Photovoltaic panel fastener and installation device for photovoltaic panel module

Abstract

The present invention provides a photovoltaic panel fastener and an installation device for a photovoltaic panel module. The photovoltaic panel fastener is used to cooperate with a threaded fastener to attach an assembly frame of a photovoltaic panel to a support structure. The photovoltaic panel fastener includes a main body portion; a threaded engagement portion that extends perpendicularly from the main body portion and has a passage for accommodating the threaded fastener, and an internal thread that matches the external thread of the threaded fastener is provided on the inner wall of the passage; a pair of clamping ribs respectively extend from the end face of the main body portion and are symmetrically arranged relative to the central axis of the threaded engagement portion in a first direction; a pair of support ribs are symmetrically arranged relative to the central axis of the threaded engagement portion in a second direction. Each support rib is respectively connected to one clamping rib and extends beyond the free end of the clamping rib, and the second direction is perpendicular to the first direction. The photovoltaic panel fastener of the present invention has a simple structure, a compact layout, and a small occupied space, is easy to position, adjust, install, and disassemble on the support structure and the assembly frame, saves the installation cost, and improves the work efficiency.

Description

Technical Field

[0001] The present invention generally relates to a fastener. More specifically, it relates to a photovoltaic panel fastener for attaching a photovoltaic panel module to a support structure, and an installation device for a photovoltaic panel module having the photovoltaic panel fastener. Background Art

[0002] Compared with conventional energy sources, solar energy is convenient to use and has low cost. Photovoltaic panels are used to directly convert solar energy into electrical energy to supply power to electrical devices or transmit electrical energy to the power grid to meet the electricity demand. Generally, an assembly frame for holding a fixed photovoltaic panel is installed on a support structure, guide rail or beam on a building roof, or installed on the ground through threaded fasteners and brackets.

[0003] As Figure 1 shown, currently, the assembly frame 10 of a photovoltaic panel is mainly fastened to a support structure 20 by cooperation of a bolt 30 and a nut 40. The nut 40 is usually placed in a cavity of the assembly frame 10. The bolt 30 is inserted into the support structure 20 and cooperates with the nut 40 placed in the assembly frame 10, thereby fastening the assembly frame 10 to the support structure 20. Since the space for accommodating the nut 40 in the assembly frame 10 is small, it is not conducive to accurately positioning the nut 40 during the installation process, making it difficult to quickly find the position where the bolt 30 and the nut 40 are aligned. In addition, during the installation process, the nut 40 is prone to rotate in the assembly frame 10, and the tightening force cannot be controlled, resulting in a time-consuming and laborious installation process and unable to ensure the stability of the assembly. Summary of the Invention

[0004] The object of the present invention is to propose a photovoltaic panel fastener with a simple structure and convenient operation to effectively reduce labor and production costs in view of the above deficiencies in the prior art.

[0005] To this end, according to one aspect of the present invention, there is provided a photovoltaic panel fastener configured to cooperate with a threaded fastener to attach an assembly frame of a photovoltaic panel to a support structure. The photovoltaic panel fastener includes: a main body portion substantially parallel to an installation plane of the support structure; a threaded engagement portion extending perpendicularly from the main body portion and having a passage for receiving the threaded fastener, the inner wall of the passage being provided with an internal thread that mates with an external thread of the threaded fastener; a pair of clamping ribs respectively extending from an end face of the main body portion and symmetrically arranged along a first direction with respect to the central axis of the threaded engagement portion to be adapted to clamp the assembly frame; and a pair of support ribs symmetrically arranged along a second direction with respect to the central axis of the threaded engagement portion, wherein each support rib is respectively connected to a clamping rib and extends beyond a free end of the clamping rib to be adapted to abut against the installation plane of the support structure, and the second direction is perpendicular to the first direction.

[0006] By directly providing the threaded engagement portion adapted to the threaded fastener on the photovoltaic panel fastener, it is only necessary to operate the threaded fastener to screw it into the threaded engagement portion to achieve quick connection and fixation, without the need to operate the threaded engagement portion in the assembly frame, which is convenient for installation and disassembly, saving labor and time costs. Moreover, the support ribs and the clamping ribs are symmetrically arranged in two mutually perpendicular directions respectively, which can make the structure of the photovoltaic panel fastener more compact and obtain improved overall strength.

[0007] According to the above technical concept, the present invention may further include any one or more of the following optional forms.

[0008] In some optional forms, the threaded engagement portion and the pair of clamping ribs are arranged on the same side of the main body portion, and the distance between the pair of support ribs does not interfere with the outer circumference of the threaded engagement portion; or the threaded engagement portion and the pair of clamping ribs are respectively arranged on both sides of the main body portion, and the distance between the pair of support ribs is less than the outer diameter of the mating threaded fastener.

[0009] In some optional forms, the support rib is configured to be substantially U-shaped, including a first support portion extending towards the main body portion, a second support portion for abutting against the installation plane of the support structure, and a support connection portion between the first support portion and the second support portion; wherein, the second support portion and the clamping rib are connected by an arc transition portion.

[0010] In some optional forms, the arc transition portion bends inward from the free end of the clamping rib and extends to the second support portion.

[0011] In the present invention, the unique structure of the support rib enables an increased contact area between the support rib and the mounting plane of the supporting structure, thereby enhancing the support stability. In addition, the support rib and the clamping rib are connected by an arc transition portion, which helps to obtain the desired fastening strength.

[0012] In some alternative forms, reinforcing ribs extending from the first support portion to the second support portion are provided on the support rib.

[0013] In some alternative forms, notches are provided on the clamping rib to reduce the rigidity of the clamping rib.

[0014] In some alternative forms, the photovoltaic panel fastener is configured to include a pre-installed state and a fastened state. In the pre-installed state, a first gap exists between the support rib and the main body portion. In the fastened state, the support rib is pressed against the main body portion under the action of a fastening force.

[0015] The setting of the first gap not only provides a visual inspection effect of the support rib in different states. When the support rib presses against the main body portion, the main body portion simultaneously provides a supporting effect, further strengthening the overall strength of the photovoltaic panel fastener.

[0016] In some alternative forms, the fastening force is applied by screwing the threaded fastener along the channel into the threaded engagement portion.

[0017] According to another aspect of the present invention, there is provided an installation device for a photovoltaic panel module, including an assembly frame for installing a photovoltaic panel, a supporting structure, and at least one of the above-mentioned photovoltaic panel fasteners. The assembly frame includes a frame main body and a photovoltaic panel card slot provided at the top of the frame main body. The frame main body includes a cavity with a slot for accommodating the photovoltaic panel fastener. A pair of clamping ribs of the photovoltaic panel fastener are configured to be inserted from the slot and stopped by an inner abutting surface in the cavity. Wherein, when the photovoltaic panel fastener is in the pre-installed state, a second gap exists between the clamping rib and the inner abutting surface. When the photovoltaic panel fastener is in the fastened state, the clamping rib is pressed against the inner abutting surface under the action of a fastening force.

[0018] In some alternative forms, the supporting structure is provided with mounting holes corresponding to the slots, so as to be adapted for a threaded fastener to cooperate with the threaded engagement portion of the photovoltaic panel fastener via the mounting holes and the slots. The fastening force is applied by screwing the threaded fastener from the supporting structure towards the photovoltaic panel fastener into the threaded engagement portion.

[0019] In some alternative forms, the width of the support rib of the photovoltaic panel fastener is configured to be less than or equal to the width of the slot.

[0020] The photovoltaic panel fastener provided by the present invention has a simple structure, a compact layout, and a small occupied space. It is easy to position, adjust, install, and disassemble on the support structure and the assembly frame, saving the installation cost and improving the work efficiency. Applying the photovoltaic panel fastener to the installation device of the photovoltaic panel module can conveniently obtain a stable and reliable installation and is suitable for wide application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features and advantages of the present invention will be better understood through the following optional embodiments described in detail in conjunction with the drawings, where the same reference numerals identify the same or similar components, and among them:

[0022] Figure 1 is a schematic diagram of the installation device of the existing photovoltaic panel module;

[0023] Figure 2a is a perspective schematic diagram of the assembly frame of the photovoltaic panel according to an embodiment of the present invention,

[0024] Figure 2b is Figure 2a a plan schematic diagram of the shown assembly frame;

[0025] Figure 3a is a perspective schematic diagram of the support structure according to an embodiment of the present invention, in which the assembled threaded fasteners are shown, Figure 3b is Figure 3a a plan schematic diagram of the shown support structure;

[0026] Figure 4a is a perspective schematic diagram of the photovoltaic panel fastener according to an embodiment of the present invention, Figure 4b is another perspective schematic diagram of the photovoltaic panel fastener, Figure 4c is a plan schematic diagram of the photovoltaic panel fastener viewed from the support rib angle, Figure 4d is a plan schematic diagram of the photovoltaic panel fastener viewed from the clamping rib angle, Figure 4e is a plan schematic diagram of the photovoltaic panel fastener viewed from above, Figure 4f is a plan schematic diagram of the photovoltaic panel fastener viewed from below;

[0027] Figure 5a is a perspective schematic diagram of the photovoltaic panel fastener installed on the support structure in the first state, Figure 5b is Figure 5a a cross-sectional schematic diagram in the shown state, Figure 5c is Figure 5a another cross-sectional schematic diagram in the shown state;

[0028] Figure 6a is a perspective schematic diagram of the assembly frame installed on the support structure and the photovoltaic panel fastener accommodated in its cavity in the second state, Figure 6b is Figure 6aCross-sectional schematic view in the state shown;

[0029] Figure 7a is a perspective schematic view of the photovoltaic panel fastener and the threaded fastener in the third state to firmly connect the assembly frame and the support structure, Figure 7b is Figure 7a Cross-sectional schematic view in the state shown. Detailed implementation manners

[0030] The implementation and use of the embodiments will be discussed in detail below. However, it should be understood that the specific embodiments discussed are merely illustrative of specific ways of implementing and using the present invention, rather than limiting the scope of the present invention. The descriptions of the structural positions of various components, such as the directions of up, down, top, bottom, etc., are not absolute but relative. When the components are arranged as shown in the figures, these direction descriptions are appropriate, but when the positions of the components in the figures change, these direction descriptions also change accordingly.

[0031] The photovoltaic panel fastener according to the present invention is used to firmly connect the assembly frame of the photovoltaic panel and the support structure. In the embodiments described below, an assembly frame and a support structure are exemplarily shown. However, it should be understood that the photovoltaic panel fastener of the present invention is also applicable to assembly frames and support structures with other similar structures.

[0032] First, refer to Figure 2a and Figure 2b , which shows a form of the assembly frame 10. The assembly frame 10 is, for example, a long-strip box structure, including a frame body 11 and a photovoltaic panel slot 12 provided at the top of the frame body 11. The frame body 11 includes a cavity 112 with a slot 111 for accommodating the photovoltaic panel fastener. The slot 111 extends, for example, along the length of the assembly frame 10. Among them, one side of the frame body 11 with the slot 111 includes an outer contact surface 113 adapted to contact the support structure, and an inner abutting surface 114 located in the cavity 112, and the inner abutting surface 114 is used to cooperate with the corresponding components of the photovoltaic panel fastener.

[0033] Figure 3a and Figure 3b show a form of the support structure 20. The support structure 20 is, for example, a C-shaped bearing beam, including an installation plane 21 adapted to contact the outer contact surface 113 of the assembly frame 10. Among them, an installation hole corresponding to the slot 111 is provided on the installation plane 21 ( Figure 5cThe mounting holes 22) therein are for mounting threaded fasteners. Optionally, the threaded fastener is the bolt 30 with a nut 31 as shown in the figure. In some embodiments, a gasket 50 is provided between the nut 31 of the bolt 30 and the support structure 20. The stud section of the bolt 30 can cooperate with the photovoltaic panel fastener via the mounting hole 22 and the slot 111 of the assembly frame 10, thereby tightly connecting the assembly frame 10 and the support structure 20.

[0034] According to the concept of the present invention, the threaded joint is integrated on the photovoltaic panel fastener. By operating the bolt on the support structure, the engagement between the bolt and the threaded joint can be achieved, thus converting the operating space from the narrow space on the assembly frame to the larger space on the support structure, which is convenient for the operator to assemble and disassemble and is easy to operate. In addition, compared with the existing structure, the photovoltaic panel fastener of the present invention has increased overall strength, making the assembled photovoltaic panel module more stable and reliable and capable of adapting to various application environments.

[0035] Figures 4a to 4f A photovoltaic panel fastener 60 of an embodiment is shown. The photovoltaic panel fastener 60 mainly includes a main body portion 61, a threaded joint portion 62, a pair of clamping ribs 63 and a pair of support ribs 64. Among them, the main body portion 61 is substantially parallel to the mounting plane 21 of the support structure 20, and the threaded joint portion 62 extends perpendicularly to the main body portion 61 and has a channel 622 ( Figure 4e ) for accommodating the bolt 30. The inner wall of the channel 622 is provided with an internal thread 621 that cooperates with the external thread 32 ( Figure 5b ) of the bolt 30. As shown in Figure 4c , a pair of clamping ribs 63 respectively extend from the end face of the main body portion 61 and are symmetrically arranged along the first direction D1 with respect to the central axis X-X of the threaded joint portion 62 for clamping the assembly frame 10. As shown in Figure 4d , a pair of support ribs 64 are symmetrically arranged along the second direction D2 with respect to the central axis X-X of the threaded joint portion 62. Each support rib 64 is respectively connected to a clamping rib 63 and extends beyond the free end of the clamping rib 63 for abutting against the mounting plane 21 of the support structure 20, where the second direction D2 is perpendicular to the first direction D1, as shown in Figure 4e . In this way, the clamping ribs and the support ribs can be arranged in a compact manner, making the space occupied by the photovoltaic panel fastener smaller, especially suitable for the narrow space in the assembly frame. In addition, the symmetric arrangement of the clamping ribs and the support ribs also makes the structural design simpler, and at the same time, the force is more uniform when playing the roles of support and clamping. In the following description, for clarity, only one clamping rib and one support rib are described.

[0036] In the illustrated embodiment, the threaded engagement portion 62 is exemplarily shown in the form of a nut having a circular cross-section. It should be understood that the outer peripheral shape of the threaded engagement portion is not limited to that shown in the figure and may also be square or other shapes, as long as its internal thread is adapted to cooperate with the external thread of the bolt.

[0037] In some embodiments not shown, the threaded engagement portion 62 and a pair of clamping ribs 63 may be arranged on the same side of the main body portion 61, that is, both are located below the main body portion 61 in the orientation shown in the figure, so as to further reduce the appearance size of the photovoltaic panel fastener. In this way, the distance between a pair of support ribs 64 does not interfere with the outer periphery of the threaded engagement portion. In the illustrated embodiment, the threaded engagement portion 62 and a pair of clamping ribs 63 are respectively arranged on both sides of the main body portion 61. In this way, advantageously, the distance between a pair of support ribs 64 is made smaller than the outer diameter of the mating bolt 30. Thus, in some cases, by sleeving the photovoltaic panel fastener on Figure 3a and Figure 3b the shown bolt 30, the end of the bolt 30 is inserted between the support ribs 64 and held, so that the photovoltaic panel fastener 60 can be directly pre-mounted on the support structure 20.

[0038] Combined with Figures 4a to 4f and Figure 5b shown, in some embodiments, the support rib 64 is configured to be generally U-shaped, including a first support portion 641 extending towards the main body portion 61, a second support portion 642 for abutting against the mounting plane 21 of the support structure 20, and a support connection portion 643 between the first support portion 641 and the second support portion 642. Among them, the second support portion 642 is connected to the clamping rib 63 through an arc transition portion 65. In this way, through the second support portion 642, the contact area between the support rib 64 and the mounting plane 21 of the support structure 20 is increased, and a reliable support effect can be obtained. The method of connecting the support rib 64 and the clamping rib 63 by the arc transition portion 65 is also helpful to obtain the desired fastening strength, which will be more clearly understood in combination with the following detailed description. Advantageously, as Figure 4c shown, the arc transition portion 65 bends inward from the free end of the clamping rib 63 and extends to the second support portion 642. In this way, the support rib 64 will not interfere with the clamping rib 63 when deforming under force. Moreover, this also enables the width of the support rib 64 to be configured to be less than or equal to the width of the slot 111 of the assembly frame 10, without affecting the installation with the assembly frame 10.

[0039] To increase the structural strength of the support rib 64, a reinforcing rib 644 extending from the first support portion 641 to the second support portion 642 is advantageously provided on the support rib 64. Optionally, the reinforcing rib 644 may continuously extend from the first support portion 641 through the support connection portion 643 and to the second support portion 642 as shown in the figure; alternatively, the reinforcing rib may be formed as a multi-segment structure with discontinuous extension, that is, independent reinforcing ribs are respectively formed on the first support portion 641, the support connection portion 643, and the second support portion 642, which can also play a role in increasing the strength of the support rib.

[0040] In some embodiments, the clamping rib 63 is provided with a notch to reduce the rigidity of the clamping rib. As Figure 4a and Figure 4b shown in the embodiment, the notch 66 may be formed at the free end of the clamping rib 63 and adjacent to the arc transition portion 65, which helps to reduce the required insertion force when the assembly frame 10 and the photovoltaic panel fastener 60 are assembled. As an option, more than one notch may be provided, and the notch may be provided at any appropriate position on the clamping rib. For example, the notch may be formed by opening at the middle position of the clamping rib.

[0041] The photovoltaic panel fastener according to the present invention is advantageously configured to include a pre-installed state and a fastened state. As can be seen from Figure 4c , when the photovoltaic panel fastener is not in the fastened state, that is, in the pre-installed state, the U-shaped structure of the support rib 64 forms a first gap d1 between the first support portion 641 and the main body portion 61. Once a fastening force is applied and it is in the fastened state, the first support portion 641 will press against the main body portion 61 under the action of the fastening force, and the first gap d1 is visually invisible. In other words, the main body portion 61 assists in providing a supporting effect, and from the perspective of the operator, it can be intuitively known whether the fastening is in place by whether the first gap d1 disappears, so as to controllably apply the fastening force and avoid the drawback of over-applying force and causing damage to the components. In some embodiments, the above-mentioned fastening force is applied by screwing the bolt 30 into the threaded engagement portion 62 along the channel 622 of the threaded engagement portion 62, which will be described in detail below.

[0042] The following will be described in conjunction with Figures 5a to 7b the operation mode of the photovoltaic panel fastener according to an embodiment of the present invention when applied to the installation device of a photovoltaic panel module.

[0043] In the shown embodiment, the installation device of the photovoltaic panel module includes the assembly frame 10, the support structure 20, and the photovoltaic panel fastener 60 as described above. When the bolt 30 has been installed on the support structure 20 as shown in Figure 3a and Figure 3b , as shown in Figures 5a to 5cAs shown, the photovoltaic panel fastener 60 can be sleeved onto the stud section of the bolt 30 from above the mounting plane 21 of the support structure 20, such that the bolt 30 meshes with a partial internal thread 621 of the thread engagement portion 62, while from Figure 5b As can be seen, the bolt 30 is clamped by the support connection portions 643 of a pair of support ribs. At this time, the photovoltaic panel fastener 60 is in a first state of preliminary positioning, or an unloaded pre-assembled state, and there is a first gap d1 between the first support portion 641 of the support rib 64 and the main body portion 61, as Figure 5b shown, while at the same time the second support portion 642 is in contact with the mounting plane 21 of the support structure 20 without being stressed. Moreover, the operator can manually rotate the photovoltaic panel fastener to place it in a desired direction. Due to this structural design and corresponding operation method, as described above, in some embodiments, it is possible to consider the photovoltaic panel fastener 60 and the support structure 20 as pre-assembled components. For example, a plurality of matching bolts 30 and photovoltaic panel fasteners 60 can be pre-assembled on the support structure 20, so as to be conveniently applicable to a variety of different assembly occasions. For example, a photovoltaic panel is usually a rectangular structure, and at least four photovoltaic panel fasteners 60 on two support structures 20 are required to fix the photovoltaic panel. The above-mentioned pre-assembled components can effectively reduce the assembly time and save labor costs at the initial stage of assembly.

[0044] In subsequent operations, as Figures 6a to 6b shown, the assembly frame 10 is inserted downward from above the photovoltaic panel fastener along the Figure 6a arrow direction in the figure. As described above, the clamping ribs 63 are configured to clamp the assembly frame 10. For this purpose, a pair of clamping ribs 63 of the photovoltaic panel fastener can be constructed to be adapted to be stopped by the inner abutting surface 114 in the cavity 112 after being inserted through the slot. That is, when the assembly frame 10 is inserted downward, its bottom will contact and squeeze the surfaces of a pair of clamping ribs 63, thereby causing a pair of clamping ribs 63 to deform towards each other until the assembly frame 10 completely passes through and its outer contact surface 113 at the bottom contacts the mounting plane 21 of the support structure. The clamping ribs 63 are reset and stopped by the inner abutting surface 114. This is also the reason for providing notches on the clamping ribs 63 to reduce rigidity, so that the assembly frame is easy to insert. At this time, the photovoltaic panel fastener is in a second state of being assembled in the cavity of the assembly frame, but still in an unloaded pre-assembled state, and there is a first gap d1 between the first support portion 641 and the main body portion 61. Moreover, from Figure 6a and Figure 6b as can be seen, a second gap d2 is also formed between the clamping ribs 63 and the inner abutting surface 114. Therefore, the assembly frame 10 can move horizontally along the mounting plane 21, for example, in the Figure 6b shown orientation to adjust the position, so as to ensure the accuracy of positioning.

[0045] After the positioning is in place, as Figure 7a andFigure 7b As shown, the operator can further rotate the bolt 30 upward along the arrow direction from below the support structure, so that the threaded engagement portion 62 of the photovoltaic panel fastener moves downward under the action of thread engagement until the clamping rib 63 presses against the inner abutting surface 114 of the assembly frame 10, and the second gap d2 is invisible. At the same time, torque is applied during the rotation of the bolt to obtain the desired fastening strength. Due to the setting of the arc transition portion, when torque is applied to deform the support rib, the arc transition portion will also deform accordingly, thereby giving the support rib a wider deformation range, that is, the fastening force range. Moreover, compared with rigid contact, the existence of the arc transition portion also makes the bolt 30 not easily fail after fastening. At this time, the photovoltaic panel fastener is in the third state of firmly connecting the assembly frame 10 and the support structure 20, that is, the fastening state of applying the fastening action. As can be seen from the figure, the first gap d1 is no longer visible, and the first support portion 641 abuts against the main body portion 61, strengthening the overall strength of the photovoltaic panel fastener and making the fastening action more stable and reliable. And, in the fastening state, the existence of the arc transition portion also makes the assembly frame have a certain elastic variable in the fastening direction, further achieving the effect of anti-vibration.

[0046] Conversely, when a disassembly operation needs to be carried out, the bolt 30 can be rotated in the reverse direction below the support structure 20, so that the threaded engagement portion 62 of the photovoltaic panel fastener 60 moves upward and resets to Figure 6a the state shown, and then the disassembly operation can be carried out accordingly, which is convenient and fast. It can be seen that compared with the existing photovoltaic panel fastening method, the photovoltaic panel fastener according to the present invention has a simple structure and is easy to manufacture. Only a small force and simple operation are required during the installation process to obtain a firm connection, and it has a wide application.

[0047] It should be understood here that the embodiments shown in the figures only show the optional architectures, shapes, sizes and arrangement ways of the optional components of the photovoltaic panel fastener and the installation device of the photovoltaic panel module according to the present invention. However, they are only illustrative and not restrictive. Without departing from the idea and scope of the present invention, other shapes, sizes and arrangement ways can also be adopted.

[0048] The technical content and technical features of the present invention have been disclosed above. However, it can be understood that under the creative idea of the present invention, those skilled in the art can make various changes and improvements to the above-disclosed conceptions, but they all belong to the protection scope of the present invention. The description of the above embodiments is illustrative rather than restrictive, and the protection scope of the present invention is determined by the claims.

Claims

1. A photovoltaic panel fastener configured to cooperate with a threaded fastener to attach an assembly frame of a photovoltaic panel to a support structure, characterized in that, The photovoltaic panel fastener includes: A main body portion that is substantially parallel to the installation plane of the support structure; A threaded engagement portion that extends perpendicularly from the main body portion and has a channel for receiving the threaded fastener, and the inner wall of the channel is provided with an internal thread that mates with the external thread of the threaded fastener; A pair of clamping ribs that respectively extend from the end face of the main body portion and are symmetrically arranged along a first direction with respect to the central axis of the threaded engagement portion to be adapted to clamp the assembly frame; and A pair of support ribs that are symmetrically arranged along a second direction with respect to the central axis of the threaded engagement portion, wherein each support rib is respectively connected to a clamping rib and extends beyond the free end of the clamping rib to be adapted to abut against the installation plane of the support structure, and the second direction is perpendicular to the first direction.

2. The photovoltaic panel fastener according to claim 1, characterized in that, The threaded engagement portion and the pair of clamping ribs are arranged on the same side of the main body portion, and the distance between the pair of support ribs does not interfere with the outer periphery of the threaded engagement portion; or the threaded engagement portion and the pair of clamping ribs are respectively arranged on both sides of the main body portion, and the distance between the pair of support ribs is less than the outer diameter of the mating threaded fastener.

3. The photovoltaic panel fastener according to claim 1, wherein, The support rib is configured to be substantially U-shaped and includes a first support portion extending toward the main body portion, a second support portion for abutting against the installation plane of the support structure, and a support connection portion between the first support portion and the second support portion; wherein, the second support portion is connected to the clamping rib through an arc transition portion.

4. The photovoltaic panel fastener according to claim 3, wherein, The arc transition portion bends inward from the free end of the clamping rib and extends to the second support portion.

5. The photovoltaic panel fastener according to claim 3, characterized in that, The support rib is provided with a reinforcing rib extending from the first support portion to the second support portion.

6. The photovoltaic panel fastener according to claim 2, characterized in that, The clamping rib is provided with a notch to reduce the rigidity of the clamping rib.

7. The photovoltaic panel fastener according to any one of claims 1 to 6, characterized in that, The photovoltaic panel fastener is configured to include a pre-installed state and a tightened state. In the pre-installed state, there is a first gap between the support rib and the main body portion. In the tightened state, the support rib presses against the main body portion under the action of the tightening force.

8. The photovoltaic panel fastener according to claim 7, wherein, The tightening force is applied by screwing the threaded fastener into the threaded engagement portion along the channel.

9. An installation device for a photovoltaic panel module, comprising an assembly frame for installing a photovoltaic panel, a support structure, and at least one photovoltaic panel fastener according to any one of claims 1 to 8, characterized in that, The assembly frame includes a frame main body and a photovoltaic panel card slot provided at the top of the frame main body. The frame main body includes a cavity with a slot for receiving the photovoltaic panel fastener, and the pair of clamping ribs of the photovoltaic panel fastener are configured to be adapted to be stopped by an inner abutting surface in the cavity after being inserted from the slot; Wherein, when the photovoltaic panel fastener is in the pre-installed state, there is a second gap between the clamping rib and the inner abutting surface. When the photovoltaic panel fastener is in the tightened state, the clamping rib presses against the inner abutting surface under the action of the tightening force.

10. The installation device of the photovoltaic panel module according to claim 9, characterized in that, The support structure is provided with an installation hole corresponding to the slot to be adapted for the threaded fastener to cooperate with the threaded engagement portion of the photovoltaic panel fastener via the installation hole and the slot, and the tightening force is applied by screwing the threaded fastener from the support structure toward the photovoltaic panel fastener into the threaded engagement portion.

11. The mounting device for a photovoltaic panel module according to claim 9, characterized in that, The width of the support rib of the photovoltaic panel fastener is configured to be less than or equal to the width of the slotted opening.

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