A composite waterproof coating section grating steel frame overall support system

Abstract

The utility model relates to fixed device technical field especially is related to a section grating steel frame whole support system of composite waterproof coating, including the connecting assembly of setting in the both sides of cross H type channel steel, the connecting assembly is used for the first wing board and the second wing board of cross H type channel steel mutual resistance to the package connection of being pressed against each other, four positioning assemblies are set up on the connecting assembly and penetrate, positioning bolt is set up on every positioning assembly, positioning spring is set up on positioning bolt, and positioning assembly is used for the positioning of connecting assembly on H type channel steel, and carries out the preliminary fixation to connecting assembly on H type channel steel, the fixed component of setting is set up on one side of positioning assembly and penetrates the connecting assembly, and fixed bolt is set up on every fixed component, and the pressing piece is set up on fixed bolt, and the fixed component is used for locking and fixing to the first wing board and the second wing board, is favorable to the fixation of the two channel steels of cross non straight angle, and avoids the drilling when H type channel steel fixed, saves time and labour.

Description

Technical Field

[0001] This utility model relates to the field of fixing device technology, and in particular to an integral support system for cross-sectional grid steel frame with composite waterproof coating. Background Technology

[0002] The lattice steel frame is a support structure widely used in tunnel and bridge engineering. The lattice steel frame is a mesh structure formed by multiple intersecting channel steels. It adapts to the shape of the tunnel or bridge to provide initial support. Fixing devices are set at the intersections of the channel steels to fix each channel steel, which can effectively improve the safety and stability of the structure.

[0003] Common channel steel sections are H-shaped and U-shaped. In the initial support process of tunnels, due to the irregular shape of the tunnel, a combination of H-shaped and U-shaped channel steel and plate supports is usually used for targeted support. Therefore, the two channel steels connected to each other are not always perpendicular to each other. It is necessary to adapt to the specific conditions of the tunnel. The two channel steels may cross at an acute or obtuse angle. The existing channel steel fixing mostly uses pipe clamps for fixing. This fixing method can fix various types of channel steel and is relatively universal. However, pipe clamps can only fix channel steel vertically and cannot fix two channel steels that cross at a non-right angle, which has limitations for the initial support of tunnels. In addition, fixing H-shaped channel steel requires drilling, which is time-consuming and labor-intensive. Utility Model Content

[0004] The purpose of this utility model is to provide an overall support system for cross-sectional grid steel frame with composite waterproof coating, which solves the problems of existing fixing devices being unable to fix two cross-section steel bars that are not at right angles in the cross-connection of channel steel, and requiring drilling holes to fix H-shaped channel steel.

[0005] To solve the above-mentioned technical problems, this utility model provides a cross-sectional grid steel frame integral support system with composite waterproof coating, including a grid steel frame for initial support and a cross channel steel fixing device for the grid steel frame.

[0006] The initial support grid steel frame includes an elliptical ring steel frame, a temporary inverted arch steel beam extending laterally within the elliptical ring steel frame, and a longitudinal steel beam extending longitudinally within the elliptical ring steel frame; anchor bolts are also provided on the outside of the initial support grid steel frame; both the temporary inverted arch steel beam and the longitudinal steel beam are cross H-shaped channel steel; the surface of the initial support grid steel frame is coated with a composite waterproof coating;

[0007] The cross channel steel fixing device includes connecting components disposed on both sides of the cross H-shaped channel steel. The connecting components are used to cover and connect the first wing plate and the second wing plate of the cross H-shaped channel steel that abut against each other.

[0008] Four positioning components are installed through the connecting component. Each positioning component is equipped with a positioning bolt and a positioning spring. The positioning components are used to position the connecting component on the H-shaped channel steel and to initially fix the connecting component on the H-shaped channel steel.

[0009] A fixing component is set on one side of the positioning component through the connecting component. Each fixing component is equipped with a fixing bolt and a clamping plate. The fixing component is used to lock and fix the first wing plate and the second wing plate.

[0010] A further improvement of this utility model lies in that the composite waterproof coating is a polymer cement-based waterproof coating. It should be noted that this polymer cement-based waterproof coating is composed of synthetic polymer emulsions, special cement, graded sand, etc., and possesses good elasticity and durability. It is suitable for indoor and outdoor concrete structures, precast concrete structures, cement plastering, brick walls, lightweight brick wall structures, etc.

[0011] A further improvement of this utility model is that positioning components and fixing components are provided at the four corners of the cross H-shaped channel steel connection.

[0012] A further improvement of the present invention is that the connecting assembly further includes a first connecting plate disposed on both sides of the first wing plate and a second connecting plate disposed on both sides of the second wing plate. The first connecting plate is located on top of the second connecting plate, and the first connecting plate and the second connecting plate are staggered with H-shaped channel steel. The thickness of the first connecting plate is the same as the thickness of the first wing plate, and the thickness of the second connecting plate is the same as the thickness of the second wing plate.

[0013] A further improvement of the present invention is that: each of the two first connecting plates is provided with two sets of first positioning holes and first fixing holes, each of the two second connecting plates is provided with two sets of second positioning holes and second fixing holes, and a support plate is provided laterally protruding from the bottom of each of the two second connecting plates. The second connecting plates and the support plate are integrally formed, and the support plate abuts against the inner side of the second wing plate.

[0014] A further improvement of the present invention is that the first positioning hole, the first fixing hole, the second positioning hole, and the second fixing hole are all elongated holes.

[0015] A further improvement of the present invention is that the positioning assembly further includes a positioning bolt that continuously passes through the first positioning hole and the second positioning hole, a positioning spring that passes through the positioning bolt located at the top of the first connecting plate, a washer that is provided at both ends of the positioning spring, the diameter of the washer being larger than the width of the positioning hole, and a positioning nut that is provided on the washer at the upper end of the positioning spring. The positioning nut is used to rotate and compress the positioning spring.

[0016] A further improvement of the present invention is that the fixing component further includes a positioning bolt that continuously passes through the first fixing hole and the second fixing hole, a clamping plate is provided through the fixing bolt located at the top of the first connecting plate, and a fixing nut is provided at the top of the clamping plate. The fixing nut is used to rotate and press down the clamping plate.

[0017] A further improvement of the present invention is that the clamping plate is arranged in a downwardly concave arc shape, one side of the clamping plate presses and fixes the top surface of the first connecting plate, and the other side presses and fixes the inner side of the first wing plate.

[0018] A further improvement of this utility model is that the clamping plate is U-shaped to fit the U-shaped channel steel, the fixing bolt passes through the intersecting U-shaped channel steel, and two opposing clamping plates are passed through the fixing bolt. The two opposing clamping plates are located at the top and bottom of the intersecting U-shaped channel steel, respectively. The clamping plates can rotate around the fixing bolt to adjust the angle of the intersection of the U-shaped channel steel.

[0019] By adopting the above technical solution, this utility model has the following beneficial effects:

[0020] 1. This utility model provides an integrated support system for a cross-section grid steel frame with a composite waterproof coating. The connecting components of the fixing device facilitate non-right-angle connection of intersecting H-shaped channel steels. Specifically, the first connecting plate and the second connecting plate are staggered to fit the H-shaped channel steels. The intersection angle of the first connecting plate and the second connecting plate is the same as the angle of the intersecting H-shaped channel steels. The support plate at the bottom of the second connecting plate abuts against the inner side of the second wing plate, which facilitates the locking connection of the intersecting H-shaped channel steels. The first positioning hole, the first fixing hole, the second positioning hole, and the second fixing hole are all elongated holes. The fixing components and positioning components that pass through the holes have room for adjustment. After the connecting components connect the intersecting H-shaped channel steels, the H-shaped channel steels are further positioned and fixed.

[0021] 2. This utility model provides an integrated support system for a cross-sectional grid steel frame with a composite waterproof coating. The positioning component of the fixing device facilitates the positioning of the connecting component on the H-shaped channel steel and provides initial fixation of the connecting component on the H-shaped channel steel. Specifically, after the connecting component covers and connects the intersecting H-shaped channel steel, the positioning bolts are adjusted according to the angle of the H-shaped channel steel. The positioning spring on the positioning bolt has a downward elastic force, causing the first connecting plate to abut against the second connecting plate. The line connecting the four positioning bolts forms a parallelogram, realizing the positioning of the intersecting H-shaped channel steel. The positioning spring presses down on the first connecting plate, providing initial fixation of the first connecting plate and preventing relative rotation between the first and second connecting plates.

[0022] 3. The present invention provides an integral support system for cross-section grid steel frame with composite waterproof coating. The fixing components of the fixing device are conducive to locking and fixing the intersecting H-shaped channel steel. Specifically, fixing components are set at the four corners of the connection of the intersecting H-shaped channel steel. The clamping plates of the four fixing components are set in a downward concave arc shape. Each clamping plate presses and fixes the first connecting plate and the first wing plate respectively. During the pressing process, the arc shape of the clamping plate tends to flatten, increasing the pressing area and pressing all four corners of the intersecting H-shaped channel steel, thereby enhancing the stability of the connection.

[0023] 4. The present invention provides a composite waterproof coating cross-section grid steel frame integral support system. The connecting component, positioning component and fixing component of the fixing device are combined to stably connect and fix the intersecting H-shaped channel steel. No drilling is required during fixing, and the connection position is not unique, which is conducive to adjusting the connection position of the H-shaped channel steel.

[0024] 5. The present invention provides a composite waterproof coating cross-section grid steel frame integral support system. The clamping plate of the fixing device is U-shaped to adapt to the U-shaped channel steel, which is conducive to the non-right angle connection of the U-shaped channel steel. Specifically, the clamping plate can rotate around the fixing bolt to adjust the angle of the intersection of the U-shaped channel steel. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 A schematic diagram of a cross-sectional grid steel frame integral support system with a composite waterproof coating;

[0027] Figure 2 A schematic diagram of the structure of a cross-sectional grid steel frame integral support system with a composite waterproof coating on H-shaped channel steel;

[0028] Figure 3 A schematic diagram of a cross-sectional grid steel frame integral support system with a composite waterproof coating;

[0029] Figure 4 This is a schematic diagram of the structure of the first connecting plate of this utility model;

[0030] Figure 5 This is a schematic diagram of the structure of the second connecting plate of this utility model;

[0031] Figure 6This is a schematic diagram of the structure of the fixing component of this utility model;

[0032] Figure 7 This is a schematic diagram of the positioning component of this utility model;

[0033] Figure 8 This is a schematic diagram of the U-shaped channel steel and fixing components of this utility model;

[0034] Figure 9 This is a schematic diagram of the structure of the clamping plate of this utility model.

[0035] Reference numerals: 1. H-shaped channel steel; 11. First wing plate; 12. Second wing plate; 2. U-shaped channel steel; 3. Connecting assembly; 31. First connecting plate; 32. Second connecting plate; 33. First positioning hole; 34. Second positioning hole; 35. First fixing hole; 36. Second fixing hole; 37. Support plate; 4. Positioning assembly; 41. Positioning bolt; 42. Positioning spring; 43. Washer; 44. Positioning nut; 5. Fixing assembly; 51. Fixing bolt; 52. Pressure plate; 53. Fixing nut. Detailed Implementation

[0036] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0037] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] The present invention will be further explained below with reference to specific embodiments.

[0040] Example 1

[0041] like Figures 1-7 As shown, this embodiment provides an integrated support system for a cross-section grid steel frame with a composite waterproof coating, including a grid steel frame for initial support and a cross-channel steel fixing device for the grid steel frame.

[0042] The initial support grid steel frame includes an elliptical ring steel frame 100, a temporary inverted arch steel beam 200 extending laterally within the elliptical ring steel frame, and a longitudinal steel beam 300 extending longitudinally within the elliptical ring steel frame; anchor bolts are also provided on the outside of the initial support grid steel frame; both the temporary inverted arch steel beam 200 and the longitudinal steel beam 300 are cross H-shaped channel steel 1; the surface of the initial support grid steel frame is coated with a composite waterproof coating.

[0043] The cross channel steel fixing device includes connecting components 3 disposed on both sides of the cross H-shaped channel steel 1. The connecting components 3 are used to cover and connect the first wing plate 11 and the second wing plate 12 of the cross H-shaped channel steel 1 that abut against each other. Four positioning components 4 are disposed through the connecting components 3. Each positioning component 4 is provided with a positioning bolt 41 and a positioning spring 42. The positioning components 4 are used to position the connecting components 3 on the H-shaped channel steel 1 and to initially fix the connecting components 3 on the H-shaped channel steel 1. A fixing component 5 is disposed through the connecting components 3 on one side of the positioning components 4. Each fixing component 5 is provided with a fixing bolt 51 and a clamping plate 52. The fixing components 5 are used to lock and fix the first wing plate 11 and the second wing plate 12. Positioning components 4 and fixing components 5 are provided at the four corners of the connection of the cross H-shaped channel steel 1. The connecting component 3, positioning component 4 and fixing component 5 of the fixing device are combined to stably connect and fix the cross H-shaped channel steel 1. No drilling is required during fixing, and the connection position is not unique, which is conducive to adjusting the connection position of the H-shaped channel steel 1.

[0044] like Figures 2-7As shown, in this embodiment, the connecting component 3 further includes a first connecting plate 31 respectively disposed on both sides of the first wing plate 11 and a second connecting plate 32 respectively disposed on both sides of the second wing plate 12. The first connecting plate 31 and the second connecting plate 32 have the same structure. The first connecting plate 31 is located on top of the second connecting plate 32, and the first connecting plate 31 and the second connecting plate 32 are staggered to accommodate the H-shaped channel steel 1. The thickness of the first connecting plate 31 is the same as the thickness of the first wing plate 11, so that the first wing plate 11 and the first connecting plate 31 are on the same horizontal plane, which is beneficial to stable connection. The thickness of the second connecting plate 32 is the same as the thickness of the second wing plate 12, so that the second wing plate 12 and the second connecting plate 32 are on the same horizontal plane. Each of the two first connecting plates 31 has two sets of first positioning holes 33 and first fixing holes 35, and each of the two second connecting plates 32 has two sets of second positioning holes 34 and second fixing holes 36. A support plate 37 protrudes laterally from the bottom of each of the two second connecting plates 32. The second connecting plate 32 and the support plate 37 are integrally formed, and the support plate 37 abuts against the inner side of the second wing plate 12. The first positioning holes 33, first fixing holes 35, second positioning holes 34, and second fixing holes 36 are all elongated holes. The fixing component 5 and positioning component 4, which pass through the holes, have room for adjustment. After the connecting component 3 connects the cross H-shaped channel steel 1, it further positions and fixes the H-shaped channel steel 1. The connecting component 3 of the fixing device is conducive to the non-right-angle connection of the cross H-shaped channel steel 1. Specifically, the first connecting plate 31 and the second connecting plate 32 are adapted to the staggered distribution of the H-shaped channel steel 1. The intersection angle of the first connecting plate 31 and the second connecting plate 32 is the same as the angle of the cross H-shaped channel steel 1. The support plate 37 at the bottom of the second connecting plate 32 abuts against the inner side of the second wing plate 12, which is conducive to the locking connection of the cross H-shaped channel steel 1.

[0045] In this embodiment, the composite waterproof coating is a polymer cement-based waterproof coating. It should be noted that polymer cement-based waterproof coatings are composed of synthetic polymer emulsions, special cement, graded sand, etc., and possess good elasticity and durability. They are suitable for indoor and outdoor concrete structures, precast concrete structures, cement plastering, brick walls, lightweight brick wall structures, etc.

[0046] like Figures 3-5 , Figure 7As shown, in this embodiment, the positioning component 4 further includes a positioning bolt 41 that continuously passes through the first positioning hole 33 and the second positioning hole 34. A positioning spring 42 is provided through the positioning bolt 41 located at the top of the first connecting plate 31. Washers 43 are provided at both ends of the positioning spring 42. The diameter of the washers 43 is larger than the width of the positioning hole. The washers 43 limit the positioning spring 42. A positioning nut 44 is provided on the washers 43 at the upper end of the positioning spring 42. The positioning nut 44 is used to rotate and compress the positioning spring 42. The positioning component 4 of the fixing device facilitates the positioning of the connecting component 3 on the H-shaped channel steel 1 and provides initial fixation for the connecting component 3 on the H-shaped channel steel 1. Specifically, after the connecting component 3 covers and connects the intersecting H-shaped channel steel 1, the positioning bolts 41 are adjusted according to the angle of the H-shaped channel steel 1. The positioning springs 42 on the positioning bolts 41 have a downward elastic force, causing the first connecting plate 31 to abut against the second connecting plate 32. The lines connecting the four positioning bolts 41 form a parallelogram, thereby achieving the positioning of the intersecting H-shaped channel steel 1. The positioning springs 42 press down on the first connecting plate 31, providing initial fixation for the first connecting plate 31 and preventing relative rotation between the first connecting plate 31 and the second connecting plate 32.

[0047] like Figures 3-6 As shown, in this embodiment, the fixing component 5 further includes a positioning bolt 41 that continuously passes through the first fixing hole 35 and the second fixing hole 36. A clamping plate 52 is provided through the fixing bolt 51 located at the top of the first connecting plate 31. The clamping plate 52 can rotate on the fixing bolt 51. A fixing nut 53 is provided on the top of the clamping plate 52. The fixing nut 53 is used to rotate and press down the clamping plate 52. The clamping plate 52 is arranged in a downwardly concave arc shape. One side of the clamping plate 52 presses and fixes the top surface of the first connecting plate 31, and the other side presses and fixes the inner side of the first wing plate 11. The fixing components 5 of the fixing device are conducive to locking and fixing the cross H-shaped channel steel 1. Specifically, fixing components 5 are provided at the four corners of the connection of the cross H-shaped channel steel 1. The clamping plates 52 of the four fixing components 5 are arranged in a downward concave arc shape. Each clamping plate 52 clamps and fixes the first connecting plate 31 and the first wing plate 11 respectively. During the clamping process, the arc shape of the clamping plate 52 tends to flatten, increasing the clamping area and clamping all four corners of the cross H-shaped channel steel 1, thereby enhancing the stability of the connection.

[0048] Example 2

[0049] like Figures 8-9As shown, the difference between this embodiment and embodiment 1 is that the clamping plate 52 is U-shaped to fit the U-shaped channel steel 2, which is beneficial for non-right-angle connection of the U-shaped channel steel 2. During use, since the U-shaped channel steel 2 has no wing plates, it is necessary to drill holes to fix the U-shaped channel steel 2. Therefore, there is no need for the connecting component 3 and the positioning component 4. In use, the fixing bolt 51 passes through the intersecting U-shaped channel steel 2, and two opposing clamping plates 52 are installed through the fixing bolt 51. The two opposing clamping plates 52 are located at the top and bottom of the intersecting U-shaped channel steel 2, respectively. The clamping plates 52 can rotate around the fixing bolt 51 to adjust the angle of the intersection of the U-shaped channel steel 2. After the angle is adjusted, the clamping plates 52 are pressed down by rotating the fixing nut 53 to fix the clamping plates 52 and the U-shaped channel steel 2 between the clamping plates 52.

[0050] The working principle of the technical solution provided by this utility model is as follows:

[0051] The operator rotates the positioning nut 44 and the fixing nut 53 to release the positioning spring 42 and the clamping plate 52 from pressing and fixing the first connecting plate 31. The operator moves the two second connecting plates 32 so that they are relatively far apart until the distance between the two support plates 37 is greater than the width of the second wing plate 12. The operator places the entire fixing device on the second wing plate 12 and then moves the two second connecting plates 32 so that they are relatively close until the two support plates 37 abut against the inner side of the second wing plate 12. The operator rotates the positioning nut 44 to compress the positioning spring 42. The positioning spring 42 presses down on the first connecting plate 31 to initially position and fix the first connecting plate 31, preventing the first connecting plate 31 and the second connecting plate 32 from rotating relative to each other.

[0052] The operator rotates the clamping plate 52 so that it is completely within the top surface of the first connecting plate 31 to prevent obstruction of the placed H-shaped channel steel 1. The operator places the H-shaped channel steel 1 onto the second connecting plate 32 between the two first connecting plates 31, adjusts the intersection angle of the cross H-shaped channel steel 1, and then adjusts the angle of the first connecting plate 31 so that the side of the first connecting plate 31 abuts against the first wing plate 11. The operator rotates the clamping plate 52 so that it is perpendicular to the first wing plate 11, and rotates the fixing nut 53 so that one side of the clamping plate 52 presses and fixes the top surface of the first connecting plate 31, and the other side presses and fixes the inner side of the first wing plate 11, thus completing the fixing of the cross H-shaped channel steel 1.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A composite waterproof coating-coated cross-sectional grid steel frame integral support system, characterized in that, This includes the initial support grating steel frame and the cross channel steel fixing device for the grating steel frame; The initial support grid steel frame includes an elliptical ring steel frame and a temporary inverted arch steel beam extending laterally within the elliptical ring steel frame, as well as a longitudinal steel beam extending longitudinally within the elliptical ring steel frame; a locking anchor is also provided on the outside of the initial support grid steel frame; both the temporary inverted arch steel beam and the longitudinal steel beam are cross H-shaped channel steel (1); the surface of the initial support grid steel frame is coated with a composite waterproof coating; The cross channel steel fixing device includes a connecting component (3) disposed on both sides of the cross H-shaped channel steel (1). The connecting component (3) is used to cover and connect the first wing plate (11) and the second wing plate (12) of the cross H-shaped channel steel (1) that abut against each other. Four positioning components (4) are installed through the connecting component (3). Each positioning component (4) is provided with a positioning bolt (41) and a positioning spring (42) is provided on the positioning bolt (41). The positioning components (4) are used to position the connecting component (3) on the H-shaped channel steel (1) and to initially fix the connecting component (3) on the H-shaped channel steel (1). A fixing component (5) is set on one side of the positioning component (4) through the connecting component (3). Each fixing component (5) is provided with a fixing bolt (51) and a clamping plate (52) is provided on the fixing bolt (51). The fixing component (5) is used to lock and fix the first wing plate (11) and the second wing plate (12).

2. The composite waterproof coating cross-section grid steel frame integral support system according to claim 1, characterized in that, Positioning components (4) and fixing components (5) are provided at the four corners of the cross H-shaped channel steel (1) connection.

3. The composite waterproof coating cross-section grid steel frame integral support system according to claim 1, characterized in that, The connecting assembly (3) also includes a first connecting plate (31) disposed on both sides of the first wing plate (11) and a second connecting plate (32) disposed on both sides of the second wing plate (12). The first connecting plate (31) is located on top of the second connecting plate (32), and the first connecting plate (31) and the second connecting plate (32) are adapted to the H-shaped channel steel (1) and are staggered. The thickness of the first connecting plate (31) is the same as the thickness of the first wing plate (11), and the thickness of the second connecting plate (32) is the same as the thickness of the second wing plate (12).

4. The composite waterproof coating cross-section grid steel frame integral support system according to claim 3, characterized in that, Two first connecting plates (31) each have two sets of first positioning holes (33) and first fixing holes (35), and two second connecting plates (32) each have two sets of second positioning holes (34) and second fixing holes (36). The bottom of the two second connecting plates (32) is provided with a support plate (37) protruding laterally. The second connecting plates (32) and the support plate (37) are integrally formed, and the support plate (37) abuts against the inner side of the second wing plate (12).

5. The composite waterproof coating cross-section grid steel frame integral support system according to claim 1, characterized in that, The positioning assembly (4) also includes a positioning bolt (41) that continuously passes through the first positioning hole (33) and the second positioning hole (34). A positioning spring (42) is provided through the positioning bolt (41) located at the top of the first connecting plate (31). Washers (43) are provided at both ends of the positioning spring (42). The diameter of the washers (43) is greater than the width of the positioning hole. A positioning nut (44) is provided on the washers (43) at the upper end of the positioning spring (42). The positioning nut (44) is used to rotate and compress the positioning spring (42).

6. The composite waterproof coating cross-section grid steel frame integral support system according to claim 1, characterized in that, The fixing assembly (5) also includes a positioning bolt (41) that continuously passes through the first fixing hole (35) and the second fixing hole (36). A clamping plate (52) is provided through the fixing bolt (51) located on the top of the first connecting plate (31). A fixing nut (53) is provided on the top of the clamping plate (52). The fixing nut (53) is used to rotate and press down the clamping plate (52).

7. The composite waterproof coating cross-section grid steel frame integral support system according to claim 1, characterized in that, The clamping plate (52) is arranged in a downward concave arc shape. One side of the clamping plate (52) presses and fixes the top surface of the first connecting plate (31), and the other side presses and fixes the inner side of the first wing plate (11).

8. The composite waterproof coating cross-section grid steel frame integral support system according to claim 1, characterized in that, The clamping plate (52) is U-shaped to fit the U-shaped channel steel (2). The fixing bolt (51) passes through the intersecting U-shaped channel steel (2). Two opposing clamping plates (52) are installed on the fixing bolt (51). The two opposing clamping plates (52) are located at the top and bottom of the intersecting U-shaped channel steel (2) respectively. The clamping plate (52) can rotate around the fixing bolt (51) to adjust the angle of the intersection of the U-shaped channel steel (2).

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