Locking device and photovoltaic support

Abstract

The utility model relates to a locking device and a photovoltaic support. The locking device comprises a driving piece, a driven piece and a locking unit. The locking unit comprises a locking piece and an elastic piece connected between the two locking pieces. Thrust is applied to the locking piece through the elastic piece, so that the locking piece is located at the locking position all the time, and then the driven piece is limited to transmit torque to the driving piece. Meanwhile, the elastic piece abuts against the peripheral wall of the locking disc through the first abutting part and abuts against the peripheral wall of the locking piece through the second abutting part, so that the contact area between the elastic piece and the locking disc and the contact area between the elastic piece and the locking piece are increased, and the locking disc and the locking piece can play a good limiting role on the elastic piece. The possibility that the elastic piece moves in the torque transmission process can be reduced; in addition, the elastic piece can make more stable contact with the locking piece, so that the elastic piece provides more stable thrust for the locking piece, the reliability of the locking piece in the locking position is improved, and the stability of the locking capacity 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 and a photovoltaic support. BACKGROUND

[0002] In the field of photovoltaic tracking support, the mainstream tracking support structure is a flat single-axis system. The main shaft is driven to rotate by a driving system to track the azimuthal change of the sun, so that the light-receiving surface of the photovoltaic module can receive the maximum amount of solar radiation, thereby increasing the power generation.

[0003] Taking a single-point driving system as an example, the main shaft is driven to rotate by a driving system. Therefore, the self-locking capability of the entire tracking support needs to rely on the driving motor and the speed reducer to realize. In order to improve the self-locking capability, a lock is generally arranged between the two main shafts. The lock realizes torque transmission from the input main shaft to the output main shaft in the adjacent two main shafts, and limits the output main shaft from transmitting torque to the input main shaft.

[0004] In the related art, the locking capability of the lock is unstable. UTILITY MODEL CONTENT

[0005] Therefore, it is necessary to provide a lock to solve the problem of unstable locking capability of the existing lock.

[0006] A lock, comprising:

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

[0008] a driving part provided with at least two poking parts spaced along the circumferential direction of the driving part;

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

[0010] wherein the elastic part comprises a first abutting part and a second abutting part, the first abutting part abuts against the outer circumferential wall of the locking disc towards one side surface of the locking disc, and the second abutting part abuts against the outer circumferential wall of the locking part towards one side surface of the locking part.

[0011] In one embodiment, the first abutting part towards one side surface of the locking disc is a plane.

[0012] In one embodiment, the surface of the first abutment portion facing the locking disc is an arc surface, and the arc surface of the first abutment portion is adapted to the outer peripheral wall of the locking disc.

[0013] In one embodiment, the surface of the second abutment portion facing the locking member is an arc surface.

[0014] In one embodiment, the arcuate surface of the second abutment portion is adapted to the outer peripheral wall of the locking member.

[0015] In one embodiment, the two ends of the second abutment are located on both sides of the line connecting the geometric centers of two adjacent locking members.

[0016] In one embodiment, a transition portion is provided between the first abutting portion and the second abutting portion, the transition portion passing through the receiving space enclosed by the locking member and the locking disc.

[0017] In one embodiment, the second abutment includes two parts, which are arranged circumferentially along the active member, and each second abutment abuts against the locking member on the corresponding side.

[0018] In one embodiment, at least one of the second abutting portions is provided with a limiting portion that bends toward another second abutting portion, and there is a gap between the limiting portion and the other second abutting portion.

[0019] A photovoltaic support includes a plurality of spindles and a locking device as described above connected between two adjacent spindles.

[0020] The aforementioned locking device applies a thrust to the locking member through an elastic element, ensuring that the locking member is always in the locked position, thereby restricting the driven member from transmitting torque to the driving member. Simultaneously, the elastic element abuts against the outer peripheral wall of the locking disc through its first abutment portion and against the outer peripheral wall of the locking member through its second abutment portion, thus increasing the contact area between the elastic element and the locking disc and locking member. This reduces the possibility of the elastic element shifting during torque transmission and provides a relatively stable thrust to the locking member, thereby improving the reliability of the locking member in the locked position and enhancing the stability of the locking device's locking capability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a locking device provided in one embodiment of this application.

[0022] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the locking device.

[0023] Figure 3 forFigure 2 Partial enlarged view of A in the lock shown.

[0024] Figure 4 The lock provided by another embodiment of the present application is shown in a cross-sectional view. Figure 3 Schematic view of the elastic member in the lock shown.

[0025] Figure 5 The lock provided by another embodiment of the present application is shown in a cross-sectional view.

[0026] Figure 6 The lock provided by another embodiment of the present application is shown in a cross-sectional view. Figure 5 Partial enlarged view of B in the lock shown.

[0027] Figure 7 The lock provided by another embodiment of the present application is shown in a cross-sectional view. Figure 6 Schematic view of the elastic member in the lock shown.

[0028] 100, driven member; 110, lock disc; 111, accommodating space; 112, plug-in post; 120, driven shaft; 121, second clamping portion;

[0029] 200, driving member; 210, actuating portion;

[0030] 310, locking member; 320, elastic member; 321, first abutting portion; 322, second abutting portion; 323, transition portion; 324, limiting portion;

[0031] 410, mounting seat; 411, housing; 412, mounting leg; 420, spacer sleeve. DETAILED DESCRIPTION

[0032] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many different ways other than those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0033] In the description of the application, it should be understood that, if there are these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, 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 application and simplifying the description, and do not indicate or imply 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 a limitation on the application.

[0034] In addition, if there are these terms "first", "second", 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 technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0035] In this application, unless otherwise explicitly specified and limited, if there are terms such as "mounting", "connecting", "connecting", "fixing" and the like, these terms should be broadly understood. 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 explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0036] In this application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "first feature on or under second feature", the meaning can be 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 "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0037] It is to be noted that when an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar terms as used herein only mean for the purpose of illustration and are not meant to be limiting.

[0038] Referring to Figures 1 to 4 As shown in the drawings, the locking device provided by an embodiment of the present application is applied to a photovoltaic support, and the locking device is used to connect two adjacent main shafts. The locking device comprises a driving element 200, a driven element 100 and a locking unit. The driving element 200 is used to connect an input main shaft of the two adjacent main shafts. The driven element 100 is used to connect an output main shaft of the two adjacent main shafts. The driven element 100 comprises a locking disc 110 and a driven shaft 120 connected to the locking disc 110. The driving element 200 is provided with at least two push portions 210 spaced along the circumferential direction of the driving element 200. The locking unit is arranged between the two adjacent push portions 210. The locking unit comprises at least two locking elements 310 and an elastic element 320 connected between the two adjacent locking elements 310. The elastic element 320 is used to drive the locking elements 310 to be in a locking position, so that the locking elements 310 in the locking position block the driven element 100 from rotating relative to the locking elements 310 in the circumferential direction. The elastic element 320 comprises a first abutting portion 321 and a second abutting portion 322. The first abutting portion 321 abuts against the outer circumferential wall of the locking disc 110 from the side surface of the locking disc 110. The second abutting portion 322 abuts against the outer circumferential wall of the locking element 310 from the side surface of the locking element 310.

[0039] Understandably, the driving element 200 is provided with a first clamping portion (not shown in the drawings), the driven element 100 is provided with a second clamping portion 121, the first clamping portion is inserted into 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 element 200 to drive the driving element 200 to rotate, the driving element 200 pushes the locking elements 310 to deviate from the locking position through the push portions 210 until the outer circumferential wall of the first clamping portion abuts against the second clamping portion 121, so as to drive the driven element 100 to rotate and transmit the rotary power to the output main shaft connected to the driven element 100, realize the synchronous rotation of the plurality of main shafts, and further ensure the orientation consistency of the plurality of photovoltaic modules and the photovoltaic power generation rate.

[0040] When the wind load acts on the output main shaft, the output main shaft will produce torsional deformation and drive the driven part 100 to produce a small amount of movement. Even if the driven part 100 produces a small amount of movement, it will drive the locking part 310 to produce a small amount of movement. However, since the elastic part 320 is arranged between the adjacent locking parts 310, under the action of the elastic part 320, the locking part 310 will quickly return to the locking position, so that the driven part 100 cannot continue to rotate relative to the locking part 310, and the second clamping part 121 cannot abut against the first clamping part. Therefore, the torque of the output main shaft cannot be transmitted to the input main shaft connected with the driving part 200, and the torque is blocked at the locking device, thereby reducing the possibility of damage caused by the torsion of the input main shaft, improving the torsion resistance and service life of the photovoltaic support, and thereby ensuring the photovoltaic power generation rate.

[0041] As shown in Figure 2 In an embodiment, each locking unit includes two locking parts 310, for example, two locking parts 310 are arranged between the two driving parts 210 to cooperate with them. One of the two locking parts 310 is used to limit the clockwise rotation of the driven part 100, and the other locking part 310 is used to limit the counterclockwise rotation of the driven part 100. In this way, the locking of two directions can be realized by two locking parts 310 respectively, thereby improving the use reliability of the locking device. By cooperating with 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. It can be understood that in other embodiments, the number of locking parts 310 in each locking unit can also be greater than two, that is, the number of locking parts 310 is 2N, where N is a positive integer, which can be set according to actual needs.

[0042] It can be understood that during the process that the driving part 200 continues to rotate until the first clamping part and the second clamping part 121 abut against each other, the locking part 310 is farther and farther away from the locking position, and correspondingly, the compression amount of the elastic part 320 gradually increases, and the compression amount is less than the maximum compression amount of the elastic part 320, thereby ensuring the use reliability of the elastic part 320 in the subsequent process.

[0043] The elastic member 320 abuts against the outer circumferential wall of the locking disc 110 through the first abutting portion 321 and abuts against the outer circumferential wall of the locking member 310 through the second abutting portion 322, thereby increasing the contact area of the elastic member 320 with the locking disc 110 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, so that the elastic member 320 provides more stable pushing force for the locking member 310, thereby improving the reliability of the locking member 310 in the locking position and the stability of the locking ability of the locking device. In an embodiment, the elastic member 320 can be a leaf spring, the actuating 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] As shown in Figure 2 In some embodiments, the locking units and the actuating portions 210 are provided in plurality and are arranged alternately in the circumferential direction. By providing a plurality of locking units and actuating portions 210, the contact area of the locking units and the driven member 100 is increased, thereby improving the locking precision and the use reliability of the locking device.

[0045] As shown in Figure 2 In one of the embodiments, one of the locking disc 110 and the driven shaft 120 is configured with the insertion column 112, and the other is configured with the insertion groove. The insertion column 112 is used for insertion fitting with the clamping groove. In this way, the coaxiality of the driven shaft 120 and the locking disc 110 can be ensured, so that the locking device can withstand a larger bending moment, thereby ensuring the stability of power transmission. In some embodiments, the insertion column 112 is provided on the locking disc 110, and the driven shaft 120 is configured with the insertion groove. It can be understood that the positions of the insertion column 112 and the insertion groove can also be interchanged.

[0046] In one of the embodiments, the first clamping portion is located in the central region of the driving member 200, and the second clamping portion 121 is located in the central region of the driven member 100. By arranging the first clamping portion and the second clamping portion 121 and other cooperating structures in the central regions of the components, the coaxiality of the driving member 200, the locking disc 110 and the driven shaft 120 is ensured, which not only can ensure the stability of torque transmission, but also can increase the torsional resistance of the locking device. When the locking device is applied to the photovoltaic support, the torsional resistance of the photovoltaic support is increased, thereby improving the use reliability of the photovoltaic support.

[0047] Referring to Figures 2 to 4As shown, in one embodiment, the first abutting portion 321 is a plane towards one side surface of the locking disc 110. The plane structure is relatively simple and easy 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.

[0048] Referring to Figures 2 to 4 As shown, in one embodiment, the first abutting portion 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 portion 321 is adapted to the outer peripheral wall of the locking disc 110. That is, the arc surface shape of the first abutting portion 321 can be consistent with the shape of the outer surface of the locking disc 110, and the centers of curvature of the first abutting portion 321 and the locking disc 110 coincide, so that the first abutting portion 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.

[0049] Referring to Figures 2 to 4 As shown, in one embodiment, the second abutting portion 322 is an arc surface towards one side surface of the locking member 310. By setting the surface of the second abutting portion 322 towards the locking member 310 as an arc surface, it can better adapt to the locking member 310, so that the locking member 310 and the elastic member 320 have a larger contact area, improving the abutting effect between them.

[0050] Referring to Figures 2 to 4 As shown, in one embodiment, the arc surface of the second abutting portion 322 is adapted to the outer peripheral wall of the locking member 310. That is, the arc surface shape of the second abutting portion 322 can be consistent with the shape of the outer surface of the locking member 310, for example, the locking member 310 is cylindrical, the arc surface of the second abutting portion 322 is a circular arc, and the centers of curvature coincide with the locking member 310, so that the second abutting portion 322 can be fitted with the outer surface of the locking member 310. In this way, the elastic member 320 and the locking member 310 have a larger contact area, further improving the abutting effect between the elastic member 320 and the locking member 310, thereby improving the stability of the pushing force exerted by the elastic member 320 on the locking member 310, and ensuring the reliability of the locking member 310 in the locking position.

[0051] Referring to Figures 2 to 4As shown, in one of the embodiments, the two ends of the second abutting portion 322 are respectively located on the two sides of the line connecting the geometric centers of the two adjacent locking members 310. As shown Figure 3 As shown, the line connecting the geometric centers of the two adjacent locking members 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 member 310 and the direction of gravity is an acute angle, that is, the force on the lower end of the elastic member 320 is downward. For the upper end of the second abutting portion 322, the angle between the force from the locking member 310 and the direction opposite to the direction of gravity is an acute angle, that is, the force on the upper end of the elastic member 320 is upward. Through such a design, 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 member 320 from different directions, reduce the possibility of the elastic member 320 from shifting, improve the abutting effect of the elastic member 320 and the locking member 310, and further ensure the reliability of the locking member 310 in the locking position.

[0052] 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 member 310 and the locking disc 110. By arranging the transition portion 323 of the elastic member 320 in the accommodating space 111 surrounded by the locking member 310 and the locking disc 110, the locking member 310 and the locking disc 110 further limit the elastic member 320, reducing the possibility of displacement of the locking member 310.

[0053] Referring to Figures 2 to 4 As shown, in one of the embodiments, 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 locking member 310. That is, the elastic member 320 is an axisymmetric structure, and through such a design, 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.

[0054] Referring to Figures 5 to 7As shown, in one embodiment, at least one second abutment portion 322 is provided with a limiting portion that bends toward another second abutment portion 322, and there is a gap between the limiting portion and the other second abutment portion 322. By providing the limiting portion 324, for example, when the right elastic member 320 is compressed, it is compressed to a certain position and stopped by the limiting portion 324, preventing further movement, thus limiting the compression stroke of the elastic member 320. By limiting the stroke of the elastic member 320, the possibility of the locking member 310 having an excessive stroke when switching between the locked and unlocked positions is reduced, thereby reducing the risk of the locking member 310 experiencing impact vibration due to excessive stroke. 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 excessive movement of the locking member 310.

[0055] like Figure 1 and Figure 2 As shown, in some embodiments, the locking device includes a mounting base 410, with the driving member 200 and the driven member 100 rotatably disposed within the mounting base 410. The mounting base 410 supports the driving member 200 and the driven member 100, improving their 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. Both the housing 411 and the two mounting legs 412 are forged to improve strength and hardness. In some embodiments, the housing 411 and the two mounting legs 412 are separate components, secured by fasteners such as screws to improve strength. In other embodiments, the housing 411 and the mounting base 410 may also be integrally formed.

[0056] like Figure 1 and Figure 2As shown, in some embodiments, the lock includes a spacer 420 sleeved in the mounting seat 410, and the locking member 310, the actuating portion 210, etc. are connected to the spacer 420. By providing the spacer 420, on the one hand, a sealing effect is achieved, and on the other hand, a mounting and fixing effect is achieved, so that the locking member 310 and other components are not easy to slide out, and the use reliability of the lock is improved. In some embodiments, the outer peripheral wall of the spacer 420 is processed with anti-skid lines (not shown in the figure), and by providing the anti-skid lines, the friction coefficient between the outer ring of the spacer 420 and the inner wall of the mounting seat 410 is increased, so that the spacer can withstand greater holding force. In some embodiments, the inner wall of the spacer 420 and the outer wall of the driving member 200 are respectively processed with an inner raceway (not shown in the figure) and an outer raceway (not shown in the figure), and a plurality of steel balls (not shown in the figure) are arranged between the inner raceway and the outer raceway, and when the driving member 200 rotates relative to the spacer 420, the steel balls roll synchronously, thereby reducing the friction force of the driving member 200 rotating relative to the spacer 420. In some embodiments, the inner wall of the spacer 420 and the outer wall of the driven member 100 are respectively processed with an inner raceway (not shown in the figure) and an outer raceway (not shown in the figure), and a plurality of steel balls (not shown in the figure) are arranged between the inner raceway and the outer raceway, and when the driven member 100 rotates relative to the spacer 420, the steel balls roll synchronously, thereby reducing the friction force of the driven member 100 rotating relative to the spacer 420.

[0057] Further, an embodiment of the present application also provides a photovoltaic support (not shown in the figure) comprising a plurality of main shafts and a lock as described above connected between two adjacent main shafts. When the lock is applied to the photovoltaic support, the driving member is connected to the input main shaft of the photovoltaic support through a fastener such as a screw, and the driven member is connected to the output main shaft of the photovoltaic support, so that it is not necessary to arrange a bearing assembly between the input main shaft and the output main shaft to achieve power transmission. Understandably, the photovoltaic support also comprises a driving system, and the input main shaft is connected to the output end of the driving system.

[0058] When the photovoltaic support is normally operated, 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 orientation consistency of a plurality of photovoltaic modules mounted on the input main shaft and the output main shaft is ensured, and the photovoltaic power generation efficiency is ensured. When the wind load acts on the output main shaft, the elastic member applies a pushing force to the locking member, so that the locking member is always in the locked position, and the driven member is limited to transmit the torque to the driving member, the torque is blocked at the lock, and the risk of the torque being transmitted to the driving system through the input main shaft to affect the use reliability of the driving system is reduced, the torsional resistance of the photovoltaic support is improved, and the photovoltaic power generation rate is ensured. Through the cooperation of the lock 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.

[0059] Any technical features in the above embodiments can be combined, and for the sake of brevity, not all possible combinations are described above, however, as long as the combinations do not conflict with each other, they should be considered to be within the scope of the present disclosure.

[0060] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A lock, 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 driving portions (210) spaced along the circumferential direction of the driving member (200); and a locking unit arranged between two adjacent driving portions (210); the locking unit comprises at least two locking members (310) and an elastic member (320) connected between the two adjacent locking members (310); the elastic member (320) is used to drive the locking members (310) to 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 elastic member (320) comprises a first abutting portion (321) and a second abutting portion (322); the first abutting portion (321) abuts against the outer circumferential wall 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 wall of the locking member (310) towards one side surface of the locking member (310).

2. The lock-up clutch according to claim 1, characterized by The first abutting portion (321) towards one side surface of the locking disc (110) is a plane.

3. The detent of claim 1, wherein, The first abutting portion (321) towards one side surface of the locking disc (110) is an arc surface, and the arc surface of the first abutting portion (321) is adapted to the outer circumferential wall of the locking disc (110).

4. The detent of claim 1, wherein, The second abutting portion (322) towards one side surface of the locking member (310) is an arc surface.

5. The lock as defined in claim 4, wherein The arc surface of the second abutting portion (322) is adapted to the outer circumferential wall of the locking member (310).

6. The lock as defined in claim 5, wherein The two ends of the second abutting portion (322) are respectively located on the two sides of the line connecting the geometric centers of the two adjacent locking members (310).

7. The detent according to any one of claims 1 to 6, characterized in that 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 member (310) and the locking disc (110).

8. The detent according to any one of claims 1 to 6, characterized in that The second abutting portion (322) comprises two second abutting portions (322) arranged along the circumferential direction of the driving member (200); each second abutting portion (322) abuts against the corresponding locking member (310).

9. The lock as defined in claim 8, wherein At least one second abutting portion (322) is provided with a limiting portion (324) bent towards another second abutting portion (322), and the limiting portion (324) has a gap with another second abutting portion (322).

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 main shafts.

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