CN217918340U - Offshore sightseeing platform - Google Patents

Abstract

The utility model discloses a marine sightseeing platform belongs to platform technical field on water, has solved the relatively poor technical problem of large-scale movable sightseeing platform stability in aqueous. The sightseeing platform comprises a floating box, a platform and a plurality of stand columns, wherein the floating box is in a hollow regular prism shape; the platform is arranged above the buoyancy tank; a plurality of stands set up along the circumference interval of flotation tank, the both ends of stand respectively with flotation tank and main part fixed connection. The application is not easy to incline and has high stability.

Description

Offshore sightseeing platform

Technical Field

The utility model belongs to the technical field of the platform on water, especially, relate to a marine sightseeing platform.

Background

The large-scale sightseeing platform of marine leisure amusement needs to be built to arrange other facilities that are used for amusement, rest on the sightseeing platform, the size of the movable sightseeing platform of current operation crescent, the flotation tank structure that provides buoyancy also crescent, leads to sightseeing platform's stability not good.

SUMMERY OF THE UTILITY MODEL

The application aims at solving the technical problem that the stability of the large movable sightseeing platform in water is poor at least to a certain extent, and therefore the application provides the offshore sightseeing platform.

The technical scheme of the application is as follows:

an offshore sightseeing platform comprising:

the buoyancy tank is in a hollow regular prism shape;

the platform is arranged above the buoyancy tank;

the stand, it is a plurality of the stand is followed the circumference interval of flotation tank sets up, the both ends of stand respectively with the flotation tank with platform fixed connection.

In some embodiments, the buoyancy tank comprises a plurality of sequentially connected buoyancy rods, the number of the upright columns is the same as that of the buoyancy rods, and the upright columns are arranged at the joints of the adjacent buoyancy rods.

In some embodiments, the buoyancy tank comprises five buoyancy rods.

In some embodiments, the sightseeing platform further comprises a plurality of spud legs, each spud leg penetrates through the platform, the upright post and the buoyancy tank in sequence, each spud leg is connected with a driving mechanism, the driving mechanism is arranged in the platform, and the driving mechanism can drive the spud legs to move back and forth along the length direction of the spud legs.

In some embodiments, the outer wall of the pile leg is provided with a plurality of pin holes along the length direction thereof, the driving mechanism is a hydraulic pin type lifting system, an upper ring beam of the hydraulic pin type lifting system is fixedly connected with the platform, and a lower ring beam of the hydraulic pin type lifting system is movably connected with the pile leg.

In some embodiments, the platform comprises a main body, a truss structure, and a deck, the main body having a regular prism shape, the number of lateral edges of the main body being equal to the number of lateral edges of the pontoon;

the truss structure is fixedly arranged in the circumferential direction of the main body;

the deck is disposed on top of the main body and the truss structure.

In some embodiments, the truss structure comprises a plurality of outer edge trusses, a plurality of radial trusses, and a plurality of connecting trusses;

the outer edge trusses are arranged around the circumference of the main body, the number of the outer edge trusses is the same as that of the lateral edges of the main body, the outer edge truss structure comprises a first outer edge truss and a second outer edge truss, the first outer edge truss and the second outer edge truss are symmetrically arranged along the radial direction of the main body, and the distance between the first outer edge truss and the second outer edge truss decreases progressively along the direction far away from the main body;

the radial truss is connected with the main body and the outer edge truss;

the connecting truss is arranged between the radial truss and/or the outer edge truss.

In some embodiments, a plurality of the radial girders are arranged at equal angular intervals around a center line of the main body, and a length direction of the radial girders is located in a radial direction of the main body.

In some embodiments, the truss structure further comprises a plurality of parallel trusses, the parallel trusses are arranged between two adjacent radial trusses, the parallel trusses connect the outer edge truss and the main body, and the extension lines of the parallel trusses along the length direction of the parallel trusses are not connected with the central line of the main body.

In some embodiments, the connecting trusses comprise a plurality of first connecting trusses, a plurality of second connecting trusses, and a plurality of third connecting trusses;

two ends of the first connecting truss are fixedly connected with the first outer edge truss and the second outer edge truss respectively;

two ends of the second connecting truss are respectively and fixedly connected with the adjacent radial truss and the parallel truss;

and two ends of the third connecting truss are respectively and fixedly connected with the adjacent outer edge truss and the radial truss.

The embodiment of the application has at least the following beneficial effects:

according to the technical scheme, when the sightseeing platform is required to be in contact with the seabed or fixed through the hollow regular-prism-shaped floating box, sand grains on the seabed move to the outer side of the floating box and the hollow part in the middle of the floating box under the extrusion of the bottom end of the floating box, even if the inclined plane formed by the sand grains is met, the floating box is easy to keep balance, the probability of inclination caused by inclination of sand piles is small, and the stability of the sightseeing platform is high; under the same buoyancy requirement, the length and width of the hollow regular-prism-shaped buoyancy tank are larger, when the buoyancy tank is in contact with the seabed, the distance between the supporting points is farther, and the whole sightseeing platform is more stable; the distance between the floating box and the horizontal plane is increased through the stand column, the center of the sightseeing platform is reduced, and the stability of the sightseeing platform is further improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on these drawings without inventive efforts.

FIG. 1 is a schematic perspective view of a sightseeing platform in an embodiment of the application;

FIG. 2 shows a schematic structural view of the platform, column, pontoon and leg of FIG. 1;

FIG. 3 shows a schematic structural diagram of a platform in an embodiment of the present application;

FIG. 4 shows a schematic structural view of the truss structure of FIG. 3;

FIG. 5 showsbase:Sub>A cross-sectional view A-A of the truss structure of FIG. 4;

FIG. 6 illustrates a cross-sectional view B-B of the truss structure of FIG. 4;

FIG. 7 illustrates a cross-sectional view C-C of the truss structure of FIG. 4;

FIG. 8 shows a cross-sectional view D-D of the truss structure of FIG. 4;

the labels in the figure are: 100-main body, 101-column, 102-working chamber, 200-outer edge truss, 201-first outer edge truss, 202-second outer edge truss, 203-third outer edge truss, 300-radial truss, 301-first radial truss, 302-second radial truss, 303-third radial truss, 400-connecting truss, 401-first connecting truss, 402-second connecting truss, 403-third connecting truss, 500-parallel truss, 501-first parallel truss, 502-second parallel truss, 600-deck, 601-deck building, 700-buoyancy tank, 701-buoyancy rod, 800-leg, 801-driving mechanism, 900-seabed rock-soil layer.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The application is described below with reference to specific embodiments in conjunction with the following drawings:

as shown in fig. 1-8, the present embodiment provides an offshore sightseeing platform, comprising buoyancy tanks 700, a platform and columns 101. The floating box 700 is in a hollow regular prism shape, so that the sightseeing platform can obtain buoyancy, the sightseeing platform can float on the water surface and keep balance, and because the floating box 700 is in the hollow regular prism shape, when the sightseeing platform needs to be in contact with the seabed or is fixed with the sightseeing platform, sand grains on the seabed move to the outer side of the floating box 700 and the hollow part in the middle of the floating box 700 under the extrusion of the bottom end of the floating box 700, even if the floating box 700 meets an inclined plane formed by sand grains accumulation, the floating box 700 is easy to keep balance, the probability of inclination due to the inclination of sand piles is small, and the stability of the sightseeing platform is improved. It can be understood that, under the same buoyancy requirement, the hollow regular prism-shaped buoyancy tank 700 has larger length and width dimensions, when the buoyancy tank 700 is in contact with the seabed, the distance between the supporting points is farther, and the whole sightseeing platform is more stable.

The platform is arranged above the buoyancy tank 700; a plurality of stands 101 set up along the circumference interval of flotation tank 700, and the both ends of stand 101 respectively with flotation tank 700 and main part 100 fixed connection, increase the distance of flotation tank 700 apart from the horizontal plane through stand 101, reduce sightseeing platform's center, further improve sightseeing platform's stability.

The buoyancy tank 700 includes a plurality of sequentially connected buoyancy rods 701, and the buoyancy rods 701 have a hollow structure to provide buoyancy. The number of the upright posts 101 is the same as that of the floating rods 701, and the upright posts 101 are arranged at the joints of the adjacent floating posts, that is, in the embodiment, the upright posts 101 are arranged around the central line of the buoyancy tank 700 at equal angular intervals, so that the structure is symmetrical, and the stability is good.

Referring to fig. 1 and 3, in the present embodiment, the buoyancy tank 700 includes five buoyancy rods 701, and the five buoyancy rods 701 are sequentially connected to make the buoyancy tank 700 be a hollow regular pentagonal prism, and meanwhile, the embodiment includes five vertical columns 101, and it can be understood that the buoyancy tank 700 supports the platform through the five vertical columns 101, so that more supporting points are ensured under the requirement of lowering the center of gravity, and the stability of the platform can be improved.

Considering that there is a need to fix the sightseeing platform on a certain place on the coast in part of the site, in this embodiment, referring to fig. 2, the sightseeing platform further comprises a plurality of spud legs 800, each spud leg 800 sequentially penetrates through the platform, the upright 101 and the buoyancy tank 700, through holes for the spud legs 800 to penetrate through are arranged on the platform, the upright 101 and the buoyancy tank 700, and it can be understood that the through holes are not communicated with the floating rod 701 or the inner cavity of the upright 101, so as to prevent the floating rod 701 or the upright 101 from entering water.

Each spud leg 800 is connected with a corresponding driving mechanism 801, an operation cavity 102 is arranged in the platform, the driving mechanism 801 is arranged in the operation cavity 102 of the platform, the driving mechanism 801 can drive the spud leg 800 to reciprocate along the length direction of the spud leg, the driving mechanism 801 can be a gear-rack type lifting system or a hydraulic pin type lifting system, in this embodiment, the driving mechanism 801 is the hydraulic pin type lifting system, the outer wall of the spud leg 800 is provided with a plurality of pin holes along the length direction of the spud leg 800, an upper ring beam of the hydraulic pin type lifting system is fixedly connected with the platform, a lower ring beam of the hydraulic pin type lifting system is movably connected with the spud leg 800, pins of the hydraulic pin type lifting system can be sequentially inserted into the pin holes on the spud leg 800, the lifting of the spud leg 800 is realized in a stepping mode compared with the lifting of the platform, and the plurality of spud legs 800 are all inserted into the seabed rock-soil layer 900 through the hydraulic pin type lifting system, so as to ensure the stability of the platform.

The platform includes main part 100 and truss structure, and main part 100 is regular prism form, and main part 100 can be hollow structure to make main part 100 float on the surface of water, and regular prism form main part 100 can make the structure symmetry and the stability of whole platform, and in this embodiment, flotation tank 700 is the hollow regular pentaprism of both ends open-ended, and main part 100 is regular pentaprism, and the crest line of flotation tank 700 corresponds and is parallel with the crest line one-to-one of main part 100, in order to further promote sightseeing platform's stability.

Referring to fig. 1, the truss structure includes a plurality of outer edge trusses 200, a plurality of radial trusses 300, and a plurality of connecting trusses 400, the trusses are a plane or space structure having triangular units formed of straight bars, and the truss bars are mainly subjected to axial tension or compression, thereby making full use of the strength of materials, reducing self-weight, and increasing rigidity. In this embodiment, the outer edge truss 200, the radial truss 300 and the connecting truss 400 are all planar trusses, and referring to fig. 3 to 6, the planar trusses include two i-beams and a plurality of support rods that are parallel and oppositely disposed, the plurality of support rods are fixedly disposed between the two i-beams by welding, and the plurality of support rods include a plurality of vertical support rods and a plurality of inclined support rods, so that the planar trusses form a plurality of triangular units. The deck 600 is disposed on the top of the main body 100 and the truss structure, so that in this embodiment, the plane of each planar truss is parallel to the direction of the center line of the main body 100, on one hand, the assembly of the truss structure is facilitated, on the other hand, the truss structure can stably support the deck 600, the top of the deck 600 is provided with a deck building 601, the deck building 601 is used for carrying entertainment facilities and the like, and the deck building 601 is preferably a pentagonal prism structure, so as to further improve the stability of the sightseeing platform.

Referring to fig. 1 and 3, a plurality of outer edge trusses 200 are arranged around the circumference of the main body 100, and the number of the outer edge trusses 200 is the same as that of the lateral edges of the main body 100, so that the platform has a central symmetrical structure, and the stability of the platform is improved.

The outer edge truss 200 structure includes first outer edge truss 201 and second outer edge truss 202, first outer edge truss 201 sets up along the radial symmetry of main part 100 with second outer edge truss 202, the interval between first outer edge truss 201 and the second outer edge truss 202 is decremented along the direction of keeping away from main part 100, it can be understood, because outer edge truss 200 is the plane truss, in this embodiment, the projection of outer edge truss 200 structure in the horizontal plane is triangle-shaped or isosceles trapezoid, stability is strong, and the holding power to the deck 600 edge is strong. The radial truss 300 is used to connect the main body 100 and the outer edge truss 200, and one end of the outer edge truss 200 near the main body 100 can be directly and fixedly connected with the main body 100, or referring to fig. 3, the outer edge truss 200 is connected with the main body 100 only through the radial truss 300. The connecting trusses 400 are arranged between the radial trusses 300 and/or the outer edge trusses 200, that is, the connecting trusses 400 may only connect the adjacent radial trusses 300, or may connect the adjacent outer edge trusses 200 and the radial trusses 300, so that the stability of the whole truss structure is further enhanced by the connecting trusses 400, and the strength of the truss structure is improved. In the embodiment, the outer edge truss 200, the radial truss 300 and the connecting truss 400 extend outwards from the main body 100, so that the area and the circumference of the top surface of the platform are increased, and the applicability of the large platform is improved; the platform is in a central symmetrical structure and has high stability because the outer edge trusses 200 are arranged along the circumferential direction of the main body 100; by utilizing the double-layer structure and the triangular units of the truss, enough supporting force is provided for the deck 600 arranged at the top end of the platform, the consumption of consumables is reduced, and the application cost is reduced.

The included angle between the first outer edge truss 201 and the second outer edge truss 202 is an acute angle, that is, the platform in this embodiment may have a longer diagonal line and a longer perimeter under the same weight, and particularly, the platform is mainly used for offshore sightseeing, the longer diagonal line facilitates the interval arrangement of facilities arranged on the platform, and the longer perimeter provides more convenient locations for visitors to visit.

The plurality of radial trusses 300 are arranged around the center line of the main body 100 at equal angular intervals, and the length direction of the radial trusses 300 is located in the radial direction of the main body 100, so that the supporting force of the main body 100 to each radial truss 300 is equal, the improvement of the form stability of the platform in the long-time use process is facilitated, and the service life is prolonged. Further, in this embodiment, the corners of the main body 100 are located on the symmetry axes of the first outer edge truss 201 and the second outer edge truss 202, it can be understood that, at this time, the distance between the main body 100 and the end of the outer edge truss 200 away from the main body 100 is small, the supporting force of the radial truss 300 is correspondingly improved, further, the main body 100 is a hollow structure, a cylinder coaxial with the main body 100 is arranged inside the main body 100, a part of the radial truss 300 can penetrate through the main body 100 and then is fixedly connected with the outer wall of the cylinder, which is equivalent to increasing the connection point between the radial truss 300 and the main body 100, the connection strength between the main body 100 and the radial truss 300 is high, the stability of the platform during bearing can be improved, further, an upright column 101 is arranged on each corner of the main body 100, and the upright column 101 penetrates through and is fixedly connected with the main body 100, so as to maintain the shape of the main body 100, and improve the service life of the main body 100.

The truss structure further comprises a plurality of parallel trusses 500, the parallel trusses 500 are arranged between two adjacent radial trusses 300, the parallel trusses 500 are connected with the outer edge truss 200 and the main body 100, the extension lines of the parallel trusses 500 in the length direction are not connected with the center line of the main body 100, the lifting strength of the trusses is improved, meanwhile, the direction of truss guide force is increased, the stress concentration is reduced, and the durability of the truss structure is improved. Referring to fig. 3 and 4, for the single outer edge truss 200, the present embodiment further includes a first parallel truss 501 and a second parallel truss 502, where the first parallel truss 501 and the second parallel truss 502 are symmetrical with respect to the first radial truss 301, the first parallel truss 501 is located between the first radial truss 301 and the second radial truss 302, two ends of the first parallel truss 501 are fixedly connected to the first outer edge truss 201 and the main body 100, respectively, the second parallel truss 502 is located between the first radial truss 301 and the third radial truss 303, two ends of the second parallel truss 502 are fixedly connected to the second outer edge truss 202 and the main body 100, respectively, and the truss density on the truss structure is increased by the first parallel truss 501 and the second parallel truss 502, so as to increase the strength of the truss structure and enhance the supporting capability of the truss structure at the end away from the main body 100.

Referring to fig. 3, 4 and 8, in the present embodiment, the connecting girder 400 includes a plurality of first connecting girders 401, a plurality of second connecting girders 402 and a plurality of third connecting girders 403; the two ends of the first connecting truss 401 are respectively connected with the first outer edge truss 201 and the second outer edge truss 202 to improve the strength of the outer edge truss 200, and further, the first connecting truss 401 is symmetrical along the symmetry axis of the first outer edge truss 201 and the second outer edge truss 202, so that the single outer edge truss 200 and the connecting truss 400 connected with the single outer edge truss are in an axisymmetric structure and have high stability.

The two ends of the second connecting truss 402 are respectively fixedly connected with the adjacent radial truss 300 and the parallel truss 500, the strength of the truss structure can be greatly improved by connecting the radial truss 300 and the parallel truss 500, the two ends of the second connecting truss 402 are respectively positioned in the middle of the radial truss 300 or the parallel truss 500 fixedly connected with the second connecting truss 402, the trusses of the truss structure are uniformly arranged, the bearing capacity of each part of the truss structure is relatively balanced, and the stability of a stable sightseeing receipt is favorably maintained. The two ends of the third connecting truss 403 are respectively and fixedly connected with the adjacent outer edge truss 200 and the radial truss 300, so that the connecting strength between the outer edge truss 200 and the radial truss 300 is increased.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise" indicate orientations or positional relationships based on the orientation or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be considered as limiting the present application.

It should be noted that all the directional indications in the embodiments of the present application are only used to explain the relative position relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.

In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In addition, descriptions in this application as to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: numerous changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An offshore sightseeing platform, comprising:

the buoyancy tank is in a hollow regular prism shape;

the platform is arranged above the buoyancy tank;

the stand, it is a plurality of the stand is followed the circumference interval of flotation tank sets up, the both ends of stand respectively with the flotation tank with platform fixed connection.

2. The offshore sightseeing platform of claim 1, wherein the buoyancy tank comprises a plurality of sequentially connected buoyancy rods, the number of the upright posts is the same as that of the buoyancy rods, and the upright posts are arranged at the joints of the adjacent buoyancy rods.

3. The offshore sightseeing platform of claim 1 wherein the pontoon comprises five pontoon bars.

4. The offshore sightseeing platform of claim 1 further comprising a plurality of spud legs, each spud leg sequentially penetrates through the platform, the column and the buoyancy tank, each spud leg is connected with a driving mechanism, the driving mechanism is arranged in the platform, and the driving mechanism can drive the spud legs to reciprocate along the length direction of the spud legs.

5. The offshore sightseeing platform of claim 4, wherein the outer wall of the pile leg is provided with a plurality of pin holes along the length direction thereof, the driving mechanism is a hydraulic pin type lifting system, an upper ring beam of the hydraulic pin type lifting system is fixedly connected with the platform, and a lower ring beam of the hydraulic pin type lifting system is movably connected with the pile leg.

6. An offshore sightseeing platform according to claim 1 comprising a main body, a truss structure and a deck, the main body being in the form of a regular prism, the number of side edges of the main body being equal to the number of side edges of the pontoon;

the truss structure is fixedly arranged in the circumferential direction of the main body;

the deck is disposed on top of the main body and the truss structure.

7. The offshore sightseeing platform of claim 6 wherein the truss structure comprises a plurality of outer edge trusses, a plurality of radial trusses, and a plurality of connecting trusses;

the outer edge trusses are arranged around the circumference of the main body, the number of the outer edge trusses is the same as that of the lateral edges of the main body, the outer edge truss structure comprises a first outer edge truss and a second outer edge truss, the first outer edge truss and the second outer edge truss are symmetrically arranged along the radial direction of the main body, and the distance between the first outer edge truss and the second outer edge truss is gradually reduced along the direction far away from the main body;

the radial truss is connected with the main body and the outer edge truss;

the connecting truss is arranged between the radial truss and/or the outer edge truss.

8. The offshore sightseeing platform of claim 7 wherein a plurality of the radial trusses are equiangularly spaced about a centerline of the main body, the length of the radial trusses being in the radial direction of the main body.

9. The offshore sightseeing platform of claim 7 wherein the truss structure further comprises a plurality of parallel trusses disposed between two adjacent radial trusses, the parallel trusses connecting the outer edge truss to the main body, the parallel trusses not meeting the center line of the main body along their lengthwise extension.

10. The offshore sightseeing platform of claim 9 wherein the connecting trusses comprise a plurality of first connecting trusses, a plurality of second connecting trusses, and a plurality of third connecting trusses;

two ends of the first connecting truss are respectively and fixedly connected with the first outer edge truss and the second outer edge truss;

two ends of the second connecting truss are respectively and fixedly connected with the adjacent radial truss and the parallel truss;

and two ends of the third connecting truss are respectively and fixedly connected with the adjacent outer edge truss and the radial truss.

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