CN218771867U

CN218771867U - Photovoltaic support

Info

Publication number: CN218771867U
Application number: CN202222744726.9U
Authority: CN
Inventors: 董晓明; 张利丰
Original assignee: Zhejiang Hongxiang Steel Structure Co ltd
Current assignee: Zhejiang Hongxiang Zhuneng Technology Co ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-03-28
Anticipated expiration: 2032-10-18

Abstract

The utility model discloses a photovoltaic support, its each node all adopts bolted connection, strengthens the intensity of node, safe and reliable. A photovoltaic bracket comprises a plurality of concrete bearing platforms which are arranged on a roof in a matrix manner; the upper surface of each concrete bearing platform is bolted with a square pipe column, and the square pipe column is vertical to the concrete bearing platform; the top of the square pipe column in the same row is bolted with a steel pipe main beam, and a plurality of steel pipe main beams are arranged in parallel; the upper surface of the steel pipe main beam is bolted with a crossed steel pipe secondary beam, the steel pipe secondary beam and the steel pipe main beam are mutually and vertically connected, and a folding part corner brace is bolted between the steel pipe secondary beam and the square tubular column; two side surfaces of one square pipe column are respectively connected with a folding part angle brace, and the square pipe column, the steel pipe secondary beam and the folding part angle brace form a triangle; parallel steel pipe purlins are installed between two adjacent steel pipe secondary beams, the steel pipe purlins stretch across the steel pipe main beam and are perpendicular to each other, and the steel pipe purlins and the steel pipe main beam are fixed through a bent purlin supporting plate in a bolted mode.

Description

Photovoltaic support

Technical Field

The utility model belongs to the technical field of the support, specifically speaking relates to a photovoltaic support.

Background

According to the characteristics of small capacity, large number of farmers and photovoltaic power stations, non-standardized house types and wide installation region range, the support is installed on the farmer roof in a component welding mode, so that the high construction potential safety hazard is realized, the construction efficiency is low, the welding quality of the thin-wall section welded in an outdoor environment cannot be controlled, the plasticity and toughness of a welding joint are poor, the strength of the support is greatly reduced, and the service life and the wind resistance of the support are reduced.

The traditional photovoltaic support members are usually connected by welding, the welding process is complex and various, the material wall thickness of the photovoltaic support members is only 2.0mm and 2.5mm, the welding quality is influenced by various factors, the welding quality is not easy to control, especially when the high temperature and cooling are unevenly distributed, the welding residual stress and residual deformation of the support structure can be caused, and the bearing capacity, rigidity and service performance of the structure are influenced to a certain extent;

and when the plasticity and the toughness of the welding joint are poor, defects may occur during welding, and the fatigue strength may be reduced, thereby reducing the service life of the bracket.

Disclosure of Invention

In view of the shortcoming of above background art, the utility model aims at providing a photovoltaic support, its each node all adopts bolted connection, strengthens the intensity of node, safe and reliable.

In order to solve the technical problem, the purpose of the utility model is to realize like this:

a photovoltaic bracket comprises a plurality of concrete bearing platforms which are arranged on a roof in a matrix manner;

the upper surface of each concrete bearing platform is bolted with a square tubular column, and the square tubular column is vertical to the concrete bearing platform; the top of the square pipe column in the same row is bolted with a steel pipe main beam, and a plurality of steel pipe main beams are arranged in parallel;

the upper surface of the steel pipe main beam is bolted with a crossed steel pipe secondary beam, the steel pipe secondary beam and the steel pipe main beam are mutually vertically connected, and a folding part corner brace is bolted between the steel pipe secondary beam and the square tubular column; two side surfaces of one square pipe column are respectively connected with a folding part angle brace, and the square pipe column, the steel pipe secondary beam and the folding part angle brace enclose a triangle;

parallel steel pipe purlins are installed between two adjacent steel pipe secondary beams, the steel pipe purlins stretch across the steel pipe main beam and are perpendicular to each other, and the steel pipe purlins and the steel pipe main beam are fixed through a bent purlin supporting plate in a bolted mode.

On the basis of the above scheme and as a preferable scheme of the scheme: two U-shaped screws are embedded in the concrete bearing platform; the bottom surface welding of square tubular column has the post bottom plate, and the post bottom plate is installed on the concrete cushion cap, and two U type screw rods pass post bottom plate respectively and are screwed on the nut and fix.

On the basis of the above scheme and as a preferable scheme of the scheme: the concrete bearing platform is a square prismatic platform; the concrete bearing platform is provided with through positioning grooves on four side surfaces, and two ends of each positioning groove extend to the middle positions of the upper bottom surface and the lower bottom surface; the connecting lines of the two opposite positioning grooves are in an isometric cross shape.

On the basis of the above scheme and as a preferable scheme of the scheme: a space is arranged between the column bottom plate and the concrete bearing platform, and a gasket is sleeved on the U-shaped screw; and a fine stone concrete layer is filled between the column bottom plate and the concrete bearing platform.

On the basis of the above scheme and as a preferable scheme of the scheme: the bottom surface of the concrete bearing platform is fixedly bonded with the roof through structural adhesive.

On the basis of the above scheme and as a preferable scheme of the scheme: the folding clamp plate is also included; the folding clamp plate comprises a first plate body, the two side edges of the first plate body extend and bend to form vertical first supporting plates, first through holes are formed in the first plate body, the top of the first plate body is attached to the side faces of the steel pipe main beam, and the bottom of the first plate body and the first supporting plates are respectively attached to and clamped with the two side faces of the square pipe column; the bolt penetrates through the first through hole and is respectively fixed with the steel pipe main beam and the square tubular column by screwing the nut; the steel pipe main beam is erected on the first supporting plate,

the top of one pipe column is provided with two folding clamp plates for clamping and fixing the steel pipe main beam;

the two side edges of the bottom of the first plate body extend and bend to form a vertical first connecting plate; the two first connecting plates are oppositely arranged, and the first connecting plates are provided with second through holes;

the folding part angle brace comprises a second plate body, the two side edges of the second plate body extend and bend to form second supporting plates which are arranged oppositely, third through holes are formed in the two end portions of each second supporting plate respectively, bolts penetrate through the two first connecting plates and are fixed with the two second supporting plates at one end of the folding part angle brace through nuts screwed, and the two second supporting plates at the other end of the folding part angle brace are attached to the two side faces of the steel pipe main beam and penetrate through the bolts to be connected and fixed.

On the basis of the above scheme and as a preferable scheme of the scheme: the folded purlin supporting plate comprises a second connecting plate and a third connecting plate, and the second connecting plate and the third connecting plate are perpendicular to each other and are in an L shape; the second connecting plate penetrates through the bolt to be fixedly connected with the steel pipe main beam, and the third connecting plate penetrates through the bolt to be connected with the steel pipe purline.

On the basis of the above scheme and as a preferable scheme of the scheme: the folding piece supporting base is also included; the folding piece supporting seat comprises a third plate body, and the edges of the two sides of the third plate body extend and bend to form fourth connecting plates which are oppositely arranged;

the steel pipe supporting column is in a long strip shape, and two end parts of the steel pipe supporting column are respectively inserted between two fourth connecting plates of the two folding piece supporting seats and penetrate through the bolts for fixing;

the steel pipe columns at the four corners are welded with third plate bodies, and the steel pipe supporting columns are respectively connected with the steel pipe main beams and the steel pipe secondary beams through the folding piece supporting bases to fixedly surround a triangle.

On the basis of the above scheme and as a preferable scheme of the scheme: the device also comprises a U-shaped connecting piece; the U-shaped connecting piece comprises a third supporting plate, and the edges of two sides of the third supporting plate extend and bend to form fifth connecting plates which are oppositely arranged; the continuously spliced steel pipe purlines are inserted into the U-shaped connecting piece, and the fifth connecting plate penetrates through the bolts to be clamped and fixed;

the top edge of the fifth connecting plate extends outwards and is bent to form a reinforcing rib.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

compared with the prior art, the photovoltaic bracket of the utility model,

the concrete bearing platform joint adopts a small concrete bearing platform, the small concrete bearing platform is bonded with the roof structural layer through structural adhesive, and a leveling gap is reserved between the concrete bearing platform and the column bottom plate. The building roof has the advantages of adjustable elevation, light dead weight, strong adhesion with a roof (a structural layer of an original roof), and the like.

The square pipe column is connected with the steel pipe main beam by a folding clamping plate; a folding corner brace and a steel pipe supporting column are additionally arranged between the square pipe column and the steel pipe purline, and the steel pipe supporting column, the square pipe column and the steel pipe purline are arranged in a triangular mode, so that the overall stability is enhanced, the lateral rigidity is improved, and the longitudinal horizontal force is transmitted.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the overall structure of the present invention.

Fig. 3 is a schematic view of the overall structure of the present invention.

Fig. 4 is a schematic view of the structure of the concrete cap of the present invention.

Fig. 5 is a schematic view of the structure of the concrete cap of the present invention.

Fig. 6 is a schematic top view of the concrete cap of the present invention.

FIG. 7 is a schematic view of a gusset construction of the present invention.

Fig. 8 is a schematic view of the structure of the flap purlin pallet of the present invention.

Fig. 9 is a schematic view of the connecting structure of the folded purlin pallet of the invention.

Fig. 10 is a schematic view of the structure of the folding splint of the present invention.

Fig. 11 is a schematic view of the folding splint structure of the present invention.

FIG. 12 is a schematic view of a supporting seat of the folding member of the present invention.

Fig. 13 is a schematic view of the U-shaped connector structure of the present invention.

Fig. 14 is an enlarged structural diagram of a part a in fig. 1.

Fig. 15 is an enlarged view of a portion B of fig. 1.

Reference numerals: a concrete cap 01; a U-shaped screw 010; a positioning groove 011; a gasket 012; fine stone concrete layer 013; a square pipe column 02; a column base plate 020; a steel pipe girder 03; a steel pipe secondary beam 04; a fold gusset 05; a second plate body 050; a second bracing plate 051; a third through hole 0510; a steel pipe purline 06; a folded purlin supporting plate 07; a second connecting plate 070; a third connecting plate 071; a folder plate 08; a first plate body 080; a first through hole 0800; a first stay plate 081; a first connection plate 082; a second via 0820; a fold support base 09; a third plate 090; a fourth link plate 091; a steel pipe support pillar 10; a U-shaped connecting piece 11; a third strut plate 110; a fifth connecting plate 111; a reinforcing rib 112;

Detailed Description

The present invention will be further described with reference to the following detailed description;

the embodiment provides a photovoltaic bracket, which comprises a plurality of concrete bearing platforms 01 which are arranged on a roof in a matrix manner; the concrete bearing platform 01 is made of concrete precast blocks; placing a required number of concrete bearing platforms 01 according to the area of the roof, wherein the concrete bearing platforms 01 are arranged longitudinally and transversely; the concrete bearing platform 01 is used for improving the stability of the structure;

the upper surface of each concrete bearing platform 01 is bolted with a square pipe column 02, and the square pipe column 02 is vertical to the concrete bearing platform 01; the square pipe column 02 adopts a galvanized square pipe; the top of the square pipe column 02 in the same row is bolted with a steel pipe girder 03, and a plurality of steel pipe girders 03 are arranged in parallel; the steel pipe girders 03 adopt galvanized square pipes, and each steel pipe girder 03 has the supporting function of a square pipe column 02;

the upper surface of the steel pipe main beam 03 is bolted with a cross steel pipe secondary beam 04; the steel pipe secondary beam 04 also adopts a galvanized square pipe; the steel pipe secondary beam 04 and the steel pipe main beam 03 are vertically connected with each other, and a folding part corner brace 05 is bolted between the steel pipe secondary beam 04 and the square tubular column 02; the folding part knee brace 05 is processed by galvanized plates through sheet metal processing; two side surfaces of a square pipe column 02 are respectively connected with a folding part angle brace 05, and the square pipe column 02, the steel pipe secondary beam 04 and the folding part angle brace 05 form a triangle in a surrounding mode; the folding part angle brace 05 is used as an inclined brace and can play a role in stabilizing the opposite pipe column 02 in the lateral direction;

parallel steel pipe purlins 06 are arranged between two adjacent steel pipe secondary beams 04, and the steel pipe purlins 06 are also galvanized square pipes; the steel pipe purline 06 crosses the steel pipe girder 03 and is vertical to the steel pipe girder 03, and the steel pipe purline 06 and the steel pipe girder 03 are bolted and fixed through a folding purline supporting plate 07. The steel pipe girder 03 and the steel pipe purline 06 form criss-cross connection,

as described above, the concrete cap 01 is placed at a position where it is to be installed; the steel pipe main beam 03, the steel pipe secondary beam 04 and the steel pipe purline 06 are connected to the square pipe column 02 in an intersecting manner, the load is transmitted to the steel pipe main beam 03 from the steel pipe purline 06 due to the stress of the photovoltaic support, the load is transmitted to the square pipe column 02 from the steel pipe main beam 03, and the load is transmitted to the concrete bearing platform 01 from the square pipe column 02.

Holes are respectively punched in the steel pipe purline 06 and the steel pipe main beam 03, the steel pipe purline 06 and the steel pipe main beam 03 are connected through the galvanized flanging piece through the hexagon bolts, welding is avoided through bolt connection, the site installation is simple and convenient, and meanwhile, the influence of the construction worker technology and the welding process on the node strength is avoided; for farmers who have flat roofs, the support is arranged on the roof, and the square tubular column 02 is more than two meters; can enough utilize the sunlight, can also shelter from the rainwater, great improvement space utilization.

Further, two U-shaped screw rods 010 are embedded in the concrete bearing platform 01; four connecting screws protrude from the two U-shaped screws 010;

the bottom surface of the square pipe column 02 is welded with a column bottom plate 020, the column bottom plate 020 is installed on the concrete bearing platform 01, and the two U-shaped screws 010 penetrate through the column bottom plate 020 and are fixed by screwing nuts.

As described above, the column bottom plate 020 is made of a metal plate, the column bottom plate 020 is provided with a hole for the U-shaped screw 010 to pass through, and the concrete bearing platform 01 is fixed by a nut, so that the later-stage disassembly and assembly maintenance are facilitated;

further, the concrete bearing platform 01 is a square prism platform; the four side surfaces of the concrete bearing platform 01 are provided with through positioning grooves 011, and the two ends of the positioning grooves 011 extend to the middle positions of the upper bottom surface and the lower bottom surface; the connecting lines of the two opposite positioning slots 011 are in an isometric cross. Preferably, the concrete bearing platform 01 can also be in a circular truncated cone shape;

as described above, the positioning grooves 011 are formed on the four side surfaces of the concrete bearing platform 01 of the square frustum; the positioning is convenient for on-site positioning, after the positioning line is bounced by on-site paying-off, a cross line trace exists, the concrete bearing platform 01 is placed upwards, and the positioning is accurate and efficient as long as the four positioning grooves 011 are all positioned on the line trace; the concrete bearing platforms 01 are placed in order;

further, a space is arranged between the column bottom plate 020 and the concrete bearing platform 01, and a gasket 012 is sleeved on the U-shaped screw 010; a fine stone concrete layer 013 is filled between the column bottom plate 020 and the concrete cap 01.

As described above, 50mm is reserved between the concrete bearing platform 01 and the column bottom plate 020 for leveling the support structure, and after the support structure is leveled, the gap between the concrete bearing platform 01 and the column bottom plate 020 is filled with fine stone concrete by pouring, so that the integral installation precision and the integral stability of the structure are improved; the utility model is more practical;

further, the bottom surface of the concrete bearing platform 01 is bonded and fixed with the roof through structural adhesive.

As above, the concrete cushion cap 01 of photovoltaic support adopts little concrete cushion cap 01, bonds with the roofing through the structure glue (with the pulling force that the structure glue and concrete bond were glued to drawing experimental survey, the experimental result shows that it is good to draw the effect, and stability is good), both can improve the stability demand of photovoltaic supporting structure, also very big reduction hoist and mount weight reduces the construction degree of difficulty, conveniently hoists, and material saving promotes construction factor of safety.

The problem of traditional photovoltaic support in order to increase the weight of concrete cushion cap 01, promote the stability of structural system, and the 01 shortcoming of bulky concrete cushion cap is also comparatively showing, and the hoist and mount degree of difficulty is big, and construction factor of safety is low, and the construction installation is comparatively difficult.

Further, a folding piece clamping plate 08 is also included; the folding clamping plate 08 is formed by processing a galvanized metal plate through sheet metal; the folding clamping plate 08 comprises a first plate body 080, the two side edges of the first plate body 080 extend and bend to form vertical first supporting plates 081, first through holes 0800 are formed in the first plate body 080, the top of the first plate body 080 is attached to the side faces of the steel pipe main beam 03, and the bottom of the first plate body 080 and the first supporting plates 081 are respectively attached to and clamped with the two side faces of the square pipe column 02; the bolt penetrates through the first through hole 0800 and is respectively fixed with the steel pipe main beam 03 and the square pipe column 02 by screwing nuts; the steel pipe girder 03 is erected on the first supporting plate 081,

the top of one pipe column 02 is provided with two folding clamp plates 08 for clamping and fixing a steel pipe main beam 03;

as mentioned above, the steel pipe main beam 03 is erected on the square pipe column 02, a folding clamp plate 08 is respectively installed on two sides of the top of the square pipe column 02, one end of the folding clamp plate 08 is connected with the steel pipe main beam 03, and the other end of the folding clamp plate 08 is connected with the square pipe column 02, so as to play a role in clamping and fixing the steel pipe main beam 03;

the two side edges of the bottom of the first plate body 080 extend and bend to form a vertical first connecting plate 082; the two first connecting plates 082 are oppositely arranged, and second through holes 0820 are arranged on the first connecting plates 082;

the folding part angle support 05 comprises a second plate body 050, the two side edges of the second plate body 050 extend and bend to form second supporting plates 051 which are arranged oppositely, third through holes 0510 are formed in the two end portions of each second supporting plate 051 respectively, bolts penetrate through the two first connecting plates 082 and are fixed with the two second supporting plates at one end of the folding part angle support 05 through nuts screwed, and the two second supporting plates at the other end of the folding part angle support 05 are attached to the two side faces of the steel pipe main beam 03 and penetrate through the bolts to be connected and fixed.

As described above, the folding part angle brace 05 is connected between the steel pipe secondary beam 04 and the steel pipe main beam 03 and arranged in a triangular shape, so that the overall stability is enhanced, the lateral rigidity is improved, and the longitudinal horizontal force is transmitted.

Further, the folded purlin supporting plate 07 comprises a second connecting plate 070 and a third connecting plate 071, and the second connecting plate 070 and the third connecting plate 071 are perpendicular to each other and are in an L shape; the second connecting plate 070 penetrates through a bolt to be fixedly connected with the steel pipe main beam 03, and the third connecting plate 071 penetrates through a bolt to be connected with the steel pipe purline 06.

As described above, the steel pipe main beam 03 and the steel pipe purline 06 are screwed together by the folding purline supporting plate 07, so that the increase and the stability are realized; the folding clamp plate 08 is connected with the square pipe column 02, the steel pipe main beam 03 and a folding part angle brace 05 connected with the steel pipe purline 06, and the folding part angle brace is connected with the steel pipe purline 06 through a hexagon bolt to form a whole. The integral strength of the node can be enhanced, and the method is safe and reliable.

Preferably, a U-shaped reinforcing rib 112 is punched on the first plate body 080 of the folding clamping plate 08 to improve the strength and solve the problem of insufficient strength caused by thin material wall and large area;

further, the folding piece supporting base 09 is further included; the folded piece supporting seat comprises a third plate body 090, and two side edges of the third plate body 090 extend and bend to form a fourth connecting plate 091 which is arranged oppositely;

the steel tube supporting seat is characterized by further comprising a steel tube supporting column 10, wherein the steel tube supporting column 10 is long, two end parts of the steel tube supporting column 10 are respectively inserted between the two fourth connecting plates 091 of the two folded supporting seats and penetrate through the bolts for fixing;

the third plate 090 is welded on the steel pipe columns at the four corners, and the steel pipe support columns 10 are respectively connected with the steel pipe main beams 03 and the steel pipe secondary beams 04 through the folding piece support bases 09 and fixedly surround into a triangle.

As described above, the steel pipe support columns 10 are connected with the steel pipe main beam 03 and the steel pipe secondary beam 04, the folding piece support base 09 is welded on the square pipe column 02, the positioning effect is achieved by factory welding, and the length standards of the steel pipe support columns 10 are uniform; the third plate body 090 on the steel pipe main beam 03 and the steel pipe secondary beam 04 are welded and fixed, the field adjustability is strong, and the operation is convenient;

further, the device also comprises a U-shaped connecting piece 11; the U-shaped connecting piece 11 comprises a third supporting plate 110, and both side edges of the third supporting plate 110 extend and bend to form fifth connecting plates 111 which are oppositely arranged; the continuously spliced steel pipe purline 06 is inserted into the U-shaped connecting piece 11, and the fifth connecting plate 111 penetrates through the bolt to be clamped and fixed;

the top edge of the fifth connecting plate 111 extends outwards and is bent to form a reinforcing rib 112.

As described above, the steel pipe purlins 06 at the two end portions are coated from bottom to top through the U-shaped connecting pieces 11 at the butt joint nodes of the steel pipe purlins 06, and are fixedly penetrated through by the hexagon bolts to form rigid connection, so that the steel pipe purlins are convenient to install and simple in process. In order to enhance the strength of the U-shaped connecting piece 11, two edges of the upper opening are folded outwards to form reinforcing ribs 112.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like refer to the orientation or position relationship shown in the drawings, or the orientation or position relationship that the product of the present invention is usually placed when in use, or the orientation or position relationship that one skilled in the art conventionally understands, and are only for convenience of describing the present invention and simplifying the description, but do not refer to or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used 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. In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected;

the above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model should be covered within the protection scope of the utility model.

Claims

1. A photovoltaic support, its characterized in that: the concrete bearing platforms are arranged on the roof in a matrix manner;

the upper surface of each concrete bearing platform is bolted with a square pipe column, and the square pipe column is vertical to the concrete bearing platform; the top of the square pipe column in the same row is bolted with a steel pipe main beam, and a plurality of steel pipe main beams are arranged in parallel;

the upper surface of the steel pipe main beam is bolted with a crossed steel pipe secondary beam, the steel pipe secondary beam and the steel pipe main beam are mutually and vertically connected, and a folding part corner brace is bolted between the steel pipe secondary beam and the square tubular column; two side surfaces of one square pipe column are respectively connected with a folding part angle brace, and the square pipe column, the steel pipe secondary beam and the folding part angle brace form a triangle;

2. The photovoltaic support of claim 1, wherein: two U-shaped screws are embedded in the concrete bearing platform;

the bottom surface welding of square tubular column has the post bottom plate, and the post bottom plate is installed on the concrete cushion cap, and two U type screw rods pass post bottom plate respectively and are screwed on the nut and fix.

3. The photovoltaic support of claim 2, wherein: the concrete bearing platform is a square prismatic platform; the concrete bearing platform is provided with through positioning grooves on four side surfaces, and two ends of each positioning groove extend to the middle positions of the upper bottom surface and the lower bottom surface; the connecting lines of the two opposite positioning grooves are in an isometric cross shape.

4. The photovoltaic support of claim 2, wherein: a space is arranged between the column bottom plate and the concrete bearing platform, and a gasket is sleeved on the U-shaped screw; and a fine stone concrete layer is filled between the column bottom plate and the concrete bearing platform.

5. The photovoltaic support of claim 1, wherein: the bottom surface of the concrete bearing platform is fixedly bonded with the roof through structural adhesive.

6. The photovoltaic support of claim 1, wherein: the folding clamp plate is also included; the folding clamp plate comprises a first plate body, the two side edges of the first plate body extend and bend to form vertical first supporting plates, first through holes are formed in the first plate body, the top of the first plate body is attached to the side faces of the steel pipe main beam, and the bottom of the first plate body and the first supporting plates are respectively attached to and clamped with the two side faces of the square pipe column; the bolt penetrates through the first through hole and is respectively fixed with the steel pipe main beam and the square tubular column by screwing the nut; the steel pipe main beam is erected on the first supporting plate,

7. The photovoltaic support of claim 1, wherein: the folded purlin supporting plate comprises a second connecting plate and a third connecting plate, and the second connecting plate and the third connecting plate are perpendicular to each other and are in an L shape; the second connecting plate penetrates through the bolt to be fixedly connected with the steel pipe main beam, and the third connecting plate penetrates through the bolt to be connected with the steel pipe purline.

8. The photovoltaic support of claim 1, wherein: the folding piece supporting base is also included; the folding piece supporting seat comprises a third plate body, and the edges of the two sides of the third plate body extend and bend to form fourth connecting plates which are oppositely arranged;

9. The photovoltaic support of claim 1, wherein: the device also comprises a U-shaped connecting piece; the U-shaped connecting piece comprises a third supporting plate, and the edges of two sides of the third supporting plate extend and bend to form fifth connecting plates which are oppositely arranged; the continuously spliced steel pipe purlines are inserted into the U-shaped connecting piece, and the fifth connecting plate penetrates through the bolts to be clamped and fixed;