Roof photovoltaic panel support installation method convenient to install

Abstract

The invention relates to the field of photovoltaic technology, in particular to a method for installing a roof photovoltaic panel support convenient to install. S1, a fixed base is marked on a roof; s2, a chemical bolt is inserted into the drill hole, and an epoxy resin anchoring agent is injected; s3, a plurality of rows of upper supporting rods opposite to the fixed base are hinged to the bottom of the photovoltaic supporting plate; s4, the bottom, opposite to the second base, of the upper supporting rod is connected with an upper external thread sleeve; s5, the top of the lower supporting rod is connected with a lower external thread sleeve; s6, an internal thread sleeve is installed between the upper external thread sleeve and the lower external thread sleeve which are opposite; s7, the internal thread sleeve is rotated to adjust the distance between the upper supporting rod and the lower supporting rod; and S8, embedding the photovoltaic panel into the photovoltaic supporting plate and locking the photovoltaic panel. Through the composite anchoring mode of the chemical bolts and the epoxy resin anchoring agent, open fire welding operation is avoided, and the fire risk of igniting waterproof layers such as asphalt coiled materials is thoroughly eliminated.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic technology, and specifically to an installation method for a roof photovoltaic panel support that is easy to install. Background Art

[0002] During the construction process of new energy photovoltaic panel installation projects, the roof photovoltaic panel support system is mostly fixed by means of welding embedded steel plates or rigid connection with expansion bolts. The traditional welding process has the following defects: 1. The welding speed is slow and requires professional welders to operate. A large amount of open fire is generated on site, which is easy to ignite the roof waterproof materials (especially asphalt-based coils), posing a serious fire hazard; 2. The weld quality is significantly affected by the technical level of the operator. After the weld rusts and cracks, it is easy to cause the overall instability of the support; 3. When using expansion bolts for fixation, high precision is required for the bolt hole positions. It is difficult to achieve reliable anchoring when the roof flatness deviation exceeds 5 mm; 4. Adjusting the support inclination requires repeated disassembly and assembly of bolts, causing repeated perforation damage to the roof waterproof layer. A more prominent problem is that the traditional support system lacks secondary waterproof protection measures. The drilling holes are only filled with ordinary sealant, which is easy to age and crack under long-term ultraviolet irradiation, resulting in rainwater leakage. Summary of the Invention

[0003] The present invention aims to solve the above problems, and thus provides an installation method for a roof photovoltaic panel support that is easy to install and reduces potential hazards in the later stage.

[0004] The technical solution adopted by the present invention to solve the above problems is as follows: An installation method for a roof photovoltaic panel support that is easy to install, including a photovoltaic support plate, and further includes the following steps: S1: Mark the installation positions of N rows of fixed bases on the roof. The fixed bases include the first base in the first row and the second bases in the subsequent N - 1 rows. Use an electric drill to drill holes at the marked positions to the roof structural layer.

[0005] S2: Insert chemical bolts into the drilled holes and inject epoxy resin anchor agent. After curing, anchor the fixed bases to the roof, and apply polyurethane sealant to the edges of the drilled holes to seal the waterproof layer.

[0006] S3: A plurality of rows of upper support rods opposite to the fixed bases are hinged at the bottom of the photovoltaic support plate. The photovoltaic support plate is placed obliquely, and the bottom end is hinged to the first base through the upper support rods.

[0007] S4: The bottom of the upper support rods opposite to the second bases is connected with upper external thread sleeves.

[0008] S5: The second bases are hinged with lower support rods at the top, and the top of the lower support rods is connected with lower external thread sleeves.

[0009] S6: An internal thread sleeve is installed between the opposite upper external thread sleeves and lower external thread sleeves.

[0010] S7: Rotate the internal thread sleeve to adjust the distance between the upper support rod and the lower support rod so that the inclination angle of the photovoltaic support plate matches the preset inclination angle.

[0011] S8: Insert the photovoltaic panel into the photovoltaic support plate and lock it.

[0012] The present invention adopting the above technical solution, compared with the prior art, its prominent features are: Through the composite anchoring method of chemical bolts + epoxy resin anchoring agent, welding open-flame operations are avoided, and the fire risk of igniting waterproof layers such as asphalt rolls is completely eliminated; through the threaded linkage structure of the upper external thread sleeve and the lower external thread sleeve + internal thread sleeve, only by rotating the sleeve can the distance between the support rods be continuously adjusted, realizing the adjustment of the inclination angle of the photovoltaic support plate with an accuracy of 0.5°, avoiding the secondary damage to the waterproof layer caused by the repeated disassembly and assembly of traditional bolts; the modular design of the articulated support rod and the pre-installed threaded sleeve realizes the non-welded assembly of the support system, reduces the dependence on professional welders, and improves the installation efficiency by more than 40%. The polyurethane sealant seals the waterproof layer to form a flexible waterproof barrier.

[0013] As a preference, a further technical solution of the present invention is: Furthermore, in S2, the anchoring depth of the chemical bolt is 2 / 3 of the thickness of the roof structural layer, and the chemical anchoring agent covers the entire circumference of the inner wall of the drill hole.

[0014] Furthermore, in S2, the coating thickness of the polyurethane sealant is 3 - 5 mm, and a ring-shaped sealing band is formed around the drill hole, and the width of the sealing band is not less than 20 mm.

[0015] Furthermore, the internal thread pitch is equal to the thread pitches of the lower external thread sleeve and the upper external thread sleeve.

[0016] Furthermore, the upper support rod and the lower support rod are made of hollow aluminum alloy profiles, the profile wall thickness ≥ 2.5 mm and the surface is anodized.

[0017] Furthermore, in S8, the locking of the photovoltaic panel is realized by an elastic pressing block in cooperation with a locking bolt, and the bottom of the elastic pressing block is provided with anti-slip tooth patterns. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of an embodiment of the present invention; The marks in the figure are: fixed base 1, photovoltaic support plate 2, internal thread sleeve 3, upper support rod 4, upper external thread sleeve 5, lower external thread sleeve 6. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present invention will be further described below in conjunction with embodiments, and the purpose is only to better understand the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0020] A method for installing a roof photovoltaic panel support that is convenient for installation, including a photovoltaic support plate, and further includes the following steps: S1: Mark the installation positions of N rows of fixed bases 1 on the roof. The fixed base 1 includes the first base in the first row and the second bases in the subsequent N - 1 rows. Use a drill to drill holes to the roof structural layer at the marked positions. Use a laser alignment instrument to calibrate the center positions of the bases. Use a Φ14mm drill to vertically drill holes to the roof structural layer. The drilling depth H is calculated according to the thickness T of the structural layer. Blow the debris in the holes clean with compressed air, and then use a nylon brush to clean the residual dust on the hole walls.

[0021] S2: Insert chemical bolts into the drilled holes and inject epoxy resin anchoring agent. Use a double - tube syringe to inject the anchoring agent. The injection volume accounts for 80% of the hole volume. The curing temperature is 5 - 40°C, and the curing time is 30 - 90 minutes. After curing, anchor the fixed base 1 to the roof, and apply polyurethane sealant around the drilled holes to seal the waterproof layer. Before applying the polyurethane sealant, clean the waterproof layer around the base with acetone. Use a special injection gun to extrude it evenly into a ring along the outer edge of the drilled hole. Trim the surface of the colloid into a 45° slope with a scraper.

[0022] S3: A number of rows of upper support rods 4 opposite to the fixed base 1 are hinged at the bottom of the photovoltaic support plate 2. The photovoltaic support plate 2 is placed obliquely, and the bottom end is hinged to the first base through the upper support rod 4.

[0023] S4: The bottom of the upper support rod 4 opposite to the second base is connected with an upper external thread sleeve 5.

[0024] S5: The top of the second base is hinged with a lower support rod, and the top of the lower support rod is connected with a lower external thread sleeve 6.

[0025] S6: An internal thread sleeve 3 is installed between the opposite upper external thread sleeve 5 and lower external thread sleeve 6.

[0026] S7: Rotate the internal thread sleeve 3 to adjust the distance between the upper support rod 4 and the lower support rod, so that the inclination angle of the photovoltaic support plate 2 matches the preset inclination angle.

[0027] S8: Embed the photovoltaic panel into the photovoltaic support plate 2 and lock it.

[0028] Furthermore, in S2, the anchoring depth of the chemical bolts is 2 / 3 of the thickness of the roof structural layer, and the chemical anchoring agent covers the entire circumference of the inner wall of the drilled hole. Setting the anchoring depth to 2 / 3 of the thickness of the roof structural layer can not only penetrate the roof renovation layer (such as mortar leveling layer, waterproof coiled material), but also form an effective anchor with the structural layer, avoiding the loosening of the base caused by shallow anchoring; the epoxy resin anchoring agent covering the inner wall of the drilled hole ensures that the chemical bolts are evenly bonded with the hole wall at 360°, improving the tensile strength and solving the problem of local slip of the expansion bolts when the hole wall is rough.

[0029] Furthermore, the coating thickness of the polyurethane sealant in S2 is 3 - 5 mm, and an annular sealing belt is formed around the drilled hole. The width of the sealing belt is not less than 20 mm. The coating thickness of 3 - 5 mm and the annular sealing belt with a width of ≥20 mm form an elastic waterproof ring to fill the micro - gaps between the drilled hole and the base. Its anti - ultraviolet performance far exceeds that of ordinary silicone sealants. The elastic modulus of the polyurethane sealant matches that of the waterproof layer, which can absorb the thermal expansion and contraction deformation of the roof and avoid water seepage caused by the cracking of rigid sealing materials.

[0030] Furthermore, the pitch of the internal thread is equal to the pitches of the lower external - thread sleeve 6 and the upper external - thread sleeve 5, ensuring synchronous telescopic amounts when rotating the sleeve and avoiding inclination caused by pitch deviation.

[0031] Furthermore, the upper support rod 4 and the lower support rod are made of hollow aluminum alloy profiles. The wall thickness of the profiles is ≥2.5 mm and the surface is anodized. Using hollow aluminum alloy (such as 6063 - T5 or 5052 - H32) profiles, the density is only 1 / 3 of that of steel. The weight of a single support rod can be reduced by more than 60%, which is convenient for high - altitude handling and installation. The sectional moment of inertia can reach 70% of that of steel, and the bending strength is ≥160 MPa, meeting the mechanical requirements of the EN 1999 - 1 - 1 standard for photovoltaic brackets. An anodized surface generates an oxide film with a thickness of 10 - 25 μm, and the corrosion - resistant life reaches more than 25 years, completely solving the problem of rust of traditional carbon steel brackets.

[0032] Furthermore, in S8, the photovoltaic panel is locked by an elastic pressing block in cooperation with a locking bolt, and the bottom of the elastic pressing block is provided with anti - slip tooth patterns.

[0033] Through the composite anchoring method of chemical bolts + epoxy resin anchoring agent, open - fire welding operations are avoided, and the fire risk of igniting waterproof layers such as asphalt shingles is completely eliminated. Through the threaded linkage structure of the upper external - thread sleeve 5, the lower external - thread sleeve 6 and the internal - thread sleeve 3, only by rotating the sleeve, the distance between the support rods can be continuously adjusted, realizing the adjustment of the inclination angle of the photovoltaic support plate 2 with an accuracy of 0.5°, avoiding secondary damage to the waterproof layer caused by repeated disassembly and assembly of traditional bolts. The modular design of articulated support rods and pre - installed threaded sleeves realizes the bolt - free assembly of the support system, reduces the dependence on professional welders, and improves the installation efficiency by more than 40%. The polyurethane sealant seals the waterproof layer to form a flexible waterproof barrier.

[0034] The above are only the preferred and feasible embodiments of the present invention, and do not limit the scope of the rights of the present invention. All equivalent changes made by using the content of the specification and drawings of the present invention are included in the scope of the rights of the present invention.

Claims

1. A method for installing a roof photovoltaic panel bracket that is easy to install, including a photovoltaic support plate, characterized in that: The following steps are also included: S1: Mark the installation positions of N rows of fixed bases on the roof. The fixed bases include the first base of the first row and the second base of the subsequent N-1 rows. Use an electric drill to drill holes at the marked positions to the roof structure layer; S2: Insert chemical bolts into the drilled holes and inject epoxy resin anchoring agent. After curing, anchor the fixed base to the roof, and apply polyurethane sealant to the edge of the drilled hole to seal the waterproof layer; S3: The bottom of the photovoltaic support plate is hinged with a plurality of rows of upper support rods opposite to the fixed base, the photovoltaic support plate is placed at an angle and the bottom end is hinged to the first base through the upper support rods; S4: An upper external threaded sleeve is connected to the bottom of the upper support rod opposite to the second base; S5: A lower support rod is hinged on the top of the second base, and a lower external threaded sleeve is connected to the top of the lower support rod; S6: An internal threaded sleeve is installed between the upper external threaded sleeve and the lower external threaded sleeve; S7: Rotate the internal thread sleeve to adjust the distance between the upper support rod and the lower support rod so that the inclination angle of the photovoltaic support plate matches the preset inclination angle; S8: Embed the photovoltaic panel into the photovoltaic support plate and lock it.

2. The method for installing a roof photovoltaic panel bracket that is easy to install according to claim 1 is characterized in that: The anchoring depth of the chemical bolts in S2 is 2 / 3 of the thickness of the roof structure layer, and the chemical anchor covers the entire circumference of the inner wall of the drill hole.

3. The method for installing a roof photovoltaic panel bracket that is easy to install according to claim 1 is characterized in that: The coating thickness of the polyurethane sealant in S2 is 3-5mm, and an annular sealing belt is formed around the drilled hole, and the width of the sealing belt is not less than 20mm.

4. The method for installing a roof photovoltaic panel bracket that is easy to install according to claim 1 is characterized in that: The pitch of the internal thread is equal to the pitch of the lower external thread sleeve and the upper external thread sleeve.

5. The method for installing a roof photovoltaic panel bracket that is easy to install according to claim 1 is characterized in that: The upper support rod and the lower support rod are made of hollow aluminum alloy profiles with a profile wall thickness of ≥2.5mm and anodized surface.

6. The method for installing a roof photovoltaic panel bracket that is easy to install according to claim 1 is characterized in that: The photovoltaic panel in S8 is locked by an elastic pressure block in combination with a locking bolt, and the bottom of the elastic pressure block is provided with anti-slip teeth.

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