阅读说明：本技术 一种光伏设备用固定装置及其使用方法 (Fixing device for photovoltaic equipment and using method thereof ) 是由 张正勇 于 2021-06-23 设计创作，主要内容包括：本发明涉及光伏技术领域。目的在于提供一种光伏设备用固定装置,包括底架、伸缩调节杆和用于安装光伏板的固定架；所述固定架下端与底架铰接,固定架的中部与伸缩调节杆的上端铰接,所述伸缩调节杆的下端与底架铰接,且与底架之间形成钝角α；所述固定架包括方形的边框,所述边框上沿边框的上下方向均匀设置有多组柔性固定组件,所述光伏板通过柔性固定组件安装在边框上,每一组所述柔性固定组件对应的边框两侧的框体上左右对称设置有上下三对横向的通孔,每一组所述通孔对应的光伏板背面均固定设置有三对穿绳套管。本发明能够有效的缓冲强风施加在光伏板上的不良影响,避免光伏板受到灾害性破坏。(The invention relates to the technical field of photovoltaics. The fixing device for the photovoltaic equipment comprises a bottom frame, a telescopic adjusting rod and a fixing frame for mounting a photovoltaic panel; the lower end of the fixed frame is hinged with the underframe, the middle part of the fixed frame is hinged with the upper end of the telescopic adjusting rod, the lower end of the telescopic adjusting rod is hinged with the underframe, and an obtuse angle alpha is formed between the lower end of the telescopic adjusting rod and the underframe; the fixing frame comprises a square frame, a plurality of groups of flexible fixing assemblies are evenly arranged on the frame along the vertical direction of the frame, the photovoltaic panel is installed on the frame through the flexible fixing assemblies, each group is formed by arranging three pairs of transverse through holes in a vertically symmetrical mode on the frame body on two sides of the frame corresponding to the flexible fixing assemblies, and each group is formed by fixedly arranging three pairs of rope penetrating sleeves on the back face of the photovoltaic panel corresponding to the through holes. The invention can effectively buffer the adverse effect of strong wind on the photovoltaic panel and avoid the photovoltaic panel from being damaged by disasters.)

1. A fixing device for photovoltaic equipment comprises a bottom frame (1), a telescopic adjusting rod (2) and a fixing frame (3) for mounting a photovoltaic panel (0); the lower end of the fixed frame (3) is hinged with the bottom frame (1), the middle part of the fixed frame (3) is hinged with the upper end of the telescopic adjusting rod (2), the lower end of the telescopic adjusting rod (2) is hinged with the bottom frame (1), and an obtuse angle alpha is formed between the lower end of the telescopic adjusting rod and the bottom frame (1);

the method is characterized in that: the fixing frame (3) comprises a square frame (4), a plurality of groups of flexible fixing assemblies are uniformly arranged on the frame (4) along the vertical direction of the frame (4), the photovoltaic panel (0) is installed on the frame (4) through the flexible fixing assemblies, three pairs of transverse through holes are symmetrically arranged on the frame body at the two sides of the frame (4) corresponding to each group of flexible fixing assemblies from top to bottom, and three pairs of rope penetrating sleeves (5) are fixedly arranged on the back surface of the photovoltaic panel (0) corresponding to each group of through holes;

the flexible fixing assembly comprises a fixing steel rope (6), a buffer spring (7) and a supporting head (8), the fixing steel rope (6) is matched with the rope threading sleeve (5), the fixing steel rope (6) penetrates through holes in two sides of the frame (4) in an S shape, and the middle section of the fixing steel rope (6) penetrates through the rope threading sleeve (5); the support head (8) is fixedly arranged at two ends of the fixed steel rope (6), a buffer spring (7) is fixedly arranged on the outer surface of the frame (4) opposite to the support head (8), the fixed steel rope (6) penetrates through the buffer spring (7), and the support head (8) is abutted against the outer end of the buffer spring (7) to form elastic traction on the fixed steel rope (6).

2. The fixture for photovoltaic equipment according to claim 1, characterized in that: the bending part of the middle section of the fixed steel rope (6) is wound on a guide wheel (9), and the guide wheel (9) is fixedly arranged on the frame (4).

3. The fixture for photovoltaic equipment according to claim 2, characterized in that: the buffer spring (7) is in a tower shape gradually reduced from the inner end to the outer end, and the support head (8) is in a cone frustum shape.

4. The fixture for photovoltaic equipment according to claim 3, characterized in that: the end part of the fixed steel rope (6) is fixedly provided with an external threaded column (10), the supporting head (8) is provided with an internal threaded hole matched with the external threaded column (10), and the external threaded column (10) penetrates through the internal threaded hole.

5. The fixture for photovoltaic equipment according to claim 4, wherein: and a layer of rubber gasket (11) is arranged on the surface of the frame (4) facing the back surface of the photovoltaic panel (0).

6. The fixture for photovoltaic equipment according to claim 5, wherein: the chassis (1) comprises two U-shaped grooves (12) which are arranged side by side, a supporting seat (13) is arranged at the position, opposite to the lower end of the telescopic adjusting rod (2), of each U-shaped groove (12), the lower end of the telescopic adjusting rod (2) is hinged to a hinge lug at the top of each supporting seat (13), each supporting seat (13) and each U-shaped groove (12) form sliding fit, and a first pressure limiting locking assembly is arranged at the position, opposite to each supporting seat (13), of each U-shaped groove (12); a cross shaft (14) is arranged at the lower end of the fixing frame (3), adjusting holes (15) matched with the cross shaft (14) are formed in the groove walls of the two sides of the U-shaped groove (12), the adjusting holes (15) extend along the length direction of the U-shaped groove (12), the cross shaft (14) penetrates through the adjusting holes (15), and a second pressure limiting locking assembly connected with the cross shaft (14) is arranged in the U-shaped groove (12) at the position of the adjusting holes (15);

the first pressure limiting locking assembly comprises a short pipe (16) arranged on the outer side surface of the U-shaped groove (12), the short pipe (16) is communicated with a groove cavity of the U-shaped groove (12), a limiting ball (17), a ball pressing spring (18) and an adjusting block (19) are sequentially arranged in the short pipe (16) along the direction far away from the U-shaped groove (12), and the adjusting block (19) is in threaded fit with the short pipe (16); a limiting groove matched with the limiting ball (17) is formed in one side, opposite to the limiting ball (17), of the supporting seat (13), and the limiting ball (17) extends into the limiting groove under the pressing of a ball pressing spring (18) to form locking of the supporting seat (13);

the second pressure limiting locking assembly comprises a supporting sleeve (20) which is matched with the transverse shaft (14) and sleeved outside the transverse shaft (14), and a partition plate (21) is arranged in a U-shaped groove (12) at one end, far away from the telescopic adjusting rod (2), of the supporting sleeve (20); the partition plate (21) is provided with a guide hole, the second pressure limiting locking assembly further comprises a guide rod (22), the guide rod (22) penetrates through the guide hole, one end of the guide rod (22) is fixedly connected with the support sleeve (20), and the other end of the guide rod is provided with an end block (23); a sleeve supporting spring (24) is sleeved outside the guide rod (22) between the partition plate (21) and the supporting sleeve (20).

7. The fixture for photovoltaic equipment according to claim 6, wherein: a pneumatic slow descending rod is arranged between the support sleeve (20) and the support seat (13), the pneumatic slow descending rod comprises an outer cylinder (25) and an inner rod (26), one end of the inner rod (26) is fixedly connected with the support seat (13), the other end of the inner rod extends into one end of the outer cylinder (25), and the end part of the inner rod is provided with a piston matched with the outer cylinder (25); the other end of the outer cylinder (25) is fixedly connected with the support sleeve (20); a pumping and discharging valve (28) is arranged on the cylinder wall of one end, close to the supporting sleeve (20), of the outer cylinder (25), and air inlet micropores (29) are arranged on the cylinder wall of one end, far away from the supporting sleeve (20), of the outer cylinder (25).

8. The fixture for photovoltaic equipment according to claim 7, wherein: an outer hexagonal screwing head is arranged on the outer end face of the adjusting block (19).

9. The fixture for photovoltaic equipment according to claim 8, characterized in that: and two groups of guide rods (22) and sleeve supporting springs (24) are arranged on the supporting sleeve (20) of each group of second pressure limiting and locking assemblies.

10. Use of a fixture for photovoltaic plants according to claim 5, characterized in that it comprises the following steps:

A. aligning the photovoltaic panel (0) with the frame (4) and then flatly paving the photovoltaic panel on the frame (4);

B. a supporting head (8) at one end of a fixed steel rope (6) is installed, the other end of the fixed steel rope (6) is arranged in an S shape, bypasses a guide wheel (9), passes through a through hole, passes through a rope threading sleeve (5) and passes through a buffer spring (7);

C. then, a supporting head (8) for fixing the other end of the steel rope (6) is installed well, so that the supporting head and the buffer spring (7) form elastic traction;

D. and adjusting the supporting head (8) and the external thread column (10) to tighten the fixed steel rope (6) to complete the installation of the photovoltaic panel (0).

Technical Field

The invention relates to the technical field of photovoltaics, in particular to a fixing device for photovoltaic equipment and a using method thereof.

Background

Photovoltaic power generation is a technology for directly converting light energy into electric energy by utilizing the photovoltaic effect of a semiconductor interface, and in recent years, along with the increasing contradiction of world energy supply, more and more attention is paid to photoelectricity as sustainable clean energy, and the position of photoelectricity in an energy supply system is more and more important. In general, a photovoltaic system mainly comprises a photovoltaic panel, a junction box, an inverter, a grid-connected cabinet and the like, wherein the photovoltaic panel directly converts solar energy into electric energy, the electric energy is converted into alternating current through the junction box and the inverter, and the alternating current is combined with a power grid at the grid-connected cabinet. Photovoltaic panels generally need to be installed on photovoltaic supports for use, and due to the characteristic that photovoltaic panels need to be installed outdoors, extremely high requirements are also put forward on the comprehensive performance of photovoltaic supports, such as: rust resistance, support, adjustability, etc.

Because the flaky characteristic of photovoltaic board, the windward side is big, and installs in open air open terrain more, and the good direct relation of its wind-resistance is to the life of photovoltaic board, plays decisive meaning to its later stage maintain operation cost and economic output. Especially in areas with large wind power, if wind resistance of the photovoltaic panel and the photovoltaic support is lost, the photovoltaic panel and the photovoltaic support are easily damaged irreparably. In the traditional mode, aiming at the problems, the structural strength of the photovoltaic support is mainly improved, and the supporting rigidity of the photovoltaic support is improved, so that the photovoltaic support can resist strong wind, but the wind resistance effect obtained by the mode is limited, the photovoltaic support is suitable for areas with low wind power level, but the wind resistance performance cannot meet the requirements for areas with high wind power level.

Disclosure of Invention

The invention aims to provide a fixing device for photovoltaic equipment and a using method thereof, wherein the fixing device can improve the strong wind resistance.

In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: a fixing device for photovoltaic equipment comprises a bottom frame, a telescopic adjusting rod and a fixing frame for mounting a photovoltaic panel; the lower end of the fixed frame is hinged with the underframe, the middle part of the fixed frame is hinged with the upper end of the telescopic adjusting rod, the lower end of the telescopic adjusting rod is hinged with the underframe, and an obtuse angle alpha is formed between the lower end of the telescopic adjusting rod and the underframe;

the fixing frame comprises a square frame, a plurality of groups of flexible fixing assemblies are uniformly arranged on the frame along the vertical direction of the frame, the photovoltaic panel is arranged on the frame through the flexible fixing assemblies, three pairs of transverse through holes are symmetrically arranged on the frame body on two sides of the frame corresponding to each group of flexible fixing assemblies in a left-right mode, and three pairs of rope penetrating sleeves are fixedly arranged on the back face of the photovoltaic panel corresponding to each group of through holes;

the flexible fixing assembly comprises a fixing steel rope, a buffer spring and a supporting head, the fixing steel rope is matched with the rope threading sleeve, the fixing steel rope penetrates through holes in two sides of the frame in an S shape, and the middle section of the fixing steel rope penetrates through the rope threading sleeve; the support heads are fixedly arranged at two ends of the fixed steel rope, the outer surface of the frame opposite to the support heads is fixedly provided with a buffer spring, the fixed steel rope penetrates through the buffer spring, and the support heads abut against the outer end of the buffer spring to form elastic traction on the fixed steel rope.

Preferably, the bending part of the middle section of the fixed steel rope is wound on a guide wheel, and the guide wheel is fixedly arranged on the frame.

Preferably, the buffer spring is in a tower shape gradually reduced from the inner end to the outer end, and the supporting head is in a cone frustum shape.

Preferably, the end of the fixed steel rope is fixedly provided with an external threaded column, the support head is provided with an internal threaded hole matched with the external threaded column, and the external threaded column penetrates through the internal threaded hole.

Preferably, a layer of rubber gasket is arranged on the surface of the frame facing the back of the photovoltaic panel.

Preferably, the use method comprises the following steps:

A. aligning the photovoltaic panel with the frame and then flatly paving the photovoltaic panel on the frame;

B. installing a supporting head at one end of a fixed steel rope, arranging the other end of the fixed steel rope in an S shape, bypassing a guide wheel, passing through a through hole, passing through a rope threading sleeve and passing through a buffer spring;

C. then, a supporting head for fixing the other end of the steel rope is well installed, so that the supporting head and the buffer spring form elastic traction;

D. and adjusting the supporting head and the external thread column to tighten the fixed steel rope to complete the installation of the photovoltaic panel.

Preferably, the underframe comprises two U-shaped grooves arranged side by side, a supporting seat is arranged at the position of the U-shaped groove opposite to the lower end of the telescopic adjusting rod, the lower end of the telescopic adjusting rod is hinged with a hinge lug at the top of the supporting seat, the supporting seat and the U-shaped groove form sliding fit, and a first pressure limiting locking assembly is arranged at the position of the U-shaped groove opposite to the supporting seat; the lower end of the fixing frame is provided with a cross shaft, adjusting holes matched with the cross shaft are formed in the groove walls on the two sides of the U-shaped groove, the adjusting holes extend along the length direction of the U-shaped groove, the cross shaft penetrates through the adjusting holes, and a second pressure limiting locking assembly connected with the cross shaft is arranged in the U-shaped groove at the adjusting holes;

the first pressure limiting locking assembly comprises a short pipe arranged on the outer side surface of the U-shaped groove, the short pipe is communicated with a groove cavity of the U-shaped groove, a limiting ball, a ball pressing spring and an adjusting block are sequentially arranged in the short pipe along the direction far away from the U-shaped groove, and the adjusting block and the short pipe form threaded fit; a limiting groove matched with the limiting ball is formed in one side, opposite to the limiting ball, of the supporting seat, and the limiting ball extends into the limiting groove under the compression of the ball pressing spring to form a locking function for the supporting seat;

the second pressure limiting locking assembly comprises a supporting sleeve matched with the transverse shaft and sleeved outside the transverse shaft, and a partition plate is arranged in a U-shaped groove at one end, far away from the telescopic adjusting rod, of the supporting sleeve; the partition plate is provided with a guide hole, the second pressure limiting locking assembly further comprises a guide rod, the guide rod penetrates through the guide hole, one end of the guide rod is fixedly connected with the support sleeve, and the other end of the guide rod is provided with an end block; and a sleeve supporting spring is sleeved outside the guide rod between the partition plate and the supporting sleeve.

Preferably, a pneumatic slow descending rod is arranged between the support sleeve and the support seat, the pneumatic slow descending rod comprises an outer cylinder and an inner rod, one end of the inner rod is fixedly connected with the support seat, the other end of the inner rod extends into one end of the outer cylinder, and the end part of the inner rod is provided with a piston matched with the outer cylinder; the other end of the outer cylinder is fixedly connected with the support sleeve; and a pumping and discharging valve is arranged on the wall of the outer barrel close to one end of the support sleeve, and air inlet micropores are arranged on the wall of the outer barrel far away from one end of the support sleeve.

Preferably, an outer hexagonal screwing head is arranged on the outer end face of the adjusting block.

Preferably, two groups of guide rods and sleeve supporting springs are arranged on the supporting sleeve of each group of second pressure limiting and locking assemblies.

The beneficial effects of the invention are concentrated and expressed as follows: can effectual buffering strong wind exert the harmful effects on the photovoltaic board, avoid the photovoltaic board to receive disastrous destruction. Specifically, in the using process, the rigid fixing mode of the photovoltaic panel in the traditional mode is abandoned, and the photovoltaic panel is pressed against the frame by adopting the traction of the fixing steel rope; because the fixed steel rope has plasticity and certain elasticity, when wind power exerts influence on the photovoltaic panel, the stress can be buffered and released through the deformation of the fixed steel rope; meanwhile, the supporting head at the end part of the fixed steel rope is pressed against the buffer spring, the buffer spring is in a compression state under a normal state, the buffer spring always generates a traction force on the fixed steel rope, and the traction force promotes the fixed steel rope to be stretched straight, so that the photovoltaic panel is tightly attached to the frame. When being influenced by strong wind, the buffer spring can also buffer the stress through the deformation of the buffer spring. Therefore, compared with the traditional rigid fixing mode, the wind resistance of the invention is better.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure shown in FIG. 1 in a folded state;

FIG. 3 is a top view of the chassis;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is an enlarged view of portion B of FIG. 3;

FIG. 6 is a schematic view of a top view installation of a photovoltaic panel;

FIG. 7 is a rear view of FIG. 6;

FIG. 8 is a schematic structural view of the head;

fig. 9 is a view in the direction C-C of the structure shown in fig. 6.

Detailed Description

As shown in fig. 1 to 9, a fixing device for a photovoltaic device includes a bottom frame 1, a telescopic adjusting rod 2, and a fixing frame 3 for mounting a photovoltaic panel 0. The underframe 1 is installed on the ground as an installation foundation, and can be installed on the ground in various ways such as placing, anchoring and the like, and can be selected from the existing installation ways according to actual conditions. The lower end of the fixing frame 3 is hinged to the bottom frame 1, the middle of the fixing frame 3 is hinged to the upper end of the telescopic adjusting rod 2, the lower end of the telescopic adjusting rod 2 is hinged to the bottom frame 1, and an obtuse angle alpha is formed between the lower end of the telescopic adjusting rod and the bottom frame 1. Through adjusting the length of telescopic adjusting rod 2 to change the angle of mount 3, and then change the angle of installing photovoltaic board 0 on it.

Compared with the traditional photovoltaic support, the invention mainly improves the wind resistance of the photovoltaic support from two large plates, on one hand, the wind power is buffered and released in a flexible fixing mode, and on the other hand, the photovoltaic plate is automatically folded to realize protection.

In a first aspect, as shown in fig. 6 to 9, the fixing frame 3 includes a square frame 4, and the frame 4 is made of a light antirust material. The frame 4 is gone up and is evenly provided with the fixed subassembly of multiunit flexibility along the upper and lower direction of frame 4, as shown in fig. 7, the fixed subassembly of flexibility is provided with 3 groups from top to bottom. Photovoltaic board 0 passes through flexible fixed subassembly and installs on frame 4, and each group bilateral symmetry is provided with three upper and lower horizontal through-holes in the framework of the frame 4 both sides that flexible fixed subassembly corresponds, that is to say all is provided with the through-hole on the frame 4 of each group flexible fixed subassembly position, and the through-hole sets up in pairs in frame 4 both sides, has arranged three pairs from top to bottom. And three pairs of rope-penetrating sleeves 5 are fixedly arranged on the back surface of the photovoltaic panel 0 corresponding to each group of through holes. The flexible fixing component is compared with the traditional fixing component without buffer property, such as welding, clamping, bolt connection and the like, namely the fixing component with the buffer property.

As shown in fig. 7, the flexible fixing component includes a fixing steel rope 6, a buffer spring 7 and a support head 8, the fixing steel rope 6 is matched with the rope-threading sleeve 5, the fixing steel rope 6 passes through the through holes on two sides of the frame 4 in an S-shape, and the middle section of the fixing steel rope 6 is inserted into the rope-threading sleeve 5. The supporting heads 8 are fixedly arranged at two ends of the fixed steel rope 6, the buffer spring 7 is fixedly arranged on the outer surface of the frame 4 opposite to the supporting heads 8, the fixed steel rope 6 penetrates through the buffer spring 7, and the supporting heads 8 abut against the outer ends of the buffer spring 7 to form elastic traction on the fixed steel rope 6. In other words, under the elastic force of the buffer spring 7 and the self-tightening effect, the fixing steel rope 6 of the present invention applies a downward pulling force to the rope-threading sleeve 5 and the photovoltaic panel 0 as shown in fig. 9, so that the edge of the photovoltaic panel 0 is tightly attached to the surface of the frame 4, in order to ensure the attaching tightness and prevent rigid collision, a layer of rubber gasket 11 is disposed on the surface of the frame 4 facing the back of the photovoltaic panel 0, and the rubber gasket 11 generally has a certain thickness of about 1 CM.

The photovoltaic panel 0 is pressed against the frame by adopting the traction of the fixed steel rope 5 instead of a rigid fixing mode of the photovoltaic panel 0 in the traditional mode; because the fixed steel rope 6 has plasticity and certain elasticity, when wind power exerts influence on the photovoltaic panel 0, the stress can be buffered and released through the deformation of the fixed steel rope 6; meanwhile, the supporting head 8 at the end part of the fixed steel rope 6 is pressed against the buffer spring 7, the buffer spring 7 is in a compression state under a normal state, the buffer spring 7 always generates traction force on the fixed steel rope 6, and the traction force enables the fixed steel rope 6 to be stretched straightly, so that the photovoltaic panel 0 is tightly attached to the frame 4. When being affected by strong wind, the buffer spring 7 can also buffer the stress through self deformation. Therefore, compared with the traditional rigid fixing mode, the wind resistance of the invention is better.

Of course, in order to better realize the stretching and pulling of the fixed steel rope 6, the bent part of the middle section of the fixed steel rope 6 is wound on the guide wheel 9, and the guide wheel 9 is fixedly arranged on the frame 4. Of course, the upper and lower surfaces of the guide wheel 9 should be opposite to the through hole to keep the fixed steel cable 6 as straight as possible. In addition, guide pulley 9 can also install one along 4 width direction of frame flexible slide bar on, a second buffer spring of slide bar department mountable, second buffer spring has great rigidity, when wind-force is great, the compression of second buffer spring can provide bigger deformation margin for fixed steel cable 6 to have better buffering effect, and under normal condition, second buffer spring has sufficient rigidity, ensures that fixed steel cable 6 tightens.

In the use process of the traditional long-strip-shaped spiral spring, the phenomenon of bending towards the side part is easy to occur, in order to ensure that the buffer spring 7 can be compressed along the length direction of the fixed steel rope 6, the better way is that the buffer spring 7 is in a tower shape gradually reduced from the inner end to the outer end, and the support head 8 is in a cone frustum shape. The matching mode is very tight, the compression stability is good, and the lateral bending phenomenon of the spring can be prevented.

In addition, in order to facilitate the connection between the support head 8 and the fixed steel rope 6, an external threaded column 10 is fixedly arranged at the end of the fixed steel rope 6, an internal threaded hole matched with the external threaded column 10 is formed in the support head 8, and the external threaded column 10 is arranged in the internal threaded hole in a penetrating mode. In this way, the quick connection between the externally threaded column 10 and the support head 8 can be realized by rotating the support head 8. Meanwhile, the overall tightness of the fixed steel rope 6 can be changed by adjusting the extending length of the external thread column 10 in the supporting head 8, so that the invention has a certain adjusting function.

The use method of the fixing frame comprises the following steps:

A. the photovoltaic panel 0 is aligned with the frame 4 and then laid flat on the frame 4.

B. A supporting head 8 at one end of a fixed steel rope 6 is well installed, the other end of the fixed steel rope 6 is arranged in an S shape, and the supporting head bypasses a guide wheel 9, passes through a through hole, passes through a rope threading sleeve 5 and passes through a buffer spring 7.

C. Then, the supporting head 8 for fixing the other end of the steel rope 6 is well installed, so that the supporting head and the buffer spring 7 form elastic traction.

D. And adjusting the supporting head 8 and the external thread column 10 to tighten the fixed steel rope 6 to complete the installation of the photovoltaic panel 0.

From a second aspect, the present invention also has wind-folding resistance, that is, when the wind is too strong, the present invention can automatically fold, and the specific structure will be described in detail with reference to fig. 1 to 6.

As shown in fig. 3, the underframe 1 of the invention comprises two U-shaped grooves 12 arranged side by side, a support base 13 is arranged at the position of the U-shaped groove 12 opposite to the lower end of the telescopic adjusting rod 2, the lower end of the telescopic adjusting rod 2 is hinged with a hinge lug at the top of the support base 13, the support base 13 and the U-shaped groove 12 form a sliding fit, and a first pressure limiting locking assembly is arranged at the position of the U-shaped groove 12 opposite to the support base 13. That is to say, the hinged joint of the telescopic adjusting rod 2 and the base 1 is located at the supporting seat 13, and the supporting seat 13 is locked in the U-shaped groove 12 by limiting pressure, and when the pressure reaches a certain value and breaks through the limiting pressure limit, the supporting seat 13 can be unlocked and slide along the U-shaped groove 12, so that the fixing frame 3 is not supported any more, and the fixing frame 3 and the photovoltaic panel 0 thereon are folded and laid down.

Regarding the specific structure of the first pressure limiting and locking assembly, as shown in fig. 3 and 4, the first pressure limiting and locking assembly comprises a short pipe 16 arranged on the outer side surface of the U-shaped groove 12, the short pipe 16 is communicated with the groove cavity of the U-shaped groove 12, a limiting ball 17, a ball pressing spring 18 and an adjusting block 19 are sequentially arranged in the short pipe 16 along the direction far away from the U-shaped groove 12, and the adjusting block 19 and the short pipe 16 form threaded fit. One side of the supporting seat 13 opposite to the limiting ball 17 is provided with a limiting groove matched with the limiting ball 17, and the limiting ball 17 extends into the limiting groove under the pressure of the ball pressing spring 18 to form a locking for the supporting seat 13. In fig. 4, when the support 13 is pressed downward by the telescopic rod 2 and the pressing force is large enough, the limit ball 17 can be pressed back into the short tube 16 to unlock, and the support 13 can slide normally in the U-shaped groove 12. The invention can also adapt to different pressure limiting requirements by adjusting the compression degree of the ball pressing spring 18, and certainly, in order to adjust the adjusting block 19, an outer hexagonal screwing head is arranged on the outer end face of the adjusting block 19.

As shown in fig. 1, when wind force mainly comes from the front of the photovoltaic panel 0, that is, when the wind force is on the upper right side in the figure, the photovoltaic panel 0 transmits the stress to the fixing frame 3, the fixing frame 3 transmits the stress to the telescopic adjusting rod 2, and the telescopic adjusting rod 2 transmits the stress to the supporting seat 13, when the stress is too large, the supporting seat 13 can overcome the pressure limit from the limiting ball 17 and the ball pressing spring 18, so as to slide in the U-shaped groove 12, and further no longer form a support for the fixing frame 3, thereby completing the folding of the fixing frame 3 and the photovoltaic panel 0 thereon.

When wind mainly comes from the back of the photovoltaic panel 0, i.e. from the left lower side as shown in fig. 1, if the fixed-position hinge connection is adopted between the lower right end of the fixing frame 3 and the bottom frame 1, the supporting seat 13 is substantially subjected to a component force toward the left, and at this time, it cannot slide in the U-shaped groove 12 in a predetermined direction, so that the folding function cannot be realized. For this reason, the hinge connection between the fixing frame 3 and the underframe 1 of the present invention should be a manner capable of being unlocked by releasing the position, as shown in fig. 3 and 5, the lower end of the fixing frame 3 is provided with a cross shaft 14, the two side walls of the U-shaped groove 12 are provided with adjusting holes 15 matched with the cross shaft 14, the adjusting holes 15 extend along the length direction of the U-shaped groove 12, the cross shaft 14 penetrates through the adjusting holes 15, and a second pressure-limiting locking component connected with the cross shaft 14 is arranged in the U-shaped groove 12 at the position of the adjusting holes 15. In the normal use state, the transverse shaft 14 is locked by the second pressure-limiting locking assembly in the left end of the adjustment hole 15 as shown in fig. 1 and can be rotated. When the wind power is too large, the wind power can be synchronously pushed towards the right by the fixed frame 3, so that enough stroke space is reserved for tripping and unlocking the supporting seat 13, and the supporting seat 13 can move to the right in the U-shaped groove 12.

Regarding the specific structure of the second voltage limiting locking assembly, as shown in fig. 5, the second voltage limiting locking assembly of the present invention includes a supporting sleeve 20 fitted on the lateral shaft 14, and a partition 21 is disposed in the U-shaped groove 12 at one end of the supporting sleeve 20 far from the telescopic adjusting rod 2. The partition plate 21 is provided with a guide hole, the second pressure limiting locking assembly further comprises a guide rod 22, the guide rod 22 penetrates through the guide hole, one end of the guide rod 22 is fixedly connected with the support sleeve 20, and the other end of the guide rod 22 is provided with an end block 23. A sleeve supporting spring 24 is sleeved outside the guide rod 22 between the clapboard 21 and the supporting sleeve 20. The invention can arrange two groups of guide rods 22 and sleeve support springs 24 on the support sleeve 20 of each group of second pressure limiting locking assemblies, and one side of the clapboard 21 close to the end block 23 is provided with an extension pipe, so that the movement and guide stability of the support sleeve 20 is better.

When wind power mainly comes from the back of the photovoltaic panel 0, if the position of the transverse shaft 14 is fixed, the supporting seat 13 cannot be independently released and unlocked; the invention is provided with the first voltage-limiting locking component and the second voltage-limiting locking component at the same time, and the first voltage-limiting locking component and the second voltage-limiting locking component are synchronously tripped, so that the tripping of the first voltage-limiting locking component is realized. The stress of the invention is synchronously applied to the first pressure limiting locking component and the second pressure limiting locking component, on one hand, the elastic force of the first pressure limiting locking component from the ball pressing spring 17 needs to be overcome, on the other hand, the elastic force of the sleeve supporting spring 24 needs to be overcome by the cross shaft 14, so that the supporting seat 13 and the supporting sleeve 20 synchronously complete tripping, and after the supporting seat 13 is unlocked, the supporting seat can slide in the U-shaped groove 12, thereby realizing folding.

After the supporting seat 13 is released and slides, the main force for driving the telescopic adjusting rod 2 to fold comes from the wind power, the fixed frame 3 and the gravity of the photovoltaic panel 0, when the wind power mainly comes from the front surface of the photovoltaic panel 0, the downward pressure on the telescopic adjusting rod 2 is sufficient, and only the downward pressure slow drop of the fixed frame 3 needs to be considered, so that the fixed frame 3 is prevented from directly impacting the bottom frame 1. When wind power mainly comes from the back of the photovoltaic panel 0, the lower pressure of the telescopic adjusting rod 2 is driven to be insufficient, and at the moment, other force sources are often needed to push the telescopic adjusting rod 2 to press down, therefore, the invention can be better implemented by arranging a pneumatic slow-descending rod between the supporting sleeve 20 and the supporting seat 13, wherein the pneumatic slow-descending rod comprises an outer cylinder 25 and an inner rod 26, one end of the inner rod 26 is fixedly connected with the supporting seat 13, the other end of the inner rod extends into one end of the outer cylinder 25, and the end part of the inner rod is provided with a piston matched with the outer cylinder 25. The other end of the outer cylinder 25 is fixedly connected with the support sleeve 20. The wall of the outer cylinder 25 near one end of the support sleeve 20 is provided with a pumping and discharging valve 28, and the wall of the outer cylinder 25 far from one end of the support sleeve 20 is provided with an air inlet micropore 29.

When in use:

A. the photovoltaic panel 0 is mounted on the mount 3.

B. The length of the telescopic adjusting rod 2 is adjusted to enable the photovoltaic panel 0 on the fixing frame 3 to reach a set angle.

C. And pumping air in the outer cylinder 25 of the pneumatic slow-descending rod from the pumping and exhausting valve 28 by using an air pump, so that negative pressure is formed inside the outer cylinder 25 of the pneumatic slow-descending rod, and the installation is finished.

When wind power is too large, the supporting seat 13 is tripped, the pneumatic slow descending rod between the supporting seat 13 and the supporting sleeve 20 retracts to play a role of retracting to drive the supporting seat 13 to slide, but due to the limitation of the recent micropores 29, the instantaneous air inflow in the outer barrel 25 is small, and a slow retracting process is adopted between the inner rod 26 and the outer barrel 25, so that the phenomenon that the supporting seat 13 slides too fast to cause loss impact is avoided. When the device is used for the second time, the supporting seat 13 is adjusted in place and locked, then the gas in the outer cylinder 25 is pumped out from the pumping and exhausting valve 28, the use is convenient, the device can be repeatedly used, and meanwhile, the problem of elastic fatigue caused by using a spring part as a pull-back driving part is solved.