CN220711389U - Bridge structure and flat single-shaft photovoltaic power station - Google Patents

Abstract

The utility model discloses a bridge structure and a photovoltaic power station, which comprise a first movable beam, a second movable beam and a rigid bridge, wherein a first swing connecting part is arranged at a first end of the first movable beam; the first end of the second movable beam is provided with a second swing connecting part; the two ends of the rigid bridge are respectively connected with the second end of the first movable beam and the second end of the second movable beam through movable connecting parts. The bridge structure can self-adaptively finish certain degree of freedom adjustment, and the rigid bridge does not need to stretch and deform, so that the limiting condition of the intermediate gap between two groups of photovoltaic modules required to be configured by the bridge structure is reduced, and the gap requirement between the two groups of photovoltaic modules can be better adapted; in addition, when the angle difference occurs between the two groups of photovoltaic modules, the first movable beam which swings or the second movable beam which swings can play a role in blocking the cleaning robot, so that the robot can not fall off due to falling off of the bridge, and the fault rate is reduced.

Description

Bridge structure and flat single-shaft photovoltaic power station

Technical Field

The utility model relates to the technical field of photovoltaics, in particular to a bridge structure and a flat single-shaft photovoltaic power station.

Background

In a structure requiring cleaning of a surface, such as a photovoltaic power station, a gap is generally provided between photovoltaic strings. In order to reduce the number investment of cleaning robots and save the cost, a method of connecting a group string by a steel bridge is generally adopted to create a passing condition for the robots, so that the task that one cleaning robot can clean one row of photovoltaic modules is realized.

Generally, when two groups of adjacent groups of photovoltaic modules are connected in series, the two groups of photovoltaic modules are driven by two independent motors to rotate, so that the situation that an angle difference occurs between the two groups of photovoltaic modules is quite common, if a single-side driving motor is damaged, the maximum angle difference can reach 60 degrees, and therefore the two groups of photovoltaic modules are connected through a flexible bridge, and the flexible bridge can be understood as a telescopic bridge, namely, a certain telescopic amount exists when different angles are different. The existing bridge structure needs a large enough gap between the bridges at two sides to carry out telescopic adjustment (a certain telescopic space is needed). But the more the telescopic structure, the higher the failure rate is brought.

In summary, how to provide a bridge structure capable of adapting to the gap requirement between two groups of photovoltaic modules has been a technical problem to be solved by those skilled in the art.

Disclosure of Invention

In view of the above, the present utility model provides a bridge structure and a flat single-axis photovoltaic power station, so as to be able to adapt to the gap requirement between two groups of photovoltaic modules.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a bridge structure comprising:

a first movable beam, the first end of which is provided with a first swing connecting part;

a second movable beam, the first end of which is provided with a second swing connecting part;

and two ends of the rigid bridge are respectively connected with the second end of the first movable beam and the second end of the second movable beam through movable connecting parts.

Optionally, the movable connection component comprises a first connection end and a second connection end which are mutually butted, and the first connection end and the second connection end are rotationally connected around a butting axis; the first connecting end is provided with a first hinge shaft, the second connecting end is provided with a second hinge shaft, and the first hinge shaft and the second hinge shaft are mutually perpendicular and are perpendicular to the butt joint axis.

Optionally, at least one of the two ends of the rigid bridge is connected with the movable connecting component on the corresponding side thereof through a first length compensation connecting structure;

and/or at least one of the second end of the first movable beam and the second end of the second movable beam is connected with the movable connecting component on the corresponding side through a second length compensation connecting structure.

Optionally, the first length compensation connection structure includes a first chute and a first sliding portion slidingly engaged with the first chute, one of the first chute and the first sliding portion is disposed on the movable connection member, the other is disposed on the rigid bridge, and the first sliding portion is slidingly capable of adjusting an effective connection length of the movable connection member and the rigid bridge along the first chute.

Optionally, the second length compensation connection structure includes a second chute and a second sliding portion slidingly engaged with the second chute, one of the second chute and the second sliding portion is disposed on the movable connection member, the other is disposed on the second end of the corresponding movable beam, and the second sliding portion is slidingly capable of adjusting an effective connection length of the movable connection member relative to the second end of the corresponding movable beam along the second chute.

Optionally, the photovoltaic module further comprises a first bridge mounting seat and a second bridge mounting seat which are respectively mounted at opposite ends of two adjacent groups of photovoltaic modules, the first swing connecting component is mounted on the first bridge mounting seat, and the second swing connecting component is mounted on the second bridge mounting seat.

Optionally, the first swing connecting component and the second swing connecting component are respectively arranged near the swing axle centers of the photovoltaic modules on the sides of the first swing connecting component and the second swing connecting component.

Optionally, the first bridge frame mounting seat is provided with two first swing connecting parts for connecting the two first movable beams; and the second bridge frame mounting seat is provided with two second swing connecting parts for connecting the two second movable beams.

Optionally, the first swing connection component is a first swing shaft, and the first swing shaft is perpendicular to the first bridge mounting seat and parallel to the photovoltaic component on the side where the first bridge mounting seat is located;

and/or the second swinging connecting component is a second swinging shaft, and the second swinging shaft is perpendicular to the second bridge mounting seat and parallel to the photovoltaic component on the side where the second bridge mounting seat is located.

Optionally, the first bridge mounting seat is further provided with a first guiding component, and when the first movable beam swings from a preset swing position to a position parallel to the photovoltaic module on the side where the first movable beam is located, the first guiding component is used for guiding the first movable beam to swing to be parallel to the photovoltaic module on the side where the first movable beam is located;

and/or, a second guiding component is further arranged on the second bridge frame mounting seat, and when the second movable beam swings from a preset swing position to a position flush with the photovoltaic module on the side where the second movable beam is located, the second guiding component is used for guiding the second movable beam to swing to be flush with the photovoltaic module on the side where the second movable beam is located.

Optionally, when the first bridge mounting seat is provided with a first guide component, the first guide component is a first guide groove, and when the first movable beam swings to a position parallel to the photovoltaic module on the side where the first movable beam is located, the bottom surface of the first guide groove is attached to the lower beam surface of the first movable beam;

when the second bridge frame mounting seat is provided with a second guide part, the second guide part is a second guide groove, and when the second movable beam swings to the position parallel to the photovoltaic module on the side where the second movable beam is located, the bottom surface of the second guide groove is attached to the lower beam surface of the second movable beam.

Compared with the background art, the bridge structure comprises a first movable beam, a second movable beam and a rigid bridge, wherein a first swing connecting part is arranged at a first end of the first movable beam; the first end of the second movable beam is provided with a second swing connecting part; the two ends of the rigid bridge are respectively connected with the second end of the first movable beam and the second end of the second movable beam through movable connecting parts. According to the bridge structure, in the practical application process, the first swing connecting component and the second swing connecting component are respectively arranged on opposite sides of two adjacent groups of photovoltaic modules, so that the first end of the first movable beam can swing relative to the photovoltaic module on the side where the first movable beam is located under the action of the first swing connecting component, the first end of the second movable beam can swing relative to the photovoltaic module on the side where the second movable beam is located under the action of the second swing connecting component, and the second end of the first movable beam and the second end of the second movable beam are respectively connected to two ends of the rigid bridge, therefore, when a cleaning robot needs to walk from one group of photovoltaic modules to the other group of photovoltaic modules through the bridge structure, the first movable beam is adjusted to the position flush with the photovoltaic module on the side where the first movable beam is located, and the second movable beam is adjusted to the position flush with the photovoltaic module on the side where the first movable beam is located; when a certain angle difference occurs between the two groups of photovoltaic modules, the first movable beam swings relative to the photovoltaic module on the side where the first movable beam is located, or the second movable beam swings relative to the photovoltaic module on the side where the second movable beam is located, namely, the bridge structure can self-adaptively complete certain degree of freedom adjustment, the rigid bridge does not need to stretch and deform, compared with the traditional telescopic rod structure, the limiting condition of the middle gap between the two groups of photovoltaic modules required to be configured by the bridge structure is reduced, and the gap requirement between the two groups of photovoltaic modules can be better adapted; in addition, when the angle difference occurs between the two groups of photovoltaic modules, the first movable beam which swings or the second movable beam which swings can play a role in blocking the cleaning robot, so that the robot can not fall off due to falling off of the bridge, and the fault rate is reduced.

In addition, the utility model also provides a flat single-shaft photovoltaic power station, which comprises photovoltaic modules and bridge structures connected between two adjacent groups of photovoltaic modules, wherein the bridge structures are any one of the bridge structures described in the scheme. Because the bridge structure has the technical effects, the flat single-shaft photovoltaic power station with the bridge structure should have corresponding technical effects, and the description is omitted here.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a bridge structure when the angle difference between two groups of photovoltaic modules provided by the embodiment of the utility model is zero;

fig. 2 is a schematic view of a degree of freedom adjusting structure of a bridge structure when an angle difference between two groups of photovoltaic modules is smaller according to an embodiment of the present utility model;

FIG. 3 is a schematic structural diagram of a first gimbal assembly slidably coupled to a rigid bridge according to an embodiment of the present utility model;

fig. 4 is an axial schematic view of a degree-of-freedom adjusting structure of a bridge structure when an angle difference between two groups of photovoltaic modules is equal, which is provided by the embodiment of the utility model;

fig. 5 is a schematic side view of a degree of freedom adjusting structure of a bridge structure when an angle difference between two groups of photovoltaic modules is equal according to an embodiment of the present utility model;

fig. 6 is an axial schematic view of a degree-of-freedom adjusting structure of a bridge structure when an angle difference between two groups of photovoltaic modules is large according to an embodiment of the present utility model;

fig. 7 is a schematic side view of a degree-of-freedom adjusting structure of a bridge structure when an angle difference between two groups of photovoltaic modules is large according to an embodiment of the present utility model.

Wherein, in fig. 1-7:

the first bridge mounting seat 11, the first movable beam 11a, the first guide member 110, the second bridge mounting seat 12, the second movable beam 12a and the second guide member 120;

a rigid bridge 2;

the movable connecting component 3, the first connecting end 31 and the second connecting end 32;

a photovoltaic module 4.

Detailed Description

The utility model aims at providing a bridge structure and a flat single-shaft photovoltaic power station so as to be capable of adapting to the gap requirement between two groups of photovoltaic modules.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 7, the present utility model specifically provides a bridge structure, which includes a first movable beam 11a, a second movable beam 12a, and a rigid bridge 2, wherein a first end of the first movable beam 11a is provided with a first swing connection member; the first end of the second movable beam 12a is provided with a second swing connecting member; the two ends of the rigid bridge 2 are respectively connected to the second end of the first movable beam 11a and the second end of the second movable beam 12a through the movable connecting component 3.

In the bridge structure, in the practical application process, the first swing connecting component and the second swing connecting component are respectively arranged on opposite sides of two adjacent groups of photovoltaic modules 4, so that the first end of the first movable beam 11a can swing relative to the photovoltaic module 4 on the side where the first movable beam 11a is positioned under the action of the first swing connecting component, the first end of the second movable beam 12a can swing relative to the photovoltaic module 4 on the side where the second movable beam 12a is positioned under the action of the second swing connecting component, and the second end of the first movable beam 11a and the second end of the second movable beam 12a are respectively connected with two ends of the rigid bridge 2, when a cleaning robot needs to walk from one group of photovoltaic modules to the other group of photovoltaic modules through the bridge structure, the first movable beam 11a is adjusted to be flush with the photovoltaic module 4 on the side where the first movable beam is positioned, and the second movable beam 12a is adjusted to be flush with the photovoltaic module 4 on the side where the second movable beam is positioned; when a certain angle difference occurs between the two groups of photovoltaic modules 4, the first movable beam 11a swings relative to the photovoltaic module 4 on the side where the first movable beam is located, or the second movable beam 12a swings relative to the photovoltaic module 4 on the side where the second movable beam is located, namely, the bridge structure can self-adaptively complete certain degree of freedom adjustment, and the rigid bridge does not need to stretch and deform, compared with the traditional telescopic rod structure, the limiting condition of the middle gap between the two groups of photovoltaic modules 4 required to be configured by the bridge structure is reduced, and the gap requirement between the two groups of photovoltaic modules 4 can be better adapted; in addition, when the two groups of photovoltaic modules 4 have angle differences, the first movable beam 11a which swings or the second movable beam 12a which swings can play a role in blocking the cleaning robot, so that the robot can not fall off due to falling off of the bridge, and the failure rate is reduced.

In some specific embodiments, referring to fig. 3, the movable connecting component 3 may be a connecting component that swings at multiple angles, and the specific structure of the movable connecting component may include a first connecting end 31 and a second connecting end 32 that are butted with each other, where the first connecting end 31 and the second connecting end 32 are rotatably connected around a butting axis; wherein, be provided with first articulated shaft on the first link 31, be provided with the second articulated shaft on the second link 32, first articulated shaft and second articulated shaft mutually perpendicular arrange, and all perpendicular with the butt joint axial lead. Through designing the movable connecting part 3 into the structure form, the connecting function of the movable connecting part 3 has the function of multi-angle free swing, and the movable connecting part is simple in structure, convenient to process and manufacture and low in cost. It should be understood, of course, that the above structural forms are merely examples of specific structures of the movable connecting component 3 according to the embodiments of the present utility model, and other structural forms, such as a universal joint, a spherical hinge connection, etc., may be designed in the practical application process, which are not limited in any way.

In some more specific embodiments, at least one of the two ends of the rigid bridge beam 2 and the movable connecting component 3 on the corresponding side thereof can be connected by a first length compensation connecting structure; and/or at least one of the second end of the first movable beam 11a and the second end of the second movable beam 12a is connected with the movable connecting member 3 on the corresponding side thereof by a second length compensating connecting structure. Through designing into this kind of structural style, when the angle difference of inclination between two sets of adjacent photovoltaic module 4 is less, referring to the fig. 2 and 3 shows, the crane span structure can compensate the adaptation length of rigid bridge 2 through first length compensation connection structure and/or second length compensation connection structure, and the degree of freedom adjustment under two sets of adjacent photovoltaic module 4 small angle rotations is realized through first/second length compensation connection structure promptly, and cleaning robot can pass through on the crane span structure this moment.

It should be noted that the first/second length compensation connection structure means that the two connection members are guaranteed to be in a connection state, that is, a certain amount of relative displacement can occur between the two connection members without being separated.

Referring to fig. 2 and 3, the first length compensation connection structure may specifically include a first chute and a first sliding portion slidingly engaged with the first chute, one of the first chute and the first sliding portion is disposed on the movable connecting member 3, the other is disposed on the rigid bridge 2, and the effective connection length between the movable connecting member 3 and the rigid bridge 2 can be adjusted by sliding the first sliding portion along the first chute. Wherein, the movable connecting part 3 is provided with a first chute arranged along the extending direction of the movable connecting part, and the corresponding end of the rigid bridge 2 is provided with a first sliding part in sliding fit with the first chute; it is also possible that the corresponding end of the rigid bridge 2 is provided with a first runner arranged along its extension direction, and the movable connecting part 3 is provided with a first sliding part in sliding fit with the first runner.

Similarly, the second length compensation connection structure may specifically include a second chute and a second sliding portion slidably matched with the second chute, where one of the second chute and the second sliding portion is disposed on the movable connection member 3, the other is disposed on the second end of the corresponding movable beam, and the second sliding portion slides along the second chute to adjust an effective connection length of the movable connection member 3 relative to the second end of the corresponding movable beam. Wherein, the movable connecting component 3 is provided with a second sliding groove arranged along the extending direction of the movable connecting component, and the first movable beam 11a is provided with a second sliding part which is in sliding fit with the second sliding groove; the first movable beam 11a may be provided with a second slide groove disposed toward the movable connecting member 3 to which the first movable beam is connected, and the movable connecting member 3 may be provided with a second slide portion slidably engaged with the second slide groove.

By designing the first/second length compensation connecting structure into the mode that the sliding groove is matched with the sliding part, the structure is simpler, and the processing and the assembly are convenient. It should be understood, of course, that the above structural forms are merely preferred examples of the embodiments of the present utility model, and other sliding connection structural forms may be designed in the practical application process, which are not limited in detail herein.

The effective connection length refers to the distance between two ends of the integral structure formed by connecting the two members.

In some specific embodiments, referring to fig. 1 and 3, in conjunction with fig. 5-7, the above-mentioned bridge structure may specifically further include a first bridge mount 11 and a second bridge mount 12 respectively mounted at opposite ends of two adjacent groups of photovoltaic modules, wherein the first swing connection member is mounted on the first bridge mount 11, and the second swing connection member is mounted on the second bridge mount 12. Through the design of the first bridge frame installation seat 11 and the second bridge frame installation seat 12, the first swing connecting component on the first movable beam 11a and the second swing connecting component on the second movable beam 12a are more convenient to install. The first bridge mounting seat 11 and the second bridge mounting seat 12 can be specifically and respectively mounted on the swinging shafts of the photovoltaic modules 4 at the respective corresponding sides, or directly mounted on the frames of the photovoltaic modules 4 at the respective corresponding sides, and can be selectively arranged according to actual requirements in the practical application process.

In a further embodiment, as shown with reference to fig. 4-7, the first and second swing connection members are preferably designed to be disposed close to the swing axes of the photovoltaic modules 4 on the respective sides, respectively. Through designing into this kind of structural style for the angle scope that bridge structure can self-adaptation adjustment is bigger, can adapt to the angle difference of two adjacent groups of photovoltaic module 4 better. For example, referring to fig. 4 and 5, the bridge structure can adapt to the swing angle difference of two adjacent groups of photovoltaic modules 4 to be a medium angle deviation a1 (for example, ±30°); referring to fig. 6 and 7, the bridge structure may also adapt to the swing angle difference between two adjacent groups of photovoltaic modules 4 to be a larger angle deviation a2 (for example, ±60° to ±65°).

In some specific embodiments, the first bridge mount 11 preferably has two first swing connection members mounted thereon to connect the two first movable beams 11a; two second swing connecting members are mounted on the second bridge mount 12 to connect the two second movable beams 12a. Through designing into this kind of structural style for the crane span structure is more reliable and stable, all has the function of anti-drop to the robot of sweeping floor on two sets of photovoltaic module 4 that the crane span structure is connected.

In other specific embodiments, the first swing connection component may be specifically a first swing shaft, where the first swing shaft is perpendicular to the first bridge mount 11 and parallel to the photovoltaic module 4 on the side of the first bridge mount 11. Through designing the first swing connecting part into the mode, the first movable beam 11a can move along the plane vertical to the photovoltaic module 4 where the first bridge frame mounting seat 11 is located, and the first movable beam 11a can be more conveniently reset by the structural form.

Similarly, the second swing connection component may specifically be a second swing shaft, where the second swing shaft is perpendicular to the second bridge mount 12 and parallel to the photovoltaic module 4 on the side of the second bridge mount 12. By designing the second swing shaft in the manner described above, the second movable beam 12a can move along the plane perpendicular to the photovoltaic module 4 where the second bridge mount 12 is located, and this structural form is more convenient for homing the second movable beam 12a.

It should be noted that, the first/second swing connection member may be a swing shaft, or may be another swing connection mechanism commonly used by those skilled in the art, such as a flexible connection, a hinge connection, etc., which is not limited herein.

In some specific embodiments, referring to fig. 4, the first bridge mount 11 is further provided with a first guiding component 110, where the first guiding component 110 is used to guide the first movable beam 11a to swing to be flush with the photovoltaic module 4 on the side where the first movable beam 11a is located when the first movable beam 11a swings from the preset swing position to the position flush with the photovoltaic module 4 on the side where the first movable beam is located. Through designing this first guide member 110 for when first movable beam 11a swings to the position of parallel and level with photovoltaic module 4 of its place side, can avoid appearing the condition emergence of card when swinging to the coaxial position with first crane span structure mount pad 11 because of there is the fit-up gap in first articulated shaft 5 to lead to first movable beam 11 a.

Similarly, the second bridge mount 12 is further provided with a second guiding member 120, where when the second movable beam 12a swings from the preset swing position to a position flush with the photovoltaic module 4 on the side where the second movable beam 12a is located, the second guiding member 120 is used to guide the second movable beam 12a to swing to be flush with the photovoltaic module 4 on the side where the second movable beam is located. By designing the second guide member 120, when the second movable beam 12a swings to a position flush with the photovoltaic module 4 on the side where the second movable beam 12a is located, the occurrence of a jam when the second movable beam 12a swings to a position coaxial with the second bridge mount 12 due to an assembly gap of the second hinge shaft can be avoided.

In a further embodiment, when the first bridge mounting seat 11 is provided with the first guide member 110, the first guide member 110 is a first guide groove, and when the first movable beam 11a swings to a position flush with the photovoltaic module 4 on the side thereof, the bottom surface of the first guide groove is attached to the lower beam surface of the first movable beam 11 a. By designing such a structural form, not only a certain guiding function can be achieved for the homing of the first movable beam 11a, but also a certain supporting effect can be achieved for the first movable beam 11a at a position coaxial with the first bridge mount 11.

Similarly, when the second bridge mounting seat 12 is provided with the second guide member 120, the second guide member 120 is a second guide groove, and when the second movable beam 12a swings to a position flush with the photovoltaic module 4 on the side where the second movable beam is located, the bottom surface of the second guide groove is attached to the lower beam surface of the second movable beam 12a. By designing such a structure, not only a certain guiding function can be achieved for the homing of the second movable beam 12a, but also a certain supporting effect can be achieved for the second movable beam 12a at a position coaxial with the second bridge mount 12.

In addition, the utility model also provides a photovoltaic power station, which comprises photovoltaic modules and bridge structures connected between two adjacent groups of photovoltaic modules, wherein the bridge structures are any one of the bridge structures described in the scheme. Because the bridge structure has the technical effects, the photovoltaic power station with the bridge structure should have corresponding technical effects, and the description is omitted here.

It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.

It should be appreciated that the terms "system," "apparatus," "unit," and/or "module," if used herein, are merely one method for distinguishing between different components, elements, parts, portions, or assemblies at different levels. However, if other words can achieve the same purpose, the word can be replaced by other expressions.

As used in this application and in the claims, the terms "a," "an," "the," and/or "the" are not specific to the singular, but may include the plural, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus. The inclusion of an element defined by the phrase "comprising one … …" does not exclude the presence of additional identical elements in a process, method, article, or apparatus that comprises an element.

Wherein, in the description of the embodiments of the present application, "/" means or is meant unless otherwise indicated, for example, a/B may represent a or B; "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, in the description of the embodiments of the present application, "plurality" means two or more than two.

The terms "first" and "second" are used below for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

If a flowchart is used in the present application, the flowchart is used to describe the operations performed by the system according to embodiments of the present application. It should be appreciated that the preceding or following operations are not necessarily performed in order precisely. Rather, the steps may be processed in reverse order or simultaneously. Also, other operations may be added to or removed from these processes.

The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the core concepts of the utility model. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (12)

1. A bridge structure, comprising:

a first movable beam (11 a) having a first end provided with a first swing connection member so that the first movable beam (11 a) can swing on the side thereof;

a second movable beam (12 a) having a first end provided with a second swing connection member so that the second movable beam (12 a) can swing on the side thereof;

and two ends of the rigid bridge (2) are respectively connected with the second end of the first movable beam (11 a) and the second end of the second movable beam (12 a) through movable connecting parts (3).

2. Bridge structure according to claim 1, characterized in that the movable connecting part (3) comprises a first connecting end (31) and a second connecting end (32) which are mutually butted, the first connecting end (31) and the second connecting end (32) being rotatably connected about a butted axis; the first connecting end (31) is provided with a first hinge shaft, the second connecting end (32) is provided with a second hinge shaft, and the first hinge shaft and the second hinge shaft are mutually perpendicular and are perpendicular to the butt joint axis.

3. Bridge structure according to claim 1, characterized in that at least one of the two ends of the rigid bridge (2) is connected to the mobile connecting element (3) on the corresponding side thereof by a first length-compensating connection structure;

and/or at least one of the second end of the first movable beam (11 a) and the second end of the second movable beam (12 a) is connected with the movable connecting component (3) on the corresponding side through a second length compensation connecting structure.

4. A bridge structure according to claim 3, characterized in that the first length-compensating connection structure comprises a first runner and a first sliding part slidingly engaged with the first runner, one of the first runner and the first sliding part being arranged on the movable connecting member (3), the other being arranged on the rigid bridge (2), and the sliding of the first sliding part along the first runner being able to adjust the effective connection length of the movable connecting member (3) and the rigid bridge (2).

5. A bridge structure according to claim 3, wherein the second length compensating connection structure comprises a second runner and a second sliding part slidingly engaged with the second runner, one of the second runner and the second sliding part being provided on the movable connecting member (3), the other being provided on the second end of the corresponding movable beam, and sliding of the second sliding part along the second runner being capable of adjusting the effective connection length of the movable connecting member (3) relative to the second end of its corresponding movable beam.

6. The bridge structure of any one of claims 1-5, further comprising a first bridge mount (11) and a second bridge mount (12) mounted to opposite ends of two adjacent sets of photovoltaic modules, respectively, the first swing connection member being mounted to the first bridge mount (11) and the second swing connection member being mounted to the second bridge mount (12).

7. The bridge structure of claim 6, wherein the first swing link and the second swing link are each disposed proximate a swing axis of the photovoltaic module on a respective side.

8. Bridge structure according to claim 6, characterized in that said first bridge mounting seat (11) is fitted with two said first swing connection members to connect two said first movable beams (11 a); two second swinging connecting parts are arranged on the second bridge frame mounting seat (12) so as to be connected with two second movable beams (12 a).

9. The bridge structure according to claim 6, characterized in that said first swing connection member is a first swing shaft perpendicular to said first bridge mount (11) and parallel to the photovoltaic module (4) on the side of said first bridge mount (11);

and/or the second swinging connecting component is a second swinging shaft, and the second swinging shaft is perpendicular to the second bridge mounting seat (12) and parallel to the photovoltaic module (4) on the side where the second bridge mounting seat (12) is located.

10. The bridge structure according to claim 6, wherein the first bridge mount (11) is further provided with a first guiding member (110), and the first guiding member (110) is configured to guide the first movable beam (11 a) to swing to be flush with the photovoltaic module (4) on the side where the first movable beam (11 a) is located when the first movable beam (11 a) swings from the preset swing position to the position flush with the photovoltaic module (4) on the side where the first movable beam is located;

and/or, a second guiding component (120) is further arranged on the second bridge frame mounting seat (12), and when the second movable beam (12 a) swings from a preset swing position to a position flush with the photovoltaic module (4) on the side where the second movable beam is located, the second guiding component (120) is used for guiding the second movable beam (12 a) to swing to be flush with the photovoltaic module (4) on the side where the second movable beam is located.

11. The bridge structure according to claim 10, characterized in that when the first bridge mount (11) is provided with a first guide member (110), the first guide member (110) is a first guide groove, and when the first movable beam (11 a) swings to a position flush with the photovoltaic module (4) on the side thereof, the groove bottom surface of the first guide groove is attached to the lower beam surface of the first movable beam (11 a);

when the second bridge mounting seat (12) is provided with a second guide part (120), the second guide part (120) is a second guide groove, and when the second movable beam (12 a) swings to a position flush with the photovoltaic module (4) at the side of the second movable beam, the bottom surface of the second guide groove is attached to the lower beam surface of the second movable beam (12 a).

12. A flat single-axis photovoltaic power station comprising photovoltaic modules and a bridge structure connected between two adjacent groups of photovoltaic modules, wherein the bridge structure is as claimed in any one of claims 1 to 11.