A polycarbonate panel limiting and waterproofing device and a curtain wall

CN224634147UActive Publication Date: 2026-08-14TONGJI UNIV ARCHITECTURAL DESIGN INST GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-19
Publication Date
2026-08-14

AI Technical Summary

Technical Problem

若屋面系统设计时未充分考虑并预留足够的伸缩空间,或连接构造处理不当,则极易引发一系列工程问题,例如板块脱扣、在强风作用下被整体吹飞,以及接缝位置密封失效导致漏水等隐患

Benefits of technology

[0016](1)本实用新型通过在支座的导水槽中设置限位件,以及采用压块将两个聚碳酸酯板进行连接,能够在较大温差情况下,防止聚碳酸酯板形变较大,在其温度较低时,防止聚碳酸酯板收缩变小,且通过导水槽可以收集冷凝水或者上方渗水,实现限位和防水的双重保障。

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Abstract

This utility model relates to a polycarbonate panel limiting and waterproofing device and a curtain wall. The device includes: a keel, a support, a limiting member, and a pressure block. The support is installed on the keel and is also installed on the opposite side edges of two polycarbonate panels and located below the polycarbonate panels. The support has water guide grooves on both sides, and the limiting member is installed on the water guide grooves and connected to the upper polycarbonate panel. The pressure block is installed on the opposite side edges of the two polycarbonate panels and located above the polycarbonate panels. Compared with the prior art, this utility model has advantages such as waterproofing and anti-detachment.
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Description

Technical Field

[0001] This utility model relates to the field of waterproof structure technology, and in particular to a polycarbonate board limiting and waterproofing device and a curtain wall. Background Technology

[0002] Polycarbonate sheets have been widely used in skylight roofing systems in recent years due to their light weight and significantly higher impact resistance than traditional glass. However, this material also has significant drawbacks: its low modulus of elasticity results in relatively low overall stiffness. When used in outdoor skylights, they are constantly exposed to the natural environment, where extreme temperature differences between winter and summer can reach around 100 degrees Celsius. Under such drastic temperature changes, polycarbonate sheets will undergo significant thermal expansion and contraction. If the roofing system design does not adequately consider and reserve sufficient expansion and contraction space, or if the connection structure is improperly handled, it can easily lead to a series of engineering problems, such as panels coming loose, being blown away by strong winds, and leaks due to sealing failure at the joints. Utility Model Content

[0003] The purpose of this utility model is to provide a polycarbonate panel limiting and waterproofing device that provides dual protection of limiting and waterproofing, as well as a curtain wall.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A polycarbonate sheet limiting and waterproofing device includes a keel, a support, a limiting member, and a pressure block. The support is installed on the keel and is also installed on the opposite side edges of two polycarbonate sheets and located below the polycarbonate sheets. The support is provided with water guide grooves on both sides, and the limiting member is installed on the water guide grooves on both sides and is connected to the upper polycarbonate sheet. The pressure block is installed on the opposite side edges of the two polycarbonate sheets and located above the polycarbonate sheets.

[0006] Furthermore, the limiting member is connected to the polycarbonate plate above by a machine screw.

[0007] Furthermore, multiple pressure blocks are provided.

[0008] Furthermore, a sealing strip is filled between the polycarbonate plate and the limiting member.

[0009] Furthermore, the pressure block is mounted above the polycarbonate plate by machine screws.

[0010] Furthermore, the polycarbonate plate has a honeycomb-shaped buffer layer inside.

[0011] Furthermore, it also includes a snap-on cover, which is installed on the opposite edges of the two polycarbonate plates and covers the pressure block.

[0012] Furthermore, the keel is made of steel or aluminum alloy.

[0013] Furthermore, the support, limiting member, and pressure block are all made of aluminum alloy.

[0014] The present invention also provides a curtain wall comprising two or more polycarbonate panels and a polycarbonate panel limiting and waterproofing device as described above, wherein any two polycarbonate panels are arranged adjacent to each other.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) By setting a limiting component in the water guide groove of the support and using a pressure block to connect the two polycarbonate plates, this utility model can prevent the polycarbonate plates from deforming too much under large temperature difference, and prevent the polycarbonate plates from shrinking when the temperature is low. The water guide groove can collect condensate or seepage from above, thus achieving dual protection of limiting and waterproofing.

[0017] (2) The water guide groove and the sealing strip of this utility model form a double waterproof barrier, which can reach the level 3 waterproof standard after water spray test.

[0018] (3) The present invention provides a honeycomb buffer layer in the polycarbonate board, which helps to improve the uniformity of stress distribution of the polycarbonate board.

[0019] (4) The limiting component of this utility model can be mechanically fixed to the polycarbonate plate to prevent it from coming off. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the keel structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the installation structure of the keel and support of this utility model;

[0023] Figure 4 This is a schematic diagram of the installation structure of the polycarbonate plate and the limiting component of this utility model;

[0024] Figure 5 This is a schematic diagram of the installation structure of the pressure block of this utility model;

[0025] Figure 6 This is a schematic diagram of the installation structure of the sealing strip of this utility model;

[0026] Figure 7 This is a schematic diagram of the overall structure of the pressing block of this utility model;

[0027] Figure 8 This is a schematic diagram of the honeycomb buffer layer structure inside the polycarbonate board of this utility model;

[0028] Figure 9 This is a structural diagram showing the position of the support and limiting component of this utility model;

[0029] In the diagram: 1. Keel, 2. Support, 3. Polycarbonate sheet, 3-1. Honeycomb buffer layer, 4. Limiting component, 5. Machine screw, 6. Pressure block, 7. Sealing strip, 8. Cover, 9. Water guide channel. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0033] 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., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," "third," etc., used to describe a common object only indicate different instances of the same object, and do not imply that the objects described in this way must be in a given order, whether temporally, spatially, sequentially, or in any other way.

[0034] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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.

[0035] Example 1

[0036] This embodiment provides a polycarbonate plate limiting and waterproofing device, such as Figure 1 As shown, it includes a keel 1, a support 2, a limiting member 4, a pressure block 6, and a cover 8. The keel 1 is made of steel or aluminum alloy, and the support 2, the limiting member 4, and the pressure block 6 are all made of aluminum alloy.

[0037] Keel 1 Structure Figure 2 As shown, the support 2 is installed on the keel 1 (e.g. Figure 3 (As shown). The support 2 is also installed on the opposite side edges of the two polycarbonate plates 3 and located below the polycarbonate plates 3, as shown. Figure 9 As shown, the support 2 is provided with water guide grooves 9 on both sides, and the space between the limiting member 4 and the polycarbonate plate 3 is filled with... Figure 6 The sealing strip 7 shown forms a double waterproof barrier through the water channel 9 and the sealing strip 7. The cover 8 is installed on the opposite edges of the two polycarbonate plates 3 and covers the pressure block 6, serving a protective function and ensuring a tight connection between the two polycarbonate plates 3.

[0038] like Figure 4 (Only the limiter 4 on one side is shown) The limiter 4 is installed on the water guide channels on both sides, and the limiter 4 is connected to the polycarbonate plate 3 above by the machine screw 5, so as to achieve the installation gap control of 0.5mm between the support 2 and the polycarbonate plate 3.

[0039] Furthermore, the limiting member 4 and the polycarbonate plate 3 can be prefabricated and connected at the factory using machine screws 5.

[0040] like Figure 5 As shown, the pressure block 6 is mounted on the opposite edges of the two polycarbonate plates 3 via machine screws 5 and is located above the polycarbonate plates 3. The specific structure of the pressure block 6 is as follows: Figure 7 As shown.

[0041] Furthermore, such as Figure 8 As shown, the polycarbonate plate 3 in this embodiment has a honeycomb buffer layer 3-1 inside.

[0042] Furthermore, in this embodiment, multiple pressure blocks 6 are provided to improve the tight connection between the two polycarbonate plates 3.

[0043] Through mechanical analysis and fluid simulation verification, this embodiment has the following improvements:

[0044] 1) A honeycomb-shaped buffer layer 3-1 is added inside the pressure block 6 to improve the stress distribution uniformity by 40%;

[0045] 2) The limiting component 4 achieves 0.5mm precision installation gap control through adjusting bolts;

[0046] 3) The water guide groove 9 and the sealing strip 7 form a double waterproof barrier, achieving a Class 3 waterproof standard after a water spray test (GB / T 7106-2008). Comparative experimental data shows that under extreme temperature differences from -40℃ to 120℃, the displacement of the board is controlled within 0.18mm, and the permanent compression deformation rate of the sealing strip is less than 8%, significantly better than the industry standard requirement of 15%.

[0047] This device is particularly suitable for curtain wall installation using 8-12mm thick hollow polycarbonate panels 3. Its modular design reduces installation time per square meter to 15 minutes, and maintenance requires only the removal of two positioning bolts. After 1000 hours of accelerated aging testing, the device's performance indicators showed a degradation rate of no more than 5%, extending its service life by three times compared to traditional structures. This embodiment achieves a triple breakthrough in fixing reliability, waterproof performance, and construction convenience through the synergistic effect of the limiting component 4 and the water guiding channel 9, providing an innovative solution for green building envelope systems.

[0048] Example 2

[0049] This embodiment provides a curtain wall comprising two or more polycarbonate panels 3 and a polycarbonate panel limiting and waterproofing device as described in Embodiment 1, wherein any two polycarbonate panels are arranged adjacent to each other. The number of polycarbonate panels 3 is determined according to the actual curtain wall size, ultimately forming the curtain wall.

[0050] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A polycarbonate sheet limiting and waterproofing device, characterized in that, The assembly includes a keel (1), a support (2), a limiting member (4), and a pressure block (6). The support (2) is installed on the keel (1) and is also installed on the opposite side edges of two polycarbonate plates (3) and located below the polycarbonate plates (3). The support (2) is provided with water guide grooves (9) on both sides, and the limiting member (4) is installed on the water guide grooves (9) on both sides. The limiting member (4) is connected to the upper polycarbonate plate (3). The pressure block (6) is installed on the opposite side edges of the two polycarbonate plates (3) and located above the polycarbonate plates (3).

2. The polycarbonate sheet limiting and waterproofing device according to claim 1, characterized in that, The limiting member (4) is connected to the polycarbonate plate (3) above by a machine screw (5).

3. The polycarbonate sheet limiting and waterproofing device according to claim 1, characterized in that, Multiple pressure blocks (6) are provided.

4. The polycarbonate sheet limiting and waterproofing device according to claim 1, characterized in that, A sealing strip (7) is filled between the polycarbonate plate (3) and the limiting member (4).

5. The polycarbonate sheet limiting and waterproofing device according to claim 1, characterized in that, The pressure block (6) is mounted above the polycarbonate plate (3) by a machine screw (5).

6. The polycarbonate sheet limiting and waterproofing device according to claim 1, characterized in that, The polycarbonate board (3) has a honeycomb-shaped buffer layer (3-1) inside.

7. The polycarbonate sheet limiting and waterproofing device according to claim 1, characterized in that, It also includes a snap cover (8), which is installed on the opposite edges of the two polycarbonate plates (3) and covers the pressure block (6).

8. The polycarbonate sheet limiting and waterproofing device according to claim 1, characterized in that, The keel (1) is made of steel or aluminum alloy.

9. A polycarbonate sheet limiting and waterproofing device according to claim 1, characterized in that, The support (2), the limiting member (4), and the pressure block (6) are all made of aluminum alloy.

10. A curtain wall, characterized in that, It includes two or more polycarbonate plates (3) and a polycarbonate plate limiting and waterproofing device according to any one of claims 1-9, wherein any two polycarbonate plates (3) are arranged adjacent to each other.