A snow blocking device installed on a photovoltaic support

Abstract

The utility model discloses a snow-blocking device installed on a photovoltaic bracket, which relates to photovoltaic technology, including a bracket installed on the photovoltaic bracket and a snow-blocking assembly installed on the bracket, wherein the snow-blocking assembly is arranged on the front side of the front frame of the photovoltaic assembly, and the snow-blocking assembly includes an upper dividing net and a lower dividing net, wherein the upper dividing net is used to divide the snow sliding down from the photovoltaic assembly for the first time and to buffer the snow, and the lower dividing net is used to divide the snow falling from the upper dividing net again. The double-layer dividing net design of the utility model can divide the snow twice, which can reduce the descent speed of skiing on the one hand, and divide the snow into more small snow blocks on the other hand, so that the dividing effect is more obvious and the scattering degree of skiing is higher, thereby reducing the damage to nearby objects and people.

Description

[Technical field]

[0001] The utility model belongs to the technical field of photovoltaics, and in particular relates to a snow blocking device installed on a photovoltaic bracket. [Background technology]

[0002] With the continuous development of the photovoltaic market, photovoltaic power stations are installed with more and more components on the south side, and the problem of snowfall and skiing is becoming increasingly prominent. At present, the surface of photovoltaic components is set to be relatively smooth to prevent dust accumulation from affecting power generation, which makes the snow easier to slide after snowing. However, snow usually accumulates into piles and slides down under its own weight. If the snow slides down without intervention, it will threaten the lives and property of temporary buildings on the ground and passers-by.

[0003] The prior art has a snow blocking clamp installed on the lower side frame of the photovoltaic module, referring to the Chinese invention patent application with application publication number CN113179083A, which includes a first clamp and a second clamp for clamping with the frame of the photovoltaic module, the first clamp is provided with a U-shaped groove structure for clamping with the upper wall, outer wall and lower wall of the frame, the U-shaped groove structure extends parallel to the lower wall; the second clamp cooperates with the extended plate of the U-shaped groove structure to clamp the lower wall, the first clamp is provided with a partition plate for separating the snow on the photovoltaic panel of the photovoltaic module, and the partition plate is arranged on the U-shaped groove structure. The U-shaped groove structure is fixed to the upper wall of the frame by self-tapping screws, and the second clamp cooperates with the first clamp to clamp the lower wall of the frame. The installation process is simple, but because it is fixed solely by the friction between the self-tapping screws and the component frame, it cannot withstand the downward force of the ski when the snow is heavy, and it slides down with the snow, which may cause secondary damage to people and objects. At the same time, due to its relatively small width, it can only perform a simple blocking and splitting of large pieces of snow. When the ski is large, it cannot effectively split the ski, resulting in an insignificant splitting effect. [Contents of the utility model]

[0004] In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a snow blocking device that is lightly installed on a photovoltaic bracket, so as to solve the safety risk problem caused by large pieces of snow sliding off the surface of the photovoltaic module, ensure personal safety and avoid property loss.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A snow-blocking device installed on a photovoltaic bracket comprises a bracket installed on the photovoltaic bracket and a snow-blocking assembly installed on the bracket, wherein the snow-blocking assembly is arranged on the front side of the front frame of the photovoltaic assembly, and the snow-blocking assembly comprises an upper dividing net and a lower dividing net, wherein the upper dividing net is used for the first division of snow sliding down from the photovoltaic assembly and for buffering the snow, and the lower dividing net is used for a second division of snow falling from the upper dividing net.

[0007] Preferably, the upper dividing net rises in a streamlined manner from back to front.

[0008] Preferably, the upper dividing net includes an upper skeleton and an upper dividing net body connected to the upper skeleton, the lower dividing net includes a lower skeleton and a lower dividing net body connected to the lower skeleton, and support ribs are provided between the upper skeleton and the lower skeleton.

[0009] Preferably, the mesh number of the lower dividing net body is greater than the mesh number of the upper dividing net body; and / or, the lower dividing net is further provided with dividing ribs for assisting the lower dividing net body in dividing snow.

[0010] Preferably, the upper skeleton and the lower skeleton are made of high-strength zinc-aluminum-magnesium material; and / or the upper dividing net body and the lower dividing net body are made of steel wire mesh.

[0011] Preferably, the photovoltaic support includes an oblique beam, the oblique beam has a cantilevered portion extending forward beyond the front frame of the photovoltaic component, and the bracket is connected to the cantilevered portion by a through-column bolt.

[0012] Preferably, the bracket includes an oblique mounting portion, a horizontal supporting portion and a vertical blocking portion, the oblique mounting portion is fixed to the lower side of the oblique beam, the horizontal supporting portion is used to support the snow guard assembly, and the vertical blocking portion is arranged on the front side of the snow guard assembly and divides the accumulated snow that slides over.

[0013] Preferably, the vertical blocking portion is a triangular prism with one of its sharp corners facing rearward.

[0014] Preferably, the photovoltaic support includes a column, and a diagonal brace is provided between the bracket and the column; and / or the bracket is welded to the snow guard assembly or fixed with fasteners.

[0015] Preferably, the bracket is made of high-strength zinc-aluminum-magnesium material; and / or the bracket is an integrated structure or is welded into a whole in sections.

[0016] The utility model adopts the above technical solution and has the following beneficial effects:

[0017] 1. Traditional snow guards only rely on the width of their own clamps to divide the skis, and the effect is not obvious when the snow blocks are large. The technical solution adopted by the utility model is that the snow guard component is provided with an upper dividing net and a lower dividing net. The design of the double-layer dividing net can divide the snow twice. The first division plays a buffering role on the snow, and the lower dividing net is used to divide the snow falling from the upper dividing net again. This can reduce the descent speed of the skis on the one hand, and divide the snow into more small snow blocks on the other hand. The dividing effect is more obvious, and the scattering degree of the skis is higher, thereby reducing damage to nearby objects and people, ensuring personal safety and avoiding property losses, and solving the safety risks caused by large pieces of snow sliding on the surface of photovoltaic modules.

[0018] In addition, the bracket for installing the snow-blocking component is fixed on the photovoltaic support. The fixing method is flexible and can be fixed using a safer and more reliable structure. Compared with the traditional snow-blocking clamp fixed on the frame of the photovoltaic component, it is not easy to fall off and has a higher degree of safety.

[0019] 2. The upper dividing net adopts a streamlined design. The skis rise in a streamlined manner from the back to the front, which can buffer the skis and reduce the downward force of the skis. At the same time, the streamlined design increases the dividing area, which is conducive to the division of the skis.

[0020] 3. The main body of the upper dividing net is fixed to the upper frame, and the main body of the lower dividing net is fixed to the lower frame. Therefore, the structures of the upper dividing net and the lower dividing net are reliable and not easily damaged by the impact of skiing. At the same time, since supporting ribs are arranged between the upper frame and the lower frame, the distance between the upper dividing net and the lower dividing net is fixed, which is beneficial for the double-layer dividing net to divide the accumulated snow twice, enhance the overall structural strength of the snow-blocking assembly, and extend its service life.

[0021] 4. In order to improve the effect of the lower dividing net on the re-dividing of snow, the mesh number of the lower dividing net body is larger than the mesh number of the upper dividing net body. Therefore, after the skis are divided by the lower dividing net, the dividing effect is more obvious and the scattering degree of the skis is higher. The lower dividing net can also maintain the same structure as the upper dividing net, and can also add dividing ribs to assist the lower dividing net body to divide the snow and increase the scattering degree of the snow on the ground.

[0022] 5. Since the upper and lower frames are made of high-strength zinc-aluminum-magnesium materials, they are stronger and cheaper while ensuring anti-corrosion performance. Since the upper and lower dividing net bodies are made of steel wire mesh, they are more durable.

[0023] 6. Compared with the traditional snow-proof clamps that are simply fixed by the friction between the self-tapping bolts and the component frame, this snow-blocking device is fixed on the cantilevered part of the inclined beam, and is fixed through the column bolts and the inclined beam. The fixing method is safer, not easy to fall off, and has a higher degree of safety, avoiding the secondary damage to surrounding buildings caused by the traditional snow-blocking clamps sliding down with the snow.

[0024] And due to the innovative installation method, there is no need to install it above the photovoltaic module. It only needs to be fixed and installed with through-column bolts below the photovoltaic module, which is convenient for construction.

[0025] In addition, since the bracket is fixed on the cantilevered part of the inclined beam and is not connected to the photovoltaic module, the photovoltaic module will not be damaged or blocked due to the installation of the bracket.

[0026] 7. The bending angle of the oblique mounting part relative to the horizontal supporting part is designed corresponding to the angle of the oblique beam, which is convenient for fitting with the oblique beam and makes the mounting structure more reliable. The horizontal supporting part is used to support the snow guard assembly, and the vertical blocking part is arranged on the front side of the snow guard assembly, which not only has a front limit effect on the snow guard assembly, but also can divide the overflowed snow to form a second division, thereby achieving a multi-functional split skiing effect.

[0027] 8. The vertical blocking portion is a triangular prism with one of its sharp corners facing the rear, such as an equilateral triangular prism, whose angle faces the ski, and the ski hits the vertical blocking portion head-on, which is conducive to dividing the accumulated snow.

[0028] 9. Since a diagonal brace is provided between the bracket and the column, the gravity of the snow-blocking assembly can be dispersed through the diagonal brace, effectively supporting the snow-blocking assembly and increasing the fixing reliability of the bracket. The bracket and the snow-blocking assembly can be connected by welding, which is relatively low in cost.

[0029] 10. The bracket is made of high-strength zinc-aluminum-magnesium material, which ensures anti-corrosion performance while being stronger and lower in cost.

[0030] These features and advantages of the present invention will be disclosed in detail in the following specific implementation manners and drawings.

Brief Description of the Drawings

[0031] The utility model is further described below in conjunction with the accompanying drawings:

[0032] Figure 1 It is a top view of the upper segmentation network;

[0033] Figure 2 It is a top view of the lower segmentation network;

[0034] Figure 3 is a side view of the snow guard assembly;

[0035] Figure 4 is a side view of the bracket;

[0036] Figure 5 It is a front view schematic diagram of the snow blocking device;

[0037] Figure 6 It is a schematic diagram of the three-dimensional structure of the vertical blocking part;

[0038] Figure 7 It is a schematic diagram of the connection structure between the bracket and the photovoltaic support;

[0039] Figure 8 It is a schematic diagram of the structure in which the upper frame and the lower frame are connected by supporting ribs;

[0040] Figure markings: snow guard assembly 1, upper dividing net 11, upper dividing net body 111, upper frame 112, lower dividing net 12, lower dividing net body 121, lower frame 122, dividing ribs 123, supporting ribs 13, bracket 2, oblique mounting portion 21, horizontal supporting portion 22, vertical blocking portion 23, photovoltaic assembly 3, photovoltaic bracket 4, oblique beam 41, column 42, oblique support rod 43. [Specific implementation method]

[0041] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0042] Those skilled in the art will appreciate that, in the absence of conflict, the features in the following embodiments and implementations may be combined with each other.

[0043] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. For example, the following words indicating orientation or positional relationship, such as "upper", "lower", "inner", "outer", etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0044] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0045] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0046] Reference Figure 1 and Figure 2 As shown, the photovoltaic module 3 is rectangular, and each photovoltaic module is surrounded by a rectangular frame. In addition, in a photovoltaic system, multiple photovoltaic modules can be arranged in a rectangular array, or only a single photovoltaic module can be set, and the photovoltaic module is installed on the photovoltaic bracket 4. The snow blocking device in the prior art is installed on the front side frame of the photovoltaic module. Since the photovoltaic module is tilted, the snow slides down from the top, so it can also be said to be installed on the lower side frame of the photovoltaic module.

[0047] In order to solve the problem that the existing snow blocking device cannot effectively divide the skiing when the snow is heavy. Figures 1 to 8 As shown, this embodiment provides a snow-blocking device installed on a photovoltaic bracket, including a bracket 2 installed on a photovoltaic bracket 4 and a snow-blocking assembly 1 installed on the bracket 2, wherein the snow-blocking assembly 1 is arranged on the front side of the front frame of the photovoltaic component, and the snow-blocking assembly 1 includes an upper dividing net 11 and a lower dividing net 12, wherein the upper dividing net 11 is used to divide the snow sliding down from the photovoltaic component for the first time and to buffer the snow, and the lower dividing net 12 is used to divide the snow falling from the upper dividing net again. The upper dividing net 11 and the lower dividing net 12 can be of equal size, and from the downward horizontal projection, the length thereof exceeding the front frame of the photovoltaic component is L, and this length can be designed as needed to ensure that the skiing can be divided by the upper dividing net 11 and the lower dividing net 12.

[0048] Traditional snow guards only rely on the width of their own clamps to divide the skis, and the effect is not obvious when the snow blocks are large. The technical solution adopted by the utility model is that the snow guard component is provided with an upper dividing net and a lower dividing net. The design of the double-layer dividing net can divide the snow twice. The first division also plays a buffering role on the snow, and the lower dividing net is used to divide the snow that falls from the upper dividing net again. This not only reduces the descent speed of the skis, but also divides the snow into more small snow blocks. The dividing effect is more obvious, and the scattering degree of the skis is higher, thereby reducing damage to nearby objects and people, ensuring personal safety and avoiding property losses, and solving the safety risks caused by large pieces of snow sliding off the surface of photovoltaic modules.

[0049] In addition, the bracket for installing the snow-blocking component is fixed on the photovoltaic support. The fixing method is flexible and can be fixed using a safer and more reliable structure. Compared with the traditional snow-blocking clamp fixed on the frame of the photovoltaic component, it is not easy to fall off and has a higher degree of safety.

[0050] like Figure 3 As shown, in this embodiment, the upper dividing net 11 rises from the back to the front in a streamlined manner. The skis rise in a streamlined manner from the back to the front, which can buffer the skis and reduce the downward force of the skis. At the same time, the streamlined design increases the segmentation area of ​​the upper dividing net, which is conducive to the segmentation of the skis. Of course, it is understandable that the upper dividing net can also rise from the back to the front. It is also possible to set an upwardly protruding snow blocking piece at the front end of the upper dividing net, so as to re-segment the large pieces of skis that may rush out of the upper dividing net, reduce the damage to nearby objects and people, ensure personal safety and avoid property losses.

[0051] Specifically, the upper layer partition net 11 includes an upper layer frame 112 and an upper layer partition net body 111 connected to the upper layer frame, and the lower layer partition net 12 includes a lower layer frame 122 and a lower layer partition net body 121 connected to the lower layer frame. Figure 8 As shown, a support rib 13 is provided between the upper skeleton 112 and the lower skeleton 122. Among them, the upper partition net body and the lower partition net body are both rectangular, and the upper skeleton and the lower skeleton both include two cross bars arranged side by side in the front and back, and the upper partition net body and the lower partition net body are connected between the two cross bars. Of course, a longitudinal bar can also be connected between the two ends of the two cross bars, so that the upper skeleton and the lower skeleton are rectangular frames, and the support ribs are connected between the cross bars of the upper skeleton and the cross bars of the lower skeleton, and multiple support ribs can be arranged in the transverse direction. Through the strong support of the upper skeleton and the lower skeleton, the upper partition net and the lower partition net have reliable structures and are not easily damaged by skiing impact. At the same time, since the support ribs are provided between the upper skeleton and the lower skeleton, the spacing between the upper partition net and the lower partition net is guaranteed to be fixed, which is conducive to the double-layer partition net to perform two-time partitioning processing on the accumulated snow, and enhance the overall structural strength of the snow-blocking assembly and extend the service life.

[0052] In order to achieve double segmentation and improve the segmentation effect of the lower segmentation net on the snow, the mesh number of the lower segmentation net body 121 is greater than the mesh number of the upper segmentation net body 111. Of course, the lower segmentation net can also be provided with a segmentation rib 123 to assist the lower segmentation net body in segmenting the snow. Therefore, after the segmentation by the lower segmentation net, the segmentation effect is more obvious and the scattering degree of the ski is higher; the lower segmentation net can also maintain the same structure as the upper segmentation net, and of course, it can also be added with a segmentation rib, such as configuring at least one transverse segmentation rib and at least one longitudinal segmentation rib to assist the lower segmentation net body in segmenting the snow and increase the scattering degree of the snow on the ground. In this embodiment, the upper segmentation net 11 and the lower segmentation net 12 are both rectangular and equal in size, wherein the mesh is rhombus-shaped, which increases the snow penetration while segmenting the ski and avoids ski accumulation. The segmentation rib added to the lower segmentation is a transverse segmentation rib, which is arranged on the lower side of the segmentation net body and can be welded to the bracket. Its position corresponds exactly to the middle of the rhombus, which is equivalent to dividing the rhombus into two equally divided triangles.

[0053] Preferably, the upper frame 112 and the lower frame 122 are made of high-strength zinc-aluminum-magnesium material. While ensuring anti-corrosion performance, the strength is greater and the cost is lower. The upper dividing net body 111 and the lower dividing net body 121 are made of steel wire mesh. A galvanized layer is added to the surface of the steel wire, which is not only high in strength, but also not easy to rust, has a long service life, and has a better effect of cutting snow.

[0054] With reference to the prior art, the photovoltaic bracket includes an inclined beam 41, and the inclined beam 41 has a cantilevered portion that extends forward beyond the front frame of the photovoltaic module. In this embodiment, the cantilevered portion is used to install the bracket 2, and the bracket 2 is connected to the cantilevered portion by a through-column bolt. Holes are punched on the bracket and the cantilevered portion to connect the through-column bolts, which is convenient for installing the bracket and is reliably fixed. Of course, other fasteners can also be used for fixing. Compared with the traditional snow-proof clamp that is simply fixed by the friction between the self-tapping bolts and the frame of the component, the snow-blocking device is fixed on the cantilevered portion of the inclined beam, and is fixed through the through-column bolts and the inclined beam. The fixing form is safer, not easy to fall off, and has a higher degree of safety, which avoids the secondary damage to surrounding buildings caused by the traditional snow-blocking clamp sliding along with the snow.

[0055] And due to the innovative installation method, there is no need to install it above the photovoltaic module. It only needs to be fixed and installed with through-column bolts below the photovoltaic module, which is convenient for construction.

[0056] In addition, since the bracket is fixed on the cantilevered part of the inclined beam and is not connected to the photovoltaic module, the photovoltaic module will not be damaged or blocked due to the installation of the bracket.

[0057] like Figures 4 to 7As shown, specifically, the bracket 2 includes an oblique mounting portion 21, a horizontal supporting portion 22 and a vertical blocking portion 23. The oblique mounting portion 21 is fixed to the lower side of the oblique beam 41, the horizontal supporting portion 22 is used to support the snow-blocking assembly 1, and the vertical blocking portion 23 is arranged at the front side of the snow-blocking assembly and divides the accumulated snow that has slid over. The bending angle of the oblique mounting portion relative to the horizontal supporting portion is designed to correspond to the angle of the oblique beam, which is convenient for fitting with the oblique beam, and the installation structure is more reliable. The horizontal supporting portion extends horizontally to ensure that the snow-blocking assembly is placed stably. The vertical blocking portion can not only divide the accumulated snow that has slid over to form a second division to achieve the effect of multi-functional split skiing, but also has a front-side limiting function for the snow-blocking assembly.

[0058] like Figure 6 As shown, further, the vertical blocking portion 23 is a triangular prism with one of its sharp corners facing the rear side. For example, an equilateral triangular prism, with its sharp corner facing the ski, the ski hits the vertical blocking portion head-on, which is conducive to dividing the snow overflowing from the south side. Of course, ordinary cylindrical, square column structures or other shapes are also feasible.

[0059] Referring to the prior art, such as Figure 7 As shown, the photovoltaic bracket 4 also includes a column 42. In addition, in order to increase the stability and reliability of the bracket, a diagonal support rod 43 is provided between the bracket 2 and the column 42. Both ends of the bracket are hinged with hinges, and the hinges are fixed to the bracket and the column. Specifically, the horizontal supporting portion 22 of the bracket is connected to the diagonal support rod 43 through the hinge, so as to disperse the gravity of the snow shield assembly through the diagonal support rod, and effectively support the snow shield assembly.

[0060] Specifically, the bracket is welded to the snow guard assembly or can be fixed with fasteners, such as bolts, such as tying bars. The bracket is made of high-strength zinc-aluminum-magnesium material, for example, an integrated structure, which can be mass-produced by sheet metal bending process or die stamping. Of course, hollow tubes can also be welded into a whole in sections, such as the oblique installation part 21, the horizontal support part 22 and the vertical blocking part 23 are welded in three sections.

[0061] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. A snow shield installed on a photovoltaic support, characterized in that: It includes a bracket installed on the photovoltaic support and a snow-blocking component installed on the bracket, wherein the snow-blocking component is arranged on the front side of the front frame of the photovoltaic component, and the snow-blocking component includes an upper dividing net and a lower dividing net, wherein the upper dividing net is used for the first dividing of the snow sliding down from the photovoltaic component and for buffering the snow, and the lower dividing net is used for the second dividing of the snow falling from the upper dividing net.

2. A snow shield installed on a photovoltaic support according to claim 1, characterized in that: The upper dividing net rises from the back to the front in a streamlined manner.

3. A snow shield installed on a photovoltaic support according to claim 2, characterized in that: The upper dividing net includes an upper frame and an upper dividing net body connected to the upper frame, the lower dividing net includes a lower frame and a lower dividing net body connected to the lower frame, and support ribs are provided between the upper frame and the lower frame.

4. A snow shield installed on a photovoltaic support according to claim 3, characterized in that: The mesh number of the lower dividing net body is greater than the mesh number of the upper dividing net body; and / or, the lower dividing net is further provided with dividing ribs for assisting the lower dividing net body in dividing snow.

5. A snow shield installed on a photovoltaic support according to claim 3, characterized in that: The upper layer frame and the lower layer frame are made of high-strength zinc-aluminum-magnesium material; and / or the upper layer dividing net body and the lower layer dividing net body are made of steel wire mesh.

6. A snow shield installed on a photovoltaic support according to claim 1, characterized in that: The photovoltaic support comprises an oblique beam, wherein the oblique beam has a cantilevered portion extending forward beyond the front frame of the photovoltaic assembly, and the bracket is connected to the cantilevered portion by a through-column bolt.

7. A snow shield installed on a photovoltaic support according to claim 6, characterized in that: The bracket includes an oblique mounting portion, a horizontal supporting portion and a vertical blocking portion. The oblique mounting portion is fixed to the lower side of the oblique beam, the horizontal supporting portion is used to support the snow blocking component, and the vertical blocking portion is arranged at the front side of the snow blocking component and divides the accumulated snow that slides over.

8. A snow shield installed on a photovoltaic support according to claim 7, characterized in that: The vertical blocking portion is a triangular prism with one of its sharp corners facing the rear side.

9. The snow shielding device installed on a photovoltaic support according to claim 1, characterized in that: The photovoltaic support comprises a column, and a diagonal brace is provided between the bracket and the column; and / or the bracket is welded to the snow guard assembly or fixed with fasteners.

10. A snow shield installed on a photovoltaic support according to claim 1, characterized in that: The bracket is made of high-strength zinc-aluminum-magnesium material; and / or the bracket is an integrated structure or is welded into a whole in sections.

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