Locking device applied to photovoltaic support and photovoltaic support

Abstract

The utility model relates to a locking device applied to a photovoltaic support and the photovoltaic support. The locking device comprises a driven piece, a driving piece and a locking piece, and the driving piece is provided with a shifting part; the first contact surface is constructed on the shifting part, the second contact surface is constructed on the locking piece, and the first contact surface and the second contact surface are matched in shape, so that when the shifting part abuts against the locking piece, the shifting part and the locking piece are in surface contact, and the contact area of the shifting part and the locking piece is increased. Therefore, the contact stress between the locking piece and the shifting part can be reduced, the fatigue risk of the locking piece and the shifting part is reduced, the rigidity between the first contact surface and the second contact surface is enhanced, and the service life of the shifting part and the locking piece is prolonged; and moreover, the possibility of relative displacement between the locking piece and the shifting part can be reduced, so that the reliability that the shifting part pushes the locking piece to retreat from the locking position to drive the driven piece to rotate is improved, and the use reliability of the locking device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of photovoltaic technology, in particular to a lock applied to a photovoltaic support and a photovoltaic support. BACKGROUND

[0002] The photovoltaic tracking support is an important component in the photovoltaic system, which is mainly used for supporting photovoltaic modules and assisting the photovoltaic modules to capture the incident solar energy to the maximum extent, so as to increase the amount of solar radiation received by the photovoltaic modules and improve the overall power generation.

[0003] Taking a single-point driving system as an example, the photovoltaic tracking support generally comprises a plurality of main shafts and a lock connected between adjacent two main shafts, the torque transmission from an input main shaft to an output main shaft in the adjacent two main shafts is realized through the lock, and the output main shaft is limited to transmit the torque to the input main shaft. The locking ability of the lock is one of the key factors to ensure the safe and stable operation of the photovoltaic system.

[0004] In the related art, the use reliability of the lock is poor. UTILITY MODEL CONTENT

[0005] Therefore, it is necessary to provide a lock to solve the problem of poor use reliability of the existing lock.

[0006] A lock applied to a photovoltaic support, the lock comprising:

[0007] a driven part comprising a locking disc and a driven shaft connected to the locking disc;

[0008] an active part provided with at least two dialing parts spaced along the circumferential direction thereof;

[0009] a locking unit arranged between adjacent two dialing parts; the locking unit comprises at least two locking parts and an elastic part connected between adjacent two locking parts; the elastic part is used to drive the locking part to be in a locking position, so that the locking part in the locking position blocks the rotation of the driven part relative to the locking part along the circumferential direction;

[0010] The dialing part is configured with a first contact surface, the locking part is configured with a second contact surface, and the dialing part is configured to be operatively rotated to abut the first contact surface against the second contact surface to drive the locking part to make a circular motion, wherein the first contact surface and the second contact surface are surface contact.

[0011] In one embodiment, the first contact surface and the second contact surface are both configured as arc surfaces, and the centers of curvature of the two arc surfaces coincide.

[0012] In one of the embodiments, the line connecting the geometric center of the first contact surface and the geometric center of the adjacent locking member is parallel to the tangent direction of the locking member.

[0013] In one of the embodiments, the first contact surface and the second contact surface are both configured as planes.

[0014] In one of the embodiments, the locking member is configured with a third contact surface, and the locking disc is configured with a fourth contact surface.

[0015] When the locking member is in the locking position, the third contact surface abuts against the fourth contact surface.

[0016] In one of the embodiments, the third contact surface and the fourth contact surface are both configured as curved surfaces, and the third contact surface and the fourth contact surface are in surface contact.

[0017] In one of the embodiments, the locking device comprises a spacer sleeve, and the driving member, the driven member and the locking member are all rotationally connected to the spacer sleeve.

[0018] In one of the embodiments, the locking member is configured with a fifth contact surface, and when the locking member is in the locking position, the fifth contact surface abuts against the inner circumferential surface of the spacer sleeve, and the fifth contact surface and part of the inner circumferential surface of the spacer sleeve are in surface contact.

[0019] In one of the embodiments, the outer circumferential surface of the spacer sleeve is configured with anti-skid lines; and / or,

[0020] The inner circumferential surface of the spacer sleeve and the outer circumferential surface of the driving member are respectively machined with a first inner raceway and a first outer raceway, and a first rolling body is rotationally connected between the first inner raceway and the first outer raceway; and / or,

[0021] The inner circumferential surface of the spacer sleeve and the outer circumferential surface of the driven member are respectively machined with a second inner raceway and a second outer raceway, and a second rolling body is rotationally connected between the second inner raceway and the second outer raceway.

[0022] A photovoltaic support, comprising a plurality of main shafts and a locking device as described above connected between two adjacent main shafts.

[0023] The lock, by configuring the first contact surface on the knob and the second contact surface on the locking piece, and matching the shapes of the first contact surface and the second contact surface, so that when the knob abuts against the locking piece, the knob and the locking piece are in surface contact, so that the contact area of the two is increased. In this way, not only can the contact stress between the locking piece and the knob be reduced, the fatigue risk of the locking piece and the knob can be reduced, the rigidity between the first contact surface and the second contact surface can be enhanced, and the service life of the knob and the locking piece can be prolonged; but also the possibility of relative displacement between the locking piece and the knob can be reduced, thereby improving the reliability of the knob pushing the locking piece out of the locking position to drive the driven piece to rotate, and improving the use reliability of the lock. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A schematic view of the lock provided by the first embodiment of the present application.

[0025] Figure 2 A sectional view of the lock shown in FIG. Figure 1

[0026] Figure 3 A partial enlarged view of position A in the lock shown in FIG. Figure 2

[0027] A partial enlarged view of position B in the lock shown in FIG. Figure 4

[0028] A sectional view of the lock shown in FIG. Figure 5 Figure 2 A partial enlarged view of position C in the lock shown in FIG.

[0029] Figure 6 Figure 5 A partial enlarged view of position B in the lock shown in FIG.

[0030] Figure 7 A schematic view of the lock provided by the third embodiment of the present application.

[0031] Figure 8 A partial enlarged view of position C in the lock shown in FIG. Figure 7

[0032] Corresponding reference numerals: 100, driven piece; 110, locking disc; 111, accommodating space; 112, insertion column; 113, fourth contact surface; 120, driven shaft; 121, second clamping portion;

[0033] 200, driving piece; 210, knob; 211, first contact surface;

[0034] ​​​​310, locking member; 311, second contact surface; 312, third contact surface; 313, fifth contact surface; 320, elastic member; 321, first abutting portion; 322, second abutting portion; 323, transition portion; 324, limiting portion;

[0035] 410, mounting seat; 411, housing; 412, mounting leg; 420, spacer sleeve. DETAILED DESCRIPTION

[0036] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways beyond the specific embodiments described herein, and it is understood that similar improvements can be made by those skilled in the art without departing from the scope of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0037] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0038] In addition, if the terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0039] In the present application, unless otherwise specifically defined and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] In this application, unless otherwise explicitly specified and limited, if there is a description of a first feature "on" or "under" a second feature, etc., it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "on", "above" and "over" the second feature can be that the first feature is directly above or obliquely above the second feature, or only means that the first feature is horizontally higher than the second feature. The first feature "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only means that the first feature is horizontally lower than the second feature.

[0041] It should be noted that if an element is referred to as being "fixed" or "set" to another element, it can be directly on the other element or there can be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be an intermediate element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for illustrative purposes and do not represent the only implementation.

[0042] Referring to Figure 1 and Figure 6 The locking device for photovoltaic support provided by an embodiment of the present application is used to connect two adjacent main shafts, and comprises a driven part 100, a driving part 200 and a locking unit. The driven part 100 comprises a locking disc 110 and a driven shaft 120 connected to the locking disc 110. The driving part 200 is provided with at least two rotating parts 210 spaced along the circumference of the driving part 200. The locking unit is arranged between two adjacent rotating parts 210. The locking unit comprises at least two locking parts 310 and an elastic part 320 connected between the two adjacent locking parts 310. The elastic part 320 is used to drive the locking parts 310 to be in a locking position, so that the locking parts 310 in the locking position block the driven part 100 from rotating relative to the locking parts 310 in the circumferential direction. The rotating part 210 is configured with a first contact surface 211, and the locking part 310 is configured with a second contact surface 311. The rotating part 210 is configured to be operable to rotate so that the first contact surface 211 abuts against the second contact surface 311 to drive the locking part 310 to move in a circular motion. The first contact surface 211 and the second contact surface 311 are in surface contact.

[0043] It can be understood that the driving member 200 is provided with a first clamping portion (not shown), the driven member 100 is provided with a second clamping portion 121, the first clamping portion is inserted with the second clamping portion 121, and there is a gap between the first clamping portion and the second clamping portion 121. When the torque of the driving system is transmitted to the driving member 200 to drive the driving member 200 to rotate, the driving member 200 pushes the locking member 310 away from the locking position through the poking portion 210 until the outer periphery of the first clamping portion abuts against the second clamping portion 121, thereby driving the driven member 100 to rotate and transmitting the rotary power to the output spindle connected with the driven member 100, realizing the synchronous rotation of multiple spindles, and further ensuring the consistency of the orientation of multiple photovoltaic modules and the photovoltaic power generation rate. In an embodiment, the elastic member 320 can be a leaf spring, the poking portion 210 can be a pawl, the locking member 310 can be a roller, one of the first clamping portion and the second clamping portion 121 can be a clamping block, and the other can be a clamping groove.

[0044] When the wind load acts on the output spindle, the output spindle will produce torsional deformation and drive the driven member 100 to produce a small amount of movement. Even if the small amount of movement of the driven member 100 drives the locking member 310 to produce a small amount of movement, because the elastic members 320 are arranged between adjacent locking members 310, under the action of the elastic members 320, the locking members 310 will quickly return to the locking position, so the driven member 100 cannot continue to rotate relative to the locking member 310, and the second clamping portion 121 cannot abut against the first clamping portion, and thus the torque of the output spindle cannot be transmitted to the input spindle connected with the driving member 200, the torque is blocked at the locking device, thereby reducing the possibility of damage caused by the torsion of the input spindle, improving the torsion resistance and service life of the photovoltaic support, and further ensuring the photovoltaic power generation rate.

[0045] As shown in FIG. 1, Figure 2 In an embodiment, taking an example that each locking unit includes two locking members 310, two locking members 310 are arranged between two poking portions 210 to cooperate with each other, one of the two locking members 310 is used to limit the clockwise rotation of the driven member 100, and the other locking member 310 is used to limit the counterclockwise rotation of the driven member 100. In this way, the locking in two directions can be realized through the two locking members 310 respectively, thereby improving the use reliability of the locking device. Through the cooperation of the locking device and the driving system, the torque holding points of the photovoltaic support are increased from one to multiple, and the wind resistance of the entire photovoltaic support is significantly improved. It can be understood that in other embodiments, the number of locking members 310 in each locking unit can also be greater than two, that is, the number of locking members 310 is 2N, where N is a positive integer, which can be set according to actual needs.

[0046] The above-mentioned lock, by configuring the first contact surface 211 on the knob 210, configuring the second contact surface 311 on the locking piece 310, and adapting the shapes of the first contact surface 211 and the second contact surface 311, so that when the knob 210 abuts against the locking piece 310, the knob 210 and the locking piece 310 are in surface contact, so that the contact area of the two is increased. In this way, not only can the contact stress between the locking piece 310 and the knob 210 be reduced, the fatigue risk of the locking piece 310 and the knob 210 can be reduced, the rigidity between the first contact surface 211 and the second contact surface 311 can be enhanced, and the service life of the knob 210 and the locking piece 310 can be prolonged; but also the possibility of relative displacement between the locking piece 310 and the knob 210 can be reduced, thereby improving the reliability of the knob 210 pushing the locking piece 310 out of the locked position to drive the driven piece 100 to rotate, and improving the use reliability of the lock.

[0047] As shown in Figure 6 , in one embodiment, the first contact surface 211 and the second contact surface 311 are both configured as arc surfaces, and the centers of curvature of the two coincide, that is, the shapes of the first contact surface 211 and the second contact surface 311 are consistent. For example, in the embodiment shown in Figure 6 , the cross-sectional shape of the locking piece 310 is circular, the cross-sectional shape of the knob 210 is approximately rectangular, and the first contact surface 211 of the knob 210 is concave inward. By designing the first contact surface 211 and the second contact surface 311 as arc surfaces, the transition between the knob 210 and the locking piece 310 is smoother, and the knob 210 and the locking piece 310 can better abut against each other through the first contact surface 211 and the second contact surface 311. In this way, the knob 210 can better push the locking piece 310 out of the locked position, improve the reliability of the knob 210 fully applying the pushing force to the locking piece 310, and reduce the contact stress between the locking piece 310 and the knob 210, and reduce the fatigue risk of the locking piece 310 and the knob 210.

[0048] As shown in Figure 6 , in one embodiment, the line connecting the geometric center of the first contact surface 211 and the geometric center of the adjacent locking piece 310 is parallel to the tangent direction of the locking piece 310. As shown in Figure 6As shown, the tangential direction of one of the locking members 310 is shown by a dashed arrow, and the line connecting the geometric center of the first contact surface 211 and the geometric center of the locking member 310 is shown by a dashed line. Since the direction of the pushing force applied by the knob 210 is parallel to the tangential direction of the locking member 310, the pushing force transmitted by the knob 210 can be fully applied to the locking member 310, that is, all the pushing force is used to make the locking member 310 move in a circular motion, so that the knob 210 can push the locking member 310 out of the locking position with a smaller force, reducing the impact and stress damage caused by a larger force applied to the locking member 310 during operation.

[0049] As shown in FIG. 1, the first contact surface 211 and the second contact surface 311 are both configured as planes. Figures 7 to 8 As shown in FIG. 1, the cross-sectional shape of the locking member 310 and the knob 210 is shaped. By configuring the first contact surface 211 and the second contact surface 311 as planes, the first contact surface 211 and the second contact surface 311 are easily machined; and when the first contact surface 211 and the second contact surface 311 are planes, the pressure distribution is more uniform, which helps to prevent local stress concentration and prolong the service life of the locking member 310 and the knob 210. Figure 8

[0050] As shown in FIG. 1, in one of the embodiments, the locking member 310 is configured with a third contact surface 312, and the locking disc 110 is configured with a fourth contact surface 113; when the locking member 310 is in the locking position, the third contact surface 312 abuts against the fourth contact surface 113. By abutting and limiting the radially inner side of the locking member 310 by the locking disc 110, the reliability of the locking member 310 in the locking position is ensured. Figures 7 to 8 As shown in FIG. 1, in one of the embodiments, the third contact surface 312 and the fourth contact surface 113 are both configured as arc surfaces, and the third contact surface 312 and the fourth contact surface 113 are in surface contact. By this arrangement, the locking member 310 and the locking disc 110 are closely fitted, and when the locking disc 110 rotates in a certain direction, the frictional force between the third contact surface 312 and the fourth contact surface 113 is sufficient to overcome the rotational component to form a self-locking, improving the reliability of the locking member 310 in the locking position. On the other hand, when the knob 210 pushes the locking member 310 out of the locking position, since the third contact surface 312 and the fourth contact surface 113 are in surface contact, the locking disc 110 can also guide and limit the movement trajectory of the locking member 310, improving the movement reliability of the locking member 310, reducing the possibility of the locking member 310 moving, and reducing the movement impact.

[0051] Figures 7 to 8 As shown in FIG. 1, in one of the embodiments, the third contact surface 312 and the fourth contact surface 113 are both configured as arc surfaces, and the third contact surface 312 and the fourth contact surface 113 are in surface contact. By this arrangement, the locking member 310 and the locking disc 110 are closely fitted, and when the locking disc 110 rotates in a certain direction, the frictional force between the third contact surface 312 and the fourth contact surface 113 is sufficient to overcome the rotational component to form a self-locking, improving the reliability of the locking member 310 in the locking position. On the other hand, when the knob 210 pushes the locking member 310 out of the locking position, since the third contact surface 312 and the fourth contact surface 113 are in surface contact, the locking disc 110 can also guide and limit the movement trajectory of the locking member 310, improving the movement reliability of the locking member 310, reducing the possibility of the locking member 310 moving, and reducing the movement impact.

[0052] As shown in FIG. 1, in one of the embodiments, the third contact surface 312 and the fourth contact surface 113 are both configured as arc surfaces, and the third contact surface 312 and the fourth contact surface 113 are in surface contact. By this arrangement, the locking member 310 and the locking disc 110 are closely fitted, and when the locking disc 110 rotates in a certain direction, the frictional force between the third contact surface 312 and the fourth contact surface 113 is sufficient to overcome the rotational component to form a self-locking, improving the reliability of the locking member 310 in the locking position. On the other hand, when the knob 210 pushes the locking member 310 out of the locking position, since the third contact surface 312 and the fourth contact surface 113 are in surface contact, the locking disc 110 can also guide and limit the movement trajectory of the locking member 310, improving the movement reliability of the locking member 310, reducing the possibility of the locking member 310 moving, and reducing the movement impact. Figure 1 Figure 2 ​​​As shown in the drawings, in some embodiments, the lock includes a mounting base 410, the driving member 200 and the driven member 100 are rotatably arranged in the mounting base 410, and the driving member 200 and the driven member 100 are supported by the mounting base 410 to improve the stability during use. In some embodiments, the mounting base 410 includes a housing 411 and two mounting legs 412 located on both sides of the housing 411, and the housing 411 and the two mounting legs 412 are both forged to improve the strength and hardness. In some embodiments, the housing 411 and the two mounting legs 412 are arranged in a split manner, and the housing 411 and the two mounting legs 412 are fixed by fasteners such as screws to improve the strength. In other embodiments, the housing 411 and the mounting base 410 can also be arranged in an integrated manner.

[0053] As shown in the drawings, Figure 1 and Figure 2 As shown in the drawings, in some embodiments, the lock includes a spacer sleeve 420, and the locking member 310, the driving member 200 and the driven member 100 are all rotatably connected to the spacer sleeve 420. In some embodiments, the spacer sleeve 420 is sleeved in the mounting base 410. By arranging the spacer sleeve 420, on the one hand, it plays a sealing role, and on the other hand, it plays a role of installation and fixation, so that the locking member 310 and other components are not easy to slide out, and the use reliability of the lock is improved.

[0054] In some embodiments, the outer circumferential surface of the spacer sleeve 420 is processed with anti-skid lines (not shown in the drawings), and by arranging the anti-skid lines, the friction coefficient between the outer ring of the spacer sleeve 420 and the inner wall of the mounting base 410 is increased, so that the spacer sleeve can withstand greater holding force.

[0055] In some embodiments, the inner circumferential surface of the spacer sleeve 420 and the outer circumferential surface of the driving member 200 are respectively processed with a first inner raceway (not shown in the drawings) and a first outer raceway (not shown in the drawings), and a plurality of first rolling bodies (not shown in the drawings) are arranged at intervals between the first inner raceway and the first outer raceway. When the driving member 200 rotates relative to the spacer sleeve 420, the first rolling bodies roll synchronously, thereby reducing the friction force of the driving member 200 rotating relative to the spacer sleeve 420. In an embodiment, the first rolling bodies are steel balls.

[0056] In some embodiments, the inner wall of the spacer sleeve 420 and the outer wall of the driven member 100 are respectively processed with a second inner raceway (not shown in the drawings) and a second outer raceway (not shown in the drawings), and a plurality of second rolling bodies (not shown in the drawings) are arranged at intervals between the second inner raceway and the second outer raceway. When the driven member 100 rotates relative to the spacer sleeve 420, the second rolling bodies roll synchronously, thereby reducing the friction force of the driven member 100 rotating relative to the spacer sleeve 420. In some embodiments, the second rolling bodies are steel balls.

[0057] As shown in the drawings, Figures 7 to 8As shown, in one of the embodiments, the locking member 310 is configured with a fifth contact surface 313, and when the locking member 310 is in the locking position, the fifth contact surface 313 abuts against the inner circumferential surface of the spacer sleeve 420, and the fifth contact surface 313 and the part of the inner circumferential surface of the spacer sleeve 420 are in surface contact. For example, in the embodiment shown, the inner circumferential surface of the spacer sleeve 420 is circular, and the fifth contact surface 313 is configured as a partial circular arc, i.e., the center of curvature of the fifth contact surface 313 and the inner circumferential surface of the spacer sleeve 420 coincide. In this way, the contact area between the locking member 310 and the spacer sleeve 420 can be increased, thereby reducing the contact stress between the locking member 310 and the spacer sleeve 420, reducing the fatigue risk of the locking member 310 and the spacer sleeve 420, and prolonging the service life of the locking member 310 and the spacer sleeve 420; in addition, when the locking member 310 is in the locking position, the inner circumferential surface of the spacer sleeve 420 cooperates with the fourth contact surface 113 of the locking disc 110 to improve the reliability of the locking member 310 in the locking position. Figure 7 In the embodiment shown, the inner circumferential surface of the spacer sleeve 420 is circular, and the fifth contact surface 313 is configured as a partial circular arc, i.e., the center of curvature of the fifth contact surface 313 and the inner circumferential surface of the spacer sleeve 420 coincide. In this way, the contact area between the locking member 310 and the spacer sleeve 420 can be increased, thereby reducing the contact stress between the locking member 310 and the spacer sleeve 420, reducing the fatigue risk of the locking member 310 and the spacer sleeve 420, and prolonging the service life of the locking member 310 and the spacer sleeve 420; in addition, when the locking member 310 is in the locking position, the inner circumferential surface of the spacer sleeve 420 cooperates with the fourth contact surface 113 of the locking disc 110 to improve the reliability of the locking member 310 in the locking position.

[0058] Referring to Figures 2 to 4 As shown, in one of the embodiments, the elastic member 320 disposed between two adjacent locking members 310 includes a first abutting portion 321 and a second abutting portion 322, the first abutting portion 321 abuts against the outer circumferential surface of the locking disc 110 towards one side surface of the locking disc 110, and the second abutting portion 322 abuts against the outer circumferential surface of the locking member 310 towards one side surface of the locking member 310.

[0059] The elastic member 320 abuts against the outer circumferential surface of the locking disc 110 through the first abutting portion 321, and abuts against the outer circumferential surface of the locking member 310 through the second abutting portion 322, thereby increasing the contact area between the elastic member 320 and the locking disc 110 and between the elastic member 320 and the locking member 310, so that the locking disc 110 and the locking member 310 can play a good limiting role on the elastic member 320. In this way, not only can the possibility of the elastic member 320 moving during torque transmission be reduced, but also the elastic member 320 can be in more stable contact with the locking member 310, thereby making the elastic member 320 provide more stable pushing force to the locking member 310, and further improving the reliability of the locking member 310 in the locking position and the stability of the locking ability of the locking device.

[0060] As Figure 2 As shown, in some embodiments, a plurality of locking units and actuating portions 210 are provided, and the locking units and the actuating portions 210 are arranged alternately in the circumferential direction. By providing a plurality of locking units and actuating portions 210, the contact area between the locking units and the driven member 100 is increased, thereby improving the locking accuracy and use reliability of the locking device.

[0061] As Figure 2As shown, in one of the embodiments, one of the locking disc 110 and the driven shaft 120 is configured with the insertion post 112, and the other is configured with the insertion slot, the insertion post 112 is used for the insertion slot, so that the coaxiality of the driven shaft 120 and the locking disc 110 can be ensured, so that the locking device can withstand greater bending moment, thereby ensuring the stability of power transmission. In some embodiments, the insertion post 112 is opened on the locking disc 110, and the driven shaft 120 is configured with the insertion slot. It can be understood that the positions of the insertion post 112 and the insertion slot can also be interchanged.

[0062] In one of the embodiments, the first clamping part is located in the central region of the driving part 200, and the second clamping part 121 is located in the central region of the driven part 100. By arranging the first clamping part and the second clamping part 121 and the like in the central region of each component, the coaxiality of the driving part 200, the locking disc 110 and the driven shaft 120 can be ensured, not only the stability of torque transmission can be ensured, but also the torsional resistance of the locking device can be increased, when it is applied to the photovoltaic support, the torsional resistance of the photovoltaic support is increased, and the use reliability of the photovoltaic support is improved.

[0063] Referring to Figures 2 to 4 As shown, in one of the embodiments, the first abutting part 321 is a plane towards one side surface of the locking disc 110. The plane structure is relatively simple and easier to process; and when the contact surface is a plane, the pressure distribution is more uniform, which helps to prevent local stress concentration and prolong the service life of the component.

[0064] Referring to Figures 2 to 4 As shown, in one of the embodiments, the first abutting part 321 is an arc surface towards one side surface of the locking disc 110. Since there may be a small amount of relative movement between the locking disc 110 and the elastic member 320, by designing the surface of the elastic member 320 towards the locking disc 110 as an arc surface, the friction can be significantly reduced; since the arc surface has a certain radius of curvature, therefore for the special-shaped locking disc 110, the elastic member 320 and the locking disc 110 can better abut and have a larger contact area. The arc surface of the first abutting part 321 and part of the outer circumferential surface of the locking disc 110 are in surface contact. For example, the arc surface shape of the first abutting part 321 can be consistent with the outer surface shape of the locking disc 110, and the centers of curvature of the first abutting part 321 and the locking disc 110 coincide, so that the first abutting part 321 can be fitted with the outer surface of the locking disc 110. In this way, the elastic member 320 and the locking disc 110 have a larger contact area, further improving the limiting effect of the locking disc 110 on the elastic member 320.

[0065] Referring to Figures 2 to 4As shown, in one of the embodiments, the second abutting portion 322 is arc-shaped towards the side surface of the locking piece 310. By setting the surface of the second abutting portion 322 towards the locking piece 310 as arc-shaped, it can better adapt to the locking piece 310, so that the locking piece 310 and the elastic piece 320 have a larger contact area, and the abutting effect of the two is improved.

[0066] Referring to Figures 2 to 4 As shown, in one of the embodiments, the arc surface of the second abutting portion 322 is in surface contact with the outer circumferential surface of the locking piece 310. That is, the arc surface of the second abutting portion 322 can be consistent with the shape of the outer surface of the locking piece 310. For example, when the locking piece 310 is cylindrical, the arc surface of the second abutting portion 322 is a circular arc, and the center of curvature coincides with that of the locking piece 310, so that the second abutting portion 322 can be fitted with the outer surface of the locking piece 310. In this way, the elastic piece 320 and the locking piece 310 have a larger contact area, and the abutting effect of the elastic piece 320 and the locking piece 310 is further improved, thereby improving the stability of the pushing force exerted by the elastic piece 320 on the locking piece 310 and ensuring the reliability of the locking piece 310 in the locking position.

[0067] Referring to Figures 2 to 4 As shown, in one of the embodiments, the two ends of the second abutting portion 322 are located on the two sides of the line connecting the geometric centers of the two adjacent locking pieces 310. As shown Figure 3 As shown, the line connecting the geometric centers of the two adjacent locking pieces 310 is shown by a dashed line. For the lower end of the second abutting portion 322, the angle between the force from the locking piece 310 and the direction of gravity is an acute angle, that is, the force acting on the lower end of the elastic piece 320 is downward. For the upper end of the second abutting portion 322, the angle between the force from the locking piece 310 and the direction opposite to the direction of gravity is an acute angle, that is, the force acting on the upper end of the elastic piece 320 is upward. Through this arrangement, the two ends of the second abutting portion 322 will be subjected to forces from different directions, and the two directions are approximately opposite, so as to limit the elastic piece 320 from different directions respectively, reduce the possibility of the elastic piece 320 from moving, improve the abutting effect of the elastic piece 320 and the locking piece 310, and further ensure the reliability of the locking piece 310 in the locking position.

[0068] Referring to Figures 2 to 4 As shown, in one of the embodiments, a transition portion 323 is arranged between the first abutting portion 321 and the second abutting portion 322, and the transition portion 323 is arranged in the accommodating space 111 surrounded by the locking piece 310 and the locking disc 110. By arranging the transition portion 323 of the elastic piece 320 in the accommodating space 111 surrounded by the locking piece 310 and the locking disc 110, the locking piece 310 and the locking disc 110 further limit the elastic piece 320, and reduce the possibility of displacement of the locking piece 310.

[0069] Referring to Figures 2 to 4 As shown in the drawings, in one embodiment, the second abutting portion 322 includes two, and the two second abutting portions 322 are arranged along the circumference of the driving member 200, and each second abutting portion 322 abuts against the corresponding side of the locking member 310. That is, the elastic member 320 is an axisymmetric structure, and through such an arrangement, the locking force received by the locking members 310 on both sides is consistent, and the force distribution of the elastic member 320 is more uniform, reducing the risk of failure caused by excessive local stress.

[0070] Referring to Figures 2 to 4 As shown in the drawings, in one embodiment, the at least one second abutting portion 322 is provided with a limiting portion 324 bent towards the other second abutting portion 322, and the limiting portion 324 and the other second abutting portion 322 have a gap therebetween. By providing a bent portion, for example, when the right elastic member 320 is compressed, it is stopped by the bent portion at a certain position and cannot move further, and the compression stroke of the elastic member 320 is limited. By limiting the stroke of the elastic member 320, the possibility of generating an excessive stroke when the locking member 310 switches between the locked position and the unlocked position is reduced, thereby reducing the risk of excessive stroke causing impact and vibration of the locking member 310. In this way, the movement gap between the two locking members 310 is strictly controlled, which will greatly improve the vibration and impact phenomenon caused by the excessive movement of the locking member 310.

[0071] Further, an embodiment of the present application also provides a photovoltaic support (not shown in the drawings) comprising a plurality of main shafts and a locking device as above connected between adjacent two main shafts. When the locking device is applied to the photovoltaic support, the driving member 200 and the input main shaft of the photovoltaic support can be connected through fasteners such as screws and the like, and the driven member 100 and the output main shaft of the photovoltaic support are connected, so that it is not necessary to set a bearing assembly or the like between the input main shaft and the output main shaft to achieve power transmission. It can be understood that the photovoltaic support also includes a driving system, and the input main shaft is connected to the output end of the driving system.

[0072] When the photovoltaic support is in normal operation, the rotating power of the driving system is transmitted to the output main shaft through the input main shaft and the lock, so that the input main shaft and the output main shaft are synchronously rotated, and the consistency of the orientations of the plurality of photovoltaic modules mounted on the input main shaft and the output main shaft is ensured, so as to ensure the photovoltaic power generation efficiency. When the wind load acts on the output main shaft, the elastic member 320 applies a pushing force to the locking member 310, so that the locking member 310 is always in the locked position, and then the torque is transmitted to the driving system through the input main shaft, so as to reduce the risk of affecting the use reliability of the driving system, improve the torsional performance of the photovoltaic support, and then ensure the photovoltaic power generation rate. Through the cooperation of the lock and the driving system, the torque holding points of the photovoltaic support are increased from one to multiple, so that the wind resistance of the entire photovoltaic support is significantly improved.

[0073] The technical features of the above embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present disclosure.

[0074] The above embodiments only express several implementation manners of the present application, and the description is specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A lock applied to a photovoltaic support, characterized in that, The locking device comprises: a driven member (100) comprising a locking disc (110) and a driven shaft (120) connected to the locking disc (110); a driving member (200) provided with at least two poking portions (210) spaced along the circumferential direction of the driving member (200); and a locking unit arranged between two adjacent poking portions (210); the locking unit comprises at least two locking members (310) and an elastic member (320) connected between two adjacent locking members (310); the elastic member (320) is used to drive the locking members (310) to be in a locking position, so that the locking members (310) in the locking position block the rotation of the driven member (100) relative to the locking members (310) along the circumferential direction. The poking portion (210) is provided with a first contact surface (211), the locking member (310) is provided with a second contact surface (311), and the poking portion (210) is configured to be operatively rotated so that the first contact surface (211) abuts against the second contact surface (311) to drive the locking member (310) to perform a circumferential motion, wherein the first contact surface (211) and the second contact surface (311) are in surface contact.

2. The lock-up clutch according to claim 1, characterized by The first contact surface (211) and the second contact surface (311) are both arc surfaces, and the centers of curvature of the two arc surfaces coincide.

3. The lock as defined in claim 2, wherein The line connecting the geometric center of the first contact surface (211) and the geometric center of the adjacent locking member (310) is parallel to the tangent direction of the locking member (310).

4. The lock according to claim 1, wherein The first contact surface (211) and the second contact surface (311) are both planar surfaces.

5. The lock as defined in claim 4, wherein The locking member (310) is provided with a third contact surface (312), and the locking disc (110) is provided with a fourth contact surface (113). When the locking member (310) is in the locking position, the third contact surface (312) abuts against the fourth contact surface (113).

6. The lock as defined in claim 5, wherein The third contact surface (312) and the fourth contact surface (113) are both arc surfaces, and the third contact surface (312) is in surface contact with the fourth contact surface (113).

7. The detent according to any one of claims 1 to 6, characterized in that The locking device comprises a spacer sleeve (420), and the driving member (200), the driven member (100) and the locking member (310) are all rotationally connected to the spacer sleeve (420).

8. The lock as defined in claim 7, wherein The locking member (310) is provided with a fifth contact surface (313), and when the locking member (310) is in the locking position, the fifth contact surface (313) abuts against the inner circumferential surface of the spacer sleeve (420), and the fifth contact surface (313) is in surface contact with part of the inner circumferential surface of the spacer sleeve (420).

9. The detent of claim 7, wherein, The outer circumferential surface of the spacer sleeve (420) is provided with anti-skid lines; and / or, First inner and outer raceways are respectively machined on the inner circumferential surface of the spacer sleeve (420) and the outer circumferential surface of the driving member (200), and a first rolling body is rotationally connected between the first inner and outer raceways; and / or, A second inner raceway and a second outer raceway are respectively machined on the inner peripheral surface of the spacer sleeve (420) and the outer peripheral surface of the driven member (100), and a second rolling element is rotatably connected between the second inner raceway and the second outer raceway.

10. A photovoltaic mount, characterized by, The locking device comprises a plurality of main shafts and a plurality of locking devices as claimed in any one of claims 1 to 9 connected between adjacent two of the main shafts.

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