Connecting device for standard daylighting panels with folded edges

Abstract

The application discloses a connecting device suitable for a standard light collecting plate with a folded edge, and adopts a standard base and a standard pressing piece to connect the standard light collecting plate, which meets the requirements of standardized construction, and greatly improves the construction efficiency due to the standardized structure; the unified structure with reliable sealing performance is designed, so that the sealing leakage prevention and the connecting strength can be guaranteed; the application can guarantee the good integrity of the light collecting plate after construction, and the appearance is neat and uniform with good aesthetics; compared with the prior art, the connecting strength is higher, and the sealing performance is also higher, so that the service life of the whole light collecting plate is prolonged, and the maintenance frequency and cost are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building steel structure and enclosure construction, in particular to a connecting device suitable for standard light panel with folded edge. BACKGROUND

[0002] The steel canopy of large main structure such as stadium is usually designed as a non-closed curved surface structure, in order to achieve the requirement of large span, pipe truss or net structure is generally used. After the installation of the main structure of pipe truss or net structure, purlin needs to be installed, the function of the purlin is to bear the load of the enclosure structure (light panel or metal profiled sheet). In the prior art, the purlin is usually arranged in a square grid, and the structure size of different structure bodies or even the same structure body square grid is not the same. If the enclosure structure is a light panel, different light panels need to be customized according to different square grid sizes, which results in more specifications of light panels, low efficiency of manufacturing and installing light panels, and more joints in the square grid arrangement, which makes the overall performance of the light panel poor and easily causes air leakage and water leakage.

[0003] The transverse joint between the light panels is the difficulty of connection and sealing, although there are many connection methods in the prior art, but they are all simple mechanical compression sealing connection, which results in low service life of the connection of the light panel, and water leakage and loosening phenomenon will occur in a short period of time.

[0004] Therefore, it is necessary to improve the connection structure of the light panel of the steel canopy in the prior art, meet the requirements of standardized construction, be suitable for the connection of standard light panel, improve the efficiency of the construction process, save the construction cost, and achieve the purpose of long-term leakage prevention, and prolong the service life of the light panel system. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a connecting device suitable for standard light panel with folded edge, which meets the requirements of standardized construction, is suitable for the connection of standard light panel, improves the efficiency of the construction process, saves the construction cost, and achieves the purpose of long-term leakage prevention, and prolongs the service life of the light panel system.

[0006] The connecting device suitable for standard light panel with folded edge of the present application comprises a standard base and a standard compression piece, the standard base is fixedly connected with the standard compression piece upward to compress and seal and fix two adjacent standard light panels in the transverse direction.

[0007] Further, the cross section of the standard base is an approximate I-shaped I-shaped base, the upper flange of the I-shaped base is pressed on the folded edge of the standard light panel, and the lower flange of the I-shaped base is fixedly arranged.

[0008] Further, the standard compression cover is fixedly connected to the upper flange of the I-shaped base and forms downward standard compression side parts, the lower ends of the two standard compression side parts form feet, the feet form inwardly extending inner side extensions and outwardly extending outer side extensions; in use, the inner side extensions are used to press against the root outer sides of the folded edges of the corresponding standard lighting panels, and the outer side extensions are used to seal the standard sealing strips in close contact with the standard lighting panels.

[0009] Further, the end of the inner side extension forms a smooth curved surface, which is used to conform to and compress the concave groove-shaped surface of the smooth curved surface transition at the root outer side of the folded edge of the standard lighting panel.

[0010] Further, the upper flange of the I-shaped base is connected to the web of the I-shaped base through an expansion part, and the two sides of the expansion part are in contact with the folded edges of the adjacent standard lighting panels.

[0011] Further, the side part and the top part of the standard compression cover are reinforced and fixed through the reinforcing ribs integrally formed with the side part and the top part of the standard compression cover; the expansion part is a hollow tubular structure.

[0012] Further, the upper surface of the lower flange of the I-shaped base is a plane used to support the standard lighting panels, one side of the lower flange forms a downwardly concave mounting groove used to fix the lower flange to the additional purlin, and the bottom of the lower flange forms a lengthwise buffer through groove, which avoids the mounting groove.

[0013] Further, the end of the inner side extension is integrally formed with an arc-shaped plate-shaped pressing head, the compression curved surface is formed on the convex arc surface of the arc-shaped plate-shaped pressing head, and the transverse width of the arc-shaped plate-shaped pressing head is greater than the connection between the inner side extension and the arc-shaped plate-shaped pressing head.

[0014] Further, the bottom of the outer side extension is provided with a standard sealing groove in the longitudinal direction, the standard sealing groove is a necked opening groove, the standard sealing strip is made of elastic material, the upper part is provided with an expansion head and is embedded in the standard sealing groove through the expansion head, and the lower part is a sealing lip, which includes an outwardly and downwardly extending inclined ridge and a downwardly protruding protruding sealing part inside the inclined ridge, and the protruding sealing part has a downward arc surface used to elastically contact the panel surface of the standard lighting panel.

[0015] Further, a flexible layer is interposed between the inner side extension and the root outer side, the flexible layer spans the folded edges of the adjacent two standard lighting panels and extends to the root outer sides of the edges, respectively.

[0016] Further, the protruding sealing part is a hollow structure.

[0017] The beneficial effects of this invention are as follows: This invention is applicable to the connection device of standard skylight panels with folded edges. It uses a standard base and standard pressing parts to connect the standard skylight panels, meeting the requirements of standardized construction. Due to the standardized nature of its structure, this invention greatly improves construction efficiency. The uniform and reliable sealing structure ensures good sealing and connection strength. This invention guarantees good overall integrity of the skylight panel after construction, resulting in a neat and uniform appearance with good aesthetics. Compared with existing technologies, it offers higher connection strength and sealing performance, thereby extending the service life of the entire skylight panel and reducing maintenance frequency and costs. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a top view of the canopy steel structure of the present invention;

[0020] Figure 2 This invention includes an additional purlin arrangement diagram (installed during construction). Figure 1 (the steel structure of the canopy).

[0021] Figure 3 This is a schematic diagram of the arrangement of the light-transmitting panels of the present invention (installed during construction). Figure 2 Additional purlins);

[0022] Figure 4 This is a perspective view showing the connection between the standard and non-standard daylighting panels of the present invention.

[0023] Figure 5 This is a cross-sectional view of a standard skylight panel connection (meridian section of the canopy steel structure).

[0024] Figure 6 This is a cross-sectional view of a standard skylight panel (warp direction of the canopy steel structure);

[0025] Figure 7 This is a cross-sectional view of the I-shaped base (the longitudinal direction of the canopy steel structure).

[0026] Figure 8 This is a cross-sectional view of a standard press-fit component (warp direction of the canopy steel structure);

[0027] Figure 9 This is a cross-sectional view of a standard sealing strip (warp direction of the canopy steel structure);

[0028] Figure 10 This is a cross-sectional view of the connection of non-standard skylight panels (meridian section of the canopy steel structure).

[0029] Figure 11 Cross-sectional view of the T-shaped base (meridian direction of the canopy steel structure);

[0030] Figure 12 This is a cross-sectional view of a non-standard press-fit component (the longitudinal direction of the canopy steel structure).

[0031] Figure 13 Cross-sectional view of the C-shaped right-angle non-standard fastener and sealing gasket (meridian direction of the canopy steel structure);

[0032] Figure 14 A three-dimensional diagram of the arrangement of latitudinal daylighting panels (layered and stacked);

[0033] Figure 15 Longitudinal cross-sectional view of the latitudinal lighting panel arrangement (latitudinal direction of the canopy steel structure);

[0034] Figure 16 This is a longitudinal section view of the Class I waterproof structure (the latitudinal direction of the canopy steel structure). Detailed Implementation

[0035] As shown in the figure: The present invention discloses a connection device for a standard light-transmitting panel with folded edges, including a standard base 601 and a standard pressing component 602. The standard base 601 is fixedly connected to the standard pressing component 602 in the upward direction to press and seal two adjacent standard light-transmitting panels in the horizontal direction.

[0036] In this embodiment, the cross-section of the standard base 601 is an approximately I-shaped base. The upper wing plate 603 of the I-shaped base presses on the folded edge of the standard light-transmitting panel on both sides. The lower wing plate of the I-shaped base is fixedly installed, generally fixed to the steel canopy of the main building. The fixing method can adopt the existing mechanical fixing method, which will not be described in detail here.

[0037] In this embodiment, the structure of the present invention is illustrated by the construction process of using standard daylighting panels on a non-closed curved (or spherical) steel canopy of a large main building. During construction, a small number of non-standard daylighting panels will be used to adapt to the curved structure. It should be noted that the aforementioned transverse direction is the warp direction of the non-closed curved (or spherical) steel canopy, and the longitudinal direction is the weft direction, which will not be elaborated here.

[0038] The splicing components of this embodiment are used in the following construction method for steel canopy skylight panels, the method including the following steps:

[0039] a. Obtain the layout model of the skylight panels:

[0040] a1. Scanning to obtain the spatial coordinates of each point on the surface of the canopy steel structure 1 to generate a 3D point cloud model, and using the 3D point cloud model to generate a 3D curved surface drawing of the canopy steel structure; In this step, after the installation of the canopy steel structure of a large main body such as a stadium (in this embodiment, a stadium is used as an example), the curved surface of the canopy steel structure (which can be a sphere or other curved surface, in this embodiment, a sphere is used as an example) is scanned in sections. Scanning points are set up on the surface of the structure, a scaffold is erected, a 3D laser scanner is installed, and scanning is carried out along the meridian direction (the meridian refers to the direction perpendicular to the latitudinal direction, and the latitudinal direction refers to the direction of the canopy steel structure from high to low, that is, the direction from the ridge line b to the gutter line c, referring to the definition of the meridian and parallel of the earth); The spatial coordinates of each point on the surface of the canopy steel structure obtained by the 3D laser scanner are used to generate a 3D point cloud model and export the curved surface model. The 3D point cloud model is imported into 3D modeling software (such as Rhino, 3DS Max, Maya, Blender, etc.) to generate a solid curved surface drawing of the canopy steel structure, and the center line is marked in the curved surface drawing. This center line is generally the meridian from the highest point of the ridge;

[0041] a2. Arrange additional purlins to support the skylight panels in parallel along the latitudinal direction on the 3D curved surface drawing of the canopy steel structure to obtain the purlin arrangement model; multiple additional purlins are arranged in parallel along the longitudinal and latitudinal directions and fixed on the steel canopy. Their shape is adapted to the curved surface of the steel canopy, which will not be described in detail here.

[0042] a3. Based on the structural dimensions of the skylights, arrange the skylights on the purlin arrangement model from step a2:

[0043] a231. The light-transmitting panel is divided into multiple light-transmitting panel warp units in the warp direction, and the multiple light-transmitting panel warp units are arranged in layers and stacked on the additional purlins from high to low. Figure 3 Point d in the middle represents the location of the layer stacking, obtaining the warp arrangement model of the skylights; as shown in the figure, layer stacking means that in adjacent skylights in the warp direction, the skylight located at the higher position is higher than the skylight located at the lower position by a set height. In this embodiment, the height increase is generally 70-100mm, and 70mm is used in this embodiment; at the same time, there is an overlap of a set length; in order to ensure that the upper and lower skylights in the warp direction form a layer stacking, the additional purlins can be arranged accordingly or a special lifting structure can be set up, which will not be elaborated here;

[0044] a22. The meridional arrangement of the daylighting panels is arranged in the order from the meridional center to both sides to obtain the meridional arrangement model of the daylighting panels; the meridional center refers to the position of the aforementioned center line, which will not be repeated here;

[0045] The order of steps a31 and a32 is not important. In actual construction, in order to ensure the layered and stacked arrangement of the latitudinal daylighting panels and the construction of the internal sealing structure of the stacked position, the lower-level daylighting panels are installed first in the latitudinal direction, and then the higher-level daylighting panels are installed layer by layer. This will not be elaborated here. Moreover, in order to avoid the stacked position of the upper level from interfering with the installation of the lower level, the installation of all the latitudinal daylighting panels of the lower level is generally completed first, and then the installation of the upper level daylighting panels is carried out. This will not be elaborated here.

[0046] b. Installation and construction of skylight panels:

[0047] b1. Following the purlin arrangement model in step a2, install additional purlins in parallel along the weft direction on the canopy steel structure 1; fix the additional purlins to the canopy steel structure using existing mechanical fixing methods to form the foundation for installing the skylight panels;

[0048] b2. Install skylights:

[0049] b21. Install the daylighting panels layer by layer on the additional purlins according to the daylighting panel latitudinal arrangement model in step a31;

[0050] b22. Install the skylights on the additional purlins according to the skylight arrangement model in step a32;

[0051] The order of steps b21 and b22 is not important; the key is to avoid interference during installation and to maximize efficiency. They will not be elaborated further here.

[0052] In this embodiment, in step a1, the scanning is completed using a laser scanning device. The 3D laser scanning device has the function of three-dimensional scanning and quickly acquiring parameters, providing accurate theoretical guidance for subsequent construction.

[0053] The additional purlins include support purlins 2 for supporting the skylight panels and raised purlins 3 for forming a layered, stacked arrangement of adjacent skylight panels in the latitudinal direction. The support purlins 2 are continuous in the warp direction and at least two or more are provided in the latitudinal direction corresponding to each skylight panel to ensure support stability. The raised purlins 3 are located near the end (lowest end) of the skylight panel of the next higher level in the warp direction, raised relative to the support purlins 2 of the skylight panels of the next higher level in the latitudinal direction. They are generally positioned near the joint between adjacent skylight panels in the warp direction, with a warp length of 100mm spanning the joint, to ensure that the overall weight of the additional purlins is not excessively increased. Of course, the raised purlins 3 can also be continuous in the warp direction (e.g., Figure 2The diagram shows the continuous support purlin, but in actual construction, the raised purlin is generally set in sections to ensure overall weight and material conservation, providing better support and raising effect, but increasing weight, which will not be elaborated here. In this embodiment, the continuous support purlin 2 is made of 50×3mm square tubing, and the raised purlin 3 is made of 100×50×3mm square tubing, as shown in the figure. The raised purlin can be welded to the first support purlin of the next level through auxiliary components such as lugs, or the upper surface of the raised purlin can be at least 70mm away from the upper surface of the continuous purlin, generally less than 100mm. Alternatively, as shown in the figure, the raised purlin 3 can be directly welded to the first support purlin 2 of the next level. However, in order to ensure the raising space, the height of the square tubing used for the raised purlin should exceed 70mm, which will not be elaborated here.

[0054] In this embodiment, the daylighting panels include standard daylighting panels 4 with parallel long sides and non-standard daylighting panels 5 with non-parallel long sides; the long side here refers to the latitudinal direction along the semi-circular canopy steel structure, which will not be elaborated further; standard daylighting panels refer to those that are consistent in structure, shape, and size, facilitating processing and installation; non-standard daylighting panels are relative to standard daylighting panels, but as non-standard daylighting panels, they also have consistent structure, shape, and size, and can be installed using standardized methods; in this embodiment, the daylighting panels are polycarbonate hollow daylighting panels, which are used in this embodiment. The dimensions are as follows: the standard skylight panel is 13.5 meters long and 1040 mm wide, which can be determined based on the existing manufacturing process, transportation, and construction capabilities, but all standard skylight panels have the same dimensions; non-standard skylight panels (which can be understood as fan-shaped) are cut from the standard skylight panels. In this embodiment, the non-standard skylight panels are formed by cutting one long side of the standard skylight panel at an angle to adapt to the shape of the curved (spherical) steel canopy roof. All non-standard skylight panels have the same shape, structure, and dimensions, with the panel width gradually increasing from 500 mm to 990 mm and the length being 13.5 meters.

[0055] In step a32, the light-transmitting panel is divided into several zones symmetrically on both sides of the spherical center, with a predetermined number of non-standard and standard light-transmitting panels installed in each zone to accommodate the shape of the non-closed curved steel canopy. During actual construction, the zones are symmetrically divided left and right, with each zone controlled at a width of 15m. Each zone is controlled to have two non-standard light-transmitting panels and multiple (variable) standard light-transmitting panels. The dividing line between zones is determined as the centerline of the non-standard light-transmitting panels. The centerline 'a' of the non-standard light-transmitting panels serves as the reference for each zone. The control line is used to determine the number of standard skylights. The length of the standard skylight is the maximum length (in the latitudinal direction) achievable by existing manufacturing methods and transportation capabilities. Based on the remaining dimensions after the installation of the standard skylights in each area, non-standard skylights are formed on-site by cutting them into smaller pieces. Generally, only one side is cut, while the other side is the same as the standard skylight, which facilitates splicing and fixing with the standard skylight. During construction, the cut surfaces of the skylights (hollow panels in this example) need to be treated, for example, by sealing the edges with aluminum foil tape or other sealing materials.

[0056] In step b22, the daylighting panels are installed upwards according to the model in step a32. Adjacent standard daylighting panels 4 are sealed and spliced ​​using standard connecting devices 6, and adjacent non-standard daylighting panels are sealed and spliced ​​using non-standard connecting devices 7. Of course, since the non-standard daylighting panel 5 is obtained by cutting one long side of the standard daylighting panel, and the other long side is the same as the standard daylighting panel, the standard daylighting panel and the adjacent non-standard daylighting panel are sealed and spliced ​​using standard connecting devices 6, which will not be elaborated here. Standard connecting devices 6 and non-standard connecting devices 7 refer to the mechanical structures that can horizontally seal and connect the standard daylighting panels and non-standard daylighting panels, such as the usual upper and lower sealing and pressing structures, which will not be elaborated here.

[0057] In this embodiment, the standard connecting device 6 includes a standard base 601 and a standard pressing component 602. The standard base 601 is fixed to an additional purlin (which may be a supporting purlin 2 or a raising purlin 3, depending on the installation position), and is fixedly connected upwards to the standard pressing component 602 to press and seal two adjacent standard daylighting panels 4 in the warp direction. Since the standard daylighting panels are spliced ​​together in the warp (lateral) direction, the standard base 601 and the standard pressing component 602 should be strip-shaped structures in the weft direction, and their lengths should correspond to the warp lengths of the standard daylighting panels 4 (where the standard base 601 is the standard pressing component 602). The base 601 can be segmented along its length, for example, each additional purlin corresponds to one segment, which can reduce weight and save materials. However, a continuous setting corresponding to the standard lighting panel facilitates installation and alignment. This embodiment adopts a continuous setting. The standard pressing component 602 and the standard base 601 are located above and below the standard lighting panel 4 respectively and form a sealed pressing. That is, the standard pressing component 602 and the standard base 601 overlap and press the adjacent standard lighting panels 4 in the radial direction to complete the splicing of the adjacent standard lighting panels in the radial direction. This can be achieved by using a mechanical structure that can form a pressing and seal.

[0058] In this embodiment, the standard daylighting panel 4 includes a panel body and two folded edges 401 that bend upwards on both sides. The standard base 601 has an approximately I-shaped cross-section. The upper wing plate 6011 of the I-shaped base presses against the folded edges 401 of the adjacent standard daylighting panels 4 on both sides. The lower wing plate 6013 of the I-shaped base is fixed to the corresponding additional purlin (which may be a supporting purlin 2 or a lifting purlin 3, depending on the installation position). As shown in the figure, the web plate 6012 of the I-shaped base passes upwards through the folds of the two adjacent standard daylighting panels 4 on both sides. Between the edges, the upper wing plate 6011 presses against the corresponding folded edges 401 on both sides of the lateral direction, forming a complete pressing structure with good integrity and improving the connection strength of the light-transmitting panel; the approximate I-shape refers to a cross-sectional shape that is approximately I-shaped, which can be a symmetrical I-shaped structure or an asymmetrical I-shaped structure, which will not be elaborated here; the standard pressing part is covered and fixedly connected to the upper wing plate 6011 of the I-shaped base, and the standard pressing part 602 forms downward standard pressing part edges 6021 on both sides of the lateral direction, thereby forming two standard pressing parts located on both sides of the lateral direction. As shown in the figure, two standard press-fit edges 6021 are integrally formed at both ends of the standard press-fit and extend downwards, spanning both sides of the web 6012 of the I-shaped base. The lower ends of the two standard press-fit edges 6021 form feet, which form an inner extension 6022 extending inwards and an outer extension 6023 extending outwards. Here, "inner" and "outer" refer to the direction inwards and outwards in the transverse direction of the standard press-fit; "inwards" means towards the web of the I-shaped base, and "outwards" means towards the direction away from the web of the I-shaped base. Further details are omitted here; the inner extension 6022 presses against the outer root 4011 of the corresponding standard light-transmitting panel 4's folded edge 401, as shown in the figure. The outer root 4011 of the standard light-transmitting panel 4's folded edge 401 (referring to the lateral outer side, consistent with the aforementioned outer and inner directions) is a smoothly transitioned curved surface. Correspondingly, the end of the inner extension 6022 also forms a pressing curved surface. After the standard pressing part 602 is fixed to the I-shaped base, the inner extension 6022 presses against the outer root 4011 of the folded edge 401, ensuring the pressing strength and extending the overall service life.

[0059] To ensure that uneven stress is not formed during pressing, a flexible layer 607 is placed between the inner extension 6022 and the outer root 4011. During construction, sealing materials such as aluminum foil tape are generally used to ensure pressing strength while avoiding cracking, thus guaranteeing both sealing and compaction effects. As shown in the figure, a single aluminum foil tape spans the folded edges 401 of two adjacent standard skylight panels 4 and extends to the outer root 4011 on each side, providing good integrity and a tensile fixing effect on the adjacent standard skylight panels, thus improving overall strength. The outer extension 6023 is sealed with a standard sealing strip 606 that is in close contact with the standard skylight panel 4. As shown in the figure, the bottom of the outer extension 6023 has a longitudinal standard sealing groove, which is a constricted opening groove. The standard sealing strip 606 is made of a material with a certain degree of elasticity (e.g., This embodiment uses an EPDM sealing strip with an expansion head 6061 at the top, which fits into the standard sealing groove. The lower part is a sealing lip, which includes an inclined baffle 6062 extending outwards and downwards, and a downwardly protruding sealing portion 6063 located inside the inclined baffle. The protruding sealing portion 6063 has a downward-facing arc surface that elastically contacts the surface of the standard light-transmitting panel 4, forming a double seal. The inclined baffle faces the direction of incoming water and has a self-tightening sealing effect under water pressure. Combined with the elastically contacting sealing arc surface, the sealing effect is further guaranteed. As shown in the figure, the upper part of the inclined baffle 6062 extends upwards to form a capping strip that closes the outer end of the outer extension portion 6023, preventing water from entering the standard sealing groove. The protruding sealing portion 6063 has a hollow structure, providing better elastic contact sealing while saving manufacturing materials.

[0060] To ensure aesthetic appeal and a certain degree of sealing at the top, a strip-shaped cover 603 is fastened to the upper part of the standard press-fit part 602, as shown in the figure. The horizontal sides of the strip-shaped cover 603 are smoothly bent downwards to form inward protrusions. The horizontal sides of the standard press-fit part are provided with grooves near the top. The protrusions are fitted into the grooves with a certain pre-tightening force, so that the strip-shaped cover is fastened to the standard press-fit part.

[0061] In this embodiment, the outer side 4011 of the root of the folded edge 401 of the standard light-collecting panel 4 forms a smooth curved transition inner groove surface, and the end of the inner extension 6022 forms a smooth curved surface that conforms to and is pressed into the inner groove surface. As mentioned above, the end of the inner extension is a curved surface structure corresponding to the inner groove surface, which helps to increase the pressing contact area and ensure the pressing strength. As shown in the figure, the end of the inner extension is integrally formed with an arc-shaped plate-shaped pressure head 60221. The pressing curved surface is formed on the convex arc surface of the arc-shaped plate-shaped pressure head 60221. The lateral width of the arc-shaped plate-shaped pressure head is greater than the connection between the inner extension 6022 and the arc-shaped plate-shaped pressure head 60221. Therefore, when the arc-shaped plate-shaped pressure head 60221 presses against the outer side 4011 of the root of the folded edge, the lateral sides of the arc-shaped plate-shaped pressure head have a certain deformation capacity, thus having good adaptability and helping to ensure the stability of the pressing.

[0062] The edge 6021 and top of the standard press-fit component 602 are reinforced and fixed by a reinforcing rib 6024 integrally formed with the edge 6021 and top, as shown in the figure. The reinforcing rib 6024 forms a strip cavity with the edge 6021 and top of the standard press-fit component 602. Not only does the reinforcing rib itself have a good reinforcing effect, but the structure formed by the strip cavity also greatly increases the resistance of the standard press-fit component to bending moment, thereby improving the overall connection and pressing strength, and ensuring the connection strength and sealing effect of the standard light-transmitting panel.

[0063] The upper flange 6011 of the I-shaped base 601 is connected to the web 6012 of the I-shaped base 601 via an expansion portion 60121. The two sides of the expansion portion 60121 abut against the folded edges 401 of the adjacent standard light-transmitting panel 4, as shown in the figure. The folded edges 401 have recesses that conform to the shape of the expansion portion; conformity refers to shape adaptation, which will not be elaborated further here. The expansion portion is a hollow tubular structure. As shown in the figure, the cross-section of the expansion portion 60121 in this embodiment is rectangular, and the web of the I-shaped base... The 6012 expands laterally near the upper flange 6011 and is integrally formed with the upper flange (it can also be other shapes such as an inverted triangle). The hollow tubular structure helps to improve the web's resistance to bending moment without increasing the overall weight. As shown in the figure, the standard press-fit part 602 is fixedly connected to the upper flange 6011 of the I-shaped base by screws 604. Due to the presence of the expansion part, the bending resistance of the upper flange 6011 is greatly increased, thereby ensuring the connection strength between the standard press-fit part and the I-shaped base.

[0064] The upper surface of the lower wing plate 6013 of the I-shaped base is flat to support the standard skylight panel 4. A recessed mounting groove 60131 is formed on one side of the lower wing plate 6013. This "one side" refers to the lower wing plate being divided into two sides by the web, with the mounting groove located on one side. (Further details omitted). Mounting screws 605 are provided within the mounting groove 60131 to fix the lower wing plate 6013 to the additional purlin. The mounting groove 60131 allows the mounting screws to be embedded within it, thus not affecting the flatness of the upper surface of the lower wing plate 6013 and facilitating support of the standard skylight panel 4. As shown in the figure, a buffer groove 60132 is formed at the bottom of the lower wing plate 6013 along its length. The buffer groove 60132 avoids the mounting groove and is a rectangular groove with an approximately rectangular cross-section. Since one side of the lower flange 6013 of the I-shaped base (with the web as the boundary) is fixed to the additional purlin and the other side directly rests on the additional purlin, the overall deformation adaptability of the I-shaped base is greatly improved. At the same time, due to the opening of the buffer groove 60132, the support structure has a good buffering capacity and further improves the ability to adapt to deformation. Ultimately, it can have a strong adaptability to the deformation of the standard skylight 4, thus having good integrity with the skylight and the additional purlin, thereby making the skylight have high overall stability and improving the overall service life of the structure.

[0065] In this embodiment, the non-standard connecting device 7 includes a non-standard base 701 and a non-standard pressing component 702. The non-standard base 701 is fixed to an additional purlin (which may be a supporting purlin or a raised purlin depending on the position) and is fixedly connected upward to the non-standard pressing component 702 to press and seal two non-standard daylighting panels 5 adjacent in the warp direction. Since the non-standard daylighting panels 5 adjacent in the warp direction (lateral direction) are spliced ​​together, the non-standard base 701 and the non-standard pressing component 702 should be strip-shaped structures in the weft direction, and their lengths should correspond to the warp length of the non-standard daylighting panels. The non-standard pressing component 702 and the non-standard base 701 are located above and below the non-standard daylighting panels 5 respectively and form a sealed pressing. That is, the non-standard pressing component and the non-standard base overlap and press the adjacent standard daylighting panels in the warp direction to complete the splicing of the non-standard daylighting panels adjacent in the warp direction. This can be achieved by using a mechanical structure that can form a pressing and seal.

[0066] In this embodiment, the connection between adjacent non-standard daylighting panels 5 is a flat plate structure; the cross-section of the non-standard base 701 is an inverted T-shaped T-base, the wing plate 7011 of the T-base is fixed to the additional purlin, and the non-standard daylighting panel 5 is supported downward on the wing plate 7011 of the T-base 701; the non-standard pressing component 702 spans across two adjacent non-standard daylighting panels 5 and is fixedly connected downward to the web of the T-base, with downward non-standard pressing component bending portions 7021 formed at both transverse ends, and the lower ends of the two non-standard pressing component bending portions 7021 are respectively sealed and installed with a part that is in close contact with the non-standard daylighting panel. The non-standard press-fit sealing strip 707; as shown in the figure, the lower ends of the two bent portions 7021 of the non-standard press-fit 702 are provided with a longitudinal non-standard press-fit sealing groove. The non-standard press-fit sealing groove is a constricted opening groove. The non-standard press-fit sealing strip is made of a material with a certain elasticity (such as the EPDM sealing strip in this embodiment). The upper part is provided with an expansion head, which is fitted into the non-standard sealing groove. The lower part is a sealing lip. The sealing lip includes an inclined baffle extending obliquely downward and outward and a protruding sealing part with downward protrusion located inside the inclined baffle. This structure is the same as that of the standard sealing strip. For the specific structure, please refer to the attached figure. Figure 9 The details will not be elaborated here; the raised sealing part has a downward arc surface and this arc surface makes elastic contact with the surface of the non-standard light-transmitting panel 5 to form a double seal. The inclined baffle faces the direction of incoming water and has a self-tightening sealing effect under water pressure. Combined with the elastic contact sealing arc surface, the sealing effect is further guaranteed; as shown in the figure, the upper part of the inclined baffle extends upward to form a sealing strip on the outside of the closed bending part 7021, which prevents water from entering the standard sealing groove. The raised sealing part is a hollow structure, which has better elastic contact sealing performance while saving manufacturing materials.

[0067] As shown in the figure, the two transverse ends of the wing plate 7011 of the T-shaped base respectively form upwardly extending T-shaped base bending portions 70111. The upper end of the T-shaped base bending portion 70111 is provided with a longitudinal T-shaped base sealing groove. The T-shaped base sealing groove is a constricted opening groove, and a T-shaped base sealing strip is provided in the constricted opening groove. The T-shaped base sealing strip has the same structure as the non-standard press-fit sealing strip, but the installation direction is opposite. The expansion head is embedded downward in the T-shaped base sealing groove, and the sealing lip supports the corresponding non-standard lighting panel upward. Since the T-shaped base sealing strip is made of a material with a certain degree of elasticity (such as the EPDM sealing strip in this embodiment), it can not only support the non-standard lighting panel, but also has a certain buffering effect and adaptability to deformation, thereby extending the overall service life of the lighting panel.

[0068] The non-standard connection device 7 also includes a C-shaped right-angle non-standard fastener 708 that is fastened to the inner end of the non-standard lighting panel 5 via a sealing gasket 709, as shown in the figure. The cross-section of the C-shaped right-angle non-standard fastener 708 is rectangular with an opening on one side, and the opening allows the C-shaped right-angle non-standard fastener to fasten to the inner end of the non-standard lighting panel 5 (the end corresponding to the adjacent non-standard lighting panel). A sealing gasket 709 is provided in contact with the inner surface of the C-shaped right-angle non-standard fastener 708. In this embodiment, the sealing gasket is made of aluminum foil tape. During construction, the entire aluminum foil tape can be first pasted to the inner end of the non-standard lighting panel and near the inner end. The upper and lower surfaces of the section are then fastened with C-shaped right-angle non-standard fasteners 708. A certain pre-tightening force can be set between the two wings of the C-shaped right-angle non-standard fastener to ensure fastening strength. Multiple fastening teeth 7081 (long strip fastening teeth with arc-shaped cross-section, or triangular and inclined inward to ensure fastening strength) are processed on the inner surface of the two wings. Sealing protrusions are processed on the inner surface of the web. After fastening, the strip fastening teeth and sealing protrusions are pressed against the sealing gasket and the sealing gasket is concave and deformed to increase fastening strength and sealing performance, and to protect the ends of the non-standard light-transmitting panel and improve its service life. Further details are omitted here.

[0069] The C-shaped right-angle non-standard fastener 708 extends upward near its web to form a bearing rib 7082. The non-standard press-fit part 702 forms a downward pressure rib 7022, and is fixedly connected to the T-shaped base. The pressure rib 7022 presses tightly against the bearing rib 7082 and applies a lateral outward force to it. As shown in the figure, the bearing rib 7082 is integrally formed along its length from the C-shaped right-angle non-standard fastener 708, and the pressure rib is integrally formed along its length from the non-standard press-fit part. The pressure rib 7022 is located inside the bearing rib, and the side of the bearing rib 7082 near the pressure rib 7022 (the inner side of the pressure rib) is machined into a bevel. Similarly, the pressure rib is also machined with a bevel that corresponds to and matches the bevel of the bearing rib. When the non-standard pressing component is fixed downwards to the T-shaped base, the pressure rib 7022 acts on the pressure rib 7082 through the inclined surface, forming a downward force and an outward force in the direction of the C-shaped right-angle non-standard fastener 708. This further increases the fastening strength and sealing effect of the C-shaped right-angle non-standard fastener 708. In particular, the setting of the pressure rib raises the end edge of the non-standard skylight panel, so that rainwater, washing water, etc., cannot cross the pressure rib even after the sealing strip fails, ensuring the sealing and water-blocking effect after the non-standard skylight panel is installed. At the same time, the setting of the pressure rib and the pressure rib also increases the bending resistance of the non-standard pressing component 702 and the C-shaped right-angle non-standard fastener 708, thereby ensuring the integrity and strength of the non-standard skylight panel installation.

[0070] The web 7012 of the T-shaped base is pressed against the lower end of the web of the C-shaped right-angle non-standard fastener 708 and a lateral outward force is applied. As shown in the figure, the web 7012 of the T-shaped base expands laterally to both sides, and the two side surfaces form inclined surfaces. These inclined surfaces abut against the bottom corner of the web of the corresponding C-shaped right-angle non-standard fastener 708, applying upward and in the fastening direction components. The pressure ribs of the non-standard pressing component increase the fastening force from both above and below, ensuring the fastening force and sealing of the C-shaped right-angle non-standard fastener 708 and the non-standard light-transmitting panel 5, thereby ensuring the integrity of the light-transmitting panel system. As shown in the figure, the web 7012 of the T-shaped base expands laterally to both sides to form a hollow structure, which has a strong bending resistance and helps to reduce the weight of the components. This embodiment In the process, the non-standard press-fit component is fixed downwards to the web plate 7012 of the T-shaped base with screws, making construction relatively convenient. To ensure aesthetic appearance and a certain degree of sealing at the top, a strip-shaped non-standard fastener 703 is fastened to the upper part of the non-standard press-fit component, as shown in the figure. The horizontal sides of the strip-shaped non-standard fastener 703 are smoothly bent downwards to form inward protrusions. The horizontal sides of the non-standard press-fit component 702 have grooves near the top. The protrusions are fitted into the grooves with a certain pre-tightening force, so that the strip-shaped non-standard fastener is fastened to the non-standard press-fit component. As shown in the figure, the ends in the length direction (the ends of the T-shaped base, the non-standard press-fit component, and the strip-shaped non-standard fastener 703) need to be fastened with end caps to ensure both sealing and aesthetics. For specific structure, refer to [reference needed]. Figure 13 The end cap 608 that is fastened to the end of the standard connecting device 6 will not be described in detail here.

[0071] In this embodiment, a waterproof structure 8 is provided between the overlapping portions of the light-transmitting panel of the upper level and the light-transmitting panel of the lower level in the lattice direction. The waterproof structure 8 includes a primary waterproof structure 801, an intermediate waterproof structure 802, and a final waterproof structure 803 arranged from bottom to top. The light-transmitting panel here may be a standard light-transmitting panel or a non-standard light-transmitting panel, specifically as follows: Figure 13 and 14 As shown, taking a standard skylight panel as an example; here, "upper level" and "lower level" refer to the skylight panels decreasing in height from top to bottom. To ensure waterproofing, there is partial overlap between the upper level skylight panel and the adjacent lower level skylight panel. To further prevent water backflow, a waterproof structure is installed at the overlapping area, which can be multi-layered. The waterproof structure can be any waterproof structure that can achieve water resistance using existing technology, including waterproof pads, waterproof cotton, etc., sandwiched between the upper and lower level skylight panels, which will not be elaborated further here; Figure 13 and Figure 14 As shown, this embodiment uses a standard daylighting panel as an example for explanation, that is, the upper level daylighting panel is standard daylighting panel 4, and the lower level is standard daylighting panel 4a;

[0072] In this embodiment, the primary waterproof structure 801 includes a C-shaped right-angle sealing buckle 8011, a water-blocking layer 8012, and a water-blocking component. The water-blocking component includes a water-blocking strip 8014, which is fixedly installed along the warp direction and has a water-blocking sealing strip 8015 sealed at its lower end. The water-blocking sealing strip 8015 is in sealed contact with the upper surface of the next-level standard skylight 4a. The C-shaped right-angle sealing buckle 8011 is fastened to the downward-facing end (inclined) of the next-level standard skylight 4a along the weft direction. One end of the water-blocking layer 8012 is sealed and installed on the C-shaped right-angle sealing buckle 8011, and the other end is sealed and installed on the water-blocking strip 8015 to form a barrier structure. In this example, the skylight is a hollow skylight, requiring sealing at its longitudinal ends. The C-shaped right-angle sealing clip 8011 has a rectangular cross-section with an opening on one side. It engages with the end of the skylight through the opening to form a seal. The inner surface of the flange of the C-shaped right-angle sealing clip 8011 is provided with sealing teeth to increase friction, and a certain preload is applied to maintain good clip strength and prevent water from flowing into the skylight. The water-blocking layer 8012 is made of flexible waterproof material, and its transverse end is fastened and sealed with screws on the lower outer surface of the C-shaped right-angle sealing clip 8011 (the C-shaped right-angle sealing clip should have pre-reserved space for the mounting screws, as shown in the figure of the web and skylight). The ends have positions for inserting screws, or the lower wing plate can extend rearward to form a position for installing the water-blocking layer; the length direction of the water-blocking strip 8014 is along the radial direction, and there are various ways to fix the water-blocking strip. Due to structural reasons, the two ends of the water-blocking strip along its length direction are fixed to the corresponding non-standard or standard connecting devices, as shown in the figure. In this embodiment, the cross-section of the water-blocking strip is T-shaped. At both ends, the T-shaped wing plates extend beyond the web to form a stop structure, and the wing plates overlap the corresponding strip-shaped non-standard buckle or strip-shaped standard buckle and are fastened with screws. The end of the web plate abuts against the side of the strip-shaped non-standard buckle or strip-shaped standard buckle to form a fixation; water-blocking strip 801 The lower end of 4 has a water-blocking sealing groove, which is a constricted groove with an opening at the bottom. The upper part of the water-blocking sealing strip 8015 is an expansion head that fits into the water-blocking sealing groove, and the lower part is a sealing lip for sealing contact with the corresponding light-blocking panel surface. Therefore, the water-blocking sealing strip should be elastic. In this embodiment, EPDM sealing strips are used. The sealing lip is a three-piece parallel structure along the weft direction and is inclined towards the direction of incoming water, forming a water barrier in sequence. The other end of the water-blocking layer is fixed to the web of the water-blocking strip with screws to form a water-blocking structure. In this structure, the water-blocking layer and the water-blocking component together constitute a first-level waterproof, preventing water from flowing back between the upper and lower level light-blocking panels.

[0073] The intermediate waterproof structure 802 is a flexible structure that is subjected to pressure and has a certain deformation, located between the upper and lower level light-transmitting panels in the latitudinal direction; as shown in the figure, the intermediate waterproof structure 802 can be single-level or multi-level, depending on the waterproof requirements; in this embodiment, the intermediate waterproof structure is EVA waterproof plugging cotton, which is pressed between the upper and lower level light-transmitting panels to form a water barrier.

[0074] The final waterproof structure includes a final water-blocking strip, the upper end of which is fixed and the lower end is sealed with a final water-blocking sealing strip. The final water-blocking sealing strip is in sealing contact with the upper surface of the light-transmitting panel. The structure of the final water-blocking strip and the final water-blocking sealing strip is the same as that of the aforementioned water-blocking component, and the structure will not be described again.

[0075] The three-tiered waterproof structure prevents water from flowing back uphill under high water volume conditions, thus ensuring the waterproof performance of the skylight system.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A connecting device suitable for a standard type of daylighting panel with folded edges, characterized in that: It includes a standard base and a standard pressing component, wherein the standard base is fixedly connected to the standard pressing component in the upward direction to press and seal two adjacent standard light-collecting panels in the horizontal direction. The standard base has an approximately I-shaped cross-section. The upper wing of the I-shaped base presses against the folded edge of the standard light-transmitting panel on both sides, and the lower wing of the I-shaped base is fixedly installed. The standard press-fit component is covered and fixedly connected to the upper wing plate of the I-shaped base, and forms downward standard press-fit component edges. The lower ends of the two standard press-fit component edges form feet, and the feet form an inner extension extending inward and an outer extension extending outward. In use, the inner extension is used to press against the outer side of the root of the corresponding standard light-transmitting panel's folded edge, and the outer extension is sealed with a standard sealing strip that is in close contact with the standard light-transmitting panel. The end of the inner extension forms a pressing curved surface, which is used to conform to and press against the inner groove-shaped surface that forms a pressing curved surface transition with the outer side of the folded edge root of the standard light-transmitting panel. The edge and top of the standard press-fit part are reinforced and fixed by a reinforcing rib plate integrally formed with the edge and top of the standard press-fit part; the upper wing plate of the I-shaped base is connected to the web plate of the I-shaped base through an expansion part, which is a hollow tubular structure. The upper surface of the lower wing plate of the I-shaped base is flat to support the standard light-collecting panel. One side of the lower wing plate forms a recessed mounting groove for fixing the lower wing plate to the additional purlin. The bottom of the lower wing plate forms a buffer groove in the length direction, which avoids the mounting groove. The bottom of the outer extension is provided with a standard sealing groove along the longitudinal direction. The standard sealing groove is a constricted opening groove. The standard sealing strip is made of elastic material. The upper part is provided with an expansion head and is fitted into the standard sealing groove through the expansion head. The lower part is a sealing lip. The sealing lip includes an inclined baffle extending obliquely downward to the outside and a downwardly protruding protruding sealing part located inside the inclined baffle. The protruding sealing part has a downward arc surface for elastic contact with the surface of the standard light-transmitting panel. The bottom of the outer extension is provided with a standard sealing groove along the longitudinal direction. The standard sealing groove is a constricted opening groove. The standard sealing strip is made of elastic material. The upper part is provided with an expansion head and is fitted into the standard sealing groove through the expansion head. The lower part is a sealing lip. The sealing lip includes an inclined baffle extending obliquely downward to the outside and a downwardly protruding convex sealing part located inside the inclined baffle. The convex sealing part has a downward arc surface for elastic contact with the surface of the standard light-transmitting panel.

2. The connecting device for a standard type of daylighting panel with folded edges according to claim 1, characterized in that: The two sides of the expansion portion abut against the folded edges of the adjacent standard light-transmitting panels.

3. The connecting device for a standard type of daylighting panel with folded edges according to claim 1, characterized in that: The end of the inner extension is integrally formed with an arc-shaped plate-shaped pressure head. The pressing surface is formed on the convex arc surface of the arc-shaped plate-shaped pressure head. The lateral width of the arc-shaped plate-shaped pressure head is greater than the connection between the inner extension and the arc-shaped plate-shaped pressure head.

4. The connecting device for a standard type of daylighting panel with folded edges according to claim 1, characterized in that: A flexible layer is placed between the inner extension and the outer side of the root, the flexible layer spanning the folded edge of two adjacent standard light-transmitting panels and extending to the outer side of the root on each side.

5. The connecting device for a standard type of daylighting panel with folded edges according to claim 1, characterized in that: The raised sealing part is a hollow structure.

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