Steel structure fireproof coating spray thickness controller

Abstract

This utility model belongs to the field of fireproof coating technology for steel structures, specifically a fireproof coating thickness controller for steel structures. It includes a coating thickness detection rod with depth detection scale lines printed on its surface. A detection plate is movably mounted on the surface of the rod, with a through-hole in the center of the plate. The plate is inserted into the rod through the hole. A first operating ring is provided on the surface of the plate, and a second operating ring is fixedly mounted on the top of the rod. A locking ring is movably mounted on the rod, and a storage ring is integrally formed at the bottom of the locking ring. A support spring is provided inside the storage ring, and its bottom is connected to the detection plate. This invention has a simple structure and is easy to operate, enabling rapid measurement of the coating thickness during the fireproof coating process on steel structures, thus facilitating precise control of the coating thickness.

Description

Technical Field

[0001] This utility model relates to the field of fireproof spraying technology for steel structures, specifically a thickness controller for fireproof coatings on steel structures. Background Technology

[0002] Fire-retardant coatings for steel structures are functional coatings used to improve the fire resistance of steel structures. They can be classified into different types based on their fire-retardant mechanism and coating thickness. **Intumescent Fire-retardant Coatings for Steel Structures:** These expand and foam at high temperatures, forming a fire-resistant and heat-insulating protective layer. The coating thickness is typically not less than 1.5mm, including ultra-thin types (h≤3mm) and thin types (3mm<h≤7mm). The fire resistance limit is generally 0.5-2.5 hours, and they offer good decorative effects and corrosion resistance. **Non-Intumescent Fire-Retardant Coatings for Steel Structures:** These rely on the non-combustible nature and low thermal conductivity of their materials to form a fire-resistant and heat-insulating protective layer. The coating thickness is not less than 15mm, classified as thick (7mm<h≤44mm). They have a higher fire resistance limit, reaching 2.5-4 hours, and are suitable for buildings with high fire protection requirements. Before application, the steel structure surface must be treated to ensure it is smooth, clean, and free of impurities. The coating must be thoroughly stirred before use. It can be applied by roller or spray. When roller coating, ensure that the application is uniform and that each coat is 0.15-0.3mm thick. When spraying, the pressure must be kept stable at 0.4-0.6MPa to ensure that the coating surface is wet and free of bubbles. Multiple coats are required to achieve the required thickness, especially for thin and ultra-thin coatings.

[0003] Fire-retardant coatings for steel structures are applied to the surface of steel structures by spraying. However, it is inconvenient to measure the thickness of the coating during the spraying process. Judging the thickness solely by visual observation and operational experience can lead to uneven coating thickness, which will affect the fire protection effect on the steel structure. To solve the above problems, this application proposes a coating thickness controller for fire-retardant coatings for steel structures. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] To address the technical problems existing in the background art, this utility model proposes a steel structure fireproof coating spray thickness controller. After the detection plate is raised, the spray thickness detection rod is inserted into the steel structure fireproof coating. By penetrating the distance between the surface of the steel structure fireproof coating and the detection plate, the spray thickness of the steel structure fireproof coating can be judged during spraying. This enables control of the spray thickness of the steel structure fireproof coating during spraying, improving the control accuracy of the steel structure fireproof coating thickness and solving the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To solve the above technical problems, this utility model provides a steel structure fireproof coating spraying thickness controller, including a spraying thickness detection rod, the surface of which is printed with depth detection scale lines;

[0008] The coating thickness detection probe has a movably mounted detection plate on its surface. A insertion hole is provided through the center of the detection plate, and the detection plate is inserted into the coating thickness detection probe through the insertion hole.

[0009] The surface of the detection plate is provided with a first operating ring, and the top of the coating thickness detection rod is fixedly provided with a second operating ring.

[0010] The coating thickness detection probe has a locking ring movably mounted on its surface. The bottom of the locking ring has an integrally formed storage ring. The inner cavity of the storage ring has a support spring, and the bottom of the support spring is connected to the detection plate.

[0011] Preferably, the bottom of the coating thickness detection probe has a pointed structure, so that the coating thickness detection probe can be easily inserted into the fireproof coating of the steel structure.

[0012] Preferably, the first operating ring is symmetrically arranged on the surface of the detection plate, and the first operating ring facilitates the control of the raising and lowering of the detection plate.

[0013] Preferably, the surface of the locking ring is provided with a threaded hole, and a locking screw is threaded into the threaded hole, with the end of the locking screw abutting against the surface of the coating thickness detection rod.

[0014] Preferably, the support spring is compressed and housed in the inner cavity of the housing ring, and the upper surface of the detection plate abuts against the bottom of the housing ring.

[0015] Preferably, a cleaning insert is integrally formed on the lower surface of the detection plate, and a cleaning cotton tube is movably inserted into the inner cavity of the cleaning insert, with the inner wall of the cleaning cotton tube abutting against the surface of the coating thickness detection rod.

[0016] Preferably, a graduated through groove is provided at the connection between the surface of the cleaning insert and the detection plate, and a corresponding groove is provided at the position of the cleaning cotton tube corresponding to the graduated through groove.

[0017] The above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0018] 1. In this utility model, after the detection plate is raised, the coating thickness detection rod is inserted into the fireproof coating of the steel structure. By penetrating the distance between the surface of the fireproof coating of the steel structure and the detection plate, the coating thickness of the fireproof coating of the steel structure can be judged during spraying, which can realize the control of the coating thickness of the fireproof coating of the steel structure during spraying and improve the control accuracy of the coating thickness of the fireproof coating of the steel structure.

[0019] 2. In this utility model, the cleaning tube moves on the coating thickness detection rod, and the cleaning cotton tube installed on the inner wall of the cleaning tube abuts against the surface of the coating thickness detection rod. During the movement, the fireproof material adhering to the surface of the coating thickness detection rod can be wiped off by the cleaning cotton tube, thus preventing the fireproof material from solidifying on the coating thickness detection rod. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the steel structure fireproof coating spraying thickness controller of this utility model;

[0021] Figure 2 This is a cross-sectional structural schematic diagram of the steel structure fireproof coating spraying thickness controller of this utility model;

[0022] Figure 3 This is a schematic diagram of the cleaning structure of the spray thickness detection plug of the steel structure fireproof coating spray thickness controller of this utility model;

[0023] Figure 4 This is a schematic diagram of the supporting spring fixing structure of the steel structure fireproof coating spraying thickness controller of this utility model.

[0024] Figure label:

[0025] 1. Coating thickness detection rod; 2. Depth detection scale line; 3. Detection plate; 4. First operating ring; 5. Second operating ring; 6. Locking ring; 7. Storage ring; 8. Support spring; 9. Locking screw; 10. Cleaning tube; 11. Cleaning cotton tube; 12. Scale through groove; 13. Corresponding groove. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0027] like Figure 1-4 As shown, the steel structure fireproof coating spraying thickness controller proposed in this utility model includes a spraying thickness detection rod 1, and the surface of the spraying thickness detection rod 1 is printed with depth detection scale lines 2.

[0028] The surface of the coating thickness detection rod 1 is movably provided with a detection plate 3, and the detection plate 3 has a through hole in the middle of its surface. The detection plate 3 is inserted into the coating thickness detection rod 1 through the through hole.

[0029] The surface of the detection plate 3 is provided with a first operating ring 4, and the top of the coating thickness detection rod 1 is fixedly provided with a second operating ring 5;

[0030] The surface of the coating thickness detection probe 1 is provided with a locking ring 6, and the bottom of the locking ring 6 is integrally formed with a storage ring 7. The inner cavity of the storage ring 7 is provided with a support spring 8, and the bottom of the support spring 8 is connected to the detection plate 3.

[0031] It should be noted that the locking ring 6 can slide on the coating thickness detection rod 1. After selecting the test height, the locking screw 9 is rotated, and the end of the locking screw 9 abuts against the surface of the coating thickness detection rod 1 to lock the locking ring 6. The thumb is inserted into the second operating finger ring 5, and the index and middle fingers are respectively inserted into the first operating finger ring 4. By lifting the first operating finger ring 4 with the index and middle fingers, the detection plate 3 can be raised, and the surface of the detection plate 3 abuts against the lower surface of the receiving ring 7. The scale through groove 12 can be used to measure the coating thickness. The depth detection scale line 2 on the surface of the coating thickness detection probe 1 is observed to ensure the re-inspection of the steel structure fireproof coating after testing. After the detection plate 3 is lifted, the coating thickness detection probe 1 is inserted into the steel structure fireproof coating. By measuring the distance between the surface of the steel structure fireproof coating and the detection plate 3, the coating thickness of the steel structure fireproof coating can be judged during spraying. This allows for control of the coating thickness during spraying and improves the control accuracy of the steel structure fireproof coating thickness.

[0032] In this embodiment, as Figure 1 As shown, the bottom of the coating thickness detection rod 1 has a pointed structure, which allows the coating thickness detection rod 1 to be easily inserted into the fireproof coating of the steel structure.

[0033] It should be noted that the bottom of the coating thickness detection probe 1 is pointed, which allows the coating thickness detection probe 1 to be easily inserted into the fireproof coating of the steel structure.

[0034] In this embodiment, as Figure 1 As shown, the first operating ring 4 is symmetrically arranged on the surface of the detection plate 3, and the first operating ring 4 facilitates the control of the raising and lowering of the detection plate 3.

[0035] It should be noted that the thumb is inserted into the second operating ring 5, and the index and middle fingers are inserted into the first operating ring 4 respectively. By lifting the first operating ring 4 with the index and middle fingers, the thickness controller can be easily operated.

[0036] In this embodiment, as Figure 4As shown, a threaded hole is provided through the surface of the locking ring 6, and a locking screw 9 is connected to the threaded hole. The end of the locking screw 9 abuts against the surface of the coating thickness detection rod 1. The support spring 8 is compressed and stored in the inner cavity of the storage ring 7, and the upper surface of the detection plate 3 abuts against the bottom of the storage ring 7.

[0037] It should be noted that the support spring 8 is compressed and stored in the inner cavity of the storage ring 7, and the upper surface of the detection plate 3 abuts against the bottom of the storage ring 7, which facilitates the adjustment of thickness measurement.

[0038] In this embodiment, as Figure 3 As shown, a cleaning insert 10 is integrally formed on the lower surface of the detection plate 3, and a cleaning cotton tube 11 is movably inserted into the inner cavity of the cleaning insert 10. The inner wall of the cleaning cotton tube 11 abuts against the surface of the coating thickness detection insert 1.

[0039] It should be noted that the cleaning tube 10 moves on the coating thickness detection rod 1, and the cleaning cotton tube 11 installed on the inner wall of the cleaning tube 10 abuts against the surface of the coating thickness detection rod 1. During the movement, the fireproof material adhering to the surface of the coating thickness detection rod 1 can be wiped off by the cleaning cotton tube 11, so as to prevent the fireproof material from solidifying on the coating thickness detection rod 1.

[0040] In this embodiment, as Figure 3 As shown, a scale through groove 12 is provided through the connection between the surface of the cleaning tube 10 and the detection plate 3, and a corresponding groove 13 is provided through the cleaning cotton tube 11 at the position corresponding to the scale through groove 12.

[0041] It should be noted that after the cleaning cotton tube 11 and the cleaning insert 10 are inserted, the corresponding groove 13 coincides with the scale through groove 12, and the depth detection scale line 2 on the surface of the coating thickness detection insert 1 can be observed through the scale through groove 12.

[0042] The working principle and usage process of this utility model are as follows: The locking ring 6 can slide on the coating thickness detection rod 1. After selecting the test height, the locking screw 9 is rotated, and the end of the locking screw 9 abuts against the surface of the coating thickness detection rod 1 to lock the locking ring 6. The thumb is inserted into the second operating finger ring 5, and the index and middle fingers are respectively inserted into the first operating finger ring 4. By lifting the first operating finger ring 4 with the index and middle fingers, the detection plate 3 can be raised, and the surface of the detection plate 3 abuts against the lower surface of the receiving ring 7. The value on the depth detection scale line 2 on the surface of the coating thickness detection rod 1 can be observed through the scale through groove 12 to ensure the re-inspection of the steel structure fireproof coating after testing. After the detection plate 3 is lifted, the coating thickness detection rod 1 is closed. The rod 1 is inserted into the fireproof coating of the steel structure. By penetrating the distance between the surface of the fireproof coating and the detection plate 3, the thickness of the fireproof coating can be judged during spraying. This allows for control of the thickness of the fireproof coating during spraying, improving the accuracy of thickness control. After thickness detection, the detection plate 3 can be reset under the support of the support spring 8. The cleaning tube 10 moves on the spray thickness detection rod 1. The cleaning cotton tube 11 installed on the inner wall of the cleaning tube 10 abuts against the surface of the spray thickness detection rod 1. During the movement, the fireproof material adhering to the surface of the spray thickness detection rod 1 can be wiped off by the cleaning cotton tube 11, preventing the fireproof material from solidifying on the spray thickness detection rod 1.

[0043] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims or their equivalents.

Claims

1. A steel structure fireproof coating spray thickness controller, comprising a spray thickness detection probe (1), characterized in that, The coating thickness detection probe (1) has depth detection scale lines (2) printed on its surface; The coating thickness detection rod (1) has a detection plate (3) movably provided on its surface. The detection plate (3) has a through hole in the middle of its surface. The detection plate (3) is inserted into the coating thickness detection rod (1) through the through hole. The surface of the detection plate (3) is provided with a first operating ring (4), and the top of the coating thickness detection rod (1) is fixedly provided with a second operating ring (5); The coating thickness detection probe (1) has a locking ring (6) movably provided on its surface. The bottom of the locking ring (6) is integrally formed with a storage ring (7). The inner cavity of the storage ring (7) is provided with a support spring (8). The bottom of the support spring (8) is connected to the detection plate (3).

2. The steel structure fireproof coating spraying thickness controller according to claim 1, characterized in that, The bottom of the coating thickness detection probe (1) is pointed, which allows the coating thickness detection probe (1) to be easily inserted into the fireproof coating of the steel structure.

3. The steel structure fireproof coating spraying thickness controller according to claim 2, characterized in that, The first operating ring (4) is symmetrically arranged on the surface of the detection plate (3), and the first operating ring (4) facilitates the control of the lifting and lowering of the detection plate (3).

4. The steel structure fireproof coating spraying thickness controller according to claim 3, characterized in that, The locking ring (6) has a threaded hole through its surface, and a locking screw (9) is threaded into the threaded hole. The end of the locking screw (9) abuts against the surface of the coating thickness detection rod (1).

5. The steel structure fireproof coating spraying thickness controller according to claim 4, characterized in that, The support spring (8) is compressed and stored in the inner cavity of the storage ring (7), and the upper surface of the detection plate (3) abuts against the bottom of the storage ring (7).

6. The steel structure fireproof coating spraying thickness controller according to claim 5, characterized in that, The detection plate (3) has a cleaning insert (10) integrally formed on its lower surface. A cleaning cotton tube (11) is movably inserted into the inner cavity of the cleaning insert (10). The inner wall of the cleaning cotton tube (11) abuts against the surface of the coating thickness detection rod (1).

7. The steel structure fireproof coating spraying thickness controller according to claim 6, characterized in that, The surface of the cleaning insert (10) is provided with a scale through groove (12) at the connection between it and the detection plate (3), and the cleaning cotton tube (11) is provided with a corresponding groove (13) at the position corresponding to the scale through groove (12).

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