Photovoltaic support assembly fixing device and edge block assembly

Abstract

This utility model discloses a photovoltaic bracket assembly fixing device and a side pressure block assembly, belonging to the technical field of photovoltaic brackets. It is used to fix photovoltaic panels onto a bracket, including a middle pressure block assembly and U-bolts. The middle pressure block assembly includes two pressure tongues, each with a side plate fixedly installed on the side of its lower end face that is close to each other. A connecting plate is fixedly installed between the two side plates. In use, the photovoltaic panels are laid on the purlins, and then the middle pressure block assembly is inserted between the two photovoltaic panels, causing the two pressure tongues to press against the edges of the photovoltaic panels. The two prongs of the U-bolt pass through the through holes in the connecting plate from top to bottom, and then through a corresponding set of mounting holes on the purlin. Fixing nuts are then screwed onto the two prongs of the U-bolt, causing the U-bolt to move downwards. This movement, along with the connecting plate, causes the two pressure tongues to move downwards, pressing the photovoltaic panels on both sides firmly against the purlins, thus fixing the photovoltaic panels. This effectively reduces the problem of single bolt breakage.

Description

Technical Field

[0001] This utility model belongs to the technical field of photovoltaic brackets, and particularly relates to a photovoltaic bracket component fixing device and an edge pressure block component. Background Technology

[0002] There are various methods for installing photovoltaic modules, each with its unique application scenarios and advantages and disadvantages. Firstly, rooftop installation is very common, and it includes flat and sloped installations. It makes full use of roof space without occupying ground resources, but attention must be paid to the roof's load-bearing capacity and stability. Secondly, ground-mounted installation is suitable for large projects, as it does not require consideration of load-bearing capacity and is simple to construct, but it occupies ground space and requires enhanced security measures.

[0003] There are generally three installation methods for photovoltaic (PV) modules: bolt fixing, clamp fixing, and bolt + clamp fixing. Among these, the bolt + clamp fixing method offers a higher safety factor and can withstand various severe weather conditions. PV modules are connected to the bracket purlins via clamps. PV bracket clamps are divided into center clamps and edge clamps. The clamps primarily serve to fix the PV modules, prevent displacement relative to the purlins, and ensure stable installation. Based on the PV project design and load data, the proper use of clamps can meet requirements for wind resistance, tensile strength, and deformation. However, in extreme weather, PV modules are frequently blown away. As the main component directly preventing PV panels from being blown away, the performance of the PV bracket clamps becomes particularly important. Currently, clamps on the market mainly use clamping tongues to restrain the PV modules. These tongues are only fixed to the purlins with a single bolt. Strong winds can exert significant torque on the clamps, causing the clamps to generate large shear stresses on the bolts, potentially leading to bolt breakage and clamp detachment. Furthermore, significant torque on the clamps can also cause deformation. Utility Model Content

[0004] The purpose of this invention is to provide a photovoltaic bracket assembly fixing device and a side pressure block assembly, which has the advantages of stable fixing and reduced shear stress on the bolts, effectively reducing the problem of bolt breakage caused by pressure block stress in the prior art.

[0005] This utility model adopts the following technical solution: a photovoltaic bracket assembly fixing device for fixing photovoltaic panels on a bracket assembly, including a middle pressure block assembly and U-bolts. The middle pressure block assembly includes two pressure tongues, and a side plate is fixedly provided on the side of the lower end face of each pressure tongue that is close to each other. A connecting plate is fixedly provided between the two side plates, and two through holes are opened on the connecting plate. The bracket assembly includes purlins, which are square steel pipes. The upper end face of the square steel pipe has a notch along the length direction, and the lower end face of the purlin has multiple sets of mounting holes, with two mounting holes in each set.

[0006] Furthermore, a support plate is fixedly installed at the bottom of each side plate, and several L-plates are fixedly installed on the lower end face of the photovoltaic panel frame. There are two support plates, which are fixedly installed on the front and rear sides of the side plate respectively. Light holes are opened on the horizontal part of the L-plate. The photovoltaic panel frame and the L-plate are located between the pressure tongue and the support plate. Fastening bolts are inserted into the light holes of the L-plates. The bottom end of the fastening bolt extends downward through the gap between the two support plates and enters the purlin through the notch of the purlin. A rectangular block is fitted on the fastening bolt, and a fastening nut is threaded on the fastening bolt.

[0007] Furthermore, a washer is provided between the nut of the fastening bolt and the L-plate. Two clamping plates are fixedly provided at the right end of the washer, which are horizontal to the washer. A sandwich space is formed between the clamping plates and the washer. The horizontal part of the L-plate is located in the sandwich space between the clamping plates and the washer. The clamping plates are located between the horizontal part of the L-plate and the support plate. The upper end face of the support plate and the lower end face of the horizontal part of the L-plate are both provided with serrated protrusions. A round hole is provided on the upper end face of the washer.

[0008] Furthermore, the upper end face of the pallet is provided with a mating plane, and serrated protrusions are provided on the mating plane; the clamping plate of the pad is located on the mating plane of the pallet, and the upper end face of the clamping plate is flush with the upper end face of the pallet.

[0009] Furthermore, each of the two pallets has a vertical plate fixedly installed on one of their adjacent sides, and each vertical plate is slidably connected to the corresponding side plate in the vertical direction.

[0010] A side clamping block assembly includes a clamping block and a U-bolt. A support plate is fixedly installed at the outer end of the clamping block, and a mounting plate is fixedly installed at the bottom end of the support plate. Two base plates are fixedly installed on the lower end face of the mounting plate through a vertical plate. An installation space is formed between the base plates and the clamping block. Two insertion holes are opened on the mounting plate.

[0011] Furthermore, the outer end of the mounting plate is slidably mounted on the vertical plate in the vertical direction.

[0012] Furthermore, the edge pressure block assembly also includes a U-shaped pad, which comprises two horizontal plates fixed to each other. The lower horizontal plate consists of two horizontally arranged pressure strips, and the upper horizontal plate has vertical holes.

[0013] Furthermore, each base plate has a receiving platform on its upper surface, and regular protrusions are fixedly provided on the upper surface of the receiving platform and the lower surface of the pressure strip of each base plate.

[0014] Furthermore, the saddle bolts and U-bolts located below the purlins are each fitted with a base block, and the fixing nut is located below the base block and is threadedly connected to the saddle bolt or U-bolt.

[0015] I. This utility model, through the setting of purlins, pressure tongues, connecting plates, and U-bolts, allows for the following operation: photovoltaic panels are laid on the purlins, then the medium-pressure block assembly is inserted between two photovoltaic panels, with the two pressure tongues pressing against the edges of the photovoltaic panels. The two prongs of the U-bolt pass through the through holes in the connecting plate from top to bottom, and then through a corresponding set of mounting holes on the purlin. Fixing nuts are then screwed onto the two prongs of the U-bolt, causing the U-bolt to move downwards. This movement, along with the connecting plate, causes the two pressure tongues to move downwards, pressing the photovoltaic panels on both sides firmly against the purlin, thus securing the photovoltaic panels. The U-bolt fixing effectively counteracts the shear stress on a single bolt in existing technologies, significantly reducing the risk of single bolt breakage.

[0016] II. By setting up an L-plate and a support plate, this utility model ensures that the photovoltaic panel frame and the L-plate are positioned between the pressure tongue and the support plate during use. A fastening bolt is inserted into the light hole of the L-plate. The bottom end of the fastening bolt extends downward through the gap between the two support plates and enters the purlin through the notch. A rectangular block is fitted onto the fastening bolt, and a fastening nut is threaded onto the fastening bolt. By tightening the fastening nut, the rectangular block abuts against the flanges on both sides of the purlin notch, thereby fixing the L-plate to the purlin and thus fixing the photovoltaic panel to the purlin. Furthermore, when the pressure tongue experiences significant torque due to strong winds, the support plate and the L-plate can share the torque generated by the pressure tongue, effectively reducing the torque on the pressure tongue and the probability of deformation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0018] Figure 2 This is a top view of the structure of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the purlin and photovoltaic panel in the installation state of this utility model;

[0020] Figure 4 This is a front view schematic diagram of the structure in this utility model;

[0021] Figure 5 In this utility model Figure 4 Enlarged schematic diagram of the structure at point A in the diagram;

[0022] Figure 6 This is a three-dimensional structural diagram of the photovoltaic panel in this utility model;

[0023] Figure 7 This is a schematic diagram of the internal three-dimensional structure of the purlin in this utility model;

[0024] Figure 8This is a schematic diagram of the three-dimensional structure of the tongue depressor in this utility model;

[0025] Figure 9 This is a three-dimensional structural diagram of the pad and clamp in this utility model;

[0026] Figure 10 This is a three-dimensional structural diagram of the pad in this utility model;

[0027] Figure 11 This is a front view schematic diagram of the tongue depressor structure in this utility model;

[0028] Figure 12 This is a schematic diagram of the three-dimensional structure of the base block in this utility model;

[0029] Figure 13 This is a three-dimensional structural diagram of the edge pressure block assembly in this utility model;

[0030] Figure 14 This is a three-dimensional structural diagram of the clamping block in this utility model;

[0031] Figure 15 This is a three-dimensional structural diagram of the U-shaped pad in this utility model;

[0032] Figure 16 This is a three-dimensional structural diagram of the mounting plate in this utility model.

[0033] In the diagram, 1. Photovoltaic panel; 2. U-bolt; 3. Pressure tongue; 4. Side plate; 5. Connecting plate; 6. Through hole; 7. Purlin; 8. Notch; 10. Frame; 11. Fixing nut; 12. Support plate; 13. L-plate; 14. Fastening bolt; 15. Rectangular block; 16. Fastening nut; 17. Flange; 18. Pad; 19. Clamping plate; 20. Round hole; 21. Mating plane; 22. Vertical plate; 23. Clamping block; 24. U-bolt; 25. Support plate; 26. Mounting plate; 27. Vertical plate; 28. Base plate; 29. ​​Insertion hole; 30. U-shaped pad; 31. Horizontal plate; 32. Pressure strip; 33. Receiving platform; 34. Vertical hole; 35. Base block. Detailed Implementation

[0034] Please see Figure 1-16 The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0035] The photovoltaic support assembly fixing device of this utility model is used to fix the photovoltaic panel 1 to the support assembly. It includes a central pressure block assembly and U-bolts 2. The central pressure block assembly includes two pressure tongues 3. A side plate 4 is fixedly installed on the side of each pressure tongue 3 that is close to each other. A connecting plate 5 is fixedly installed between the two side plates 4. The connecting plate 5 has two through holes 6. The support assembly includes purlins 7, which are square steel pipes. A notch 8 is opened along the length direction on the upper end face of the square steel pipe. Multiple sets of mounting holes are opened on the lower end face of the purlins 7, with two mounting holes in each set. In use, first, the purlins 7 are erected and fixed, with each purlin 7 arranged parallel to the others. Then, the photovoltaic panel 1 is laid on the purlins 7. The rear middle pressure block assembly is inserted between the two photovoltaic panels 1, and the two pressure tongues 3 press against the frame 10 of the photovoltaic panel 1 respectively. Then, the two feet of the U-bolt 2 pass through the through hole 6 of the connecting plate 5 from top to bottom, and then through the corresponding set of mounting holes on the purlin 7. Then, the fixing nuts 11 are screwed on the two feet of the U-bolt 2, so that the U-bolt 2 moves downward and drives the two pressure tongues 3 to move downward through the connecting plate 5, so that the two pressure tongues 3 press the photovoltaic panels 1 on both sides onto the purlin 7, thereby fixing the photovoltaic panels 1. In windy weather, the pressure tongues 3 are subjected to a large torque, which in turn causes the torque of the pressure tongues 3 to act on the U-bolt 2, and the U-bolt 2 can effectively offset the received shear stress.

[0036] In this embodiment, a support plate 12 is fixedly installed at the bottom of each side plate 4, and several L-plates 13 are fixedly installed on the lower end face of the frame 10 of the photovoltaic panel 1. There are two support plates 12, which are respectively fixedly installed on the front and rear sides of the side plate 4. Light holes are opened on the horizontal part of the L-plates 13. During installation, the frame 10 of the photovoltaic panel 1 and the L-plates 13 are positioned between the pressure tongue 3 and the support plate 12. Fastening bolts 14 are inserted into the light holes of the L-plates 13. The bottom end of the fastening bolts 14 extends downward through the gap 8 of the purlin 7 between the two support plates 12 and enters the purlin 7. A rectangular block 15 is fitted on the fastening bolt 14, and a fastening nut 16 is threaded onto the fastening bolt 14. The fastening nut 16 is screwed on the fastening bolt 14. The tightening nut 16 causes the rectangular block 15 to abut against the flanges 17 on both sides of the notch 8 of the purlin 7, thereby fixing the L plate 13 to the purlin 7 and thus fixing the photovoltaic panel 1 to the purlin 7. After the photovoltaic panel 1 is fixed by the U-bolt 2, the photovoltaic panel 1 is further fixed by the tightening bolt 14 and the L plate 13, which increases the support area of ​​the photovoltaic panel 1 and can reduce the vibration of the photovoltaic panel 1. In addition, when the pressure tongue 3 is subjected to large torque due to strong winds, the support plate 12 and the L plate 13 can share the torque generated by the pressure tongue 3, effectively reducing the torque on the pressure tongue 3 and effectively reducing the probability of deformation of the pressure tongue 3.

[0037] In this embodiment, a washer 18 is provided between the nut of the fastening bolt 14 and the L-plate 13. Two clamping plates 19, which are horizontal to the washer 18, are fixedly provided at the right end of the washer 18, forming a sandwich space between the clamping plates 19 and the washer 18. The horizontal part of the L-plate 13 is located in the sandwich space between the clamping plates 19 and the washer 18. The clamping plates 19 are located between the horizontal part of the L-plate 13 and the support plate 12. The upper end face of the support plate 12 and the lower end face of the horizontal part of the L-plate 13 are both provided with serrated protrusions. The upper end face of the washer 18 is provided with a round hole 20. During installation, the frame 10 of the photovoltaic panel 1 and the L-plate 13 are inserted between the pressure tongue 3 and the support plate 12. Then, the two clamping plates 19 of the washer 18 are inserted between the horizontal part of the L-plate 13 and the support plate 12, so that the serrated protrusions on the lower end face of the clamping plates 19 and the serrated protrusions on the lower end face of the support plate 12 are seamlessly connected (during this operation, the L-plate 13...). To ensure the sheet metal parts have the desired elasticity, the horizontal portion of the L-plate 13 needs to be bent upwards so that the clamping plate 19 can be smoothly inserted between the horizontal portion of the L-plate 13 and the support plate 12, ensuring that their respective serrated protrusions are seamlessly connected. Then, the fastening bolt 14 is used to pass through the round hole 20 of the pad 18, the light hole of the L-plate 13, between the two clamping plates 19, between the two support plates 12, and the notch 8 of the purlin 7 from top to bottom. A rectangular block 15 is fitted on the fastening bolt 14, and a fastening nut 16 is threaded onto the fastening bolt 14. By tightening the fastening nut 16, the rectangular block 15 is made to abut against the flanges 17 on both sides of the notch 8 of the purlin 7, thereby fixing the L-plate 13 to the purlin 7 and thus fixing the photovoltaic panel 1 to the purlin 7. By setting the pad 18 and the clamping plate 19, the horizontal portion of the L-plate 13 and the support plate 12 are more securely fixed.

[0038] In this embodiment, the upper end face of the support plate 12 is provided with a mating plane 21, and a serrated protrusion is provided on the mating plane 21. In use, the clamping plate 19 of the pad 18 is located on the mating plane 21 of the support plate 12, and the upper end face of the clamping plate 19 is flush with the upper end face of the support plate 12. By setting the mating plane 21, the pad 18, clamping plate 19, L plate 13 and support plate 12 are fixed to each other by fastening bolts 14, and the structure is more compact.

[0039] In this embodiment, upright plates 22 are fixedly installed on the adjacent sides of the two support plates 12, and each upright plate 22 is slidably connected to the corresponding side plate 4 in the vertical direction. In use, the side plate 4 and the pressure tongue 3 are first inserted between the two photovoltaic panels 1, so that the frame 10 and L-plate 13 of the photovoltaic panel 1 enter between the pressure tongue 3 and the support plate 12. Then, the two legs of the U-bolt 2 pass through the through hole 6 of the connecting plate 5 from top to bottom, and then through the corresponding set of mounting holes on the purlin 7. The clamping plate 19 of the pad 18 is inserted between the horizontal part of the L-plate 13 and the support plate 12, and then the fastening bolt 14 is inserted. Then, the fixing nut 11 is screwed on the two legs of the U-bolt 2, and the fastening nut 16 is screwed on the fastening bolt 14. By screwing on the fixing nut 11 and the fastening nut 16, the U-bolt 2 is connected to the photovoltaic panel through the connecting plate 5 and the pressure tongue 3. The frame 10 of the photovoltaic panel 1 is pressed down, so that the fastening bolt 14 presses the pad 18, the horizontal part of the L plate 13, the clamp 19, and the support plate 12 against the purlin 7; the U-bolt 2 and the fastening bolt 14 together fix the photovoltaic panel 1; since the pressure tongue 3 is slidably connected to the vertical plate 22 through the side plate 4, the U-bolt 2 presses down on the frame 10 of the photovoltaic panel 1 through the pressure tongue 3 and the fastening bolt 14 fixes the photovoltaic panel 1 through the L plate 13 to form two independent fixing systems; when the U-bolt 2 drives the pressure tongue 3 to press down on the photovoltaic panel 1, it does not interfere with the fastening bolt 14 fixing the L plate 13. Similarly, the fastening bolt 14 fixes the L plate 13 without interfering with the pressure tongue 3 pressing down on the photovoltaic panel 1. The U-bolt 2 and the fastening bolt 14 fix the photovoltaic panel 1 independently and with mutual assistance, which improves the stability of the photovoltaic panel 1.

[0040] In this embodiment, there are two connecting plates 5.

[0041] An edge clamping block assembly, used in conjunction with a middle clamping block assembly to jointly fix a frame 10, includes a clamping block 23 and U-bolts 24. A support plate 25 is fixedly mounted on the outer end of the clamping block 23, and a mounting plate 26 is fixedly mounted on the bottom end of the support plate 25. Two base plates 28 are fixedly mounted on the lower end face of the mounting plate 26 via a vertical plate 27, forming an installation space between the base plates 28 and the clamping block 23. Two insertion holes 29 are provided on the mounting plate 26. In use, the middle clamping block assembly is used to fix the frame 10 of the photovoltaic panels 1 on both sides between two rows of photovoltaic panels 1, and the edge clamping block assembly is used to fix the frame 10 of the outermost photovoltaic panel 1. When fixing the frame 10 of the outermost photovoltaic panel 1, the clamping block 23 is pressed onto the frame 10 of the photovoltaic panel 1, causing the photovoltaic... The frame 10 of the panel 1 and the L-plate 13 are inserted into the installation space between the clamping block 23 and the base plate 28. Then, the fastening bolt 14 is used to pass downward through the light hole of the L-plate 13 and enter the interior of the purlin 7 between the two base plates 28. Then, the rectangular block 15 is fitted onto the fastening bolt 14 and the fastening nut 16 is screwed on, so that the fastening nut 16 fixes the L-plate 13 to the purlin 7. Then, the two legs of the saddle bolt 24 are inserted into the corresponding insertion holes 29, and the two legs of the saddle bolt 24 extend downward through the installation hole of the purlin 7. Then, the fixing nut 11 is screwed on the two legs of the saddle bolt 24, so that the saddle bolt 24 moves downward, thereby driving the clamping block 23 to move downward to clamp the frame 10 of the outermost photovoltaic panel 1.

[0042] In this embodiment, the outer end of the mounting plate 26 is slidably mounted on the vertical plate 27 in the vertical direction; similar to the middle pressure block assembly, the saddle bolt 24 presses and fastens the frame 10 of the photovoltaic panel 1 through the clamping block 23 and the bolt 14 fixes the photovoltaic panel 1 through the L plate 13. The two fixing methods fix the photovoltaic panel 1 respectively, without interfering with each other, and can assist each other in fixing the photovoltaic panel 1 together, which increases the fixing stability.

[0043] In this embodiment, the edge pressing block assembly also includes a U-shaped pad 30. The U-shaped pad 30 includes two horizontal plates 31 fixed to each other. The lower horizontal plate 31 consists of two horizontally arranged pressing strips 32. Each base plate 28 has a receiving platform 33 on its upper end surface. The upper end surface of the receiving platform 33 and the lower end surface of the pressing strip 32 of each base plate 28 are fixedly provided with regular protrusions. The upper horizontal plate 31 has vertical holes 34. In use, when fixing the outer frame 10 of the photovoltaic panel 1, the pressing block 23 is pressed onto the frame 10 of the photovoltaic panel 1, so that the frame 10 of the photovoltaic panel 1 and the L-plate 13 are inserted into the installation space between the pressing block 23 and the base plate 28. Then, the U-shaped pad 30 is inserted between the L-plate 13 and the base plate 28. The horizontal part of the L-plate 13 is elastic and can be bent upwards, so that the horizontal plate 31 below the U-shaped pad 30 smoothly enters the horizontal part of the L-plate 13. Between the base plate 28 and the bottom plate 28, the lower horizontal plate 31 is located within the receiving platform 33, so that the regular protrusions on the lower horizontal plate 31 and the regular protrusions on the bottom plate 28 are seamlessly connected; then the fastening bolt 14 is used to pass downward through the vertical hole 34 of the upper horizontal plate 31 and the light hole of the L plate 13 and enter the interior of the purlin 7 between the two bottom plates 28. Then the rectangular block 15 is fitted on the fastening bolt 14 and the fastening nut 16 is screwed on, so that the fastening nut 16 fixes the L plate 13 to the purlin 7. Then the two feet of the saddle bolt 24 are inserted into the corresponding insertion holes 29 respectively, so that the two feet of the saddle bolt 24 extend downward through the mounting holes of the purlin 7. Then the fixing nut 11 is screwed on the two feet of the saddle bolt 24, so that the saddle bolt 24 moves downward, thereby driving the clamping block 23 to move downward to press the frame 10 of the outermost photovoltaic panel 1.

[0044] In this embodiment, a base block 35 is fitted on both the saddle bolt 24 and the U-bolt 2 located below the purlin 7. The fixing nut 11 is located below the base block 35 and is threadedly connected to the saddle bolt 24 or the U-bolt 2. The clamping block 23 and the pressure tongue 3, the base plate 28 and the support plate 12, the pressure strip 32 and the clamping plate 19, the U-bolt 2 and the saddle bolt 24 are all the same components, but different names have been used for ease of description.

[0045] The working principle of this utility model is as follows: When assembling the photovoltaic panel 1, the purlins 7 are first fixed, and each purlin 7 is set in parallel. Then, the photovoltaic panel 1 is laid on the purlins 7. The middle pressure block assembly is set between the two rows of photovoltaic panels 1 and fixes the photovoltaic panels 1 on both sides at the same time. The outer photovoltaic panel 1 is fixed by the edge pressure block assembly.

Claims

1. A photovoltaic bracket assembly fixing device for fixing photovoltaic panels (1) onto a bracket assembly, comprising a medium-pressure block assembly and U-bolts (2), characterized in that: The middle pressure block assembly includes two pressure tongues (3), and a side plate (4) is fixedly installed on the side of the lower end face of each pressure tongue (3) that is close to each other. A connecting plate (5) is fixedly installed between the two side plates (4), and two through holes (6) are opened on the connecting plate (5). The bracket assembly includes a purlin (7), which is a square steel pipe. A notch (8) is opened on the upper end face of the square steel pipe along the length direction. Multiple sets of mounting holes are opened on the lower end face of the purlin (7), and each set of mounting holes has two holes.

2. The photovoltaic bracket module fixing device according to claim 1, characterized in that: Each side plate (4) has a support plate (12) fixedly installed at the bottom end. Several L plates (13) are fixedly installed on the lower end face of the frame (10) of the photovoltaic panel (1). There are two support plates (12), which are fixedly installed on the front and rear sides of the side plate (4). Light holes are opened on the horizontal part of the L plate (13). The frame (10) of the photovoltaic panel (1) and the L plate (13) are located between the pressure tongue (3) and the support plate (12). Fastening bolts (14) are inserted into the light holes of the L plate (13). The bottom end of the fastening bolt (14) extends downward through the gap (8) of the purlin (7) and enters the purlin (7). A rectangular block (15) is fitted on the fastening bolt (14). A fastening nut (16) is threaded on the fastening bolt (14).

3. The photovoltaic bracket module fixing device according to claim 2, characterized in that: A washer (18) is provided between the nut of the fastening bolt (14) and the L plate (13). Two clamping plates (19) are fixedly provided at the right end of the washer (18) and are horizontal to the washer (18). A sandwich space is formed between the clamping plates (19) and the washer (18). The horizontal part of the L plate (13) is located in the sandwich space between the clamping plates (19) and the washer (18). The clamping plates (19) are located between the horizontal part of the L plate (13) and the support plate (12). The upper end face of the support plate (12) and the lower end face of the horizontal part of the L plate (13) are provided with serrated protrusions. The upper end face of the washer (18) is provided with a round hole (20).

4. The photovoltaic bracket module fixing device according to claim 3, characterized in that: The upper end face of the tray (12) is provided with a mating plane (21), and a serrated protrusion is provided on the mating plane (21); the clamping plate (19) of the pad (18) is located on the mating plane (21) of the tray (12), and the upper end face of the clamping plate (19) is flush with the upper end face of the tray (12).

5. The photovoltaic bracket module fixing device according to claim 4, characterized in that: Each of the two pallets (12) has a fixed upright plate (22) on one side that is close to each other. Each upright plate (22) is slidably connected to the corresponding side plate (4) in the vertical direction.

6. A side clamping block assembly based on the fixing device described in any one of the preceding claims, for fixing the frame (10) of a photovoltaic panel (1) on one side, comprising a clamping block (23) and a saddle bolt (24), characterized in that: A support plate (25) is fixedly installed on the outer end of the clamping block (23), and an installation plate (26) is fixedly installed on the bottom end of the support plate (25). Two base plates (28) are fixedly installed on the lower end face of the installation plate (26) through the vertical plate (27). An installation space is formed between the base plate (28) and the clamping block (23). Two insertion holes (29) are opened on the installation plate (26).

7. The edge pressing block assembly according to claim 6, characterized in that: The outer end of the mounting plate (26) is slidably mounted on the vertical plate (27) in the vertical direction.

8. The edge pressing block assembly according to claim 7, characterized in that: The edge pressure block assembly also includes a U-shaped pad (30), which includes two horizontal plates (31) fixed to each other. The lower horizontal plate (31) consists of two horizontally arranged pressure strips (32), and the upper horizontal plate (31) has vertical holes (34).

9. The edge pressing block assembly according to claim 8, characterized in that: Each base plate (28) has a receiving platform (33) on its upper surface. The upper surface of the receiving platform (33) and the lower surface of the pressure strip (32) of each base plate (28) are fixedly provided with regular protrusions.

10. The edge pressing block assembly according to claim 6, characterized in that: A base block (35) is fitted on both the saddle bolt (24) and the U-bolt (2) located below the purlin (7). The fixing nut (11) is located below the base block (35) and is threadedly connected to the saddle bolt (24) or the U-bolt (2).

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