Locking device and photovoltaic tracking support

Abstract

The utility model relates to a locking device and a photovoltaic tracking support, and the locking device comprises a box body which is provided with a rotation axis; at least part of the driving assembly is located in the box body, and a first clamping part and a shifting part are arranged on the driving assembly; the driven assembly is arranged on one side of the driving assembly along the rotating axis, and at least part of the driven assembly is located in the box body; the locking mechanism is arranged in the box body and fixedly connected with the driven assembly, a second clamping part is arranged on the locking mechanism, and the second clamping part is in clearance connection with the first clamping part; the locking mechanism comprises a first locking component and a second locking component which are sequentially arranged along the rotating axis. According to the locking mechanism, through the mode that the first locking component and the second locking component are independently arranged, the problem that parts in a traditional locking mechanism interfere with each other can be effectively solved, the effectiveness of the locking mechanism in the using process is guaranteed, and the service life of the locking mechanism can be effectively prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic support, in particular to a locking device and a photovoltaic tracking support. BACKGROUND

[0002] The mainstream solutions of photovoltaic tracking support in the market at present include single-point driving and multi-point driving. The single-point driving drives the main shaft to rotate by one drive, and the main shaft is connected with the stand column through bearings and a base. The multi-point driving drives the main shaft to rotate by multiple drives, and the main shaft is connected with the stand column through bearings and a base.

[0003] The self-locking capability of the whole photovoltaic tracking support system is only realized by the motor and the speed reducer. When extreme weather such as strong wind is encountered, or the length of the tracking support changes in the future, the self-locking capability of the single-point driving may be insufficient, which undoubtedly increases the risk of failure of the whole photovoltaic tracking support system. The multi-point driving system can effectively lock due to the large number of driving points, but the cost is high, and it is difficult to balance the safety and cost of the photovoltaic tracking support system.

[0004] In the related art, a locking mechanism is arranged between adjacent main shafts to block the torque on the passive main shaft at the locking mechanism. The locking mechanism mainly includes a locking disc and at least two rollers and springs arranged on the side of the locking disc, and the springs are arranged between the two rollers to keep the two rollers in a bidirectional locking state at all times through the extrusion of the springs.

[0005] However, the photovoltaic tracking support using the above locking mechanism is prone to mutual interference of internal parts (such as between the two adjacent rollers), thereby affecting the normal use of the locking mechanism. Utility model content

[0006] Therefore, it is necessary to provide a locking device and a photovoltaic tracking support in view of the problem that the traditional locking mechanism is prone to mutual interference of internal parts.

[0007] The embodiment of the present application first provides a locking device, which comprises:

[0008] a box body having a rotation axis;

[0009] a driving assembly at least partially located in the box body, and the driving assembly is provided with a first clamping part and a pushing part;

[0010] a driven assembly arranged on one side of the driving assembly along the rotation axis and at least partially located in the box body;

[0011] a locking mechanism arranged in the box body and fixedly connected with the driven assembly, the locking mechanism is provided with a second clamping part, and the second clamping part is connected with the first clamping part in a clearance fit;

[0012] The locking mechanism comprises a first locking component and a second locking component arranged along the rotation axis in sequence; when the driven assembly is subjected to an external force, the poking portion acts on the first locking component or the second locking component, so that the second locking component or the first locking component abuts against the box body, realizing bidirectional locking of the driven assembly.

[0013] In one of the embodiments, the locking mechanism further comprises a locking disc, one end surface of the locking disc is fixedly connected with the driven assembly, and the other end surface is provided with the second clamping portion; the first locking component and the second locking component are arranged on the outer circumferential surface of the locking disc, and the locking directions of the first locking component and the second locking component on the driven assembly are opposite.

[0014] In one of the embodiments, the first locking component comprises a first stop portion, a first locking piece and a first elastic piece, the first stop portion is arranged on the outer periphery of the locking disc, and the first elastic piece is located between the first stop portion and the first locking piece;

[0015] The second locking component comprises a second stop portion, a second locking piece and a second elastic piece, the second stop portion is arranged on the outer periphery of the locking disc, and the second elastic piece is located between the second stop portion and the second locking piece;

[0016] The locking directions of the first stop portion on the first locking piece and the second stop portion on the second locking piece are opposite.

[0017] In one of the embodiments, the poking portion is located between the locking mechanism and the box body, and the first locking piece and the second locking piece are respectively located on two sides of the poking portion;

[0018] The driven assembly is configured to be passively responsive to rotation, the locking disc rotates by a preset angle relative to the driving assembly, the poking portion moves towards the first elastic piece and pokes the first locking piece to the release position, and the second locking piece is located in the locking position under the elastic force of the second elastic piece to block the rotation of the driven assembly relative to the second locking piece around the rotation axis;

[0019] The driving assembly is configured to be operable to rotate, the first locking piece is driven to the release position by the poking portion until the first clamping portion and the second clamping portion abut to drive the driven assembly to rotate; wherein the second locking piece is in the release position under the relative rotation of the locking disc and the box body.

[0020] In one of the embodiments, the first stop portion comprises a first bearing surface and a first stop surface, the first locking member is located between the first bearing surface and the box body, one end of the first elastic member is limited to the first stop surface, and the other end is limited to the first locking member.

[0021] The second stop portion comprises a second bearing surface and a second stop surface, the second locking member is located between the second bearing surface and the box body, one end of the second elastic member is limited to the second stop surface, and the other end is limited to the second locking member.

[0022] In one of the embodiments, along the circumference of the locking disc, the distance between the first bearing surface and the box body gradually increases or gradually decreases, and the distance between the second bearing surface and the box body gradually decreases or gradually increases.

[0023] In one of the embodiments, the driven assembly comprises a driven shaft, and the driven shaft is fixedly connected with an end surface of the locking disc.

[0024] The driving assembly comprises a driving shaft, and the driving shaft is provided with the first clamping portion towards the end surface of the locking disc, and the pushing portion is arranged at the edge of the driving shaft.

[0025] In one of the embodiments, the first clamping portion comprises a plurality of limiting grooves formed in the end surface of the driving shaft, the plurality of limiting grooves are distributed at intervals around the rotation axis, the second clamping portion comprises a plurality of transmission rods arranged on the end surface of the locking disc, and the plurality of transmission rods correspond to the plurality of limiting grooves one by one.

[0026] Alternatively, the first clamping portion comprises a plurality of transmission rods arranged on the end surface of the driving shaft, the plurality of transmission rods are distributed at intervals around the rotation axis, the second clamping portion comprises a plurality of limiting grooves formed in the end surface of the locking disc, and the plurality of transmission rods correspond to the plurality of limiting grooves one by one.

[0027] In one of the embodiments, the diameter of the transmission rod is smaller than the inner diameter of the limiting groove.

[0028] In one of the embodiments, the box body comprises a mounting seat and a spacer sleeve arranged in the mounting seat, and the locking mechanism is adapted to be arranged in the spacer sleeve.

[0029] The embodiments of the present application also provide a photovoltaic tracking support, which comprises a driving member, a first main shaft, a second main shaft and the locking device described in the above embodiments.

[0030] In the photovoltaic tracking support, one end of the first main shaft is connected with the driving member, the other end is connected with the driving assembly of the locking device, and the second main shaft is connected with the driven assembly of the locking device.

[0031] The locking device and the photovoltaic tracking support can realize the rotation of the driven assembly by the driving assembly by connecting the first clamping part and the second clamping part in a gap, when the driving assembly is driven to rotate by the external driving mechanism, and the driving assembly can rotate within a preset angle range relative to the driven assembly. During the rotation, the actuating part acts on the first locking part or the second locking part according to the rotation direction of the driving assembly, so that the locking mechanism is unlocked, thereby realizing the purpose of rotating the driven assembly by the driving assembly. When the power assembly is affected by external natural force, the driven assembly will produce a slight rotation relative to the driving assembly, so as to facilitate the actuating part to act on one of the first locking part and the second locking part during the rotation, so that the other one is in a locked state, and the driven assembly abuts against the box during the relative rotation trend of the driven assembly and the box, so that the torque of the driven assembly cannot be transmitted to the driving assembly, thereby realizing the locking of the driven assembly. By setting the driving assembly, the driven assembly and the locking mechanism with the first locking part and the second locking part, the bidirectional locking of the driven assembly can be realized, which not only can effectively prevent the problem of random rotation of the driven assembly due to external force, but also can effectively avoid the problem of mutual interference between parts in the traditional locking mechanism by the independent setting of the first locking part and the second locking part, thereby ensuring the effectiveness of the locking mechanism during use and effectively prolonging the service life of the locking mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 The overall structure schematic diagram of the locking device provided according to some embodiments of the present application is shown.

[0033] Figure 2 The structure schematic diagram of the locking device (without the mounting seat) provided according to some embodiments of the present application is shown.

[0034] Figure 3 The exploded structure schematic diagram of the locking device provided according to some embodiments of the present application is shown.

[0035] Figure 4 The cross-sectional structure schematic diagram of the locking device on the driven assembly side provided according to some embodiments of the present application is shown.

[0036] Figure 5 The cross-sectional structure schematic diagram of the first locking part on the driven assembly side provided according to some embodiments of the present application is shown.

[0037] Figure 6 The cross-sectional structure schematic diagram of the second locking part on the driven assembly side provided according to some embodiments of the present application is shown.

[0038] Figure 7 The structure schematic diagram of the locking mechanism provided according to some embodiments of the present application is shown.

[0039] Figure 8Structure diagram of the first stop portion and the second stop portion according to some embodiments of the present application.

[0040] Figure 9 Structure diagram of the second locking member and the second elastic member according to some embodiments of the present application.

[0041] Reference signs:

[0042] 10, box; 12, mounting seat; 11, spacer sleeve;

[0043] 20, driving assembly; 21, first clamping portion; 22, actuating portion;

[0044] 30, driven assembly;

[0045] 40, locking mechanism; 41, first locking component; 411, first stop portion; 4111, first bearing surface; 4112, first stop surface; 412, first locking member; 413, first elastic member; 42, second locking component; 421, second stop portion; 4211, second bearing surface; 4212, second stop surface; 422, second locking member; 423, second elastic member; 43, locking disc. DETAILED DESCRIPTION

[0046] 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 without departing from the scope of the present application, and it is understood that similar modifications can be made by those skilled in the art in the light of the teachings of the present application, so the present application is not limited to the following specific embodiments disclosed.

[0047] 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.

[0048] In addition, the terms "first", "second", and the like, if any, are used herein for descriptive purposes only and should not be construed as indicating or implying relative importance or implicating the number of indicated technical features. Thus, a feature defined with "first", "second" can include at least one of the features explicitly or implicitly. In the description of the present application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0049] In the present application, unless otherwise explicitly specified and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be interpreted broadly. 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 the present application can be understood according to the specific circumstances.

[0050] In the present application, unless otherwise explicitly specified and limited, if the first feature is described as "on" or "under" the second feature and the like, 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 "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or it can only mean that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or it can only mean that the first feature is lower than the second feature in horizontal height.

[0051] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not represent the only implementation.

[0052] As described in the background, the related art sets a locking mechanism between adjacent main shafts to block the torque on the passive main shaft at the locking mechanism. The locking mechanism mainly includes a locking disc and at least two rollers and springs arranged on the side of the locking disc, and the springs are arranged between the two rollers to keep the two rollers in a bidirectional locking state at all times by the extrusion of the springs. However, when the photovoltaic tracking support adopts the above locking mechanism, the two rollers on both ends of the spring occasionally interfere with each other, affecting the normal use of the locking mechanism. In addition, under some extreme fast working conditions, the roller on one side of the above locking mechanism will quickly impact the roller on the other side, which is easy to violently break the spring in the middle, causing the locking mechanism to fail.

[0053] Based on the above problems, the embodiments of the present application provide a locking device and a photovoltaic tracking support. By arranging a driving assembly, a driven assembly, and a locking mechanism with a first locking component and a second locking component, bidirectional locking of the driven assembly can be achieved. Not only can the problem of the driven assembly rotating at will due to external force be effectively prevented, but also the problem of mutual interference between parts in the traditional locking mechanism can be effectively avoided by the independent arrangement of the first locking component and the second locking component, ensuring the effectiveness of the locking mechanism during use and effectively improving the service life of the locking mechanism.

[0054] Reference Figures 1-3 , Figure 1 The overall structure schematic diagram of the locking device provided according to some embodiments of the present application. Figure 2 The structure schematic diagram of the locking device (without the mounting seat) provided according to some embodiments of the present application. Figure 3 The exploded structure schematic diagram of the locking device provided according to some embodiments of the present application. The embodiment of the present application first provides a locking device, which can include a box body 10, a driving assembly 20, a driven assembly 30, and a locking mechanism 40.

[0055] The box body 10 has a rotation axis; the driving assembly 20 is at least partially located in the box body 10, and the driving assembly 20 is provided with a first clamping part 21 and a pushing part 22; the driven assembly 30 is arranged on one side of the driving assembly 20 along the rotation axis and at least partially located in the box body 10; the locking mechanism 40 is arranged in the box body 10 and fixedly connected with the driven assembly 30, and the locking mechanism 40 is provided with a second clamping part, which is in clearance connection with the first clamping part 21; wherein the locking mechanism 40 includes a first locking component 41 and a second locking component 42 arranged in sequence along the rotation axis; when the driven assembly 30 is acted on by an external force, the pushing part 22 acts on the first locking component 41 or the second locking component 42 to make the second locking component 42 or the first locking component 41 abut against the box body 10, thereby achieving bidirectional locking of the driven assembly 30.

[0056] It can be understood that the box 10 in the example includes a hollow cylindrical structure, and the locking mechanism 40 is fitted in the hollow cylindrical structure. For the purpose of understanding the rotation direction of the driving assembly 20 and the driven assembly 30, and the position setting of the driving assembly 20, the locking mechanism 40 and the driven assembly 30, the central axis of the cylindrical structure is defined as the rotation axis in the example. In addition, the push part 22 in the example can be understood as a push rod, one end of which is fixed to the side of the driving assembly 20 facing the driven assembly 30, and the other end is located in the box 10, specifically at the outer periphery of the locking mechanism 40. The push rod can push the first locking part 41 or the second locking part 42 to make it in the unlocked state or the locked state.

[0057] Since the first clamping part 21 and the second clamping part are connected in a clearance fit, that is, the driving assembly 20 can drive the locking mechanism 40 to rotate only after rotating by a predetermined angle, and the driven assembly 30 is fixedly connected with the locking mechanism 40. In other words, the driving assembly 20 can be rigidly connected with the driven assembly 30 only after rotating by a predetermined angle, so as to achieve the purpose of driving the driven assembly 30 to rotate synchronously. The specific process is that, during the rotation of the driving assembly 20 within the predetermined angle range, the push part 22 can first act on the first locking part 41 or the second locking part 42 (the object of the push part 22 is different according to the rotation direction of the driving assembly 20), so as to unlock the locking mechanism 40. After unlocking, the driving assembly 20 can drive the driven assembly 30 to rotate.

[0058] Specifically, during the rotation of the driving assembly 20 driving the driven assembly 30, the first locking part 41 will continuously be in the unlocked state under the pushing of the push part 22, and the second locking part 42 will be forced to be in the unlocked state during the relative rotation of the driven assembly 30 and the box 10.

[0059] When the driven assembly 30 is subjected to an external force (usually natural wind force), the wind force will drive the driven assembly 30 to produce a slight movement, and the driven assembly 30 will drive the locking mechanism 40 to produce a slight rotation. In this process, the locking mechanism 40 and the actuating portion 22 produce relative rotation. For example, the actuating portion 22 acts on the first locking component 41, so that the second locking component 42 is in a locked state. The second locking component 42 is in a locked state during the relative rotation of the driven assembly 30 and the box body 10. That is, the second locking component 42 continuously abuts the box body 10 during this process. Therefore, the torque of the driven assembly 30 (locking mechanism) cannot be transmitted to the driving assembly 20 connected thereto. The torque is blocked at the locking mechanism 40, achieving the locking of the driven assembly 30. Of course, the abutment of the first locking component 41 and the box body 10 to achieve the locking of the driven assembly 30, or the abutment of the second locking component 42 and the box body 10 to achieve the locking of the driven assembly 30, is related to the rotation of the driven assembly 30 in different directions. For a specific understanding, please refer to the following content.

[0060] The clearance fit between the first clamping portion 21 and the second clamping portion can be that the first clamping portion 21 is a rectangular block, the second clamping portion is a rectangular slot, and the radial dimension of the rectangular block is smaller than the radial dimension of the rectangular slot. When the driving assembly 20 is driven by the driving mechanism, it needs to be rotated by a predetermined angle first to eliminate the clearance between the rectangular block and the rectangular slot, and then the rectangular block and the rectangular slot abut in the radial direction. Of course, another purpose of this process is to make the actuating portion 22 provided on the driving assembly 20 act on the first locking component 41 or the second locking component 42, so that the corresponding locking component is unlocked. It should be understood that the rectangular block is arranged at the center of the driving assembly 20, and the rectangular block is also arranged at the center of the locking mechanism 40, so as to facilitate the transmission of torque from the driving assembly 20 to the locking mechanism 40.

[0061] It can be understood that the structure of the first clamping portion 21 and the second clamping portion can also be a plurality of pin shafts and corresponding pin holes arranged around the rotation axis. In order to achieve the clearance connection between the two, the outer diameter of the pin shaft needs to be smaller than the hole diameter of the pin hole. The specific setting mode can be understood by referring to the following examples, which will not be described here.

[0062] The first locking component 41 and the second locking component 42 of the locking mechanism 40 in the example can be understood as a conventional one-way locking mechanism 40, but the one-way locking directions of the two are opposite, and the main body of the first locking component 41 and the main body of the second locking component 42 can be manufactured separately and then fastened and connected by welding, bolts or the like; of course, they can also be integrally formed and manufactured, which not only can enhance the fastening between the two, but also can reduce the connection process and connecting parts, and improve the manufacturing efficiency. The independent arrangement of the first locking component 41 and the second locking component 42 can effectively avoid the problem of mutual interference between parts in the traditional locking mechanism 40, and effectively improve the service life of the locking mechanism 40.

[0063] In the present application, by connecting the first clamping part 21 and the second clamping part 22, when the driving assembly 20 is driven to rotate by the external driving mechanism, it can rotate within a predetermined angle range relative to the driven assembly 30. In the rotating process, the actuating part 22 will act on the first locking component 41 or the second locking component 42 according to the rotating direction of the driving assembly 20, so that the locking mechanism 40 is unlocked, thereby realizing the purpose of the driving assembly 20 driving the driven assembly 30 to rotate; when the power assembly is subjected to external natural force, the driven assembly 30 will produce a slight rotation relative to the driving assembly 20, so as to facilitate the actuating part 22 to act on one of the first locking component 41 and the second locking component 42 in the rotating process, so that the other one is in a locked state, and abuts against the box body 10 in the relative rotating trend of the driven assembly 30 and the box body 10, so that the torque of the driven assembly 30 cannot be transmitted to the driving assembly 20, thereby realizing the locking of the driven assembly 30. The above-mentioned driving assembly 20, driven assembly 30 and locking mechanism 40 with the first locking component 41 and the second locking component 42 can realize the bidirectional locking of the driven assembly 30, which not only can effectively prevent the driven assembly 30 from rotating randomly due to external force, but also can effectively avoid the problem of mutual interference between parts in the traditional locking mechanism 40 by the independent arrangement of the first locking component 41 and the second locking component 42, thereby ensuring the effectiveness of the locking mechanism 40 in use and effectively improving the service life of the locking mechanism 40.

[0064] In the following, the specific structure of the locking device provided by the embodiment of the present application will be described. Figure 1 - the box body 10 is provided with a locking device 40, and the locking device 40 is arranged on the box body 10 and comprises a driving assembly 20, a driven assembly 30 and a locking mechanism 40. Figure 9 The specific structure of the locking device provided by the embodiment of the present application will be described.

[0065] As shown in the drawings, Figure 4 As shown in the drawings, Figure 4The schematic view of the sectional structure of the locking device provided according to some embodiments of the present application is shown on the side of the driven assembly. In some embodiments, the locking mechanism 40 further comprises a locking disc 43, one end surface of which is fixedly connected with the driven assembly 30, and the other end surface is provided with a second clamping part; the first locking part 41 and the second locking part 42 are arranged on the outer circumferential surface of the locking disc 43, and the locking directions of the first locking part 41 and the second locking part 42 are opposite to each other with respect to the driven assembly 30.

[0066] Specifically, the driven assembly 30 is fixedly connected with one end surface of the locking disc 43, and specifically, the locking disc 43 can be fixedly connected with the driven assembly 30 by means of bolts, for example, a plurality of mounting holes can be formed on the end surface of the locking disc 43, and a plurality of corresponding mounting holes can be formed on the end surface of the driven assembly 30 facing the locking disc 43, and the bolts are sequentially passed through the two mounting holes, so as to realize the fixed connection between the driven assembly 30 and the locking disc 43. The other end surface of the locking disc 43 can be provided with a rectangular groove or a plurality of pin holes, or a rectangular block or a plurality of pin shafts, which are not limited herein.

[0067] The first locking part 41 and the second locking part 42 can be understood as a conventional one-way locking structure (including a special-shaped surface, a spring, a roller and the like), and then the main body part of the first locking part 41 and the second locking part 42 can be fixed on the outer circumferential surface of the locking disc 43 by means of bolts, welding or the like, of course, the main body part of the first locking part 41 and the second locking part 42 can be integrally formed with the locking disc 43, so as to enhance the connection strength between the two. By reversely arranging the one-way locking directions of the first locking part 41 and the second locking part 42 on the locking disc 43, the locking of the driven assembly 30 in different rotating directions can be realized.

[0068] The present example realizes the bidirectional locking of the driven assembly 30 by arranging two independent locking parts on the outer circumferential surface of the locking disc 43, and further improves the adaptability and stability of the locking mechanism 40 under different working conditions.

[0069] As shown in FIG. 1, Figures 4-7 As shown in FIG. 2, Figure 5 The schematic view of the sectional structure of the first locking part provided according to some embodiments of the present application is shown on the side of the driven assembly. Figure 6 The schematic view of the sectional structure of the second locking part provided according to some embodiments of the present application is shown on the side of the driven assembly. Figure 7Fig. 1 is a schematic view of a locking mechanism according to some embodiments of the present application. In some embodiments, the first locking component 41 comprises a first stop portion 411, a first locking member 412 and a first elastic member 413, the first stop portion 411 is arranged on the outer periphery of the locking disc 43, and the first elastic member 413 is arranged between the first stop portion 411 and the first locking member 412; the second locking component 42 comprises a second stop portion 421, a second locking member 422 and a second elastic member 423, the second stop portion 421 is arranged on the outer periphery of the locking disc 43, and the second elastic member 423 is arranged between the second stop portion 421 and the second locking member 422; wherein the stop direction of the first stop portion 411 to the first locking member 412 is opposite to the stop direction of the second stop portion 421 to the second locking member 422.

[0070] Specifically, the first stop portion 411 is similar to the structure of a ratchet wheel in combination with the structure of the locking disc 43, the first stop portion 411 can be regarded as a ratchet tooth of a ratchet wheel, the first locking member 412 can be a roller, and the first elastic member 413 can be a V-shaped spring piece, as shown in Fig. 2. Figure 9 As shown, the side of the V-shaped spring piece facing the ball can be provided with an arc to wrap part of the ball to improve the reliability when the roller moves relative to the V-shaped spring piece. In the example, the roller and the V-shaped spring piece are arranged between two adjacent ratchet teeth, and the V-shaped spring piece is closer to the axis of the locking disc 43 (i.e., the surface of the first stop portion 411 is arranged obliquely). The structure of the second locking component 42 is the same as that of the first locking component 41, but the stop directions of the stop portions thereof are opposite, in other words, the direction of the ratchet tooth of the first locking component 41 is opposite to that of the ratchet tooth of the second locking component 42.

[0071] In the example, the second stop portion 421, the second locking member 422 and the second elastic member 423 in the second locking component 42 have the same structure and arrangement as the first stop portion 411, the first locking member 412 and the first elastic member 413 in the first locking component 41, and move independently of each other, effectively avoiding the problem that the components in the traditional locking mechanism 40 (especially the rollers arranged on both sides of the spring) interfere with each other, causing the locking mechanism 40 to fail, and further avoiding the problem that the adjacent two rollers in the traditional locking mechanism 40 press the middle spring to break under extreme working conditions.

[0072] As shown in Fig. 1, Figure 4 , Figure 5 and Figure 6As shown, in some embodiments, the toggle portion 22 is located between the locking mechanism 40 and the box body 10, and the first locking member 412 and the second locking member 422 are located on two sides of the toggle portion 22, respectively; the driven assembly 30 is configured to be passively rotated, the locking disc 43 rotates by a preset angle relative to the driving assembly 20, the toggle portion 22 moves towards the first elastic member 413, and the first locking member 412 is toggled to the release position, and the second locking member 422 is located in the locking position under the elastic force of the second elastic member 423 to block the rotation of the driven assembly 30 relative to the second locking member 422 about the rotation axis; the driving assembly 20 is configured to be operatively rotated, the first locking member 412 is driven to the release position by the toggle portion 22, and the first clamping portion 21 and the second clamping portion abut to drive the driven assembly 30 to rotate; wherein the second locking member 422 is in the release position under the relative rotation of the locking disc 43 and the box body 10.

[0073] It can be understood that, since the structure of the first locking member 41 and the structure of the second locking member 42 are the same, only the arrangement is opposite, that is, the direction in which the first locking member 412 compresses the first elastic member 413 is opposite to the direction in which the second locking member 422 compresses the second elastic member 423. In order to enable the toggle portion 22 (toggle lever) to simultaneously act on the first locking member 412 and the second locking member 422, the toggle portion 22 is located between the first locking member 412 and the second locking member 422 and is in contact with the first locking member 412 and / or the second locking member 422. The purpose of the arrangement of the toggle portion 22 in the example is to be able to toggle the first locking member 412 or the second locking member 422 to the release position.

[0074] For the sake of clear understanding of the locking principle of the locking mechanism 40 in this example, the first locking component 41 is defined to be arranged close to the driving assembly 20, and the second locking component 42 is defined to be arranged close to the driven assembly 30. When the driving assembly 20 is driven to rotate along the X direction by the external driving mechanism (operable to rotate), since the first clamping portion 21 and the second clamping portion have a gap therebetween, the actuating portion 22 is driven to rotate along the X direction by the driven assembly 30, at this time, the actuating portion 22 will act on the first locking member 412 to compress the first elastic member 413, i.e. the first locking member 412 is in the released position; while the second locking member 422 is not affected by the actuating portion 22 and is in the locked position; at the same time, the locking disc 43 and the driven assembly 30 are driven to rotate along the X direction by the driving assembly 20, the locking disc 43 and the second locking member 422 thereon are both rotated along the X direction relative to the box body 10, the second locking member 422 will be pushed to the released position by the combined force of the first stop portion 411 and the box body 10, i.e. the second locking member 422 is moved in the direction of compressing the second elastic member 423, so as not to interfere with the common rotation of the driving assembly 20, the locking disc 43 and the driven assembly 30. Similarly, when the driving assembly 20 rotates in the direction opposite to the X direction, the actuating portion 22 will act on the second locking member 422 to be in the released position, and the first locking member 412 will be in the released position under the combined action of the first stop portion 411 and the box body 10.

[0075] When the driven assembly 30 is driven to rotate to the position by the driving assembly 20, the driven assembly 30 is easy to be rotated by external force (passive response type rotation), taking the rotation of the driven assembly 30 along the X direction as an example, when the driven assembly 30, i.e. the locking disc 43, rotates along the X direction, the actuating portion 22 will abut against the second locking member 422 and push the second locking member 422 to compress the second elastic member 423 to be in the released position; while the first locking member 412 is in the locked position, when the locking disc 43 has a tendency to move along the X direction, the first locking member 412 arranged thereon has a tendency to continue to move along the X direction, i.e. the first locking member 412 will continuously abut against the first stop portion 411 and the box body 10, and continuously be in the locked position, so as to realize the locking of the locking disc 43 and the box body 10, i.e. the locking of the driven assembly 30 and the box body 10. Similarly, when the driven assembly 30 is rotated by the natural wind in the direction opposite to the X direction, through the cooperation of the actuating portion 22 and the locking mechanism 40, the locking of the driven assembly 30 and the box body 10 can also be realized.

[0076] The above example analyzes two working conditions of the driven assembly 30 in passive response rotation and the driving assembly 20 in active operation rotation. The setting of the locking device provided by the example can realize the synchronous rotation of the driving assembly 20 driving the driven assembly 30, and can realize the bidirectional locking of the driven assembly 30. By independently setting the first locking component 41 and the second locking component 42, that is, the action of the first locking component 412 and the first elastic component 413, and the action of the first locking component 412 and the second elastic component 423 are not interfered with each other, the problem that the two rollers of the traditional locking mechanism 40 are easy to violently press and break the spring in the extreme working condition can be avoided, so as to ensure the effectiveness of the use of the locking mechanism 40.

[0077] As shown in Figure 8 Figure 8 The structure diagram of the first stop portion and the second stop portion provided according to some embodiments of the present application is shown. In some embodiments, the first stop portion 411 includes a first bearing surface 4111 and a first stop surface 4112, the first locking component 412 is located between the first bearing surface 4111 and the box body 10, one end of the first elastic component 413 is limited to the first stop surface 4112, and the other end is limited to the first locking component 412; the second stop portion 421 includes a second bearing surface 4211 and a second stop surface 4212, the second locking component 422 is located between the second bearing surface 4211 and the box body 10, one end of the second elastic component 423 is limited to the second stop surface 4212, and the other end is limited to the second locking component 422.

[0078] Specifically, the first stop portion 411 and the second stop portion 421 can be understood as the ratchet teeth of a ratchet, and the first bearing surface 4111 and the second bearing surface 4211 are inclined planes or arc surfaces, which can be formed on the horizontal part of the stop portion by a mechanical processing process to ensure that the distance from the box body 10 gradually increases or decreases along the circumference of the locking disc 43. In one example, along the circumference of the locking disc 43, the distance between the first bearing surface 4111 and the box body 10 gradually increases or decreases, and the distance between the second bearing surface 4211 and the box body 10 gradually decreases or increases. Specifically, by reasonably designing the change relationship between the first bearing surface 4111 and the second bearing surface 4211 and the distance from the box body 10, the working performance of the locking device in different rotation directions is further optimized. The locking component can more accurately realize the locking and releasing functions, reduce the impact and wear in the locking process, and improve the service life and working efficiency of the locking device.

[0079] ​The example can provide different support and guiding effects for the locking piece according to the rotating direction of the locking disc 43 during the working process of the locking piece by setting the first bearing surface 4111 and the second bearing surface 4211 with specific shapes. That is, when the locking disc 43 rotates, the position of the first locking piece 412 on the first bearing surface 4111 changes with the rotation, and the change in the distance between the first bearing surface 4111 and the box body 10 enables the first locking piece 412 to realize the locking and releasing functions at the appropriate position. Similarly, the second bearing surface 4211 also provides similar functions for the second locking piece 422. The design of this structure can improve the reliability and stability of the locking device.

[0080] As shown in Figure 3 , Figure 4 In some embodiments, the driven assembly 30 includes a driven shaft fixedly connected with an end surface of the locking disc 43, and the driving assembly 20 includes a driving shaft provided with a first clamping part 21 facing the end surface of the locking disc 43, and a poking part 22 arranged at the edge of the driving shaft.

[0081] Specifically, the locking disc 43 has a through hole at the center, the driven shaft is fixedly provided with a limiting column facing the locking disc 43, the limiting column is adapted to be inserted into the through hole to realize the adaptive insertion of the two, and the locking disc 43 is provided with a plurality of mounting holes around the center, and the driven shaft is provided with a plurality of mounting holes one by one, which can be penetrated by bolts to realize the fixed connection of the driven shaft and the locking disc 43.

[0082] It should be noted that the first locking piece 412, the first elastic piece 413 and the first stop part 411 can be arranged in multiple numbers along the circumference of the locking disc 43, and similarly, the second locking piece 422, the second elastic piece 423 and the second stop part 421 can also be arranged in multiple numbers along the circumference of the locking disc 43, and the two are consistent, but the specific number is not limited here. Then, the poking part 22 can be arranged in multiple numbers along the circumference of the driving shaft to ensure that one poking part 22 is arranged between each first locking piece 412 and second locking piece 422.

[0083] In some embodiments, the first clamping part 21 includes a plurality of limiting grooves formed on the end surface of the driving shaft, the plurality of limiting grooves are distributed at intervals around the rotating axis, and the second clamping part includes a plurality of transmission rods arranged on the end surface of the locking disc 43, and the plurality of transmission rods correspond one by one to the plurality of limiting grooves.

[0084] Specifically, the number of limiting grooves is at least two, and the at least two transmission rods correspond one by one to transmit the torque. For example, the number of transmission rods is three, and the three transmission rods are respectively located at the three corners of an equilateral triangle with the axis of the locking disc 43 as the center. Similarly, three limiting grooves are also arranged on the end surface of the driving shaft, and this arrangement can ensure the uniformity and stability of torque transmission and improve the transmission efficiency of torque.

[0085] Of course, the positions of the limiting grooves and the transmission rods described above can be interchanged. In one example, the first clamping part 21 includes a plurality of transmission rods arranged at the end face of the driving shaft, the plurality of transmission rods are distributed at intervals around the rotation axis, and the second clamping part includes a plurality of limiting grooves formed at the end face of the locking disc 43, the plurality of transmission rods and the plurality of limiting grooves correspond to each other in one-to-one manner.

[0086] It should be noted that the axis of the driving shaft is provided with a limiting hole, the axis of the locking disc 43 is provided with a through hole, and the axis of the driven shaft is provided with a limiting shaft, the limiting shaft is inserted into the limiting hole through the through hole, and the coaxiality of the driving shaft, the locking disc 43 and the driven shaft is ensured.

[0087] In some embodiments, the box body 10 includes a mounting seat 12 and a spacer sleeve 11 arranged in the mounting seat 12, and the locking mechanism 40 is adapted to be arranged in the spacer sleeve 11.

[0088] Specifically, a circular through hole can be machined at the center position of the mounting seat 12 for mounting the spacer sleeve 11, and the spacer sleeve 11 can be mounted in the circular through hole of the mounting seat 12 by interference fit. The locking mechanism 40 is adapted to be arranged in the spacer sleeve 11, and by arranging the spacer sleeve 11, on the one hand, the sealing effect is achieved, and on the other hand, the installation and fixation effects are achieved, so that the first locking part 412, the second locking part 422 and other components are not easy to slide out, and the use reliability of the locking device is improved.

[0089] Based on the same inventive concept, the embodiments of the present application also provide a photovoltaic tracking support, which can include a driving member, a first main shaft, a second main shaft and the locking device described in the above embodiments; wherein one end of the first main shaft is connected with the driving member, the other end is connected with the driving assembly 20 of the locking device, and the second main shaft is connected with the driven assembly 30 of the locking device.

[0090] It can be understood that the first main shaft and the second main shaft are used to install photovoltaic modules, the driving member is connected with the first main shaft, the first main shaft is connected with the driving component 20 of the locking device, and the second main shaft is connected with the driven component 30 of the locking device. When the photovoltaic tracking support is normally operated, the rotating power of the driving member is transmitted to the second main shaft through the first main shaft and the locking mechanism 40, the synchronous rotation of the first main shaft and the second main shaft is realized, and then the orientation consistency of the plurality of photovoltaic modules installed on the first main shaft and the second main shaft is ensured, and the photovoltaic power generation efficiency is ensured. When external force (usually wind force) acts on the photovoltaic module, that is, acts on the second main shaft, the torque is blocked at the locking mechanism 40, and then the risk of the torque being transmitted to the driving member through the first main shaft to affect the use reliability of the driving member is reduced, the torsional resistance of the photovoltaic support is improved, and then the photovoltaic power generation rate is ensured. Through the cooperation of the locking mechanism 40 and the driving unit, 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.

[0091] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not exist contradictory, they should be considered within the scope of the present disclosure.

[0092] The above-described 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 in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within 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 locking device, characterized in that The locking device comprises: a box body having a rotation axis; a driving assembly at least partially located in the box body, and provided with a first clamping portion and a pushing portion; a driven assembly located on one side of the driving assembly along the rotation axis and at least partially located in the box body; a locking mechanism located in the box body and fixedly connected with the driven assembly, and provided with a second clamping portion, the second clamping portion being gap-connected with the first clamping portion; wherein the locking mechanism comprises a first locking component and a second locking component arranged in sequence along the rotation axis; when the driven assembly is acted on by an external force, the pushing portion acts on the first locking component or the second locking component, so that the second locking component or the first locking component abuts against the box body, thereby realizing bidirectional locking of the driven assembly.

2. The locking device of claim 1, wherein The locking mechanism further comprises a locking disc, one end surface of the locking disc being fixedly connected with the driven assembly, and the other end surface being provided with the second clamping portion; the first locking component and the second locking component are arranged on the outer circumferential surface of the locking disc, and the locking directions of the first locking component and the second locking component on the driven assembly are opposite.

3. The locking device of claim 2, wherein The first locking component comprises a first stop portion, a first locking piece and a first elastic piece, the first stop portion is arranged on the outer circumferential surface of the locking disc, and the first elastic piece is located between the first stop portion and the first locking piece; The second locking component comprises a second stop portion, a second locking piece and a second elastic piece, the second stop portion is arranged on the outer circumferential surface of the locking disc, and the second elastic piece is located between the second stop portion and the second locking piece; wherein the stop direction of the first stop portion on the first locking piece is opposite to the stop direction of the second stop portion on the second locking piece.

4. The locking device of claim 3, wherein The pushing portion is located between the locking mechanism and the box body, and the first locking piece and the second locking piece are respectively located on two sides of the pushing portion; The driven assembly is configured to be passively responsive to rotation, the locking disc rotates by a preset angle relative to the driving assembly, the pushing portion moves towards the first elastic piece and pushes the first locking piece to a release position, and the second locking piece is located in a locking position under the elastic force of the second elastic piece, so as to block the rotation of the driven assembly relative to the second locking piece around the rotation axis; The driving assembly is configured to be operatively rotated, the pushing portion drives the first locking piece to the release position until the first clamping portion and the second clamping portion abut against each other, so as to drive the driven assembly to rotate; wherein the second locking piece is in the release position under the relative rotation of the locking disc and the box body.

5. Locking device according to claim 3 or 4, characterized in that The first stop portion comprises a first bearing surface and a first stop surface, the first locking piece is located between the first bearing surface and the box body, one end of the first elastic piece is limited to the first stop surface, and the other end is limited to the first locking piece; The second stop portion comprises a second bearing surface and a second stop surface, the second locking member is located between the second bearing surface and the box body, one end of the second elastic member is limited to the second stop surface, and the other end is limited to the second locking member.

6. The locking device of claim 5, wherein Along the circumference of the locking disc, the distance between the first bearing surface and the box body gradually increases or gradually decreases, and the distance between the second bearing surface and the box body gradually decreases or gradually increases.

7. The locking device according to any one of claims 2-4, characterized in that The driven assembly comprises a driven shaft, and the driven shaft is fixedly connected with an end surface of the locking disc. The driving assembly comprises a driving shaft, and the driving shaft is provided with the first clamping portion towards the end surface of the locking disc.

8. The locking device of claim 7, wherein The first clamping portion comprises a plurality of limiting grooves formed in the end surface of the driving shaft, and the plurality of limiting grooves are distributed at intervals around the rotation axis. The second clamping portion comprises a plurality of transmission rods provided on the end surface of the locking disc, and the plurality of transmission rods correspond to the plurality of limiting grooves one by one.

9. The locking device of claim 8, wherein Alternatively, the first clamping portion comprises a plurality of transmission rods provided on the end surface of the driving shaft, and the plurality of transmission rods are distributed at intervals around the rotation axis.

10. The locking device according to any one of claims 1 to 4, wherein The second clamping portion comprises a plurality of limiting grooves formed in the end surface of the locking disc, and the plurality of transmission rods correspond to the plurality of limiting grooves one by one.

11. A photovoltaic tracking support, characterized in that, The diameter of the transmission rod is smaller than the inner diameter of the limiting groove. The box body comprises a mounting seat and a spacer sleeve arranged in the mounting seat, and the locking mechanism is adapted to be arranged in the spacer sleeve. The locking device comprises a driving member, a first main shaft, a second main shaft and the locking device according to any one of claims 1-10. One end of the first main shaft is connected with the driving member, the other end is connected with the driving assembly of the locking device, and the second main shaft is connected with the driven assembly of the locking device.

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