Photovoltaic panel mounting rack and mounting method for large-scale photovoltaic array

Abstract

The invention discloses a photovoltaic panel mounting rack for a large-scale photovoltaic array and a mounting method, and belongs to the technical field of photovoltaic panel mounting. The mounting frame comprises a first frame body and a second frame body which are hinged to each other, the first frame body and the second frame body are of the same structure and each comprise a rectangular cabinet frame, a plurality of supporting rods and a photovoltaic panel fixing component, the multiple supporting rods are evenly distributed in the rectangular frame, and the interior of the rectangular frame is divided into multiple photovoltaic panel mounting areas by the multiple supporting rods; a photovoltaic panel fixing part is arranged in each photovoltaic panel mounting area and comprises a shaft rod, an upper baffle, a lower baffle and a handle rod, the two ends of the shaft rod are rotatably connected with the upper side and the lower side of the rectangular frame respectively, threads are arranged on the upper portion of the shaft rod, the upper baffle is in threaded connection with the shaft rod, and the lower baffle is fixedly arranged on the top face of a lower side rod of the rectangular frame; the lower end of the shaft rod penetrates through the rectangular frame and is connected with a handle rod. Labor can be saved, and the installation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic panel installation, and specifically to a photovoltaic panel mounting rack and an installation method for a large-scale photovoltaic array. Background Art

[0002] A photovoltaic array is a DC power generation unit formed by assembling a number of photovoltaic modules or photovoltaic panels mechanically and electrically in a certain manner and having a fixed support structure. It is large in scale and difficult to install. Photovoltaic panels are usually installed in an inclined manner using a built-in mounting rack. Moreover, in order to ensure the effective use of the occupied space, double rows of photovoltaic panels are usually installed on the mounting rack. Since the upper row of photovoltaic panels is relatively high, during installation, the photovoltaic panels need to be assembled on a flat photovoltaic panel installation platform first, and then the whole is lifted into place to an inclined state to complete the installation of the entire photovoltaic panel. However, the photovoltaic panels have a large span and need to be fixed by multiple fastening bolts. In order to facilitate the work, installation workers even step on the photovoltaic panels, which easily causes the photovoltaic panels to break. In addition, this installation and fixing method overly relies on manual labor and has a low installation efficiency. Summary of the Invention

[0003] In view of this, the present invention provides a photovoltaic panel mounting rack and an installation method for a large-scale photovoltaic array in view of the deficiencies of the prior art.

[0004] To solve the above technical problems, the technical solution adopted by the present invention is: A photovoltaic panel mounting rack for a large-scale photovoltaic array includes a first frame body and a second frame body that are hinged to each other. The first frame body and the second frame body have the same structure, and both include a rectangular frame, a support rod, and a photovoltaic panel fixing component. A plurality of the support rods are evenly arranged inside the rectangular frame, and the plurality of support rods divide the inside of the rectangular frame into a plurality of photovoltaic panel installation areas. A photovoltaic panel fixing component is arranged in each photovoltaic panel installation area. The photovoltaic panel fixing component includes a shaft rod, an upper baffle, a lower baffle, and a handle rod. The two ends of the shaft rod are rotatably connected to the upper and lower sides of the rectangular frame respectively. The upper part of the shaft rod is provided with threads, and the upper baffle is threadedly connected to the shaft rod. The lower baffle is fixedly arranged on the top surface of the lower side rod of the rectangular frame. The lower end of the shaft rod passes through the rectangular frame and is connected to the handle rod.

[0005] Further, first extension plates are arranged on the mutually approaching sides of the left side rod and the right side rod of the rectangular frame. The surface of the first extension plate is lower than the surface of the rectangular frame. Second extension plates are arranged on both sides of the support rod. The surface of the second extension plate is lower than the surface of the support rod.

[0006] Further, the upper end of the shaft rod of the first frame extends out of the rectangular frame and is threadedly connected to a fixing block. The cross-section of the fixing block is square. A square fixing hole is provided on the upper surface of the rectangular frame of the second frame. When the first frame is docked with the second frame, the fixing block enters the square fixing hole.

[0007] Further, first fixing columns are provided on the lower sides of the left rod, right rod, and support rod of the rectangular frame of the first frame, and second fixing columns are provided on the lower sides of the left rod, right rod, and support rod of the rectangular frame of the second frame. The lower ends of the first fixing column and the second fixing column are both connected to the concrete base.

[0008] Further, the upper end of the first fixing column is fixedly connected to the first frame, and the upper end of the second fixing column is hinged to the second frame.

[0009] Further, the second fixing column includes a rod body, a cylinder body, and a U-shaped base. The upper end of the rod body is connected to the hinge seat on the lower side of the second frame, and the lower end is inserted into the cylinder body. The rod body and the cylinder body are connected by a first bolt, and the cylinder body and the U-shaped base are connected by a second bolt.

[0010] Further, a strip-shaped hole is provided in the vertical direction at the lower end of the cylinder body. The second bolt passes through the strip-shaped hole. A limit groove is provided on the bottom surface of the cylinder body, and a limit block is provided in the U-shaped base. When the second bolt is located at the upper end of the strip-shaped hole, the limit block is clamped in the limit groove.

[0011] The present invention also provides a method for installing photovoltaic panels for a large-scale photovoltaic array, including the following steps:

[0012] S1. Incline and fix the first frame on one side of the concrete base through a plurality of first fixing columns, and install the second frame on the other side of the concrete base through a plurality of second fixing columns. The second frame is symmetrical to the first frame, and the second bolts in the second fixing columns are in a loose state;

[0013] S2. Place a plurality of photovoltaic panels in the plurality of photovoltaic panel installation areas of the first frame in sequence, and place a plurality of photovoltaic panels in the plurality of photovoltaic panel installation areas of the second frame on the other side in sequence;

[0014] S3. Rotate the plurality of handle rods on the second frame in sequence to rotate the shaft rod, and move the upper baffle downward to clamp the photovoltaic panels;

[0015] S4. Arrange a hoist on one side of the second frame, lift one side of the second frame, and rotate the second frame along the hinge point until it is in the same straight line as the first frame. At this time, the fixing block at the top of the first frame is aligned with the square fixing hole on the second frame;

[0016] S5. Tighten and fix the first bolt and the second bolt in the second fixing column;

[0017] S6. Rotate the multiple handle rods on the first frame body in sequence to make the shaft rod rotate and the upper baffle move downward to clamp and fix the photovoltaic panel. At the same time, the fixing block at the top of the first frame body enters the square fixing hole on the second frame body for connection and fixation.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] The photovoltaic panel mounting frame of the present invention for large-scale photovoltaic arrays adopts two mutually hinged frame bodies. Multiple photovoltaic panel mounting areas are separated by support rods on the two frame bodies. A photovoltaic panel fixing component is arranged in the middle of the mounting area. The lower end of the photovoltaic panel is fixed by the lower baffle, supported by the extension plates on both sides, and fixed by the downward-moving upper baffle at the upper end. Turning the handle can fix the photovoltaic panel, and the operation is very convenient. Moreover, the worker can operate the handle on the side of the frame body to fix it, avoiding affecting the photovoltaic panel. In addition, the shaft rod of the first frame body extends from the top and is threadedly connected to a fixing block. A square fixing hole is opened at the corresponding position on the top surface of the second frame body. When turning the handle, the fixing block enters the square fixing hole upward under the limiting action of the square fixing hole and the driving action of the shaft rod thread, to connect and fix the two frame bodies, ensuring the stability of the photovoltaic panel mounting frame. In addition, the second fixing column at the lower part of the second frame body is composed of a rod body, a cylinder body and a U-shaped base. The cooperation of the rod body and the cylinder body meets the requirements of length adjustment and fixation. The cylinder body and the U-shaped base are connected by bolts, and the bolts are located in the vertical strip-shaped holes. And the cooperation relationship between the limiting groove at the lower end of the cylinder body and the limiting block in the U-shaped base can meet the stability of the second frame body when installing the photovoltaic panel, as well as the length and angle changes of the second fixing column when the second frame body is lifted and rotated, and the convenient and reliable fixation of the second fixing column after the second frame body rotates in place.

[0020] The photovoltaic panel mounting method of the present invention for large-scale photovoltaic arrays first obliquely fixes the first frame body on one side of the concrete foundation through multiple first fixing columns, and installs the second frame body on the other side of the concrete foundation through multiple second fixing columns. Then, place multiple photovoltaic panels on the first frame body and the second frame body in sequence. After fixing the photovoltaic panel on the second frame body, lift the second frame body until it rotates to be in the same straight line as the first frame body. Then tighten the two bolts on the second fixing column to form a support. Then rotate the handle rod of the first frame body. On the one hand, make the upper baffle move downward to fix the photovoltaic panel. On the other hand, the fixing block on the first frame body enters the square fixing hole on the second frame body for connection and fixation. Through the mutual cooperation of the photovoltaic panel mounting frame and the mounting method of the present invention, not only the convenience of photovoltaic panel installation and fixation is improved, manpower is saved, and the installation efficiency is increased, but also the safety of the photovoltaic panel and personnel is ensured. Description of the Drawings

[0021] Figure 1 is a schematic diagram of the partial structure of an embodiment of the present invention;

[0022] Figure 2 is a side view of one state of an embodiment of the present invention;

[0023] Figure 3 is Figure 2 an enlarged cross-sectional view of the partial A in

[0024] Figure 4 is a side view of another state of an embodiment of the present invention;

[0025] Figure 5 is Figure 4 an enlarged cross-sectional view of the partial B in

[0026] Figure 6 is Figure 4 an enlarged cross-sectional view of the partial C in

[0027] Figure 7 is a schematic diagram of the structure of the second fixing column in an embodiment of the present invention;

[0028] Figure 8 is a cross-sectional view of the U-shaped base in another embodiment of the present invention;

[0029] In the figure: 1 - first frame body, 2 - second frame body, 3 - rectangular frame, 4 - support rod, 5 - shaft rod, 6 - upper baffle, 7 - lower baffle, 8 - handle rod, 9 - first extension plate, 10 - second extension plate, 11 - fixing block, 12 - square fixing hole, 13 - first fixing column, 14 - second fixing column, 15 - concrete base, 16 - photovoltaic panel, 141 - rod body, 142 - cylinder body, 143 - U-shaped base, 144 - first bolt, 145 - limiting strip, 146 - clamping groove, 147 - second bolt, 148 - strip-shaped hole, 149 - limiting groove, 150 - limiting block. Specific Embodiments

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention fall within the scope of protection of the present invention.

[0031] Embodiment: As shown in Figures 1 to 7As shown in the figure, a mounting rack for photovoltaic panels of a large-scale photovoltaic array includes a first frame body 1 and a second frame body 2 that are hinged to each other. The first frame body 1 and the second frame body 2 have the same structure, and both include a rectangular frame 3, a support rod 4, and a photovoltaic panel fixing component. A plurality of the support rods 4 are evenly arranged inside the rectangular frame 3. The plurality of support rods 4 divide the interior of the rectangular frame into a plurality of photovoltaic panel installation areas. The photovoltaic panel fixing component is arranged in each photovoltaic panel installation area. The photovoltaic panel fixing component includes a shaft rod 5, an upper baffle 6, a lower baffle 7, and a handle rod 8. Both ends of the shaft rod 5 are rotatably connected to the upper and lower sides of the rectangular frame 3 respectively. The upper part of the shaft rod 5 is provided with threads. The upper baffle 6 is threadedly connected to the shaft rod 5. The lower baffle 7 is fixedly arranged on the top surface of the lower side rod of the rectangular frame 3. The lower end of the shaft rod 5 passes through the rectangular frame 3 and is connected to the handle rod 8.

[0032] Specifically, first extension plates 9 are arranged on the sides of the left and right rods of the rectangular frame 3 close to each other. The surface of the first extension plate 9 is lower than the surface of the rectangular frame 3. Second extension plates 10 are arranged on both sides of the support rod 4. The surface of the second extension plate 10 is lower than the surface of the support rod 4. The surface of the support rod 4 and the surface of the rectangular frame 3 are in the same plane.

[0033] The upper end of the shaft rod 5 of the first frame body 1 extends out of the rectangular frame 3 and is threadedly connected to a fixing block 11. Specifically, a blind hole is formed in the bottom surface of the fixing block 11, and threads are arranged in the blind hole. The upper end of the shaft rod 5 is threadedly connected to the blind hole. The cross-section of the fixing block 11 is square. A square fixing hole 12 is arranged on the upper surface of the rectangular frame of the second frame body 2. The square fixing hole 12 is a stepped hole. When the first frame body 1 and the second frame body 2 are butted, the fixing block 11 enters the square fixing hole 12 under the rotation action of the shaft rod 5.

[0034] First fixing columns 13 are arranged on the left and right rods of the rectangular frame of the first frame body 1 and the lower side of the support rod 4. Second fixing columns 14 are arranged on the left and right rods of the rectangular frame of the second frame body 2 and the lower side of the support rod 4. The lower ends of the first fixing column 13 and the second fixing column 14 are respectively connected to a concrete base 15.

[0035] The upper end of the first fixing column 13 is fixedly connected to the first frame body 1 and makes the first frame body 1 inclined. In Henan region, the inclination angle is usually set to 45°. The upper end of the second fixing column 14 is hinged to the second frame body 2.

[0036] The second fixing column 14 includes a rod body 141, a cylinder body 142 and a U-shaped base 143. The upper end of the rod body 141 is connected to the hinge seat on the lower side of the second frame body 2, and the lower end is inserted into the cylinder body 142. Screw holes are provided on both the cylinder body 142 and the rod body 141, and the rod body 141 and the cylinder body 142 are connected by a first bolt 144; the cross sections of both the cylinder body 142 and the rod body 141 are square, and there are limiting strips 145 on both sides inside the cylinder body 142, and clamping grooves 146 are provided on both sides of the rod body 141. The limiting strips 145 are clamped in the clamping grooves 146 and can slide with damping. The number of the cylinder bodies 142 is one, two or more, which can be set according to the required length of the second fixing column 14. The cylinder bodies 142 are combined with each other, and the connection method is the same as the connection method of the above-mentioned rod body 141 and cylinder body 142.

[0037] The cylinder body 142 and the U-shaped base 143 are connected by a second bolt 147. The U-shaped base 143 includes two parallel side plates, and through holes are provided on the side plates. Strip-shaped holes 148 are provided on both sides of the lower end of the cylinder body 142 in the vertical direction. The second bolt 147 passes through the two strip-shaped holes 148. A limiting groove 149 is provided on the bottom surface of the cylinder body 142, and a limiting block 150 is provided inside the U-shaped base 143. When the second bolt 147 is located at the upper end of the strip-shaped hole 148, the limiting block 150 is clamped in the limiting groove 149. When the second bolt 147 is located at the lower end of the strip-shaped hole 148, the limiting block 150 is separated from the limiting groove 149. The advantage of such a setting is that: during the installation of the photovoltaic panel, in the first stage, the second frame body 2 and the first frame body 1 are in a symmetrical state (in this way, the height of the second frame body 2 is low, which is convenient for placing the photovoltaic panel 16 into the second frame body 2). At this time, the second fixing column 14 is affected by the gravity of the second frame body 2 above it, and the cylinder body 142 moves downward. The second bolt 147 is located at the upper end of the strip-shaped hole 148. At this time, the limiting block 150 is clamped with the limiting groove 149, that is, the cylinder body 142 (the second fixing column) can maintain an upright state, thereby ensuring the stability of the second frame body 2; in the second stage, when the second frame body 2 is lifted, the cylinder body 142 moves upward, so that the second bolt 147 is located at the lower end of the strip-shaped hole 148. At this time, the limiting block 150 is separated from the limiting groove 149, so that the lower end of the cylinder body 142 can rotate by a certain angle, thus not affecting the stretching and rotation of the second fixing column 14 during lifting.

[0038] The embodiment of the present invention also provides a photovoltaic panel installation method using the above-mentioned photovoltaic panel mounting frame for a large-scale photovoltaic array, and the steps are as follows:

[0039] S1. Fix the first frame body 1 on one side of the concrete base 15 at an inclination of 45° through a plurality of first fixing columns 13, and install the second frame body 2 on the other side of the concrete base 15 through a plurality of second fixing columns 14. The second frame body 2 and the first frame body 1 are symmetrical to each other, and the second bolt 147 in the second fixing column 14 is in a loose state;

[0040] S2. Place multiple photovoltaic panels 16 in the multiple photovoltaic panel installation areas of the first frame 1 in sequence, and on the other side, place multiple photovoltaic panels 16 in the multiple photovoltaic panel installation areas of the second frame 2 in sequence;

[0041] S3. Rotate the multiple handle rods 8 on the second frame 2 in sequence to make the shaft rod 5 rotate, and the upper baffle 6 move downward to clamp the photovoltaic panel 16;

[0042] S4. Arrange a hoist on one side of the second frame 2 and lift one side of the second frame 2. Since the cylinder body 142 and the rod body 141 of the second fixing column 14 are in damping sliding connection, the lower end of the cylinder body 142 first moves upward, that is, the limiting block 150 is separated from the limiting groove 149, so that the second frame 2 rotates along the hinge point until it is in the same straight line as the first frame 1. At this time, the fixing block 11 at the top of the first frame 1 is aligned with the square fixing hole 12 on the second frame 2;

[0043] S5. Tighten and fix the first bolt 144 and the second bolt 147 in the second fixing column 14;

[0044] S6. Rotate the multiple handle rods 8 on the first frame 1 in sequence to make the shaft rod 5 rotate, and the upper baffle 6 move downward to clamp the photovoltaic panel 16. At the same time, the fixing block 11 at the top of the first frame 1 enters the square fixing hole 12 on the second frame 2 for connection and fixation.

[0045] In other embodiments, as Figure 8 shown, upper and lower two through holes are opened on both side plates of the U-shaped base 143, that is, an additional second bolt 147 is added. The distance between the two second bolts 147 matches the length of the strip hole 148. In the above installation method step S5, after tightening and fixing the first bolt and the second bolt of the second fixing column, then pass the additional second bolt 147 through the through hole and the upper end of the strip hole, and tighten and fix it, so as to improve the stability of the second fixing column.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still modify the specific implementation manners of the present invention or make equivalent replacements. Any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention are within the scope of the claims of the present invention.

Claims

1. A photovoltaic panel mounting frame for a large-scale photovoltaic array, characterized in that: It comprises a first frame body and a second frame body which are hinged to each other, the first frame body and the second frame body have the same structure, both comprise a rectangular cabinet frame, a support rod and a photovoltaic panel fixing component, a plurality of the support rods are evenly arranged inside the rectangular frame, the plurality of the support rods divide the interior of the rectangular frame into a plurality of photovoltaic panel installation areas, the photovoltaic panel fixing component is arranged in each of the photovoltaic panel installation areas, the photovoltaic panel fixing component comprises a shaft rod, an upper baffle plate, a lower baffle plate and a handle rod, the two ends of the shaft rod are rotatably connected to the upper and lower sides of the rectangular frame respectively, the upper part of the shaft rod is provided with a thread, the upper baffle plate is threadedly connected to the shaft rod, the lower baffle plate is fixedly arranged on the top surface of the lower rod of the rectangular frame, the lower end of the shaft rod passes through the rectangular frame and is connected to the handle rod.

2. The photovoltaic panel mounting frame for a large-scale photovoltaic array according to claim 1, characterized in that: A first extension plate is provided on the side where the left and right rods of the rectangular cabinet frame are close to each other, and the surface of the first extension plate is lower than the surface of the rectangular frame. A second extension plate is provided on both sides of the support rod, and the surface of the second extension plate is lower than the surface of the support rod.

3. The photovoltaic panel mounting frame for a large-scale photovoltaic array according to claim 1, characterized in that: The upper end of the shaft rod of the first frame extends out from the rectangular frame and is threadedly connected to a fixing block. The cross-section of the fixing block is square. A square fixing hole is arranged on the upper surface of the rectangular frame of the second frame. When the first frame is docked with the second frame, the fixing block enters the square fixing hole.

4. The photovoltaic panel mounting frame for a large-scale photovoltaic array according to claim 1, characterized in that: The first frame body has a rectangular frame with a left side bar, a right side bar and a lower side of a support bar provided with a first fixing column, and the second frame body has a rectangular frame with a left side bar, a right side bar and a lower side of a support bar provided with a second fixing column, and the lower ends of the first fixing column and the second fixing column are connected to a concrete base.

5. The photovoltaic panel mounting frame for a large-scale photovoltaic array according to claim 4, characterized in that: The upper end of the first fixing column is fixedly connected to the first frame, and the upper end of the second fixing column is hinged to the second frame.

6. The photovoltaic panel mounting frame for a large-scale photovoltaic array according to claim 5, characterized in that: The second fixing column includes a rod body, a cylinder body and a U-shaped base, the upper end of the rod body is connected to the hinge seat on the lower side of the second frame body, and the lower end is inserted into the cylinder body, the rod body and the cylinder body are connected by a first bolt, and the cylinder body and the U-shaped base are connected by a second bolt.

7. The photovoltaic panel mounting frame for a large-scale photovoltaic array according to claim 6, characterized in that: A strip hole is provided at the lower end of the cylinder in a vertical direction, and the second bolt passes through the strip hole. A limiting groove is provided on the bottom surface of the cylinder, and a limiting block is provided in the U-shaped base. When the second bolt is located at the upper end of the strip hole, the limiting block is clamped in the limiting groove.

8. A method for installing photovoltaic panels for a large-scale photovoltaic array, characterized in that: The following steps are involved: S1. The first frame is fixed obliquely on the concrete base on one side through a plurality of first fixing columns, and the second frame is installed on the concrete base on the other side through a plurality of second fixing columns. The second frame is symmetrical to the first frame, and the second bolts in the second fixing columns are loosened; S2, placing a plurality of photovoltaic panels in a plurality of photovoltaic panel installation areas of the first frame in sequence, and placing a plurality of photovoltaic panels in a plurality of photovoltaic panel installation areas of the second frame in sequence on the other side; S3, rotating the multiple handle bars on the second frame in sequence, so that the shaft bar rotates, the upper baffle plate moves downward, and the photovoltaic panel is clamped; S4, arrange a crane on one side of the second frame, lift one side of the second frame, and rotate the second frame along the hinge point until it is in the same straight line with the first frame. At this time, the fixing block on the top of the first frame is aligned with the square fixing hole on the second frame; S5, tighten and fix the first bolt and the second bolt in the second fixing column; S6. The plurality of handle bars on the first frame are rotated in sequence to rotate the shaft bar, and the upper baffle plate moves downward to clamp the photovoltaic panel. At the same time, the fixing block on the top of the first frame enters the square fixing hole on the second frame to connect and fix.

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