Flexible tracking photovoltaic support based on damping device

Abstract

The invention discloses a flexible tracking photovoltaic support which comprises a bottom frame, a triangular frame, a hydraulic cylinder and a damping device with a fixing structure, the triangular frame is in an isosceles triangle shape or an equilateral triangle shape, one end of the triangular frame is installed on the bottom frame in a hinged mode, and one end of the damping device with the fixing structure is matched with the bottom frame in a hinged mode. One end of each damping device is provided with a fixing structure, the other end of each damping device is matched with the corresponding triangular frame in a hinged mode, one end of each hydraulic cylinder is matched with the bottom frame in a hinged mode, the other end of each hydraulic cylinder is matched with the corresponding triangular frame in a hinged mode, and each triangular frame is provided with one damping device with a fixing structure and one hydraulic cylinder. Compared with the prior art, the photovoltaic support has the advantages that the photovoltaic support is adjusted and locked in a hydraulic electric control mode by combining the practical tripod and the damping device with the fixing mechanism, adjustment and control are convenient, and reliability is high.

Description

Technical Field

[0001] The invention relates to the field of photovoltaics, and in particular to a flexible tracking photovoltaic bracket. Background Art

[0002] Flexible photovoltaic tracking brackets are currently commonly used in photovoltaic stations. Patent publication CN107302340A provides a dual-axis flexible photovoltaic tracking bracket. However, this type of photovoltaic bracket has a complex structure and requires gears and gear rings during transmission, requiring high assembly precision and is very inconvenient to use. Summary of the invention

[0003] In view of the above problems, the present invention proposes a flexible tracking photovoltaic bracket.

[0004] The technical solution adopted by the present invention is as follows: A flexible tracking photovoltaic bracket comprises a base frame, a tripod, a hydraulic cylinder and a damping device with a fixed structure, wherein the tripod is in the shape of an isosceles triangle or an equilateral triangle, one end of the tripod is hingedly mounted on the base frame, one end of the damping device with a fixed structure is hingedly matched with the base frame, the other end of the damping device with a fixed structure is hingedly matched with the tripod, one end of the hydraulic cylinder is hingedly matched with the base frame, the other end of the hydraulic cylinder is hingedly matched with the tripod, and each tripod is provided with a damping device with a fixed structure and a hydraulic cylinder.

[0005] In this kind of flexible tracking photovoltaic bracket, the damping device with a fixing mechanism has the function of telescopic locking. Its detailed structure and working principle process can be found in the patent announcement document CN211875013U. This device has the function of telescopic in the unlocked state and has the function of fixing in the locked state, which is equivalent to a fixed pole. Therefore, this kind of photovoltaic bracket adopts the above device to adjust the position of the rotating tripod, and the rotating tripod can be stably adjusted. After adjusting to the predetermined position, the above damping device enters the locked state.

[0006] In summary, this photovoltaic bracket realizes the adjustment and locking of the photovoltaic bracket by hydraulic electric control by combining a practical tripod and a damping device with a fixing mechanism, and has convenient adjustment and control and high reliability.

[0007] Optionally, it also includes suspension cables and photovoltaic panels, two adjacent parallel photovoltaic brackets are connected by the suspension cables, two parallel suspension cables are arranged on the same tripod, and the photovoltaic panels are installed on the suspension cables.

[0008] The suspension cable is fixed on the tripod to form a stable installation structure for the installation of photovoltaic panels. The specific suspension cable can be a steel cable or a cable made of other materials (such as carbon fiber).

[0009] Optionally, it also includes a hydraulic station and a control box, wherein the control box is connected to the damping device with a fixed structure through a cable, and the hydraulic station is connected to the hydraulic cylinder through an oil pipe.

[0010] The function of the hydraulic station and the control box is to control the damping device with a fixed structure and the hydraulic cylinder.

[0011] Optionally, the base frame includes a column and a crossbeam, the crossbeam is fixed on the column, the column is perpendicular to the crossbeam, and the tripod and the damping device with a fixed structure are hingedly coupled to the crossbeam.

[0012] The specific hydraulic cylinder is also coordinated with the measuring articulation.

[0013] Optionally, there are two upright posts, which are respectively fixed at two ends of the beam and are parallel to each other.

[0014] Optionally, the crossbeam is a metal crossbeam.

[0015] Optionally, the column is a metal column.

[0016] Optionally, the length of the column is greater than the length of the beam.

[0017] The beneficial effects of the present invention are as follows: by combining a practical tripod and a damping device with a fixing mechanism, the photovoltaic bracket can be adjusted and locked by hydraulic electric control, and the adjustment and control are convenient and the reliability is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of a flexible tracking photovoltaic bracket. Figure 2 This is a schematic diagram of the structure of the suspension cable. Figure 3 It is a schematic diagram of the matching relationship between the suspension cable and the connecting sleeve. Figure 4 It is a schematic diagram of the matching relationship between the connecting sleeve and the splint. The reference numerals in the figure are: 1. column; 2. beam; 3. damping device with fixed structure; 4. tripod; 5. suspension cable; 501. steel cable; 502. plastic soft cover; 6. photovoltaic panel; 7. control box; 8. hydraulic station; 9. hydraulic cylinder; 10. clamping block; 1001. elastic clip; 11. mounting sleeve, 1101. gear surface; 12. gasket tube; 1201. leakage hole. DETAILED DESCRIPTION

[0020] The present invention is described in detail below in conjunction with the accompanying drawings.

[0021] As attached Figure 1 As shown, a flexible tracking photovoltaic bracket includes a base frame, a tripod 4, a hydraulic cylinder and a damping device 3 with a fixed structure. The tripod 4 is in the shape of an isosceles triangle or an equilateral triangle. One end of the tripod 4 is hingedly mounted on the base frame, one end of the damping device 3 with a fixed structure is hingedly matched with the base frame, the other end of the damping device 3 with a fixed structure is hingedly matched with the tripod 4, one end of the hydraulic cylinder is hingedly matched with the base frame, the other end of the hydraulic cylinder is hingedly matched with the tripod 4, and each tripod 4 is provided with a damping device 3 with a fixed structure and a hydraulic cylinder.

[0022] In this kind of flexible tracking photovoltaic bracket, the damping device with a fixing mechanism has the function of telescopic locking. Its detailed structure and working principle process can be found in the patent announcement document CN211875013U. This device has the function of telescopic in the unlocked state and has the function of fixing in the locked state, which is equivalent to a fixed pole. Therefore, this kind of photovoltaic bracket adopts the above-mentioned device to adjust the position of the rotating tripod 4, and the rotating tripod 4 can be stably adjusted. After adjusting to the predetermined position, the above-mentioned damping device enters the locked state.

[0023] In summary, this photovoltaic bracket realizes the adjustment and locking of the photovoltaic bracket by hydraulic electric control by combining the practical tripod 4 and the damping device with a fixing mechanism, and the adjustment and control are convenient and the reliability is strong.

[0024] As attached Figure 1 As shown, it also includes a suspension cable 5 and a photovoltaic panel 6 . Two adjacent parallel photovoltaic brackets are connected by the suspension cable 5 . Two parallel suspension cables 5 are arranged on the same tripod 4 , and the photovoltaic panel 6 is installed on the suspension cable 5 .

[0025] The suspension cable 5 is fixed on the tripod 4 to form a stable installation structure so as to facilitate the installation of the photovoltaic panel 6. The suspension cable 5 can be a steel cable or other forms of cables.

[0026] For the specific structure of the suspension cable, please refer to the attached Figure 2As shown, the suspension cable 5 includes a steel cable 501 and a plastic soft cover 502. The inner wall of the plastic cover 502 is close to the steel cable 501, and a spiral groove is provided on the outer wall of the plastic soft cover 502. In this suspension cable 5, the steel cable 501 mainly plays the role of main support, and the plastic soft cover 502 is sleeved on the steel cable 501. The plastic soft cover 502 is used to protect the steel cable 501 and prevent rain from corroding the steel cable. Since the suspension cable 5 is not like a steel pipe, the suspension cable 5 will be twisted when blown by strong wind. If the plastic soft sleeve is a round tube sleeve, the suspension cable 5 will generate a large twisting force on the plastic soft sleeve when it is twisted, which will easily cause the plastic soft sleeve to crack. After the spiral groove is provided on the outer wall of the plastic soft sleeve 502, due to the presence of the groove, the plastic soft sleeve (because the groove can expand or contract) can have a certain bending contraction, so that the plastic soft sleeve 502 has good anti-twisting ability and is less likely to crack.

[0027] See attached Figure 3 And attached Figure 4 Yes, the suspension cable 5 is also provided with a mounting sleeve 11, which is made of steel casting, and a cylinder gasket 12 is provided between the mounting sleeve 11 and the suspension cable 5, and the cylinder gasket 12 is a cylinder gasket 12 made of silicone material, and the cylinder gasket 12 is in a screw shape, and a leak hole 1201 is opened on the cylinder wall of the cylinder gasket, and the mounting sleeve 11 is used to install the photovoltaic panel 6. The above structure has the following advantages: First, the presence of the tube gasket 12 clamps the mounting sleeve 11 and the suspension cable 5 together, and at the same time the mounting sleeve 11 can rotate relative to the suspension cable 5. In this way, when the photovoltaic panel 6 on the mounting sleeve 11 tends to move under the action of wind, the mounting sleeve 11 can rotate relative to the suspension cable 5, and the photovoltaic panel 6 can also rotate to a certain extent relative to the wind direction, which can reduce the impact of wind on the photovoltaic panel.

[0028] Secondly, a leakage hole 1201 is provided on the cylinder gasket 12 of this type, because the cylinder gasket 12 is in contact with the plastic soft sleeve 502 of the suspension cable 5, and a spiral groove is provided on the plastic soft sleeve 502. The existence of the groove can increase the friction strength between the suspension cable and the cylinder gasket 12, but it will also cause the cylinder gasket to be stuck due to air pressure when it is inserted between the installation sleeve 11 and the suspension cable 5. Therefore, the leakage hole 1201 is provided on the cylinder gasket 12, and the leakage effect of the leakage hole 1201 is used to ensure that the air pressure inside and outside the cylinder gasket 12 is consistent, so as to ensure that the cylinder gasket 12 will not be stuck when inserted. At the same time, in rainy and snowy weather, there will be accumulated water remaining in the groove. If there is no leakage hole 1201 on the cylinder gasket 12, it may cause water accumulation in the groove. The existence of the leakage hole makes it impossible for the groove to form a closed space (and cannot form a negative pressure cavity), and the water flow can flow out directly along the leakage hole or along the groove, thereby avoiding the phenomenon of water accumulation in the suspension cable.

[0029] See attached Figure 3 The bracket also includes an L-shaped clamping block 10, and two elastic clips 1001 are arranged at the inner top corners of the clamping block 10. The clamping block 10 is made of metal. Each two clamping blocks 10 are welded and fixed together to form a square clamping ring. The clamping ring is sleeved on the mounting sleeve 11. The teeth of the gear surface 1101 of the mounting sleeve 11 are in the shape of an isosceles trapezoid. The two elastic clips clamp and fit one tooth. The clamping block 10 is provided with a screw hole, and the screw hole on the clamping block 10 is used to install the photovoltaic panel 6.

[0030] In the above structure, the photovoltaic panel 6 is installed by using the clamping block 10, and the elastic clip 1001 on the clamping block 10 clamps the teeth on the gear surface 1101. When the two cables 5 are in a parallel state, the cooperation between the clamping block 10 and the mounting sleeve 11 can allow the photovoltaic panel to be stably laid on the two cables. When the two cables 5 tend to become non-parallel under the action of external force or the distance between them tends to increase, the clamping ring can rotate relative to the mounting sleeve 11 (because the elastic clip 1001 elastically clamps the teeth), so that the photovoltaic panel 6 can be rotated and adjusted to a certain angle to prevent the two cables from directly tearing the photovoltaic panel 6. After the rotation, the clamping ring and the mounting sleeve 11 can still maintain the clamping position.

[0031] See attached Figure 1 The four top corners of the photovoltaic panel 6 are fixed to the suspension cable 5 through a mounting sleeve 11 and a clamping ring. A photovoltaic panel 6 has four fixing points, which ensures both fixing stability and fuel saving.

[0032] As attached Figure 1 As shown, it also includes a hydraulic station 8 and a control box 7. The control box 7 is connected to the damping device 3 with a fixed structure through a cable, and the hydraulic station is connected to the hydraulic cylinder through an oil pipe.

[0033] The function of the hydraulic station 8 and the control box 7 is to control the damping device 3 with a fixed structure and the hydraulic cylinder 9.

[0034] As attached Figure 1 As shown, the base frame includes a column 1 and a crossbeam 2. The crossbeam 2 is fixed on the column 1. The column 1 is perpendicular to the crossbeam 2. The tripod 4 and the damping device 3 with a fixed structure are hingedly matched with the crossbeam 2.

[0035] The specific hydraulic cylinder is also coordinated with the measuring articulation.

[0036] As attached Figure 1 As shown, there are two columns 1, which are respectively fixed at two ends of the beam 2, and the two columns 1 are parallel to each other.

[0037] As attached Figure 1As shown, the crossbeam 2 is a metal crossbeam 2 .

[0038] As attached Figure 1 As shown, the column 1 is a metal column 1.

[0039] As attached Figure 1 As shown, the length of the column 1 is greater than the length of the beam 2.

[0040] The above description is only a preferred embodiment of the present invention, and does not limit the patent protection scope of the present invention. Any equivalent transformations made using the specification of the present invention, directly or indirectly used in other related technical fields, are also included in the protection scope of the present invention.

Claims

1. A flexible tracking photovoltaic bracket based on a damping device, characterized in that: It comprises a base frame, a tripod, a hydraulic cylinder and a damping device with a fixed structure, wherein the tripod is in the shape of an isosceles triangle or an equilateral triangle, one end of the tripod is hingedly mounted on the base frame, one end of the damping device with a fixed structure is hingedly matched with the base frame, the other end of the damping device with a fixed structure is hingedly matched with the tripod, one end of the hydraulic cylinder is hingedly matched with the base frame, the other end of the hydraulic cylinder is hingedly matched with the tripod, and each tripod is provided with a damping device with a fixed structure and a hydraulic cylinder; It also includes a suspension cable and a photovoltaic panel, wherein two adjacent parallel photovoltaic brackets are connected by the suspension cable, two parallel suspension cables are arranged on the same tripod, and the photovoltaic panel is installed on the suspension cable; The suspension cable is also provided with a mounting sleeve; The suspension cable comprises a steel cable and a plastic soft cover, and the inner wall of the plastic soft cover is in close contact with the steel cable.

2. The flexible tracking photovoltaic bracket based on the damping device according to claim 1, characterized in that: It also includes an L-shaped clamping block, two elastic clips are arranged at the inner top corners of the clamping block, the clamping block is made of metal, and each two clamping blocks are welded and fixed together to form a square clamping ring, the clamping ring is sleeved on the mounting sleeve, the teeth on the gear surface of the mounting sleeve are in the shape of an isosceles trapezoid, and two elastic clips clamp and match one tooth; screw holes are opened on the clamping block, and the screw holes on the clamping block are used to install photovoltaic panels; when the two cables tend to become non-parallel under the action of external force or the distance between the two tends to increase, the clamping ring can rotate relative to the mounting sleeve, so that the photovoltaic panel can be rotated and adjusted accordingly.

3. The flexible tracking photovoltaic bracket based on the damping device according to claim 1, characterized in that: The outer wall of the plastic soft sleeve is provided with a spirally encircling groove.

4. The flexible tracking photovoltaic bracket based on the damping device according to claim 1, characterized in that: A cylinder washer is arranged between the installation sleeve and the suspension cable, and a leakage hole is arranged on the cylinder washer.

5. The flexible tracking photovoltaic bracket based on the damping device according to claim 1, characterized in that: The base frame comprises a column and a crossbeam, wherein the crossbeam is fixed on the column, and the column is perpendicular to the crossbeam. The tripod and the damping device with a fixed structure are both hingedly matched with the crossbeam.

6. The flexible tracking photovoltaic bracket based on the damping device according to claim 5, characterized in that: There are two upright posts, which are respectively fixed at two ends of the crossbeam and are parallel to each other.

7. The flexible tracking photovoltaic bracket based on the damping device according to claim 5, characterized in that: The crossbeam is a metal crossbeam.

8. The flexible tracking photovoltaic bracket based on the damping device according to claim 5, characterized in that: The pillar is a metal pillar.

9. The flexible tracking photovoltaic bracket based on the damping device according to claim 5, characterized in that: The length of the column is greater than the length of the beam.

10. The flexible tracking photovoltaic bracket based on the damping device according to claim 1, characterized in that: It also includes a hydraulic station and a control box. The control box is connected to the damping device with a fixed structure through a cable, and the hydraulic station is connected to the hydraulic cylinder through an oil pipe.

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