A ground double-column support device

Abstract

The present invention discloses a ground double-column support device, which relates to the technical field of photovoltaic support devices, and includes a base, a track and a lifting rod, wherein a track is welded in the middle of the top of the base, and a lifting rod is connected to the middle of the inner wall of the track, and the output end of the lifting rod is connected to a photovoltaic installation frame. When the ground double-column support device is in use, the photovoltaic installation frame is completely covered around and above by an unfolding mechanism, thereby improving the wind resistance of the support device, ensuring the stability and safety of the support device under extreme weather conditions, and there is no need to provide an additional power mechanism to drive the unfolding mechanism to work, and the unfolding mechanism is limited by a limiting mechanism to prevent it from opening at will after unfolding, and automatically opening after the typhoon stops so that the photovoltaic panel appears to work normally, and rainwater is diverted by an auxiliary mechanism, and when the first protective plate and the second protective plate are opened, the sundries at the connection will not contact the photovoltaic installation frame.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic support devices, and in particular to a ground double-column support device. Background Art

[0002] Photovoltaic is a new form of power generation that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. A ground support device refers to a device used to support or fix an object to the ground. This device usually has high plasticity and adaptability, and can have different shapes, materials and structures to meet the needs of different fields. The double-column ground photovoltaic bracket is a structural form widely used in ground photovoltaic power stations. It is mainly composed of two main columns and connecting parts. Auxiliary structural parts such as beams and diagonal braces form a stable support system to fix solar photovoltaic panels, ensuring that the photovoltaic panels can effectively capture sunlight and convert it into electrical energy.

[0003] According to patent number CN205490341U, the double-column ground solar bracket includes a frame, and the bottom of the frame is fixed to the inclined beam by means of a buckle, a middle pressure block and a side pressure block. This double-column ground solar bracket fixes the frame to the inclined beam by means of a middle pressure block, a side pressure block and a buckle, and has a high connection strength and is not easy to loosen. The frame can be quickly installed after using the middle pressure block, the side pressure block and the buckle, thereby improving the installation efficiency. When the tilt angle of the frame needs to be adjusted, it can be achieved by simply controlling the lifting rod to lift, thereby making the solar bracket applicable to a wider range of applications.

[0004] However, during the use of the above-mentioned patent, the frame is supported only by columns and lifting columns. Although the connection strength of this support method is higher than that of a single-column photovoltaic bracket, its wind resistance is still relatively poor. Once encountering extreme outdoor weather, especially typhoon conditions, it is easy to cause the photovoltaic support device to loosen, thereby causing the photovoltaic components to fall off and be damaged, and even causing the photovoltaic components to collide with pedestrians. As a result, the stability and safety of the photovoltaic bracket cannot be guaranteed under extreme weather conditions, thereby affecting the use of the ground support device. Summary of the invention

[0005] The purpose of the present invention is to provide a ground double-column support device to solve the problems raised by the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a ground double-column support device, comprising a base, a track and a lifting rod, wherein a track is welded in the middle of the top of the base, and a lifting rod is butted in the middle of the inner wall of the track, and a photovoltaic installation frame is connected to the output end of the lifting rod, a column is rotatably connected to one side of the bottom end of the photovoltaic installation frame, and the bottom end of the column is welded to the base, an unfolding mechanism is arranged on the outer wall of the photovoltaic installation frame, and the unfolding mechanism comprises a support seat welded to the base, an inner guide plate is rotatably connected to the top of the support seat through a bearing seat, and the inner guide plate Sector gears are connected to the outer wall of the plate on both sides, and a tooth plate is meshed and connected at the bottom end of the sector gear, and a storage cavity is opened in the middle of the tooth plate, and a transmission plate is rotatably connected to the outer wall of the tooth plate on both sides, and a lifting seat is rotatably connected to the top of the transmission plate, and a sliding column is slidably connected to the inside of the lifting seat close to the inner guide plate, and the bottom end of the sliding column is welded to the base, and guide rods are slidably connected to the inner sides of the lifting seat through limiting grooves, and a guide spring is sleeved on the outer wall of the guide rod, and a guide seat is welded on the side of the guide rod away from the lifting seat, and an auxiliary wheel is docked on one side of the outer wall of the guide seat.

[0007] Preferably, a first protective plate is slidably connected to one side of the base, and a second protective plate is slidably connected to the other side of the base. A transmission pin is slidably connected to the top of the lifting seat, and a transmission ring plate is welded to one side of the outer wall of the transmission pin.

[0008] Preferably, fixing pins are welded to the top of the first protective plate and the second protective plate, and a closing plate is welded to one side of the outer wall of the fixing pin, and the closing plates are staggered.

[0009] Preferably, a support column is rotatably connected to the middle of the closing plate, and the bottom end of the support column is welded to the base. The outer wall of the closing plate is slidably connected to a limit pin through a guide cavity, and one side of the outer wall of the limit pin is welded to the middle of the outer wall of the base.

[0010] Preferably, the lifting seat, the guide rod, the guide spring and the guide seat form an elastic telescopic mechanism, and the closing plate is semicircular.

[0011] Preferably, a limiting mechanism is provided on the outer wall of the closing plate (617), and the limiting mechanism (7) includes a fixed seat (701) welded to the base (1), and the top of the fixed seat is connected to an outer guide plate via a rotating column, and the outer walls of the outer guide plate are connected to a transmission seat on both sides via a rotating column.

[0012] Preferably, the bottom end of the transmission seat is slidably connected to a rotating plate via a guide groove, and a fixed plate is welded to the bottom end of the transmission seat, the outer wall of the fixed plate is slidably connected to a mounting seat, and the bottom end of the mounting seat is welded to the base.

[0013] Preferably, the bottom end of the fixed plate is internally slidably connected to a limiting column, and a reset spring is sleeved on the middle of the outer wall of the limiting column, and both sides of the outer wall of the limiting column are welded to the mounting seat, and a fixing hole corresponding to the fixed plate is opened at the bottom end of the closing plate.

[0014] Preferably, the outer wall of the second protective plate is provided with an auxiliary mechanism, and the auxiliary mechanism includes a rotating seat connected to the first protective plate, and a buffer plate is connected inside the rotating seat, and a buffer spring A is fixedly connected to the bottom end of the buffer plate.

[0015] Preferably, a buffer spring B is connected to the top of the outer wall of the second protective plate, and an auxiliary plate is fixedly connected to the top of the buffer spring B, and the buffer springs B are evenly spaced and distributed on the auxiliary plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: when the ground double-column support device is in use, the photovoltaic installation frame is completely covered on all sides and on the top through the unfolding mechanism, thereby improving the wind resistance of the support device and ensuring the stability and safety of the support device under extreme weather conditions, and there is no need to provide an additional power mechanism to drive the unfolding mechanism to work. The unfolding mechanism is limited by a limiting mechanism to prevent it from being opened at will after being unfolded, and it automatically opens after the typhoon stops so that the photovoltaic panel appears to be working normally. Rainwater is diverted through an auxiliary mechanism, and when the first protective plate and the second protective plate are opened, debris at their connection will not come into contact with the photovoltaic installation frame.

[0017] 1. In the process of assisting the construction of the ground photovoltaic power station system by the double-column support device, when encountering typhoon weather and strong wind blowing from the left side, the strong wind blows the inner guide plate to rotate, and then the inner guide plate drives the tooth plate to move to the left through the fan gear. At this time, the angle between the transmission plate and the tooth plate changes, and then the lifting seat moves up to generate thrust on the transmission pin, and then the transmission pin drives the first protective plate and the second protective plate to move through the transmission ring plate until the first protective plate and the top of the second protective plate fit each other, and then the front and rear sides and the top of the photovoltaic installation frame are covered, and at this time the fixing pin will generate tension on the closing plate, so that the closing plate rotates to a vertical state, and then the left and right sides of the photovoltaic installation frame are covered, so that the surroundings and the top of the photovoltaic installation frame are completely covered, thereby improving the wind resistance of the support device, ensuring the stability and safety of the support device under extreme weather conditions, and preventing the loosening and falling off of the components of the support device due to typhoons, and there is no need to provide an additional power mechanism to drive the unfolding mechanism to work;

[0018] 2. During the construction of the ground photovoltaic power station system assisted by the double-column support device, when a strong wind blows from the left, the outer guide plate drives the rotating plate to rotate clockwise through the rotating column, thereby generating a thrust on the transmission seat, so that the transmission seat drives the fixed plate to dock with the bottom end of the closed plate, and then limits the closed plate to prevent it from opening at will after it is unfolded. When the typhoon stops, the closed plate, the first protective plate and the second protective plate move downward and open under the action of their own gravity, so that the photovoltaic panel can work normally;

[0019] 3. During the construction of the ground photovoltaic power station system assisted by a double-column support device, when the first protective plate moves, the buffer plate is driven to move together through the rotating seat, and then the connection between the first protective plate and the second protective plate is covered by the buffer plate. When encountering typhoon and rainy weather, the rainwater is diverted through the buffer plate to prevent the rainwater from entering the base through the gap at the connection. When the first protective plate and the second protective plate are opened, the debris at the connection will not come into contact with the photovoltaic installation frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a left-side stereoscopic structural schematic diagram of the present invention;

[0022] Figure 3 It is a schematic diagram of the internal three-dimensional structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the left-side stereoscopic cutaway structure of the present invention;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the unfolding mechanism of the present invention;

[0025] Figure 6 It is a schematic diagram of the internal three-dimensional cutaway structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the three-dimensional structure of the photovoltaic installation frame of the present invention;

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the transmission ring plate of the present invention;

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the closing plate of the present invention;

[0029] Fig.10 It is a schematic diagram of a three-dimensional cross-section structure of a lifting seat in a top view of the present invention;

[0030] Fig.11 It is a schematic diagram of the three-dimensional cutaway structure of the fixing seat of the present invention;

[0031] Fig.12 It is a schematic diagram of the three-dimensional structure of the outer guide plate of the present invention;

[0032] Fig.13 It is a schematic diagram of the three-dimensional structure of the limiting mechanism of the present invention;

[0033] Fig.14 It is a left-side structural schematic diagram of the transmission ring plate of the present invention;

[0034] Fig.15 This is a schematic diagram of the three-dimensional structure of the buffer plate of the present invention;

[0035] Fig.16 It is a schematic diagram of the three-dimensional structure of the auxiliary mechanism of the present invention.

[0036] In the figure: 1, base; 2, track; 3, lifting rod; 4, photovoltaic installation frame; 5, column; 6, unfolding mechanism; 601, inner guide plate; 602, sector gear; 603, support seat; 604, tooth plate; 605, transmission plate; 606, lifting seat; 607, slide column; 608, guide rod; 609, guide spring; 610, guide seat; 611, auxiliary wheel; 612, transmission pin; 613, transmission ring plate; 614, first protective plate; 615, first Two protective plates; 616, fixing pin; 617, closing plate; 618, supporting column; 619, limiting pin; 7, limiting mechanism; 701, fixing seat; 702, outer guide plate; 703, rotating plate; 704, transmission seat; 705, fixing plate; 706, mounting seat; 707, limiting column; 708, reset spring; 8, auxiliary mechanism; 801, rotating seat; 802, buffer plate; 803, buffer spring A; 804, buffer spring B; 805, auxiliary plate. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1-Figure 10 , Fig.12 and Fig.14The present invention provides a technical solution: a ground double-column support device, comprising a base 1, a track 2 and a lifting rod 3, the track 2 is welded to the middle of the top of the base 1, and the lifting rod 3 is connected to the middle of the inner wall of the track 2, and the output end of the lifting rod 3 is connected to a photovoltaic installation frame 4, one side of the bottom end of the photovoltaic installation frame 4 is rotatably connected to a column 5, and the bottom end of the column 5 is welded to the base 1, the outer wall of the photovoltaic installation frame 4 is provided with an unfolding mechanism 6, and the unfolding mechanism 6 includes a support seat 603 welded to the base 1, the top of the support seat 603 is rotatably connected to an inner guide plate 601 through a bearing seat, and the inner guide plate 601 is connected to the outer wall on both sides. A sector gear 602 is connected, the bottom end of the sector gear 602 is meshedly connected with a tooth plate 604, and a storage cavity is opened in the middle of the tooth plate 604, and transmission plates 605 are rotatably connected to the outer walls of the tooth plate 604 on both sides, and a lifting seat 606 is rotatably connected to the top of the transmission plate 605, and a sliding column 607 is slidably connected to the inside of the lifting seat 606 close to the inner guide plate 601, and the bottom end of the sliding column 607 is welded to the base 1, and guide rods 608 are slidably connected to the inside of the lifting seat 606 through limiting grooves on both sides, and a guide spring 609 is sleeved on the outer wall of the guide rod 608, and the side of the guide rod 608 away from the lifting seat 606 is welded A guide seat 610 is connected, and an auxiliary wheel 611 is connected to one side of the outer wall of the guide seat 610; a first protective plate 614 is slidably connected to one side of the inner part of the base 1, and a second protective plate 615 is slidably connected to the other side of the inner part of the base 1, and a transmission pin 612 is slidably connected to the top of the lifting seat 606, and a transmission ring plate 613 is welded to one side of the outer wall of the transmission pin 612; a fixing pin 616 is welded to the top of the first protective plate 614 and the second protective plate 615, and a closing plate 617 is welded to one side of the outer wall of the fixing pin 616, and the closing plates 617 are staggered; a support column 618 is rotatably connected to the middle of the closing plate 617, and the support column 618 is rotatably connected to the middle part of the closing plate 617. The bottom end of 18 is welded to the base 1, the outer wall of the closing plate 617 is slidably connected to the limit pin 619 through a guide cavity, and one side of the outer wall of the limit pin 619 is welded to the middle part of the outer wall of the base 1; the lifting seat 606, the guide rod 608, the guide spring 609 and the guide seat 610 constitute an elastic telescopic mechanism, and the closing plate 617 is semicircular; the tooth plate 604 and the track 2 are slidably connected, the outer wall of the auxiliary wheel 611 and the inner wall of the base 1 are rollingly connected, the first protective plate 614 and the second protective plate 615 are both connected to the top of the transmission ring plate 613, and the outer wall of the closing plate 617 is provided with a guide cavity corresponding to the limit pin 619.

[0039] During specific implementation, during the construction of the ground photovoltaic power station system assisted by the double-column support device, when a strong wind blows from the left side during typhoon weather, the strong wind first blows the inner guide plate 601 on the support seat 603 to rotate. Since the inner guide plate 601 is connected to the fan gear 602, the rotation of the inner guide plate 601 drives the fan gear 602 to rotate clockwise. Since the fan gear 602 and the tooth plate 604 are meshingly connected, the fan gear 602 rotates clockwise to move the tooth plate 604 to the left. Since the tooth plate 604 and the transmission plate 605 are rotationally connected, the movement of the tooth plate 604 drives the transmission plate 605 to rotate. At this time, the angle between the transmission plate 605 and the tooth plate 604 changes, thereby generating an upward thrust on the lifting seat 606 on the left, so that the lifting seat 606 moves upward along the sliding column 607.

[0040] Then the lifting seat 606 moves upward to generate a thrust to the transmission pin 612 to move upward. Since the transmission pin 612 is welded to the transmission ring plate 613, the movement of the transmission pin 612 drives the transmission ring plate 613 to move together. Since the top of the transmission ring plate 613 is connected to the first protective plate 614 and the second protective plate 615, the transmission ring plate 613 moves upward to drive the first protective plate 614 and the second protective plate 615 to move together, and then the first protective plate 614 and the second protective plate 615 slide along the base 1. At this time, the movement of the first protective plate 614 and the second protective plate 615 rotates with the support column 618 as the axis.

[0041] Because the lifting seat 606 is internally slidably connected to the guide rod 608, and one side of the outer wall of the guide rod 608 is connected to the guide seat 610, when the lifting seat 606 moves upward, the guide spring 609 is reset to generate elastic force, and then the guide seat 610 drives the auxiliary wheel 611 to move away from the lifting seat 606; when the lifting seat 606 moves downward, the guide seat 610 squeezes the guide spring 609 to cause it to deform, so that the outer wall of the auxiliary wheel 611 is always in contact with the inner wall of the base 1, and at this time, the friction is reduced by the auxiliary wheel 611, so that the lifting seat 606 is always located below the transmission pin 612;

[0042] Until the top of the first protective plate 614 and the second protective plate 615 fit each other, and then cover the front and rear sides and the top of the photovoltaic installation frame 4. Because the first protective plate 614 and the second protective plate 615 are welded with a fixing pin 616 on one side of the top, the first protective plate 614 and the second protective plate 615 will drive the fixing pin 616 to move together when they move, and because the fixing pin 616 is welded to the closing plate 617, the movement of the fixing pin 616 will generate a pulling force on the closing plate 617, and because the middle part of the closing plate 617 is rotatably connected to the support column 618, the closing plate 617 rotates along the support column 618 at this time, and because the closing plate 617 is internally slidably connected to the limit pin 619, the movement of the closing plate 617 is also guided by the limit pin 619;

[0043] Until the closing plate 617 rotates to a vertical state, thereby covering the left and right sides of the photovoltaic installation frame 4, when a typhoon blows from the left side, the first protective plate 614 and the second protective plate 615 are deployed through the lifting seat 606 on the left side, and when a typhoon blows from the right side, the first protective plate 614 and the second protective plate 615 are deployed through the lifting seat 606 on the right side, and the deployment mechanism 6 is driven to work by the wind force in typhoon weather, without the need to provide an additional power mechanism to drive the deployment mechanism 6 to work;

[0044] Therefore, when encountering typhoon weather, the photovoltaic installation frame 4 can be completely covered on all sides and on the top by the unfolding mechanism 6, thereby improving the wind resistance of the support device, ensuring the stability and safety of the support device under extreme weather conditions, and then preventing the components of the support device from loosening and falling off due to the typhoon, and finally preventing the components from falling off and colliding with pedestrians.

[0045] See also Figure 1-Figure 3 , Figure 6 , Figure 8 , Figure 11-13 It can be seen that the outer wall of the closing plate 617 is provided with a limiting mechanism 7, and the limiting mechanism 7 includes a fixed seat 701 welded to the base 1, and the top of the fixed seat 701 is connected to the outer guide plate 702 through a rotating column, and the outer walls of the outer guide plate 702 are connected to the transmission seat 704 through rotating columns; the bottom end of the transmission seat 704 is slidably connected to the rotating plate 703 through a guide groove, and the bottom end of the transmission seat 704 is welded to the fixed plate 705, the outer wall of the fixed plate 705 is slidably connected to the mounting seat 706, and the bottom end of the mounting seat 706 is welded to the base 1; the bottom of the fixed plate 705 A limiting column 707 is slidably connected to the inner end, and a reset spring 708 is sleeved on the middle part of the outer wall of the limiting column 707, and the two sides of the outer wall of the limiting column 707 are welded to the mounting seat 706, and a fixing hole corresponding to the fixed plate 705 is opened at the bottom of the closing plate 617; a limiting groove corresponding to the fixed plate 705 is opened at the top of the mounting seat 706, and an elastic telescopic mechanism is formed between the fixed plate 705, the limiting column 707 and the reset spring 708, a limiting groove corresponding to the transmission seat 704 is opened at the bottom of the mounting seat 706, and a rotating column is rotatably connected inside the top of the fixed seat 701.

[0046] In specific implementation, during the construction of the ground photovoltaic power station system assisted by the double-column support device, after the unfolding mechanism 6 is unfolded, in order to prevent the inner guide plate 601 from opening due to no longer rotating, and because the fixed seat 701 is arranged on the outside of the unfolding mechanism 6, when a typhoon blows from the left, the outer guide plate 702 at the top of the fixed seat 701 will also rotate. At this time, the outer guide plate 702 drives the rotating plate 703 to rotate clockwise through the rotating column, and the rotating plate 703 is connected to the transmission seat 704 through the limit groove;

[0047] The rotation of the rotating plate 703 generates a thrust on the transmission seat 704, so that the transmission seat 704 drives the fixed plate 705 to move to the left. Since a limiting groove corresponding to the transmission seat 704 is provided at the bottom of the mounting seat 706, the mounting seat 706 will not hinder the movement of the fixed plate 705. Moreover, since the fixed plate 705 is internally slidably connected to the limiting column 707, the movement of the fixed plate 705 is guided by the limiting column 707. At this time, when the fixed plate 705 on the right side moves, the reset spring 708 is squeezed, which causes the reset spring 708 to deform until the fixed plate 705 on the right side is docked with the fixing hole at the bottom end of the closing plate 617, thereby limiting the closing plate 617, the first protective plate 614 and the second protective plate 615 to prevent them from opening at will after being unfolded.

[0048] When strong wind blows from the right side, the fixed plate 705 on the left side will dock with the fixing hole at the bottom end of the closing plate 617. Then, when the typhoon stops, the reset spring 708 resets to generate elastic force to return the fixed plate 705 to its original position, thereby disconnecting the fixed plate 705 from the closing plate 617, thereby canceling the limit on the closing plate 617, the first protective plate 614 and the second protective plate 615. At this time, the closing plate 617, the first protective plate 614 and the second protective plate 615 move downward under the action of their own gravity, so that when the typhoon stops, the closing plate 617, the first protective plate 614 and the second protective plate 615 are opened, thereby allowing the photovoltaic panel to operate normally.

[0049] When the wind force reaches level 6, the wind speed is roughly between 10.8 and 13.8 m / s, which is equivalent to a thrust of 0.1 to 0.2 tons per square meter. Such wind force can only make the small tree sway, and its thrust cannot drive the inner guide plate 601 and the outer guide plate 702 to rotate. Therefore, when the wind force is level 6 and below, the thrust generated by the strong wind cannot completely squeeze the return spring 708 to deform it, thereby failing to completely drive the unfolding mechanism 6 and the limiting mechanism 7 to work;

[0050] When the wind force reaches level 8, the wind speed is roughly between 17.2 and 20.7 m / s. Assuming that the plane area of ​​the inner guide plate 601 perpendicular to the airflow direction is approximately 0.595 square meters, using the Bernoulli equation and wind pressure formula, we can calculate that the wind pressure of level 8 wind is approximately 250 N / m 2 Therefore, the thrust generated by the 8-force wind is about 250N / m 2 Multiply by 0.595m 2 , i.e. 148.75 Newtons;

[0051] When the wind force reaches level 10, the wind speed is roughly between 24.5 and 28.4 m / s. At this time, according to the wind pressure formula: P = 0.5 × ρ × v^2

[0052] Where ρ is the air density (usually taken as 1.225 kg / m 3 ), v is the wind speed (in meters per second);

[0053] For level 10 wind, we take the wind speed as 26.5 m / s (this is the middle value of the level 10 wind speed range), substitute it into the above formula, and we get:

[0054] P=0.5×1.225×26.5^2≈416.6N / m 2

[0055] This means that under the action of a force 10 wind, each square meter of area will be subjected to a thrust of approximately 416.6 Newtons. Therefore, only when encountering a wind force of force 8 or above, the deployment mechanism 6 and the limiting mechanism 7 will be fully deployed and work under the strong wind thrust.

[0056] See also Figure 1 , Figure 2 , Figure 4 , Figure 7 , Fig.14 , Fig.15 and Fig.16 It can be seen that an auxiliary mechanism 8 is provided on the outer wall of the second protective plate 615, and the auxiliary mechanism 8 includes a rotating seat 801 connected to the first protective plate 614, and a buffer plate 802 is connected inside the rotating seat 801, and a buffer spring A803 is fixedly connected to the bottom end of the buffer plate 802; a buffer spring B804 is connected to the top end of the outer wall of the second protective plate 615, and an auxiliary plate 805 is fixedly connected to the top end of the buffer spring B804, and the buffer springs B804 are evenly distributed on the auxiliary plate 805; the bottom end of the buffer spring A803 is connected to the first protective plate 614, and the buffer springs A803 are evenly distributed on the first protective plate 614, the auxiliary plate 805 is located below the buffer plate 802, and the buffer plate 802 and the rotating seat 801 are rotatably connected.

[0057] In specific implementation, in the process of assisting the construction of the ground photovoltaic power station system by means of a double-column support device, in order to prevent the debris at the connection between the first protective plate 614 and the second protective plate 615 from entering the interior of the base 1 when they are opened, a rotating seat 801 is welded to the top of the first protective plate 614, and the first protective plate 614 drives the rotating seat 801 to move together when it moves, and then when the first protective plate 614 and the top of the second protective plate 615 are fitted and unfolded, the buffer plate 802 is located above them, and then the connection between the first protective plate 614 and the second protective plate 615 is covered, so that when encountering typhoon and rainy weather, rainwater is diverted through the buffer plate 802 to prevent rainwater from entering the interior of the base 1 through the gap at the connection;

[0058] When debris flies from above, it first collides with the buffer plate 802, and then the buffer plate 802 rotates along the rotating seat 801, and then the buffer plate 802 rotates to squeeze the auxiliary plate 805, which causes the buffer spring A803 and the buffer spring B804 to deform, and then the buffer spring A803 and the buffer spring B804 reset, and then the elastic force and the impact force offset each other, thereby buffering the connection between the first protective plate 614 and the second protective plate 615, and when the first protective plate 614 and the second protective plate 615 are opened, the debris at the connection will not come into contact with the photovoltaic mounting frame 4.

[0059] In summary, when the ground double-column support device is used, the base 1 is first moved to the construction location of the ground photovoltaic power station system, and then the photovoltaic panel is docked inside the photovoltaic installation frame 4. After that, the photovoltaic installation frame 4 is docked with the track 2 through the lifting rod 3 and the column 5, so that the photovoltaic installation frame 4 is connected to the base 1, and the double-column design provides stable support for the photovoltaic assembly. This is a prior art and will not be elaborated on here. The photovoltaic installation frame 4 is completely covered on all sides and above by the unfolding mechanism 6, thereby improving the wind resistance of the support device and ensuring the stability and safety of the support device under extreme weather conditions. There is no need to provide an additional power mechanism to drive the unfolding mechanism 6 to work. The unfolding mechanism 6 is limited by the limiting mechanism 7 to prevent it from opening at will after unfolding, and automatically opening when the typhoon stops so that the photovoltaic panel can work normally. The rainwater is diverted by the auxiliary mechanism 8, and the debris at the connection between the first protective plate 614 and the second protective plate 615 is prevented from contacting the photovoltaic installation frame 4 when they are opened. The content not described in detail in this description belongs to the prior art known to professional and technical personnel in this field.

[0060] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ground double-column support device, comprising a base (1), a track (2) and a lifting rod (3), characterized in that: A track (2) is welded to the middle of the top of the base (1), and a lifting rod (3) is connected to the middle of the inner wall of the track (2), and the output end of the lifting rod (3) is connected to a photovoltaic installation frame (4), and a column (5) is rotatably connected to one side of the bottom of the photovoltaic installation frame (4), and the bottom end of the column (5) is welded to the base (1), and an unfolding mechanism (6) is arranged on the outer wall of the photovoltaic installation frame (4), and the unfolding mechanism (6) includes a support seat (603) welded to the base (1), and the top of the support seat (603) is rotatably connected to an inner guide plate (601) through a bearing seat, and the outer walls of the inner guide plate (601) are connected to fan-shaped gears (602) on both sides, and the bottom end of the fan-shaped gear (602) is meshingly connected to a toothed plate (604), and A storage cavity is provided in the middle of the tooth plate (604), and transmission plates (605) are rotatably connected to the two sides of the outer wall of the tooth plate (604), and a lifting seat (606) is rotatably connected to the top of the transmission plate (605), and a sliding column (607) is slidably connected to the inside of the lifting seat (606) on the side close to the inner guide plate (601), and the bottom end of the sliding column (607) is welded to the base (1), and guide rods (608) are slidably connected to the two sides of the lifting seat (606) through limiting grooves, and the outer wall of the guide rod (608) is sleeved with a guide spring (609), and a guide seat (610) is welded to the side of the guide rod (608) away from the lifting seat (606), and an auxiliary wheel (611) is connected to one side of the outer wall of the guide seat (610).

2. A ground double-column support device according to claim 1, characterized in that: A first protective plate (614) is slidably connected to one side of the base (1), and a second protective plate (615) is slidably connected to the other side of the base (1). A transmission pin (612) is slidably connected to the top of the lifting seat (606), and a transmission ring plate (613) is welded to one side of the outer wall of the transmission pin (612).

3. A ground double-column support device according to claim 2, characterized in that: A fixing pin (616) is welded to the top of each of the first protection plate (614) and the second protection plate (615), and a closing plate (617) is welded to one side of the outer wall of the fixing pin (616), and the closing plates (617) are staggered.

4. A ground double-column support device according to claim 3, characterized in that: The middle part of the closing plate (617) is rotatably connected to a support column (618), and the bottom end of the support column (618) is welded to the base (1). The outer wall of the closing plate (617) is slidably connected to a limit pin (619) via a guide cavity, and one side of the outer wall of the limit pin (619) is welded to the middle part of the outer wall of the base (1).

5. A ground double-column support device according to claim 4, characterized in that: The lifting seat (606), the guide rod (608), the guide spring (609) and the guide seat (610) form an elastic telescopic mechanism, and the closing plate (617) is semicircular.

6. A ground double-column support device according to claim 5, characterized in that: The outer wall of the closing plate (617) is provided with a limiting mechanism (7), and the limiting mechanism (7) includes a fixing seat (701) welded to the base (1), and the top of the fixing seat (701) is connected to an outer guide plate (702) via a rotating column, and the outer walls of the outer guide plate (702) are connected to transmission seats (704) on both sides via rotating columns.

7. A ground double-column support device according to claim 6, characterized in that: The bottom end of the transmission seat (704) is slidably connected to a rotating plate (703) via a guide groove, and a fixing plate (705) is welded to the bottom end of the transmission seat (704). The outer wall of the fixing plate (705) is slidably connected to a mounting seat (706), and the bottom end of the mounting seat (706) is welded to the base (1).

8. A ground double-column support device according to claim 7, characterized in that: The bottom end of the fixing plate (705) is internally slidably connected to a limiting column (707), and a return spring (708) is sleeved in the middle of the outer wall of the limiting column (707), and both sides of the outer wall of the limiting column (707) are welded to the mounting seat (706), and a fixing hole corresponding to the fixing plate (705) is opened at the bottom end of the closing plate (617).

9. A ground double-column support device according to claim 2, characterized in that: The outer wall of the second protective plate (615) is provided with an auxiliary mechanism (8), and the auxiliary mechanism (8) includes a rotating seat (801) connected to the first protective plate (614), and a buffer plate (802) is connected inside the rotating seat (801), and a buffer spring A (803) is fixedly connected to the bottom end of the buffer plate (802).

10. A ground double-column support device according to claim 9, characterized in that: The top end of the outer wall of the second protective plate (615) is connected to a buffer spring B (804), and the top end of the buffer spring B (804) is fixedly connected to an auxiliary plate (805), and the buffer springs B (804) are evenly spaced and distributed on the auxiliary plate (805).

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