Water chute, water chute mounting structure and photovoltaic roof

Abstract

The utility model discloses a gutter, gutter mounting structure and photovoltaic roof, gutter comprises a first water guide portion, two second water guide portions arranged on the two sides of the first water guide portion and a connecting portion connecting the first water guide portion and the second water guide portions, the first water guide portion is provided with a first open slot, the second water guide portions are provided with second open slots, and the first open slot and the second open slot are connected through the connecting portion. Openings of the first open slot and the second open slot are upward; each connecting part comprises a limiting part, the limiting part comprises a first connecting wall and a second connecting wall, the first connecting wall is connected with the first opening groove and located at the opening position of the first opening groove, and the second connecting wall is located on the first connecting wall and at least partially attached to the first connecting wall. The water guide groove, the water guide groove mounting structure and the photovoltaic roof can be suitable for mounting in various scenes at the same time, and the mounting stability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic building integration, in particular to a water guide trough, a water guide trough installation structure and a photovoltaic roof. Background Art

[0002] At present, photovoltaic building integration is being used more and more widely. This technology can convert light energy into electrical energy, which is beneficial to energy conservation and emission reduction, and brings solar power generation into the lives of ordinary residents.

[0003] In actual applications, photovoltaic modules need to be fixed on the roof and water guide grooves need to be installed. Due to weather changes, photovoltaic modules will experience thermal expansion and contraction, affecting the overall reliability of fixation. In windy weather, the photovoltaic modules will also vibrate, and the fixing devices will easily cause the screws to loosen and even damage the photovoltaic modules.

[0004] Therefore, it is necessary to provide a new water guide trough, a water guide trough installation structure and a photovoltaic roof to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a water guide trough, a water guide trough mounting structure and a photovoltaic roof; the water guide trough has a simple structure and effectively improves the overall stability.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A water guide groove comprises a first water guide portion, two second water guide portions arranged on both sides of the first water guide portion, and two connecting portions connecting the first water guide portion and the second water guide portion, wherein the first water guide portion is provided with a first opening groove, the second water guide portion is provided with a second opening groove, and the openings of the first opening groove and the second opening groove are both upward;

[0008] Each of the connecting parts includes a limiting part, which is connected to the first water guiding part and extends toward the first opening groove. The limiting part includes a first connecting wall and a second connecting wall connected to each other. The first connecting wall is connected to the first water guiding part and is located at the opening position of the first opening groove. The second connecting wall is located on the first connecting wall and is at least partially in contact with the first connecting wall.

[0009] As a further improved technical solution of the utility model, the connecting part also includes a third connecting wall, the third connecting wall is connected to the second water guiding part, the height position of the third connecting wall is higher than the second connecting wall, the water guiding groove also includes a buffer pad, the buffer pad is arranged on the connecting part and at least partially arranged on the second connecting wall, and the upper surface of the buffer pad is arranged as a tooth-shaped structural surface.

[0010] As a further improved technical solution of the utility model, the first water guiding portion includes a first bottom wall and two first side walls arranged on both sides of the first bottom wall, the first bottom wall and the two first side walls enclose the first opening groove, the second water guiding portion includes a second bottom wall and a second side wall and a third side wall arranged on both sides of the second bottom wall, the second bottom wall, the second side wall and the third side wall enclose the second opening groove, wherein the second side wall is closer to the first opening groove than the third side wall;

[0011] The distance between the two first side walls is greater than half the distance between the two second side walls, and the first bottom wall is located at a higher height than the second bottom wall.

[0012] As a further improved technical solution of the present utility model, the first water guiding portion further includes an inclined side wall, and the inclined side wall connects the first bottom wall and the first side wall.

[0013] As a further improved technical solution of the utility model, the water guide groove is formed by integral bending.

[0014] In order to achieve the above purpose, the utility model also adopts the following technical solutions:

[0015] A water guide trough installation structure comprises a water guide trough, a mounting block, a fixing assembly and a photovoltaic assembly as described in any one of the above items, wherein the mounting block comprises a supporting portion and a hook portion arranged at one end of the supporting portion, the water guide trough comprises an extending portion, the extending portion is arranged at an end of the second water guide portion away from the first water guide portion, the hook portion is hooked with the extending portion, the fixing assembly comprises a pressing block, a sliding block and a locking member, the photovoltaic assembly is installed on the water guide trough through the fixing assembly, the photovoltaic assembly is at least partially located between the pressing block and the sliding block, and the locking member locks the pressing block and the sliding block together.

[0016] As a further improved technical solution of the utility model, the hook portion is located on a side of the support portion close to the second opening groove;

[0017] The pressing block comprises a concave portion and two pressing portions arranged at upper ends of both sides of the concave portion, wherein the pressing portions abut downward against the upper surface of the photovoltaic module;

[0018] The slider includes a base and a protruding portion, wherein the protruding portion protrudes outwardly from the lower ends of both sides of the base and is located in the first opening groove, and the protruding portion abuts against the limiting portion upward;

[0019] The lower concave portion is provided with a through hole, the base portion is provided with a slot hole, and the locking member penetrates the through hole and the slot hole to lock and connect the pressing block and the sliding block.

[0020] In order to achieve the above purpose, the utility model also adopts the following technical solutions:

[0021] A photovoltaic roof comprises a purlin and a water channel mounting structure as described in any one of the above items, wherein the water channel is fixed on the purlin, and the mounting block comprises a fixing portion, which is located on a side of the support portion away from the second water channel portion, and the fixing portion is fixedly connected to the purlin via a fastener.

[0022] In order to achieve the above purpose, the utility model also adopts the following technical solutions:

[0023] A photovoltaic roof comprises purlins, color steel tiles and a water guide trough mounting structure as described in any one of the above items, wherein the color steel tiles are fixed on the purlins, a raised seat is provided on the color steel tiles, the water guide trough is fixedly connected to the raised seat via a mounting block, the raised seat comprises a support plate and a first fixed plate and a second fixed plate arranged at both ends of the support plate, the mounting block also comprises a fixing portion, the fixing portion is located on a side of the support portion away from the second water guide portion, the fixing portion is connected to the first fixed plate via a fastener, and the second fixed plate is connected to the color steel tile.

[0024] As a further improved technical solution of the utility model, the color steel tile has a protrusion, the raised seat is correspondingly provided with a hollow portion, and the height of the support plate is greater than the height of the protrusion.

[0025] Compared with the prior art, the utility model of the water guide trough, water guide trough mounting structure and photovoltaic roof has the following beneficial effects: a water guide trough with a simple structure is designed, and the raw materials can be produced by a simple bending process, and the water guide trough includes a first opening groove, a second opening groove and a connecting part, and the connecting part is provided with a double-layer bending structure to strengthen the strength of the water guide trough; a buffer pad is provided between the photovoltaic component and the water guide trough to enhance the stability of the component and play a role in anti-skid and shock absorption; the photovoltaic component is installed on the water guide trough through a fixing component, and the fixing component includes a pressing block and a slider, the pressing block presses the photovoltaic component downward, and the slider presses the photovoltaic component upward, and the slider is limited in the first opening groove, so as to enhance the firmness of the fixing between the photovoltaic component and the water guide trough and reduce the risk of loosening of the photovoltaic component. The water guide trough, water guide trough mounting structure and photovoltaic roof have high installation stability, good water guiding effect and low production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the cross-sectional structure of a water guide trough according to a specific embodiment of the utility model;

[0027] Figure 2 A schematic diagram of the three-dimensional structure of a water guide trough according to a specific embodiment of the utility model;

[0028] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of the A area in the middle;

[0029] Figure 4 This is a schematic diagram of the assembly of a photovoltaic module and a water channel according to a specific embodiment of the utility model;

[0030] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of the middle B area;

[0031] Figure 6 It is an exploded schematic diagram of a fixing assembly of a specific embodiment of the utility model;

[0032] Figure 7 This is a schematic structural diagram of a photovoltaic roof according to a specific embodiment of the utility model;

[0033] Figure 8 for Figure 7 Schematic diagram of the enlarged structure of the middle C area;

[0034] Fig. 9 for Figure 7 A schematic diagram of the main view;

[0035] Fig.10 for Fig. 9 Schematic diagram of the enlarged structure of the D area in the middle. DETAILED DESCRIPTION

[0036] The exemplary embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. If there are several embodiments, the features of these embodiments can be combined with each other without conflict. When the description refers to the drawings, unless otherwise specified, the same numbers in different drawings represent the same or similar elements. The contents described in the following exemplary embodiments do not represent all embodiments consistent with the present invention; on the contrary, they are merely examples of devices, products and / or methods that are consistent with some aspects of the present invention and are recorded in the claims of the present invention.

[0037] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the scope of protection of the present invention. The singular forms "a", "said" or "the" used in the specification and claims of the present invention are also intended to include plural forms, unless the context clearly indicates other meanings.

[0038] It should be understood that the words used in the specification and claims of the present invention, such as "first", "second" and similar words, do not indicate any order, quantity or importance, but are only used to distinguish the names of features. Similarly, words such as "one" or "an" do not indicate a quantitative limitation, but indicate the existence of at least one. Unless otherwise specified, words such as "front", "rear", "upper", "lower" and similar words appearing in the present invention are only for the convenience of description and are not limited to a specific position or a spatial orientation. Words such as "include" or "comprise" are an open-ended expression, meaning that the elements appearing before "include" or "comprise" include the elements appearing after "include" or "comprise" and their equivalents, which does not exclude that the elements appearing before "include" or "comprise" may also include other elements. If "several" appears in the present invention, it means two or more.

[0039] See also Figures 1 to 10 As shown, this embodiment discloses a photovoltaic roof, including a purlin 100, a photovoltaic module 200 and a water channel, the water channel is fixed on the purlin 100, the photovoltaic module 200 is fixedly mounted on the water channel, and the water channel is used to support the photovoltaic module 200 while guiding water. The water channel of the present application is processed by a bending process, has a simple structure, and has a high structural stability.

[0040] See also Figure 1 and Figure 2 As shown, the water guide groove includes a first water guide portion 1, two second water guide portions 2 and two connecting portions 3, the two second water guide portions 2 are arranged on both sides of the first water guide portion 1, a first opening groove 10 is arranged on the first water guide portion 1, a second opening groove 20 is arranged on the second water guide portion 2, the two second opening grooves 20 are arranged on both sides of the first opening groove 10, the openings of the first opening groove 10 and the second opening groove 20 are both upward, and the connecting portion 3 connects the first water guide portion 1 and the second water guide portion 2. Further, a buffer pad 40 is arranged on the connecting portion 3 to stably support the photovoltaic module 200 upward.

[0041] See also Figures 1 to 3As shown, each connection part 3 includes a limiting part 30, the limiting part 30 is connected to the first water guide part 1 and extends to the first opening groove 10, and the limiting part 30 includes a first connecting wall 31 and a second connecting wall 32 connected to each other, wherein the first connecting wall 31 is connected to the first water guide part 1, and the second connecting wall 32 is connected to the second water guide part 2. Further, the first connecting wall 31 is located at the opening position of the first opening groove 10, and can be specifically set to be flush with the opening of the first opening groove 10, and the first connecting wall 31 is located above the opening of the first opening groove 10, that is, the connection part 3 is set above the top of the opening of the first opening groove 10; or the first connecting wall 31 is located below the opening of the first opening groove 10, that is: the connection part 3 is set in the first opening groove 10, and there is a certain distance from the top of the first opening groove 10; at the same time, the first connecting wall 31 and the second connecting wall 32 can be set horizontally, or can be set to be gradually inclined upward or gradually inclined downward, that is: the limiting part 30 is set horizontally or inclined.

[0042] Please continue to refer to Figures 1 to 3 As shown, the second connecting wall 32 is located above the first connecting wall 31 and at least partially fits with the first connecting wall 31, and the distance between the two connecting parts 3 is less than the width of the first opening groove 10; in this way, the first connecting wall 31 and the second connecting wall 32 form a reverse bending structure, and the upper and lower bending surfaces are aligned, and there is no gap between the two, thereby improving the supporting strength of the water guide groove; the distance between the two connecting parts 3 is less than the maximum width of the first opening groove 10, thereby forming a step at the upper end of the first opening groove 10, providing a limit for the slider 72 of the fixing assembly 70, thereby achieving the fixation of the water guide groove. In this embodiment, the length of the second connecting wall 32 is greater than the length of the first connecting wall 31, and the second connecting wall 32 is partially aligned with the first connecting wall 31. In other embodiments, the length of the second connecting wall 32 can be the same as the length of the first connecting wall 31, and the second connecting wall 32 is completely aligned with the first connecting wall 31.

[0043] Further, each connecting portion 3 includes a third connecting wall 33, one end of the third connecting wall 33 is connected to the second water guide portion 2, and the other end is connected to the second connecting wall 32. The second connecting wall 32 is connected to the second water guide portion 2 through the third connecting wall 33, and the height position of the third connecting wall 33 is higher than the second connecting wall 32. In this way, a downwardly bent structure is formed between the third connecting wall 33 and the second connecting wall 32 to further enhance the strength of the water guide groove and provide installation space for the buffer pad 40. The buffer pad 40 is at least partially arranged on the second connecting wall 32, and the upper surface of the buffer pad 40 is arranged as a tooth-shaped structural surface to enhance the stability of the photovoltaic assembly 200 installed on the water guide groove, and at the same time, it can play a role in anti-slip and shock absorption. In other embodiments, the setting of the third connecting wall 33 can also be cancelled, and only the first connecting wall 31 and the second connecting wall 32 are arranged, and the second connecting wall 32 is connected to the second side wall 22 of the second water guide portion 2 while being attached to the first connecting wall 31.

[0044] See also Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the first water guiding portion 1 includes a first bottom wall 11 and two first side walls 12 arranged on both sides of the first bottom wall 11, the two first side walls 12 are arranged in parallel and the first side wall 12 is perpendicular to the first bottom wall 11, and the first bottom wall 11 and the two first side walls 12 enclose a first opening groove 10; the second water guiding portion 2 includes a second bottom wall 21 and a second side wall 22 and a third side wall 23 arranged in parallel on both sides of the second bottom wall 21, the second bottom wall 21, the second side wall 22, and the third side wall 23 together enclose a second opening groove 20, wherein the second side wall 22 is close to the first opening groove 10 relative to the third side wall 23, the second side wall 22, the third side wall 23 are vertically arranged with the first side wall 12, and the second bottom wall 21 and the first bottom wall 11 are horizontally arranged. Further, the height position of the first bottom wall 11 is higher than the second bottom wall 21, that is, the depth of the first open groove 10 is less than the depth of the second open groove 20. The advantage of such a setting is that the depth of the second open groove 20 is larger, so that the lengths of the second side wall 22 and the third side wall 23 are larger, and while the supporting strength of the water guide groove is improved, it has a better water guide effect and avoids water leakage caused by the shallow depth of the first open groove 10; the depth of the first open groove 10 is smaller. When there is more water in the first open groove 10, the excess water can flow into the second open groove 20, and there is no risk of water leakage. Therefore, a smaller depth can meet the water guide needs, avoid unnecessary material waste, and thus reduce costs. Preferably, the depth of the first open groove 10 is about half of the depth of the second open groove 20. The distance between the two first side walls 12 is greater than half of the distance between the two second side walls 22, that is, the width of the first open groove 10 is at least more than half of the distance between the two second side walls 22. Such a setting can further effectively reduce the risk of water accumulation and water leakage in the first open groove 10.

[0045] See also Figure 1 and Figure 5 As shown, in this embodiment, the first water guide portion 1 further includes an inclined side wall 13, and the inclined side wall 13 connects the first bottom wall 11 and the first side wall 12. Specifically, the two ends of the inclined side wall 13 are respectively connected to one end of the first bottom wall 11 close to the first side wall 12 and one end of the first side wall 12 close to the first bottom wall 11. In this way, the bottom width of the first open groove 10 gradually decreases from top to bottom, which can effectively reduce water accumulation compared to the case where the overall width of the first open groove 10 is the same. The water guide groove is integrally bent and formed by a bending process, which is simple in process and low in manufacturing cost.

[0046] See also Figure 2 , Figure 4 and Figure 5As shown, in one embodiment, a water guide groove installation structure is also disclosed, including a water guide groove, a mounting block 60, a fixing assembly 70 and a photovoltaic assembly 200, the water guide groove is fixedly connected to a purlin (not shown) through the mounting block 60, the mounting block 60 includes a support portion 61 and a hook portion 62 and a fixing portion 63 respectively arranged at both ends of the support portion 61, the support portion 61 is parallel to the third side wall 23, the hook portion 62 is located on a side of the support portion 61 close to the second opening groove 20, and the fixing portion 63 is located on a side of the support portion 61 away from the second opening groove 20. Specifically, the hook portion 62 extends from the upper end of the support portion 61 laterally close to the second opening groove 20 and downwardly forms a hook shape, and the fixing portion 63 extends from the lower end of the support portion 61 laterally away from the second opening groove 20.

[0047] See also Figure 1 , Figure 2 and Figure 5 As shown, the water channel is provided with an extension portion 50, and the extension portion 50 is connected to one end of the second opening groove 20 away from the first opening groove 10, specifically, the extension portion 50 is connected to the upper end of the third side wall 23, and is parallel to the first bottom wall 11. The hook portion 62 is hooked with the extension portion 50 and the upper end of the third side wall 23, and the fixing portion 63 is fixedly connected to the purlin 100, specifically, the fixing portion 63 can be fixedly connected to the purlin 100 by a fastener 64, thereby realizing the fixing of the water channel on the roof.

[0048] In some embodiments, see Figure 2 , Figure 5 , Figure 8 and Fig.10 As shown, the mounting block 60 also includes an extension portion 65, which bends downward and extends from one end of the fixing portion 63 away from the supporting portion 61. At this time, the height position of the fixing portion 63 is higher than the second bottom wall 21, and the lower end of the extension portion 65 is flush with the second bottom wall 21 to cooperate with the second bottom wall 21 to be supported on the purlin 100.

[0049] See also Figures 4 to 6As shown, the photovoltaic assembly 200 is installed on the water guide groove through the fixing assembly 70, and the fixing assembly 70 includes a pressing block 71, a slider 72 and a locking member 73. The photovoltaic assembly 200 is at least partially located between the pressing block 71 and the slider 72, and the locking member 73 locks the pressing block 71 and the slider 72. Further, the slider 72 is limited to the water guide groove, thereby realizing the fixed connection between the photovoltaic assembly 200 and the water guide groove. The pressing block 71 includes a lower concave portion 711 and a pressing portion 712, and the two pressing portions 712 are arranged at the upper ends of both sides of the lower concave portion 711. The lower concave portion 711 includes a bottom plate 7111 and two side plates 7112 arranged on both sides of the bottom plate 7111. The two side plates 7112 respectively abut the adjacent sides of two adjacent photovoltaic assemblies 200, and the pressing portion 712 abuts the upper surface of the photovoltaic assembly 200 downward. The slider 72 includes a base 721 and a protrusion 722. The two sides of the base 721 respectively abut the adjacent sides of two adjacent photovoltaic modules 200. The protrusion 722 protrudes outwardly from the lower ends of the two sides of the base 721 and is located in the first opening groove 10. The protrusion 722 abuts the limiting portion 30 upward. Specifically, the protrusion 722 abuts the first connecting wall 31 upward and transmits force to the second connecting wall 32, the buffer pad 40, and the lower surface of the photovoltaic module 200 in sequence. The lower recess 711 is provided with a through hole 713, which is set through the bottom plate 7111. The base 721 is provided with a slot 723. The locking member 73 penetrates the through hole 713 and the slot 723 to lock and connect the pressing block 71 with the slider 72; the locking member 73 has an external thread, and the slot 723 has a corresponding internal thread to cooperate with the locking and fixing of the pressing block 71 and the slider 72. Furthermore, the outer diameter of the concave portion 711 is equal to the outer diameter of the base portion 721. This arrangement not only allows the photovoltaic assembly 200 to be mounted on the water channel, but also allows the photovoltaic assembly 200 to be limited to prevent displacement, and is easy to install and remove.

[0050] Furthermore, the fixing assembly 70 also includes a washer 74 for strengthening the locking and fixing effect of the locking member 73 .

[0051] In the above embodiment, no colored steel tiles are provided on the photovoltaic roof, and the photovoltaic module 200 is fixedly connected to the water channel through the fixing assembly 70, and the water channel is fixed to the purlin (which belongs to the steel structure part of the roof) through the mounting block 60. The photovoltaic module 200 not only generates electricity but also serves as a roof.

[0052] In another embodiment, see Figures 7 to 10As shown, the photovoltaic roof also includes a color steel tile 300, and the color steel tile 300 is fixed on the purlin 100. In this case, by setting a raised seat 80 on the color steel tile 300, the mounting block 60 fixes the water channel on the raised seat 80. The raised seat 80 includes a support plate 81 and a first fixing plate 82 and a second fixing plate 83 arranged at both ends of the support plate 81. The support plate 81 is perpendicular to the color steel tile 300, the first fixing plate 82 is connected to the fixing portion 63, and the second fixing plate 83 is connected to the color steel tile 300. The fixing portion 63 is fixedly connected to the first fixing plate 82 by a fastener 64, and the second fixing plate 83 is fixedly connected to the color steel tile 300 by a fastener 64. Further, the color steel tile 300 has a protrusion 301, and the raised seat 80 is correspondingly provided with a hollow portion 84. The height of the support plate 81 is greater than the height of the protrusion 301, and the lowest point of the water channel is higher than the protrusion 301. The first fixing plate 82 and the second fixing plate 83 of the cushion seat 80 may be disposed on the same side or different sides of the support plate 81 .

[0053] In this embodiment, the water channel is formed by cold-bending steel, which is easy to process, does not require mold making, and has low production and transportation costs; the fasteners 64 are self-tapping screws.

[0054] The water guide trough of this embodiment can be applied to roofs with or without colored steel tiles, and can be widely used in roofs and carports, etc., and has good applicability.

[0055] In summary, compared with the prior art, the water guide groove, water guide groove installation structure and photovoltaic roof of the utility model have the following advantages: a water guide groove with a simple structure is designed, and the raw materials can be produced by a simple bending process, without the need for mold opening, which greatly simplifies the production process and reduces the production cost; the water guide groove includes a first opening groove 10, a second opening groove 20 and a connecting part 3, and the limiting part 30 of the connecting part 3 is provided with a double-layer bending structure to enhance the strength of the water guide groove; a buffer pad 40 is arranged between the photovoltaic component 200 and the water guide groove to enhance the stability of the photovoltaic component 200 and at the same time play an anti-slip and shock-absorbing role; the photovoltaic component 200 is installed on the water guide groove through a fixing component 70, and the fixing component 70 includes a pressing block 71 and a sliding block 72, the pressing block 71 presses the photovoltaic component 200 downward, and the sliding block 72 presses the photovoltaic component 200 upward, and the sliding block 72 is limited in the first opening groove 10, so as to enhance the firmness of the fixation between the photovoltaic component 200 and the water guide groove and reduce the risk of loosening of the photovoltaic component 200. The water guide trough, the water guide trough fixing structure and the photovoltaic roof installation have high stability, good water guide effect and low production cost.

[0056] The above implementation modes are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of this specification should be based on the technical personnel in the relevant technical field. Although this specification has described the present invention in detail with reference to the above embodiments, ordinary technical personnel in the field should understand that the technical personnel in the relevant technical field can still modify or make equivalent substitutions to the present invention, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A water channel, characterized in that: The invention comprises a first water guide portion (1), two second water guide portions (2) arranged on both sides of the first water guide portion (1), and two connecting portions (3) connecting the first water guide portion (1) and the second water guide portion (2), wherein the first water guide portion (1) is provided with a first opening groove (10), and the second water guide portion (2) is provided with a second opening groove (20), and the openings of the first opening groove (10) and the second opening groove (20) are both upwards; Each of the connecting parts (3) comprises a limiting part (30), the limiting part (30) being connected to the first water guiding part (1) and extending toward the first opening groove (10), the limiting part (30) comprising a first connecting wall (31) and a second connecting wall (32) connected to each other, the first connecting wall (31) being connected to the first water guiding part (1) and being located at an opening position of the first opening groove (10), and the second connecting wall (32) being located above the first connecting wall (31) and at least partially in contact with the first connecting wall (31).

2. The water channel according to claim 1, characterized in that: The connecting portion (3) further comprises a third connecting wall (33), the third connecting wall (33) being connected to the second water guiding portion (2), the third connecting wall (33) being located at a height higher than the second connecting wall (32), the water guiding groove further comprises a buffer pad (40), the buffer pad (40) being arranged on the connecting portion (3) and at least partially arranged on the second connecting wall (32), the upper surface of the buffer pad (40) being arranged as a tooth-shaped structural surface.

3. The water channel according to claim 1, characterized in that: The first water guiding portion (1) comprises a first bottom wall (11) and two first side walls (12) arranged on both sides of the first bottom wall (11), the first bottom wall (11) and the two first side walls (12) together form the first opening groove (10), the second water guiding portion (2) comprises a second bottom wall (21) and a second side wall (22) and a third side wall (23) arranged on both sides of the second bottom wall (21), the second bottom wall (21), the second side wall (22) and the third side wall (23) together form the second opening groove (20), wherein the second side wall (22) is closer to the first opening groove (10) than the third side wall (23); The distance between the two first side walls (12) is greater than half the distance between the two second side walls (22), and the first bottom wall (11) is located at a higher height than the second bottom wall (21).

4. The water channel according to claim 3, characterized in that: The first water guiding portion (1) further comprises an inclined side wall (13), wherein the inclined side wall (13) connects the first bottom wall (11) and the first side wall (12).

5. The water channel according to any one of claims 1 to 4, characterized in that: The water guide groove is formed by bending in one piece.

6. A water channel installation structure, characterized in that: The invention comprises a water guide groove as claimed in any one of claims 1 to 4, a mounting block (60), a fixing assembly (70) and a photovoltaic assembly (200), wherein the mounting block (60) comprises a supporting portion (61) and a hook portion (62) arranged at one end of the supporting portion (61), the water guide groove comprises an extending portion (50), the extending portion (50) is arranged at an end of the second water guide portion (2) away from the first water guide portion (1), the hook portion (62) is hooked with the extending portion (50), the fixing assembly (70) comprises a pressing block (71), a sliding block (72) and a locking member (73), the photovoltaic assembly (200) is installed on the water guide groove through the fixing assembly (70), the photovoltaic assembly (200) is at least partially located between the pressing block (71) and the sliding block (72), and the locking member (73) locks the pressing block (71) and the sliding block (72) together.

7. The water channel installation structure according to claim 6, characterized in that: The hook portion (62) is located on a side of the support portion (61) close to the second opening groove (20); The pressing block (71) comprises a lower concave portion (711) and two pressing portions (712) arranged at upper ends of both sides of the lower concave portion (711), and the pressing portions (712) abut downward against the upper surface of the photovoltaic assembly (200); The slider (72) comprises a base (721) and a protruding portion (722), wherein the protruding portion (722) protrudes outwardly from the lower ends of both sides of the base (721) and is located in the first opening groove (10), and the protruding portion (722) abuts against the limiting portion (30) upwards; The lower recess (711) is provided with a through hole (713), the base (721) is provided with a slot hole (723), and the locking member (73) penetrates the through hole (713) and the slot hole (723) to lock and connect the pressing block (71) and the sliding block (72).

8. A photovoltaic roof, characterized in that: It comprises a purlin and a water channel mounting structure as claimed in claim 6, wherein the water channel is fixed on the purlin, and the mounting block (60) comprises a fixing portion (63), wherein the fixing portion (63) is located on a side of the supporting portion (61) away from the second water channel (2), and the fixing portion (63) is fixedly connected to the purlin (100) via a fastener (64).

9. A photovoltaic roof, characterized in that: The invention comprises a purlin (100), a color steel tile (300) and a water guide trough installation structure as claimed in claim 6, wherein the color steel tile (300) is fixed on the purlin (100), a raised seat (80) is provided on the color steel tile (300), the water guide trough is fixedly connected to the raised seat (80) through a mounting block (60), the raised seat (80) comprises a support plate (81) and a first fixed plate (82) and a second fixed plate (83) arranged at both ends of the support plate (81), the mounting block (60) further comprises a fixing portion (63), the fixing portion (63) is located on a side of the support portion (61) away from the second water guide portion (2), the fixing portion (63) is connected to the first fixed plate (82) through a fastener (64), and the second fixed plate (83) is connected to the color steel tile (300).

10. The photovoltaic roof according to claim 9, characterized in that: The color steel tile (300) has a protrusion (301), the raised seat (80) is correspondingly provided with a hollow portion (84), and the height of the support plate (81) is greater than the height of the protrusion (301).

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