A rooftop photovoltaic lifting device

Abstract

The present invention relates to the technical field of lifting devices, and in particular discloses a rooftop photovoltaic lifting device, comprising a lifting mechanism including a frame, a power member provided on the frame, and a cable connected to the power member; a fence including a main frame, a fence installed on the main frame, and an expansion bucket rotatably installed on the main frame; and a stabilizing mechanism including a moving body and a strap connected between the moving body and the main frame; the cable is connected to the moving body, the strap collides with the expansion bucket, and when the moving body pulls the strap, the strap can push the expansion bucket to rotate in the direction of the fence. By providing the fence and the stabilizing mechanism, the cable pulls the moving body to move, and the strap is pulled by the moving body. During this process, the tightening of the strap will conflict with the expansion bucket, causing the expansion bucket to rotate in the direction of the fence, thereby preventing the photovoltaic panel from detaching, and lifting the photovoltaic panel to the roof through the cable.

Description

Technical Field

[0001] The present invention relates to the technical field of lifting devices, and in particular to a rooftop photovoltaic lifting device. Background Art

[0002] The core principle of solar photovoltaic power generation is the photovoltaic effect, whereby sunlight strikes a semiconductor material, generating electron-hole pairs. These electrons then flow through a circuit to generate current, thereby converting electrical energy into electricity. Traditional solar photovoltaic technology primarily relies on the manufacture of silicon wafers, but this technology has limitations such as high cost and low energy efficiency. In recent years, solar photovoltaic technology has continued to innovate, with technologies such as thin-film photovoltaics and organic photovoltaics addressing challenges that were difficult to overcome with traditional technologies, making them more suitable for practical application from both a technical and economic perspective. Due to its clean, environmentally friendly, and renewable nature, solar photovoltaic power generation has become one of the mainstream technologies in the renewable energy sector, and rooftop photovoltaics are also a frequently used photovoltaic power generation solution in practical applications.

[0003] Since photovoltaic modules are fragile items, rooftop photovoltaic panels are prone to collisions during manual transportation, causing damage to the equipment. Therefore, this device was invented. Summary of the Invention

[0004] In view of the problem that photovoltaic panels are difficult to transport in the above-mentioned prior art, the present invention is proposed.

[0005] Therefore, an object of the present invention is to provide a rooftop photovoltaic lifting device.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: a rooftop photovoltaic lifting device, comprising: a lifting mechanism including a frame, a power member mounted on the frame, and a cable connected to the power member; a frame including a main frame, a partition mounted on the main frame, and an expansion bucket rotatably mounted on the main frame; and a stabilizing mechanism including a moving body and a strap connected between the moving body and the main frame.

[0007] The pulling rope is connected to the moving body, and the binding belt is in conflict with the unfolding bucket. When the moving body pulls the binding belt, the binding belt can push the unfolding bucket to rotate toward the fence.

[0008] As a preferred solution of the rooftop photovoltaic lifting device described in the present invention, wherein: the unfolding bucket includes a base plate rotatably connected to the main frame, and a bucket enclosure plate installed on the base plate; the binding strap has a fixed end fixedly connected to the partition, and a connecting end connected to the movable body, and the connection position between the fixed end and the partition is located below the base plate.

[0009] As a preferred solution of the rooftop photovoltaic lifting device described in the present invention, wherein: a groove is provided on the bottom plate, a close mechanism is installed on the bottom plate at the through groove, and the bucket plate is connected to the bottom plate through the close mechanism; the close mechanism includes a guide column, which is fixed to the inside of the through groove; a resistance body, which is slidably sleeved on the outside of the guide column, and the binding strap is in abutment with the resistance body; a movable plate, which is installed on the resistance body, and the bucket plate is installed on the movable plate; when the movable body pulls the binding strap, it can push the resistance body, thereby pushing the movable plate to move toward the direction of the fence.

[0010] As a preferred solution of the rooftop photovoltaic lifting device of the present invention, an elastic member is installed on the guide column, the elastic member abuts against the resistance body, and the resistance body abuts against the elastic member when moving toward the fence direction.

[0011] As a preferred solution of the rooftop photovoltaic lifting device described in the present invention, the resistance body includes a socket portion socketed on the outside of the guide column, a first extension end parallel to the movable plate, and a second extension end having an angle with the first extension end.

[0012] As a preferred solution of the rooftop photovoltaic lifting device of the present invention, the first extending end is provided with a first through slot, the second extending end is provided with a second through slot, and the binding strap passes through the first through slot and the second through slot.

[0013] As a preferred solution of the rooftop photovoltaic lifting device of the present invention, wherein: the barrier has a contact strip protruding toward the side;

[0014] The movable plate is provided with raised areas at both ends, and the raised areas can be used to support the photovoltaic panels.

[0015] As a preferred solution of the rooftop photovoltaic lifting device described in the present invention, it further includes a rotating mechanism and a locking mechanism, and the base plate is connected to the main frame through the rotating mechanism; the rotating mechanism includes a fixed shaft installed on the main frame, and a rotating sleeve rod installed on the base plate and sleeved on the outside of the fixed shaft; the locking mechanism includes a bracket installed on the main frame, and a lifting positioning member slidably installed on the bracket; when the lifting positioning member is interfered with, the rotating sleeve rod can rotate normally, and when the lifting positioning member is not interfered with, the lifting positioning member can lock the rotating sleeve rod.

[0016] As a preferred solution of the roof photovoltaic lifting device described in the present invention, a groove is provided on the rotating sleeve rod; the lifting positioning member includes a column slidably mounted on the bracket, and a locking tongue provided at the end of the column and extending into the groove.

[0017] As a preferred solution of the rooftop photovoltaic lifting device described in the present invention, the groove includes an arc area and a positioning area; the arc area is coaxial with the fixed axis; and the extension line of the positioning area passes through the axis of the fixed axis.

[0018] The beneficial effects of the present invention are as follows: by setting up a frame and a stabilizing mechanism, the cable pulls the moving body to move, and the strap is pulled by the moving body. During this process, the tightening of the strap will resist the expansion bucket, causing the expansion bucket to rotate toward the fence, thereby preventing the photovoltaic panel from detaching, and lifting the photovoltaic panel to the roof through the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the rooftop photovoltaic lifting device of the present invention.

[0021] Figure 2 It is a schematic diagram of the fence structure described in the present invention.

[0022] Figure 3 It is a side view of the fence described in the present invention.

[0023] Figure 4 The present invention Figure 3 Enlarged view of point A in the middle.

[0024] Figure 5 It is a structural schematic diagram of the approach mechanism described in the present invention.

[0025] Figure 6 It is a schematic diagram of the expansion bucket structure described in the present invention.

[0026] Figure 7 It is a schematic structural diagram of the locking mechanism and the rotating mechanism described in the present invention.

[0027] Figure 8 It is a schematic structural diagram of the rotating mechanism described in the present invention.

[0028] Reference numerals: 100, lifting mechanism; 101, frame; 101a, stabilizing body; 101b, extension arm; 102, power member; 103, cable; 200, frame; 201, main frame; 202, partition; 202a, contact strip; 203, unfolding bucket; 203a, bucket enclosure; 203b, bottom plate; 203c, through groove; 300, stabilizing mechanism; 301, moving body; 302, strap; 302a, fixed end; 302b, connecting end; 400, approaching mechanism; 401, Guide column; 402, abutment; 402a, sleeve portion; 402b, first extension end; 402c, second extension end; 402d, first through slot; 402e, second through slot; 403, movable plate; 404, elastic member; 500, rotating mechanism; 501, fixed axis; 502, rotating sleeve rod; 503, groove; 503a, arc-shaped area; 503b, positioning area; 600, locking mechanism; 601, bracket; 602, lifting and positioning member; 602a, column; 602b, lock tongue. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it constitute a separate or selective embodiment that is mutually exclusive with other embodiments.

[0032] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0033] Example 1, with reference to Figures 1 to 5, provides a rooftop photovoltaic lifting device, including a lifting mechanism 100, including a frame 101, a power piece 102 arranged on the frame 101, and a cable 103 connected to the power piece 102. The lifting mechanism 100 is the main structure for lifting photovoltaic panels, wherein the frame 101 can be a ground-mounted frame structure, which has a stabilizing body 101a placed on the ground for supporting the entire device, and also requires an extension arm 101b. When the stabilizing body 101a is located on the roof, the extension arm 101b can extend outside the roof, thereby facilitating the lifting of photovoltaic panels. The power piece 102 is a driving motor, which is connected to the rope shaft. The cable 103 is wound around the outside of the rope shaft, and the end away from the rope shaft can extend outside the roof through the extension arm 101b.

[0034] The rooftop photovoltaic lifting device includes a frame 200, including a main frame 201, a partition 202 installed on the main frame 201, and an expansion bucket 203 rotatably installed on the main frame 201; the main frame 201 is preferably a U-shaped frame, and its main function is to provide a space for loading photovoltaic panels. The partition 202 divides the internal area of ​​the main frame 201 into two parts, and the two parts are located on both sides of the partition 202. There are two expansion buckets 203 on the main frame 201, which are symmetrically installed on the main frame 201. The partition 202 separates the two expansion buckets 203, and the expansion bucket 203 can rotate, so that the entrance of the expansion bucket 203 can be deflected in the direction away from the partition 202, thereby facilitating the loading of the photovoltaic panel into the inner side of the expansion bucket 203.

[0035] The rooftop photovoltaic lifting device includes a stabilizing mechanism 300, including a moving body 301, and a strap 302 connected between the moving body 301 and the main frame 201; the cable 103 is connected to the moving body 301, and the strap 302 conflicts with the expansion bucket 203. When the moving body 301 pulls the strap 302, the strap 302 can push the expansion bucket 203 to rotate toward the fence 202. In this way, the two photovoltaic panels are placed on the inner sides of the two expansion buckets 203 respectively, and the power part 102 works to rewind the cable 103, and the cable 103 pulls the moving body 301 to move. At this time, the strap 302 is pulled by the moving body 301. In this process, the tightening of the strap 302 will conflict with the expansion bucket 203, causing the expansion bucket 203 to rotate toward the fence 202. The expansion bucket 203 can be rotated to a horizontal state to prevent the photovoltaic panel from detaching. In addition, the strap 302 can also protect the side of the photovoltaic panel away from the fence 202, further preventing the photovoltaic panel from falling.

[0036] Furthermore, the unfolding bucket 203 includes a base plate 203b rotatably connected to the main frame 201, and a bucket enclosure 203a installed on the base plate 203b; the strap 302 has a fixed end 302a fixedly connected to the partition 202, and a connecting end 302b connected to the moving body 301, and the connection position of the fixed end 302a and the partition 202 is located below the base plate 203b, wherein the bucket enclosure 203a is preferably a U-shaped structure, and the range in which the base plate 203b can rotate is preferably 20 degrees, that is, when the base plate 203b rotates toward the partition 202, it can rotate to a horizontal state at most, and when the base plate 203b rotates away from the partition 202, it can rotate at most 20 degrees. Regarding the rotation angle control of the base plate 203b, a blocking structure can be set on the main frame 201.

[0037] In addition, the entire area of ​​the strap 302 between the fixed end 302a and the connecting end 302b passes around the side of the expansion bucket 203 away from the fence 202, so that when the strap 302 is tightened, it can push the expansion bucket 203 to rotate.

[0038] Example 2, reference Figures 2 to 6 This embodiment is different from the first embodiment in that: if the photovoltaic panel is not limited on the inner side of the unfolded bucket 203, the shaking during the lifting process can easily cause the photovoltaic panel to hit the frame 200, causing damage to the photovoltaic panel. Therefore, the present device also includes an approach mechanism 400, a through groove 203c is opened on the bottom plate 203b, and the bottom plate 203b is equipped with an approach mechanism 400 at the through groove 203c, and the bucket panel 203a is connected to the bottom plate 203b through the approach mechanism 400.

[0039] The approach mechanism 400 includes a guide column 401, which is fixed inside the through groove 203c; a resistance body 402, which is slidably sleeved on the outside of the guide column 401, and the strap 302 is in abutment with the resistance body 402; a movable plate 403, which is installed on the resistance body 402, and the bucket plate 203a is installed on the movable plate 403; when the movable body 301 pulls the strap 302, it can push the resistance body 402, thereby pushing the movable plate 403 to move toward the fence 202, thereby driving the expansion bucket 203 to move toward the fence 202, until one side of the photovoltaic panel is in contact with the expansion bucket 203, and the other end is in contact with the fence 202, thereby limiting the moving space of the photovoltaic panel and avoiding the problem of the photovoltaic panel colliding with the fence 200.

[0040] Specifically, an elastic member 404 is installed on the guide column 401, and the elastic member 404 is against the resistance body 402. When the resistance body 402 moves toward the fence 202, it resists the elastic member 404. The elastic member 404 has three functions. The first is that when the strap 302 pushes the resistance body 402, the elastic member 404 can apply a partial rebound force to the resistance body 402, thereby reducing the pressure applied to the internal photovoltaic panel when the resistance body 402 drives the expansion bucket 203 to move. The second is to limit the range of movement of the resistance body 402 to prevent the resistance body 402 from driving the expansion bucket 203. The moving range of the expansion bucket 203 is too large, causing the expansion bucket 203 to be too close to the partition 202, resulting in the photovoltaic panels between the two being squeezed. Finally, when the strap 302 no longer applies pressure to the resistance body 402, the elastic member 404 pushes the resistance body 402 to drive the expansion bucket 203 to reset, and the expansion bucket 203 slides away from the partition 202. Gravity acts on the end of the bottom plate 203b away from the partition 202. At this time, the bottom plate 203b and the expansion bucket 203 can rotate away from the partition 202 under the action of gravity and automatically expand.

[0041] Furthermore, the abutment body 402 includes a sleeve portion 402a sleeved on the outer side of the guide post 401 , a first extension end 402b parallel to the movable plate 403 , and a second extension end 402c forming an angle with the first extension end 402b .

[0042] The sleeve portion 402a is sleeved on the outer side of the guide column 401 and can move along the guide column 401. The purpose of setting the first extension end 402b is to allow the first extension end 402b to push the resistance body 402 to move when the strap 302 is tightened, and then push the expansion bucket 203 to move. The purpose of setting the second extension end 402c is to push the resistance body 402 in the early stage of tightening the strap 302, and then push the entire bottom plate 203b to rotate toward the partition 202.

[0043] Because when the bottom plate 203b is in an inclined state, the gravity of the entire expansion bucket 203 and the force of the elastic member 404 will limit the range of movement of the strap 302 by pressing the first extension end 402b in the initial stage of tightening, and the strap 302 will push the bottom plate 203b and the expansion bucket 203 to rotate toward the fence 202 through the second extension end 402c in the initial stage of tightening. When the bottom plate 203b rotates close to a horizontal state, the gravity restriction of the expansion bucket 203 received by the first extension end 402b gradually decreases, and the tightened strap 302 can push the expansion bucket 203 to move toward the fence 202 through the first extension end 402b.

[0044] This arrangement allows the photovoltaic panels inside the expansion bucket 203 to maintain a certain distance from the barrier 202 as the expansion bucket 203 rotates, allowing the expansion bucket 203 and the photovoltaic panels inside it to smoothly reach a horizontal state and then move closer to the barrier 202.

[0045] Furthermore, the first extension end 402b is provided with a first through slot 402d, and the second extension end 402c is provided with a second through slot 402e, and the strap 302 passes through the first through slot 402d and the second through slot 402e. The purpose of the strap 302 passing through the first through slot 402d and the second through slot 402e is to allow the strap 302 to maintain the corresponding position with the first extension end 402b and the second extension end 402c after being relaxed, so as to prevent the strap 302 from detaching from the first extension end 402b and the second extension end 402c.

[0046] Furthermore, the barrier 202 has a contact strip 202a protruding toward the side; the movable plate 403 is provided with protruding areas 401a at both ends, and the protruding areas 401a can be used to support the photovoltaic panel.

[0047] The side wall of the contact strip 202a close to the expansion bucket 203 can be wrapped with a flexible material, including but not limited to cotton products, sponge products, and rubber products. Of course, the inner wall of the expansion bucket 203 close to the contact strip 202a can also be wrapped with the same flexible material. The raised area 401a can form support at both ends of the bottom surface of the photovoltaic panel to avoid a gap between the expansion bucket 203 and the partition 202.

[0048] The rest of the structure is the same as that of Example 1.

[0049] Example 3, reference Figures 6 to 8 This embodiment differs from the above embodiment in that, in order to avoid the problem of the expansion bucket 203 suddenly expanding due to the breakage of the strap 302 during the lifting process, it also includes a rotating mechanism 500 and a locking mechanism 600. The bottom plate 203b is connected to the main frame 201 through the rotating mechanism 500; the rotating mechanism 500 includes a fixed shaft 501 installed on the main frame 201, and a rotating sleeve 502 installed on the bottom plate 203b and sleeved on the outside of the fixed shaft 501; the locking mechanism 600 includes a bracket 601 installed on the main frame 201, and a lifting positioning member 602 slidably mounted on the bracket 601; when the lifting positioning member 602 is interfered with, the rotating sleeve 502 can rotate normally; when the lifting positioning member 602 is not interfered with, the lifting positioning member 602 can lock the rotating sleeve 502.

[0050] Among them, when the entire fence 200 is placed on the ground, the bottom of the lifting and positioning member 602 will be in contact with the ground. At this time, the rotating sleeve 502 can rotate normally, and the natural bottom plate 203b can rotate normally. As the power member 102 starts to work, the cable 103 mechanism pulls the moving body 301 to lift the fence 200. At this time, the bottom of the lifting and positioning member 602 is no longer in contact, and the lifting and positioning member 602 forms a positioning for the rotating sleeve 502. At this time, even if the strap 302 breaks, because the lifting and positioning member 602 is not in contact, the rotating sleeve 502 and the bottom plate 203b cannot rotate, and the problem of the photovoltaic panel falling due to the expansion bucket 203 expansion will not occur.

[0051] Specifically, a groove 503 is formed on the rotating sleeve rod 502; the lifting positioning member 602 includes a column 602a slidably mounted on the bracket 601, and a locking tongue 602b provided at the end of the column 602a and extending into the groove 503.

[0052] The groove 503 includes an arc-shaped area 503 a and a positioning area 503 b ; the arc-shaped area 503 a is coaxial with the fixed shaft 501 ; and an extension line of the positioning area 503 b passes through the axis of the fixed shaft 501 .

[0053] The bracket 601 is fixed on the main frame 201, and the column 602a passes through the bracket 601. When the fence 200 is placed on the ground, the bottom of the column 602a contacts the ground. At this time, the locking tongue 602b is located in the arc area 503a of the groove 503, and the entire rotating sleeve rod 502 can rotate. After the photovoltaic panel is placed, the strap 302 is tightened, and the bottom plate 203b and the rotating sleeve rod 502 are rotated toward the fence 202. At this time, the locking tongue 602b reaches the intersection of the arc area 503a and the positioning area 503b of the rotating sleeve rod 502. The moving body 301 lifts the entire fence 200 through the cable 103. At this time, the fence 200 leaves the ground, and the bottom of the column 602a is separated from the ground and is no longer in conflict. At this time, the column 602a moves downward relative to the rotating sleeve rod 502 under the action of gravity, and the locking tongue 602b enters the positioning area 503b, completing the positioning of the entire rotating sleeve rod 502.

[0054] Of course, in this embodiment, the range in which the expansion bucket 203 can rotate can be limited by controlling the curvature of the arc-shaped area 503a. For example, when the bottom plate 203b is rotated to a horizontal state, the locking tongue 602b reaches the junction of the arc-shaped area 503a and the positioning area 503b and cannot continue to rotate. When the bottom plate 203b is rotated 20 degrees away from the fence 202, the locking tongue 602b reaches the end of the arc-shaped area 503a away from the positioning area 503b, and the bottom plate 203b cannot continue to rotate. Therefore, unlike the other embodiments, in this embodiment, there is no need to set up an additional structure to limit the rotation range of the bottom plate 203b.

[0055] The rest of the structure is the same as that of Example 2.

[0056] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape, and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, changes in orientation, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number, or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structures. Other replacements, improvements, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0057] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (i.e., those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0058] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0059] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A rooftop photovoltaic lifting device, characterized by: include, A lifting mechanism (100) comprises a frame (101), a power member (102) disposed on the frame (101), and a cable (103) connected to the power member (102); The fence (200) comprises a main frame (201), a fence (202) mounted on the main frame (201), and an expansion bucket (203) rotatably mounted on the main frame (201); and, A stabilizing mechanism (300) includes a moving body (301) and a strap (302) connected between the moving body (301) and the main frame (201); A through slot (203c) is provided on the bottom plate (203b) of the expansion bucket (203); a close mechanism (400) is installed on the bottom plate (203b) at the through slot (203c); the bucket enclosure (203a) of the expansion bucket (203) is connected to the bottom plate (203b) via the close mechanism (400); the close mechanism (400) comprises: A guide post (401) fixed inside the through slot (203c); A resisting body (402) is slidably sleeved on the outer side of the guide column (401), and the binding belt (302) resists the resisting body (402); A movable plate (403) is mounted on the abutment body (402), and the bucket plate (203a) is mounted on the movable plate (403); When the movable body (301) pulls the binding belt (302), it can push the resisting body (402) of the unfolding bucket (203), thereby pushing the movable plate (403) to move in the direction of the fence (202); The pulling rope (103) is connected to the moving body (301), and the binding belt (302) is in conflict with the unfolding bucket (203). When the moving body (301) pulls the binding belt (302), the binding belt (302) can push the unfolding bucket (203) to rotate in the direction of the fence (202).

2. The rooftop photovoltaic lifting device according to claim 1, characterized in that: The unfolding bucket (203) comprises a bottom plate (203b) rotatably connected to the main frame (201), and a bucket enclosure plate (203a) mounted on the bottom plate (203b); The binding belt (302) has a fixed end (302a) fixedly connected to the barrier (202), and a connecting end (302b) connected to the moving body (301), and the connection position between the fixed end (302a) and the barrier (202) is located below the bottom plate (203b).

3. The rooftop photovoltaic lifting device according to claim 2, characterized in that: An elastic member (404) is mounted on the guide column (401), and the elastic member (404) abuts against the abutting body (402). When the abutting body (402) moves toward the barrier (202), it abuts against the elastic member (404).

4. The rooftop photovoltaic lifting device according to claim 3, characterized in that: The abutment body (402) comprises a sleeve portion (402a) sleeved on the outside of the guide column (401), a first extension end (402b) parallel to the movable plate (403), and a second extension end (402c) having an included angle with the first extension end (402b).

5. The rooftop photovoltaic lifting device according to claim 4, characterized in that: The first extension end (402b) is provided with a first through slot (402d), the second extension end (402c) is provided with a second through slot (402e), and the binding strap (302) passes through the first through slot (402d) and the second through slot (402e).

6. The rooftop photovoltaic lifting device according to claim 5, characterized in that: The barrier (202) has a contact strip (202a) protruding toward the side; The movable plate (403) is provided with raised areas (401a) at both ends, and the raised areas (401a) can be used to support photovoltaic panels.

7. The rooftop photovoltaic lifting device according to claim 3, 4 or 5, characterized in that: It also includes a rotating mechanism (500) and a locking mechanism (600), and the bottom plate (203b) is connected to the main frame (201) via the rotating mechanism (500); The rotating mechanism (500) comprises a fixed shaft (501) mounted on the main frame (201), and a rotating sleeve rod (502) mounted on the bottom plate (203b) and sleeved on the outside of the fixed shaft (501); The locking mechanism (600) comprises a bracket (601) mounted on the main frame (201), and a lifting positioning member (602) slidably mounted on the bracket (601); When the lifting positioning member (602) is in contact, the rotating sleeve rod (502) can rotate normally; when the lifting positioning member (602) is not in contact, the lifting positioning member (602) can lock the rotating sleeve rod (502).

8. The rooftop photovoltaic lifting device according to claim 7, characterized in that: The rotating sleeve rod (502) is provided with a groove (503); The lifting positioning member (602) comprises a column (602a) slidably mounted on the bracket (601), and a locking tongue (602b) provided at the end of the column (602a) and extending into the interior of the groove (503).

9. The rooftop photovoltaic lifting device according to claim 8, characterized in that: The groove (503) comprises an arc-shaped area (503a) and a positioning area (503b); The arc-shaped area (503a) is coaxial with the fixed axis (501); and the extension line of the positioning area (503b) passes through the axis of the fixed axis (501).

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