Roof system of photovoltaic greenhouse with stable stress and excellent waterproof performance

Abstract

The invention relates to a roof system of a photovoltaic greenhouse. The roof system is stable in stress and excellent in waterproof performance. The water guide roof ridge comprises a supporting pipe, a first water guide plate, a second water guide plate, a first lap joint plate and a second lap joint plate, a first inserting groove is formed between the first water guide plate and the first lap joint plate, and a second inserting groove is formed between the second water guide plate and the second lap joint plate; the main tank is composed of a square pipe, a water receiving tank, a first bearing plate and a second bearing plate; a tripod assembly; the front side of the photovoltaic panel is inserted into the insertion groove; the waterproof pressing strip covers and is fixed at a gap part between the two photovoltaic panels; and two main grooves distributed towards the two sides are vertically formed in the butt joint part of any two water guide ridges. By means of the technical scheme, good structural stability and excellent waterproofness are both considered, and some structures which are relatively prone to aging and rusting can be conveniently replaced in the later period.

Description

Technical Field

[0001] This invention relates to a roof structure for a greenhouse, and more particularly to a roof system for a photovoltaic greenhouse that is stable under load and has excellent waterproof performance. Background Technology

[0002] A photovoltaic greenhouse (also known as a photovoltaic agricultural greenhouse) is a new type of facility that combines a solar photovoltaic power generation system with an agricultural greenhouse. By installing photovoltaic modules on the top or sides of the greenhouse, it achieves integrated operation of power generation and agricultural production. The photovoltaic greenhouse is supported by a steel frame, with the roof covered by solar photovoltaic panels or photovoltaic glass, balancing light transmission and power generation needs. The photovoltaic panel layout is professionally designed to ensure crops receive the necessary sunlight while maximizing power generation efficiency. Photovoltaic greenhouses are suitable for growing high-value-added crops such as vegetables, edible fungi, and medicinal herbs; they can also be extended to aquaculture, seedling cultivation, and scientific research experiments, achieving agricultural-solar complementarity.

[0003] Using photovoltaic greenhouses can significantly reduce electricity costs during operation, and even allow for the sale of excess electricity generated. Simultaneously, photovoltaic panels can regulate light intensity, lower temperatures by 3-5°C in summer to reduce pests and diseases, and provide insulation in winter to extend the crop growth cycle. Photovoltaic greenhouses fully covered with photovoltaic panels are particularly suitable for the cultivation of edible fungi.

[0004] However, because photovoltaic greenhouses are assembled from multiple photovoltaic panels and metal structures, their waterproofing is far more challenging than that of conventional film-film greenhouses. Therefore, ensuring their waterproof performance has become a critical challenge for the photovoltaic greenhouse manufacturing industry. Furthermore, photovoltaic greenhouses require higher structural stability and easy replacement of components for future maintenance. Summary of the Invention

[0005] This invention provides a roof system for photovoltaic greenhouses that is stable under stress and has excellent waterproof performance; it solves the problem in the prior art that photovoltaic greenhouses need to simultaneously meet the requirements of structural stability and water leakage prevention.

[0006] The above-mentioned technical problems of the present invention are mainly solved by the following technical solution: a roof system for a photovoltaic greenhouse with stable stress and excellent waterproof performance, comprising:

[0007] The water-guiding ridge is composed of a support pipe, a first water guide plate, a second water guide plate, a first overlapping plate, and a second overlapping plate. The first water guide plate and the second water guide plate are located on the upper side of the support pipe. The two water guide plates are connected to each other and extend obliquely downward to both sides. The first overlapping plate and the second overlapping plate are fixed on both sides of the length direction of the support pipe and are located below the two water guide plates. A first insertion groove is formed between the first water guide plate and the first overlapping plate, and a second insertion groove is formed between the second water guide plate and the second overlapping plate.

[0008] The main channel is composed of a square tube, a water receiving channel, a first support plate, and a second support plate. The water receiving channel is located on the upper side of the square tube. The first support plate is provided with a first limiting plate, and the second support plate is provided with a second limiting plate. Support plates are connected between the two support plates and the water receiving channel, dividing the water receiving channel into two outer water guiding channels and one inner water guiding channel. Both support plates are located inside the water receiving channel. The main channel is inclined as a whole, and its upper end is fixed to the lower side of the water guiding ridge.

[0009] The tripod assembly consists of two main channels, a crossbeam, a first corner connecting piece, and a second corner connecting piece. The two main channels are perpendicularly arranged at the joint of any two water-guiding ridges and distributed on both sides of the water-guiding ridges. The first corner connecting piece is fixedly connected to the upper ends of the two main channels and the two are fixed in abutting state. The second corner connecting piece is fixedly connected to the end of the crossbeam and to any one of the main channels.

[0010] A photovoltaic panel is fixed in the area between two adjacent parallel main channels and the water-guiding ridge. The front side of the photovoltaic panel is inserted into the first or second insertion slot and overlaps on the corresponding overlapping plate. The rear side of the photovoltaic panel is overlapped and fixed on the first and second support plates.

[0011] A waterproof strip is located on the upper side of the main groove and covers and is fixed to the gap between the two photovoltaic panels. The upper end of the waterproof strip is inserted below the first or second water guide plate on the two water guide ridges.

[0012] Both ends of any of the water-guiding ridges overlap the tops of two adjacent triangular frame components, and the ends of the two overlapping plates on the water-guiding ridges overlap and are fixed to the upper ends of the two supporting plates on the main channel.

[0013] Regarding leak prevention, in this invention, the first and second overlapping plates on the water-guiding ridge support the photovoltaic panel. The upper edge of the photovoltaic panel can be completely inserted into the first and second insertion slots, so that the first and second water-guiding plates can partially cover the upper edge of the photovoltaic panel. Rainwater sliding down from the two water-guiding plates will roll down along the upper surface of the photovoltaic panel, preventing rainwater from seeping back into the two insertion slots. The front end of the waterproof strip is pressed under the water-guiding plate. The waterproof strip and the photovoltaic panel can be fixed with adhesive or screws. Firstly, the waterproof strip covers the top of the photovoltaic panel, which can prevent rainwater from seeping in from the sides of the photovoltaic panel. The main channel and the water-guiding ridge are for greenhouse structures. The main structural components of the roof work together to fix the photovoltaic panels. The two support plates on the main channel and the two overlapping plates on the water-guiding ridge are used to connect and fix the photovoltaic panels. Although the waterproof strip and water-guiding plate can provide good waterproofing for the edges of the photovoltaic panels, there is still a probability of water seepage in harsh environments, especially on the sides of the photovoltaic panels. When water seeps in this area, the water will eventually be caught by the water collection channel and guided downwards. At the same time, there is a gap at the joint of any two of the water-guiding ridges, and rainwater will fall through the gap. However, below the gap is the part where the two main channels abut against each other, and the rainwater will directly enter the interior of the water collection channel and the square tube, and flow downwards under its guidance.

[0014] In terms of structural stability, this invention adopts a bottom-up overlapping method, with the main weight borne by several tripod components. Therefore, the tripod components are the first to be installed during the installation process, and they are also the components that do not need to be replaced much later. Then, the water-guiding ridge is installed and fixed on the top of the tripod components, and then the photovoltaic panels are fixed on the water-guiding ridge and the main channel. Finally, the waterproof pressure strip is installed and fixed.

[0015] Furthermore, a sliding seat is fitted onto the square tube, and a gutter bracket is connected to the sliding seat. A gutter positioning groove is formed on the upper side of the gutter bracket, and two mounting plates are provided at the bottom of the gutter bracket. A rigid rod that provides support and positioning is fixedly connected between the two mounting plates. This invention uses a gutter bracket to fix the gutter in place. The gutter is fixed within the gutter positioning groove, and the position of the gutter is adjusted by changing the position of the sliding seat, ensuring that the gutter can fully collect rainwater from the photovoltaic panels and the main gutter. The sliding seat is typically fixed to the square tube with screws. As a primary water-guiding component, the gutter is relatively prone to aging and corrosion. This invention uses a gutter bracket to fix the gutter, making the fixing method simple and quick, facilitating future replacement.

[0016] Furthermore, the support tube has vertical ribs inside, which divide the inner cavity of the support tube into a first cavity and a second cavity. As a key load-bearing structure, the water-guiding ridge also requires a certain level of structural strength. This invention, by incorporating ribs inside the support tube, can significantly improve its resistance to longitudinal bending and torsion. The tubular structure can also significantly reduce its weight and production costs.

[0017] Furthermore, the joint of any two of the water-guiding ridges is provided with a joint component, which consists of a first bidirectional plug, a second bidirectional plug, a connecting piece, and a water-blocking plate. The connecting piece is used to connect and fix the two bidirectional plugs and the water-blocking plate. The two bidirectional plugs on the joint component can be simultaneously inserted into the support pipes on the two water-guiding ridges, and the ends of the two support pipes simultaneously abut against the two sides of the connecting piece, so that the water-blocking plate is in contact with the upper surfaces of the first and second water-guiding plates. At the joint of the two water-guiding ridges, the joint gap is prone to leakage. Therefore, this invention uses a joint component to connect the two water-guiding ridges, two bidirectional plugs to insert into the first and second cavities, and the water-blocking plate to cover the joint of the two water-guiding ridges, which can effectively prevent water seepage at this point.

[0018] Therefore, compared with the prior art, the present invention has the following characteristics: 1. It is composed of a water-guiding ridge, a main channel, a waterproof strip, and a photovoltaic panel. The water-guiding ridge and the waterproof strip can effectively prevent leakage at the upper edge and sides of the photovoltaic panel, guiding rainwater to slide down from the lower edge of the photovoltaic panel. At the same time, a main channel with a drainage effect is set in the parts prone to leakage, so that the present invention has a better physical waterproof effect; 2. The present invention adopts a bottom-up overlapping method, and the main weight is borne by the tripod assembly, so it has good structural stability and facilitates the replacement of parts later; 3. The present invention uses a gutter bracket to fix the gutter, so the gutter fixing method is very simple and quick, and it is easy to replace later. Attached Figure Description

[0019] Appendix Figure 1 This is a side view of the present invention;

[0020] Appendix Figure 2 It is attached Figure 1 Enlarged view of part A;

[0021] Appendix Figure 3 It is attached Figure 1 Enlarged view of part B;

[0022] Appendix Figure 4 This is a perspective view of the present invention;

[0023] Appendix Figure 5 It is attached Figure 4 Enlarged view of part C;

[0024] Appendix Figure 6 This is a partial assembly drawing of the present invention;

[0025] Appendix Figure 7 It is an assembly drawing of the two water-guiding ridges and the connecting components;

[0026] Appendix Figure 8 This is a structural diagram of the docking components;

[0027] Appendix Figure 9 This is the installation structure diagram of the first corner connecting piece;

[0028] Appendix Figure 10 This is the installation structure diagram of the second corner connecting piece. Detailed Implementation

[0029] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0030] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] Example 1: See Figure 1 , Figure 2 and Figure 4 A roofing system for a photovoltaic greenhouse that is stable under load and has excellent waterproof performance includes:

[0032] The water-guiding ridge 100 is composed of a support pipe 110, a first water-guiding plate 120, a second water-guiding plate 130, a first overlapping plate 140, and a second overlapping plate 150. The first water-guiding plate and the second water-guiding plate are located on the upper side of the support pipe. The two water-guiding plates are connected to each other and extend obliquely downward to both sides. The first overlapping plate and the second overlapping plate are fixed on both sides of the length direction of the support pipe and are located below the two water-guiding plates. A first insertion groove 160 is formed between the first water-guiding plate and the first overlapping plate, and a second insertion groove 170 is formed between the second water-guiding plate and the second overlapping plate.

[0033] The main channel 200 is composed of a square tube 210, a water receiving channel 220, a first support plate 230 and a second support plate 240. The water receiving channel is located on the upper side of the square tube. The first support plate is provided with a first limiting plate 250 and the second support plate is provided with a second limiting plate 260. Support plates 270 are connected between the two support plates and the water receiving channel, dividing the water receiving channel into two outer water guiding channels 221 and one inner water guiding channel 222. Both support plates are located inside the water receiving channel. The main channel is inclined as a whole, and its upper end is fixed to the lower side of the water guiding ridge.

[0034] Tripod assembly 500 consists of two main slots, a crossbeam 510, a first corner connecting piece 520, and a second corner connecting piece 530 (see [link]). Figure 1 and Figure 9 Two main channels are vertically installed at the joint of any two water-guiding ridges and distributed on both sides of the water-guiding ridges. The first corner connecting piece is fixedly connected to the upper end of the two main channels and fixes them in abutting state. The second corner connecting piece is fixedly connected to the end of the crossbeam and any one of the main channels.

[0035] The photovoltaic panel 300 consists of a photovoltaic panel assembly 310 and two supports 320 fixed to the bottom of the front and rear sides of the photovoltaic panel assembly. The photovoltaic panel is fixed in the area between two adjacent parallel main channels and the water-guiding ridge. The front side of the photovoltaic panel is inserted into the first or second insertion slot and overlaps on the corresponding overlapping plate. The rear side of the photovoltaic panel overlaps and is fixed on the first and second support plates. The overlapping parts are generally fixed with screws or glass glue.

[0036] A 400 waterproof strip is located on the upper side of the main channel and covers the gap between the two photovoltaic panels. The upper end of the waterproof strip is inserted below the first or second water guide plate on both water guide ridges (see...). Figure 5 The bottom of the waterproof strip is equipped with two limiting baffles 410 (see...). Figure 6 );

[0037] At the joint of any two water-guiding ridges, there are two main channels that are vertically distributed to both sides. The ends of the square tubes of the two main channels abut against each other, and the ends of any overlapping plates are overlapped and fixed to the first or second support plate.

[0038] The two ends of any water-guiding ridge overlap the top of two adjacent triangular frame components. The ends of the two overlapping plates on the water-guiding ridge overlap and are fixed to the upper ends of the two supporting plates on the main channel. The overlapping parts need to be fixed with glass glue or screws.

[0039] Regarding leak prevention, in this embodiment, the first and second overlapping plates on the water-guiding ridge support the photovoltaic panels. The upper edge of the photovoltaic panels can be completely inserted into the first and second insertion slots, so that the first and second water-guiding plates can partially cover the upper edge of the photovoltaic panels. Rainwater sliding down from the two water-guiding plates will roll down along the upper surface of the photovoltaic panels, preventing rainwater from seeping back into the two insertion slots. The front end of the waterproof strip is pressed under the water-guiding plates. The waterproof strip and the photovoltaic panels can be fixed with adhesive or screws. Firstly, the waterproof strip covers the top of the photovoltaic panels, preventing rainwater from seeping in from the sides. The main channel and the water-guiding ridge form a greenhouse. The main structural components of the roof work together to fix the photovoltaic panels. The two support plates on the main channel and the two overlapping plates on the water-guiding ridge are used to connect and fix the photovoltaic panels. Although the waterproof strips and water-guiding plates can provide good waterproofing for the edges of the photovoltaic panels, there is still a probability of water seepage in harsh environments, especially on the sides of the photovoltaic panels. When water seeps in this area, the water will eventually be caught by the water collection channel and guided downwards. At the same time, there is a gap at the joint of any two water-guiding ridges, and rainwater will fall through the gap. However, below this gap is the part where the two main channels abut against each other, and the rainwater will directly enter the interior of the water collection channel and square tube, and flow downwards under its guidance.

[0040] In terms of structural stability, this invention adopts a bottom-up overlapping method, with the main weight borne by several tripod components. Therefore, the tripod components are the first to be installed during the installation process, and they are also the components that do not need to be replaced much later. Then, the water-guiding ridge is installed and fixed on the top of the tripod components, and then the photovoltaic panels are fixed on the water-guiding ridge and the main channel. Finally, the waterproof pressure strip is installed and fixed.

[0041] See Figure 1 and Figure 3 A sliding seat 280 is fitted onto the square tube, and a gutter bracket 290 is connected to the sliding seat. A gutter positioning groove 291 is formed on the upper side of the gutter bracket, and two mounting pieces 292 are provided at the bottom of the gutter bracket. A rigid rod that provides support and positioning is fixedly connected between the two mounting pieces. In this embodiment, the gutter is fixedly installed by setting a gutter bracket. The gutter is fixed in the gutter positioning groove, and the position of the gutter is adjusted by adjusting the position of the sliding seat, so that the gutter can completely catch rainwater from the photovoltaic panels and the main gutter. The sliding seat is usually fixed to the square tube with screws.

[0042] See Figure 6 and Figure 3The square tube has sliding grooves 211 on both sides, and the bottom of the water receiving trough and the sides of the square tube have clamps 223. The sliding seat has two side plates 281. The inner surface of the side plates has a sliding rail 282 that slides and engages with the sliding groove. The upper end of the side plate is restricted to the inside of the clamp. The bottom of the sliding seat has a slot 283. The gutter bracket has a plug plate 293 that is inserted and fixed into the slot.

[0043] See Figure 2 and Figure 5 The outer edge of the first overlapping plate is provided with an upwardly protruding first baffle 141, and the outer edge of the second overlapping plate is provided with an upwardly protruding second baffle 151. The two baffles can limit the brackets on the photovoltaic panel, thereby preventing the photovoltaic panel from detaching from the embodiment; and even if some rainwater seeps back into the two insertion grooves, this water will be guided to both ends of the water-guiding ridge by the obstruction of the two baffles, and finally flow into the water collection groove.

[0044] See Figure 2 The support tube has vertical ribs 111 inside, which divide the inner cavity of the support tube into a first cavity 112 and a second cavity 113. As a key load-bearing structure, the water-guiding ridge also has certain requirements for structural strength. In this embodiment, by setting ribs inside the support tube, its resistance to longitudinal bending and torsion can be greatly improved. The tubular structure can significantly reduce its self-weight and reduce its production cost.

[0045] See Figure 7 and Figure 8 The joint of any two water-guiding ridges is further provided with a joint component 180, which consists of a first bidirectional plug 181, a second bidirectional plug 182, a connecting piece 183, and a water-blocking piece 184. The connecting piece is used to connect and fix the two bidirectional plugs and the water-blocking piece. The two bidirectional plugs on the joint component can be simultaneously inserted into the support pipes on the two water-guiding ridges, and the ends of the two support pipes simultaneously abut against the two sides of the connecting piece, so that the water-blocking piece is in contact with the upper surfaces of the first water-guiding plate and the second water-guiding plate. At the joint of the two water-guiding ridges, the joint gap is prone to leakage. Therefore, this embodiment uses a joint component to connect the two water-guiding ridges. The two bidirectional plugs are used to insert into the first cavity and the second cavity, and the water-blocking piece is used to cover the joint of the two water-guiding ridges, which can effectively prevent water seepage at this part.

[0046] See Figure 9 and Figure 10 Two first corner connecting pieces and two second corner connecting pieces are provided and clamped and fixed on both sides of the main groove. The upper edge of the first corner connecting piece is inserted into the inner side of the clamping plate. Several mounting holes 540 are provided on the first corner connecting piece and the second corner connecting piece.

[0047] It will be apparent to those skilled in the art that the present invention can be modified in various ways, and such modifications are not considered to depart from the scope of the invention. All such modifications that are obvious to those skilled in the art are included within the scope of the claims.

Claims

1. A roofing system for a photovoltaic greenhouse that is stable under load and has excellent waterproof performance, characterized in that, include: The water-guiding ridge is composed of a support pipe, a first water guide plate, a second water guide plate, a first overlapping plate, and a second overlapping plate. The first water guide plate and the second water guide plate are located on the upper side of the support pipe. The two water guide plates are connected to each other and extend obliquely downward to both sides. The first overlapping plate and the second overlapping plate are fixed on both sides of the length direction of the support pipe and are located below the two water guide plates. A first insertion groove is formed between the first water guide plate and the first overlapping plate, and a second insertion groove is formed between the second water guide plate and the second overlapping plate. The main channel is composed of a square tube, a water receiving channel, a first support plate, and a second support plate. The water receiving channel is located on the upper side of the square tube. The first support plate is provided with a first limiting plate, and the second support plate is provided with a second limiting plate. Support plates are connected between the two support plates and the water receiving channel, dividing the water receiving channel into two outer water guiding channels and one inner water guiding channel. Both support plates are located inside the water receiving channel. The main channel is inclined as a whole, and its upper end is fixed to the lower side of the water guiding ridge. The tripod assembly consists of two main channels, a crossbeam, a first corner connecting piece, and a second corner connecting piece. The two main channels are perpendicularly arranged at the joint of any two water-guiding ridges and distributed on both sides of the water-guiding ridges. The first corner connecting piece is fixedly connected to the upper ends of the two main channels and the two are fixed in abutting state. The second corner connecting piece is fixedly connected to the end of the crossbeam and to any one of the main channels. A photovoltaic panel is fixed in the area between two adjacent parallel main channels and the water-guiding ridge. The front side of the photovoltaic panel is inserted into the first or second insertion slot and overlaps on the corresponding overlapping plate. The rear side of the photovoltaic panel is overlapped and fixed on the first and second support plates. A waterproof strip is located on the upper side of the main groove and covers and is fixed to the gap between the two photovoltaic panels. The upper end of the waterproof strip is inserted below the first or second water guide plate on the two water guide ridges. Both ends of any of the water-guiding ridges overlap the tops of two adjacent triangular frame components, and the ends of the two overlapping plates on the water-guiding ridges overlap and are fixed to the upper ends of the two supporting plates on the main channel.

2. The roof system of the photovoltaic greenhouse with stable stress and excellent waterproof performance according to claim 1, characterized in that: The bottom of the waterproof strip is provided with two limiting baffles.

3. The roof system of the photovoltaic greenhouse with stable stress and excellent waterproof performance according to claim 1, characterized in that: A sliding seat is fitted onto the square tube, and a gutter bracket is connected to the sliding seat. A gutter positioning groove is formed on the upper side of the gutter bracket.

4. The roof system of the photovoltaic greenhouse with stable stress and excellent waterproof performance according to claim 3, characterized in that: The square tube has sliding grooves on both sides, and a clamping plate is provided at the bottom of the water receiving trough and on both sides of the square tube. The sliding seat has two side plates, and the inner surface of the side plates is provided with a slide rail that slides and engages with the sliding groove. The upper end of the side plates is restricted to the inner side of the clamping plate. The bottom of the sliding seat has a slot, and the gutter bracket has a plug plate that is inserted and fixed into the slot.

5. The roof system of the photovoltaic greenhouse with stable stress and excellent waterproof performance according to claim 1, characterized in that: The outer edge of the first overlapping plate is provided with an upwardly protruding first baffle, and the outer edge of the second overlapping plate is provided with an upwardly protruding second baffle.

6. The roof system of the photovoltaic greenhouse with stable stress and excellent waterproof performance according to claim 1, characterized in that: The support tube has vertical ribs inside, which divide the inner cavity of the support tube into a first cavity and a second cavity.

7. The roof system of the photovoltaic greenhouse with stable stress and excellent waterproof performance according to claim 6, characterized in that: The joint of any two of the water-guiding ridges is also provided with a joint component. The joint component consists of a first bidirectional plug, a second bidirectional plug, a connecting piece, and a water-blocking piece. The connecting piece is used to connect and fix the two bidirectional plugs and the water-blocking piece. The two bidirectional plugs on the joint component can be inserted into the support pipes on the two water-guiding ridges at the same time. The ends of the two support pipes abut against the two sides of the connecting piece at the same time, so that the water-blocking piece is in contact with the upper surface of the first water guide plate and the second water guide plate.

8. The roof system of the photovoltaic greenhouse with stable stress and excellent waterproof performance according to claim 4, characterized in that: Two first corner connecting pieces and two second corner connecting pieces are provided and clamped and fixed on both sides of the main groove. The upper edge of the first corner connecting piece is inserted into the inner side of the clamping plate. The first corner connecting piece and the second corner connecting piece are provided with several mounting holes.

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