Transmission structure and photovoltaic device

Abstract

The invention relates to a transmission structure which comprises a transmission assembly, a clutch piece and a trigger piece, the transmission assembly comprises an output end, and the output end is provided with a first mounting part connected with a first load; the clutch piece is connected with the output end, the clutch piece and the output end have a closed state in transmission connection or a separated state in relative rotation, and the clutch piece is provided with a second mounting part connected with a second load; the trigger piece is connected with the clutch piece and used for completing switching of the second installation part and the first installation part between the closed state and the separated state when external force is applied to the trigger piece. In a closed state, the transmission assembly can drive the first mounting part and the second mounting part to rotate synchronously; in the separated state, the transmission assembly can drive the first installation part to rotate relative to the second installation part. The invention also discloses a photovoltaic device using the transmission structure. The photovoltaic device has the beneficial effects that the overall cost is reduced, and the safety of the photovoltaic device is improved.

Description

Technical Field

[0002] The present invention relates to the field of mechanical transmission, and in particular to a transmission structure and a photovoltaic device. Background Art

[0003] Mechanical transmission refers to the use of a mechanical structure to drive the load to achieve the desired movement under the action of a power source.

[0004] The current transmission structure can only drive one load to perform the expected movement, or drive multiple loads to perform the expected movement synchronously. In some application scenarios, for example, the transmission structure for outdoor photovoltaic devices, the transmission structure for outdoor billboards, etc., because they are used outdoors as a whole, they are easily affected by severe weather such as rain, snow, hail or strong winds. The impacts include: when snow covers the photovoltaic panels, the photovoltaic panels will not be able to receive sunlight, and hail will cause damage to the photovoltaic panels or billboards. At the same time, in windy weather, such as the aforementioned outdoor devices, the area of ​​the load driven by the transmission structure is relatively large, which will also cause the photovoltaic panels or billboards to be affected by a large force from the wind, which can easily cause irreversible damage or even destruction to the transmission structure. Currently, in order to reduce the impact of wind, the number of transmission structures is usually increased to reduce the area of ​​the load driven by a single transmission structure, which in turn leads to an increase in overall costs.

[0005] This has led to research on the transmission structure of the devices or equipment used in the aforementioned application scenarios. Summary of the invention

[0006] The primary purpose of the present invention is to provide a transmission structure to solve the problem caused by the current transmission structure being able to only drive one load to move or drive multiple loads to move synchronously. The second purpose of the present invention is to provide a photovoltaic device.

[0007] To achieve the above object, the present invention adopts the following technical solutions: As a first aspect of the present invention, a transmission structure comprises The transmission assembly comprises an output end, wherein the output end is provided with a first mounting portion for fixedly connecting a first load; A clutch member connected to the output end and in a closed state in which the clutch member can be connected to the output end in a transmission manner or in a separated state in which the clutch member can rotate relatively; A second mounting portion, disposed on the clutch member, for fixedly connecting a second load; A trigger member connected to the clutch member, and used to complete the switching of the second mounting portion and the first mounting portion between the closed state and the separated state when subjected to an external force; In the closed state, the clutch member and the output end are drivably connected, and the transmission assembly can drive the first mounting portion and the second mounting portion to rotate synchronously; In the separated state, the clutch member and the output end are connected to each other so as to be relatively rotatable, and the transmission assembly can drive the first mounting portion to rotate relative to the second mounting portion.

[0008] The transmission structure proposed in the present invention adjusts the connection mode between the output end and the clutch part through a trigger member, thereby realizing a closed state and a separated state between the clutch part and the output end. At the same time, a first mounting portion for driving the first load is provided at the output end, and a second mounting portion for driving the second load is provided on the clutch part, so that when the clutch part and the output end are in a closed state, the two loads are driven to make the same movement, and when the clutch part and the output end are in a separated state, only the first load connected to the first mounting portion can be driven to move. That is, a group of transmission structures proposed in the present application can be used to drive two groups of loads to make synchronous movement, thereby reducing the use of the transmission structure, and a group of transmission structures proposed in the present application can be used to realize asynchronous movement of two groups of loads connected to the output end, so that when the loads have a risk avoidance demand, one group of loads can be driven to overlap relative to the other group of loads through the transmission structure to ensure the safety of functional components in the loads.

[0009] As a second aspect of the present invention, a photovoltaic device includes a first photovoltaic panel, a second photovoltaic panel and the transmission structure as described above, wherein the first photovoltaic panel is connected to the first mounting portion, and the second photovoltaic panel is connected to the second mounting portion.

[0010] The transmission structure and photovoltaic device of the present invention have the beneficial effects of reducing the overall cost and improving the safety of the transmission structure and the load driven by the transmission structure; specifically, they are: First, the transmission structure proposed in the present invention adjusts the connection mode between the output end and the clutch part through the trigger part, so as to realize the closed state and the separated state between the clutch part and the output end. At the same time, a first mounting part for driving the first load is provided on the output end, and a second mounting part for driving the second load is provided on the clutch part, so that when the clutch part and the output end are in the closed state, the two loads are driven to do the same movement, and when the clutch part and the output end are in the separated state, only the first load connected to the first mounting part can be driven to move. That is, the transmission structure proposed in the present invention can drive the two groups of loads to do synchronous movement, reduce the use of the transmission structure, and reduce the cost, and can drive the two groups of loads to do asynchronous movement respectively, so that when there is a need to avoid danger, one group of loads can be driven to overlap relative to the other group of loads through the transmission structure to ensure the safety of the loads; at the same time, when applied to outdoor scenes, since the two groups of loads driven by the transmission structure proposed in the present invention can be overlapped, the wind-exposed area is effectively reduced, that is, the influence of wind on the load and the transmission structure is reduced.

[0011] Second, in the transmission structure proposed by the present invention, when the transmission component therein adopts a guide structure that extends spirally around the axis of the output member, when the load is affected by external factors and generates a force on the transmission structure, under the action of the spiral guide structure, the external force is decomposed into a part that is directly transmitted from the output member to the support member via the intermediate member and a part that is transmitted from the input member to the input member via the intermediate member, and when the degree value of the angle formed by the guide structure and the axis of the output member is greater than 12 and less than 18, most of the force exerted by the load on the transmission structure will be directly transmitted to the support member. Therefore, at this time, only a very small force output by the external power source is required to keep the load relatively still. At the same time, since it can be known that the action of force is mutual, the external power source only needs to output a very small force to easily drive the load. Therefore, the transmission structure proposed by the present invention has low power requirements for the power source.

[0012] Third, in the transmission structure proposed by the present invention, the input member in the transmission assembly can be arranged coaxially with the support member, or a chamber can be set in the support member and the input member can be arranged in the chamber, which has a higher degree of integration, making the overall structure more compact and the overall volume of the transmission structure smaller.

[0013] Fourthly, the clutch member proposed in the present invention is provided with a fixed part rotatably connected to the output end and a movable part which can form a transmission connection with the output end. The transmission connection with the output end is formed either through the end of the movable part or through the surface of the movable part near the output end. This ensures the transmission connection between the clutch member and the output end when they are in a closed state. At the same time, it is also beneficial to set a trigger member to change the connection state between the clutch member and the output end under the action of an external force. That is, the trigger member only needs to drive the movable part to move relative to the output end so that the movable part is out of transmission connection with the output end. The trigger member is acted upon by an external force, which can be either contacted and triggered by an external component or by other transmission structures driving the transmission structure proposed in the present invention so that the trigger member contacts the outside and is triggered. Therefore, it is not only easy to use but also ensures the reliability of the trigger. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present application, rather than limiting the present application.

[0015] Figure 1 A schematic diagram of an embodiment of a transmission structure of a transmission assembly of the present application adopting a first embodiment; Figure 2 for Figure 1 Schematic diagram of a partial explosion; Figure 3 for Figure 2 Exploded diagram of the transmission assembly; Figure 4 for Figure 3 A partial enlarged schematic diagram in the middle; Figure 5 It is a schematic diagram of a second embodiment of a transmission component in a transmission structure of the present application; Figure 6 for Figure 5 Explosion diagram of Figure 7 This is an axial schematic diagram of a transmission structure of the clutch member of the present application adopting the first embodiment; Figure 8 for Figure 7 An exploded diagram of one end of Fig. 9 A partial schematic diagram of a transmission structure of the clutch member of the present application adopting the second embodiment; Fig.10 for Fig. 9 Explosion diagram of Fig.11 A schematic diagram of a transmission structure of the present application in a closed state when in use; Fig.12 A schematic diagram of a transmission structure of the present application in a clutch state when the load has not been folded; Fig.13 This is a schematic diagram of a transmission structure of the present application in a clutch state when the load is folded.

[0016] Wherein: 1. transmission assembly; 11. output member; 111. output end; 112. first mounting portion; 113. second toothing portion; 114. fixing ring; 12. support member; 121. chamber; 122. strip hole; 13. input member; 131. screw rod; 132. screw rod nut; 14. intermediate member; 15. guide structure; 151. first guide structure; 1511. first guide portion; 1512. second guide portion; 152. second guide structure; 1521. third guide portion; 1522. fourth guide portion; 2. Clutch; 21. Second mounting portion; 22. Connecting portion; 23. Annular extension portion; 231. Keyway; 24. Movable portion; 241. First toothed portion; 242. Guide key; 25. Elastic member 3. Trigger; 41. A first photovoltaic panel; 42. A second photovoltaic panel. Implementation

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0018] As a first aspect of this embodiment, Figures 1 to 10 As shown, a transmission structure includes a transmission assembly 1, a clutch 2 and a trigger 3, wherein the transmission assembly 1 includes an output end 111, and a first mounting portion 112 for fixedly connecting a first load is provided on the output end 111; the clutch 2 is connected to the output end 111, and the clutch 2 and the output end 111 have a closed state that can be connected in a transmission manner or a separated state that can rotate relatively; at the same time, a second mounting portion 21 for fixedly connecting a second load is also provided on the clutch 2; the trigger 3 is connected to the clutch 2, wherein the trigger 3 is used to complete the switching of the second mounting portion 21 and the first mounting portion 112 between the closed state and the separated state when subjected to an external force; at the same time, in the closed state, the clutch 2 and the output end 111 are connected in a transmission manner, and the transmission assembly 1 can drive the first mounting portion 112 and the second mounting portion 21 to rotate synchronously; in the separated state, the clutch 2 and the output end 111 are connected in a relatively rotational manner, and the transmission assembly 1 can drive the first mounting portion 112 to rotate relative to the second mounting portion 21.

[0019] The transmission structure proposed in this embodiment adjusts the connection mode between the output end 111 and the clutch 2 through the trigger member 3, so that the clutch 2 and the output end 111 have a closed state and a separated state. At the same time, a first mounting portion 112 for driving the first load is provided on the output end 111, and a second mounting portion 21 for driving the second load is provided on the clutch 2, so that when the clutch 2 and the output end 111 are in a closed state, the two loads are driven to do the same movement, and when the clutch 2 and the output end 111 are in a separated state, only the first load connected to the first mounting portion 112 can be driven to move, that is, a group of transmission structures proposed in this application can be used to drive two groups of loads to do synchronous movement, thereby reducing the use of the transmission structure, and a group of transmission structures proposed in this application can be used to realize the two groups of loads connected to the output end 111 to do asynchronous movement, so that when the loads have a risk avoidance demand, one group of loads can be driven to overlap relative to the other group of loads through the transmission structure to ensure the safety of the functional components in the loads.

[0020] It should be understood that, in the present embodiment, the transmission component 1 refers to the ability to drive the load to achieve the desired movement through force transmission under the action of the power source. In order to achieve synchronous rotation of two groups of loads in a closed state and rotation of one group of loads relative to the other group of loads in a separated state, it is only necessary to ensure that the output end 111 of the transmission component 1 has a rotational output. For example, in the transmission structure of a worm and worm wheel, the output end 111 is arranged along the axis of the worm wheel. The power source drives the worm to rotate, and the worm wheel can rotate under the cooperation of tooth meshing, that is, the output end 111 can rotate.

[0021] As a preferred implementation of the transmission assembly 1 proposed in this embodiment, Figures 1 to 6As shown, the transmission assembly 1 includes a support member 12, an output member 11 and an input member 13; wherein the support member 12 is used to form a fixed connection with the outside, so as to facilitate the arrangement of the output member 11 and the input member 13; since the output member 11 is used to drive the load, the output member 11 is provided with an output end 111 for direct or indirect connection with the load, and at the same time, the output member 11 is supported by the support member 12 and movably connected to the support member 12, and the axis of the output member 11 is defined by the support member 12, and in order to connect with an external power source, an input member 13 for connecting with the external power source is also provided, and similarly, the input member 13 is also supported by the support member 12 and movably connected to the support member 12. The support member 12 is movably connected; in order to ensure the transmission of power, the output member 11 is in transmission cooperation with the input member 13, and the transmission direction of the input member 13 to the output member 11 is in the same direction as the axis of the output member 11; in order to ensure that the output member 11 can drive the load to achieve the desired movement, it is necessary to limit the movement direction of the output member 11, and therefore, it also includes a guide structure 15 for guiding the movement of the output member 11, and the guide structure 15 extends spirally around the axis of the output member 11; when in use, driven by the input member 13 and guided by the guide structure 15, the output member 11 rotates at least around its axis.

[0022] It should be understood that, when the output member 11 is movably connected to the support member 12 and the axis of the output member 11 is defined by the support member 12, the output member 11 can only rotate around its axis relative to the support member 12, make linear motion along the axis, or rotate around its axis and make linear motion along the axis as a whole. At the same time, under the action of the guide structure 15 extending spirally around the axis of the output member 11, the output member 11 either rotates around its axis or rotates around its axis and makes linear motion along the axis as a whole. Therefore, driven by the input member 13 and guided by the guide structure 15, the output member 11 at least rotates around its axis.

[0023] Further, in this embodiment, if Figures 1 to 6As shown, the transmission assembly 1 also includes an intermediate piece 14 arranged between the input piece 13 and the output piece 11, and a transmission connection is formed between the intermediate piece 14 and the input piece 13, and a transmission fit is formed between the intermediate piece 14 and the output piece 11; the guide structure 15 includes a first guide structure 151 and a second guide structure 152, and at least one of the first guide structure 151 and the second guide structure 152 extends in a spiral shape around the axis of the output piece 11; the first guide structure 151 includes a first guide portion 1511 and a second guide portion 1512 matched with the first guide portion 1511, and the second guide structure 152 includes a third guide portion 1521 and a fourth guide portion 1522 matched with the third guide portion 1521; wherein, the first guide portion 1511 and the third guide portion 1521 are arranged on the intermediate piece 14.

[0024] It should be understood that the guide structure 15 refers to a mechanical structure that can limit the movement direction of the output member 11 when the output member 11 is driven by the input member 13. The guide structure 15 extends in a spiral shape around the axis of the output member 11. When the guide structure 15 is composed of two or more guides, only any one of the guides needs to be spiral. That is, in this embodiment, when there are two guide structures 15, that is, the guide structure 15 includes a first guide structure 151 and a second guide structure 152, only one of the first guide structure 151 and the second guide structure 152 needs to extend in a spiral shape around the axis of the output member 11.

[0025] As a first preferred embodiment of the transmission assembly 1 proposed in this embodiment, Figures 1 to 4 As shown, the intermediate member 14 is columnar, one end of the intermediate member 14 is connected to the input member 13, and the other end is provided with a first hole coaxial with the output member 11, one end of the support member 12 is embedded in the first hole, the first guide portion 1511 is provided on the inner wall surface of the first hole, and the second guide portion 1512 is provided on the outer peripheral surface of the support member 12; the output member 11 is annular and extends along the axial direction, and is sleeved on the intermediate member 14, the third guide portion 1521 is provided on the outer peripheral surface of the intermediate member 14, and the fourth guide portion 1522 is provided on the inner annular surface of the output member 11.

[0026] Further, in this embodiment, if Figures 1 to 4 As shown, one end of the intermediate member 14 connected to the input member 13 is provided with a second hole coaxial with the output member 11, and the input member 13 includes a screw rod 131 for connecting to an external power source, and the screw rod 131 is passed through the second hole.

[0027] It should be understood that, in this embodiment, the input member 13 includes a screw rod 131 for connecting to an external power source. To ensure power transmission, the input member 13 also includes one of the following components adapted to the screw rod 131: The first one is that the internal thread on the inner wall surface of the second hole is adapted to the screw rod 131, that is, the external thread on the outer peripheral surface of the screw rod 131 and the internal thread on the inner wall surface of the second hole form a match. When the screw rod 131 rotates, the thread cooperates to drive the intermediate piece 14 to make linear motion along the axis of the screw rod 131.

[0028] The second type, the input member 13 also includes a screw nut 132, and the screw nut 132 is fixedly connected to the second hole. Similarly, when the screw 131 rotates, it can drive the screw nut 132 to move along the axis of the screw 131. When the screw nut 132 is fixed in the second hole, that is, the screw nut 132 is fixedly connected to the middle member 14, it is possible to drive the middle member 14 to make linear motion along the axis of the screw 131.

[0029] Furthermore, in this embodiment, in order to ensure that the middle piece 14 can form a transmission connection with the screw rod 131 and can be sleeved on the support member 12 through the first hole and form a guiding cooperation with the bracket member, when the second hole does not penetrate the middle piece 14, the distance of the axial movement of the middle piece 14 along the screw rod 131 is limited by the depth of the second hole, so the length of the middle piece 14 will be increased accordingly. In order to shorten the overall length of the transmission assembly 1 as much as possible, the second hole penetrates the middle piece 14, that is, when the second hole penetrates the middle piece 14, that is, when the second hole is a through hole, the middle piece 14 as a whole can move along the axial direction of the screw rod 131 driven by the screw rod 131 without being limited by the depth of the second hole.

[0030] It should be understood that in this embodiment, when the screw rod 131 rotates driven by an external power source, it can drive the middle piece 14 to move along its axial direction through the threaded hole provided on the inner wall surface of the second hole and threadedly matched with the screw rod 131, or, the middle piece 14 can be driven to move along its axial direction through the screw nut 132 provided in the second hole and threadedly matched with the screw rod 131, and under the action of the first guide structure 151 and the second guide structure 152, the output member 11 can rotate relative to the support member 12.

[0031] It should be noted that, in this embodiment, the output ends 111 marked in the accompanying drawings are arranged at both ends of the output member 11. In fact, when the output member 11 is sleeved on the intermediate member 14, that is, when the output member 11 is located at the outermost layer of the transmission assembly 1, the output end 111 can be any position on the outer peripheral surface of the output member 11.

[0032] As a second preferred embodiment of the transmission assembly 1 proposed in this embodiment, Figure 5 , Figure 6 As shown, the support member 12 extends along the length direction, and a chamber 121 coaxial with the axial direction of the output member 11 is provided inside the support member 12. A strip hole 122 is also provided on the support member 12. The strip hole 122 extends from the wall surface of the chamber 121 along the radial direction of the support member 12 and penetrates the wall of the chamber 121. The first guide structure 151 is provided between the intermediate member 14 and the support member 12; the intermediate member 14 is annular and sleeved on the support member 1 2; the input member 13 includes a screw rod 131 and a screw rod nut 132, the screw rod nut 132 is coaxially arranged with the output member 11 and fixedly connected with the intermediate member 14, the screw rod 131 is penetrated by the screw rod nut 132; the output member 11 is annular and extends along the axial direction, and is sleeved on the intermediate member 14, the third guide portion 1521 is arranged on the outer peripheral surface of the intermediate member 14, and the fourth guide portion 1522 is arranged on the inner annular surface of the output member 11.

[0033] It should be noted that the fixed connection between the screw nut 132 and the middle piece 14 refers to that the two are fixedly connected via the strip hole 122. Therefore, the outer circumference of the screw nut 132 may extend radially and pass through the strip hole 122 to be connected to the middle piece 14, or a protrusion may be provided on the inner circumference of the annular middle piece 14 to be connected to the screw nut 132 via the strip hole 122, or protrusions may be provided on both the outer circumference of the screw nut 132 and the inner circumference of the annular middle piece 14 to form a fixed connection, or the two may be connected via an independent connecting piece. At the same time, the fixed connection between the screw nut 132 and the middle piece 14 refers to that the positions of the two are relatively fixed after the connection. Therefore, the two may be connected via connecting pieces such as screws, or by welding or other connection methods that can make the positions of the two relatively fixed.

[0034] It should be further explained that the strip hole 122 refers to a hole whose diameter extends along a radial direction of the hole and whose axial projection is in the shape of a long strip. Since a first guide structure 151 in a spiral guide structure 15 is provided between the intermediate member 14 and the support member 12, when the first guide structure 151 is spiral, the corresponding strip hole 122 is also spiral, and the spiral direction is consistent with the guide structure 15. When the first guide structure 151 is a linear guide, the shape of the strip hole 122 is linear.

[0035] At the same time, it should also be noted that in order to ensure the reliability of the connection between the screw nut 132 and the intermediate piece 14, the number of the strip holes 122 is at least one. When the number of the strip holes 122 is multiple, the multiple strip holes 122 are preferably arranged in a circular array on the wall of the chamber 121.

[0036] It should be noted that, in this embodiment, in order to limit the movement direction of the intermediate member 14 relative to the support member 12, the first guide portion 1511 and the second guide portion 1512 in the first guide structure 151 can be provided separately or in combination according to the following conditions, specifically: In the first case, the first guide portion 1511 is disposed on the inner annular surface of the intermediate member 14 , and the second guide portion 1512 is disposed on the two side walls of the strip hole 122 .

[0037] In the second case, the first guide portion 1511 is disposed on the outer circumferential surface of the screw nut 132 connected to the intermediate piece 14 , and the second guide portion 1512 is disposed on the inner wall of the chamber 121 .

[0038] In a third case, the first guide portion 1511 is disposed on the inner annular surface of the intermediate member 14 , and the second guide portion 1512 is disposed on the outer circumferential surface of the support member 12 .

[0039] Furthermore, in this embodiment, in order to facilitate the connection between the input member 13 and the support member 12, and at the same time, to facilitate the connection between the screw rod 131 in the input member 13 and the external power source, the chamber 121 extends toward at least one end along the axial direction of the output member 11, and passes through the top wall of the chamber 121 at the extended end, and the end of the screw rod 131 used to connect to the external power source extends from the extended end and protrudes from the end face of the support member 12.

[0040] It should be noted that in the above two preferred implementations of the transmission assembly 1 proposed in this embodiment, the screw 131 in the input member 13 described can be either a trapezoidal screw 131 or a ball screw 131 .

[0041] At the same time, it should be noted that in the preferred implementation of the transmission assembly 1 proposed in this embodiment, it is described that the load is arranged on the output member 11, and the support member 12 is used to connect to the outside. In fact, in actual use, those skilled in the art can easily think of connecting the load to the support member 12 proposed in this embodiment, and forming a fixed connection with the outside through the output member 11. Therefore, simply changing the use method of the transmission assembly 1 proposed in this embodiment should be understood to be within the scope of protection of this application.

[0042] Since there are too many existing transmission components 1 that can achieve a rotational output at the output end 111, it is impossible to list them all. Therefore, although this embodiment only lists the above-mentioned specific transmission components 1, merely changing the specific structure of the transmission component 1 should be considered to be within the scope of protection of this application.

[0043] It should be understood that in this embodiment, if Figures 1 to 6 As shown, when the screw rod 131 rotates driven by an external power source, it can drive the screw nut 132 to move along its axial direction, thereby driving the intermediate piece 14 fixedly connected to the screw nut 132 to move along its axial direction. Under the action of the first guide structure 151 and the second guide structure 152, the output piece 11 can rotate relative to the support piece 12.

[0044] Furthermore, in this embodiment, if Figure 3 , Figure 4 , Figure 6 As shown, in combination with the aforementioned transmission assembly 1, in the guide structure 15 proposed in this embodiment, the guiding direction of the first guide structure 151 is preferably parallel to the axis of the output member 11, and the second guide structure 152 is preferably extended in a spiral shape around the axis of the output member 11.

[0045] Furthermore, in this embodiment, the value of the angle formed by the second guide structure 152 and the axis of the output member 11 is greater than 12 and less than 18 degrees.

[0046] In combination with the two embodiments of the aforementioned transmission assembly 1, when the degree value of the angle between the spiral extension direction of the second guide structure 152 and the axis of the output member 11 is greater than 12 and less than 18, a certain force is applied by the output end 111. Under the action of the guide structure 15, most of the force applied to the output end 111 will be directly transmitted to the support member 12, which reduces the force on the power source through the input member 13. Correspondingly, it can be known that the action of force is mutual. At this time, the power source only needs a very small force to drive the same load to achieve the desired movement, thereby reducing the power of the power source and reducing costs.

[0047] Through experiments, it was found that when the diameter of the intermediate piece 14 is 50 mm and the angle is 18 degrees, when a force of 1000 N is applied to the output piece 11, in order to keep the output piece 11 stationary, a force of approximately 310 N is required along the axial direction of the output piece 11; and in order to drive a load of 1000 N, a driving force of approximately 450 N is required along the axial direction of the output piece 11.

[0048] When the angle is 14 degrees, when a force of 1000 N is applied to the output member 11, in order to keep the output member 11 stationary, a force of about 230 N is required along the axial direction of the output member 11; and in order to drive a load of 1000 N, a driving force of about 320 N is required along the axial direction of the output member 11.

[0049] When the angle is 12 degrees, when a force of 1000 N is applied to the output member 11, in order to keep the output member 11 stationary, a force of about 190 N is required along the axial direction of the output member 11; and in order to drive a load of 1000 N, a driving force of about 270 N is required along the axial direction of the output member 11.

[0050] When the angle is 10 degrees, when a force of 1000 N is applied to the output member 11, in order to keep the output member 11 stationary, a force of about 150 N is required along the axial direction of the output member 11; and in order to drive a load of 1000 N, a driving force of about 210 N is required along the axial direction of the output member 11.

[0051] It should be noted that, since the degree value can be infinitely subdivided, the present embodiment cannot list all degree values ​​between 12 and 18, and it can be known from the above experiments that when the degree value of the angle between the spiral extension direction of the second guide structure 152 and the axis of the output member 11 is in the range of 12 to 18, and the smaller the value, the lower the power requirement for the power source output, that is, the lower the power requirement for the power source; it should be understood that according to the idea of ​​the present embodiment, technical personnel in this field can easily select any specific value when the degree value is in the range of 12 to 18, or change the outer diameter size of the intermediate member 14, and at this time, it should be understood that it is within the protection scope of the present application.

[0052] Preferably, the guide structure 15 refers to a mechanical structure that can limit the movement direction of the output member 11 when the output member 11 is driven by the input member 13. Therefore, the common forms of the first guide structure 151 and the second guide structure 152 in the guide structure 15 include but are not limited to the following single forms or combinations, specifically: As a mode of the first guide structure 151, the first guide portion 1511 is a second protrusion, and the second guide portion 1512 is a second recess matched with the second protrusion; or, the first guide portion 1511 is a first recess, and the second guide portion 1512 is a third protrusion matched with the first recess.

[0053] As a mode of the second guide structure 152, the third guide portion 1521 is a fourth protrusion, and the fourth guide portion 1522 is a fourth recess matched with the fourth protrusion; or, the third guide portion 1521 is a third recess, and the fourth guide portion 1522 is a fifth protrusion matched with the third recess.

[0054] As another mode of the first guide structure 151, the first guide structure 151 further includes a first movable member, the first guide portion 1511 and the second guide portion 1512 are both concave, and the first guide portion 1511 and the second guide portion 1512 form a guiding match through the first movable member; As another form of the second guide structure 152, the second guide structure 152 also includes a second movable member, the third guide portion 1521 and the fourth guide portion 1522 are both concave, and the third guide portion 1521 and the fourth guide portion 1522 form a guiding fit through the second movable member.

[0055] It should be understood that the first movable member and the second movable member can be either balls or rollers.

[0056] Furthermore, in this embodiment, if Figure 1 , Figure 2 , Figures 7 to 10 As shown, in order to better realize the closed state or clutch state between the clutch 2 and the output end 111, the clutch 2 includes a connecting portion 22 and a movable portion 24, the connecting portion 22 is annular and is sleeved on the output end 111, the clutch 2 is connected to the output end 111 through the connecting portion 22 so that it can rotate relative to the output end 111, and the second mounting portion 21 is arranged on the outer peripheral surface of the connecting portion 22; the movable portion 24 is movably connected to the connecting portion 22, and the trigger member 3 is connected to the movable portion 24; and in the closed state, the movable portion 24 and the output end 111 form a transmission connection.

[0057] Furthermore, in the present embodiment, in order to make it easier to set the movable portion 24, an end face of the connecting portion 22 has an annular extension portion 23 extending along the axial direction of the output end 111, and the inner diameter of the annular extension portion 23 is larger than the outer diameter of the output end 111; it should be noted that the annular extension portion 23 can be a part of the connecting portion 22, that is, the two are a whole, or it can be two independent parts connected to each other; since the inner diameter of the extension portion is larger than the outer diameter of the output end 111, the gap between the extension portion and the output end 111 can be used to set the movable portion 24, thereby making the overall integration higher.

[0058] It should be noted that there are many ways to use the movable portion 24 to achieve a closed state or a clutch state between the clutch member 2 and the output end 111, which cannot be listed one by one. The following are two ways: The first way, such as Figure 7 , Figure 8As shown, the movable portion 24 is strip-shaped and hinged to the annular extension portion 23, and the hinge axis is parallel to the axis of the output member 11. A first toothing portion 241 is provided on the surface of the strip-shaped movable portion 24 on the side close to the output end 111 away from the hinge shaft, and a second toothing portion 113 is provided on the outer peripheral surface of the output shaft that is adapted to the first toothing portion 241. In a closed state, the strip-shaped movable portion 24 and the output end 111 are toothedly connected via the first toothing portion 241 and the second toothing portion 113.

[0059] It should be noted that the strip-shaped movable portion 24 is hinged to the annular extension portion 23. The strip-shaped movable portion 24 can be directly hinged to the annular extension portion 23, or the strip-shaped movable portion 24 can be first hinged to an independent intermediate component, and then the intermediate component and the annular extension portion 23 are fixedly connected.

[0060] Furthermore, in order to ensure the connection strength of the transmission connection formed by the clutch 2 and the output end 111, the number of the strip-shaped movable parts 24 is at least one. When the number of the strip-shaped movable parts 24 is two, the two strip-shaped movable parts 24 are arranged in an "eight" shape.

[0061] It should be noted that when the clutch member 2 adopts this method, it is only necessary to set a through hole on the connecting part 22 to allow the trigger member 3 to pass through, so that the strip-shaped movable part 24 can be driven by the trigger member 3 to move relative to the connecting part 22 or the output end 111. At the same time, the trigger member 3 can be fixedly connected to the side of the strip-shaped movable part 24 opposite to the first toothed part 241, or can be movably set on the same side as the first toothed part 241. When the number of strip-shaped movable parts 24 is two and they are set in an "eight" shape, the end of the trigger part is preferably in a "T" shape, and the two opposite ends are respectively connected to the two strip-shaped movable parts 24, and the common end passes through the through hole on the connecting part 22 that allows the trigger member 3 to pass through.

[0062] As the best option, the trigger member 3 can also include a lever hinged on the connecting part 22, one end of the lever is used to connect with the movable part 24, and the other end is used to receive the external force for triggering. At the same time, the lever is connected to the movable part 24, and can be connected by flexible materials such as ropes, or by rigid materials such as connecting rods and bolts.

[0063] The second method, such as Fig. 9 , Fig.10As shown, the movable portion 24 is annular, and the outer diameter of the annular movable portion 24 is not greater than the inner diameter of the annular extension portion 23, and the inner diameter of the annular movable portion 24 is not less than the outer diameter of the output end 111; the annular movable portion 24 is embedded between the annular extension portion 23 and the output end 111, and the annular movable portion 24 is slidable relative to the connecting portion 22 along the axial direction of the output end 111; the annular movable portion 24 is provided with a first toothed portion 241 at one end away from the connecting portion 22 along the axial direction of the output end 111; the outer peripheral surface of the output end 111 is provided with a second toothed portion 113 matched with the first toothed portion 241, and in a closed state, the annular movable portion 24 and the output end 111 are connected to each other through the first toothed portion 241 and the second toothed portion 113 to form a toothed connection.

[0064] It should be understood that, in the present embodiment, the first toothing portion 241 can be either a tooth on the end face of the annular movable portion 24, or a protrusion on the end face of the annular movable portion 24, or a depression on the end face of the annular movable portion 24, or the end face of the annular movable portion 24 as a whole is located on a cross section forming a certain angle with the radial cross section; accordingly, depending on the specific shape of the first toothing portion 241, the second toothing portion 113 only needs to be adapted thereto, for example, when the first toothing portion 241 is a tooth on the end face of the annular movable portion 24, the second toothing portion 113 is also a tooth adapted thereto; when the first toothing portion 241 is a protrusion on the end face of the annular movable portion 24, the second toothing portion 113 is a depression adapted thereto.

[0065] Furthermore, in order to facilitate the mutual engagement of the first toothing portion 241 and the second toothing portion 113, the transmission assembly 1 also includes a fixing ring 114, which is sleeved on the output end 111 and fixedly connected to the output end 111, and the second toothing portion 113 is arranged on the end surface of the fixing ring 114 near the clutch member 2; it should be understood that the fixing ring 114 can be a component independent of the output end 111 and fixedly connected to the output end 111.

[0066] It should be noted that, in this embodiment, since the first toothed portion 241 is provided on the annular movable portion 24, in order to make the movable portion 24 move along a desired trajectory when the trigger member 3 is subjected to an external force, and at the same time, in order to ensure that the movable portion 24 does not interfere with the output end 111 when in the separated state, a guide may be provided between the movable portion 24 and the annular extension member 23. For example, Fig. 9 , Fig.10As shown, a guide key 242 is provided on the movable part 24, and a key slot 231 matched with the guide key 242 is provided on the annular extension part 23; it should be understood that the guide key 242 and the key slot 231 are only for ensuring that the movable part 24 moves along the expected trajectory, therefore, the guide key 242 can also be provided on the annular extension part 23, and correspondingly, at this time, only the key slot 231 needs to be provided on the movable part 24.

[0067] It should also be noted that when the clutch 2 adopts this method, it is only necessary to set a through hole on the connecting part 22 to allow the trigger member 3 to pass through, so that the trigger member 3 can drive the movable part 24 to move relative to the connecting part 22 or the output end 111, so that the annular movable part 24 and the output end 111 are engaged or disengaged; as the best, the trigger member 3 also includes a lever hinged on the connecting part 22, one end of the lever is used to connect to the annular movable part 24, and the other end is used to receive the external force for triggering. At the same time, the lever is connected to the annular movable part 24, and can be connected by flexible materials such as ropes, or by rigid materials such as connecting rods and bolts.

[0068] Furthermore, if Figures 7 to 10 As shown, in order for the clutch 2 and the output end 111 to automatically return to the state before being acted upon by the external force when the external force is eliminated, the clutch 2 further includes an elastic member 25 for maintaining the movable portion 24 in the closed state, and the elastic member 25 is disposed between the movable portion 24 and the connecting portion 22; wherein the elastic member 25 can be either a spring or a rubber member with good elasticity.

[0069] As a second aspect of this embodiment, Figures 1 to 13 As shown, a photovoltaic device includes a first photovoltaic panel 41, a second photovoltaic panel 42 and the transmission structure as described above, wherein the first photovoltaic panel 41 is connected to the first mounting portion 112, and the second photovoltaic panel 42 is connected to the second mounting portion 21.

[0070] When the photovoltaic device needs to track sunlight to maximize power generation efficiency, it only needs the clutch 2 and the output end 111 to be in a closed state. At this time, a set of transmission components 1 can be used to drive the two photovoltaic panels to rotate synchronously; and when severe weather occurs, such as snow, hail or strong winds, the operator can use the trigger member 3 to switch the state between the clutch 2 and the output member 11 to a separated state, or a trigger mechanism can be set on the bracket used to support the transmission structure in the photovoltaic device, and the trigger member 3 can be brought into contact with the trigger mechanism through the rotation of the transmission component 1 to switch the state between the clutch 2 and the output member 11 to a separated state, or the trigger mechanism can be used to contact the trigger member 3, so that the transmission component 1 only drives the first photovoltaic panel 41 to rotate, so that the first photovoltaic panel 41 and the second photovoltaic panel 42 are stacked.

[0071] The transmission structure and photovoltaic device of this embodiment have the beneficial effects of reducing the overall cost and improving the safety of the transmission structure and the load driven by the transmission structure; specifically, the following are embodied in: First, the transmission structure proposed in this embodiment adjusts the connection mode between the output end 111 and the clutch 2 through the trigger member 3, so as to realize that the clutch 2 and the output end 111 have a closed state and a separated state. At the same time, a first mounting portion 112 for driving the first load is provided on the output end 111, and a second mounting portion 21 for driving the second load is provided on the clutch 2, so that when the clutch 2 and the output end 111 are in a closed state, the two loads are driven to do the same movement, and when the clutch 2 and the output end 111 are in a separated state, only the clutch connected to the first mounting portion 112 can be driven. The first load movement on part 112, that is, the transmission structure proposed in this embodiment, can not only drive the two groups of loads to do synchronous movement, reduce the use of the transmission structure, and reduce the cost, but also drive the two groups of loads to do asynchronous movement respectively, so that when there is a need to avoid danger, one group of loads can be driven by the transmission structure to overlap relative to the other group of loads to ensure the safety of the loads; at the same time, when applied to outdoor scenes, since the two groups of loads driven by the transmission structure proposed in this embodiment can be overlapped, the wind-exposed area is effectively reduced, that is, the impact of wind on the load and the transmission structure is reduced.

[0072] Second, in the transmission structure proposed in this embodiment, when the transmission component 1 therein adopts a guide structure 15 that extends spirally around the axis of the output member 11, when the load is affected by the outside and generates a force on the transmission structure, under the action of the spiral guide structure 15, the external force is decomposed into a part that is directly transmitted from the output member 11 to the support member 12 via the intermediate member 14 and a part that is transmitted from the input member 13 to the input member 13 via the intermediate member 14, and when the degree value of the angle formed by the guide structure 15 and the axis of the output member 11 is greater than 12 and less than 18, most of the force exerted by the load on the transmission structure will be directly transmitted to the support member 12. Therefore, at this time, only a very small force output by the external power source is required to keep the load relatively still. At the same time, since it can be known that the action of force is mutual, the external power source only needs to output a very small force to easily drive the load. Therefore, the transmission structure proposed in this embodiment has low power requirements for the power source.

[0073] Third, in the transmission structure proposed in this embodiment, the input member 13 in the transmission assembly 1 can be arranged coaxially with the support member 12, or a chamber 121 can be set in the support member 12, and the input member 13 is arranged in the chamber 121, which has a higher degree of integration, thereby making the overall structure more compact and the overall volume of the transmission structure smaller.

[0074] Fourthly, the clutch member 2 proposed in the present embodiment is provided with a fixed portion rotatably connected to the output end 111 and a movable portion 24 which can form a transmission connection with the output end 111. The transmission connection with the output end 111 is formed either through the end of the movable portion 24 or through the surface of the movable portion 24 on the side close to the output end 111. This can ensure the transmission connection between the clutch member 2 and the output end 111 when they are in a closed state. At the same time, it is also convenient to set the trigger member 3 to change the connection state between the clutch member 2 and the output end 111 under the action of an external force. That is, the trigger member 3 only needs to drive the movable portion 24 to move relative to the output end 111 so that the movable portion 24 is out of transmission connection with the output end 111. The trigger member 3 is subjected to an external force. The trigger member 3 can be contacted and triggered by an external component, or other transmission structures can drive the transmission structure proposed in the present embodiment so that the trigger member 3 contacts the outside and is triggered. Therefore, it is not only easy to use but also ensures the reliability of the trigger.

[0075] It should be noted that the use of terms such as "first" and "second" to limit components is only to facilitate the distinction between corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0076] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0077] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0078] The above is only a preferred embodiment of the present invention. It should be noted that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. A transmission structure, characterized in that: include The transmission assembly comprises an output end, wherein the output end is provided with a first mounting portion for fixedly connecting a first load; A clutch member connected to the output end and in a closed state in which the clutch member can be connected to the output end in a transmission manner or in a separated state in which the clutch member can rotate relatively; A second mounting portion, disposed on the clutch member, for fixedly connecting a second load; A trigger member connected to the clutch member, and used to complete the switching of the second mounting portion and the first mounting portion between the closed state and the separated state when subjected to an external force; In the closed state, the clutch member and the output end are drivably connected, and the transmission assembly can drive the first mounting portion and the second mounting portion to rotate synchronously; In the separated state, the clutch member and the output end are connected to each other so as to be relatively rotatable, and the transmission assembly can drive the first mounting portion to rotate relative to the second mounting portion.

2. The transmission structure according to claim 1, characterized in that: The transmission assembly includes Supports; an output member, the output end is arranged on the output member, the output member is movably connected to the support member, and the axis of the output member is defined by the support member, An input member, movably connected to the support member, and used to connect to an external power source; The output member is in transmission cooperation with the input member, and the transmission direction of the input member to the output member is in the same direction as the axis of the output member; Also included is a guide structure for guiding the movement of the output member, wherein the guide structure extends helically around the axis of the output member; When in use, driven by the input member and guided by the guide structure, the output member at least rotates around its axis.

3. The transmission structure according to claim 2, characterized in that: It also includes an intermediate piece, which is arranged between the input piece and the output piece, the intermediate piece is in driving connection with the input piece, and the intermediate piece is in driving cooperation with the output piece; The guide structure comprises a first guide structure and a second guide structure, at least one of the first guide structure and the second guide structure extending helically around the axis of the output member; The first guide structure includes a first guide portion and a second guide portion adapted to the first guide portion. The second guide structure includes a third guide portion and a fourth guide portion adapted to the third guide portion; Wherein, the first guide portion and the third guide portion are arranged on the middle piece.

4. The transmission structure according to claim 3, characterized in that: The intermediate member is columnar, one end of the intermediate member is connected to the input member, and the other end is provided with a first hole coaxial with the output member, one end of the support member is embedded in the first hole, the first guide portion is provided on the inner wall surface of the first hole, and the second guide portion is provided on the outer peripheral surface of the support member; The output member is annular and extends along the axial direction, and is sleeved on the intermediate member. The third guide portion is arranged on the outer peripheral surface of the intermediate member, and the fourth guide portion is arranged on the inner annular surface of the output member.

5. The transmission structure according to claim 4, characterized in that: One end of the intermediate member connected to the input member is provided with a second hole coaxial with the output member, and the input member includes a screw rod, and the screw rod is passed through the second hole.

6. The transmission structure according to claim 5, characterized in that: An internal thread matching the screw rod is arranged on the inner wall surface of the second hole.

7. The transmission structure according to claim 5, characterized in that: The input member further comprises a screw nut, and the screw nut is fixedly connected to the second hole.

8. The transmission structure according to claim 5, characterized in that: The second hole penetrates the middle member.

9. The transmission structure according to claim 3, characterized in that: The support member extends in the length direction, and a chamber coaxial with the axial direction of the output member is provided inside the support member. The support member is also provided with a strip hole, and the strip hole extends from the wall surface of the chamber in the radial direction of the support member and penetrates the chamber wall. The first guide structure is provided between the intermediate member and the support member; The intermediate member is annular and sleeved on the supporting member; The input member includes a screw rod and a screw rod nut, the screw rod nut is coaxially arranged with the output member and fixedly connected with the intermediate member, and the screw rod is passed through the screw rod nut; The output member is annular and extends along the axial direction, and is sleeved on the intermediate member. The third guide portion is arranged on the outer peripheral surface of the intermediate member, and the fourth guide portion is arranged on the inner annular surface of the output member.

10. The transmission structure according to claim 9, characterized in that: The first guide portion is arranged on the inner annular surface of the intermediate piece, and the second guide portion is arranged on the two side walls of the strip-shaped hole; And / or, the first guide portion is provided on the outer peripheral surface of the screw nut connected to the intermediate piece, and the second guide portion is provided on the inner wall of the chamber; And / or, the first guide portion is arranged on the inner annular surface of the intermediate member, and the second guide portion is arranged on the outer peripheral surface of the support member.

11. The transmission structure according to claim 9, characterized in that: The chamber extends toward at least one end along the axial direction of the output member and penetrates the chamber top wall of the extended end. The end of the screw rod used for connecting with an external power source extends from the extended end and protrudes from the end surface of the support member.

12. The transmission structure according to claim 3, characterized in that: The guiding direction of the first guiding structure is parallel to the axis of the output member, and the second guiding structure extends helically around the axis of the output member.

13. The transmission structure according to claim 12, characterized in that: The value of the angle formed by the second guide structure and the axis of the output member is greater than 12 and less than 18.

14. The transmission structure according to claim 3, characterized in that: The first guide portion is a second protrusion or a first depression, and the second guide portion is a second depression or a third protrusion matched with the second protrusion or the first depression; And / or, the third guide portion is a fourth protrusion or a third recess, and the fourth guide portion is a fourth recess or a fifth protrusion matched with the fourth protrusion or the third recess.

15. The transmission structure according to claim 3, characterized in that: The first guide structure further includes a first movable member, the first guide portion and the second guide portion are both concave, and the first guide portion and the second guide portion form a guiding match through the first movable member; And / or, the second guide structure further includes a second movable member, the third guide portion and the fourth guide portion are both concave, and the third guide portion and the fourth guide portion form a guiding fit through the second movable member.

16. The transmission structure according to claim 1, characterized in that: The clutch member includes a connecting portion and a movable portion, the connecting portion is annular and sleeved on the output end, the clutch member is connected to the output end through the connecting portion so as to be relatively rotatable, and the second mounting portion is arranged on the outer peripheral surface of the connecting portion; the movable portion is movably connected to the connecting portion, and the trigger member is connected to the movable portion; and in a closed state, the movable portion and the output end form a transmission connection.

17. The transmission structure according to claim 16, characterized in that: An annular extension portion extending along the axial direction of the output end is provided on one end surface of the connecting portion, and the inner diameter of the annular extension portion is greater than the outer diameter of the output end.

18. The transmission structure according to claim 17, characterized in that: The movable portion is strip-shaped and hinged to the annular extension portion, and the hinge axis is parallel to the axis of the output member. A first toothing portion is provided on the surface of the movable portion away from the hinge shaft and close to the output end, and a second toothing portion is provided on the outer peripheral surface of the output shaft that is adapted to the first toothing portion. In a closed state, the movable portion and the output end are tooth-engaged through the first toothing portion and the second toothing portion.

19. The transmission structure according to claim 18, characterized in that: The number of the movable parts is at least one, and when the number of the movable parts is two, the two movable parts are arranged in an "eight" shape.

20. The transmission structure according to claim 17, characterized in that: The movable portion is annular, and the outer diameter of the movable portion is not greater than the inner diameter of the annular extension portion, and the inner diameter of the movable portion is not less than the outer diameter of the output end; The movable portion is embedded between the annular extension portion and the output end, and the movable portion is slidable relative to the connecting portion along the axial direction of the output end; A first toothing portion is provided at one end of the movable portion away from the connecting portion along the axial direction of the output end; a second toothing portion matched with the first toothing portion is provided on the outer peripheral surface of the output end. In a closed state, the movable portion and the output end are tooth-engaged through the first toothing portion and the second toothing portion.

21. The transmission structure according to claim 20, characterized in that: It also includes a fixing ring, which is sleeved on the output end and fixedly connected to the output end, and the second toothed portion is arranged on the end surface of the fixing ring close to the clutch member.

22. The transmission structure according to claim 17, characterized in that: It also includes an elastic member for keeping the movable portion in the closed state, and the elastic member is arranged between the movable portion and the connecting portion.

23. A photovoltaic device, characterized in that: It comprises a first photovoltaic panel, a second photovoltaic panel and a transmission structure as claimed in any one of claims 1 to 22, wherein the first photovoltaic panel is connected to the first mounting portion, and the second photovoltaic panel is connected to the second mounting portion.

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