Roof hook structure and photovoltaic system

Abstract

The utility model discloses a roof hook structure and a photovoltaic system, and relates to the technical field of photovoltaic module installment, the roof hook structure comprises a hook body, the hook body comprises a first main body part, the two opposite sides of the first main body part in the width direction are bent to be provided with first flanges, and the first flanges are bent to be provided with second flanges; the sides, away from the first main body part, of the first turnups are further bent to form second turnups, the first turnups on the two sides are folded in the same direction, and the second turnups on the two sides are folded in the opposite directions. According to the technical scheme, the first turnup folded in the same direction and the second turnup folded in the reverse direction are arranged on the two opposite sides, in the width direction, of the first main body part, so that the cross section of the hook body is in the shape of the Chinese character'ji ', and the cross section of the hook body in the plane in the extending direction of the hook body is roughly in the shape of the Chinese character'Z'. Therefore, the structural strength of the hook body is improved, the safety of the roof hook structure is improved, and the production cost is reduced.

Description

[0001] The present application claims priority to the Chinese Utility Model Patent Application No. 202422349330.3, filed on September 24, 2024, entitled “Mounting and Photovoltaic System”, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of photovoltaic module installation, in particular to a roof hook structure and a photovoltaic system. BACKGROUND

[0003] As one of renewable energy resources, solar energy is abundant, widely distributed, clean and environmentally friendly. The solar photovoltaic power generation industry is developing rapidly, and the market application scale is continuously expanding, which has achieved unprecedented development in the field of green and low-carbon energy. Photovoltaic modules are installed outdoors, such as places with sufficient sunlight, such as roofs. When installing photovoltaic modules on inclined roofs, roof hook structures are usually used. Common roof hook structures are generally made of flat steel bending, and the structure is relatively simple and has low strength. Under the boundary load, the hook is prone to strength failure and excessive plastic deformation. SUMMARY

[0004] The main purpose of the present application is to provide a roof hook structure, which aims to improve the structural strength of the roof hook structure.

[0005] To achieve the above-mentioned purpose, the roof hook structure provided by the present application comprises a hook body, the hook body comprises a first main body part, the opposite sides of the first main body part in the width direction are both bent to form a first flange, and the side of the first flange away from the first main body part is further bent to form a second flange, the first flanges on both sides are folded in the same direction, and the second flanges on both sides are folded in opposite directions.

[0006] The hook body comprises a first mounting section, a second mounting section and an extension section in the extension direction thereof, the first mounting section and the second mounting section are arranged at opposite ends of the extension section and extend away from each other, and the first mounting section is located on the side away from the roof.

[0007] In an embodiment, on the extension section, the first flange is arranged on the side of the first main body part away from the roof.

[0008] In an embodiment, the roof hook structure further comprises an adapter, the adapter comprises a first connecting section and a second connecting section connected by bending, and the first connecting section connects the first mounting section.

[0009] The first mounting hole is provided in the first mounting section, and the second mounting hole is provided in the first connecting section in correspondence. The hook body and the adapter are detachably connected by a connecting piece penetrating through the first mounting hole and the second mounting hole.

[0010] In an embodiment, the first mounting hole is provided in the first body part, and at least one of the first mounting hole and the second mounting hole is configured as a strip-shaped hole.

[0011] In an embodiment, the first mounting hole extends along the extension direction of the first mounting section.

[0012] In an embodiment, the first mounting hole extends along the extension direction of the hook body to the extension section.

[0013] In an embodiment, the second connecting section is provided with a third mounting hole, and the third mounting hole is configured as a strip-shaped hole.

[0014] In an embodiment, the third mounting hole extends along the extension direction of the second connecting section.

[0015] In an embodiment, the third mounting hole extends along the width direction of the adapter.

[0016] In an embodiment, two first mounting holes are provided opposite to the two first flanges; the adapter includes a second body part, and the second body part is provided with a third flange on each side in the width direction; the second body part is provided on the side of the first body part away from the first flange, and the third flange is provided outside the first flange; and at least two second mounting holes are provided opposite to the two third flanges.

[0017] In an embodiment, each third flange is provided with a plurality of second mounting holes, and the second mounting holes are arranged at intervals along the extension direction of the adapter.

[0018] In an embodiment, the connecting piece includes an elastic piece, two pin shafts, and two limit pieces; the two pin shafts are arranged opposite to each other and penetrate through the corresponding second mounting holes; the limit pieces are sleeved on the outer periphery of the pin shafts and abut against the inner side of the first flange; and the elastic piece is arranged between the two pin shafts and sleeved on the outer periphery of the two pin shafts and corresponds to the outer walls of the two pin shafts.

[0019] In an embodiment, opposite sides of the two third flanges are provided with guide grooves extending along the extension direction of the third flanges, and the plurality of second mounting holes are arranged at intervals in the guide grooves, and the pin shafts can elastically extend and retract in the guide grooves.

[0020] In an embodiment, one end of the guide groove connected to the hook body is provided with a chamfer.

[0021] In an embodiment, the hook body is provided with a water leakage hole.

[0022] In an embodiment, the water leakage hole is arranged on the central axis of the hook body.

[0023] In an embodiment, the hook body is arranged in a bent manner along the extension direction thereof, and the water leakage hole is arranged at the bent portion of the hook body.

[0024] In an embodiment, the hook body is arranged in a bent manner along the extension direction thereof, and the bent portion of the hook body is arranged in an arc-shaped transition.

[0025] In an embodiment, the roof hook structure further comprises a mounting base arranged at one end of the hook body away from the roof and connected to the hook body.

[0026] In an embodiment, the mounting base comprises a bottom plate, and the second mounting section is connected to the bottom plate.

[0027] In an embodiment, the mounting base comprises a bottom plate and a connecting plate arranged upright on the bottom plate, the second mounting section is provided with a fourth mounting hole, and the connecting plate is provided with a fifth mounting hole corresponding to the fourth mounting hole, so that the hook body and the mounting base are detachably connected.

[0028] In an embodiment, at least one of the fourth mounting hole and the fifth mounting hole is configured as a strip-shaped hole.

[0029] In an embodiment, the connecting plate is bent to form a fourth flange on each of the opposite sides in the width direction, the first main body portion is inserted between the two fourth flanges, and the second flange is located on the side of the fourth flange away from the connecting plate.

[0030] The present application also provides a photovoltaic system comprising the roof hook structure.

[0031] The technical solution of this application provides a first flange folded in the same direction and a second flange folded in the opposite direction on opposite sides of the first main body in the width direction, so that the cross-sectional shape of the hook body is "U" shaped, and the hook body includes a first installation section, an extension section and a second installation section connected by bending in its extension direction, so that the cross-section of the hook body in the plane along its extension direction is approximately "Z" shaped, thereby improving the structural strength of the hook body and reducing the risk of strength failure and excessive plastic deformation of the hook body under boundary load, so as to improve the safety of the roof hook structure in subsequent use; at the same time, the thickness of the hook body is reduced to reduce production costs. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0033] Figure 1 A schematic diagram of an embodiment of the roof hook structure provided in this application;

[0034] Figure 2 for Figure 1 Exploded view of the roof hook structure;

[0035] Figure 3 for Figure 2 A cross-sectional view of the middle hook body along line M1-M1;

[0036] Figure 4 A schematic diagram of another embodiment of the roof hook structure provided in this application;

[0037] Figure 5 for Figure 4 Schematic diagram of the structure of the middle hook body;

[0038] Figure 6 for Figure 4 Schematic diagram of the middle connector;

[0039] Figure 7 for Figure 4 Schematic diagram of the intermediate connector;

[0040] Figure 8 A schematic diagram of yet another embodiment of the roof hook structure provided in this application;

[0041] Figure 9 for Figure 8 Exploded view of the roof hook structure.

[0042] BRIEF DESCRIPTION OF DRAWINGS

[0043] 10, roof hook structure; 100, hook body; 200, adapter; 300, connecting piece; 400, mounting base; 110, first main body part; 120, first flange; 130, second flange; 140, first mounting section; 150, second mounting section; 160, extension section; 161, abutting surface; 170, first mounting hole; 180, water leakage hole; 190, fourth mounting hole; 210, first connecting section; 220, second connecting section; 230, second main body part; 240, third flange; 250, second mounting hole; 260, third mounting hole; 270, guide chute; 271, chamfer; 310, pin shaft; 320, elastic piece; 330, limiting piece; 410, bottom plate; 411, seventh mounting hole; 420, connecting plate; 421, fourth flange; 422, fifth mounting hole.

[0044] The implementation, functional features and advantages of the present application will be further described with reference to the accompanying drawings. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0046] It should be noted that if the present application involves directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications will also change accordingly.

[0047] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes include the A scheme, or the B scheme, or the A and B schemes. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0048] The present application provides a roof hook structure 10.

[0049] Please refer to Figures 1 to 3 In an embodiment of the present application, the roof hook structure 10 comprises a hook body 100, the hook body 100 comprises a first main body 110, the opposite sides of the first main body 110 in the width direction are both bent to form a first flange 120, the side away from the first main body 110 of the first flange 120 is further bent to form a second flange 130, the two first flanges 120 are folded in the same direction, and the two second flanges 130 are folded in opposite directions; the hook body 100 comprises a first mounting section 140, a second mounting section 150 and an extension section 160 in the extension direction, the first mounting section 140 and the second mounting section 150 are respectively arranged at the opposite ends of the extension section 160 and extend away from each other, and the first mounting section 140 is located on the side away from the roof.

[0050] Specifically, the roof hook structure 10 is used for photovoltaic module installation, the roof hook structure 10 can be directly connected with the photovoltaic module, or first connected with the purlin, and then the photovoltaic module is installed on the purlin, so that the photovoltaic module is safely fixed on the roof. Of course, according to the needs, the roof hook structure 10 can also fix the photovoltaic module on the ground, slope or other support structure and other places where sunlight is sufficient. For the convenience of explanation, the roof is taken as an example for explanation. The hook body 100 is the main support structure, one end of the hook body 100 can be directly fixed on the roof, or fixed on the roof through other parts; the other end can be directly connected with the photovoltaic module, or connected with the photovoltaic module through other parts, so as to realize the fixed installation of the photovoltaic module by the roof hook structure 10. The hook body 100 includes a first main body 110, and first flanges 120 are formed on opposite sides of the first main body 110 in the width direction through first bending, and second flanges 130 are formed on sides of the first flanges 120 away from the first main body 110 through second bending, and the two first flanges 120 are bent in the same direction, and the two second flanges 130 are bent in opposite directions, so that the cross section of the hook body 100 perpendicular to the extending direction is substantially in the shape of a "J".

[0051] Compared with the traditional flat cross section, the "J" shaped cross section of the hook body 100 has a larger cross section modulus (moment of inertia), so as to improve the bending stiffness and carrying capacity of the hook body 100, which is helpful to resist the bending deformation caused by external load, and further improve the bending resistance of the hook body 100. Under the action of wind, snow pressure and other external forces, the photovoltaic module will be subjected to forces in various directions (such as perpendicular and parallel to the surface of the roof), and the "J" shaped cross section of the hook body 100 increases the complexity of its geometry, so that the hook body 100 can better resist shear force, so as to better resist the action of these external forces, thereby helping to improve the stability of the installation of the hook body 100.

[0052] The "J" shaped cross section of the hook body 100 greatly improves the structural strength of the hook body 100, reduces the risk of strength failure and excessive plastic deformation of the hook body 100 under boundary load, thereby reducing the safety hazard of the photovoltaic system in subsequent use. At the same time, by using the good stress characteristics of the "J" shaped cross section of the hook body 100, the thickness of the hook body 100 can be made thinner under the condition of meeting the design requirements, so as to reduce the thickness of the traditional hook on the market, which is beneficial to cost saving.

[0053] Meanwhile, the hook body 100 includes a first mounting section 140, an extension section 160, and a second mounting section 150 connected sequentially in its extension direction. The first mounting section 140 is located near the side facing away from the roof and can directly contact the photovoltaic modules or purlins, or indirectly connect to the photovoltaic modules or purlins through other components, transferring the load from the photovoltaic modules to the roof hook structure 10. The second mounting section 150 is located at the end of the extension section 160 away from the first mounting section 140 and extends away from the first mounting section 140, so that the cross-section of the hook body 100 in the plane along its extension direction is approximately "Z"-shaped, thereby further improving the structural strength of the hook body 100. The second mounting section 150 can be directly fixed to the roof, or indirectly fixed to the roof through other components, to achieve a fixed connection between the roof hook structure 10 and the roof. The extension section 160 is located between the first mounting section 140 and the second mounting section 150, serving to connect the two mounting sections and enhancing the overall structural stability of the hook body 100.

[0054] The technical solution of this application provides a first flange 120 folded in the same direction and a second flange 130 folded in the opposite direction on opposite sides of the first main body 110, so that the cross-sectional shape of the hook body 100 is "U" shaped. The hook body 100 includes a first installation section 140, an extension section 160 and a second installation section 150 connected by bending in its extension direction, so that the cross-section of the hook body 100 in the plane along its extension direction is approximately "Z" shaped. This improves the structural strength of the hook body 100 and reduces the risk of strength failure and excessive plastic deformation of the hook body 100 under boundary load, thereby improving the safety of the roof hook structure 10 in subsequent use. At the same time, the thickness of the hook body 100 is reduced to reduce production costs.

[0055] In one implementation, please refer to Figure 2 In the extension section 160, the first flange 120 is provided on the side of the first main body 110 away from the roof.

[0056] In the installed state, there is a certain gap between the extension section 160 and the roof tile surface to avoid direct contact between the extension section 160 and the tile surface as much as possible, so as to prevent the load of the photovoltaic module from being directly transferred to the tile surface. The first flange 120 is located on the side of the first main body 110 away from the roof surface, that is, the hook body 100 is placed in an "inverted V" shape. Since the first flange 120 is located on the side of the first main body 110 away from the roof surface in the extension section 160, even if the extension section 160 comes into contact with the tile surface due to an accident, it is the side of the first main body 110 away from the first flange 120 that contacts the tile surface. This side has a wider area, which can increase the contact area between the extension section 160 and the tile surface. This can avoid the risk of the hook body 100 cracking under extreme pressure, thereby avoiding the situation where the house is prone to rain leakage and increased customer complaints during the subsequent use of the photovoltaic system.

[0057] In one implementation, please refer to Figure 2 The roof hook structure 10 also includes an adapter 200, which includes a first connecting section 210 and a second connecting section 220 that are bent and connected. The first connecting section 210 is connected to the hook body 100. The hook body 100 has a first mounting hole 170, and the first connecting section 210 has a corresponding second mounting hole 250. The roof hook structure 10 also includes a connector 300, which passes through the corresponding first mounting hole 170 and second mounting hole 250, so that the hook body 100 and the adapter 200 can be detachably connected.

[0058] The adapter 200 is used to install photovoltaic modules or purlins. By using bolts, pins, or other connectors 300, the adapter 200 can be easily connected or disconnected from the hook body 100, facilitating the installation and maintenance of the roof hook structure 10. The detachable connection between the hook body 100 and the adapter 200 makes future maintenance or upgrades easier. For example, when replacing damaged parts, it is not necessary to dismantle the entire roof hook structure 10; simply disconnect the hook body 100 and the adapter 200, avoiding the more difficult disassembly and reassembly of the roof hook structure 10 to the roof.

[0059] The adapter 200 includes a first connecting section 210 and a second connecting section 220 with a bending connection. The cross section of the adapter 200 in the plane along its extension direction is approximately "L" shaped, thereby improving the structural strength of the adapter 200 and further improving the safety of the roof hook structure 10 in subsequent use.

[0060] In other embodiments, the hook body 100 and the adapter 200 may also be snap-fitted, welded, or integrally formed.

[0061] In one implementation, please refer to Figure 2The first mounting hole 170 is formed in the first main body portion 110, and at least one of the first mounting hole 170 and the second mounting hole 250 is configured as a strip hole.

[0062] At least one of the first mounting hole 170 and the second mounting hole 250 is configured as a strip-shaped hole, allowing the connector 300 to move along the length of the strip-shaped hole. This allows the connector 300 to move within a certain range, thereby adjusting the relative position between the hook body 100 and the adapter 200 to adapt to different installation requirements or to accommodate uneven roof surfaces or minor dimensional differences. The strip-shaped hole design reduces the requirements for precise measurement and positioning, making the installation process more efficient. The strip-shaped hole also helps to fine-tune the photovoltaic modules during installation to achieve the optimal tilt angle. The first mounting hole 170 can be configured as a strip-shaped hole, and the second mounting hole 250 as a regular round hole; alternatively, the second mounting hole 250 can be configured as a strip-shaped hole, and the first mounting hole 170 as a regular round hole; or both the first mounting hole 170 and the second mounting hole 250 can be configured as strip-shaped holes. The strip-shaped hole can be rectangular, oblong, or other similar shapes. The connector 300 can be fastened using bolts and nuts.

[0063] Furthermore, the adapter 200 includes a second main body 230, which has a third flange 240 bent on both sides in the width direction. The second main body 230 is located on the side of the first main body 110 away from the first flange 120, and the third flange 240 is located on the outside of the first flange 120. A second mounting hole 250 is located in the second main body 230. The second main body 230 has a larger area to facilitate the processing of the strip hole.

[0064] In other embodiments, at least one of the first mounting hole 170 and the second mounting hole 250 may be provided in multiple ways. For example, multiple first mounting holes 170 may be provided at intervals along the extension direction of the first main body portion 110, or multiple second mounting holes 250 may be provided at intervals along the extension direction of the second main body portion 230, with the first mounting hole 170 and the second mounting hole 250 selectively connected.

[0065] In one implementation, please refer to Figure 1 and Figure 2 The first mounting hole 170 extends along the extension direction of the first mounting section 140.

[0066] The first mounting hole 170 is a strip-shaped hole set along the extension direction of the first mounting section 140. During installation, it allows for fine-tuning of the relative position between the hook body 100 and the adapter 200, helping to compensate for errors during manufacturing and installation, resulting in more precise and level installation of the photovoltaic modules. Compared to the adapter 200, the hook body 100 has a larger length. When adjusting the height of the rotating component, the first mounting hole 170 causes less damage to the structural strength of the hook body 100, thus extending the service life of the roof hook structure 10.

[0067] In one implementation, please refer to Figure 8 and Figure 9 The first mounting hole 170 extends along the extension direction of the hook body 100 to the extension section 160.

[0068] The first mounting hole 170 extends to the extension section 160, meaning that the first mounting hole 170 is distributed not only in the first mounting section 140 but also in the extension section 160. By extending the first mounting hole 170 to the extension section 160, the length of the first mounting hole 170 in the first mounting section 140 is increased, thereby greatly increasing the adjustment range of the position between the first mounting section 140 and the adapter 200. In addition to being used for height adjustment, the first mounting hole 170 can also serve as a drainage hole, which helps to drain water accumulated in the hook body 100 and prevent the hook body 100 from rusting. The first mounting hole 170 also helps to eliminate deformation and stress in the hook body 100 during the bending process to form the first flange 120 and the second flange 130, thereby improving the processing yield.

[0069] In one implementation, please refer to Figure 2 The second connecting section 220 has a third mounting hole 260, which is configured as a strip hole.

[0070] The third mounting hole 260 is formed on the second connecting section 220 for connecting photovoltaic modules or purlins. Corresponding connecting holes to the third mounting hole 260 can be provided on the edge of the photovoltaic module or the purlin, allowing the adapter 200 to be connected to the photovoltaic module or purlin using fasteners such as bolts. The third mounting hole 260 is configured as a strip-shaped hole, allowing the fastener to move along the length of the strip-shaped hole within a certain range. This adjustment allows for adjustment of the relative position between the adapter 200 and the photovoltaic module to accommodate different installation requirements or to adjust the position and angle of the photovoltaic module during actual installation. The strip-shaped hole can be rectangular, oblong, or oval, etc.

[0071] Furthermore, the first connecting segment 210 and the second connecting segment 220 are symmetrical about the perpendicular bisector of their bends, and the second mounting hole 250 and the third mounting hole 260 are also symmetrical about the perpendicular bisector of their bends, so that the second mounting hole 250 and the third mounting hole 260 can be interchanged. Thus, the installer does not need to distinguish between the second mounting hole 250 and the third mounting hole 260, thereby reducing the possibility of installation errors and improving the flexibility and efficiency of photovoltaic module installation.

[0072] In one implementation, please refer to Figure 1 and Figure 7 The third mounting hole 260 extends along the extension direction of the second connecting section 220.

[0073] The third mounting hole 260 extends along the extension direction of the second connecting section 220 to facilitate fine-tuning of the front and rear positions of the photovoltaic module during installation, which helps to compensate for manufacturing errors or uneven roof surfaces.

[0074] In one implementation, please refer to Figure 8 and Figure 9 The third mounting hole 260 extends along the width direction of the adapter 200.

[0075] The third mounting hole 260 is arranged along the width of the adapter 200, providing lateral positional adjustment capability. This effectively solves the problem of lateral misalignment between the photovoltaic module and the adapter 200, ensuring accurate installation of the photovoltaic module. It also helps the photovoltaic module better distribute external forces (such as wind pressure and snow load) laterally, reducing local stress concentration and lowering the risk of damage to the adapter 200 by allowing a certain degree of lateral movement. For installation scenarios with obstacles or irregularly shaped roofs, the laterally adjustable design increases the freedom of installation between the photovoltaic module or purlin and the adapter 200, facilitating obstacle avoidance or adaptation to complex building structures.

[0076] Please see Figure 9 The second mounting hole 250 is configured as a strip-shaped hole and extends along the extension direction of the first connecting section 210, while the third mounting hole 260 is arranged along the width direction of the adapter 200. This allows for adjustment of the adapter 200 in both the lateral and vertical directions to meet the needs of different installation schemes and better align the photovoltaic modules or purlins with the adapter 200. Furthermore, the adapter 200 also accommodates adjustments for both slope-following and non-slope-following directions, ensuring easy alignment with the photovoltaic modules or purlins regardless of the installation scheme used on site, enabling rapid installation.

[0077] In one implementation, please refer to Figure 4 and Figure 7The first mounting hole 170 is provided in two parts, and the two first mounting holes 170 are disposed opposite to the two first flanges 120; the adapter 200 includes a second main body 230, and the second main body 230 is bent on both sides in the width direction to provide third flanges 240. The second main body 230 is disposed on the side of the first main body 110 away from the first flanges 120, and the third flanges 240 are disposed on the outside of the first flanges 120; at least two second mounting holes 250 are provided, and at least two second mounting holes 250 are disposed opposite to the two third flanges 240.

[0078] The adapter 200 includes a second main body 230. The second main body 230 has third flanges 240 formed by bending on opposite sides in the width direction. The two third flanges 240 are bent in the same direction, so that the cross-section of the adapter 200 in a plane perpendicular to its extension direction is approximately "U"-shaped. The second main body 230 is located on the side of the first main body 110 away from the first flange 120 and mates with the outer surface of the first main body 110. The third flanges 240 are located outside the first flange 120 and mate with its outer surface. The third flanges 240, formed by bending on opposite sides of the second main body 230 in the width direction, improve the structural strength of the adapter 200.

[0079] Unlike the previous embodiment where the first mounting hole 170 is located on the first main body 110 and the second mounting hole 250 is located on the second main body 230, in this embodiment, the first mounting hole 170 is located opposite to the two first flanges 120, and at least two second mounting holes 250 are located opposite to the two third flanges 240. A detachable connection between the first and second connecting members 300 is achieved by using bolts, pins 310, or other connecting members 300 passing through the first and second mounting holes 170 and 250 on both sides, and by using nuts or similar fasteners. This design, with mounting holes located on both flanges, provides multi-point connection and multi-point force distribution between the hook body 100 and the adapter 200, resulting in a more stable connection and a more balanced force distribution between the first and second mounting holes 170 and 250. Two second mounting holes 250 can be provided, that is, each third flange 240 has one second mounting hole 250; or four or more even numbers of second mounting holes 250 can be provided, that is, each third flange 240 has two or more second mounting holes 250.

[0080] In one implementation, please refer to Figure 7 Each third flange 240 is provided with a plurality of second mounting holes 250, which are spaced apart along the extension direction of the adapter 200.

[0081] By providing multiple second mounting holes 250 on each third flange 240, the first mounting hole 170 can be connected to the second mounting holes 250 at different positions, thereby adjusting the relative position between the hook body 100 and the adapter 200 to adapt to different installation requirements or to the unevenness or slight size differences of the roof, thus improving the flexibility of adjusting the relative position between the hook body 100 and the adapter 200.

[0082] In other embodiments, each third flange 240 may be provided with a second mounting hole 250, which is an elongated hole that extends along the extension direction of the adapter 200, so as to adjust the relative position of the hook body 100 and the adapter 200.

[0083] In one implementation, please refer to Figure 4 and Figure 6 The connector 300 includes an elastic member 320, two pins 310 and two limiting members 330. The two pins 310 are arranged opposite each other and pass through the corresponding second mounting holes 250. The limiting members 330 are sleeved on the outer periphery of the pins 310 and abut against the inner side of the first flange 120. The elastic member 320 is disposed between the two pins 310 and sleeved on the outer periphery of the two pins 310, and is correspondingly connected to the outer wall of the two pins 310.

[0084] By compressing the elastic element 320, the two pins 310 move towards each other to disengage from the corresponding second mounting holes 250. After the sliding adapter 200 is activated, the pressure on the elastic element 320 is released. Under the action of the elastic element 320, the two pins 310 move away from each other and pass into another second mounting hole 250, thereby achieving quick installation and relative position adjustment of the hook body 100 and the adapter 200. The limiting element 330 is used to prevent the pins 310 from slipping out, ensuring the stability of the entire connector 300 structure. There is a certain distance between the two pins 310, which is not less than the sum of the strokes of the two pins 310 disengaging from the second mounting holes 250.

[0085] The connector 300, consisting of an elastic element 320, a pin 310, and a limiting element 330, can be pre-installed on the hook body 100. During on-site installation, workers simply slide the adapter 200 into place. Once the adapter 200 is in the correct position, the pin 310 automatically springs into the second mounting hole 250 and locks in place. This automatic sliding and fixing of the adapter 200 improves the installation efficiency of the hook body 100 and the adapter 200, thus saving system costs. Removing the adapter 200 only requires pressing the elastic element 320 for quick disassembly.

[0086] In one implementation, please refer to Figure 7The two third flanges 240 are provided with guide grooves 270 on opposite sides. The guide grooves 270 extend along the extension direction of the third flanges 240. Multiple second mounting holes 250 are spaced apart in the guide grooves 270. The pin 310 can slide elastically and telescopically within the guide grooves 270.

[0087] The pin 310 is elastically telescopic, and can freely extend or retract within a certain range, thereby disengaging from or sliding into the second mounting hole 250. The guide groove 270 provides a sliding path for the pin 310, guides the pin 310, and ensures that the pin 310 can slide smoothly in a predetermined direction.

[0088] In one implementation, please refer to Figure 7 The guide groove 270 has a chamfer 271 at one end of the hook body 100.

[0089] The chamfer 271 helps guide the pin 310 accurately into the guide groove 270, thereby improving guiding accuracy and making it easier for the pin 310 to find the correct sliding path. This simplifies the installation process and reduces the risk of collision, jamming, or wear between the pin 310 and the guide groove 270 due to inaccurate installation. The chamfer 271 can be a straight chamfer 271, a rounded chamfer 271, etc.

[0090] In one implementation, please refer to Figure 5 The connection between the first connecting segment 210 and the second connecting segment 220 is an arc-shaped transition.

[0091] Compared to right-angle bends, the arc-shaped transition at the connection between the first connecting segment 210 and the second connecting segment 220 can more evenly distribute the load, reduce local stress concentration at the connection, and help improve the overall strength and fatigue resistance of the adapter 200 structure. The arc at the connection between the first connecting segment 210 and the second connecting segment 220 greatly facilitates processing. As the part that directly connects to the photovoltaic module or purlin, the second connecting segment 220 can be bent towards the extension segment 160 or away from the extension segment 160, depending on the actual installation situation.

[0092] In one implementation, please refer to Figure 5 The hook body 100 has a drainage hole 180.

[0093] The drainage hole 180 can be any type of opening, such as a round hole, an oblong hole, or a rectangular hole. The hook body 100 can be made of metal materials such as steel, aluminum, or aluminum alloy. The drainage hole 180 helps to drain water accumulated inside the hook body 100, preventing the hook body 100 from rusting; it also helps to eliminate deformation and stress in the hook body 100 during the bending process to form the first flange 120 and the second flange 130, thereby improving the yield rate of processed products.

[0094] In one implementation, please refer to Figure 5 The drain hole 180 is located on the central axis of the hook body 100.

[0095] By placing the drain hole 180 on the central axis, it can ensure that the accumulated water can be discharged evenly from the center of the hook body 100, avoiding water accumulation on one side; it can also ensure that the hook body 100 is subjected to the same deformation and stress on both sides of the central axis during the bending process, and at the same time ensure the balance of the hook body 100 on both sides of the central axis.

[0096] In other embodiments, multiple drainage holes 180 may be symmetrically arranged about the central axis of the hook body 100.

[0097] In one implementation, please refer to Figure 5 The hook body 100 is bent in its extension direction, and the drain hole 180 is located at the bend of the hook body 100.

[0098] The hook body 100 is bent in its extending direction, forming a first mounting section 140, an extension section 160, and a second mounting section 150. The first mounting section 140 and the extension section 160 are bent, as are the extension section 160 and the second mounting section 150. This design further enhances the structural strength of the hook body 100. The bent design also allows for a more secure attachment to the roof and adapts to the installation requirements of roof tiles. At least one drainage hole 180 is provided at the bend between the first mounting section 140 and the extension section 160, and at the bend between the extension section 160 and the second mounting section 150. The drainage hole 180, located at the bend of the hook body 100, provides better drainage and also helps eliminate deformation and stress during the bending process, thereby improving the yield rate.

[0099] In other embodiments, the drain hole 180 may also be provided in the extension section 160, such as a drain hole 180 being provided in the middle of the extension section 160, or at least one drain hole 180 extending along the extension direction of the extension section, or multiple drain holes 180 being spaced apart in the extension section 160 along the extension direction of the extension section.

[0100] In one implementation, please refer to Figure 5 The hook body 100 is bent in its extension direction, and the bend of the hook body 100 has an arc transition.

[0101] The hook body 100 has an arc-shaped transition at the bends in its extension direction, that is, the bends between the first mounting section 140 and the extension section 160, and the bends between the extension section 160 and the second mounting section 150 have an arc-shaped transition. This can distribute the load more evenly, reduce local stress concentration at the bends, help improve the overall strength of the hook body 100 structure and improve fatigue resistance, and at the same time facilitate the processing of the bends of the hook body 100 in its extension direction.

[0102] In other embodiments, the hook body 100 may also be linear in its extension direction, with one end close to the photovoltaic module and the other end close to the roof.

[0103] In one implementation, please refer to Figure 1 and Figure 4 The roof hook structure 10 also includes a mounting base 400, which is located at the end of the hook body 100 away from the roof and is connected to the hook body 100.

[0104] The mounting base 400 is fixed to the roof using screws or anchors to ensure a strong connection between the mounting base 400 and the roof, thereby improving the connection between the mounting base 400 and the hook body 100 and achieving a fixed connection between the roof hook structure 10 and the roof. The mounting base 400 can provide a larger contact area, helping to ensure that the hook body 100 can be securely fixed to the roof, thus improving the connection strength between the roof hook structure 10 and the roof and enhancing the overall stability of the roof hook structure 10. The mounting base 400 can be customized according to different roof types and installation requirements, improving the versatility of the hook body 100.

[0105] In other embodiments, the mounting base 400 may not be provided, and the hook body 100 may be directly fixed to the roof by screws or anchors.

[0106] In one implementation, please refer to Figure 2 and Figure 4 The mounting base 400 includes a base plate 410, and the second mounting section 150 is intersected and connected to the base plate 410.

[0107] The base plate 410 provides a flat and robust surface for securing the hook body 100, thereby distributing the weight of the hook body 100 and the photovoltaic module load evenly over a larger area to reduce localized pressure on the roof and prevent roof damage due to concentrated loads. The end face of the second mounting section 150 can be connected to the upper surface of the base plate 410, or the side of the base plate 410 can be connected to the first main body 110 or the second flange 130.

[0108] In one implementation, please refer to Figure 2 and Figure 4The base plate 410 has multiple seventh mounting holes 411. These seventh mounting holes 411 are used to easily fix screws, anchors, and other fasteners, ensuring reliable fixation between the mounting base 400 and the roof. The presence of multiple seventh mounting holes 411 increases the strength and reliability of the connection between the mounting base 400 and the roof.

[0109] In other embodiments, the mounting base 400 may also be block-shaped, column-shaped, or other shapes. The base plate 410 may also be fixed to the roof by means of cement casting or clamping tiles, without the seventh mounting hole 411.

[0110] In another implementation, please refer to Figure 8 and Figure 9 The mounting base 400 includes a base plate 410 and a connecting plate 420 erected on the base plate 410. The second mounting section 150 is provided with a fourth mounting hole 190, and the connecting plate 420 is provided with a fifth mounting hole 422 corresponding to the fourth mounting hole 190, so that the hook body 100 and the mounting base 400 can be detachably connected.

[0111] The base plate 410 increases the contact area with the roof, ensuring the stability of the roof hook structure 10 when installed on the roof. The connecting plate 420 is erected on the base plate 410 and is used to connect to the hook body 100. A fifth mounting hole 422 is provided on the connecting plate 420 corresponding to the fourth mounting hole 190, and works in conjunction with the fourth mounting hole 190. Fasteners pass through the fourth mounting hole 190 and the fifth mounting hole 422 to securely and detachably connect the hook body 100 to the mounting base 400. The detachable connection between the hook body 100 and the mounting base 400 makes the installation process simpler and faster, and facilitates later maintenance or component replacement.

[0112] In one implementation, please refer to Figure 8 and Figure 9 At least one of the fourth mounting hole 190 and the fifth mounting hole 422 is configured as a strip hole.

[0113] At least one of the fourth mounting hole 190 and the fifth mounting hole 422 is configured as a strip hole, allowing the hook body 100 to move vertically, thereby adjusting the relative position between the hook body 100 and the base to accommodate different installation requirements or variations in the thickness of roof tiles. The height can be adjusted via the base plate 410 and the hook body 100, and also via the adapter 200, providing greater flexibility in height adjustment. The roof hook structure 10 has a height-adjustable function, making it suitable for roof tiles of various thicknesses and different construction methods.

[0114] The fourth mounting hole 190 can be configured as a strip-shaped hole, and the fifth mounting hole 422 as a regular round hole; alternatively, the fifth mounting hole 422 can be configured as a strip-shaped hole, and the fourth mounting hole 190 as a regular round hole; or both the fourth mounting hole 190 and the fifth mounting hole 422 can be configured as strip-shaped holes. The strip-shaped hole can be rectangular, oblong, or other similar shapes. The fourth mounting hole 190 and the fifth mounting hole 422 can be fastened together using bolts and nuts.

[0115] In one implementation, please refer to Figure 8 and Figure 9 The connecting plate 420 has a fourth flange 421 bent on both sides in the width direction. The first main body 110 is inserted between the two fourth flanges 421, and the second flange 130 is located on the side of the fourth flange 421 away from the connecting plate 420.

[0116] The fourth flange 421 refers to the edge portion formed by bending outward from both sides of the connecting plate 420 in the width direction. The first main body 110 is inserted into the clamping space formed by the two fourth flanges 421, forming a nested installation method. The fourth flange 421 also has a guiding and positioning function, helping to accurately position and install the first main body 110, ensuring the correct alignment between the hook body 100 and the mounting base 400, and reducing installation errors. The second flange 130 is located on the side of the fourth flange 421 away from the connecting plate 420, making the connection between the hook body 100 and the connecting plate 420 more compact and stable, thereby increasing the connection strength and stability between the hook body 100 and the mounting base 400. The setting of the fourth flange 421 also improves the structural strength of the mounting base 400.

[0117] In one embodiment, the mounting base 400 is welded to the hook body 100.

[0118] Welding the mounting base 400 to the hook body 100 can improve the strength and stability of the connection between the two, which helps to improve the overall stability of the roof hook structure 10 and reduce the risk of the hook body 100 loosening or falling off due to an insecure connection.

[0119] In other embodiments, the mounting base 400 and the hook body 100 may also be integrally formed or locked by screws.

[0120] This application also proposes a photovoltaic system, which includes a roof hook structure 10. The specific structure of the photovoltaic system is as described in the above embodiments. Since the roof hook structure 10 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0121] The above description is merely an exemplary embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A roof hook structure (10), characterized in that, The roof hook structure (10) includes a hook body (100), which includes a first main body (110). The first main body (110) has a first flange (120) bent on both sides in the width direction. The first flange (120) is also bent to form a second flange (130) on the side away from the first main body (110). The first flanges (120) on both sides are folded in the same direction, and the second flanges (130) on both sides are folded in opposite directions. The hook body (100) includes a first mounting section (140), a second mounting section (150) and an extension section (160) in its extension direction. The first mounting section (140) and the second mounting section (150) are respectively located at opposite ends of the extension section (160) and extend away from each other. The first mounting section (140) is located on the side away from the roof.

2. The roof hook structure (10) as described in claim 1, characterized in that, In the extension section (160), the first flange (120) is provided on the side of the first main body (110) away from the roof.

3. The roof hook structure (10) as described in claim 1, characterized in that, The roof hook structure (10) further includes an adapter (200), which includes a first connecting section (210) and a second connecting section (220) that are bent and connected. The first connecting section (210) is connected to the first mounting section (140). The first mounting section (140) has a first mounting hole (170), and the first connecting section (210) has a corresponding second mounting hole (250). The roof hook structure (10) also includes a connector (300), which passes through the corresponding first mounting hole (170) and second mounting hole (250), so that the hook body (100) and the adapter (200) can be detachably connected.

4. The roof hook structure (10) as described in claim 3, characterized in that, The first mounting hole (170) is formed in the first main body (110), and at least one of the first mounting hole (170) and the second mounting hole (250) is configured as a strip hole.

5. The roof hook structure (10) as described in claim 4, characterized in that, The first mounting hole (170) extends along the extension direction of the first mounting section (140); Alternatively, the first mounting hole (170) extends along the extension direction of the hook body (100) to the extension section (160).

6. The roof hook structure (10) as described in claim 3, characterized in that, The second connecting section (220) has a third mounting hole (260), which is configured as a strip hole.

7. The roof hook structure (10) as described in claim 6, characterized in that, The third mounting hole (260) extends along the extension direction of the second connecting segment (220); Alternatively, the third mounting hole (260) extends along the width direction of the adapter (200).

8. The roof hook structure (10) as described in claim 3, characterized in that, Two first mounting holes (170) are provided, and the two first mounting holes (170) are disposed opposite to the two first flanges (120); the adapter (200) includes a second main body (230), and the second main body (230) is bent on both sides in the width direction to provide third flanges (240), the second main body (230) is disposed on the side of the first main body (110) away from the first flanges (120), and the third flanges (240) are disposed on the outside of the first flanges (120); at least two second mounting holes (250) are provided, and at least two second mounting holes (250) are disposed opposite to the two third flanges (240).

9. The roof hook structure (10) as described in claim 8, characterized in that, Each of the third flanges (240) is provided with a plurality of second mounting holes (250), which are spaced apart along the extension direction of the adapter (200).

10. The roof hook structure (10) as described in claim 9, characterized in that, The connector (300) includes an elastic element (320), two pins (310) and two limiting elements (330). The two pins (310) are arranged opposite to each other and pass through the corresponding second mounting holes (250). The limiting element (330) is sleeved on the outer periphery of the pin (310) and abuts against the inner side of the first flange (120). The elastic element (320) is disposed between the two pins (310) and sleeved on the outer periphery of the two pins (310), and is correspondingly connected to the outer wall of the two pins (310).

11. The roof hook structure (10) as described in claim 10, characterized in that, The two third flanges (240) are provided with guide grooves (270) on opposite sides. The guide grooves (270) extend along the extension direction of the third flanges (240). A plurality of second mounting holes (250) are spaced apart in the guide grooves (270). The pin (310) can slide elastically and telescopically in the guide grooves (270).

12. The roof hook structure (10) as described in claim 11, characterized in that, The guide groove (270) has a chamfer (271) at one end where it connects to the hook body (100).

13. The roof hook structure (10) as described in claim 1, characterized in that, The hook body (100) is provided with a drainage hole (180).

14. The roof hook structure (10) as described in claim 13, characterized in that, The drainage hole (180) is located on the central axis of the hook body (100); And / or, the hook body (100) is bent in its extending direction, the drain hole (180) is located at the bend of the hook body (100), and / or, the bend of the hook body (100) has an arc transition.

15. The roof hook structure (10) as described in claim 1, characterized in that, The roof hook structure (10) further includes a mounting base (400), which is located at one end of the hook body (100) near the roof and is connected to the hook body (100).

16. The roof hook structure (10) as described in claim 15, characterized in that, The mounting base (400) includes a base plate (410), and the second mounting section (150) is intersected and connected to the base plate (410).

17. The roof hook structure (10) as described in claim 15, characterized in that, The mounting base (400) includes a base plate (410) and a connecting plate (420) erected on the base plate (410). The second mounting section (150) is provided with a fourth mounting hole (190), and the connecting plate (420) is provided with a fifth mounting hole (422) corresponding to the fourth mounting hole (190), so that the hook body (100) and the mounting base (400) can be detachably connected.

18. The roof hook structure (10) as described in claim 17, characterized in that, At least one of the fourth mounting hole (190) and the fifth mounting hole (422) is configured as a strip hole; And / or, the connecting plate (420) is provided with a fourth flange (421) on both opposite sides in the width direction, the first main body (110) is inserted between the two fourth flanges (421), and the second flange (130) is located on the side of the fourth flange (421) away from the connecting plate (420).

19. A photovoltaic system comprising a roof hook structure (10) as described in any one of claims 1 to 18.

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