Large-span space truss structure for photovoltaic carport

Abstract

The utility model discloses a large-span space truss structure for a photovoltaic shed, which comprises a truss main body, a plurality of purlines arranged on the truss main body, a plurality of support beams arranged on the purlines, and locking pieces arranged on the support beams and capable of fixing photovoltaic panels. The supporting beam comprises two top supporting parts which are symmetrically arranged, a cross arm which is connected with the top ends of the two top supporting parts, and a bottom supporting part which is connected with the bottom ends of the two top supporting parts and can abut against the purline when the top supporting parts are pressed; a limiting part for limiting the end parts of two adjacent photovoltaic panels on the cross arm to form a splicing seam is arranged in the middle of the cross arm, and the locking piece is connected with the limiting part through the splicing seam to fix the photovoltaic panels; according to the utility model, the acting force of external environment wind or snow load on the photovoltaic panel can be resisted, so that the overall wind-resistant capability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic carport structures, in particular to a large-span space truss structure used for photovoltaic carports. Background Art

[0002] With the development of renewable energy technology and the promotion of urban green buildings, photovoltaic carports, as important facilities for energy conservation and carbon reduction, have been widely used in public and private areas. Traditional photovoltaic carports include steel beams, steel columns, horizontal supports, purlins, and photovoltaic panels laid on the purlins. The photovoltaic carport of this structure generally has a span of 5 to 8 meters, which is a small-span photovoltaic carport. When the span is greater than 8 meters, it is a large-span carport. At this time, as the span increases, the load-bearing capacity of the photovoltaic carport decreases accordingly. Since the middle part of the large-span photovoltaic carport is suspended in the air, the large-span carport is prone to stress concentration in the middle, with weak load-bearing capacity and prone to bending and deformation. It is difficult to cope with extreme climate conditions such as strong winds or heavy snow. The overall wind or snow resistance is weak, the stability is low, and collapse accidents are prone to occur. Utility Model Content

[0003] The utility model aims to provide a large-span space truss structure for a photovoltaic carport, which can resist the force of external environmental wind or snow load on photovoltaic panels, thereby improving the overall wind or snow resistance.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A large-span spatial truss structure for a photovoltaic carport, comprising a truss body, a plurality of purlins arranged on the truss body, a plurality of support beams arranged on the purlins, and locking pieces arranged on the support beams for fixing photovoltaic panels; the support beams comprise two symmetrically arranged top support parts, a cross arm connecting the top ends of the two top support parts, and a bottom support part connecting the bottom ends of the two top support parts and abutting against the purlins when the top support parts are under pressure; a limiting part for limiting the ends of two adjacent photovoltaic panels on the cross arm to form a splicing seam is arranged in the middle of the cross arm, and the locking piece is connected to the limiting part through the splicing seam to fix the photovoltaic panels.

[0006] On the basis of the above technical solution, the present invention can be improved as follows:

[0007] Furthermore, the support beam is a long sheet metal part with an M-shaped cross-section, including two vertically arranged wing plates, the bottom ends of the two wing plates form a straight flange, and the flange is fixed to the top of the purlin; the top ends of the two wing plates form a straight top plate as the top support part, and the ends of the two top plates are bent and extended toward the bottom of the support beam to form an inclined inner plate; the bottom ends of the two inner plates are bent and connected to form a straight bottom plate as the bottom support part, and a gap is formed between the bottom plate and the top surface of the purlin; the two wing plates and the bottom plate form a V-shaped water collecting trough.

[0008] Furthermore, the cross arm is a sheet metal part with an inverted U-shaped cross section, including a cross arm piece overlapped on the two top supporting parts of the support beam, and an ear piece formed by bending both ends of the cross arm piece, and the ear piece is fixedly connected to the top end of the wing plate piece of the support beam.

[0009] Furthermore, a limiting rib is formed on the bottom surface of the cross arm near the end, and the limiting rib, the end of the cross arm and the ear piece form a limiting groove that can cooperate with the top support part of the support beam.

[0010] Furthermore, a rectangular limit block is formed in the middle of the cross arm as the limit portion, and the width of the rectangular limit block corresponds to the width of the photovoltaic panel joint.

[0011] Furthermore, the locking piece includes a single-sided fixing code and a double-sided fixing code, the single-sided fixing code is used to fix the outer end of the photovoltaic panel near the edge of the truss body, and the double-sided fixing code is used to fix the opposite ends of two adjacent photovoltaic panels.

[0012] Furthermore, the single-sided fixing code includes a single-sided locking plate, and pressure feet are arranged on opposite sides of the single-sided locking plate, one of the pressure feet vertically extends out of the top surface of the single-sided locking plate and is bent at the end to form a single-sided top pressure plate, and the other pressure foot vertically extends out of the bottom surface of the single-sided locking plate and is bent at the end to form a single-sided bottom pressure plate; when the outer end of the photovoltaic panel is clamped near the edge of the truss body, the single-sided bottom pressure plate of the single-sided fixing code abuts against the top surface of the cross arm and fits with the side of the rectangular limit block on the cross arm, the single-sided top pressure plate of the single-sided fixing code abuts against the top surface of the photovoltaic panel, and the single-sided locking plate is threadedly connected to the threaded through hole arranged on the rectangular limit block by bolts.

[0013] Furthermore, the double-sided fixing code includes a double-sided locking plate, and pressure feet are arranged on the opposite sides of the double-sided locking plate, wherein the two pressure feet both extend vertically out of the top surface of the double-sided locking plate and are bent at the ends to form a double-sided top pressure plate; when clamping the opposite ends of two adjacent photovoltaic panels, the double-sided locking plate is placed in the splicing seam of the two adjacent photovoltaic panels, and is threadedly connected to the threaded through holes arranged on the rectangular limit block through bolts, and the two pressure feet extend out of the top of the splicing seam, and make the two double-sided top pressure plates respectively abut the top surfaces of the two adjacent photovoltaic panels.

[0014] Furthermore, the truss body includes a plurality of rods and a connecting hub for splicing the rods; the top of the connecting hub supports the purlin through a bracket, and a screw hole is provided on the connecting hub; a through hole connected to the internal tubular cavity is opened at the connecting end of the rod, a high-strength bolt is arranged inside the rod, and a bolt column of the high-strength bolt passes through the through hole to the outside of the rod; a threaded section and a light column section are provided on the bolt column, the threaded section is located at the bolt column away from the bolt cap, the light column section is located at the bolt column close to the bolt cap, and a limiting groove is provided on the light column section; when connected, the bolt column threaded section of the high-strength bolt is connected to the screw hole on the connecting hub, and a sleeve is sleeved on the bolt column, one end of the sleeve abuts the outer surface of the connecting hub, and the other end of the sleeve abuts the end face of the connecting end of the connecting rod; a threaded through hole is provided on one side of the sleeve, which radially penetrates the inner cavity of the sleeve, and a screw that can be inserted into the interior of the sleeve and limitedly matched with the limiting groove on the bolt column of the high-strength bolt is threadedly connected in the threaded through hole.

[0015] Furthermore, a plurality of the rods are connected to each other through the connection hub to form the truss body with a spatial triangular structure.

[0016] Compared with the prior art, the utility model technology has the following advantages:

[0017] The utility model is provided with two top supporting parts, a bottom supporting part and a cross arm. When the wind or snow load in the external environment generates a force on the photovoltaic panel, the end of the photovoltaic panel generates a corresponding pressure on the cross arm, which is transmitted to the bottom supporting part through the two top supporting parts. After the bottom supporting part is subjected to the force, it deforms accordingly and abuts against the purlin, forming a reaction force which is then transmitted to the truss body to resist the force of the wind or snow in the external environment on the photovoltaic panel, thereby increasing the overall stiffness of the large-span space truss structure and improving the wind or snow resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is the general assembly drawing of the utility model of a large-span space truss structure for a photovoltaic carport;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model when the photovoltaic panel is fixed by a single-side fixing code;

[0021] Figure 3 This is a schematic diagram of the structure of the utility model when the double-sided fixing code fixes the photovoltaic panel;

[0022] Figure 4 This is the installation drawing of the purlins of the utility model truss structure;

[0023] Figure 5 This is the node installation diagram of the utility model truss structure.

[0024] Markings on the accompanying drawings: 1-truss body, 101-rod, 102-connecting center, 2-purlin, 3-support beam, 301-wing plate, 302-flange, 303-top plate, 304-inner plate, 305-bottom plate, 4-cross arm, 401-cross arm, 401a-limiting rib, 402-ear, 403-rectangular limiting block, 5-photovoltaic panel, 6-single-sided fixing code, 601-single-sided locking plate, 602-single-sided top pressure plate, 603-single-sided bottom pressure plate, 7-double-sided fixing code, 701-double-sided locking plate, 702-double-sided top pressure plate, 8-high-strength bolt, 801-bolt cap, 802-bolt column, 9-sleeve, 10-screw, 11-support. DETAILED DESCRIPTION

[0025] The following is a further description of the specific embodiments of the present invention in conjunction with the accompanying drawings. The description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each embodiment of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0026] See also Figures 1 to 5 The utility model relates to a large-span space truss structure for a photovoltaic carport, including a truss body 1, a plurality of purlins 2 arranged on the truss body 1, a plurality of support beams 3 arranged on the purlins 2 and capable of supporting photovoltaic panels 5, and locking pieces arranged on the support beams 3 and capable of fixing the photovoltaic panels 5; the purlins 2 and the support beams 3 are arranged vertically and horizontally, and the two are fixedly connected to each other to form a plurality of grids, and the photovoltaic panels 5 are laid on the grids and fixed by locking pieces.

[0027] The support beam 3 includes two symmetrically arranged top support parts, a cross arm 4 connecting the top ends of the two top support parts, and a bottom support part connecting the bottom ends of the two top support parts; a limiting part is arranged in the middle of the cross arm 4, and the limiting part is used to limit the ends of two adjacent photovoltaic panels 5 on the cross arm 4 to form a joint seam, and the locking piece is connected to the limiting part through the joint seam to clamp and fix the photovoltaic panel 5; when the wind or snow load in the external environment exerts force on the photovoltaic panel 5, the end of the photovoltaic panel 5 generates pressure on the cross arm 4 accordingly, which is transmitted to the bottom support part through the two top support parts. After the bottom support part is subjected to the force, it deforms accordingly to abut against the purlin 2, forming a reaction force which is then transmitted to the truss body to resist the force of the external environment wind or snow on the photovoltaic panel, thereby increasing the overall stiffness of the large-span space truss structure and improving the wind or snow resistance.

[0028] Specifically, the support beam 3 in this embodiment is a long strip of sheet metal with an M-shaped cross-section, including two vertically arranged wing plates 301, the bottom ends of the two wing plates 301 are bent 90° outward and extended to form a straight flange 302, and the flange 302 is fixed to the top of the purlin 2 by bolts; the top ends of the two wing plates 301 are bent 90° inward and extended to form a straight top plate 303 as a top support, and the ends of the two top plates 303 are bent 45° toward the bottom direction of the support beam 3 and extended to form an inclined inner plate 304; the wing plates 301, the top plate 303 and the inner plate 304 constitute a triangular support structure, which can increase the support stability of the large-span space truss; the two inner plates 304 The bottom ends of the wing plates 301 are bent and connected to form a straight bottom plate 305 as a bottom support portion, and a gap is formed between the bottom plate 305 and the top surface of the purlin 2. Through the gap, the inner plate 304 can be driven to move accordingly when it is compressed and deformed to buffer the force of the wind on the photovoltaic panel 5, and the bottom plate 305 of the support beam 3 is moved to fit the top surface of the purlin 2 to generate a uniform reaction force to resist the force of the wind on the photovoltaic panel 5, thereby improving the overall strength of the large-span space truss; at the same time, the two wing plates 301 and the bottom plate 305 form a V-shaped water collection trough, which can collect rainwater flowing out from the joints of the photovoltaic panel 5 to prevent rainwater from dripping and wetting the vehicles in the carport.

[0029] In this embodiment, the cross arm 4 is a sheet metal part with an inverted U-shaped cross section, including a cross arm piece 401 overlapped on the two top supporting parts of the support beam 3, and an ear piece 402 formed by bending the two ends of the cross arm piece 401 90 degrees toward the bottom of the cross arm 4, and the ear piece 402 is fixedly connected to the top of the wing plate piece 301 of the support beam 3 by bolts, so that the cross arm 4 is fixedly installed on the support beam 3; the cross arm piece 401 has a limiting rib 401a formed on the bottom surface near the end, and the limiting rib 401a, the end of the cross arm piece 401 and the ear piece 402 form a limiting groove that can cooperate with the top supporting part of the support beam 3. The limiting groove is used to facilitate the installation of the crossarm 4 on the support beam 3; when the top support part of the support beam 3 cooperates with the limiting groove, the limiting rib 401a abuts against the inner plate 304 of the support beam 3, and the ear piece 402 fits with the top of the wing plate 301 of the support beam 3, so as to avoid the shaking of the crossarm 4 and enhance the stability of the crossarm 4; a rectangular limiting block 403 is formed in the middle of the crossarm piece 401 as a limiting part, and the width of the rectangular limiting block 403 corresponds to the width of the joint seam of the photovoltaic panel 5. The photovoltaic panel 5 can be quickly limited on the crossarm 4 through the rectangular limiting block 403, thereby improving the installation efficiency.

[0030] The locking piece includes a single-side fixing code 6 and a double-side fixing code 7 . The single-side fixing code 6 is used to fix the outer end of the photovoltaic panel 5 near the edge of the truss body 1 , and the double-side fixing code 7 is used to fix the opposite ends of two adjacent photovoltaic panels 5 .

[0031] The single-sided fixing code 6 includes a single-sided locking plate 601, and a through hole is set in the middle of the single-sided locking plate 601; pressure feet are set on the opposite sides of the single-sided locking plate 601, one of which extends vertically out of the top surface of the single-sided locking plate 601 and is bent at the end to form a single-sided top pressure plate 602, and the other pressure foot extends vertically out of the bottom surface of the single-sided locking plate 601 and is bent at the end to form a single-sided bottom pressure plate 603; when clamping the outer end of the photovoltaic panel 5 near the edge of the truss body 1, the single-sided bottom pressure plate 603 of the single-sided fixing code 6 abuts against the top surface of the cross arm 401 and fits with the side of the rectangular limit block 403 on the cross arm 401, and the single-sided top pressure plate 602 of the single-sided fixing code 6 abuts against the top surface of the photovoltaic panel 5, and bolts are inserted into the through holes on the single-sided locking plate 601 and are threadedly connected with the threaded through holes set on the rectangular limit block 403 to complete the locking and fixing.

[0032] The double-sided fixing code 7 includes a double-sided locking plate 701, and a through hole is set in the middle of the double-sided locking plate 701; pressure feet are set on the opposite sides of the double-sided locking plate 701, wherein the two pressure feet are vertically extended from the top surface of the double-sided locking plate 701 and bent at the end to form a double-sided top pressure plate 702; when clamping the opposite ends of two adjacent photovoltaic panels 5, the double-sided locking plate 701 is placed in the joint seam of the two adjacent photovoltaic panels 5, and the two pressure feet extend out of the top of the joint seam, and the two double-sided top pressure plates 702 are respectively against the top surfaces of the two adjacent photovoltaic panels 5, and bolts are inserted into the through holes on the double-sided locking plate 701 and threadedly connected with the threaded through holes set on the rectangular limit block 403 to complete the locking and fixing.

[0033] Anti-slip teeth are arranged on the contact surfaces of the single-sided top pressure plate 601 and the single-sided bottom pressure plate 602 of the single-sided fixing code 6, and the double-sided top pressure plates 702 of the double-sided fixing code 7 to increase the surface friction against the photovoltaic panel 5 and improve the clamping stability.

[0034] The truss body 1 includes a plurality of rods 101 and a connecting hub 102 for connecting the rods 101; the connecting hub 102 is a spherical structure, the top of the connecting hub 102 supports the purlin 2 through a support 11, and screw holes are arranged on the connecting hub 102, and the number of screw holes on the connecting hub 102 can be increased or decreased according to the number of connected rods 101; the rod 101 is a hollow tube structure, one end of the rod 101 is a connecting end and is provided with a through hole connected to the internal tube cavity, a high-strength bolt 8 is arranged inside the rod 101, the high-strength bolt 8 has a bolt cap 801 and a bolt column 802 connected to the bolt cap 801, and the bolt column 802 passes through the through hole to the outside of the rod 101; the bolt column 802 has a threaded section and a light column section, and the threaded section is located at the bolt column 802 is far away from the bolt cap 801, and the light column section is located at the bolt column 802 close to the bolt cap 801, and a limiting groove is arranged on the light column section; when connected, the threaded section of the bolt column 802 of the high-strength bolt 8 is connected with the screw hole on the connecting hub 102, and a sleeve 9 is sleeved on the bolt column 802, one end of the sleeve 9 abuts against the outer surface of the connecting hub 102, and the other end of the sleeve 9 abuts against the end face of the connecting end of the connecting rod 101; one side of the sleeve 9 is provided with a threaded through hole which radially penetrates the inner cavity of the sleeve 9, and the threaded through hole is threadedly connected with a screw 10 which can be extended into the interior of the sleeve 9 and limitedly matched with the limiting groove on the bolt column 802 of the high-strength bolt 8; the truss main body 1 structure can be fastened by bolt connection and screws 10, which can reduce welding and improve assembly efficiency.

[0035] The above-mentioned embodiments of the utility model are not intended to limit the protection scope of the utility model, and the implementation methods of the utility model are not limited to these. All other various forms of modifications, replacements or changes made to the above-mentioned structure of the utility model based on the above-mentioned contents of the utility model, in accordance with the common technical knowledge and customary means in the field, without departing from the above-mentioned basic technical ideas of the utility model, should fall within the protection scope of the utility model.

Claims

1. A large-span space truss structure for a photovoltaic carport, comprising a truss body, a plurality of purlins arranged on the truss body, a plurality of support beams arranged on the purlins, and a locking piece capable of fixing a photovoltaic panel arranged on the support beams; characterized in that: The support beam includes two symmetrically arranged top support parts, a cross arm connecting the top ends of the two top support parts, and a bottom support part connecting the bottom ends of the two top support parts and abutting against the purlin when the top support parts are under pressure; a limiting part is provided in the middle of the cross arm for limiting the ends of two adjacent photovoltaic panels on the cross arm to form a splicing seam, and the locking piece is connected to the limiting part through the splicing seam to fix the photovoltaic panels.

2. The large-span space truss structure for a photovoltaic carport according to claim 1 is characterized in that: The support beam is a long sheet metal with an M-shaped cross-section, including two vertically arranged wing plates, the bottom ends of the two wing plates form straight flanges, and the flanges are fixed to the top of the purlin; the top ends of the two wing plates form a straight top plate as the top support part, and the ends of the two top plates are bent and extended toward the bottom of the support beam to form an inclined inner plate; the bottom ends of the two inner plates are bent and connected to form a straight bottom plate as the bottom support part, and a gap is formed between the bottom plate and the top surface of the purlin; the two wing plates and the bottom plate form a V-shaped water collecting trough.

3. The large-span space truss structure for a photovoltaic carport according to claim 2 is characterized in that: The cross arm is a sheet metal part with an inverted U-shaped cross section, including a cross arm piece overlapped on the two top support parts of the support beam, and an ear piece formed by bending the two ends of the cross arm piece, and the ear piece is fixedly connected to the top end of the wing plate piece of the support beam.

4. The large-span space truss structure for a photovoltaic carport according to claim 3 is characterized in that: The cross arm piece has a bottom surface formed with a limiting rib near the end, and the limiting rib, the end of the cross arm piece and the ear piece form a limiting groove that can cooperate with the top support portion of the support beam.

5. The large-span space truss structure for a photovoltaic carport according to claim 3 is characterized in that: A rectangular limit block is formed in the middle of the cross arm as the limit portion, and the width of the rectangular limit block corresponds to the width of the photovoltaic panel joint.

6. The large-span space truss structure for a photovoltaic carport according to claim 5, characterized in that: The locking piece includes a single-side fixing code and a double-side fixing code. The single-side fixing code is used to fix the outer end of the photovoltaic panel near the edge of the truss body, and the double-side fixing code is used to fix the opposite ends of two adjacent photovoltaic panels.

7. The large-span space truss structure for a photovoltaic carport according to claim 6, characterized in that: The single-sided fixing code includes a single-sided locking plate, and pressure feet are arranged on opposite sides of the single-sided locking plate, one of the pressure feet vertically extends out of the top surface of the single-sided locking plate and is bent at the end to form a single-sided top pressure plate, and the other pressure foot vertically extends out of the bottom surface of the single-sided locking plate and is bent at the end to form a single-sided bottom pressure plate; when the outer end of the photovoltaic panel is clamped near the edge of the truss body, the single-sided bottom pressure plate of the single-sided fixing code abuts against the top surface of the cross arm and fits with the side of the rectangular limit block on the cross arm, the single-sided top pressure plate of the single-sided fixing code abuts against the top surface of the photovoltaic panel, and the single-sided locking plate is threadedly connected to the threaded through hole arranged on the rectangular limit block by bolts.

8. The large-span space truss structure for a photovoltaic carport according to claim 6, characterized in that: The double-sided fixing code includes a double-sided locking plate, and pressure feet are arranged on the opposite sides of the double-sided locking plate, wherein the two pressure feet both extend vertically out of the top surface of the double-sided locking plate and are bent at the ends to form a double-sided top pressure plate; when clamping the opposite ends of two adjacent photovoltaic panels, the double-sided locking plate is placed in the splicing seam of the two adjacent photovoltaic panels, and is threadedly connected to the threaded through holes arranged on the rectangular limit block through bolts, and the two pressure feet extend out of the top end of the splicing seam, and make the two double-sided top pressure plates respectively abut the top surfaces of the two adjacent photovoltaic panels.

9. The large-span space truss structure for a photovoltaic carport according to any one of claims 1 to 8, characterized in that: The truss body includes a plurality of rods and a connecting hub for splicing the rods; the top of the connecting hub supports the purlin through a bracket, and a screw hole is provided on the connecting hub; a through hole connected to the internal tubular cavity is opened at the connecting end of the rod, a high-strength bolt is arranged inside the rod, and a bolt column of the high-strength bolt passes through the through hole to the outside of the rod; a threaded section and a light column section are provided on the bolt column, the threaded section is located at a part of the bolt column away from the bolt cap, the light column section is located at a part of the bolt column close to the bolt cap, and a limiting groove is provided on the light column section; when connected, the bolt column threaded section of the high-strength bolt is connected with the screw hole on the connecting hub, a sleeve is sleeved on the bolt column, one end of the sleeve abuts the outer surface of the connecting hub, and the other end of the sleeve abuts the end face of the connecting end of the connecting rod; a threaded through hole is provided on one side of the sleeve, which radially penetrates the inner cavity of the sleeve, and a screw that can be inserted into the interior of the sleeve and limitedly matched with the limiting groove on the bolt column of the high-strength bolt is threadedly connected in the threaded through hole.

10. The large-span space truss structure for a photovoltaic carport according to claim 9, characterized in that: A plurality of the rods are connected to each other through the connection hub to form the truss body with a spatial triangular structure.

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