Grid

Abstract

The utility model relates to the technical field of architectural decoration, and discloses a grille which comprises stand columns, the cross beam is fixedly connected to one side of the stand column, and the axis of the cross beam and the axis of the stand column intersect; the grating blade comprises a first blade part and a second blade part which are connected with each other, one side of the first blade part is connected to the side, away from the stand column, of the cross beam, and the other side of the first blade part is connected with one side of the second blade part. The grille blade is formed by connecting the first blade part and the second blade part, the situation that the extension length of a single grille blade part is too large is avoided, the strength of the grille blade can be enhanced, the problem that the strength of the grille blade is weak is effectively solved, the stability of the grille can be improved, the quality of the grille is guaranteed, and the service life of the grille blade is prolonged. In addition, the structure of the two blade parts can reduce the weight of the single blade part, and carrying and mounting are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of building decoration, and particularly relates to a grille. Background Art

[0002] With the continuous progress of social economy, people's living standards have been continuously improved, and the requirements for construction projects are getting higher and higher. People not only pay attention to the quality of construction projects, but also strive for the construction projects to have sufficient aesthetics. The building facade decoration part has a great impact on the main image of the construction project. Doing a good job in the facade decoration design can greatly improve the aesthetics. The building facade decoration is also an important component of urban environmental art and an intuitive reflection of the urban appearance. Therefore, the building facade decoration has received more and more attention. More and more building facades use grilles as decorations to increase the aesthetics of the building facades.

[0003] However, since the grille blades usually need to extend a certain distance from the building surface, the strength of the grille blades in the outward extension direction is weak, resulting in the grille blades being prone to deformation, which affects the structural quality and aesthetics. Summary of the Utility Model

[0004] In view of this, the utility model provides a grille to solve the problem of weak strength of the grille blades.

[0005] In a first aspect, the utility model provides a grille, comprising: a column; a cross beam fixedly connected to one side of the column, and the axis of the cross beam is arranged to intersect with the axis of the column; a grille blade, comprising a connected first blade part and a second blade part, one side of the first blade part is connected to the side of the cross beam far from the column, and the other side of the first blade part is connected to one side of the second blade part.

[0006] Beneficial effects: By fixedly connecting the cross beam to the column and connecting the grille blade to the cross beam, the fixation of the grille blade is realized, and by setting the grille blade to be composed of two components, namely the first blade part and the second blade part, it is avoided that the extension length of a single grille blade part in the horizontal plane along the direction away from the cross beam is too large, which can strengthen the strength of the grille blade, effectively solve the problem of weak strength of the grille blade, improve the stability of the grille, ensure the quality of the grille, and the structure of the two blade parts can also reduce the weight of a single blade part, which is convenient for handling and installation.

[0007] In an optional embodiment, the first blade part and the second blade part are detachably connected.

[0008] Beneficial effects: Facilitate the disassembly and assembly of the first blade part and the second blade part, and thus facilitate the assembly and later maintenance and replacement of the grille blade.

[0009] In an alternative embodiment, a recessed portion is formed on one side of the first blade portion close to the second blade portion, and a protruding portion is formed on one side of the second blade portion close to the first blade portion, and the protruding portion is engaged with the recessed portion.

[0010] Advantageous effects: By providing a recessed portion on the first blade portion and a protruding portion on the second blade portion, and through the cooperation of the recessed portion and the protruding portion, the positioning between the first blade portion and the second blade portion is achieved, the positioning accuracy between the two is improved, thereby facilitating the assembly of the first blade portion and the second blade portion, improving the installation accuracy, saving the installation time, and improving the work quality and work efficiency.

[0011] In an alternative embodiment, a first mounting hole is further formed on one side of the first blade portion close to the second blade portion, a second mounting hole is further formed on one side of the second blade portion close to the first blade portion, and the grille further includes a first connecting member, and the first connecting member sequentially passes through the first mounting hole and the second mounting hole to connect the first blade portion and the second blade portion.

[0012] Advantageous effects: By forming a first mounting hole on the first blade portion and a second mounting hole corresponding to the first mounting hole on the second blade portion, the first connecting member sequentially passes through the first mounting hole and the second mounting hole, and the first blade portion and the second blade portion can be connected by using the connecting member. The structure of the mounting hole is simple, the cooperation mode between the connecting member and the mounting hole is relatively common, the operation is convenient, and the cost is low.

[0013] In an alternative embodiment, the number of the recessed portions is two, the number of the protruding portions is two, the two protruding portions correspond to the two recessed portions one by one, the first mounting hole is located between the two recessed portions, and the second mounting hole is located between the two protruding portions.

[0014] Advantageous effects: By providing two recessed portions and two protruding portions respectively, each recessed portion cooperates with its corresponding protruding portion, and the cooperation of the two sets of concave-convex structures further increases the cooperation accuracy between the first blade portion and the second blade portion, and can prevent relative displacement between the two blade portions during the installation process, thereby further ensuring the assembly accuracy and improving the installation quality; and, by arranging the first mounting hole between the two recessed portions and the second mounting hole between the two protruding portions, the stress condition of the first connecting member is optimized, which is beneficial to extending the service life.

[0015] In an alternative embodiment, the width of the grille blade gradually decreases in the direction away from the cross beam.

[0016] Beneficial effects: By setting the width of the grille blades to gradually decrease in the direction away from the cross beam, on the one hand, the weight of the grille blades can be reduced, the cost can be saved, and the deformation of the grille blades in the vertical direction caused by gravity can be reduced. On the other hand, the aesthetics and artistic features of the grille can be increased, and the user experience can be improved.

[0017] In an alternative embodiment, the cross-section of the first blade portion is an isosceles trapezoid, the cross-section of the second blade portion is an isosceles trapezoid, the upper base of the cross-section of the first blade portion corresponds to the lower base of the cross-section of the second blade portion, and the size of the upper base of the cross-section of the first blade portion is equal to the size of the lower base of the cross-section of the second blade portion.

[0018] Beneficial effects: By setting both the first blade portion and the second blade portion to be isosceles trapezoids, the aesthetics of the grille is further increased. And by setting the upper base of the trapezoidal cross-section of the first blade portion to correspond to and have the same size as the lower base of the trapezoidal cross-section of the second blade portion, the overall cross-section of the grille blade is also an isosceles trapezoid, and the connection between the first blade portion and the second blade portion has a smooth transition, with a neat appearance.

[0019] In an alternative embodiment, the grille further includes: a connecting plate, the connecting plate includes a first connecting portion and a second connecting portion, the first connecting portion is fixedly connected to the first surface of the cross beam, and the second connecting portion is detachably connected to the first blade portion.

[0020] Beneficial effects: By setting the first connecting portion of the connecting plate to be connected to the cross beam and the second connecting portion to be connected to the first blade portion, the cross beam and the first blade portion are connected through the connecting plate, that is, the grille blade is connected to the cross beam through the connecting plate. And by setting the second connecting portion to be detachably connected to the first blade portion, the detachable connection between the grille blade and the cross beam is realized, which is convenient for disassembly and assembly and easy to operate.

[0021] In an alternative embodiment, the connecting plate is in an "L" shape, the first surface of the cross beam is a plane on the cross beam perpendicular to the axial direction of the column, and the projection of the second connecting portion on the first surface of the cross beam extends a preset distance beyond the cross beam.

[0022] Beneficial effects: By setting the connecting plate to be in an "L" shape and the first surface of the cross beam to be the upper surface, it is convenient for the connecting plate to be respectively connected to the cross beam and the first blade portion. And by setting the second connecting portion to extend a preset distance beyond the cross beam, there is a certain distance between the first blade portion and the cross beam, providing enough operating space for the installation process, avoiding direct contact between the grille blade and the cross beam, and reducing wear.

[0023] In an alternative embodiment, the number of the columns is multiple, and the multiple columns are spaced apart along the axial direction of the cross beam; the number of the grille blades is multiple, and the multiple grille blades are spaced apart along the axial direction of the cross beam.

[0024] Beneficial effects: By arranging multiple columns at intervals on the cross beam and arranging multiple grille blades at intervals, the overall structure of the grille is formed, which can not only increase the aesthetic appearance and artistic features of the building, but also achieve ventilation, effectively improve air circulation, keep the indoor air fresh. In addition, it can also provide sunshade and heat insulation, block direct sunlight, reduce the indoor temperature, and increase privacy. Description of the Drawings

[0025] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 It is a schematic structural diagram of a grille according to an embodiment of the present invention;

[0027] Figure 2 For Figure 1 a partial enlarged schematic view of A in

[0028] Figure 3 For Figure 1 a sectional view taken along the B-B direction in

[0029] Figure 4 For Figure 3 a partial enlarged schematic view of C in

[0030] Description of the Reference Numerals:

[0031] 1, column; 2, cross beam; 3, grille blade; 301, first blade part; 311, recessed part; 302, second blade part; 312, protruding part; 401, first connecting member; 402, second connecting member; 5, connecting plate; 501, first connecting part; 502, second connecting part. Detailed Embodiments

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present utility model.

[0033] The following will describe the embodiments of the present utility model in conjunction with Figures 1 to 4 , the embodiments of the present utility model will be described.

[0034] According to an embodiment of the present utility model, on the one hand, a grille is provided, including: a column 1, a cross beam 2, and grille blades 3. The cross beam 2 is fixedly connected to one side of the column 1, and the axis of the cross beam 2 is arranged intersecting with the axis of the column 1; the grille blades 3 include a connected first blade part 301 and a second blade part 302. One side of the first blade part 301 is connected to the side of the cross beam 2 away from the column 1, and the other side of the first blade part 301 is connected to one side of the second blade part 302.

[0035] Applying the grille of this embodiment, by fixedly connecting the cross beam 2 to the column 1 and connecting the grille blades 3 to the cross beam 2, the fixation of the grille blades 3 is achieved. And by setting the grille blades 3 to be composed of two components, namely the first blade part 301 and the second blade part 302, it is avoided that the extension length of a single grille blade part in the horizontal plane in the direction away from the cross beam 2 is too large, thereby strengthening the strength of the grille blades 3, effectively solving the problem of weak strength of the grille blades, improving the stability of the grille, ensuring the quality of the grille, and the structure of the two blade parts can also reduce the weight of a single blade part, facilitating handling and installation. Among them, the column 1, the cross beam 2, the first blade part 301, and the second blade part 302 are arranged in sequence along Figure 1 and Figure 3 the first direction indicated by the arrow in, that is, the grille blades 3 of this embodiment can avoid the extension length of a single blade part in the first direction from being too large, thereby increasing the strength of the grille blades 3 in the first direction.

[0036] It should be noted that as a building facade decoration element, the grille can increase the aesthetics and artistic features of the building. The side of the column 1 away from the cross beam 2 is suitable for connecting to the building to fix the grille. Preferably, the column 1 is arranged vertically, that is, the column 1 extends along the vertical direction, and the axis of the cross beam 2 is perpendicular to the axis of the column 1, that is, the cross beam 2 extends along the horizontal direction, thereby increasing the stability of the grille structure. The grille blades 3 are arranged vertically. Among them, the vertical direction refers to Figure 3 the "vertical direction" indicated by the arrow in, and the horizontal direction refers to Figure 1The "horizontal direction" indicated by the arrow. It can be understood that as an alternative embodiment, the axis of the crossbeam 2 and the axis of the column 1 can also be in a non-perpendicular intersection state, and the column 1 can also fix the crossbeam 2.

[0037] Preferably, the column 1 is a steel column and the crossbeam 2 is a steel crossbeam. The steel structure is firm and reliable, with high safety. Further combined with Figure 1 and Figure 3 As shown, the size specification of the steel column is □200×100×8mm, that is, the length L1 of the cross-section of the column 1 is 200mm, the width W1 is 100mm, and the thickness H1 is 8mm; the size specification of the steel crossbeam is □80×80×5mm, that is, both the length L2 and the width W2 of the cross-section of the crossbeam 2 are 80mm, and the thickness is 5mm.

[0038] Preferably, the crossbeam 2 is connected to the short-side of the cross-section of the column 1, with strong bending resistance and good stress performance. Further preferably, the crossbeam 2 and the column 1 are fixedly connected by fillet welding, which is convenient for operation and has high reliability.

[0039] Optionally, the material of the grille blade 3 is aluminum alloy, and the topcoat is sprayed with fluorocarbon paint. The aluminum alloy is light in weight, which is convenient for transportation and installation.

[0040] In one embodiment, the number of columns 1 is multiple, and the multiple columns 1 are spaced along the axial direction of the crossbeam 2; the number of grille blades 3 is multiple, and the multiple grille blades 3 are spaced along the axial direction of the crossbeam 2. By arranging multiple columns 1 and multiple grille blades 3 at intervals on the crossbeam 2 to form the overall structure of the grille, it can not only increase the beauty and artistic features of the building, but also achieve ventilation, effectively improve air circulation, keep the indoor air fresh. In addition, it can also provide sunshade and heat insulation, block direct sunlight, reduce the indoor temperature, and increase privacy. Preferably, the multiple columns 1 are equally spaced along the axial direction of the crossbeam 2, and the multiple grille blades 3 are equally spaced along the axial direction of the crossbeam 2, which further increases the beauty of the grille and is convenient for processing and installation. Further preferably, the multiple columns 1 and the multiple grille blades 3 correspond one by one, which is convenient for processing and installation.

[0041] It should be noted that each grille blade 3 is composed of a first blade part 301 and a second blade part 302. Hereinafter, a grille unit on the grille is taken as an example for illustration. Among them, a grille unit refers to a grille node composed of a column 1, a grille blade 3 and a section of crossbeam 2.

[0042] In one embodiment, the first blade part 301 and the second blade part 302 are detachably connected, which is convenient for the disassembly and assembly of the first blade part 301 and the second blade part 302, and thus convenient for the assembly and later maintenance and replacement of the grille blade 3.

[0043] In one embodiment, a recess 311 is formed on one side of the first blade portion 301 close to the second blade portion 302, and a protrusion 312 is formed on one side of the second blade portion 302 close to the first blade portion 301. The protrusion 312 is engaged with the recess 311. By providing the recess 311 on the first blade portion 301 and the protrusion 312 on the second blade portion 302, the positioning between the first blade portion 301 and the second blade portion 302 is achieved through the cooperation of the recess 311 and the protrusion 312, improving the positioning accuracy therebetween, thereby facilitating the assembly of the first blade portion 301 and the second blade portion 302, improving the installation accuracy, saving the installation time, and improving the work quality and work efficiency.

[0044] In addition, in other embodiments, a protrusion 312 may also be formed on one side of the first blade portion 301 close to the second blade portion 302, and a recess 311 may be formed on one side of the second blade portion 302 close to the first blade portion 301. Similarly, the positioning between the first blade portion 301 and the second blade portion 302 can be achieved through the cooperation of the protrusion 312 and the recess 311.

[0045] In one embodiment, a first mounting hole is further formed on one side of the first blade portion 301 close to the second blade portion 302, and a second mounting hole is further formed on one side of the second blade portion 302 close to the first blade portion 301. The grille further includes a first connecting member 401 which sequentially passes through the first mounting hole and the second mounting hole to connect the first blade portion 301 and the second blade portion 302. By forming the first mounting hole on the first blade portion 301 and the second mounting hole corresponding to the first mounting hole on the second blade portion 302, the first connecting member 401 can sequentially pass through the first mounting hole and the second mounting hole to connect the first blade portion 301 and the second blade portion 302 by using the connecting member. The mounting hole structure is simple, and the cooperation mode between the connecting member and the mounting hole is relatively common, with convenient operation and low cost. Optionally, the first connecting member 401 is a bolt, which has high strength, low cost and is convenient for disassembly and assembly, preferably an M6 bolt; it can be understood that as an alternative embodiment, the first connecting member 401 may also be a pin, with a simple structure and convenient operation.

[0046] In one embodiment, the number of the recessed portions 311 is two, and the two recessed portions 311 are arranged at intervals. The number of the protruding portions 312 is two, and the two protruding portions 312 correspond to the two recessed portions 311 one by one. The first mounting hole is located between the two recessed portions 311, and the second mounting hole is located between the two protruding portions 312. By setting the number of the recessed portions 311 and the protruding portions 312 to be two each, each recessed portion 311 cooperates with its corresponding protruding portion 312. The cooperation of the two sets of concave-convex structures further increases the fitting accuracy between the first blade portion 301 and the second blade portion 302, and can prevent relative displacement between the two blade portions during the installation process, thereby further ensuring the assembly accuracy and improving the installation quality. Moreover, by arranging the first mounting hole between the two recessed portions 311 and the second mounting hole between the two protruding portions 312, the stress condition of the first connecting member 401 is optimized, which is beneficial to extending the service life.

[0047] In one embodiment, the recessed portion 311 is in a groove shape and is a female groove, and the protruding portion 312 is adapted to the shape of the female groove and is a male groove. When assembling the grille blade 3, first connect the male and female grooves of the first blade portion 301 and the second blade portion 302, and then insert a bolt through the mounting hole in the middle of the male and female grooves to connect the two blade portions by the bolt.

[0048] In one embodiment, the width of the grille blade 3 gradually decreases in the direction away from the cross beam 2. By setting the width of the grille blade 3 to gradually decrease in the direction away from the cross beam 2, on the one hand, the weight of the grille blade 3 can be reduced, the cost can be saved, and the deformation of the grille blade 3 in the vertical direction caused by gravity can be reduced. On the other hand, the aesthetics and artistic features of the grille can be increased, and the user experience can be improved. Among them, the width refers to the dimension in the "horizontal direction" indicated by the arrow in Figure 1 the middle.

[0049] In one embodiment, the cross section of the first blade portion 301 is an isosceles trapezoid, and the cross section of the second blade portion 302 is an isosceles trapezoid. The upper base of the cross section of the first blade portion 301 corresponds to the lower base of the cross section of the second blade portion 302, and the size of the upper base of the cross section of the first blade portion 301 is equal to the size of the lower base of the cross section of the second blade portion 302. By setting both the first blade portion 301 and the second blade portion 302 to be isosceles trapezoids, the aesthetics of the grille is further increased. Moreover, by setting the upper base of the trapezoidal cross section of the first blade portion 301 to correspond to the lower base of the trapezoidal cross section of the second blade portion 302 and the sizes to be equal, the overall cross section of the grille blade 3 is also an isosceles trapezoid, and the connection between the first blade portion 301 and the second blade portion 302 has a smooth transition, and the appearance is neat.

[0050] Specifically, the cross-section of the first blade portion 301 is a first trapezoid. The dimension of the upper base of the first trapezoid is L3 = 35 mm, the dimension of the lower base is L4 = 50 mm, the height H3 is 200 mm, and the thickness W3 is 3 mm. The cross-section of the second blade portion 302 is a second trapezoid. The dimension of the upper base of the second trapezoid is L5 = 20 mm, and the dimension of the lower base is equal to that of the upper base of the first trapezoid, which is 35 mm. The height H4 is 150 mm, and the thickness W4 is 3 mm.

[0051] In addition, in other embodiments, the grid blade 3 can also be designed into a structure with equal width everywhere, that is, the cross-section of the grid blade 3 is rectangular.

[0052] In one embodiment, the grid further includes: a connecting plate 5. The connecting plate 5 includes a first connecting portion 501 and a second connecting portion 502. The first connecting portion 501 is fixedly connected to the first surface of the cross beam 2, and the second connecting portion 502 is detachably connected to the first blade portion 301. By setting the first connecting portion 501 of the connecting plate 5 to be connected to the cross beam 2 and the second connecting portion 502 to be connected to the first blade portion 301, the cross beam 2 is connected to the first blade portion 301 through the connecting plate 5, that is, the grid blade 3 is connected to the cross beam 2 through the connecting plate 5. And by setting the second connecting portion 502 to be detachably connected to the first blade portion 301, the detachable connection between the grid blade 3 and the cross beam 2 is realized, which is convenient for disassembly and assembly and easy to operate.

[0053] In one embodiment, the connecting plate 5 is in an "L" shape. The first surface of the cross beam 2 is a plane perpendicular to the axial direction of the column 1 on the cross beam 2. The projection of the second connecting portion 502 on the first surface of the cross beam 2 extends a preset distance beyond the cross beam 2. Further combined with Figure 1 and Figure 3 、 Figure 4 shown, the first surface is the upper surface of the cross beam 2. The second connecting portion 502 extends beyond the cross beam 2 along the "first direction" indicated by the arrow in Figure 3 . The preset distance refers to the distance L6 between the cross beam 2 and the first blade portion 301 in Figure 1 and Figure 3 . By setting the connecting plate 5 to be in an "L" shape and the first surface of the cross beam 2 to be the upper surface, it is convenient to connect the connecting plate 5 to the cross beam 2 and the first blade portion 301 respectively. And by setting the second connecting portion 502 to extend a preset distance beyond the cross beam 2, there is a certain distance between the first blade portion 301 and the cross beam 2, providing enough operating space for the installation process, avoiding direct contact between the grid blade 3 and the cross beam 2, and reducing wear. Among them, the upper surface refers to the surface in the direction of "up" indicated by the arrow in Figure 3 . Specifically, the preset distance L6 is 5 mm.

[0054] In one embodiment, a third mounting hole is provided in the second connecting portion 502, and a fourth mounting hole is provided on the side of the first blade portion 301 close to the cross beam 2. The grille further includes a second connecting member 402. The second connecting member 402 sequentially passes through the third mounting hole and the fourth mounting hole to connect the second connecting portion 502 and the first blade portion 301. By providing a third mounting hole in the second connecting portion 502 and a fourth mounting hole corresponding to the third mounting hole in the first blade portion 301, and the second connecting member 402 sequentially passes through the third mounting hole and the fourth mounting hole, the first blade portion 301 of the connecting plate 5 can be connected by using the second connecting member 402. The mounting hole structure is simple, the matching manner between the connecting member and the mounting hole is relatively common, the operation is convenient, and the cost is low. Optionally, the second connecting member 402 is a bolt. The bolt has high strength, low cost and is convenient for disassembly and assembly, and is preferably an M6 bolt. It can be understood that as an alternative embodiment, the second connecting member 402 can also be a pin, with a simple structure and convenient operation.

[0055] Preferably, the connecting plate 5 is an angle steel, and the angle steel structure is stable and has high reliability. Specifically, the angle steel is arranged on the upper surface of the steel cross beam on the side far from the column 1. One limb of the angle steel lies flat on the steel cross beam and is connected to it by fillet welding, and the other limb faces upward and extends 5 mm from the surface of the cross beam 2 in the first direction, and is connected to the grille blade 3 by bolts. Specifically, the specification of the angle steel is L50×50×5 mm, and the length is 50 mm.

[0056] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A grille, characterized in that: include: Column (1); A crossbeam (2) is fixedly connected to one side of the column (1), and the axis of the crossbeam (2) is arranged to intersect with the axis of the column (1); The grille blade (3) comprises a first blade portion (301) and a second blade portion (302) connected to each other, wherein one side of the first blade portion (301) is connected to a side of the crossbeam (2) away from the column (1), and the other side of the first blade portion (301) is connected to one side of the second blade portion (302).

2. The grille according to claim 1, characterized in that The first blade portion (301) and the second blade portion (302) are detachably connected.

3. The grille according to claim 2, characterized in that A recessed portion (311) is configured on one side of the first blade portion (301) close to the second blade portion (302), and a raised portion (312) is configured on one side of the second blade portion (302) close to the first blade portion (301), wherein the raised portion (312) matches the recessed portion (311).

4. The grille according to claim 3, characterized in that A first mounting hole is also provided on a side of the first blade portion (301) close to the second blade portion (302), and a second mounting hole is also provided on a side of the second blade portion (302) close to the first blade portion (301). The grille also includes a first connecting member (401), and the first connecting member (401) passes through the first mounting hole and the second mounting hole in sequence to connect the first blade portion (301) and the second blade portion (302).

5. The grille according to claim 4, characterized in that The number of the recessed portions (311) is two, the number of the raised portions (312) is two, the two raised portions (312) correspond one to one with the two recessed portions (311), the first mounting hole is located between the two recessed portions (311), and the second mounting hole is located between the two raised portions (312).

6. The grille according to claim 1, characterized in that The width of the grille blades (3) gradually decreases in a direction away from the cross beam (2).

7. The grille according to claim 6, characterized in that The cross section of the first blade portion (301) is an isosceles trapezoid, and the cross section of the second blade portion (302) is an isosceles trapezoid. The upper base of the cross section of the first blade portion (301) corresponds to the lower base of the cross section of the second blade portion (302), and the size of the upper base of the cross section of the first blade portion (301) is equal to the size of the lower base of the cross section of the second blade portion (302).

8. The grille according to claim 1, characterized in that The grille further comprises: a connecting plate (5), the connecting plate (5) comprising a first connecting portion (501) and a second connecting portion (502), the first connecting portion (501) being fixedly connected to the first surface of the crossbeam (2), and the second connecting portion (502) being detachably connected to the first blade portion (301).

9. The grille according to claim 8, characterized in that The connecting plate (5) is in an "L" shape, the first surface of the crossbeam (2) is a plane on the crossbeam (2) perpendicular to the axial direction of the column (1), and the projection of the second connecting portion (502) on the first surface of the crossbeam (2) extends out of the crossbeam (2) by a preset distance.

10. The grid according to any one of claims 1 to 9, characterized in that The number of the columns (1) is multiple, and the multiple columns (1) are distributed at intervals along the axial direction of the crossbeam (2); The grille blades (3) are multiple in number, and the multiple grille blades (3) are distributed at intervals along the axial direction of the crossbeam (2).

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