A photovoltaic support system suitable for complex terrain

Abstract

This invention provides a photovoltaic (PV) support structure suitable for complex terrain. The PV support structure includes a PV panel mounting frame and a support frame. The PV panel mounting frame includes a supporting base plate, and the support frame is mounted on the bottom of the supporting base plate. The support frame includes two sets of angle adjustment frames. Each set of angle adjustment frames includes front and rear support rods and a first adjustment rod. The front and rear support rods of each set of angle adjustment frames are connected by an angle adjustment mechanism. Clamping rods are hinged to the lower parts of the front and rear support rods. Clamping mechanisms are respectively provided between the two front support rods and the two rear support rods of the two sets of angle adjustment frames. The clamping mechanism includes a first clamping rod and a second clamping rod. This invention can be stably placed in the gaps between protruding stones or rocks, further adapting the equipment to different complex terrains, facilitating transportation and installation, and enabling stable adjustment of the PV panel angle.

Description

Technical Field

[0001] This invention relates to the field of solar photovoltaic power generation technology, and in particular to a photovoltaic support structure suitable for complex terrain. Background Technology

[0002] Solar photovoltaic (PV) brackets are special supports designed for placing, installing, and fixing solar panels in a solar photovoltaic power generation system. The advantages of PV bracket support systems for supporting solar panels extend far beyond simple production and installation. Solar panels can be flexibly moved according to sunlight and seasons. The slope of each solar panel can be adjusted by moving fasteners to accommodate different angles of sunlight, and then tightened again to accurately fix the solar panel in the designated position.

[0003] Existing photovoltaic (PV) mounting systems are typically either adjustable or non-adjustable, and both require placement on a flat, open surface. The area must be leveled before placement. Adjustable systems usually use multiple push rods connected together, allowing angle adjustment via these rods. Adjustment is necessary when needed. For example, Chinese invention patent CN112688627A discloses a PV mounting system including purlins for supporting PV modules, columns for vertical fixation to a horizontal mounting surface, a main beam axially mounted on the columns, and support members for mounting the purlins on the main beam. It also includes a first drive mechanism, a movable component, a fixing component, and a second drive mechanism. This invention, with the first and second gear threads separated, uses the second drive mechanism to rotate the main beam to adjust the angle, allowing simultaneous angle adjustment of the mounting systems in the same row, thus providing convenient angle adjustment.

[0004] The aforementioned existing adjustable-angle photovoltaic brackets are mostly designed for installation on flat ground. They have strict requirements for the placement site and cannot maintain stability when placed on slopes, rocks, or uneven and complex terrain. Furthermore, the main rotating beam will bend when the terrain is uneven, making it impossible to accurately adjust the angle of the photovoltaic panels. Therefore, they are not widely applicable.

[0005] Based on this, the present invention provides a photovoltaic support suitable for complex terrain. Summary of the Invention

[0006] This invention addresses the aforementioned technical problems by providing a photovoltaic support structure suitable for complex terrain and its installation and usage method. The photovoltaic support structure can be stably installed in uneven and complex terrain areas with protruding rocks or rocky areas, and can provide stable support. It also allows for easy adjustment of the tilt angle of the photovoltaic system, facilitating transportation and installation.

[0007] To achieve the above-mentioned technical objectives, the present invention provides a photovoltaic support system suitable for complex terrain, comprising a photovoltaic panel mounting frame and a support frame. The photovoltaic panel mounting frame includes a support base plate, and the support frame is installed at the bottom of the support base plate. The support frame includes two sets of angle adjustment frames. Each set of angle adjustment frames includes a front support rod, a rear support rod, and a first adjustment rod. The front and rear support rods are not at the same height and are rotatably connected to the support base plate in the same direction of rotation, resulting in the support base plate being tilted after connection. The front and rear support rods of each set of angle adjustment frames are connected by an angle adjustment mechanism. One end of the first adjustment rod is connected to the support base plate, and the other end is connected to one of the support rods. The angle adjustment mechanism includes two hollow support rods, each hollow support rod having a second adjustment rod slidably installed inside. The ends of the two second adjustment rods are respectively provided with a matching first sliding member and a second sliding member. The first sliding member and the second sliding member are vertically slidably connected, and a locking mechanism is provided at the connection point. Both the front and rear support rods are hinged with clamping rods at their lower parts. Clamping mechanisms are provided between the two front and two rear support rods of the two sets of angle adjustment frames. The clamping mechanism includes a first clamping rod and a second clamping rod. The first and second clamping rods are respectively fixedly installed on the clamping rods at the bottom of the two support rods on the same side by clamping blocks. The two clamping rods are arranged parallel to each other. Each clamping rod has a sliding groove and a first rack is installed in the sliding groove. A second knob and a third knob are rotatably installed on the first and second clamping rods, respectively. Each knob is equipped with a gear, and the end with the gear is embedded in the corresponding clamping rod sliding groove and meshes with the first rack in the corresponding clamping rod sliding groove. The second knob and the third knob are connected by a flip belt.

[0008] The preferred technical solution of the present invention is as follows: the angle adjustment mechanism is set on the upper part of the support rod, and two hollow support rods are respectively fixedly sleeved on the upper part of the front support rod and the rear support rod at the same height. The first sliding member is a vertically arranged sliding groove, and the second sliding member is a vertically arranged slider, which is correspondingly embedded in the sliding groove. A second rack is provided on the side of the second sliding member. At least two locking mechanisms are provided. Each locking mechanism includes a limiting block with locking teeth, an elastic pin, and a pin block fixed on the second sliding member. A limiting slot is correspondingly opened on the first sliding member, and the limiting slot is opened on the side of the second sliding member where the second rack is located. The limiting block is placed in the limiting slot, and the elastic pin passes through the pin block and is connected to the limiting block. The ends of the elastic pins of at least two locking mechanisms away from the limiting blocks are connected by a pressing plate, and under the action of the pressing plate and the elastic pin, the limiting blocks are driven to move in the limiting slots, so that the locking teeth of the limiting block engage with or separate from the rack on the side of the second sliding member.

[0009] The preferred technical solution of the present invention is as follows: a support plate is fixedly installed on the support base plate, a clamping plate is slidably installed on the support plate, a first knob is rotatably installed on the clamping plate, the first knob is slidably engaged with the support base plate, and a clamping block is assembled on the clamping plate with a lead screw.

[0010] The preferred technical solution of the present invention is as follows: the front support rod and the rear support rod are both formed by connecting at least two prefabricated support rods through flange compass connectors. The flange compass connectors on two adjacent prefabricated support rods are fixedly connected by bolts. The clamping rod is connected to the corresponding prefabricated rod through a rotating joint, and the two clamping rods on the same side rotate in the same direction, both rotating towards the installation direction of the clamping mechanism.

[0011] A preferred technical solution of the present invention is as follows: the first adjusting rod is connected to the rear support rod, an adjusting block is fixedly installed above the angle adjusting mechanism of the rear support rod, and the first adjusting rod is hinged to the adjusting block; the bottom ball joint of the clamping rod has a supporting foot.

[0012] A preferred technical solution of the present invention is as follows: the first clamping rod and the second clamping rod are arranged side by side, and the sliding groove on the outer second clamping rod is a through hole. The second knob and the third knob both extend into the sliding groove of the first clamping rod through the sliding groove on the second clamping rod. The gear on the second knob is installed in the area of ​​its location in the sliding groove of the first clamping rod and meshes with the rack in the sliding groove of the first clamping rod. The gear on the third knob is installed in the area of ​​its location in the sliding groove of the second clamping rod and meshes with the rack in the sliding groove of the second clamping rod.

[0013] The beneficial effects of this invention compared to the prior art are: (1) The support rod of the present invention is provided with a clamping mechanism at the lower part, and the device can be placed more stably in the gap between protruding stones or rocks through the clamping mechanism, so that the device can be further adapted to different complex terrains.

[0014] (2) The present invention is provided with an angle adjustment mechanism, which includes an adjustment frame connected to the front and rear support legs and an tilting frame connecting the adjustment frame and the photovoltaic panel bracket. The angle of the photovoltaic panel mounting bracket can be fixed by the angle adjustment mechanism, and the connection between the first prefabricated support rod and the second prefabricated support rod is made more stable. (3) The support leg of the present invention is composed of multiple support legs connected by a flange compass connector, so that the support frame can be installed in an assembled form. When the required support column length varies greatly in complex terrain, it can be transported and installed more conveniently, and the installation accuracy is guaranteed. (4) The present invention is provided with a photovoltaic panel fixing frame, which is equipped with a clamping mechanism, which can facilitate the quick installation of photovoltaic panels and ensure that the photovoltaic panels are firmly installed. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the angle adjustment mechanism of the present invention; Figure 3 This is a partial cross-sectional view of the angle adjustment mechanism of the present invention; Figure 4 This is a partial cross-sectional view of the clamping mechanism of the present invention; Figure 5 This is a schematic diagram of the flange compass connector structure of the present invention; Figure 6 for Figure 1 Enlarged structural diagram at point A1 Figure 7 This is a schematic diagram of the overall structure of the photovoltaic panel mounting frame of the present invention; Figure 8 This is a schematic diagram of the bottom structure of the photovoltaic panel mounting frame of the present invention; Figure 9 This is a schematic diagram of the third knob structure of the present invention; Figure 10 This is a schematic diagram of the second knob structure of the present invention.

[0016] Reference numerals: 1-Photovoltaic panel mounting frame; 101-Pattern; 102-Support base plate; 103-First knob; 104-Clamping plate; 105-Clamping block; 2-Support frame; 201-Front support rod; 202-Rotating joint; 203-Clamping rod; 204-Support foot; 205-Flange compass connector; 206-Rear support rod; 207-Adjusting block; 208-First adjusting rod; 3-Clamping mechanism; 300-First clamping rod; 3 01-Clamping block; 302-Second clamping rod; 303-Second knob; 304-Flipping belt; 305-Third knob; 306-First rack; 307-Gear; 4-Angle adjustment mechanism; 400-First sliding member; 401-Hollow support rod; 402-Second adjusting rod; 403-Second sliding member; 404-Press plate; 405-Limiting block; 406-Second rack; 407-Elastic pin; 408-Pin block. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments. Figures 1 to 10 All accompanying drawings are simplified versions of embodiments and are intended only to clearly and concisely illustrate the embodiments of the present invention. The technical solutions shown in the drawings below are specific solutions of embodiments of the present invention and are not intended to limit the scope of the claimed invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] In the description of this invention, it should be understood that the terms "upper," "lower," "inner," "outer," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0019] This invention is mainly applicable to uneven and complex terrain, such as slopes, surfaces with protruding rocks, piles of stones, and other uneven ground.

[0020] An embodiment provides a photovoltaic support system suitable for complex terrain, such as... Figures 1-10 As shown, the system includes a support frame 2 and a photovoltaic panel mounting frame 1. The photovoltaic panel mounting frame 1 includes a support base plate 102, on which a tray 101 is fixedly mounted. A clamping plate 104 is slidably mounted on the tray 101. A first knob 103 is rotatably mounted on the clamping plate 104. The first knob 103 is slidably engaged with the support base plate 102. A clamping block 105 is mounted on the clamping plate 104 via a screw thread. The tray 101 is used to place solar panels. The clamping plate 104 slides on the tray 101 through the bolt engagement between the first knob 103 and the clamping block 105, thereby clamping the solar panels. The support frame 2 is installed at the bottom of the support base plate 102. The support base plate 102 includes two sets of angle adjustment frames. Each set of angle adjustment frames includes a front support rod 201, a rear support rod 206, and a first adjustment rod 208. The front support rod 201 and the rear support rod 206 are not at the same height. Both the front support rod 201 and the rear support rod 206 are formed by connecting two prefabricated support rods through a flange compass connector 205 and fixed by bolts. The flange compass connector 205 on the two prefabricated support rods, the front support rod 201 and the rear support rod The lower prefabricated support rods of 206 have the same height and structure. The height of the prefabricated support rods on the upper part of the rear support rod 206 is greater than that on the upper part of the front support rod 201. Four rotating supports are provided at the bottom of the support base plate 102. The two sets of angle-adjustable front support rods 201 and rear support rods 206 are rotatably connected to the rotating supports on the support base plate 102 via rotating shafts. The rotation direction of each set of angle-adjustable front support rods 201 and rear support rods 206 is the same, rotating back and forth, resulting in the support base plate 102 being inclined at the front and higher at the back. In mountainous and hilly areas with significant slope variations, the required length of the support columns varies considerably. Using prefabricated rods connected by flange compass fittings makes transportation and installation more convenient, giving the device a greater advantage in mountainous and hilly areas.

[0021] An embodiment provides a photovoltaic support system suitable for complex terrain, such as... Figures 1-3 As shown, the front support rod 201 and the rear support rod 206 of each angle adjustment frame are connected by an angle adjustment mechanism 4. One end of the first adjustment rod 208 is connected to the support base plate 102, and the other end is connected to the rear support rod 206. An adjustment block 207 is fixedly installed above the angle adjustment mechanism 4 of the rear support rod 206. The first adjustment rod 208 and the adjustment block 207 are hinged together. The angle adjustment mechanism 4 includes two hollow support rods 401, with a second adjustment rod 402 slidably installed inside each hollow support rod 401. At the ends of the two second adjustment rods 402, a matching first sliding member 400 and a second sliding member 403 are respectively provided. The first sliding member 400 and the second sliding member 403 are vertically slidably connected, and a locking mechanism is provided at the connection point. The angle adjustment mechanism 4 is located on the upper part of the support rods. The two hollow support rods 401 are respectively fixedly sleeved on the upper parts of the front support rod 201 and the rear support rod 206 at the same height. The first sliding member 400 is a vertically arranged groove, and the second sliding member 403 is a vertically arranged slider, correspondingly embedded in the groove. A second rack 406 is provided on the side of the second sliding member 403. The locking mechanism is provided with... Two locking mechanisms are provided, each including a limiting block 405 with locking teeth, an elastic pin 407, and a pin block 408 fixed on the second sliding member 403. A limiting slot is correspondingly provided on the first sliding member 400, and the limiting slot is provided on the side of the second sliding member 403 where the second rack 406 is located. The limiting block 405 is placed in the limiting slot, and the elastic pin 407 passes through the pin block 408 and is connected to the limiting block 405. The end of the elastic pin 407 of the two locking mechanisms away from the limiting block 405 is connected by a pressing plate 404, and under the action of the pressing plate 404 and the elastic pin 407, the limiting block 405 is moved in the limiting slot, so that the locking teeth of the limiting block 405 engages with or separates from the rack on the side of the second sliding member 403.

[0022] In this embodiment, the first adjusting rod 208 is used to support the support base plate 102 and also to adjust the angle of the support base plate 102. The first adjusting rod 208 is driven by the adjusting block 207 to lift the support base plate 102, causing the support base plate 102 to rotate on the rear support rod 206, thus achieving the function of adjusting the angle. In this embodiment, the angle adjusting mechanism 4 adjusts the height difference between the front support rod 201 and the rear support rod 206, thereby achieving the angle adjustment of the support base plate 102. When the angle adjusting mechanism 4 adjusts the angle of the support base plate 102, the photovoltaic bracket is not installed on flat ground. The adjustment process is as follows: first, press the button 404. The button 404 simultaneously drives the elastic pins 407 of the two sets of locking mechanisms to push the corresponding limit blocks 405 horizontally, causing their toothed surfaces to separate from the rack on the side of the second sliding member 403. At this time, the lock... When the fastening mechanism is released, the first sliding member 400 and the second sliding member 403 can slide up and down to adjust the height difference between the front support rod 201 and the rear support rod 206, thereby adjusting the angle of the support base plate 102. At the same time, the angle of the support base plate 102 can be fixed by moving the first adjusting rod 208. After adjusting to a suitable angle, the pressing plate 404 is released, and the elastic pin 407 returns to its original position under the action of the elastic force, so that the locking tooth surface of the limiting block 405 can engage and lock with the rack on the side of the second sliding member 403.

[0023] An embodiment provides a photovoltaic support system suitable for complex terrain, such as... Figure 1 , Figures 4 to 6As shown, both the front support rod 201 and the rear support rod 206 are hinged to clamping rods 203 at their lower parts. The clamping rods 203 are connected to their corresponding precast rods via rotating joints 202. The two clamping rods 203 on the same side rotate in the same direction, both towards the installation direction of the clamping mechanism 3, i.e., left and right rotation. The bottom of the clamping rod 203 has a ball joint with a support foot 204. The ball joint connection between the support foot 204 and the clamping rod 203 allows the support foot 204 to be in maximum contact with the ground, facilitating the stabilization of the device's position. Clamping mechanisms 3 are respectively provided between the two front support rods 201 and the two rear support rods 206 of the two sets of angle adjustment frames; the clamping mechanism 3 includes a first clamping rod 300 and a second clamping rod 302 arranged side by side, the first clamping rod 300 and the second clamping rod 302 are slidably engaged with each other, the first clamping rod 300 and the second clamping rod 302 are respectively fixedly installed on the clamping rods 203 at the bottom of the two support rods on the same side by clamping fixing blocks 301, each clamping rod is provided with a sliding groove, and a first rack 306 is installed in the sliding groove, the sliding groove on the outer side of the second clamping rod 302 is a through hole, and the first clamping rod 300 and the second clamping rod 302 are respectively screwed on The device is equipped with a second knob 303 and a third knob 305, each knob having a corresponding gear 307. Both the second knob 303 and the third knob 305 extend through the groove on the second clamping rod into the groove of the first clamping rod 300. The gear on the second knob 303 is installed in the area of ​​its location within the groove of the first clamping rod 300 and meshes with the rack in the groove of the first clamping rod 300. The gear on the third knob 305 is installed in the area of ​​its location within the groove of the second clamping rod 302 and meshes with the rack in the groove of the second clamping rod 302. The second knob 303 and the third knob 305 are connected by a flip belt 304. Rotating the second knob 303 or the third knob 305 can cause the second knob 303 and the third knob 305 to rotate in opposite directions. The rotation of the second knob 303 and the third knob 305 causes the two clamping rods 302 to slide relative to each other. The clamping rods 302 drive the clamping block 301 to move. The clamping block 301 makes a small adjustment to the angle between the two standard prefabricated support rods 202. The support foot 204 can clamp protruding stones or support itself in the gap between two rocks, allowing the equipment to be placed in more complex terrain.

[0024] Working principle: When installing photovoltaic brackets in complex terrains such as mountains and hills, prefabricated support rods that make up the support rods can be prefabricated as needed. Then, the flange compass connectors 205 fixedly installed on the two prefabricated support rods are bolted together. Then, the angle of the support base plate 102 is adjusted according to the actual situation. By pressing the button 404, the toothed surface on the limit block 405 and the second rack 406 on the second sliding member 403 are no longer engaged with each other, so that the second adjusting rod 402 can slide back and forth. Then, the adjusting block 207 is moved to adjust the angle of the support base plate 102. When the appropriate angle is reached, the button 404 is released, and the limit block 405 springs back, so that the toothed surface on the limit block 405 engages with the second rack 406 on the second sliding member 403 and locks the two sliding members in place, thus fixing the angle of the support base plate 102 and completing the adjustment of the angle of the support base plate 102. Simultaneously, the clamping mechanism 3 is adjusted according to the terrain where the device is placed. If the device is located on a protruding rock or in a crevice, the second knob 303 or the third knob 305 needs to be rotated. This rotates the second knob 303 and the third knob 305 in opposite directions via the rotating belt 304. The distance between the lower clamping rods 203 of the two support rods on the same side is adjusted by the two clamping rods. Since the two clamping rods 203 are rotatably connected to the support rods, during the adjustment process, the lower parts of the two clamping rods 203 will move closer or further apart, thus increasing or decreasing the distance between the support legs 204. When the distance between the support legs 204 increases, the two clamping rods can be placed on both sides of the protruding rock. When the rotation of the second knob 303 or the third knob 305 is released, the two clamping rods will rebound to their original angle due to the elasticity of the material itself, clamping the rock and making the device more stable on the protruding rock. When the distance between the support legs 204 decreases, the device can be placed in the gap or groove between two rocks. The rebound of the clamping rods presses against the stone walls on both sides of the gap or groove, making the device more stable in the gap or groove between the rocks. After the photovoltaic bracket is installed, the solar panel is installed. By rotating the first knob 103, the distance between the clamping plate 104 and the support plate 101 is increased. Then, the solar panel is inserted into the gap between the clamping plate 104 and the support plate 101. Then, the first knob 103 is rotated in the opposite direction to decrease the distance between the clamping plate 104 and the support plate 101, and the solar panel is clamped by the clamping plate 104.

[0025] The above description is merely one embodiment of the present invention, and while it is detailed and specific, it should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A photovoltaic support suitable for complex terrain, comprising a photovoltaic panel mounting frame (1) and a support frame (2), the photovoltaic panel mounting frame (1) comprising a support base plate (102), the support frame (2) being mounted at the bottom of the support base plate (102), characterized in that: The support frame (2) includes two sets of angle adjustment frames. Each set of angle adjustment frames includes a front support rod (201), a rear support rod (206), and a first adjustment rod (208). The front support rod (201) and the rear support rod (206) are not at the same height, and the front support rod (201) and the rear support rod (206) are rotatably connected to the support base plate (102) respectively, and the rotation direction is the same. The rear support base plate (102) is in an inclined state. The front support rod (201) and the rear support rod (206) of each set of angle adjustment frames are connected by an angle adjustment mechanism (4). One end of the first adjusting rod (208) is connected to the support base plate (102), and the other end is connected to one of the support rods; the angle adjusting mechanism (4) includes two hollow support rods (401), and a second adjusting rod (402) is slidably installed in each hollow support rod (401). A first sliding member (400) and a second sliding member (403) that match each other are respectively provided at the ends of the two second adjusting rods (402). The first sliding member (400) and the second sliding member (403) are vertically slidably connected, and a locking mechanism is provided at the connection part; The lower parts of the front support rod (201) and the rear support rod (206) are both hinged with clamping rods (203). Clamping mechanisms (3) are respectively provided between the two front support rods (201) and the two rear support rods (206) of the two sets of angle adjustment frames. The clamping mechanism (3) includes a first clamping rod (300) and a second clamping rod (302). The first clamping rod (300) and the second clamping rod (302) are respectively fixedly installed on the clamping rods (203) at the bottom of the two support rods on the same side by clamping fixing blocks (301). The two clamping rods are mutually... The clamping rods are arranged in parallel. Each clamping rod has a groove and a first rack (306) is installed in the groove. A second knob (303) and a third knob (305) are rotatably installed on the first clamping rod (300) and the second clamping rod (302), respectively. Each knob is equipped with a gear (307), and one end of the gear (307) is embedded in the groove of the corresponding clamping rod and meshes with the first rack (306) in the groove of the corresponding clamping rod. The second knob (303) and the third knob (305) are connected by a flip belt (304). The angle adjustment mechanism (4) is set on the upper part of the support rod. Two hollow support rods (401) are fixedly sleeved on the upper part of the front support rod (201) and the rear support rod (206) at the same height. The first sliding member (400) is a vertically arranged groove, and the second sliding member (403) is a vertically arranged slider, which is correspondingly embedded in the groove. A second rack (406) is provided on the side of the second sliding member (403). At least two locking mechanisms are provided. Each locking mechanism includes a limiting block (405) with a locking tooth, an elastic pin (407), and a pin block (408) fixed on the second sliding member (403). A corresponding opening is provided on the first sliding member (400). A limiting slot is provided, and the limiting slot is opened on the side of the second sliding member (403) where the second rack (406) is provided. The limiting block (405) is placed in the limiting slot. The elastic pin (407) passes through the pin block (408) and is connected to the limiting block (405). The end of the elastic pin (407) of at least two locking mechanisms away from the limiting block (405) is connected by a pressing plate (404). Under the action of the pressing plate (404) and the elastic pin (407), the limiting block (405) is driven to move in the limiting slot, so that the tooth surface of the limiting block (405) engages with the rack on the side of the second sliding member (403) or separates from the rack on the side of the second sliding member (403).

2. A photovoltaic support system suitable for complex terrain according to claim 1, characterized in that: A support plate (101) is fixedly installed on the support base plate (102), a clamping plate (104) is slidably installed on the support plate (101), a first knob (103) is rotatably installed on the clamping plate (104), the first knob (103) is slidably engaged with the support base plate (102), and a clamping block (105) is assembled on the screw of the clamping plate (104).

3. A photovoltaic support system suitable for complex terrain according to claim 1, characterized in that: The front support rod (201) and the rear support rod (206) are both formed by connecting at least two prefabricated support rods through flange compass connectors (205). The flange compass connectors (205) on two adjacent prefabricated support rods are fixedly connected by bolts. The clamping rod (203) is connected to the corresponding prefabricated rod through a rotating joint (202). The two clamping rods (203) on the same side rotate in the same direction, both rotating towards the installation direction of the clamping mechanism (3).

4. A photovoltaic support system suitable for complex terrain according to claim 1, characterized in that: The first adjusting rod (208) is connected to the rear support rod (206). An adjusting block (207) is fixedly installed above the angle adjusting mechanism (4) of the rear support rod (206). The first adjusting rod (208) is hinged to the adjusting block (207). The bottom ball joint of the clamping rod (203) has a supporting foot (204).

5. A photovoltaic support system suitable for complex terrain according to claim 1, characterized in that: The first clamping rod (300) and the second clamping rod (302) are arranged side by side, and the groove on the outer second clamping rod (302) is a through hole. The second knob (303) and the third knob (305) both extend into the groove of the first clamping rod (300) through the groove on the second clamping rod. The gear on the second knob (303) is installed in the area of ​​its location in the groove of the first clamping rod (300) and meshes with the rack in the groove of the first clamping rod (300). The gear on the third knob (305) is installed in the area of ​​its location in the groove of the second clamping rod (302) and meshes with the rack in the groove of the second clamping rod (302).

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