are inclined relative to the horizontal plane and located above the limiting post 6 and the second connecting piece 9. When the second connecting piece 9 is pressed down from the upper ends of the first limiting pieces 7 and 8, the first and second limiting pieces 7 and 8 converge towards the center of the first limiting piece 7, allowing the second connecting piece 9 to fit over the outer wall of the limiting post 6. After fitting, the first and second limiting pieces 7 and 8 can be pressed into close contact with the second connecting piece 9, resulting in effective positional control of the second connecting piece 9 and reducing the likelihood of the second connecting piece 9 disengaging from the limiting post 6 when the fiberglass felt body 1 moves.
[0018] As a preferred embodiment of this example, Figure 2 and Figure 3 As shown, the second connecting piece 9 is located above the first connecting piece 5 and is movably connected to the glass fiber felt body 1. The length and width of the first metal piece 2 are both smaller than the length and width of the glass fiber felt body 1. The tin foil layer 4 completely covers the outer wall of the glass fiber felt body 1. Because the second connecting piece 9 is located above the first connecting piece 5 and is movably connected to the glass fiber felt body 1, the second connecting piece 9 can move along the limiting post 6 above the first connecting piece 5 into the glass fiber felt body 1, thereby allowing two adjacent glass fiber felt bodies 1 to fit tightly together, facilitating thermal bonding between the two adjacent glass fiber felt bodies 1. Because the length and width of the first metal piece 2 are both smaller than the length and width of the glass fiber felt body 1, and the tin foil layer 4 completely covers the outer wall of the glass fiber felt body 1, the connection between the glass fiber felt body 1 and the first metal piece 2 is stable.
[0019] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.
[0020] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A low-basis-weight glass fiber mat, comprising a glass fiber mat body (1), characterized in that, A first metal sheet (2) and a second metal sheet (3) are fixedly connected to one side of the glass fiber felt body (1). The first metal sheet (2) and the second metal sheet (3) are fixedly connected and are rectangular. A tin foil layer (4) is fixedly connected to the other side of the glass fiber felt body (1). A plurality of first connecting pieces (5) are fixedly connected to one side of the first metal sheet (2). A limiting post (6) is fixedly connected to one end of the first connecting piece (5). A first limiting piece (7) is fixedly connected to one end of the limiting post (6). A second limiting piece (8) is fixedly connected to both ends of the first limiting piece (7). A plurality of second connecting pieces (9) are fixedly connected to one end of the second metal sheet (3). A connecting hole (10) is opened at one end of the second connecting piece (9). The limiting post (6) is slidably connected in the connecting hole (10). The second limiting piece (8) and the second connecting piece (9) are movably engaged.
2. The low-basis-weight glass fiber mat according to claim 1, characterized in that, Both the first metal sheet (2) and the second metal sheet (3) are L-shaped sheets, and the outer walls of both the first metal sheet (2) and the second metal sheet (3) are coated with an anti-rust coating.
3. The low-basis-weight glass fiber mat according to claim 1, characterized in that, The glass fiber felt body (1) includes chopped glass fiber and polyvinyl alcohol formaldehyde fiber.
4. The low-basis-weight glass fiber mat according to claim 1, characterized in that, The first limiting piece (7) is a V-shaped piece, the second limiting piece (8) is a √-shaped piece, the first limiting piece (7) and the two second limiting pieces (8) form an M-shaped piece, the second limiting piece (8) is inclined relative to the horizontal plane, and the second limiting piece (8) is located above the limiting post (6) and the second connecting piece (9).
5. The low-basis-weight glass fiber mat according to claim 1, characterized in that, The second connecting piece (9) is located above the first connecting piece (5), and the second connecting piece (9) is movably connected to the glass fiber felt body (1).
6. The low-basis-weight glass fiber mat according to claim 1, characterized in that, The length and width of the first metal sheet (2) are both smaller than the length and width of the glass fiber felt body (1), and the tin foil layer (4) completely covers the outer wall of the glass fiber felt body (1).