Building roof photovoltaic foundation installation platform and construction method

Abstract

The invention discloses a building roof photovoltaic foundation installation platform and a construction method.The photovoltaic foundation installation platform comprises a bottom frame, idler wheels, a reel and a motor, the idler wheels are arranged at the bottom of the bottom frame, supporting sleeves are arranged in the middles of the two sides of the bottom frame respectively, and inserting frames are inserted into the supporting sleeves; a wire guide wheel assembly is arranged on the top of the inserting frame, a pull rope is arranged on the wire guide wheel assembly, the left end of the pull rope is connected with the winding frame, and the right end of the pull rope is connected with the H-shaped support. According to the invention, the roller assembly is arranged at the top of the insertion frame and is matched with the motor and the reel for use, so that the inverter can be hoisted to the installation height, the installation of inverters with different heights is met, meanwhile, the inverter can be moved by using the device, the burden of workers is reduced, the working efficiency is improved, the use is flexible, the operation is simple, and the practicability is high. The popularization is easy.

Description

Technical Field

[0001] The invention relates to an inverter installation platform, in particular to a photovoltaic foundation installation platform on a building roof and a construction method, belonging to the technical field of photovoltaic foundation construction. Background Art

[0002] The circular flower stands on the roofs of existing buildings, the roofs of rooftop computer rooms and other spaces can all be used as sites for the construction of photovoltaic power stations. The inverter is one of the key devices for converting direct current into alternating current in photovoltaic power generation systems. The higher the inverter conversion efficiency, the higher the conversion efficiency of the photovoltaic power generation system, the smaller the total power generation loss of the system, and the higher the system economy.

[0003] Existing inverters are often fixed on photovoltaic brackets or walls of buildings. Before installing the inverter, an inverter bracket is installed on the wall of the building or the photovoltaic bracket, and then the inverter is fixed on the inverter bracket. Since the installation position of the inverter is generally high and the inverter itself is heavy, the process of moving the inverter is not only time-consuming and labor-intensive, but also inefficient, and the inverter may be damaged if not handled with care. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a photovoltaic foundation installation platform and a construction method for a building roof, which is convenient for workers to quickly install the inverter, easy to use and simple to operate.

[0005] The technical solution adopted by the present invention to solve the technical problem is: A photovoltaic foundation installation platform on the roof of a building comprises a base frame, a roller, a winding frame and a motor, wherein a roller is arranged at the bottom of the base frame, and support sleeves are respectively arranged in the middle of both sides of the base frame, and a plug-in frame is inserted in the support sleeve, and a wire wheel assembly is arranged on the top of the plug-in frame, and a pull rope is arranged on the wire wheel assembly, and the left end of the pull rope is connected to the winding frame, and the winding frame is fixed to the left end of the base frame, and a motor is arranged on one side of the winding frame, and the right end of the pull rope is connected to an H-shaped bracket, and there are two H-shaped brackets, and a screw is arranged between the bottoms of the two H-shaped brackets.

[0006] There are two winding frames, and a rotating shaft is rotatably connected between the two winding frames, and a motor is arranged on one side of one of the winding frames.

[0007] A tightening bolt is arranged outside the supporting sleeve to fix the inserting frame and the supporting sleeve together.

[0008] A second bracket is arranged outside the supporting sleeve, the second bracket is distributed in an L shape, and a second limiting rope is arranged between two corresponding second brackets on the left and right.

[0009] Plug holes are dug on both sides of the rack respectively, a first bracket is inserted into the plug hole, and the first bracket is fixedly connected to the rack by bolts, and a first limiting rope is arranged between the two first brackets corresponding to the left and right.

[0010] The wire wheel assembly consists of a first wire wheel and a second wire wheel. The front end and the rear end of the top of the plug-in rack are respectively provided with the first wire wheel, and the top of the plug-in rack is provided with the second wire wheel.

[0011] The H-shaped bracket is fixedly connected together by bolts and screw rods.

[0012] A lifting lug is arranged on the top of the H-shaped bracket.

[0013] The construction method of a photovoltaic foundation installation platform on a building roof comprises the following steps: S1. Installation of foundation steel: Make the foundation steel of the cabinet according to the size of the cabinet. Find the pre-embedded iron parts of the civil engineering after the installation conditions are met. Position the foundation steel in the vertical and horizontal directions according to the dimensions of the construction drawing. Use supporting iron parts to ensure that the foundation steel does not deviate. Use wooden wedges to adjust the foundation steel so that the elevation meets the requirements and its upper surface is horizontal. Weld the foundation steel, supporting iron parts, and pre-embedded iron parts firmly. S2. Align the cabinet in place: ①. Mark the installation position of the cabinet on the foundation according to the order specified in the installation drawing, move the entire cabinet to the installation site manually, and then accurately adjust the cabinet for the first time. The verticality of the four sides should meet the requirements; ② When installing in a row, the horizontal error between the tops of two adjacent cabinets should not exceed 2mm, the maximum horizontal error of the tops of the cabinets in the entire row should not exceed 5mm, the unevenness of the surfaces of two adjacent cabinets should not exceed 1mm, and the unevenness of the surfaces of the entire row of cabinets should not exceed 5mm; the gap between the joints of two adjacent cabinets should not exceed 2mm; ③. When the cabinet is deformed, add the tightening screws between the cabinets to adjust it according to the actual situation; when the cabinet needs to be pried in place, the prying point should be on the inner base of the cabinet; it is strictly forbidden to use metal steel parts to contact the outer surface of the cabinet to prevent damage to the surface paint; S3. Cabinet fixing: The cabinet can be fixed only after it is in place and aligned. The switch cabinet is fixed by welding. When the switch cabinet is fixed by welding, the welding part should be on the inner side of the four corners of the bottom of the plate, and the welding length is generally 20-40mm. The welding should be firm and reliable. When there is a shim between the plate and the foundation steel, the shim should be welded to the foundation steel and the plate. The welding slag should be removed from the welding place and anti-rust paint and topcoat should be applied. S4. Make an inverter bracket and install the inverter bracket on the photovoltaic bracket using hot-dip galvanized bolts; S5. Place the inverter on two H-shaped brackets, and place the H-shaped brackets on the base frame, and move the inverter by the rollers at the bottom of the base frame until the inverter moves to the inverter bracket; S6. Adjust the position of the bracket in the support sleeve according to the height of the inverter bracket, and then connect the right end of the pull rope to the lifting ear at the top of the H-shaped bracket; S7, start the motor to move the H-shaped bracket upward along the first limit rope and the second limit rope until the inverter is hoisted to the installation height, and the staff installs and fixes the inverter; S8. The photovoltaic DC wiring is connected to the inverter through the bridge after the string is connected as required, and the inverter is tested.

[0014] The positive beneficial effects of the present invention are: 1. The present invention sets a roller assembly on the top of the rack, and cooperates with the use of the motor and the winding rack to hoist the inverter to the installation height. At the same time, the inverter can also be moved by using the device, which reduces the burden on the staff and improves the work efficiency.

[0015] 2. The present invention sets a first limit rope and a second limit rope on the right side of the support sleeve and the plug-in bracket to avoid collision between the inverter and the support sleeve or the plug-in bracket during the lifting process, thereby preventing damage to the inverter. This protects the inverter to a certain extent and extends the service life of the inverter.

[0016] 3. The present invention has a plug-in bracket inserted on the top of the support sleeve, and the height of the plug-in bracket can be adjusted according to different installation positions, thereby meeting the lifting requirements, and the use is flexible and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 is a schematic structural diagram of the first bracket of the present invention; Figure 3 It is a schematic diagram of the structure of the H-shaped bracket of the present invention; Wherein: 1-base frame, 2-roller, 3-winding frame, 4-rotating shaft, 5-motor, 6-support sleeve, 7-insertion frame, 8-first wire wheel, 9-second wire wheel, 10-insertion hole, 11-first bracket, 12-first limiting rope, 13-second bracket, 14-second limiting rope, 15-H-type bracket, 16-screw, 17-lifting ear. DETAILED DESCRIPTION

[0018] The present invention will be further explained and illustrated below in conjunction with the accompanying drawings: Example 1, see Figure 1-Figure 3A photovoltaic foundation installation platform on the roof of a building includes a base frame 1, a roller 2, a winding frame 3 and a motor 5. The roller 2 is arranged at the bottom of the base frame 1, and support sleeves 6 are respectively arranged in the middle of both sides of the base frame 1. A plug-in frame 7 is inserted in the support sleeve 6, and a wire wheel assembly is arranged on the top of the plug-in frame 7. A pulley is arranged on the wire wheel assembly. The left end of the pulley is connected to the winding frame 3, and the winding frame 3 is fixed to the left end of the base frame 1. A motor 5 is arranged on one side of the winding frame 3, and the right end of the pulley is connected to the H-shaped bracket 15. There are two H-shaped brackets 15, and a screw 16 is arranged between the bottoms of the two H-shaped brackets 15.

[0019] There are two winding frames 3 , and a rotating shaft 4 is rotatably connected between the two winding frames 3 , and a motor 5 is arranged on one side of one of the winding frames 3 .

[0020] A tightening bolt is arranged outside the supporting sleeve 6 to fix the inserting frame 7 and the supporting sleeve 6 together.

[0021] A second bracket 13 is arranged outside the supporting sleeve 6 . The second bracket 13 is distributed in an L shape, and a second limiting rope 14 is arranged between two corresponding second brackets 13 on the left and right.

[0022] Plug holes 10 are dug on both sides of the insertion frame 7 respectively, a first bracket 11 is inserted into the plug hole 10, and the first bracket 11 is fixedly connected to the insertion frame 7 by bolts, and a first limiting rope 12 is set between the two corresponding first brackets 11 on the left and right.

[0023] The wire wheel assembly consists of a first wire wheel 8 and a second wire wheel 9 . The first wire wheel 8 is respectively arranged at the front end and the rear end of the top of the insertion rack 7 , and the second wire wheel 9 is arranged at the top of the insertion rack 7 .

[0024] The H-shaped bracket 15 is fixedly connected together by bolts and screw rods 16 .

[0025] A lifting lug 17 is arranged on the top of the H-shaped bracket 15 .

[0026] In the above description, there are two H-shaped brackets, each with a through hole on its side, and a sleeve on one side of the through hole. The screw passes through the sleeve and is fixed by bolts on the outside of the sleeve. When in use, the positions of the two H-shaped brackets are adjusted according to the overall length of the inverter.

[0027] In the above description, the spacing between the inner walls of the H-shaped bracket satisfies that the inverter can be placed in the H-shaped bracket.

[0028] In the above description, the first bracket and the second bracket are two identical brackets, both of which are distributed in an L shape. The distance between the two corresponding first brackets or second brackets on the left and right is greater than the length of the inverter, that is, the inverter moves up along the first limit rope and the second limit rope.

[0029] In the above description, the first limiting rope and the second limiting rope are both hemp ropes, and the spacing between the upper and lower adjacent hemp ropes is the same; the upper and lower adjacent hemp ropes form a mesh, so that the inverter can be kept away from the supporting sleeve and the rack.

[0030] In the above description, there are four second limiting ropes, and the upper and lower spacings of the four limiting ropes are the same.

[0031] In the above description, the number of the first limiting ropes is determined according to the extension height of the insertion rack.

[0032] Embodiment 2, the construction method of the above-mentioned photovoltaic foundation installation platform on the roof of a building comprises the following steps: S1. Installation of foundation steel: Make the foundation steel of the cabinet according to the size of the cabinet. Find the pre-embedded iron parts of the civil engineering after the installation conditions are met. Position the foundation steel in the vertical and horizontal directions according to the dimensions of the construction drawing. Use supporting iron parts to ensure that the foundation steel does not deviate. Use wooden wedges to adjust the foundation steel so that the elevation meets the requirements and its upper surface is horizontal. Weld the foundation steel, supporting iron parts, and pre-embedded iron parts firmly. S2. Align the cabinet in place: ①. Mark the installation position of the cabinet on the foundation according to the order specified in the installation drawing, move the entire cabinet to the installation site manually, and then accurately adjust the cabinet for the first time. The verticality of the four sides should meet the requirements; ② When installing in a row, the horizontal error between the tops of two adjacent cabinets should not exceed 2mm, the maximum horizontal error of the tops of the cabinets in the entire row should not exceed 5mm, the unevenness of the surfaces of two adjacent cabinets should not exceed 1mm, and the unevenness of the surfaces of the entire row of cabinets should not exceed 5mm; the gap between the joints of two adjacent cabinets should not exceed 2mm; ③. When the cabinet is deformed, add the tightening screws between the cabinets to adjust it according to the actual situation; when the cabinet needs to be pried in place, the prying point should be on the inner base of the cabinet; it is strictly forbidden to use metal steel parts to contact the outer surface of the cabinet to prevent damage to the surface paint; S3. Cabinet fixing: The cabinet can be fixed only after it is in place and aligned. The switch cabinet is fixed by welding. When the switch cabinet is fixed by welding, the welding part should be on the inner side of the four corners of the bottom of the plate, and the welding length is generally 20-40mm. The welding should be firm and reliable. When there is a shim between the plate and the foundation steel, the shim should be welded to the foundation steel and the plate. The welding slag should be removed from the welding place and anti-rust paint and topcoat should be applied. S4. Make an inverter bracket and install the inverter bracket on the photovoltaic bracket using hot-dip galvanized bolts; S5, placing the inverter on two H-shaped brackets 5, and placing the H-shaped brackets 5 on the base frame 1, and moving the inverter by the rollers at the bottom of the base frame 1 until the inverter moves to the inverter bracket; S6. Adjust the position of the bracket 7 in the support sleeve 6 according to the height of the inverter bracket, and then connect the right end of the pull rope to the lifting ear 17 at the top of the H-shaped bracket 15; S7, start the motor 5, so that the H-shaped bracket 15 moves up along the first limiting rope 12 and the second limiting rope 14 until the inverter is hoisted to the installation height, and the staff installs and fixes the inverter; S8. The photovoltaic DC wiring is connected to the inverter through the bridge after the string is connected as required, and the inverter is tested.

[0033] In the above description, there are four rollers, which are respectively located at the four corners of the base frame.

[0034] In the above description, there are two winding frames, which are located on both sides of the left end of the base frame and correspond to the positions of the wire wheels on the top of the insertion rack respectively; the inner wall of each winding frame is rotatably connected to a connecting shaft, and the connecting shaft is fixedly connected to the rotation, and the output end of the motor is fixedly connected to the connecting shaft of one of the winding frames, and under the action of the motor, the wire-releasing and wire-reeling operations can be realized.

[0035] In the above description, the motor is fixed to the base frame via a support plate.

[0036] In the above description, a draw rope is wound around the winding frame.

[0037] In the above description, after the inverter is installed, it is necessary to conduct an inspection before the inverter is powered on; check to ensure that the inverter DC circuit breakers are all in the OFF position; check whether the inverter has been installed and wired in accordance with the user manual, design drawings, installation requirements, etc.; check to confirm that all screws, cables, and connectors in the machine are firmly connected, and the components (such as absorption capacitors, soft start resistors, etc.) are not loose or damaged; check that the lightning arrester and fuse are intact and not damaged; check to confirm that the polarity of the DC connection cable is correct and the terminal connection is firm; check the AC cable connection, voltage level, phase sequence, and terminal connection are firm; check all connection wire ends for insulation damage, wire breakage, etc., and use an insulation resistance tester to check the insulation resistance of the cable to ground to ensure good insulation; check whether the communication cable of the inverter is firmly connected and whether the wiring polarity of all inverter communication terminals is consistent; In the above description, you also need to check the inverter settings to select the time when there is sufficient sunlight. After confirming that the polarity of the string wiring is correct, disconnect the AC circuit breaker on the inverter output side and turn the inverter DC switch to the "ON" position; if the DC voltage exceeds the inverter starting voltage, its LCD screen is activated, and the operation buttons are pressed to check whether the inverter's country code, protection parameter settings, and time settings are correct. If it is the first time to power on, set the parameters according to the operation manual; check whether the inverter's communication connection is successful; after the inspection, turn the inverter DC switch to the "OFF" position.

[0038] The present invention arranges a roller assembly on the top of the rack, and cooperates with the use of a motor and a winding frame to hoist the inverter to the installation height to meet the installation of inverters at different heights. At the same time, the device can also be used to move the inverter, which reduces the burden on the staff, improves work efficiency, is flexible to use, simple to operate, and easy to promote.

Claims

1. A photovoltaic foundation installation platform on a building roof, comprising a base frame (1), a roller (2), a winding frame (3) and a motor (5), characterized in that: A roller (2) is arranged at the bottom of the base frame (1), support sleeves (6) are arranged in the middle of both sides of the base frame (1), a plug-in frame (7) is inserted in the support sleeve (6), a wire wheel assembly is arranged at the top of the plug-in frame (7), a pull rope is arranged on the wire wheel assembly, the left end of the pull rope is connected to the winding frame (3), the winding frame (3) is fixed to the left end of the base frame (1), a motor (5) is arranged on one side of the winding frame (3), the right end of the pull rope is connected to an H-shaped bracket (15), there are two H-shaped brackets (15), and a screw rod (16) is arranged between the bottoms of the two H-shaped brackets (15).

2. A photovoltaic foundation installation platform on a building roof according to claim 1, characterized in that: There are two winding frames (3), and a rotating shaft (4) is rotatably connected between the two winding frames (3), and a motor (5) is provided on one side of one of the winding frames (3).

3. A photovoltaic foundation installation platform on a building roof according to claim 1, characterized in that: A tightening bolt is provided on the outside of the support sleeve (6) so that the inserting frame (7) and the support sleeve (6) are fixedly connected together.

4. A building roof photovoltaic foundation installation platform according to claim 1, characterized in that: A second bracket (13) is arranged outside the support sleeve (6), the second bracket (13) is distributed in an L shape, and a second limiting rope (14) is arranged between two corresponding second brackets (13) on the left and right.

5. The photovoltaic foundation installation platform on the building roof according to claim 1, characterized in that: Insertion holes (10) are respectively dug on both sides of the insertion frame (7), a first bracket (11) is inserted into the insertion hole (10), and the first bracket (11) and the insertion frame (7) are fixedly connected together by bolts, and a first limiting rope (12) is arranged between the two first brackets (11) corresponding to the left and right.

6. A building roof photovoltaic foundation installation platform according to claim 1, characterized in that: The wire wheel assembly consists of a first wire wheel (8) and a second wire wheel (9), the first wire wheel (8) being respectively arranged at the front end and the rear end of the top of the inserting frame (7), and the second wire wheel (9) being arranged at the top of the inserting frame (7).

7. The photovoltaic foundation installation platform on the building roof according to claim 1, characterized in that: The H-shaped bracket (15) is fixedly connected together by bolts and screw rods (16).

8. The photovoltaic foundation installation platform on the building roof according to claim 1, characterized in that: A lifting lug (17) is provided on the top of the H-shaped bracket (15).

9. A construction method for a photovoltaic foundation installation platform on a building roof as claimed in any one of claims 1 to 8, characterized in that: The steps include: S1. Installation of foundation steel: Make the foundation steel of the cabinet according to the size of the cabinet. Find the pre-embedded iron parts of the civil engineering after the installation conditions are met. Position the foundation steel in the vertical and horizontal directions according to the dimensions of the construction drawing. Use supporting iron parts to ensure that the foundation steel does not deviate. Use wooden wedges to adjust the foundation steel so that the elevation meets the requirements and its upper surface is horizontal. Weld the foundation steel, supporting iron parts, and pre-embedded iron parts firmly. S2. Align the cabinet in place: ①. Mark the installation position of the cabinet on the foundation according to the order specified in the installation drawing, move the entire cabinet to the installation site manually, and then accurately adjust the cabinet for the first time. The verticality of the four sides should meet the requirements; ② When installing in a row, the horizontal error between the tops of two adjacent cabinets should not exceed 2mm, the maximum horizontal error of the tops of the cabinets in the entire row should not exceed 5mm, the unevenness of the surfaces of two adjacent cabinets should not exceed 1mm, and the unevenness of the surfaces of the entire row of cabinets should not exceed 5mm; the gap between the joints of two adjacent cabinets should not exceed 2mm; ③. When the cabinet is deformed, add the tightening screws between the cabinets to adjust it according to the actual situation; when the cabinet needs to be pried in place, the prying point should be on the inner base of the cabinet; it is strictly forbidden to use metal steel parts to contact the outer surface of the cabinet to prevent damage to the surface paint; S3. Cabinet fixing: The cabinet can be fixed only after it is in place and aligned. The switch cabinet is fixed by welding. When the switch cabinet is fixed by welding, the welding part should be on the inner side of the four corners of the bottom of the plate, and the welding length is generally 20-40mm. The welding should be firm and reliable. When there is a shim between the plate and the foundation steel, the shim should be welded to the foundation steel and the plate. The welding slag should be removed from the welding place and anti-rust paint and topcoat should be applied. S4. Make an inverter bracket and install the inverter bracket on the photovoltaic bracket using hot-dip galvanized bolts; S5, placing the inverter on two H-shaped brackets (5), and placing the H-shaped brackets (5) on the base frame (1), and moving the inverter by means of rollers at the bottom of the base frame (1) until the inverter moves to the inverter bracket; S6. Adjust the position of the insert bracket (7) in the support sleeve (6) according to the height of the inverter bracket, and then connect the right end of the pull rope to the lifting ear (17) at the top of the H-shaped bracket (15); S7, starting the motor (5), so that the H-shaped bracket (15) moves upward along the first limiting rope (12) and the second limiting rope (14) until the inverter is hoisted to the installation height, and the staff installs and fixes the inverter; S8. The photovoltaic DC wiring is connected to the inverter through the bridge after the string is connected as required, and the inverter is tested.

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