Adapter, power-assisted unit and photovoltaic tracking device

Abstract

The utility model relates to the technical field of energy accumulators, and relates to an adapter, a power assisting unit, a power assisting unit and a photovoltaic tracking device, in particular to the adapter, which comprises a main body, the main body is in an arc-shaped strip shape, and one end of the strip-shaped main body is provided with a hinge part used for being hinged with the outside; the first combination shaft is hinged to the other end of the main body and protrudes out of the inner arc face of the main body, the second combination shaft is hinged to the main body and protrudes out of the outer arc face of the main body, and the axis of the arc center of the main body is parallel to the axis of the hinge part, the axis of the first combination shaft and the axis of the second combination shaft. In the axis direction of the hinge part, the thickness of the end, provided with the hinge part, of the main body is not larger than the length of the first combination shaft and / or the second combination shaft. The power assisting unit has the advantages that the pressure borne by the adapter is reduced, the service life of the adapter is prolonged, and the energy utilization rate of the power assisting unit is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of accumulators, and in particular to an adapter, a power-assisting unit and a photovoltaic tracking system. Background Art

[0002] Shaft drive technology is widely used. For example, a window is mounted on a window frame via a rotating shaft. Another example is a car gull-wing door or trunk door mounted on the car body via a rotating shaft. Another example is a photovoltaic tracking system where photovoltaic panels are connected to a fixed bracket via a rotating shaft. Another example is a bicycle wheel connected to the frame.

[0003] In applications such as these, the rotating shaft is usually set horizontally, or in other words, it is not set perpendicular to the ground; at this time, the load driven by the rotating shaft, such as windows, car doors, photovoltaic panels, etc., is offset, resulting in the center of gravity of the load driven by the rotating shaft and the central axis of the rotating shaft being unable to coincide. Therefore, during the rotation process, the center of gravity of the load driven by the rotating shaft will also rotate around the rotating shaft. Therefore, when the rotating shaft drives the load to move, the following two situations will occur: First, the center of gravity moves from a high place to a low place. At this time, the torque output by the power source (such as a motor) used to drive the load to move through the rotating shaft is usually to keep the load from rotating freely, that is, to overcome the influence of gravity; second, the center of gravity moves from a low place to a high place. At this time, the torque output by the power source must not only overcome the effect of gravity, but also be able to drive the load to move.

[0004] In the above two situations, when the center of gravity of the load and the central axis of the rotating shaft are at the same horizontal position, the gravity effect of the load is the greatest.

[0005] As a result, when selecting a power source to drive a load driven by a non-vertically set rotating shaft to rotate around the axis, the selection of the power source must consider whether the torque it outputs can meet the situation when the center of gravity of the load is at the same horizontal position as the central axis of the rotating shaft. After the power source drives the load to move around the axis, the power source will be in excess, thereby increasing costs.

[0006] To solve this problem, the applicant previously filed a Chinese patent application with application number CN202420797690.7, which disclosed a power assist unit and a photovoltaic tracking system for a rotating shaft, which can effectively assist the rotating shaft. However, in actual application, the adapter is easily damaged, resulting in a short service life of the power assist unit. The resulting increase in cost will make the adapter easily damaged, affecting the service life of the adapter. This is a problem that urgently needs to be solved. Utility Model Content

[0007] The first object of the present invention is to provide an adapter to solve the problem of short service life of existing adapters. The second object of the present invention is to provide a power assist unit. The third object of the present invention is to provide a photovoltaic tracking system.

[0008] The implementation of this utility model is completed by the following technical solutions:

[0009] As a first aspect of the present invention, an adapter comprises:

[0010] A main body, wherein the main body is in an arc-shaped strip, and one end of the strip-shaped main body is provided with a hinge portion for hinged connection with the outside;

[0011] The first coupling shaft is hinged to the other end of the main body and protrudes from the inner arc surface of the main body.

[0012] The second coupling shaft is hinged to the main body, and the second coupling shaft protrudes from the outer arc surface of the main body.

[0013] The arc center axis of the main body, the axes of the hinge part, the first connecting axis, and the second connecting axis are parallel;

[0014] Along the axial direction of the hinge portion, the thickness of one end of the main body where the hinge portion is provided is not greater than the length of the first coupling shaft and / or the second coupling shaft.

[0015] Optionally, the main body includes a first main body and a second main body, and along the axis direction of the hinge part, the first main body and the second main body are arranged side by side and are mirror images of each other.

[0016] Optionally, a first reinforcement portion is provided on the first body, and / or a second reinforcement portion is provided on the second body.

[0017] Optionally, the first reinforcement portion is a protrusion provided on a surface of the first body close to the second body, and / or the first reinforcement portion is a depression provided on a surface of the first body away from the second body, and / or the first reinforcement portion is an extension portion extending from a periphery of the surface of the first body close to the second body toward the second body;

[0018] and / or

[0019] The second reinforcement portion is a protrusion provided on the surface of the second body close to the first body, and / or the second reinforcement portion is a depression provided on the surface of the second body away from the first body, and / or the second reinforcement portion is an extension portion extending from the periphery of the surface of the second body close to the first body toward the direction of the first body.

[0020] Optionally, the adapter further includes a first extension section, which extends from the other end of the main body along the radial direction of the arc-shaped main body in a direction away from the arc center, and the first coupling shaft is hinged to the first extension section.

[0021] Optionally, the adapter further includes a second extension section, which extends from the inner arc surface of the main body along the radial direction of the arc-shaped main body toward the arc center, and the second coupling shaft is hinged to the second extension section.

[0022] Optionally, the first coupling shaft is a roller or a bearing, and / or the second coupling shaft is a roller or a bearing.

[0023] Optionally, the axis of the hinge portion, the axis of the first coupling axis, and the axis of the second coupling axis are located in the same plane.

[0024] As a second aspect of the present invention, the power assist unit includes:

[0025] an active member connected to an external load, wherein the length of the active member along the axis of the hinge portion is not less than the larger of the first coupling axis and the second coupling axis;

[0026] The retaining frame includes a first frame body that forms a rotational fit with one end of the active member and a second frame body that forms a rotational fit with the other end of the active member, wherein the first frame body and the second frame body are fixedly connected;

[0027] The adapter for the power-assisting unit is further provided, the adapter being arranged between the first frame and the second frame, the adapter being hingedly connected to the retaining frame via the hinge portion, the retaining frame being provided with a relief portion for avoiding a portion of the main body for hingedly connecting the first and second coupling shafts;

[0028] It also includes an elastic member, one end of which is connected to the retaining frame, and an avoidance groove is provided on the outer peripheral surface of the active member. When the main body is located in the give way portion, the avoidance groove cooperates with the first coupling shaft, and drives the elastic member to deform through the adapter.

[0029] As a third aspect of the present invention, a photovoltaic tracking device includes the power-boosting unit described above.

[0030] The advantages of the present invention are: reducing the pressure on the adapter, increasing the service life of the adapter, and improving the energy utilization rate of the power-assisting unit.

[0031] First, the end portion of one side of the adapter proposed in the present invention is hinged to the outside, and along the axial direction of the hinged portion, the size of one side of the main body is not greater than the length of the first combining shaft and / or the second combining shaft, so that the adapter increases the axial size of the first combining shaft and the second combining shaft while ensuring the swinging flexibility, so that when the adapter cooperates with the outside through the first combining shaft and the second combining shaft, the contact area between the first combining shaft and the second combining shaft and the outside is increased, the pressure on the adapter is reduced, and damage to the adapter is avoided, thereby increasing the service life of the adapter.

[0032] Second, by providing a first reinforcement part on the first main body and a second reinforcement part on the second main body proposed in the utility model, deformation of the first main body or the second main body is avoided under the action of the first reinforcement part and the second reinforcement part, the strength of the adapter is improved, and the service life of the adapter is further increased.

[0033] Third, in the power-assisting unit proposed in the present invention, a retaining frame connected to the adapter is provided with a yielding portion for avoiding one side of the main body. When the adapter cooperates with the outer peripheral surface of the active part through the first coupling shaft, the retaining frame is prevented from interfering with the swing of the adapter. There is no need to reserve space for the swing of the adapter in the axial direction of the retaining frame when the retaining frame is connected to the active part. On the premise of ensuring the axial size of the power-assisting unit, the second coupling shaft and the second axial size are made larger, or consistent with the axial size of the active part, thereby reducing the pressure on the adapter and further increasing the service life of the adapter.

[0034] Fourth, the adapter proposed in the present invention is provided with a hinged portion hinged to the outside, and the axis of the hinged portion, the axis of the second coupling shaft and the axis of the first coupling shaft are in the same plane. Therefore, during the operation of the power assist unit, when the second coupling shaft is embedded in the retaining groove, only a small force is required at the first coupling shaft to ensure the fit between the second coupling shaft and the retaining groove. When the first coupling shaft is embedded in the avoidance groove, only a small force is required at the second coupling shaft to ensure the fit between the first coupling shaft and the avoidance groove. This minimizes the holding force of the active part and the fixed part on the adapter; it saves more effort in the process of the retaining frame driving the adapter to rotate, thereby improving energy utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The following figures describe in detail exemplary embodiments disclosed in this application. Identical reference numerals denote similar structures in several views of the drawings. Those skilled in the art will appreciate that these embodiments are non-limiting, exemplary embodiments, and that the drawings are for illustration and description purposes only and are not intended to limit the scope of this application. Other embodiments may also accomplish the same purpose of this application. It should be understood that the drawings are not drawn to scale. Among them:

[0036] Figure 1 This is a schematic diagram of the adapter in an embodiment of the present application;

[0037] Figure 2 for Figure 1 A front view schematic diagram of

[0038] Figure 3 for Figure 1 Schematic top view of

[0039] Figure 4 This is a schematic diagram of a power assist unit in an embodiment of the present application;

[0040] Figure 5 for Figure 4 Exploded diagram of the central power assist unit.

[0041] The marks in the figure are:

[0042] 1. Adapter;

[0043] 11. Main body; 111. Hinge portion; 112. First main body; 1121. First reinforcement portion; 113. Second main body; 1131. Second reinforcement portion; 114. First extension section; 115. Second extension section;

[0044] 12. First joint axis; 13. Second joint axis;

[0045] 2. Active parts; 21. Avoidance groove;

[0046] 3. Cage; 31. First frame; 32. Second frame;

[0047] 4. Elastic parts;

[0048] 5. Fixing piece; 51. Retaining groove. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. It is understood that, in the absence of conflict, some technical means of the various embodiments described herein can be replaced or combined with each other.

[0050] In the description of this application, if the terms "first," "second," etc. appear, they are used solely to distinguish the objects being described and do not convey any order or technical meaning. Therefore, an object defined as "first," "second," etc. may explicitly or implicitly include one or more of such objects. Furthermore, "a" or "an," and similar terms, do not indicate a quantitative limitation, but rather indicate the presence of at least one, and "plurality" means at least two.

[0051] In the description of this application, if there are terms such as "connection", "abutment", "installation", "fixation", "contact", "support", "housing", etc., they should be understood in a broad sense. For example, "connection" can be a split connection or an integrated connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a non-detachable connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can also be the internal connection of two elements or the interaction relationship between two elements. For another example, "abutment" can be a direct abutment or an indirect abutment through an intermediate medium. For another example, "housing" does not necessarily mean complete housing of the whole. The concept also includes the housing of a part that protrudes from the outside. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0052] In the description of this application, if there are similar terms such as “A is connected to B in a rotatable manner”, it means that A and B are directly or indirectly connected, and A can rotate relative to B.

[0053] In the description of this specification, reference to "one embodiment" or "some embodiments" means that one or more embodiments of the present application include a particular feature, structure, or characteristic described in conjunction with the embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in other embodiments," etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized.

[0054] like Figures 1 to 3 As shown, as a first aspect of this embodiment, a transition piece is disclosed, comprising:

[0055] The main body 11 is in the shape of an arc strip, and one end of the strip-shaped main body 11 is provided with a hinge portion 111 for hinged connection with the outside;

[0056] The first coupling shaft 12 is hinged to the other end of the main body 11 and protrudes from the inner arc surface of the main body 11.

[0057] The second coupling shaft 13 is hinged to the main body 11 and protrudes from the outer arc surface of the main body 11.

[0058] The arc center axis of the main body 11, the axis of the hinge portion 111, the first connecting axis 12, and the second connecting axis 13 are parallel;

[0059] Along the axial direction of the hinge portion 111 , the thickness of one end of the main body 11 where the hinge portion 111 is provided is not greater than the length of the first coupling shaft 12 and / or the second coupling shaft 13 .

[0060] It should be noted that in this embodiment, the adapter 1 is used for the power-assisting unit, can swing relative to the retaining frame 3 in the power-assisting unit, and is provided with a first coupling shaft 12 and a second coupling shaft 13, so that the adapter 1 cooperates with the active member 2 or the external fixed structure in the power-assisting unit through the first coupling shaft 12 and the second coupling shaft 13, and the deformation, release or retention device of the elastic member 4 in the power-assisting unit is realized through the conversion of the adapter 1. The main body 11 is used to set the hinge part 111, the first coupling shaft 12 and the second coupling shaft 13. On the basis of satisfying the function of the main body 11, the main body 11 includes but is not limited to the following forms:

[0061] First, the main body 11 is an integrally formed design, and holes or grooves for installing the first combining shaft 12 and the second combining shaft 13 are provided on the main body 11, and the first combining shaft 12 and the second combining shaft 13 are rotatably connected in the through holes or grooves.

[0062] The second type, such as Figures 1 to 3 As shown, the main body 11 includes a first main body 112 and a second main body 113. Along the axial direction of the hinge part 111, the first main body 112 and the second main body 113 are arranged side by side, and the first combining shaft 12 and the second combining shaft 13 are arranged between the first main body 112 and the second main body 113. The first combining shaft 12 is respectively connected to the first main body 112 and the second main body 113, and the second combining shaft 13 is respectively connected to the first main body 112 and the second main body 113.

[0063] Furthermore, in this embodiment, along the axial direction of the hinge part 111, the thickness of one end of the main body 11 where the hinge part 111 is provided is not greater than the length of the first combining axis 12 and / or the second combining axis 13, that is, when the main body 11 is integrally formed, the axial dimension of the through hole or through groove on the main body 11 in the axial direction of the hinge part 111 is greater than or equal to the axial dimension of one side of the main body 11; or when the main body 11 includes a first main body 112 and a second main body 113, the spacing between the first main body 112 and the second main body 113 on the other side of the main body 11 is greater than or equal to the axial dimension of one side of the main body 11; that is, along the axial direction of the hinge part 111, the dimension of one end of the main body 11 where the hinge part 111 is provided is at least smaller than the dimension of the portion of the main body 11 used to connect the first combining axis 12 and the second combining axis 13.

[0064] It should be noted that the first body 112 and the second body 113 can be mirror images of each other, and their structures can also be different. On the basis of satisfying the functions of the first body 112 and the second body 113, in order to increase the strength of the first body 112 and the second body 113 and increase the service life of the adapter 1, Figures 1 to 3 As shown, a first reinforcement portion 1121 may be provided on the first body 112 , and / or a second reinforcement portion 1131 may be provided on the second body 113 .

[0065] Furthermore, in this embodiment, the implementation of the first reinforcement portion 1121 includes but is not limited to the following:

[0066] First, the first reinforcement portion 1121 is a protrusion provided on a surface of the first body 112 close to the second body 113 .

[0067] Second, the first reinforcement portion 1121 is a depression provided on a surface of the first body 112 away from the second body 113 .

[0068] Third, the first reinforcement portion 1121 is an extension portion extending from the periphery of the surface of the first body 112 close to the second body 113 toward the second body 113 .

[0069] Furthermore, in this embodiment, the implementation of the second reinforcement portion 1131 includes but is not limited to the following:

[0070] First, the second reinforcement portion 1131 is a protrusion provided on a surface of the second body 113 close to the first body 112 .

[0071] Second, the second reinforcement portion 1131 is a depression provided on a surface of the second body 113 away from the first body 112 .

[0072] Third, the second reinforcement portion 1131 is an extension portion extending from the periphery of the surface of the second body 113 close to the first body 112 toward the first body 112 .

[0073] It should be noted that, in this embodiment, in order to make the first coupling shaft 12 more convenient to cooperate with the outside, and to make the first coupling shaft 12 easier to be hinged with the main body 11, as shown in FIG. Figure 1 and Figure 2 As shown, the main body 11 further includes a first extension section 114 , which extends from the other end of the main body 11 along the radial direction of the arc-shaped main body 11 away from the arc center, and the first coupling shaft 12 is hinged to the first extension section 114 .

[0074] It should be noted that, in this embodiment, in order to make the second coupling shaft 13 more convenient to cooperate with the outside, and to make the second coupling shaft 13 easier to be hinged with the main body 11, as shown in FIG. Figure 1 and Figure 2 As shown, the main body 11 further includes a second extension section 115 , which extends from the inner arc surface of the main body 11 along the radial direction of the arc-shaped main body 11 toward the arc center, and the second coupling shaft 13 is hinged to the second extension section 115 .

[0075] It should be noted that, in this embodiment, Figures 1 to 5 As shown, in order to reduce the friction when the first combining shaft 12 cooperates with the outside, the second combining shaft 13 is a roller or a cylindrical bearing rotatably connected to the main body 11; similarly, in order to reduce the friction when the second combining shaft 13 cooperates with the outside, the first combining shaft 12 is a roller or a cylindrical bearing rotatably connected to the main body 11.

[0076] It should be noted that, in this embodiment, in order to minimize the external holding force on the first and second coupling shafts 12 and 13 of the adapter 1, the adapter 1 is more labor-saving during operation. Figure 2 As shown, the axis of the hinge portion 111 , the axis of the second coupling axis 13 , and the axis of the first coupling axis 12 are in the same plane.

[0077] like Figure 4 and Figure 5 As shown, as a second aspect of this embodiment, a power assist unit is disclosed, comprising:

[0078] An active member 2 connected to an external load, wherein the length of the active member 2 along the axis of the hinge portion 111 is not less than the larger length of the first coupling shaft 12 or the second coupling shaft 13;

[0079] The retaining frame 3 includes a first frame body 31 that is rotatably engaged with one end of the active member 2 and a second frame body 32 that is rotatably engaged with the other end of the active member 2, wherein the first frame body 31 and the second frame body 32 are fixedly connected;

[0080] The adapter 1 for the power-assisting unit is provided between the first frame 31 and the second frame 32. The adapter 1 is hinged to the retaining frame 3 via the hinge portion 111. The retaining frame 3 is provided with a clearance portion for avoiding the portion of the main body 11 for hinged connection of the first and second coupling shafts 12 and 13.

[0081] It also includes an elastic member 4, one end of which is connected to the retaining frame 3. The outer peripheral surface of the active member 2 is also provided with an avoidance groove 21. When the main body 11 is located in the give way portion, the avoidance groove 21 cooperates with the first coupling shaft 12, and drives the elastic member 4 to deform through the adapter 1.

[0082] like Figure 4 and Figure 5 As shown, as a third aspect of this embodiment, a photovoltaic tracking device is disclosed, including the power-boosting unit described above.

[0083] The advantages of this embodiment are: reducing the pressure on the adapter 1, increasing the service life of the adapter 1, and improving the energy utilization rate of the power-assisting unit.

[0084] First, the end of one side of the adapter 1 proposed in this embodiment is hinged to the outside, and along the axial direction of the hinged portion 111, the size of one side of the main body 11 is not greater than the length of the first binding axis 12 and / or the second binding axis 13, so that the adapter 1 increases the axial size of the first binding axis 12 and the second binding axis 13 while ensuring the swing flexibility, so that when the adapter 1 cooperates with the outside through the first binding axis 12 and the second binding axis 13, the contact area between the first binding axis 12 and the second binding axis 13 and the outside is increased, thereby reducing the pressure on the adapter 1 and avoiding damage to the adapter 1, thereby increasing the service life of the adapter 1.

[0085] Second, by providing a first reinforcement portion 1121 on the first main body 112 and a second reinforcement portion 1131 on the second main body 113 proposed in this embodiment, deformation of the first main body 112 or the second main body 113 is avoided under the action of the first reinforcement portion 1121 and the second reinforcement portion 1131, the strength of the adapter 1 is improved, and the service life of the adapter 1 is further increased.

[0086] Third, in the power-assisting unit proposed in this embodiment, a yield portion for avoiding one side of the main body 11 is provided on the retaining frame 3 connected to the adapter 1. When the adapter 1 cooperates with the outer peripheral surface of the active part 2 through the first coupling shaft 12, the retaining frame 3 is prevented from interfering with the swing of the adapter 1. There is no need to reserve space for the adapter 1 to swing in the axial direction of the retaining frame 3 when the retaining frame 3 is connected to the active part 2. On the premise of ensuring the axial size of the power-assisting unit, the second coupling shaft 13 and the second axial size are made larger, or consistent with the axial size of the active part 2, thereby reducing the pressure on the adapter 1 and further increasing the service life of the adapter 1.

[0087] Fourth, the adapter 1 proposed in this embodiment is provided with a hinged portion 111 hinged to the outside, and the axis of the hinged portion 111, the axis of the second coupling shaft 13 and the axis of the first coupling shaft 12 are in the same plane. Therefore, during the operation of the power assist unit, when the second coupling shaft 13 is embedded in the retaining groove 51, only a small force is required at the first coupling shaft 12 to ensure the cooperation between the second coupling shaft 13 and the retaining groove 51. When the first coupling shaft 12 is embedded in the avoidance groove 21, only a small force is required at the second coupling shaft 13 to ensure the cooperation between the first coupling shaft 12 and the avoidance groove 21. This minimizes the resistance of the active part 2 and the fixing part 5 to the adapter 1; it saves more effort in the process of the retaining frame 3 driving the adapter 1 to rotate, thereby improving energy utilization.

Claims

1. An adapter, characterized in that: include: A main body, wherein the main body is in an arc-shaped strip, and one end of the strip-shaped main body is provided with a hinge portion for hinged connection with the outside; The first coupling shaft is hinged to the other end of the main body and protrudes from the inner arc surface of the main body. The second coupling shaft is hinged to the main body, and the second coupling shaft protrudes from the outer arc surface of the main body. The arc center axis of the main body, the axes of the hinge part, the first connecting axis, and the second connecting axis are parallel; Along the axial direction of the hinge portion, the thickness of one end of the main body where the hinge portion is provided is not greater than the length of the first coupling shaft and / or the second coupling shaft.

2. The adapter according to claim 1, wherein: The main body includes a first main body and a second main body. Along the axis direction of the hinge part, the first main body and the second main body are arranged side by side and are mirror images of each other.

3. The adapter according to claim 2, wherein: The first body is provided with a first reinforcement portion, and / or the second body is provided with a second reinforcement portion.

4. The adapter according to claim 3, wherein: The first reinforcement portion is a protrusion provided on a surface of the first body close to the second body, and / or the first reinforcement portion is a depression provided on a surface of the first body away from the second body, and / or the first reinforcement portion is an extension portion extending from a periphery of the surface of the first body close to the second body toward the second body; and / or The second reinforcement portion is a protrusion provided on the surface of the second body close to the first body, and / or the second reinforcement portion is a depression provided on the surface of the second body away from the first body, and / or the second reinforcement portion is an extension portion extending from the periphery of the surface of the second body close to the first body toward the direction of the first body.

5. The adapter according to claim 1, wherein: It also includes a first extension section, which extends from the other end of the main body along the radial direction of the arc-shaped main body toward a direction away from the arc center, and the first combining shaft is hinged to the first extension section.

6. The adapter according to claim 1, wherein: It also includes a second extension section, which extends from the inner arc surface of the main body along the radial direction of the arc-shaped main body toward the arc center, and the second connecting shaft is hinged to the second extension section.

7. The adapter according to any one of claims 1 to 6, characterized in that: The first coupling shaft is a roller or a bearing, and / or the second coupling shaft is a roller or a bearing.

8. The adapter according to any one of claims 1 to 6, wherein: The axis of the hinge portion, the axis of the first connecting axis, and the axis of the second connecting axis are located in the same plane.

9. A power-assisting unit, characterized in that: include: an active member connected to an external load, wherein the length of the active member along the axis of the hinge portion is not less than the larger of the first coupling axis and the second coupling axis; The retaining frame includes a first frame body that forms a rotational fit with one end of the active member and a second frame body that forms a rotational fit with the other end of the active member, wherein the first frame body and the second frame body are fixedly connected; The adapter for the power-assisting unit further comprises the adapter according to any one of claims 1 to 7, the adapter being arranged between the first frame and the second frame, the adapter being hingedly connected to the retaining frame via the hinge portion, the retaining frame being provided with a relief portion for avoiding a portion of the main body for hingedly connecting the first and second coupling shafts; It also includes an elastic member, one end of which is connected to the retaining frame, and an avoidance groove is provided on the outer peripheral surface of the active member. When the main body is located in the give way portion, the avoidance groove cooperates with the first coupling shaft, and drives the elastic member to deform through the adapter.

10. Photovoltaic tracking device, characterized in that: Comprising the power-assisting unit as claimed in claim 9.

Images