A non-intumescent fireproof coating flat coating tool and its construction method

Abstract

This invention discloses a flat coating fixture for non-intumescent fire-retardant coatings and its application method. The fixture includes a clamping part and a connector. The connector is mounted on the clamping part, which clamps the component to be coated. The surfaces of the clamping part and the connector serve as the standard surface for coating, with the location of the standard surface corresponding to the thickness of the fire-retardant coating. Simultaneously, the standard surface supports a scraper that slides on it. The standard surface formed by the clamping part and the connector is continuous and corresponds to the contour of the cross-section of the component to be coated. By using multiple flat coating fixtures in combination, a phased working area for the fire-retardant coating can be formed, allowing for convenient control of the coating thickness and surface smoothness. During the coating process, the fixture provides support before the fire-retardant coating adhesion is complete, preventing the coating from slipping or deforming due to its own weight before initial setting. After coating, the shape is regular and more aesthetically pleasing, with minimal cracks, hollows, and depressions.

Description

Technical Field

[0001] This invention belongs to the field of fire-retardant coating technology, specifically relating to a flat coating tool for non-intumescent fire-retardant coatings and its application method. Background Technology

[0002] Steel is a non-combustible building material with properties such as earthquake resistance and bending resistance. In practical applications, steel can increase the load-bearing capacity of buildings, meet the aesthetic requirements of architectural design, and avoid the inflexibility and tensile limitations of building materials such as concrete. Therefore, steel is favored by the construction industry and is commonly used in single-story buildings, multi-story buildings, skyscrapers, factories, warehouses, waiting rooms, and airport terminals. However, as a building material, steel also has some unavoidable drawbacks in terms of fire resistance. Its mechanical properties, such as yield point, tensile strength, and modulus of elasticity, decrease sharply with increasing temperature.

[0003] Steel structures typically lose their load-bearing capacity and undergo significant deformation at temperatures between 450 and 650°C, leading to bending of steel columns and beams. As a result, excessive deformation renders them unusable. The fire resistance rating of unprotected steel structures is generally around 15 minutes. This time also depends on the rate at which the components absorb heat. To overcome the fire resistance deficiencies of steel structures in practical applications, fireproofing treatment is necessary. The purpose is to increase the fire resistance rating of the steel structure to the limits specified in the design code. This prevents the steel structure from rapidly heating up and deforming and collapsing during a fire. Methods include using heat-insulating and fire-resistant materials to block direct flame exposure, slowing down heat transfer, and delaying the temperature rise and strength weakening of the steel structure.

[0004] The most important supporting structure in steel structure buildings is H-beams or I-beams. Fire protection is achieved using thick-film fire-retardant coatings for steel structures, also known as non-intumescent fire-retardant coatings. The main component is inorganic insulating material, which has a granular surface and low density. The coating does not expand when heated. Due to its excellent thermal insulation properties, it is also called a thermally insulating fire-retardant coating. Its fire-retardant mechanism utilizes the inherent good thermal insulation properties of the coating to prevent the transfer of heat from a fire to the steel. At high temperatures, it forms a dense glaze-like substance that effectively isolates oxygen and reflects heat, slowing down the temperature rise of the steel structure and providing fire protection.

[0005] H-beams have multiple surfaces and protruding structures such as flanges. It is difficult to control the thickness, smooth the paint surface, and support the paint before it hardens by relying entirely on manual painting. Fire-retardant coatings require a substrate free of dust, mud, sand, oil, and other contaminants. Waterproof coatings should be complete and free of defects such as missed areas, misapplied coatings, hollow areas, unevenness, floating slurry, and powdering. Furthermore, fire-retardant coatings, as a surface layer, also have a certain decorative function. Current manual painting methods cannot meet these requirements, so a simple and easy-to-use painting aid is needed. Summary of the Invention

[0006] To overcome the aforementioned shortcomings, the inventors of this invention, through long-term exploration, experimentation, and continuous reform and innovation, have proposed a flat-coating fixture and its application method for non-intumescent fire-retardant coatings. This method allows for the use of multiple flat-coating fixtures to create staged work areas for the fire-retardant coating, facilitating easy control of coating thickness and surface smoothness. During coating, it provides support before the coating's adhesion is complete, preventing slippage and deformation due to its own weight before initial setting. The finished coating is neat and aesthetically pleasing, with minimal cracking, hollowing, or denting. This flat-coating fixture is easy to use, requiring only clamping and tightening bolts. Loosening the bolts allows for clamping, and tightening them again is sufficient. Replacing the bolts with wing nuts allows for manual tightening, further enhancing convenience. By moving one flat-coating fixture to alternate work areas, changing work areas is extremely convenient, simplifying operation and significantly improving work efficiency and quality.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a flat coating fixture for non-intumescent fire-retardant coating is provided, which includes a clamping part and a connector. The connector is installed on the clamping part, and the clamping part is clamped on the part to be coated. The surfaces of the clamping part and the connector serve as the standard surface for coating. The position of the standard surface corresponds to the thickness of the fire-retardant coating. At the same time, the standard surface supports the scraper that slides on it. The standard surface formed by the clamping part and the connector is continuous and corresponds to the contour of the cross-section of the part to be coated.

[0008] A further preferred embodiment of the flat coating fixture for non-intumescent fire-retardant coating according to the present invention is as follows: it includes two clamping parts and a connector. The clamping parts are clamped on the flange plate on the same side of an H-beam. The connector is disposed between the two clamping parts and is located inside the groove of the H-beam. The outer surface of the connector serves as a reference plane, and its height is consistent with the coating plane. The thickness of the fixed clamping plate and the movable clamping plate of the clamping parts are equal to the outer coating thickness and the inner coating thickness, respectively. The clamping parts include a fixed clamping plate, a movable clamping plate, and a clamping screw. The movable clamping plate has a rotating fulcrum in the middle, a clamping stud in the middle, and a spring mounting post at the rear end of the fixed clamping plate. Springs are installed on both the clamping stud and the spring mounting post. The movable clamping plate has clamping stud mounting holes and spring mounting post mounting holes corresponding to the positions of the clamping stud and the spring mounting post. After the clamping stud and the spring mounting post pass through the clamping stud mounting holes and the spring mounting post mounting holes on the movable clamping plate, clamping bolts are installed on the clamping studs to press the movable clamping plate onto the fixed clamping plate to form a clamping part.

[0009] A further preferred technical solution of the flat coating fixture for non-intumescent fireproof coating according to the present invention is: the rotation fulcrum is a protruding plate located from the middle to the rear of the fixed clamping plate, the front end of the protruding plate acts as a fulcrum, and the upper plane of the protruding plate serves as a limiting plane to ensure that the clamping gap between the fixed clamping plate and the movable clamping plate is equal to the thickness of the flange of the H-shaped plate.

[0010] A further preferred technical solution of the flat coating fixture for non-intumescent fireproof coating according to the present invention is as follows: two fixtures are used as a set, clamping each other in an upper and lower position. When clamping, the outer reference surfaces of the fixed clamping plate and the movable clamping plate are parallel to the flange plate of the H-beam. When holding, the upper and lower reference surfaces of the fixed clamping plate and the movable clamping plate are perpendicular to the flange plate of the H-beam. The reference surface of the connecting piece is parallel to the bottom surface of the groove of the H-beam.

[0011] A further preferred technical solution of the flat coating fixture for non-intumescent fire retardant coating according to the present invention is: another set of fixtures is set at the same height on the opposite side, at which time the front ends of the movable clamps of the two fixtures at the same height on the opposite side are close to or in contact.

[0012] A further preferred technical solution of the flat coating fixture for non-intumescent fire retardant coating according to the present invention is: a notch is provided at the front end of the inner side of the fixing clamp, and corresponding mounting protrusions are provided at both ends of the connector. The mounting protrusions are provided with fixing holes, and the mounting protrusions are fixed by bolts after extending into the notch.

[0013] A further preferred technical solution of the flat coating fixture for non-intumescent fireproof coating according to the present invention is that the fixed clamp, the movable clamp, and the connecting parts are all formed by cutting and welding channel steel, with the outer surface of the channel steel as the reference surface of the coating plane.

[0014] A method for applying a non-intumescent fire-retardant coating using a flat coating application tool, comprising the following steps:

[0015] 1) Tooling data adjustment and assembly; Select the corresponding clamping part's fixed clamping plate, movable clamping plate thickness, and front end position according to the coating thickness requirements; determine the selection notch position based on the coating thickness at the bottom of the groove; select the length of the connector; and install the connector on the two clamping parts.

[0016] 2) Clamping fixtures: A set of flat coating fixtures are installed on the upper and lower ends of the front side of the H-beam, and another set of flat coating fixtures is selectively installed at the same height on the rear side. When installing all the flat coating fixtures, the outer reference surface of the fixed clamping plate and the movable clamping plate is required to be parallel to the flange plate of the H-beam, and the reference surface of the connecting parts is parallel to the bottom surface of the H-beam.

[0017] 3) Filling and leveling of paint; fill the gap between the upper and lower flat coating fixtures with fire-retardant paint, and use a scraper to press it onto the surface of the fixture for positioning and leveling. The paint coverage includes the inner side of the front end of one side of the I-beam. When another set of flat coating fixtures is installed at the same height on the rear side, the paint coverage includes the inner sides of the front and rear sides and the left and right sides of the I-beam.

[0018] 4) Tooling position adjustment: Remove one of the upper flat coating tools and install it below the lower flat coating tool to form a new working space;

[0019] 5) Repeat steps 3) and 4) until the initial coating of the current H-beam is completed;

[0020] 6) Gap filling: After the initial coating has hardened, the gaps left by the tooling are filled, with the existing coating thickness at the top and bottom ends as the reference.

[0021] 7) Complete all painting of the current H-beam, replace the working H-beam, and repeat steps 1)-7).

[0022] According to the method for flat application of non-intumescent fire-retardant coating of the present invention, a further preferred technical solution is as follows: In step S2, the clamping bolts of the two clamping parts are first loosened, the rear end of the clamping parts is pressed down to open the front end of the clamping parts, the two clamping parts are clamped on the flange plate and the front end of the movable clamping plate is attached to the bottom surface of the groove of the H-beam, the clamping plate is fixed and the movable clamping plate is perpendicular to the H-beam, and then the clamping bolts are tightened so that the reference plane is parallel to the flange plate.

[0023] According to the flat coating application method of the non-intumescent fireproof coating of the present invention, a further preferred technical solution is: in step 3), the scraper used for flat coating is mounted on a fixed clamping plate, a movable clamping plate, or a connector of a tooling in an upper and lower position, wherein the fixed clamping plate corresponds to the left and right sides of the H-beam, the movable clamping plate corresponds to the inner side of the groove of the H-beam, and the connector corresponds to the bottom surface of the groove of the H-beam.

[0024] Compared with the prior art, the technical solution of the present invention has the following advantages / benefits:

[0025] 1. By using multiple flat coating tools, the fire retardant coating can be applied in stages, allowing for convenient control of the coating thickness and surface smoothness. During the application of the fire retardant coating, support is provided to prevent the coating from slipping or deforming due to its own weight before initial setting. After coating, the shape is regular and more aesthetically pleasing, with virtually no cracks, hollows, or depressions. The coating efficiency of the fire retardant coating is greatly improved, and the control of thickness and surface smoothness is simple.

[0026] 2. This flat coating fixture is easy to use, requiring only clamping and tightening of the clamping bolts. Simply loosen the clamping bolts to clamp, and then tighten them again. Replacing the clamping bolts with wing nuts allows for direct manual tightening, making it even more convenient. To complete the current work surface, simply move one flat coating fixture to alternate between work surfaces. Changing work surfaces is extremely convenient and simple to operate, greatly improving work efficiency and quality. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the flat coating fixture for a non-intumescent fire-retardant coating according to the present invention.

[0029] Figure 2 This is a schematic diagram of the clamping part of a flat coating fixture for a non-intumescent fire-retardant coating according to the present invention.

[0030] Figure 3 This is a schematic diagram of the fixing clamp and spring of a flat coating tool for a non-intumescent fireproof coating according to the present invention.

[0031] Figure 4This is a schematic diagram of the movable clamping plate of a flat coating fixture for a non-intumescent fire-retardant coating according to the present invention.

[0032] Figure 5 This is a schematic diagram of the connecting parts of a flat coating tool for a non-intumescent fire-retardant coating according to the present invention.

[0033] Figure 6 This is a schematic diagram of the installation structure of the two sets of flat coating fixtures of the present invention on H-beams.

[0034] The markings in the figure are as follows: 1. Clamping part 101. Fixed clamping plate 1011. Notch 102. Movable clamping plate 1021. Protruding plate 1022. Rotation fulcrum 103. Clamping stud 1031. Clamping bolt 104. Spring mounting post 105. Spring 2. Connector 201. Mounting protrusion 202. Fixing hole 3. H-beam 4. Standard surface. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions in the embodiments of this invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of this invention, not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this invention. Therefore, the detailed description of the embodiments of this invention provided below is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

[0037] Example:

[0038] like Figure 1-5As shown, a flat coating fixture for non-intumescent fire-retardant coatings includes a clamping part 1 and a connecting part 2. The connecting part 2 is mounted on the clamping part 1, which clamps the component to be coated. The surfaces of the clamping part 1 and the connecting part 2 serve as a standard surface 4 for coating. The position of the standard surface 4 corresponds to the thickness of the fire-retardant coating. Simultaneously, the standard surface 4 supports the scraper sliding on it. The standard surface 4 formed by the clamping part 1 and the connecting part 2 is continuous and corresponds to the contour of the cross-section of the component to be coated. "Corresponding" means maintaining parallel or partial rotation. The sides of the clamping part 1 and the connecting part 2 should serve as supporting surfaces for the fire-retardant coating. The standard surface controls the thickness of the fire-retardant coating and supports the scraper sliding on it, achieving rapid coating of the fire-retardant coating while meeting the thickness and surface smoothness requirements. The fixture consists of two clamping parts 1 and one connecting piece 2. The two clamping parts correspond to two different flange plates on the same side of the H-beam, which can be directly clamped for easy clamping. Both ends serve as force points, making the installation more stable and reliable. The clamping parts 1 are clamped on the flange plates on the same side of the H-beam 3. The connecting piece 2 is set between the two clamping parts 1. The connecting piece 2 is located inside the groove of the H-beam 3. The outer surface of the connecting piece 2 serves as a reference surface, and its height is consistent with the paint coating plane. The thickness of the fixed clamping plate 101 and the movable clamping plate 102 of the clamping parts 1 is equal to the outer coating thickness and the inner coating thickness, respectively. That is, the outer surface of the connecting piece 2 and the outer surfaces of the fixed clamping plate 101 and the movable clamping plate 102 are used as reference surfaces when applying fireproof coating. A flat tool is used to form a smoothing tool between the fixtures. The smoothing tool is generally a strip or a scraper used for construction.

[0039] The clamping part 1 includes a fixed clamping plate 101, a movable clamping plate 102, a clamping stud 103, a spring 105 mounting post 104, and a spring 105. A rotation fulcrum 1022 is provided in the middle of the movable clamping plate 102. The clamping stud 103 is provided in the middle of the fixed clamping plate 101. The spring 105 mounting post 104 is provided at the rear end of the fixed clamping plate 101. Springs 105 are mounted on both the clamping stud 103 and the spring 105 mounting post 104. The movable clamping plate 102 has mounting holes for the clamping stud 103 and the spring 105 mounting post 104 corresponding to their positions. The clamping stud 103 and the spring 105 mounting post 104 pass through the mounting holes for the clamping stud 103 and the spring 105 mounting post 104 on the movable clamping plate 102. Then, clamping bolts are installed on clamping studs 103 to press the movable clamping plate 102 onto the fixed clamping plate 101 to form clamping part 1. The two clamping parts 1 are used to clamp the two flange plates on the same side of the H-beam 3, and the height is consistent. A connector 2 is installed in the middle of the two clamping parts 1. The front end of the connector 2 contacts the bottom plane of the H-beam 3, and the front end of the clamping part 1 is flush with the front end of the connector 2 and also contacts the bottom plane of the groove of the H-beam 3, so that the entire clamping fixture has better support. The combination formed by the side of the connector 2 and the side of the fixed clamping plate 101 can completely match the shape of the groove of the H-beam 3. In this way, when the fireproof coating is applied, the fixture can provide better support for the fireproof coating and avoid the fireproof coating from slipping or deforming under its own weight before it has solidified.

[0040] The rotation fulcrum 1022 is a protruding plate 1021 located from the middle to the rear of the fixed clamping plate 101. The front end of the protruding plate 1021 acts as a fulcrum, and the upper plane of the protruding plate 1021 serves as a limiting plane to ensure that the clamping gap between the fixed clamping plate 101 and the movable clamping plate 102 is equal to the thickness of the flange of the H-shaped plate. Of course, this is just a more reasonable structure of the present invention. In fact, any limiting structure that can ensure that the clamping gap between the fixed clamping plate 101 and the movable clamping plate 102 is equal to the thickness of the flange of the H-shaped plate is acceptable. The clamp can have a rotating shaft in the middle, and the limiting structure can also be a limiting post or other structures.

[0041] Two fixtures are used as a set, clamping the H-beam 3 from top to bottom. When clamping, the outer reference surfaces of the fixed clamping plate 101 and the movable clamping plate 102 are parallel to the flange plate of the H-beam 3. The upper and lower reference surfaces of the fixed clamping plate 101 and the movable clamping plate 102 are perpendicular to the flange plate of the H-beam 3. The reference surface of the connector 2 is parallel to the bottom surface of the groove of the H-beam 3. Of course, the vertical or parallel relationship during installation is not strictly required. Construction personnel only need to ensure that it is roughly correct. Since this invention uses reference surfaces for coating, and the reference surfaces are all related to height, slight gaps and offsets are acceptable as long as the fireproof coating does not leak. These can be corrected in the next gap filling operation. The vertical distance between the two fixtures is the maximum distance that will not slip or deform when the fireproof coating is applied.

[0042] Another set of fixtures is set at the same height on the opposite side. At this time, the front ends of the movable clamping plates 102 of the two fixtures at the same height on the opposite side are close to or in contact, forming a complete reference plane of the side of the H-beam 3 (i.e. the outer side of a certain flange plate). The two fixtures set opposite each other occupy half of the distance.

[0043] A notch 1011 is provided at the front end of the inner side of the fixing plate 101, and corresponding mounting protrusions 201 are provided at both ends of the connector 2. Fixing holes 202 are provided on the mounting protrusions 201. After the mounting protrusions 201 extend into the notch 1011, they are fixed by bolts, forming a U-shape after fixing.

[0044] The fixed clamp 101, the movable clamp 102, and the connector 2 are all formed by cutting and welding channel steel. The outer surface of the channel steel is used as the reference surface for the coating plane (in fact, only the outer side surface corresponding to the bottom of the groove is used, that is, the height of the side surface determines the height of the reference surface). When the clamping part 1 is installed, the opening surfaces of the channel steel are installed opposite each other. The same type of channel steel with staggered side walls can be used for installation, or the fixed clamp 101 or the movable clamp 102 can be slightly larger and accommodated inside the channel. The groove of the connector 2 faces the bottom surface of the H-beam 3.

[0045] like Figure 6 As shown, a flat coating application method for a non-intumescent fire-retardant coating is based on the aforementioned flat coating fixture for a non-intumescent fire-retardant coating. The flat coating fixture is as follows: Figure 1-5 As shown, the steps include:

[0046] 1) Tooling data adjustment and assembly; Select the corresponding clamping part 1 fixed clamping plate 101, movable clamping plate 102 thickness and front end position when clamping according to the coating thickness requirements. Determine the position of notch 1011 according to the coating thickness of the bottom of the groove. Select the length of connector 2 and install connector 2 on the two clamping parts 1. In addition, during use, ensure that each standard surface is flat and does not deform to avoid problems or failures in thickness control.

[0047] 2) Clamping fixtures: A set of flat coating fixtures is installed at the upper and lower ends of the front side of the H-beam 3, respectively. Selectively, another set of flat coating fixtures is installed at the same height on the rear side. When installing all the flat coating fixtures, the outer reference surfaces of the fixed clamping plate 101 and the movable clamping plate 102 are required to be parallel to the flange plate of the H-beam 3, and the reference surface of the connector 2 is parallel to the bottom surface of the H-beam 3. When using two sets of clamping fixtures, the fireproof coating of all surfaces of the H-beam 3 can be completed in the current working section. Of course, multiple sets can be set sequentially on the surface of an H-beam 3 to form a continuous working section, which is more efficient.

[0048] 3) Filling and leveling of paint; fill the gap between the upper and lower flat coating fixtures with fire-retardant paint, and use a scraper to press it onto the surface of the fixture for positioning and leveling. The paint coverage includes the inner side of the front end of one side of the I-beam. When another set of flat coating fixtures is installed at the same height on the rear side, the paint coverage includes the inner sides of the front and rear sides and the left and right sides of the I-beam.

[0049] 4) Tooling position adjustment: Remove one of the upper flat coating tools and install it below the lower flat coating tool to form a new working space. Alternate cycles to complete the fireproof coating of the entire H-beam 3.

[0050] 5) Repeat steps 3) and 4) until the initial coating of the current H-beam 3 is completed;

[0051] 6) Gap filling: After the initial coating has hardened, the gaps left by the tooling are filled, with the existing coating thickness at the top and bottom ends as the reference.

[0052] 7) Complete all painting of the current H-beam 3, replace it with the H-beam 3 that needs to be painted, and repeat steps 1)-7).

[0053] In step S2, first loosen the clamping bolts of the two clamping parts 1, press down the rear end of the clamping part 1 to open the front end of the clamping part 1, clamp the two clamping parts 1 on the flange plate and make the front end of the movable clamping plate 102 fit with the bottom surface of the groove of the H-beam 3, fix the clamping plate 101, and make the movable clamping plate 102 perpendicular to the H-beam 3. Then tighten the clamping bolts so that the reference plane is parallel to the flange plate.

[0054] In step 3), the scraper used for smoothing is mounted on a fixed clamping plate 101, a movable clamping plate 102, or a connector 2 of a tooling in an upper or lower position. The fixed clamping plate 101 corresponds to the left and right sides of the H-beam 3, the movable clamping plate 102 corresponds to the inner side of the groove of the H-beam 3, and the connector 2 corresponds to the bottom surface of the groove of the H-beam 3.

[0055] Working principle: By setting two (i.e., one set) of flat coating fixtures on the same side, a working space is formed between the two fixtures in the groove of the H-beam to be coated with fire-retardant paint. This space serves to hold and restrict the fire-retardant paint, allowing it to be smoothed in one pass using a scraper rack on the two fixtures, ensuring a uniform thickness and preventing cracks. If another set of flat coating fixtures is set at the same height on the opposite side, a working space can also be created on the side of the H-beam, enabling rapid coating. Similarly, multiple flat coating fixtures can be continuously set at intervals on a single H-beam for continuous operation, making it even more convenient.

[0056] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0057] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0058] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0059] The above are merely preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be considered as limitations on the present invention, and the scope of protection of the present invention should be determined by the scope defined in the claims. For those skilled in the art, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A flat coating tooling for non-intumescent fireproof coatings, characterized in that, It includes a clamping part and a connecting part. The connecting part is installed on the clamping part. The clamping part clamps on the component to be constructed. The surfaces of the clamping part and the connecting part serve as the standard surfaces for painting. The position where the standard surface is located corresponds to the thickness of the fireproof coating. At the same time, the standard surface plays a supporting role for the scraping plate sliding on it. The standard surface formed by the clamping part and the connecting part is continuous and corresponds to the contour of the cross-section of the component to be constructed. A tooling includes two clamping parts and one connecting part. The clamping parts clamp on the flange plates on the same side of the H-shaped steel. A connecting part is arranged between the two clamping parts. The connecting part is located inside the groove of the H-shaped steel. The outer surface of the connecting part serves as the reference surface and its height is kept consistent with the coating plane of the paint. The thicknesses of the fixed clamping plate and the movable clamping plate of the clamping part are respectively equal to the outer coating thickness and the inner coating thickness. The clamping part includes a fixed clamping plate, a movable clamping plate, a pressing stud, a spring mounting post, and a spring. A rotation fulcrum is arranged in the middle of the movable clamping plate. A pressing stud is arranged in the middle of the fixed clamping plate. A spring mounting post is arranged at the rear end of the fixed clamping plate. Springs are installed on both the pressing stud and the spring mounting post. Pressing stud mounting holes and spring mounting post mounting holes corresponding to the positions of the pressing stud and the spring mounting post are arranged on the movable clamping plate. After the pressing stud and the spring mounting post pass through the pressing stud mounting holes and the spring mounting post mounting holes on the movable clamping plate, a pressing bolt is installed on the pressing stud to press the movable clamping plate against the fixed clamping plate to form the clamping part.

2. The flat coating tooling for a non-intumescent fireproof coating according to claim 1, characterized in that, The rotation fulcrum is a protruding plate at the middle to rear position of the fixed clamping plate. The front end of the protruding plate serves as the fulcrum. The plane on the upper part of the protruding plate serves as the limiting plane to ensure that the clamping gap between the fixed clamping plate and the movable clamping plate is equal to the thickness of the flange plate of the H-shaped plate.

3. The flat coating tooling for a non-intumescent fireproof coating according to claim 1, characterized in that, Two toolings are used in a set and are clamped respectively in the upper and lower positions. When clamping, the outer reference surfaces of the fixed clamping plate and the movable clamping plate are parallel to the flange plate of the H-shaped steel. When clamping, the upper and lower reference surfaces of the fixed clamping plate and the movable clamping plate are perpendicular to the flange plate of the H-shaped steel. The reference surface of the connecting part is parallel to the bottom surface of the groove of the H-shaped steel.

4. The flat coating tooling for a non-intumescent fireproof coating according to claim 3, characterized in that, Another set of toolings is correspondingly arranged at the same height on the opposite side. At this time, the front ends of the movable clamping plates of the two toolings at the same height on the opposite side are close to or in contact.

5. The flat coating tooling for a non-intumescent fireproof coating according to claim 1, characterized in that, A notch is arranged at the front end inside the fixed clamping plate. Corresponding mounting protrusions are arranged at both ends of the connecting part. Fixing holes are arranged on the mounting protrusions. After the mounting protrusions extend into the notch, they are fixed by bolts.

6. The flat coating tooling for a non-intumescent fireproof coating according to claim 1, characterized in that, The fixed clamping plate, the movable clamping plate, and the connecting part are all formed by cutting and welding channel steels, with the outer surface of the channel steel as the reference surface of the coating plane.

7. A flat coating construction method for a non-intumescent fireproof coating, characterized in that, It is carried out based on the flat coating tooling for a non-intumescent fireproof coating according to any one of claims 1-6. Its steps include: 1) Data adjustment and assembly of the tooling; select the thicknesses of the fixed clamping plate and the movable clamping plate of the corresponding clamping part and the position reached by the front end during clamping according to the coating thickness requirement, determine the position of the selected notch according to the coating thickness at the bottom of the groove, select the length of the connecting part, and install the connecting part on the two clamping parts; 2) Clamping tooling: A set of flat coating toolings are respectively installed at the upper and lower ends of the front side of the H-shaped steel, and another set of flat coating toolings are selectively installed at the corresponding positions of the same height on the rear side. When all the flat coating toolings are installed, it is required that the outer reference surfaces of the fixed clamping plate and the movable clamping plate are parallel to the flange plate of the H-shaped steel, and the reference surface of the connecting part is parallel to the bottom surface of the H-shaped steel; 3) Coating filling and leveling: Fireproof coating is filled between the upper and lower flat coating toolings, and a squeegee is used to press tightly on the surface of the tooling for positioning and leveling. The coating coverage includes the inner side surface of the front end of one side of the I-shaped steel; when another set of flat coating toolings are installed at the corresponding positions of the same height on the rear side, the coating coverage includes the inner side surfaces of the front and rear sides and the left and right side surfaces of the I-shaped steel; 4) Tooling position adjustment: Remove one flat coating tooling at the upper end and install it below the flat coating tooling at the lower end to form a new working space; 5) Repeat steps 3) and 4) until the preliminary painting of the current H-shaped steel is completed; 6) Gap filling: After the coating in the preliminary painting is initially hardened, fill the gaps left by the tooling, and use the existing coating thickness at the upper and lower ends as the reference during filling; 7) Complete all the painting of the current H-shaped steel, replace the working H-shaped steel, and repeat steps 1)-7).

8. The flat coating construction method of a non-intumescent fireproof coating according to claim 7, characterized in that, In step 2), first loosen the compression bolts of the two clamping parts, press down the rear end of the clamping part to make the front end of the clamping part open, clamp the two clamping parts on the flange plate and make the front end of the movable clamping plate fit with the bottom surface of the groove of the H-shaped steel, the fixed clamping plate and the movable clamping plate are perpendicular to the H-shaped steel, and then tighten the compression bolts to make the reference surface parallel to the flange plate.

9. A flat coating construction method for a non-intumescent fireproof coating according to claim 7, characterized in that The squeegee used for leveling in step 3) is horizontally placed on the fixed clamping plate or the movable clamping plate or the connecting part of the tooling at the upper and lower positions, where the fixed clamping plate corresponds to the side surfaces of the left and right sides of the H-shaped steel, the movable clamping plate corresponds to the inner side surface of the groove of the H-shaped steel, and the connecting part corresponds to the bottom surface of the groove of the H-shaped steel.

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