Locking mechanism and method for sunroom roof panels and sunroom

Abstract

This invention provides a locking mechanism, locking method, and sunroom for a sunroom roof panel. The locking mechanism for the sunroom roof panel includes a central sill, a central sill cover, a locking bolt, and a T-nut. The lower side of the central sill cover has a first nut groove; the upper side of the central sill has a second nut groove; the distance between the first and second end faces of the T-nut is less than the distance between the third and fourth end faces; the width of the second nut groove matches the distance between the third and fourth end faces; the locking bolt passes through the central sill cover, the T-nut is fitted onto the lower end of the locking bolt, the locking bolt guides the T-nut into the first nut groove in a first direction, and then guides the T-nut into the second nut groove to rotate to a second direction. The third and fourth end faces abut against the inner side of the second nut groove, and the locking bolt is tightened to lock the ends of two adjacent roof panels. The invention is characterized by the elimination of drilling, repeated disassembly and assembly without affecting structural strength and tightness, and adaptability to various roof panel thicknesses.

Description

Technical Field

[0001] This invention relates to the field of sunroom installation, and more particularly to a locking mechanism and method for sunroom roof panels, which are used to connect and lock two adjacent roof panels. Background Technology

[0002] A sunroom is a simple structure with a translucent roof, typically built in courtyards, outdoors, or public spaces to provide ample light while sheltering people from wind and rain. A sunroom usually consists of multiple supporting columns, beams, and a roof, which is composed of multiple translucent roof panels joined together continuously.

[0003] When two adjacent translucent roof panels are joined, they need to be connected and fixed using beams or trusses. For example, a sunroom disclosed in utility model patent CN218092262U has a main beam connected to the glass panel via a fixing component. The fixing component includes a cover and a first fastener. The first fastener is a long screw. The cover is located above the glass panel, and the first fastener passes through the cover and the through hole in the glass panel in sequence to connect to the main beam.

[0004] For example, the invention patent publication text with application publication number CN108915144A provides a high-strength energy-saving sunroom system, including a steel lining, a main beam, a glass base, a glass pressure plate, and decorative buckles. The decorative buckles are installed on top of the glass pressure plate. The steel lining is embedded in the main beam, and multiple cavities are provided in both the main beam and the glass base. The main beam is connected to the glass base. An arrow-shaped protrusion 1 is provided at the upper end of the main beam, and a locking angle 1 that matches the protrusion 1 is provided at the lower end of the glass base. The protrusion 1 is locked into the locking angle 1. A locking angle 2 is provided at the upper end of the glass base, and a locking angle 3 is provided at the lower end of the glass pressure plate. A glass outer top sealing strip is connected to the locking angle 2 and the locking angle 3 respectively. The glass is placed between the two glass outer top sealing strips. The glass pressure plate and the glass base are fastened together by screw 1, and the glass base and the steel lining are fastened together by screw 2.

[0005] It is evident that in the existing splicing and fixing technology for sunroom roof panels, the glass pressure plate and glass base, or the cover and main beam, are connected by screws or bolts to clamp two adjacent roof panels. This technology has at least the following problems: 1. The structure is flimsy, and the connection reliability is insufficient for heavy roof panels; 2. When the sunroom is dismantled, the original screw holes will loosen after the screws are unscrewed, and the connection reliability will be problematic during reassembly; 3. If pre-drilled holes are used, the machining accuracy of aligning the holes of the two profiles is relatively high. If self-drilling screws without pre-drilled holes are used, not only is the installation cumbersome due to the need for drilling, but drilling will also negatively affect the mechanical strength of the profiles themselves. In particular, it cannot be adapted after replacing roof panels of different thicknesses, which is equivalent to a one-time assembly structure. Summary of the Invention

[0006] In view of the problems existing in the splicing and installation technology of sunroom roof panels, such as poor connection reliability, lack of support for repeated non-destructive disassembly and assembly, low adaptability to roof panels of different thicknesses, and the need for drilling which affects the strength of the profiles, the technical problem to be solved by the present invention is to provide a locking mechanism and locking method for sunroom roof panels, which can achieve convenient assembly without drilling, while ensuring connection firmness and non-destructive repeated disassembly and assembly, and at the same time adapting to splicing and locking of roof panels of different thicknesses.

[0007] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: a locking mechanism for the roof panel of a sunroom, used to splice and lock two adjacent roof panels, including a central beam, a central beam cover, a locking bolt and a T-nut; The lower side of the central truss cover is provided with a first nut groove for the T-nut to enter; the upper side of the central truss is provided with a second nut groove for the T-nut to enter; The T-nut includes a first end face and a second end face that are opposite each other front and back, and a third end face and a fourth end face that are opposite each other left and right. The distance between the first end face and the second end face is smaller than the distance between the third end face and the fourth end face. The width of the first nut groove matches the distance between the first end face and the second end face, and the width of the second nut groove matches the distance between the third end face and the fourth end face; The locking bolt passes through the middle sill cover from top to bottom, the T-nut is fitted on the lower end of the locking bolt, the locking bolt guides the T-nut into the first nut groove in a first direction, and the first end face and the second end face of the T-nut abut against the inner side of the first nut groove; The central sill cover and the central sill are used to clamp and fix the ends of two adjacent top plates between them. The locking bolt guides the T-nut into the second nut groove in a first direction and guides the T-nut to rotate to a second direction. The third end face and the fourth end face of the T-nut abut against the inner side of the second nut groove. The locking bolt is tightened to lock the ends of the two adjacent top plates between the central sill cover and the central sill.

[0008] The preferred technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: the locking bolt includes a bolt post and a bolt head above the bolt post, and the outer peripheral wall of the bolt post is provided with external threads; the middle pressure cap is provided with a first through hole for the bolt post to pass through, and the T-nut is provided with a second through hole for the bolt post to pass through, and the inner peripheral wall of the second through hole is provided with an internal thread that mates with the external threads; The locking bolts are screwed on to lock the ends of two adjacent top plates between the middle sill cover and the middle sill, with the bolt heads pressed against the top wall of the middle sill cover.

[0009] The preferred technical solution adopted by the present invention to solve the above-mentioned technical problem is as follows: the lower side of the middle slab cover is provided with a pair of downwardly extending first branches, and the inner sides of the two first branches form the first nut groove; The upper side of the central truss is provided with a pair of upwardly extending second branches, the second branches including a second nut groove forming part and a cap mounting groove forming part; The second nut groove forming part is inverted L-shaped, and two second nut groove forming parts are arranged opposite each other to form the second nut groove; the pressure cap mounting groove forming part is provided on the upper side of the second nut groove forming part, and two pressure cap mounting groove forming parts are arranged opposite each other to form the pressure cap mounting groove. The central sill cover and the central sill are used to clamp and fix the ends of two adjacent top plates between them, the two first branches enter between the two second branches, and the two first branches abut against the inner side of the cover mounting groove.

[0010] The preferred technical solution adopted by the present invention to solve the above-mentioned technical problem is as follows: elastic buckles are provided on both sides of the lower end of the first nut groove, the locking bolt guides the T-nut into the first nut groove in a first direction, and the elastic buckles keep the T-nut in the first nut groove.

[0011] The preferred technical solution adopted by the present invention to solve the above-mentioned technical problem is as follows: the bottom of the second nut groove is provided with a downwardly extending clearance groove, the locking bolt is screwed to lock the ends of the two adjacent top plates between the middle sill cover and the middle sill, and the clearance groove allows the lower end of the locking bolt to enter.

[0012] The preferred technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: the upper end of the middle beam is provided with a support platform for clamping the end of the top plate on both sides, and the lower end of the middle beam cover is provided with a pressing platform for clamping the end of the top plate on both sides. The central beam cover and the central beam are used to clamp and fix the ends of two adjacent top plates between them, and the corresponding support platform and the pressing platform are used to clamp the end of a top plate from above and below. The shelf and the pressing platform are provided with a number of anti-slip teeth.

[0013] The preferred technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: the central truss is provided with anti-internal seepage grooves on both sides of the second nut groove and on the inner side of the two supporting platforms.

[0014] The preferred technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: the T-nut includes a base portion and a limiting portion disposed on the upper side of the base portion; The two opposite end faces of the base portion are flush with the two opposite end faces of the limiting portion to form the first end face and the second end face of the T-shaped nut; the two opposite end faces of the base portion are the third end face and the fourth end face of the T-shaped nut. The top of both sides of the second nut groove have inwardly extending limiting edges, and a limiting opening is formed between the two limiting edges; The locking bolts are tightened to lock the ends of the two adjacent top plates between the central sill cover and the central sill, the limiting part is confined within the limiting opening, and the top end of the base part abuts against the limiting edge.

[0015] The preferred technical solution adopted by the present invention to solve the above-mentioned technical problem is as follows: rounded corners are provided between the rear end face and the third end face of the base part and between the front end face and the fourth end face to limit the rotation direction of the base part in the second nut groove.

[0016] Another technical solution adopted by the present invention to solve the above-mentioned technical problems is: a locking method for the roof panels of a sunroom. The operation targets the locking mechanism of the sunroom roof panel and two adjacent roof panels, and includes the following steps: Step 10: The locking bolt passes through the middle beam cover from top to bottom, until the lower end of the locking bolt extends out of the first nut groove; Step 20: The T-nut is fitted onto the lower end of the locking bolt in a first direction, and the locking bolt guides the T-nut into the first nut groove in the first direction. The first end face and the second end face of the T-nut abut against the inner side of the first nut groove. Step 30: The central beam cover and the central beam clamp the ends of the two adjacent top plates between them; Step 40: The locking bolt guides the T-nut into the second nut groove in a first direction and guides the T-nut to rotate to a second direction, with the third and fourth end faces of the T-nut abutting against the inner side of the second nut groove; Step 50: The locking bolts are continued to be tightened until the ends of the two adjacent top plates are locked between the middle sill cover and the middle sill.

[0017] Another technical solution adopted by the present invention to solve the above-mentioned technical problems is: a sunroom, characterized in that: it includes several supporting columns, a roof frame and a sunroom roof, wherein the sunroom roof includes several roof panels and several sets of locking mechanisms for the sunroom roof panels; The locking mechanism of the roof panel splices and locks the roof panels to form the roof of the sunroom, and the roof of the sunroom is fixed within the roof frame; the supporting columns fix and support the roof frame to support the roof of the sunroom.

[0018] Compared with the prior art, the advantages of this invention are: by setting a first nut groove on the lower side of the central sill cover and a second nut groove on the upper side of the central sill, and by cooperating with a set of locking bolts and T-nuts, the T-nut is guided and controlled to switch between the first and second nut grooves, rotates to the circumferential limit position in the second nut groove, and is further tightened, thus realizing the non-destructive and repeated splicing and disassembly of the sunroom roof panel. This not only overcomes the impact of drilling on the structural strength of the central sill in the prior art, but also ensures high tightness after repeated disassembly and assembly. Moreover, it can adapt to the splicing and locking of roof panels of different thicknesses, and is very convenient for replacing the roof panel or even dismantling the sunroom and then reassembling it. This completely changes the "one-time" drawback of the sunroom roof installation structure. Attached Figure Description

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0020] Figure 1 This is a schematic diagram of the structure of a sunroom according to a preferred embodiment of the present invention; Figure 2 for Figure 1 A partial sectional view at point A; Figure 3 This is a schematic diagram illustrating the installation process of the locking mechanism for a sunroom roof panel according to a preferred embodiment of the present invention. Figure 1 ; Figure 4 This is a schematic diagram illustrating the installation process of the locking mechanism for a sunroom roof panel according to a preferred embodiment of the present invention. Figure 2 ; Figure 5 This is a schematic diagram illustrating the installation process of the locking mechanism for a sunroom roof panel according to a preferred embodiment of the present invention. Figure 3 ; Figure 6 This is a schematic diagram illustrating the installation process of the locking mechanism for a sunroom roof panel according to a preferred embodiment of the present invention. Figure 4 ; Figure 7 This is a schematic diagram illustrating the installation process of the locking mechanism for a sunroom roof panel according to a preferred embodiment of the present invention. Figure 5 ; Figure 8 This is a schematic diagram illustrating the installation process of the locking mechanism for a sunroom roof panel according to a preferred embodiment of the present invention. Figure 6 ; Figure 9 This is a schematic diagram of the structure of a T-nut according to a preferred embodiment of the present invention; Figure 10 A dynamic illustration of a T-nut according to a preferred embodiment of the present invention. Figure 1 ; Figure 11 A dynamic illustration of a T-nut according to a preferred embodiment of the present invention. Figure 2 ; Figure 12 A dynamic illustration of a T-nut according to a preferred embodiment of the present invention. Figure 3 ; Explanation of reference numerals in the attached figures: Sunroom 200, Supporting column 201, Roof frame 202, Sunroom roof 203, Top plate 204, Locking mechanism 100 for sunroom roof plate, Central purlin 10, Purlin body 11, Second branch f2, Second nut groove 12, Second nut groove forming part 13, Vertical part 13a, Horizontal part 13b, Cover mounting groove forming part 14, Restricting edge b1, Restricting opening b2, Cover mounting groove 15, Clearance groove 16, Anti-internal seepage groove 17, Central purlin cover 20, First nut groove 21, Cover body 22, First branch f1, Elastic buckle 2 3. Supporting platform t1, pressing platform t2, anti-slip teeth t3, locking bolt 30, bolt post 31, bolt head 32, waterproof gasket 33, first through hole h1, second through hole h2, T-nut 40, first end face 41, second end face 42, third end face 43, fourth end face 44, base part 45, two opposite end faces of the base part 45a, 45b, limiting part 46, two opposite end faces of the limiting part 46a, 46b, third limiting end face 46c, fourth limiting end face 46d, first fillet y1, second fillet y2. Detailed Implementation

[0021] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of the invention.

[0022] In the description of this invention, it should be noted that the terms "upper," "lower," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention 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 invention. Similarly, terms such as "first" and "second" are only for the purpose of facilitating understanding and have no other directional meaning, and should not be regarded as limitations on this invention.

[0023] like Figure 1 and Figure 2 The sunroom 200 shown in this embodiment includes several supporting columns 201, a roof frame 202, and a sunroom roof 203. The sunroom roof 203 is fixed within the roof frame 202, and the supporting columns 201 fix and support the roof frame 202 to support the sunroom roof 203. In this embodiment, two supporting columns 201 are used to fix and support one side of the roof frame 202, and the other side of the roof frame 202 is fixed to a supporting surface such as a wall. In other embodiments, additional supporting columns 201 may be added depending on the size of the sunroom roof 203.

[0024] The sunroom roof 203 includes several roof panels 204 and several sets of locking mechanisms 100 for the sunroom roof panels provided in this embodiment. The roof panels 204 are made of light-transmitting materials, such as PC panels, so that sunlight can pass through the sunroom roof 203 into the sunroom 200. Each set of locking mechanisms 100 for the sunroom roof panels splices and locks two adjacent roof panels 204 together, so that multiple sets of locking mechanisms 100 for the sunroom roof panels splice and lock multiple adjacent roof panels 204 together to form the sunroom roof 203.

[0025] like Figures 2 to 8 The locking mechanism 100 for the sunroom roof panel provided in this embodiment is shown, including a central truss 10, a central truss cover 20, a locking bolt 30, and a T-nut 40. Both the central truss 10 and the central truss cover 20 extend along the end direction of the roof panel 204. The widths of the central truss 10 and the central truss cover 20 are approximately equal, so when they clamp two adjacent roof panels 204 from above and below, the clamping is tight and stable, the force on the ends of the roof panels 204 is uniform, and the clamped central truss 10 and the central truss cover 20 form a single unit from a cross-sectional perspective. Furthermore, the central truss 10 and the central truss cover 20 are made of hollow metal profiles to reduce the material's weight, thereby reducing the weight of the sunroom roof 203.

[0026] like Figure 3 Combination Figure 5 As shown, the lower side of the central sill cap 20 is provided with a first nut groove 21 for the T-nut 40 to enter, and the upper side of the central sill 10 is provided with a second nut groove 12 for the T-nut 40 to enter.

[0027] like Figures 9 to 12 As shown, the T-nut 40 includes a first end face 41 and a second end face 42 that are opposite each other front to back, and a third end face 43 and a fourth end face 44 that are opposite each other left to right. The distance between the first end face 41 and the second end face 42 is less than the distance between the third end face 43 and the fourth end face 44. The width of the first nut groove 21 matches the distance between the first end face 41 and the second end face 42, and the width of the second nut groove 12 matches the distance between the third end face 43 and the fourth end face 44.

[0028] In this embodiment, when the length direction of the T-nut 40 is parallel to the length direction of the first nut groove 21, the T-nut 40 is in the first direction u; when the length direction of the T-nut 40 is perpendicular to the width direction of the second nut groove 12, the T-nut 40 is in the second direction v.

[0029] like Figure 3 and Figure 4 As shown, when two adjacent top plates 204 need to be spliced, the locking bolt 30 is first passed through the middle sill cover 20 from top to bottom, and the T-nut 40 is put on the lower end of the locking bolt 30. The locking bolt 30 leads the T-nut 40 upward into the first nut groove 21 in the first direction u. The first end face 41 and the second end face 42 of the T-nut 40 abut against the inner side of the first nut groove 21.

[0030] Then, as Figures 5 to 8 As shown, the central sill cap 20 and the central sill 10 clamp and fix the ends of two adjacent top plates 204 between them. The locking bolt 30 guides the T-nut 40 downward into the second nut groove 12 in the first direction u, and guides the T-nut 40 to rotate to the second direction v. The third end face 43 and the fourth end face 44 of the T-nut 40 abut against the inner side of the second nut groove 12. The locking bolt 30 is continued to be tightened until the ends of the two adjacent top plates 204 are locked between the central sill cap 20 and the central sill 10.

[0031] like Figure 3 and Figure 4 As shown, the middle retaining cap 20 includes a cover body 22 and a pair of downwardly extending first branches f1 disposed on the lower side of the cover body 22. The inner sides of the two first branches f1 form a first nut groove 21. The lower ends of the first nut groove 21 are provided with elastic buckles 23 on both sides, with the two elastic buckles 23 protruding from the inner sides of the lower ends of the two first branches f1 respectively. When the locking bolt 30 guides the T-nut 40 upwards, the T-nut 40 overcomes the elastic force of the two elastic buckles 23 and enters the first nut groove 21 in a first direction u. Subsequently, the elastic buckles 23 hold the T-nut 40 within the first nut groove 21, eliminating the need for the installer to constantly hold the T-nut 40 during subsequent assembly processes.

[0032] like Figures 5 to 8As shown, the truss 10 includes a truss body 11 and a pair of upwardly extending second branches f2 disposed on the upper side of the truss body 11. Each second branch f2 includes a second nut groove forming portion 13 and a cap mounting groove forming portion 14. The second nut groove forming portion 13 is inverted L-shaped, and the two second nut groove forming portions 13 are arranged opposite each other to form a second nut groove 12. The vertical portions 13a of the inverted L-shape of the two second nut groove forming portions 13 extend upward to form the side walls of the second nut groove 12, and the transverse portions 13b extend inward relative to each other to form inwardly extending limiting edges b1 at the top of both sides of the second nut groove 12. A limiting opening b2 is formed in the groove between the two limiting edges b1. The width of the limiting opening b2 is smaller than the width of the second nut groove 12.

[0033] The cap mounting groove forming part 14 is provided on the upper side of the transverse portion 13b of the second nut groove forming part 13 and extends upward. The two cap mounting groove forming parts 14 are arranged opposite to each other to form the cap mounting groove 15. When the middle sill cap 20 and the middle sill 10 clamp and fix the ends of the two adjacent top plates 204 between them, the two first branches f1 are inserted into the cap mounting groove 15 from top to bottom to enter between the two second branches f2. The two first branches f1 are tightly abutted against the inner side of the cap mounting groove 15.

[0034] At this time, as Figure 6 and Figure 7 As shown, by pushing the locking bolt 30 downward, the locking bolt 30 leads the T-nut 40 downward in the first direction u through the limiting port b2 into the second nut groove 12 located below the gland mounting groove 15. Then, by rotating the locking bolt 30, the locking bolt 30 can lead the T-nut 40 to rotate in the second nut groove 12 to the second direction v.

[0035] like Figures 3 to 8 As shown, the locking bolt 30 includes a bolt post 31 and a bolt head 32 above the bolt post 31. The outer peripheral wall of the bolt post 31 is provided with external threads. The middle retaining cap 20 has a first through hole h1 for the bolt post 31 to pass through. The diameter of the first through hole h1 matches the diameter of the bolt post 31 and is smaller than the diameter of the bolt head 32. Figure 9 As shown, the T-nut 40 has a second through hole h2 through which the bolt post 31 passes. The inner circumferential wall of the second through hole h2 has an internal thread (not shown in the figure) that mates with the external thread.

[0036] Therefore, as the locking bolt 30 continues to be tightened, due to the threaded engagement between the bolt post 31 and the second through hole h2, the distance between the bolt head 32 and the T-nut 40 gets closer and closer, until the ends of the two adjacent top plates 204 are locked between the central sill cover 20 and the central sill 10. At this point, the bolt head 32 abuts against the top wall of the central sill cover 10, and the T-nut 40 abuts against the two limiting edges b1, thereby locking the ends of the two adjacent top plates 204 between the central sill cover 20 and the central sill 10. Preferably, as Figure 2 As shown, a waterproof gasket 33 is provided between the bolt head 32 and the top wall of the middle sill cover 10 to prevent rainwater from seeping into the interior of the middle sill cover 20 through the first through hole h1, causing corrosion and aging of the components.

[0037] like Figure 7 and Figure 8 As shown, the upper side of the rafter body 11 has a downwardly extending clearance groove 16 at the bottom of the second nut groove 12. When the locking bolt 30 is further tightened to lock the ends of the two adjacent top plates 204 between the middle rafter cover 20 and the middle rafter 10, the clearance groove 16 allows the lower end of the locking bolt 30 to enter.

[0038] like Figure 5 and Figure 6 As shown, the middle sill 10 has a support platform t1 on both sides of the upper end of its sill body 11 for clamping the end of the top plate 204, and the middle sill cover 20 has a pressing platform t2 on both sides of the lower end of its cover body 22 for clamping the end of the top plate 204. Both the support platform t1 and the pressing platform t2 are horizontal platforms that fit with the end of the top plate 204. When the middle sill cover 20 and the middle sill 10 clamp and fix the ends of two adjacent top plates 204 between them, the pair of support platforms t1 and pressing platforms t2 corresponding to each other clamp the end of one top plate 204, thereby clamping it more tightly and stably.

[0039] Furthermore, since the top plate 204 is made of a light-transmitting material of PC board, its surface is usually relatively smooth and it is easy to slip off between the middle sill cover 20 and the middle sill 10. Therefore, the support table t1 and the pressing table t2 are provided with several anti-slip teeth t3 to improve the tightness and firmness of the clamping, and also to serve as a sealing and waterproof function.

[0040] The central truss 11 has a recessed anti-seepage groove 17 on the upper side of its truss body 11, located on both sides of the second nut groove 12 and inside the two support platforms t1. Even if some rainwater, snow water, etc. penetrate through the central truss cover 20, the connection gap between the central truss 10 and the top plate 204, it can enter the anti-seepage groove 17 and prevent it from seeping into the sunroom 200.

[0041] In addition, such as Figure 1 As shown, each top plate 204 is a long rectangle and is spliced ​​parallel to each central truss 10 at intervals. The sunroom roof 203 is built at a certain angle along the length of the central truss 10. On the one hand, the top plates 204 and the central trusses 10 will not exert gravity on each other, which improves the structural strength of the sunroom roof 203 and extends its service life. On the other hand, the water accumulated in the anti-seepage groove 17 flows along the inclined anti-seepage groove 17 to the crossbeam below the roof frame 202. A water collection groove or water collection pipe is set on the crossbeam below the roof frame 202 to collect and drain the accumulated water.

[0042] like Figures 9 to 12As shown, the T-nut 40 includes a base portion 45 and a limiting portion 46 disposed on the upper side of the base portion 45. The limiting portion 46 is raised upward relative to the upper surface of the base portion 45. The cross-section of the base portion 45 is an inverted trapezoid, and its two front-to-back opposite end faces 45a and 45b are vertically arranged and flush with the two front-to-back opposite end faces 46a and 46b of the limiting portion 46 to form the first end face 41 and the second end face 42 of the T-nut 40.

[0043] The left and right sides of the base portion 45 slope upwards and outwards until the uppermost part is vertically positioned, forming two opposing end faces, namely the third end face 43 and the fourth end face 44 of the T-nut. The two opposing end faces of the limiting portion 46 are recessed inwards relative to the third end face 43 and the fourth end face 44, forming the third limiting end face 46c and the fourth limiting end face 46d.

[0044] The distance between the third limiting end face 46c and the fourth limiting end face 46d is less than the distance between the third end face 43 and the fourth end face 44. The width of the limiting opening b2 is slightly greater than the distance between the first end face 41 and the second end face 42 to ensure that the T-nut 40 can pass through in the first direction u, but matches the distance between the third limiting end face 46c and the fourth limiting end face 46d. Thus, when the locking bolt 30 leads the T-nut to rotate to the second direction v and is tightened to lock the ends of the two adjacent top plates 204 between the middle sill cover 20 and the middle sill 10, the third end face 43 and the fourth end face 44 of the T-nut 40 abut against the inner side of the second nut groove 12, the third limiting end face 46c and the fourth limiting end face 46d of the limiting part 46 abut against the limiting opening b2, and the top end of the base part 45 abuts against the limiting edge b1, thereby locking the ends of the two adjacent top plates 204 between the middle sill cover 20 and the middle sill 10.

[0045] Furthermore, such as Figures 9 to 12 As shown, a first fillet y1 is provided between the rear end face 45b and the third end face 43 of the base portion 45, and between the front end face 45a and the fourth end face 44, to restrict the rotation direction of the base portion 45 of the T-nut 40 within the second nut groove 12. Preferably, a second fillet y2 is provided between the rear end face 46b and the third restricting end face 46c, and between the front end face 46a and the fourth restricting end face 46d, to restrict the rotation direction of the restricting portion 46 of the T-nut 40 within the restricting opening b2.

[0046] Thus, as Figures 10 to 12As shown, when the T-nut 40 enters the second nut groove 12 in the first direction u, its base part 45 is located in the second nut groove 12, and its limiting part 46 is located in the limiting opening b2, when the locking bolt 30 is rotated to guide the T-nut to rotate in the second direction v, due to the existence of the first fillet y1 and the second fillet y2, the T-nut 40 can only rotate in the clockwise direction. After rotating to the position, the T-nut 40 can no longer rotate relative to the second nut groove 12. At this time, the locking bolt 30 can continue to be screwed clockwise downward.

[0047] During disassembly, turn the locking bolt 30 counterclockwise upwards. If there is any loosening between the T-nut 40 and the second nut groove 12, the locking bolt 30 will guide the T-nut 40 back to the first direction u in a counterclockwise direction. It can be seen that the placement of the first fillet y1 and the second fillet y2 between two adjacent end faces must be compatible with the threaded engagement direction between the locking bolt 30 and the T-nut 40.

[0048] The following is a locking method for the roof panel of a sunroom provided in this embodiment, characterized in that: The operation targets are the locking mechanism 100 of the sunroom roof panel provided in this embodiment, and two adjacent roof panels 204, including the following steps: like Figure 3 As shown, in step 10: the locking bolt 30 passes through the middle beam cover 20 from top to bottom until the lower end of the locking bolt 30 extends out of the first nut groove 21; In this step, the bolt post 31 of the locking bolt 30 passes through the first through hole h1 on the cover 22 until its lower end protrudes from below the first nut groove 21; like Figure 4 As shown, in step 20: the T-nut 40 is fitted onto the lower end of the locking bolt 30 in the first direction u, and the locking bolt 30 guides the T-nut 40 into the first nut groove 21 in the first direction u. The first end face 41 and the second end face 42 of the T-nut 40 abut against the inner side of the first nut groove 21. In this step, after the second through hole h2 of the T-nut 40 is fitted onto the lower end of the bolt post 31 of the locking bolt 30, the T-nut 40 is screwed several turns to reliably connect with the lower end of the locking bolt 30, and then screwed into the first direction u; then the bolt head 32 of the locking bolt 30 is pulled upward, and the T-nut 40 is squeezed and overcomes the elastic force of the two elastic buckles 23 to enter the first nut groove 21 in the first direction u, and then the elastic buckles 23 keep the T-nut 40 in the first nut groove 21; like Figure 5 and Figure 6 As shown, in step 30: the middle sill cover 20 and the middle sill 10 clamp the ends of the two adjacent top plates 204 between them; In this step, the ends of two adjacent top plates 204 are respectively placed between a pair of corresponding upper and lower support platforms t1 and pressing platforms t2, and the middle sill cover 20 is aligned with the middle sill 10, so that the pair of corresponding upper and lower support platforms t1 and pressing platforms t2 clamp the end of a top plate 204. like Figure 7 As shown, in step 40: the locking bolt 30 guides the T-nut 40 into the second nut groove 12 in the first direction v, and guides the T-nut 40 to rotate to the second direction v, with the third end face 43 and the fourth end face 44 of the T-nut 40 abutting against the inner side of the second nut groove 12. In this step, the locking bolt 30 is pushed down, and the T-nut 40 is squeezed and overcomes the elastic force of the two elastic buckles 23. It moves downward in the first direction u through the limiting port b2 and enters the second nut groove 12 located below the pressure cap mounting groove 15. Then, the bolt head 32 of the locking bolt 30 is rotated clockwise, so that the base part 45 of the T-nut 40 rotates to the second direction v in the second nut groove 12, and the limiting part 46 rotates to the second direction v in the limiting port b2 at the same time. like Figure 8 As shown, in step 50: the locking bolt 30 is continued to be tightened until the ends of the two adjacent top plates 204 are locked between the central sill cover 20 and the central sill 10; In this step, the locking bolt 30 can be tightened by turning the bolt head 32 of the locking bolt 30 clockwise. Since the third end face 43 and the fourth end face 44 of the T-nut 40 abut against the inner side of the second nut groove 12, and the third limiting end face 46c and the fourth limiting end face 46d of the limiting part 46 abut against the limiting port b2, the T-nut 40 will not rotate relative to the central truss 10. As a result, the distance between the bolt head 32 of the locking bolt 30 and the T-nut 40 gets closer and closer, and the ends of the two top plates 204 are clamped tighter and tighter until the top of the base part 45 of the T-nut 40 abuts against the limiting edge b1, thereby completing the splicing and locking of the two adjacent top plates 204.

[0049] When disassembly is required, simply turn the bolt head 32 of the locking bolt 30 counterclockwise to loosen the T-nut 40. Then, continue to turn the locking bolt 30 counterclockwise to guide the T-nut 40 to rotate from the second direction v to the first direction u. Pull the locking bolt 30 upward to guide the T-nut 40 to be pulled upward together, thus completing the disassembly.

[0050] As can be seen, the locking mechanism 100 for the sunroom roof panel provided by the present invention provides a first nut groove 21 on the lower side of the central sill cover 20 and a second nut groove 12 on the upper side of the central sill 10. Through the cooperation of a set of locking bolts 30 and T-nuts 40, the T-nuts are guided and controlled to switch between the first nut groove 21 and the second nut groove 12. The T-nuts rotate to the circumferential limit position in the second nut groove 12 and are further tightened. This enables the sunroom roof panel 204 to be repeatedly assembled and disassembled without damage. It not only overcomes the impact of drilling on the structural strength of the central sill 10 in the prior art, but also ensures high tightness after repeated assembly and disassembly. Moreover, it can adapt to the splicing and locking of roof panels 204 of different thicknesses. It is very convenient to replace the roof panel 204 or even disassemble the sunroom 200 and reassemble it. This completely changes the "disposable" drawback of the sunroom roof installation structure.

[0051] Furthermore, the cover body 22 and the first branch f1 of the central sill cap 20, as well as the sill body 11 and the second branch f2 of the central sill 10, the clearance groove 16, the anti-internal seepage groove 17 and other structures can be formed in one piece during profile casting, and at the same time become the reinforcing rib structure of the profile, achieving multiple benefits and saving production costs.

[0052] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0053] The locking mechanism, locking method, and sunroom of the sunroom roof panel provided by this invention have been described above. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand this invention and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to this invention without departing from the principles of this invention, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. A locking mechanism for the roof panels of a sunroom, used to join and lock two adjacent roof panels together, characterized in that: Includes the central truss, central truss cap, locking bolt, and T-nut; The lower side of the central truss cover is provided with a first nut groove for the T-nut to enter; the upper side of the central truss is provided with a second nut groove for the T-nut to enter; The T-nut includes a first end face and a second end face that are opposite each other front and back, and a third end face and a fourth end face that are opposite each other left and right. The distance between the first end face and the second end face is smaller than the distance between the third end face and the fourth end face. The width of the first nut groove matches the distance between the first end face and the second end face, and the width of the second nut groove matches the distance between the third end face and the fourth end face; The locking bolt passes through the middle sill cover from top to bottom, the T-nut is fitted on the lower end of the locking bolt, the locking bolt guides the T-nut into the first nut groove in a first direction, and the first end face and the second end face of the T-nut abut against the inner side of the first nut groove; The central sill cap and the central sill are used to clamp and fix the ends of two adjacent top plates between them. The locking bolt guides the T-nut into the second nut groove in a first direction and guides the T-nut to rotate to a second direction. The third end face and the fourth end face of the T-nut abut against the inner side of the second nut groove. The locking bolt is tightened to lock the ends of the two adjacent top plates between the central sill cap and the central sill. The lower side of the middle slab cover is provided with a pair of downwardly extending first branches, and the inner sides of the two first branches form the first nut groove; The upper side of the central truss is provided with a pair of upwardly extending second branches, the second branches including a second nut groove forming part and a cap mounting groove forming part; The second nut groove forming part is inverted L-shaped, and two second nut groove forming parts are arranged opposite each other to form the second nut groove; the pressure cap mounting groove forming part is provided on the upper side of the second nut groove forming part, and two pressure cap mounting groove forming parts are arranged opposite each other to form the pressure cap mounting groove. The central truss cover and the central truss are used to clamp and fix the ends of two adjacent top plates between them, the two first branches enter between the two second branches, and the two first branches abut against the inner side of the cover mounting groove; The lower end of the first nut groove is provided with elastic buckles on both sides. The locking bolt guides the T-nut into the first nut groove in a first direction, and the elastic buckles keep the T-nut in the first nut groove. The bottom of the second nut groove has a downwardly extending clearance groove. The locking bolt is screwed on to lock the ends of the two adjacent top plates between the middle sill cover and the middle sill. The clearance groove allows the lower end of the locking bolt to enter.

2. The locking mechanism for the sunroom roof panel according to claim 1, characterized in that: The locking bolt includes a bolt post and a bolt head above the bolt post. The outer peripheral wall of the bolt post is provided with external threads. The middle sill pressure cap has a first through hole for the bolt post to pass through. The T-nut has a second through hole for the bolt post to pass through. The inner peripheral wall of the second through hole is provided with internal threads that mate with the external threads. The locking bolts are screwed on to lock the ends of two adjacent top plates between the middle sill cover and the middle sill, with the bolt heads pressed against the top wall of the middle sill cover.

3. The locking mechanism for the sunroom roof panel according to claim 1, characterized in that: The upper end of the middle truss is provided with a support platform on both sides for clamping the end of the top plate, and the lower end of the middle truss cover is provided with a pressing platform on both sides for clamping the end of the top plate. The central beam cover and the central beam are used to clamp and fix the ends of two adjacent top plates between them, and the corresponding support platform and the pressing platform are used to clamp the end of a top plate from above and below. The shelf and the pressing platform are provided with a number of anti-slip teeth.

4. The locking mechanism for the sunroom roof panel according to claim 3, characterized in that: The central truss is provided with anti-seepage grooves on both sides of the second nut groove and on the inner side of the two support platforms.

5. The locking mechanism for the sunroom roof panel according to claim 1, characterized in that: The T-nut includes a base portion and a limiting portion disposed on the upper side of the base portion; The two opposite end faces of the base portion are flush with the two opposite end faces of the limiting portion to form the first end face and the second end face of the T-shaped nut; the two opposite end faces of the base portion are the third end face and the fourth end face of the T-shaped nut. The top of both sides of the second nut groove have inwardly extending limiting edges, and a limiting opening is formed between the two limiting edges; The locking bolts are tightened to lock the ends of the two adjacent top plates between the central sill cover and the central sill, the limiting part is confined within the limiting opening, and the top end of the base part abuts against the limiting edge.

6. The locking mechanism for the sunroom roof panel according to claim 5, characterized in that: The base portion has rounded corners between its rear end face and third end face, and between its front end face and fourth end face, to limit the rotation direction of the base portion within the second nut groove.

7. A locking method for the roof panels of a sunroom, characterized in that: Its operation targets the locking mechanism of the sunroom roof panel as described in any one of claims 1-6, and two adjacent roof panels, and includes the following steps: Step 10: The locking bolt passes through the middle beam cover from top to bottom, until the lower end of the locking bolt extends out of the first nut groove; Step 20: The T-nut is fitted onto the lower end of the locking bolt in a first direction, and the locking bolt guides the T-nut into the first nut groove in the first direction. The first end face and the second end face of the T-nut abut against the inner side of the first nut groove. Step 30: The central beam cover and the central beam clamp the ends of the two adjacent top plates between them; Step 40: The locking bolt guides the T-nut into the second nut groove in a first direction and guides the T-nut to rotate to a second direction, with the third and fourth end faces of the T-nut abutting against the inner side of the second nut groove; Step 50: The locking bolts are continued to be tightened until the ends of the two adjacent top plates are locked between the middle sill cover and the middle sill.

8. A sunroom, characterized by: It includes several supporting columns, a roof frame and a sunroom roof, wherein the sunroom roof includes several roof panels and several sets of locking mechanisms for the sunroom roof panels as described in any one of claims 1-6; The locking mechanism of the roof panel splices and locks the roof panels to form the roof of the sunroom, and the roof of the sunroom is fixed within the roof frame; the supporting columns fix and support the roof frame to support the roof of the sunroom.

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