Self-locking mechanism, flat single-axis tracking photovoltaic support and photovoltaic power generation system

Abstract

The invention discloses a self-locking mechanism, a flat single-axis tracking photovoltaic support and a photovoltaic power generation system. Wherein the photovoltaic power generation system comprises a driving mechanism, a photovoltaic mechanism and a transmission mechanism, the transmission mechanism is in transmission connection with the photovoltaic mechanism, the photovoltaic mechanism comprises a first rotating shaft, and the driving mechanism comprises a second rotating shaft; the self-locking mechanism comprises a transmission and self-locking assembly and a transmission and reversing assembly, the transmission and self-locking assembly is used for being in transmission connection with the first rotating shaft to transmit or lock the transmission mechanism, and the transmission and reversing assembly is in transmission connection with the transmission and self-locking assembly and is used for being in transmission connection with the second rotating shaft. The self-locking mechanism can be adaptively installed between the first rotating shaft and the second rotating shaft and connected to the input end of the transmission mechanism, the situation that the self-locking mechanism is directly installed on the main beam is effectively avoided, the size and weight are greatly reduced, and installation and multi-point arrangement are facilitated.

Description

Technical Field

[0001] The present invention relates to the field of photovoltaic power generation equipment, and in particular to a self-locking mechanism, a flat single-axis tracking photovoltaic bracket and a photovoltaic power generation system. Background Art

[0002] Solar panels are devices that absorb sunlight and convert solar radiation energy directly or indirectly into electrical energy through the photoelectric effect or photochemical effect. Their share in the electricity market is increasing rapidly.

[0003] Currently, the mounting brackets used for solar photovoltaic modules mainly include fixed brackets and tracking brackets. Tracking brackets enable photovoltaic modules to move as the sun's incident angle changes, which greatly improves the power generation capacity compared to fixed brackets and is widely used.

[0004] With the development of photovoltaic energy, the area of ​​photovoltaic panel components is increasing. The increasing component area will amplify the wind and snow pressure on the bracket, especially in strong winds. The self-locking and wind-resistant ability of the bracket has undoubtedly become a top priority.

[0005] In the related art, the solar tracking bracket rotates the photovoltaic panel assembly by rotating the main beam of the slewing reduction mechanism. The slewing reduction mechanism has a self-locking function, which can lock the photovoltaic panel assembly from rotating when not in operation. Due to design limitations, the slewing reduction mechanism is large in size, heavy in weight (about 50 to 80 kilograms), and expensive, which greatly restricts the installation and multi-point arrangement of the slewing reduction mechanism (referring to setting the slewing reduction mechanism at multiple locations of the photovoltaic panel assembly). Summary of the invention

[0006] The first object of the present invention is to provide a self-locking mechanism, which aims to solve the technical problems that the existing self-locking mechanism (i.e., the rotary reduction mechanism) is set on the main beam, has a large volume and weight, is difficult to install, and has multiple points of arrangement.

[0007] To achieve the above object, the present invention provides a solution: a self-locking mechanism, applied to a photovoltaic power generation system, the photovoltaic power generation system includes a driving mechanism, a photovoltaic mechanism and a transmission mechanism, the transmission mechanism is connected to the photovoltaic mechanism, the photovoltaic mechanism includes a first rotating shaft, and the driving mechanism includes a second rotating shaft; the self-locking mechanism includes:

[0008] A transmission and self-locking component, the transmission and self-locking component is used to be in transmission connection with the first rotating shaft to transmit or lock the transmission mechanism;

[0009] A transmission and reversing component is transmission-connected to the transmission and self-locking component and is used for transmission connection to the second rotating shaft.

[0010] As an implementation mode, the transmission and self-locking assembly comprises a worm wheel and a worm, and the worm wheel and the worm are meshed;

[0011] The worm wheel is used for transmission connection with the first rotating shaft, and the worm is used for transmission connection with the transmission and reversing assembly;

[0012] The developed helix angle of the worm is smaller than the friction angle between the worm wheel and the worm.

[0013] As an implementation mode, the transmission and self-locking assembly further includes a first connecting shaft;

[0014] The first connecting shaft passes through the worm gear and is used for transmission connection with the first rotating shaft.

[0015] As an embodiment, the transmission and reversing assembly includes a first bevel gear and a second bevel gear, and the first bevel gear and the second bevel gear are meshed;

[0016] The first bevel gear is used for transmission connection to the second rotating shaft;

[0017] The second bevel gear is drivingly connected to the worm.

[0018] As an implementation manner, the center axis of the first bevel gear is parallel to the center axis of the worm gear.

[0019] As an implementation manner, a line connecting the central axis of the first bevel gear and the central axis of the worm gear is perpendicular to a horizontal plane.

[0020] As an implementation mode, the transmission and reversing assembly further comprises a second connecting shaft, and the second connecting shaft is passed through the first bevel gear;

[0021] The second connecting shaft is used for driving connection with the second rotating shaft.

[0022] The second object of the present invention is to provide a flat single-axis tracking photovoltaic bracket, which is applied to a photovoltaic power generation system, comprising:

[0023] A transmission mechanism, the transmission mechanism comprising a transmission assembly and a first rotating shaft, the transmission assembly being used for transmission connection between the first rotating shaft and the photovoltaic mechanism of the photovoltaic power generation system;

[0024] A driving mechanism, the driving mechanism comprising a driving assembly and a second rotating shaft, the driving assembly being used to drive the second rotating shaft to rotate;

[0025] A first column, wherein the first column is used to support the transmission mechanism;

[0026] a second column, the second column being used to support the driving mechanism;

[0027] In the above-mentioned self-locking mechanism, the transmission and self-locking component is in transmission connection with the first rotating shaft, and the transmission and reversing component is in transmission connection with the second rotating shaft.

[0028] As an implementation manner, the transmission mechanism, the self-locking mechanism and the first column are each provided in plurality and correspond one to one.

[0029] As an embodiment, each of the self-locking mechanisms further includes a second connecting shaft, the second rotating shaft includes a plurality of rotating rods, and each of the second connecting shafts is transmission-connected between two adjacent rotating rods.

[0030] A third object of the present invention is to provide a photovoltaic power generation system, comprising:

[0031] A photovoltaic mechanism, the photovoltaic mechanism comprising a photovoltaic panel assembly and a main beam, the photovoltaic panel assembly being connected to the main beam;

[0032] The above-mentioned flat single-axis tracking photovoltaic bracket is connected to the main beam.

[0033] The self-locking mechanism, flat single-axis tracking photovoltaic bracket and photovoltaic power generation system provided by the present invention can drive the transmission mechanism and photovoltaic mechanism to move when the driving mechanism is working, and can lock the photovoltaic mechanism when the driving mechanism is not working, so as to prevent the photovoltaic mechanism from moving under the action of external force; by setting the transmission and reversing components, the transmission and self-locking components can be driven to move when the driving mechanism is working, and the transmission direction can be changed, so that the transmission and self-locking components can be set to a position corresponding to the first rotating shaft, so that the transmission and self-locking components can be connected to the first rotating shaft. Therefore, the self-locking mechanism provided by the present invention can be adaptively installed between the first rotating shaft and the second rotating shaft, connected to the input end of the transmission mechanism, effectively avoiding direct installation on the main beam, greatly reducing the volume and weight, and facilitating installation and multi-point arrangement. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0035] Figure 1 is a front view of a photovoltaic power generation system provided by an embodiment of the present invention;

[0036] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0037] Figure 3 yes Figure 1 A partial enlarged view of point B in the middle;

[0038] Figure 4 It is a schematic structural diagram of a photovoltaic power generation system provided by an embodiment of the present invention with the housing of the self-locking mechanism removed;

[0039] Figure 5 yes Figure 4 A partial enlarged view of point C in the middle;

[0040] Figure 6 yes Figure 4 A partial enlarged view of point D in the middle;

[0041] Figure 7 is a structural schematic diagram of a self-locking mechanism provided by an embodiment of the present invention with the housing removed from one viewing angle;

[0042] Figure 8 It is a structural schematic diagram of another viewing angle of the self-locking mechanism provided by an embodiment of the present invention with the housing removed.

[0043] Description of Figure Numbers:

[0044] 100, self-locking mechanism; 10, transmission and reversing assembly; 11, first bevel gear; 12, second bevel gear; 13, second connecting shaft; 20, transmission and self-locking assembly; 21, worm gear; 22, worm; 23, first connecting shaft; 200, transmission mechanism; 201, transmission assembly; 2011, fixed frame; 2012, sprocket; 2013, pin wheel; 202, first rotating shaft; 300, driving mechanism; 301, driving assembly; 302, second rotating shaft; 3021, rotating rod; 400, first column; 401, column body; 402, rotating shaft; 500, second column; 600, photovoltaic mechanism; 601, photovoltaic panel assembly; 602, main beam; 700, supporting surface.

[0045] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0046] 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.

[0047] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0048] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0049] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0050] In the related art, the slewing reduction mechanism of the solar tracking bracket has a self-locking function, which can drive the photovoltaic panel assembly to rotate by rotating the main beam, and can lock the photovoltaic panel assembly from rotating when not in operation. Due to design limitations, the slewing reduction mechanism is large in size, heavy in weight, and expensive, which greatly restricts the installation and multi-point arrangement of the slewing reduction mechanism.

[0051] In view of this, the present invention provides a self-locking mechanism, a flat single-axis tracking photovoltaic bracket and a photovoltaic power generation system, wherein the photovoltaic power generation system includes a flat single-axis tracking photovoltaic bracket and a photovoltaic mechanism, the flat single-axis tracking photovoltaic bracket is supported on the photovoltaic mechanism, the flat single-axis tracking photovoltaic bracket includes a driving mechanism and a self-locking mechanism, and the self-locking mechanism is used to lock the photovoltaic mechanism when the driving mechanism is not working so that it cannot rotate.

[0052] like Figures 1 to 3 As shown, an embodiment of the present invention provides a flat single-axis tracking photovoltaic bracket, which is applied to a photovoltaic power generation system, including a self-locking mechanism 100, a transmission mechanism 200, a drive mechanism 300, a first column 400 and a second column 500. The first column 400 is used to support the transmission mechanism 200, and the second column 500 is used to support the drive mechanism 300. The self-locking mechanism 100 is transmission-connected between the drive mechanism 300 and the transmission mechanism 200, and the transmission mechanism 200 is used to transmission-connected to a photovoltaic mechanism 600 of the photovoltaic power generation system.

[0053] During use, when the driving mechanism 300 is working, the driving mechanism 300 drives the self-locking mechanism 100 to move, thereby driving the transmission mechanism 200 and the photovoltaic mechanism 600 to move; when the driving mechanism 300 stops working, the self-locking mechanism 100 is in a locked state. When the photovoltaic mechanism 600 is subjected to external force, the self-locking mechanism 100 applies an opposite force to it through the transmission mechanism 200 to prevent the photovoltaic mechanism 600 from moving. Therefore, wind loads and the like are completely isolated by the self-locking mechanism 100 and cannot be transmitted to the driving mechanism 300.

[0054] As an implementation manner, the first column 400 and the second column 500 are both fixed on a support surface 700 , and the support surface 700 may be the ground or a roof.

[0055] As an implementation method, refer to Figures 4 to 6 As shown, the transmission mechanism 200 includes a transmission assembly 201 and a first rotating shaft 202, the transmission assembly 201 is used for transmission connection between the first rotating shaft 202 and the photovoltaic mechanism 600, and the first rotating shaft 202 is transmission connected to the output end of the self-locking mechanism 100. When the self-locking mechanism 100 moves, it drives the first rotating shaft 202 to rotate, thereby driving the transmission assembly 201 and the photovoltaic mechanism 600 to move.

[0056] As an implementation method, refer to Figure 1 and Figure 6 As shown, the first column 400 includes a column body 401 and a rotating shaft 402, the column body 401 is fixed on the support surface 700, the rotating shaft 402 is fixedly connected to the end of the column body 401 away from the support surface 700, the first rotating shaft 202 is rotatably connected to one end of the column body 401 close to the support surface 700, one end of the transmission assembly 201 is rotatably connected to the rotating shaft 402, and the other end is transmission-connected to the first rotating shaft 202. When the first rotating shaft 202 rotates, it drives the transmission assembly 201 to rotate around the rotating shaft 402, and the transmission assembly 201 rotates around the rotating shaft 402 to drive the photovoltaic mechanism 600 to rotate around the rotating shaft 402. In this way, the first column 400 supports and rotates the transmission assembly 201 and the photovoltaic mechanism 600, and the self-locking mechanism 100 is transmission-connected to the first rotating shaft 202, so that the first column 400 supports the self-locking mechanism 100. Therefore, the first column 400 can support the photovoltaic mechanism 600 and the self-locking mechanism 100 at the same time, and there is no need to set up different columns to support the photovoltaic mechanism 600 and the self-locking mechanism 100 respectively, which greatly reduces the number of columns, effectively reduces costs, and also increases land utilization.

[0057] Based on the previous implementation method, Figure 5 and Figure 6As shown, the transmission assembly 201 comprises a fixed frame 2011, a sprocket wheel 2012 and an arcuate pin wheel 2013, the fixed frame 2011 is fixedly connected to the photovoltaic mechanism 600 and is rotatably connected to the rotating shaft 402, the two ends of the pin wheel 2013 are fixedly connected to the fixed frame 2011, the sprocket wheel 2012 is arranged on the first rotating shaft 202, and the sprocket wheel 2012 and the pin wheel 2013 are meshed. The transmission mode of the sprocket wheel 2012 and the pin wheel 2013 can play a role in deceleration, that is to say, the torque can be increased. Therefore, when the self-locking mechanism 100 is arranged at the input end of the transmission mechanism 200, it is conducive to the miniaturization design of the self-locking mechanism 100, and then the volume and weight of the self-locking mechanism 100 are reduced, and it is convenient to the installation and multi-point arrangement of the self-locking mechanism 100. For example, the weight of the self-locking mechanism 100 in the present embodiment can be set to be less than 10 kilograms.

[0058] As an implementation method, refer to Figure 3 and Figure 6 As shown, the driving mechanism 300 includes a driving assembly 301 and a second rotating shaft 302. The driving assembly 301 is used to drive the second rotating shaft 302 to rotate. The second rotating shaft 302 is connected to the input end of the self-locking mechanism 100. When the driving assembly 301 drives the second rotating shaft 302 to rotate, the self-locking mechanism 100 is driven to move.

[0059] As an implementation, the driving assembly 301 includes a motor. It is understood that in other embodiments, the driving assembly 301 may include a hydraulic cylinder.

[0060] As an implementation mode, the transmission mechanism 200, the self-locking mechanism 100 and the first column 400 are provided in multiple numbers and correspond one to one. That is to say, one first column 400 supports one transmission mechanism 200, and one self-locking mechanism 100 is provided at the input end of one transmission mechanism 200. Each self-locking mechanism 100 is connected to the driving mechanism 300 by transmission, thereby, the photovoltaic mechanism 600 can be synchronously driven at multiple points, and the photovoltaic mechanism 600 can also be locked at multiple points to improve the locking efficiency. Specifically, all the self-locking mechanisms 100 are connected to the second rotating shaft 302 by transmission, and each self-locking mechanism 100 is connected to the corresponding first rotating shaft 202 by transmission. When the driving assembly 301 drives the second rotating shaft 302 to rotate, the second rotating shaft 302 drives all the self-locking mechanisms 100 to move, and the movement of each self-locking mechanism 100 drives the corresponding first rotating shaft 202 to rotate.

[0061] On the basis of the previous embodiment, a plurality of transmission mechanisms 200 are arranged at intervals along the length direction of the photovoltaic mechanism 600. This is conducive to the overall consistency of the rotation of the photovoltaic mechanism 600, and each transmission mechanism 200 is connected to a self-locking mechanism 100, so that the photovoltaic mechanism 600 can also be locked at multiple locations along its length direction.

[0062] Based on the previous embodiment, multiple transmission mechanisms 200 are arranged at equal intervals along the length direction of the photovoltaic mechanism 600. Of course, in a specific application, as an alternative embodiment, multiple transmission mechanisms 200 are arranged at unequal intervals along the length direction of the photovoltaic mechanism 600.

[0063] As an embodiment, the second rotating shaft 302 includes a plurality of rotating rods 3021, and each self-locking mechanism 100 is transmission-connected between two adjacent rotating rods 3021. In this embodiment, the self-locking mechanism 100 has an input end and two output ends, wherein the input end and one output end are transmission-connected to two adjacent rotating rods 3021, respectively, and the other output end is transmission-connected to the first rotating shaft 202.

[0064] In another embodiment, the second rotating shaft 302 includes a rotating rod 3021 , and all the self-locking mechanisms 100 are connected to the rotating rod 3021 at intervals.

[0065] As an implementation method, the first rotating shaft 202 and the second rotating shaft 302 are arranged in parallel. Such an arrangement is conducive to the arrangement of other components of the bracket, making the arrangement of each component more reasonable and compact. Of course, as an alternative implementation method, in a specific application, the first rotating shaft 202 and the second rotating shaft 302 are not arranged in parallel.

[0066] On the basis of the previous embodiment, the line connecting the first rotating shaft 202 and the second rotating shaft 302 is perpendicular to the horizontal plane. In this way, it is more conducive to the arrangement of other components of the bracket. In this embodiment, the second rotating shaft 302 is arranged above the first rotating shaft 202. It can be understood that in other embodiments, the second rotating shaft 302 can also be arranged below the first rotating shaft 202.

[0067] Specifically, the first rotating shaft 202 is rotatably connected to the first column 400 , and the second rotating shaft 302 passes through the first column 400 and is located directly above the first rotating shaft 202 , wherein the second rotating shaft 302 does not contact the first column 400 .

[0068] As an implementation method, refer to Figure 2 , Figure 5 and Figure 6 As shown, the self-locking mechanism 100 includes a transmission and reversing component 10 and a transmission and self-locking component 20. The transmission and self-locking component 20 is used to be transmission-connected to the first rotating shaft 202 to transmit or lock the transmission mechanism 200. The transmission and reversing component 10 is transmission-connected to the transmission and self-locking component 20 and is used to be transmission-connected to the second rotating shaft 302.

[0069] When in use, the driving assembly 301 drives the second rotating shaft 302 to rotate, driving the self-locking mechanism 100 to move, and then driving the first rotating shaft 202 to rotate. The rotation of the first rotating shaft 202 drives the transmission assembly 201 and the photovoltaic mechanism 600 to move.

[0070] By adopting the above technical solution, by setting the transmission and self-locking assembly 20, the transmission mechanism 200 and the photovoltaic mechanism 600 can be driven to move when the driving mechanism 300 is working, and the photovoltaic mechanism 600 can be locked when the driving mechanism 300 is not working, so as to prevent the photovoltaic mechanism 600 from moving under the action of external force, so that the wind load and the like are completely isolated and cannot be transmitted to the driving mechanism 300; by setting the transmission and reversing assembly 10, the transmission and self-locking assembly 20 can be driven to move when the driving mechanism 300 is working, and the transmission direction can be changed, so that the transmission and self-locking assembly 20 can be set to a position corresponding to the first rotating shaft 202, so that the transmission and self-locking assembly 20 can be connected to the first rotating shaft 202. The self-locking mechanism 100 provided in the embodiment of the present invention can be adaptively installed between the first rotating shaft 202 and the second rotating shaft 302, connected to the input end of the transmission mechanism 200, effectively avoiding direct installation on the main beam 602, greatly reducing the volume and weight, and facilitating installation and multi-point arrangement.

[0071] As an implementation method, refer to Figures 5 to 8 As shown, the transmission and self-locking assembly 20 includes a worm wheel 21 and a worm 22, which are meshed with each other; the worm wheel 21 is used for transmission connection with the first rotating shaft 202, and the worm 22 is transmission connection with the transmission and reversing assembly 10. In this way, the transmission and self-locking assembly 20 is arranged at the input end of the transmission mechanism 200 and has the function of transmission. At the same time, the arrangement of the worm wheel 21 and the worm 22 also has the function of deceleration, which can increase the torque.

[0072] As an implementation method, the developed helix angle of the worm 22 is smaller than the friction angle of the contact between the worm wheel 21 and the worm 22. With such an arrangement, the transmission and self-locking assembly 20 has a self-locking function.

[0073] As an implementation method, refer to Figures 6 to 8As shown, the transmission and self-locking assembly 20 also includes a first connecting shaft 23; the first connecting shaft 23 is inserted into the worm wheel 21, and is used for transmission connection with the first rotating shaft 202. When the worm wheel 21 rotates, the first connecting shaft 23 is driven to rotate, and then the first rotating shaft 202 is driven to rotate. Among them, the first connecting shaft 23 is fixedly connected to the first rotating shaft 202, for example, the first connecting shaft 23 is inserted into the first rotating shaft 202, or the first rotating shaft 202 is inserted into the first connecting shaft 23, so as to realize the transmission connection between the first connecting shaft 23 and the first rotating shaft 202. It can be understood that in other embodiments, the transmission and self-locking assembly 20 is not provided with the first connecting shaft 23. When this embodiment is adopted, the length of the first rotating shaft 202 is long enough, and the sprocket 2012 of the transmission assembly 201 and the worm wheel 21 are both sleeved on the periphery of the first rotating shaft 202. When the worm wheel 21 rotates, the first rotating shaft 202 and the sprocket 2012 are driven to rotate.

[0074] As an implementation method, refer to Figures 6 to 8 As shown, the transmission and reversing assembly 10 includes a first bevel gear 11 and a second bevel gear 12, which are meshed with each other; the first bevel gear 11 is used for transmission connection to the second rotating shaft 302; the second bevel gear 12 is transmission connected to the worm 22. In this way, the transmission function and reversing function of the transmission and reversing assembly 10 are realized. In specific applications, the coordinated transmission of the first bevel gear 11 and the second bevel gear 12 can be original speed transmission, or can be reduction transmission or acceleration transmission.

[0075] As an implementation mode, the central axis of the first bevel gear 11 is parallel to the central axis of the worm gear 21. In this way, the first rotating shaft 202 and the second rotating shaft 302 are parallel.

[0076] As an implementation mode, the line connecting the central axis of the first bevel gear 11 and the central axis of the worm gear 21 is perpendicular to the horizontal plane. In this way, the first rotating shaft 202 and the second rotating shaft 302 are arranged at intervals in the vertical direction.

[0077] As an implementation method, refer to Figures 6 to 8As shown, the transmission and reversing assembly 10 also includes a second connecting shaft 13, which is inserted into the first bevel gear 11; the second connecting shaft 13 is used for transmission connection with the second rotating shaft 302. The rotation of the second rotating shaft 302 drives the two connecting shafts to rotate, and then drives the first bevel gear 11 to rotate. Among them, the second connecting shaft 13 is fixedly connected to the second rotating shaft 302, for example, the second connecting shaft 13 is inserted into the second rotating shaft 302, or the second rotating shaft 302 is inserted into the second connecting shaft 13, so as to realize the transmission connection between the second rotating shaft 302 and the second connecting shaft 13. In this embodiment, when multiple self-locking mechanisms 100 are provided, the second rotating shaft 302 includes multiple rotating rods 3021, and the second connecting shaft 13 is transmission connected between two adjacent rotating rods 3021, wherein the rotation of the upper rotating rod 3021 drives the rotation of the second connecting shaft 13, and the rotation of the second connecting shaft 13 simultaneously drives the rotation of the first bevel gear 11 and the next rotating rod 3021.

[0078] It is understandable that in other embodiments, the transmission and reversing assembly 10 may not be provided with the second connecting shaft 13. When this arrangement is adopted, the first bevel gear 11 is sleeved on the periphery of the second rotating shaft 302, and the rotation of the second rotating shaft 302 drives the rotation of the first bevel gear 11. When multiple self-locking mechanisms 100 are provided, the rotation of the second rotating shaft 302 drives the rotation of multiple first bevel gears 11 at the same time.

[0079] As an embodiment, the self-locking mechanism 100 further includes a housing (not shown), which is disposed outside the transmission and self-locking assembly 20 and the transmission and reversing assembly 10 to protect the transmission and self-locking assembly 20 and the transmission and reversing assembly 10.

[0080] As an embodiment, the self-locking mechanism 100 further includes a plurality of bearings (not shown), some of which are disposed between the transmission and reversing assembly 10 and the housing, and some of which are disposed between the transmission and self-locking assembly 20 and the housing.

[0081] Further, refer to Figure 1 and Figure 2 As shown, an embodiment of the present invention further provides a photovoltaic power generation system, including a photovoltaic mechanism 600 and the above-mentioned flat single-axis tracking photovoltaic bracket; the photovoltaic mechanism 600 includes a photovoltaic panel assembly 601 and a main beam 602, the photovoltaic panel assembly 601 is connected to the main beam 602, and the flat single-axis tracking photovoltaic bracket is connected to the main beam 602. In this way, the flat single-axis tracking photovoltaic bracket supports the photovoltaic panel assembly 601. Among them, there are two main beams 602, and the two main beams 602 are parallel and symmetrically arranged along the length direction of the photovoltaic panel assembly 601.

[0082] By adopting the above-mentioned flat single-axis tracking photovoltaic bracket, when the photovoltaic panel assembly 601 is subjected to external force, different parts can have corresponding self-locking mechanisms 100 to lock it, and no local swing will occur. In addition, the self-locking mechanism 100 is small in size and light in weight, and is easy to install.

[0083] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A self-locking mechanism, applied to a photovoltaic power generation system, the photovoltaic power generation system comprising a driving mechanism, a photovoltaic mechanism and a transmission mechanism, the transmission mechanism is connected to the photovoltaic mechanism, the photovoltaic mechanism comprises a first rotating shaft, and the driving mechanism comprises a second rotating shaft; characterized in that: The self-locking mechanism comprises: A transmission and self-locking component, the transmission and self-locking component is used to be in transmission connection with the first rotating shaft to transmit or lock the transmission mechanism; A transmission and reversing component is transmission-connected to the transmission and self-locking component and is used for transmission connection to the second rotating shaft.

2. The self-locking mechanism according to claim 1, characterized in that: The transmission and self-locking assembly comprises a worm wheel and a worm, wherein the worm wheel and the worm are meshed with each other; The worm wheel is used for transmission connection with the first rotating shaft, and the worm is used for transmission connection with the transmission and reversing assembly; The developed helix angle of the worm is smaller than the friction angle between the worm wheel and the worm.

3. The self-locking mechanism according to claim 2, characterized in that: The transmission and self-locking assembly also includes a first connecting shaft; The first connecting shaft passes through the worm gear and is used for transmission connection with the first rotating shaft.

4. The self-locking mechanism according to claim 2, characterized in that: The transmission and reversing assembly comprises a first bevel gear and a second bevel gear, wherein the first bevel gear and the second bevel gear are meshed with each other; The first bevel gear is used for transmission connection to the second rotating shaft; The second bevel gear is drivingly connected to the worm.

5. The self-locking mechanism according to claim 4, characterized in that: The center axis of the first bevel gear is parallel to the center axis of the worm gear.

6. The self-locking mechanism according to claim 5, characterized in that: A line connecting the central axis of the first bevel gear and the central axis of the worm gear is perpendicular to a horizontal plane.

7. The self-locking mechanism according to any one of claims 4 to 6, characterized in that: The transmission and reversing assembly further comprises a second connecting shaft, and the second connecting shaft is passed through the first bevel gear; The second connecting shaft is used for driving connection with the second rotating shaft.

8. A flat single-axis tracking photovoltaic bracket, applied to a photovoltaic power generation system, characterized in that: include: A transmission mechanism, the transmission mechanism comprising a transmission assembly and a first rotating shaft, the transmission assembly being used for transmission connection between the first rotating shaft and the photovoltaic mechanism of the photovoltaic power generation system; A driving mechanism, the driving mechanism comprising a driving assembly and a second rotating shaft, the driving assembly being used to drive the second rotating shaft to rotate; A first column, wherein the first column is used to support the transmission mechanism; a second column, the second column being used to support the driving mechanism; According to the self-locking mechanism as described in any one of claims 1 to 7, the transmission and self-locking component is in transmission connection with the first rotating shaft, and the transmission and reversing component is in transmission connection with the second rotating shaft.

9. The flat single-axis tracking photovoltaic bracket according to claim 8, characterized in that: The transmission mechanism, the self-locking mechanism and the first column are each provided in plurality and correspond one to one.

10. The flat single-axis tracking photovoltaic bracket according to claim 9, characterized in that: Each of the self-locking mechanisms further includes a second connecting shaft, the second rotating shaft includes a plurality of rotating rods, and each of the second connecting shafts is transmission-connected between two adjacent rotating rods.

11. A photovoltaic power generation system, characterized in that: include: A photovoltaic mechanism, the photovoltaic mechanism comprising a photovoltaic panel assembly and a main beam, the photovoltaic panel assembly being connected to the main beam; The flat single-axis tracking photovoltaic bracket according to any one of claims 8 to 10, wherein the flat single-axis tracking photovoltaic bracket is connected to the main beam.

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