Medium-voltage fixing piece for photovoltaic panel installation

Abstract

The utility model belongs to the technical field of photovoltaic power generation equipment, particularly relates to a medium-voltage fixing piece for photovoltaic panel installation, and solves the problem that the laying density of photovoltaic panels is affected due to the fact that gaps between adjacent photovoltaic panels are large. The medium-voltage fixing piece for installing the photovoltaic panel is arranged between a U-shaped cross beam and the photovoltaic panel, the photovoltaic panel is placed on the U-shaped cross beam, the medium-voltage fixing piece comprises an I-shaped main body and a nut block located below the I-shaped main body, the nut block is clamped in the U-shaped cross beam, and the U-shaped cross beam is arranged on the U-shaped cross beam. The I-shaped main body and the nut block are connected and drawn close through a locking bolt, a pressing plate of the I-shaped main body is downwards pressed on a frame of the photovoltaic panel, and the side face of the frame is in contact with a vertical plate of the I-shaped main body in an attached mode. When the installation is stable, the minimum distance between the adjacent photovoltaic panels reaches the thickness of one vertical plate, and the effects of improving the actual coverage rate of the photovoltaic panels in a unit laying site and improving the photovoltaic power generation power in the unit laying site are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic power generation equipment, and particularly relates to a medium-voltage fixing piece for installing a photovoltaic panel. Background Art

[0002] Photovoltaic power generation is a technology that uses the photovoltaic effect of semiconductor interfaces to directly convert light energy into electrical energy. It has the characteristics of being green and environmentally friendly. Photovoltaic power generation equipment is becoming more and more common in real life.

[0003] Photovoltaic power generation equipment mainly generates electricity by "absorbing" sunlight through photovoltaic panels. The photovoltaic panels are laid side by side and installed on the purlins, and are mainly fixed by middle pressure blocks and side pressure blocks. The middle pressure blocks commonly used in the current prior art are mostly U-shaped, and bolts are vertically inserted in the first connecting hole in the middle of the middle pressure block. The bolts are threadedly connected to the plastic wing nuts on the purlins. The bolts are tightened so that the wing plates of the middle pressure blocks are pressed against the frame of the photovoltaic panels to achieve fixation.

[0004] However, through such fixed structure installation, there is a spacing of at least twice the thickness of the side plate of the medium pressure block plus the diameter of the bolt head between adjacent photovoltaic panels, which reduces the actual photovoltaic panel coverage rate of the unit laying site and the utilization rate of the site needs to be further improved. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems in the prior art and to provide a medium-voltage fixing member for installing a photovoltaic panel.

[0006] In order to achieve the purpose of innovation, the utility model can be realized through the following technical solutions: a medium-pressure fixing part for installing a photovoltaic panel, which is arranged between a U-shaped beam and a photovoltaic panel, and the photovoltaic panel is placed on the U-shaped beam. The medium-pressure fixing part includes an I-shaped I-shaped main body and a nut block located below the I-shaped main body, and the nut block is clamped in the U-shaped beam. The I-shaped main body and the nut block are connected and brought together by locking bolts, and the pressure plate of the I-shaped main body is pressed downwardly on the frame of the photovoltaic panel, and the side of the frame is in contact with the vertical plate of the I-shaped main body.

[0007] The I-shaped main body of the medium-pressure fixing of the utility model is an I-shaped body. The I-shaped main body is set on the U-shaped crossbeam through a nut block. The nut block is slidably connected in the U-shaped crossbeam to form a vertical limit. The I-shaped main body is set between two photovoltaic panels. The spacing between adjacent photovoltaic panels can be minimized when the side of the frame is attached to the vertical plate. The minimum is only the thickness of a vertical plate. The spacing is very small, which improves the laying density of the photovoltaic panels. The locking bolt is passed through the I-shaped main body and screwed with the nut block below. Since the bolt head of the locking bolt can be rotatably limited in the I-shaped main body, the I-shaped main body and the nut block can be pulled closer by tightening the locking bolt. The pressure plate above the I-shaped main body is pressed down on the frame. At the same time, the pressure between the frame and the U-shaped crossbeam increases, and the friction force increases, so as to achieve good fixation. The U-shaped crossbeam is used as a purlin. The cross section is similar to a U-shaped shape with an opening closed inward. It is common knowledge in the prior art and will not be further elaborated here.

[0008] In the above-mentioned medium-pressure fixing for photovoltaic panel installation, the I-shaped main body includes a pressure plate, a vertical plate and a connecting plate that are integrally connected. The pressure plate and the connecting plate are respectively connected to the upper and lower ends of the vertical plate, and the pressure plate and the connecting plate are both perpendicular to the vertical plate.

[0009] The vertical plate is located between the pressure plate and the connecting plate, and serves to connect the two. The pressure plate is located at the upper end, and is specifically used to press down the frame of the photovoltaic panel to fix it. The connecting plate is located at the lower end, and is used to be connected to the nut block through the locking bolts, and provide downward pulling force to the I-shaped body when the locking bolts are tightened.

[0010] In the above-mentioned medium-voltage fixing for installing photovoltaic panels, a first connecting hole is vertically penetrated on the connecting plate, a clearance hole is vertically penetrated on the pressure plate, and a clearance groove is penetrated on the vertical plate perpendicular to the plate surface. The locking bolt is inserted downward into the first connecting hole, and the first connecting hole, the clearance hole, the clearance groove and the locking bolt are located on the same vertical line.

[0011] The clearance hole and the clearance groove are both used to pass the locking bolt and the wrench tool for twisting, ensuring that the locking bolt is tightened or loosened smoothly during installation. The first connecting hole is used to pass the screw rod and clamp the bolt head to form an axial limit between the connecting plate and the locking bolt.

[0012] As an optimization, the locking bolts can be hexagon socket bolts, and the wrench tool is a hexagon socket wrench of corresponding size.

[0013] In the above-mentioned medium-pressure fixing for photovoltaic panel installation, the inner diameter of the first connecting hole is equal to or slightly larger than the outer diameter of the screw of the locking bolt, but smaller than the outer diameter of the bolt head; the inner diameter of the clearance hole is greater than or equal to the outer diameter of the bolt head; the upper and lower ends of the clearance groove are respectively connected to the clearance hole and the first connecting hole, and the width is greater than or equal to the outer diameter of the bolt head.

[0014] The size of the first connecting hole is adapted to the screw rod to ensure smooth passage of the screw rod, and the size of the clearance hole and the clearance groove is greater than or equal to the size of the bolt head to ensure the clearance of the locking bolt. As a further optimization, a gasket is provided between the bolt head and the connecting plate, and the inner diameter of the corresponding clearance hole and the width of the clearance groove are adapted to the outer diameter of the gasket.

[0015] In the above-mentioned medium-pressure fixing for photovoltaic panel installation, the distance between the connecting plate and the pressure plate is greater than the distance between the upper and lower surfaces of the frame, and the diameter of the bolt head is less than or equal to the thickness of the vertical plate.

[0016] The distance between the connecting plate and the pressing plate is greater than the thickness of the photovoltaic panel, ensuring that the frame can be smoothly attached to the vertical plate. The bolt head diameter and the vertical plate thickness are adapted to ensure that after the photovoltaic panel is installed against the vertical plate, it can still be smoothly screwed out between the two frames to meet the disassembly requirements.

[0017] In the above-mentioned medium-voltage fixing for installing photovoltaic panels, the nut block includes a strip-shaped limit plate and an anti-rotation plate, the width of the limit plate and the anti-rotation plate is smaller than the opening width of the U-shaped beam, and the length is greater than the opening width of the U-shaped beam. The anti-rotation plate is provided with a screw hole, and the limit plate is provided with a second connecting hole. The screw rod of the locking bolt passes through the second connecting hole and is meshed and connected to the screw hole.

[0018] The limiting plate and anti-rotation sheet are generally rectangular in shape, with the short side smaller than the opening width of the U-shaped beam to ensure smooth insertion, and the long side larger than the opening width. After the limiting plate and anti-rotation sheet are inserted, they can be rotated to the horizontal direction to achieve vertical limitation. The second connecting hole is used to pass the screw rod, which has a giving way effect. The screw rod engages with the anti-rotation sheet to pull up the anti-rotation sheet, and the limiting plate above the anti-rotation sheet is stuck in the U-shaped beam, ensuring the smooth contraction between the nut block and the I-shaped body to tighten the photovoltaic panel.

[0019] In the above-mentioned medium-pressure fixings for installing photovoltaic panels, the anti-rotation plate is in the shape of an arc with a sunken middle part. When the anti-rotation plate is completely tightened upward by the locking bolts in the middle part to be in contact with the bottom surface of the limit plate, it is in the shape of a square flat plate, and at this time, the diagonal length of the anti-rotation plate is greater than the inner groove width of the U-shaped beam.

[0020] The middle part of the anti-rotation plate is concave and has a certain elastic deformation ability. When the locking bolt applies an upward force to the middle part of the anti-rotation plate, as the middle part approaches the bottom surface of the limit plate, the two ends of the anti-rotation plate extend outward, that is, the length in the length direction increases. When it is fully unfolded, it is in the shape of a rectangle and is attached to the bottom surface of the limit plate. Since the diagonal length is greater than the inner groove width of the U-shaped beam, the rotation angle of the anti-rotation plate is limited, achieving the anti-rotation effect, avoiding the locking bolt and the anti-rotation plate from rotating at the same time and being unable to be tightened or loosened.

[0021] In the above-mentioned medium-voltage fixing for photovoltaic panel installation, a positioning protrusion is provided at the outer end of the bottom surface of the limiting plate, and a positioning groove is provided on the upper end surface of the anti-rotation sheet along the length direction, and the positioning protrusion slides in the positioning groove.

[0022] A positioning protrusion and a positioning groove are provided between the limit plate and the anti-rotation piece. The positioning protrusion is limited in the positioning groove and is arranged at the end. No matter the anti-rotation piece is in an arc state or a fully extended state, the limit is stable, thereby preventing the limit plate from rotating relative to the anti-rotation piece, and ensuring stable limit between the limit piece and the U-shaped beam.

[0023] In the above-mentioned medium-pressure fixings for photovoltaic panel installation, at least one first glue groove extending vertically is respectively provided on both side surfaces of the vertical plate, a double-sided glue strip or glue liquid is provided in the first glue groove, and a first easy-pry chamfer is provided between the side surface and the front and back surfaces of the vertical plate.

[0024] A first glue groove is set on the vertical plate, and a double-sided adhesive strip or adhesive strip is set in the first glue groove, and the thickness of the double-sided adhesive strip or the thickness of the adhesive strip is slightly greater than the depth of the first glue groove. After the frame and the vertical plate are attached, the double-sided adhesive strip or adhesive liquid is respectively bonded to the side surface of the frame and the board surface of the vertical plate, providing a certain fixing effect in the horizontal direction, so that the fixation between the frame and the I-shaped body is more stable. The first easy-pry chamfer facilitates the insertion of a sheet tool when removal is required, so as to quickly release the bonding of the double-sided adhesive strip.

[0025] In the above-mentioned medium-pressure fixings for photovoltaic panel installation, at least two second glue grooves are provided on the lower end surface of the pressure plate, the second glue grooves are respectively located on both sides of the vertical plate and are parallel to the vertical plate, double-sided adhesive strips or adhesive liquid are provided in the second glue grooves, and a second easy-pry chamfer is provided between the bottom and side surfaces of the pressure plate.

[0026] A second glue groove is set on the lower side of the pressing plate, in which a double-sided adhesive strip is attached or glue is applied, and the thickness of the double-sided adhesive strip or glue is slightly greater than the depth of the second glue groove. After the pressing plate is pressed onto the frame, the double-sided adhesive strip or glue is respectively bonded to the upper end surface of the frame and the lower end surface of the pressing plate, providing a certain fixing effect, so that the fixation between the frame and the I-shaped body is more stable. The second easy-pry chamfer facilitates the insertion of a sheet tool when removal is required, so as to quickly release the bonding of the double-sided adhesive strip.

[0027] Compared with the prior art, the utility model mainly has the following advantages:

[0028] 1. The I-shaped main body of the medium-pressure fixing piece of the utility model is an I-shape, which is arranged on the U-shaped beam through a nut block, and the nut block is slidably connected in the U-shaped beam to form a vertical limit, and the I-shaped main body is arranged between two photovoltaic panels. The spacing between adjacent photovoltaic panels can be minimized when the side of the frame is attached to the vertical board, and the minimum is only the thickness of a vertical board. The spacing is very small, which improves the laying density of the photovoltaic panels.

[0029] 2. The middle part of the anti-rotation plate is concave. When the locking bolt applies an upward force to the middle part of the anti-rotation plate, as the middle part approaches the bottom surface of the limit plate, the two ends of the anti-rotation plate extend outward, that is, the length in the length direction increases. When it is fully unfolded, it is in a rectangular shape and is attached to the bottom surface of the limit plate. Since the diagonal length is greater than the inner groove width of the U-shaped beam, the rotation angle of the anti-rotation plate is limited, achieving the anti-rotation effect and preventing the locking bolt and the anti-rotation plate from rotating at the same time and being unable to be tightened or loosened.

[0030] 3. The first glue groove and the second glue groove are set on the vertical plate and the pressure plate, and the I-shaped body and the frame are bonded by double-sided adhesive strips or adhesive liquid to make the installation more stable. The first easy-pry chamfer and the second easy-pry chamfer are convenient for inserting sheet tools when removal is required to quickly release the bonding. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the photovoltaic panel provided by the utility model being installed on a U-shaped beam;

[0032] Figure 2 It is a schematic diagram of the arrangement of the medium-voltage fixing member provided by the utility model between the photovoltaic panel and the U-shaped crossbeam;

[0033] Figure 3 yes Figure 2 A magnified detail of the center point A;

[0034] Figure 4 yes Figure 2 A right side schematic diagram (partial);

[0035] Figure 5 yes Figure 1 A front view schematic diagram (partial);

[0036] Figure 6 It is a schematic diagram of the overall structure of the medium-pressure fixing piece provided by the utility model.

[0037] In the figure, U-shaped crossbeam 1, photovoltaic panel 2, frame 21, I-shaped body 3, pressure plate 31, vertical plate 32, connecting plate 33, first connecting hole 34, make way hole 35, make way groove 36, first glue groove 37, second glue groove 38, glue 39, first easy-pry chamfer 41, second easy-pry chamfer 41, nut block 5, limit plate 51, anti-rotation sheet 52, second connecting hole 53, screw hole 54, positioning protrusion 55, positioning groove 56, locking bolt 6, bolt head 61, screw 62. DETAILED DESCRIPTION

[0038] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0039] Specific implementation examples Figure 1-6 As shown, the medium-pressure fixing part for installing the photovoltaic panel is arranged between the U-shaped beam 1 and the photovoltaic panel 2, and the photovoltaic panel 2 is placed on the U-shaped beam 1. The medium-pressure fixing part includes an I-shaped I-shaped main body 3 and a nut block 5 located below the I-shaped main body 3. The nut block 5 is clamped in the U-shaped beam 1, and the I-shaped main body 3 and the nut block 5 are connected and close together by locking bolts 6. The pressure plate 31 of the I-shaped main body 3 is pressed downwardly on the frame 21 of the photovoltaic panel 2, and the side of the frame 21 is in contact with the vertical plate 32 of the I-shaped main body 3.

[0040] Specifically, the I-shaped main body 3 of the medium-pressure fixing of the utility model is an I-shaped body. The I-shaped main body 3 is arranged on the U-shaped crossbeam 1 through the nut block 5. The U-shaped crossbeam 1 is used as a purlin. In cross section, it is a U-shaped with an opening closed inward. The nut block 5 is slidably connected in the U-shaped crossbeam 1 to form a vertical limit. The I-shaped main body 3 is arranged between two photovoltaic panels 2. The spacing between adjacent photovoltaic panels 2 can be minimized when the side of the frame 21 is attached to the vertical plate 32. The minimum is only the thickness of a vertical plate 32. The spacing is very small, which improves the laying density of the photovoltaic panels 2. The locking bolt 6 is penetrated on the I-shaped main body 3 and screwed with the nut block 5 below. Since the bolt head 61 of the locking bolt 6 can be rotatably limited in the I-shaped main body 3, the I-shaped main body 3 and the nut block 5 can be pulled closer by tightening the locking bolt. The pressure plate 31 above the I-shaped main body 3 is pressed down on the frame 21. At the same time, the pressure between the frame 21 and the U-shaped crossbeam 1 increases, and the friction force increases, so as to achieve good fixation.

[0041] like Figure 6As shown, the I-shaped body 3 includes a pressing plate 31, a vertical plate 32 and a connecting plate 33 connected in one piece. The pressing plate 31 and the connecting plate 33 are connected to the upper end and the lower end of the vertical plate 32 respectively, and the pressing plate 31 and the connecting plate 33 are perpendicular to the vertical plate 32. A first connecting hole 34 is vertically penetrated on the connecting plate 33, a clearance hole 35 is vertically penetrated on the pressing plate 31, and a clearance groove 36 is vertically penetrated on the vertical plate 32. The locking bolt 6 is inserted downward into the first connecting hole 34, and the first connecting hole 34, the clearance hole 35, the clearance groove 36 and the locking bolt 6 are located on the same vertical line. A gasket is provided between the bolt head 61 and the connecting plate 33. The inner diameter of the first connecting hole 34 is slightly larger than the outer diameter of the screw 62 of the locking bolt 6, and the inner diameter of the clearance hole 35 is adapted to the outer diameter of the gasket; the upper and lower ends of the clearance groove 36 are connected to the clearance hole 35 and the first connecting hole 34 respectively, and the width is adapted to the width of the gasket. The distance between the connecting plate 33 and the pressing plate 31 is greater than the distance between the upper and lower surfaces of the frame 21 , and the diameter of the bolt head 61 is less than or equal to the thickness of the vertical plate 32 .

[0042] Specifically, the vertical plate 32 is located between the pressure plate 31 and the connecting plate 33, and serves to connect the two. The pressure plate 31 is located at the upper end, and is specifically used to press down the frame 21 of the photovoltaic panel 2 to fix it. The connecting plate 33 is located at the lower end, and is used to connect with the nut block 5 through the locking bolt 6, wherein the locking bolt 6 can be a hexagon socket bolt, which provides a downward pulling force to the I-shaped body 3 when the locking bolt 6 is tightened. The clearance hole 35 and the clearance groove 36 are both used to pass the locking bolt 6 and the wrench tool for twisting, to ensure that the locking bolt 6 is tightened or loosened smoothly during installation. The first connecting hole 34 is used to pass the screw 62 and clamp the bolt head 61, forming an axial limit between the connecting plate 33 and the locking bolt 6. The distance between the connecting plate 33 and the pressing plate 31 is greater than the thickness of the photovoltaic panel 2, ensuring that the frame 21 is smoothly attached to the vertical plate 32. The diameter of the bolt head 61 is adapted to the thickness of the vertical plate 32, ensuring that after the photovoltaic panel 2 is installed against the vertical plate 32, it can still be smoothly screwed out between the two frames 21 to meet the disassembly requirements.

[0043] like Figure 4 , 6As shown, the nut block 5 includes a strip-shaped limiting plate 51 and an anti-rotation plate 52. The width of the limiting plate 51 and the anti-rotation plate 52 is smaller than the opening width of the U-shaped beam 1, and the length is greater than the opening width of the U-shaped beam 1. The anti-rotation plate 52 is provided with a screw hole 54. The limiting plate 51 is provided with a second connecting hole 53. The screw rod 62 of the locking bolt 6 passes through the second connecting hole 53 and is engaged with the screw hole 54. The anti-rotation plate 52 is an arc shape with a sunken middle part. When the anti-rotation plate 52 is completely tightened upward by the locking bolt 6 in the middle part to be in contact with the bottom surface of the limiting plate 51, it is a square flat plate shape, and at this time, the diagonal length of the anti-rotation plate 52 is greater than the inner groove width of the U-shaped beam 1. A positioning protrusion 55 is provided at the outer end of the bottom surface of the limiting plate 51, and a positioning groove 56 is provided on the upper end surface of the anti-rotation plate 52 along the length direction. The positioning protrusion 55 slides in the positioning groove 56.

[0044] Specifically, the limit plate 51 and the anti-rotation plate 52 are generally rectangular in shape, with the short side smaller than the opening width of the U-shaped beam 1 to ensure smooth insertion, and the long side larger than the opening width. After the limit plate 51 and the anti-rotation plate 52 are inserted, they can be rotated to the horizontal direction to achieve vertical limitation. The second connecting hole 53 is used to pass the screw 62, which has a giving way effect. The screw 62 engages with the anti-rotation plate 52 to pull up the anti-rotation plate 52, and the limit plate 51 above the anti-rotation plate 52 is stuck in the U-shaped beam 1, ensuring that the nut block 5 and the I-shaped body 3 are smoothly retracted to tighten the photovoltaic panel 2. The middle part of the anti-rotation sheet 52 is concave. When the locking bolt 6 applies an upward force to the middle part of the anti-rotation sheet 52, as the middle part approaches the bottom surface of the limiting plate 51, the two ends of the anti-rotation sheet 52 extend outward, that is, the length in the length direction increases. When fully extended, it is in a rectangular shape and is attached to the bottom surface of the limiting plate 51. Since the diagonal length is greater than the inner groove width of the U-shaped crossbeam 1, the rotation angle of the anti-rotation sheet 52 is limited, achieving the anti-rotation effect, avoiding the locking bolt 6 and the anti-rotation sheet 52 from rotating at the same time and being unable to be tightened or loosened. A positioning protrusion 55 and a positioning groove 56 are provided between the limiting plate 51 and the anti-rotation sheet 52. The positioning protrusion 55 is limited in the positioning groove 56 and is provided at the end. Whether the anti-rotation sheet 52 is in an arc state or a fully extended state, it is stably limited, avoiding the rotation of the limiting plate 51 relative to the anti-rotation sheet 52, and ensuring the stable limit between the limiting sheet and the U-shaped crossbeam 1.

[0045] As an optimization of this embodiment, a first glue groove 37 extending vertically is respectively provided on both side surfaces of the vertical plate 32, and glue liquid 39 is provided in the first glue groove 37, and a first easy-pry chamfer 40 is provided between the side surface and the front and back surfaces of the vertical plate 32. Two second glue grooves 38 are provided on the lower end surface of the pressing plate 31, and the second glue grooves 38 are respectively located on both sides of the vertical plate 32 and are parallel to the vertical plate 32, and glue liquid 39 is provided in the second glue grooves 38, and a second easy-pry chamfer 41 is provided between the bottom surface and the side surface of the pressing plate 31.

[0046] Specifically, a first glue groove 37 is provided on the vertical plate 32, and glue 39 is coated in the first glue groove 37. After the frame 21 and the vertical plate 32 are attached to each other, the glue 39 is respectively bonded to the side surface of the frame 21 and the plate surface of the vertical plate 32. A second glue groove 38 is provided on the lower side of the pressing plate 31, and glue 39 is coated in the second glue groove 38. After the pressing plate 31 is pressed onto the frame 21, the glue 39 is respectively bonded to the upper end surface of the frame 21 and the lower end surface of the pressing plate 31, providing a certain fixing effect, so that the fixation between the frame 21 and the I-shaped body 3 is more stable. The first easy-pry chamfer 40 and the second easy-pry chamfer 41 are convenient for inserting a sheet tool when removal is required to quickly release the bonding.

[0047] Specific working principle: when installing the photovoltaic panel 2, the locking bolt 6 is passed through the first connecting hole 34, and at the same time, it is passed through the second connecting hole 53 and screwed to the anti-rotation plate to complete a simple assembly. Then, the limit plate 51 and the anti-rotation sheet 52 are placed in the U-shaped beam 1 and rotated to limit the U-shaped beam 1. The simply assembled medium-pressure fixing part is moved to one side of the first photovoltaic panel 2 that has been installed, and the vertical plate 32 is pressed against the frame 21. At the same time, another photovoltaic panel 2 is placed on the other side of the vertical plate 32. The hexagonal wrench passes through the clearance hole 35 and the clearance groove 36 and begins to tighten the locking bolt 6. The pressure plate 31 is pressed on the frame 21, and the pressure between them increases slightly. The anti-rotation sheet 52 is pulled up and unfolded. After it is fully unfolded, as the locking bolt 6 continues to be screwed in, the pressure between the pressure plate 31 and the frame 21 increases rapidly to an appropriate size. Pulling out the hexagonal wrench completes the firm installation. When removal is required, the hexagonal wrench is passed through the clearance hole 35 and the clearance groove 36 in sequence to reversely screw the locking bolt 6 .

[0048] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A medium-voltage fixing member for installing a photovoltaic panel, arranged between a U-shaped crossbeam (1) and a photovoltaic panel (2), wherein the photovoltaic panel (2) is placed on the U-shaped crossbeam (1), characterized in that: The medium-pressure fixing member comprises an I-shaped main body (3) and a nut block (5) located below the I-shaped main body (3); the nut block (5) is clamped in the U-shaped crossbeam (1); the I-shaped main body (3) and the nut block (5) are connected and brought close together by locking bolts (6); the pressure plate (31) of the I-shaped main body (3) is pressed downwardly against the frame (21) of the photovoltaic panel (2); and the side surface of the frame (21) and the vertical plate (32) of the I-shaped main body (3) are in contact with each other.

2. The medium voltage fixing member for photovoltaic panel installation according to claim 1, characterized in that: The I-shaped body (3) comprises a pressing plate (31), a vertical plate (32) and a connecting plate (33) which are integrally connected, the pressing plate (31) and the connecting plate (33) being connected to the upper end and the lower end of the vertical plate (32) respectively, and the pressing plate (31) and the connecting plate (33) being perpendicular to the vertical plate (32).

3. The medium voltage fixing member for photovoltaic panel installation according to claim 2, characterized in that: The connecting plate (33) is provided with a first connecting hole (34) vertically extending therethrough, the pressing plate (31) is provided with a clearance hole (35) vertically extending therethrough, the vertical plate (32) is provided with a clearance groove (36) perpendicular to the plate surface, the locking bolt (6) is inserted downward into the first connecting hole (34), and the first connecting hole (34), the clearance hole (35), the clearance groove (36) and the locking bolt (6) are located on the same vertical line.

4. The medium voltage fixing member for photovoltaic panel installation according to claim 3, characterized in that: The inner diameter of the first connecting hole (34) is equal to or slightly larger than the outer diameter of the screw rod (62) of the locking bolt (6), but smaller than the outer diameter of the bolt head (61); the inner diameter of the clearance hole (35) is greater than or equal to the outer diameter of the bolt head (61); the upper and lower ends of the clearance groove (36) are respectively connected to the clearance hole (35) and the first connecting hole (34), and the width is greater than or equal to the outer diameter of the bolt head (61).

5. The medium voltage fixing member for photovoltaic panel installation according to claim 4, characterized in that: The distance between the connecting plate (33) and the pressing plate (31) is greater than the distance between the upper and lower surfaces of the frame (21), and the diameter of the bolt head (61) is less than or equal to the thickness of the vertical plate (32).

6. The medium voltage fixing member for installing a photovoltaic panel according to any one of claims 1 to 5, characterized in that: The nut block (5) comprises a strip-shaped limiting plate (51) and an anti-rotation plate (52); the width of the limiting plate (51) and the anti-rotation plate (52) is smaller than the opening width of the U-shaped cross beam (1), and the length is larger than the opening width of the U-shaped cross beam (1); a screw hole (54) is provided on the anti-rotation plate (52); a second connecting hole (53) is provided on the limiting plate (51); a screw rod (62) of the locking bolt (6) passes through the second connecting hole (53) and is meshedly connected to the screw hole (54).

7. The medium voltage fixing member for photovoltaic panel installation according to claim 6, characterized in that: The anti-rotation sheet (52) is in the shape of an arc with a sunken middle portion. When the anti-rotation sheet (52) is completely tightened upward by the locking bolt (6) in the middle portion until it is in contact with the bottom surface of the limit plate (51), it is in the shape of a square flat plate. At this time, the diagonal length of the anti-rotation sheet (52) is greater than the inner groove width of the U-shaped crossbeam (1).

8. The medium voltage fixing member for photovoltaic panel installation according to claim 7, characterized in that: A positioning protrusion (55) is provided at the outer end of the bottom surface of the limiting plate (51), and a positioning groove (56) is provided on the upper end surface of the anti-rotation plate (52) along the length direction, and the positioning protrusion (55) slides in the positioning groove (56).

9. The medium voltage fixing member for installing a photovoltaic panel according to any one of claims 1 to 5, characterized in that: At least one first adhesive groove (37) extending vertically is respectively provided on both side surfaces of the vertical plate (32), a double-sided adhesive strip or adhesive liquid (39) is provided in the first adhesive groove (37), and a first easy-pry chamfer (40) is provided between the side surface and the front and back surfaces of the vertical plate (32).

10. The medium voltage fixing member for photovoltaic panel installation according to any one of claims 1 to 5, characterized in that: At least two second glue grooves (38) are provided on the lower end surface of the pressing plate (31), and the second glue grooves (38) are respectively located on both sides of the vertical plate (32) and are parallel to the vertical plate (32). Double-sided glue strips or glue liquid (39) are provided in the second glue grooves (38), and a second easy-pry chamfer (41) is provided between the bottom surface and the side surface of the pressing plate (31).

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