A self-propelled steel structure fireproof coating thickness detection device

Abstract

This invention discloses a self-propelled steel structure fireproof coating thickness detection device, relating to the field of steel structure technology. It includes a detection trolley that travels along an H-beam. The H-beam includes two sets of symmetrically arranged wing plates, both sets having identical structural dimensions. A web plate is fixedly positioned at the center between the two sets of wing plates, and the web plate is perpendicular to both wing plates. The detection trolley includes a first traveling section and a second traveling section, which have identical structures and are symmetrically arranged on both sides of the web plate. During its self-propelled movement along the H-beam, the detection trolley can perform real-time detection of the fireproof coating thickness on the web plate using detection modules deployed on the first and second traveling sections. This enables comprehensive detection of the protective coating thickness from bottom to top. Based on the detection results, if the coating thickness is abnormal, subsequent processing can be easily carried out, thereby ensuring the fireproof stability of the H-beam.

Description

Technical Field

[0001] This invention relates to the field of steel structure technology, and in particular to a self-propelled steel structure fireproof coating thickness detection device. Background Technology

[0002] Steel structures are widely used in modern high-rise buildings, large-span factories, and infrastructure due to their high strength, light weight, and short construction period. To ensure the load-bearing capacity of steel structures in high-temperature fire environments and prevent them from rapidly softening and failing at critical temperatures (typically 550℃-600℃), their surfaces must be coated with fire-retardant paint to achieve the designed fire resistance limit. Fire-retardant paints are mainly divided into two categories: intumescent (including ultra-thin and thin-coat types) and non-intumescent (thick-coat types). Intumescent fire-retardant paints expand and foam when heated, forming an insulating layer. The thickness of this layer directly affects the expansion effect and fire resistance performance; therefore, accurate measurement of the coating thickness is a crucial step in controlling the quality of construction.

[0003] Currently, the thickness inspection of intumescent fire-retardant coatings mainly employs non-destructive measurement equipment such as magnetic thickness gauges or eddy current thickness gauges. However, in practical engineering applications, especially when inspecting H-shaped steel components installed at high altitudes, traditional manual inspection methods rely on scaffolding or lifting equipment, which presents problems such as high safety risks, low inspection efficiency, and incomplete inspection coverage. Therefore, in recent years, self-propelled inspection devices have been gradually developed. These devices use a trolley equipped with a detection probe to automatically travel along the steel component, enabling continuous and automated inspection of coatings at high altitudes.

[0004] However, existing self-propelled inspection devices still face the following technical bottlenecks: In building structures, the web height of H-beams varies significantly depending on the model. For example, the web width can range from hundreds of millimeters, from the narrow-flange HN series to the wide-flange HW series. The walking mechanism of existing equipment is usually designed based on a specific web width, and its wheel track, clamping range, and probe arrangement are fixed or have limited adjustability. Once the web size exceeds the design range, the equipment cannot walk stably or position accurately, forcing the replacement of equipment of different specifications on site or the use of multiple models in combination for testing the same project, which significantly increases the cost of equipment purchase and maintenance.

[0005] To achieve simultaneous multi-point measurement of the same horizontal cross-section, existing devices often pre-install multiple detection probes on the crossbeam, with fixed spacing between probes or requiring manual positioning. When dealing with H-beams of varying web widths, operators must manually adjust the installation positions of each probe on the crossbeam according to the actual width to ensure the probe array covers the critical detection area along the web width. This adjustment process involves mechanical disassembly and assembly, position calibration, and probe angle correction, which is not only time-consuming and labor-intensive but also highly dependent on the operator's experience, easily introducing human installation errors and thus affecting the accuracy and consistency of the test data. Summary of the Invention

[0006] This invention provides a self-propelled steel structure fireproof coating thickness detection device, which can solve the following problems existing in the prior art: 1) Poor adaptability to H-beams of different specifications; 2) The adjustment and operation of multi-point detection probes is cumbersome.

[0007] A self-propelled steel structure fireproof coating thickness detection device includes a detection trolley for traveling along H-beams; The H-beam includes two sets of wing plates arranged in parallel and symmetrical arrangement. The structural dimensions of the two sets of wing plates are the same. A web plate is fixedly arranged at the center position between the two sets of wing plates. The web plate is perpendicular to the two side wing plates. The detection trolley includes a first traveling section and a second traveling section. The first traveling section and the second traveling section have the same structure and are symmetrically arranged on both sides of the web plate. The first and second walking parts are each equipped with a detection module, which is used to detect the thickness of the fireproof coating on the web.

[0008] Preferably, both the first walking part and the second walking part include a walking body, and the upper and lower sides of the walking body are respectively provided with a first clamping part and a second clamping part, and the first clamping part and the second clamping part are alternately clamped and fixed to the side wing plates. The first traveling part and the second traveling part further include a lifting part, which is used to drive the first clamping part and the second clamping part to rise and fall.

[0009] Preferably, the first clamping part includes a first positioning plate, on which a first bidirectional screw is rotatably arranged. The end of the first bidirectional screw is fixed to the output end of a first motor fixed on the first positioning plate. A first nut is symmetrically spirally sleeved on the first bidirectional screw. A first guide rod is fixedly arranged on one side of the first nut. The end of the first guide rod away from the first nut is fixedly connected to the first clamping plate.

[0010] Preferably, the second clamping part includes a second positioning plate, on which a second bidirectional screw is rotatably arranged. The end of the second bidirectional screw is fixed to the output end of a second motor fixed on the second positioning plate. A second nut is symmetrically spirally sleeved on the second bidirectional screw. A second guide rod is fixedly arranged on one side of the second nut. The end of the second guide rod away from the second nut is fixedly connected to the second clamping plate.

[0011] Preferably, the lifting unit includes a gear rotatably mounted on the walking body, the gear being fixed to the output end of a third motor fixed on the walking body, and a first rack and a second rack meshing with the gear on both sides of the gear, the first rack being fixedly connected to the first positioning plate through a first L-shaped bracket, and the second rack being fixedly connected to the second positioning plate through a second L-shaped bracket.

[0012] Preferably, the detection module includes a first detection unit and a second detection unit disposed on the upper and lower sides of the walking body; The first detection unit includes several sets of first detection heads arranged in an array, and the second detection unit includes several sets of second detection heads arranged in an array.

[0013] Preferably, the first detection unit further includes a first adjustment mechanism for adjusting the spacing between each first detection end, and the second detection unit further includes a second adjustment mechanism for adjusting the spacing between each second detection end.

[0014] Preferably, the first adjustment mechanism includes a first adjustment frame slidably sleeved on the first guide rods on both sides, a first scissor telescopic mechanism is provided between the two first adjustment frames, and each first detection end is fixed to each pivot shaft of the first scissor telescopic mechanism by a first limiting plate. The second adjustment mechanism includes a second adjustment frame that is slidably sleeved on the second guide rods on both sides, and a second scissor telescopic mechanism is provided between the two second adjustment frames. Each second detection end is fixed to each pivot shaft of the second scissor telescopic mechanism by a second limiting plate.

[0015] Preferably, an adjusting electric cylinder is also fixedly arranged on the first positioning plate and the second positioning plate, and the driving end of the adjusting electric cylinder is fixedly connected to the scissor telescopic mechanism.

[0016] Preferably, it also includes a baffle, on which a third bidirectional screw is rotatably mounted. An adjustment handle is provided at the end of the third bidirectional screw. Two sets of third nuts are symmetrically spirally mounted on the third bidirectional screw. The third nuts on both sides are fixedly connected to the two walking bodies on both sides through connecting plates.

[0017] This invention provides a self-propelled steel structure fireproof coating thickness detection device, which has the following beneficial effects: 1) During the self-movement of the inspection trolley along the H-beam, the thickness of the fireproof coating on the web plate can be detected in real time by the inspection modules arranged on the first and second walking parts, so as to realize the all-round inspection of the thickness of the fireproof coating on the web plate from bottom to top. Based on the inspection results, if there is an abnormality in the coating thickness, it is convenient to process it in the future, thereby ensuring the fireproof stability of the H-beam. 2) By setting multiple sets of detection heads on both the upper and lower sides of the walking body, the present invention enables the detection of the bottom position of the H-beam by the second detection head on the lower side of the walking body when the detection trolley is at the bottom of the H-beam, and the detection of the top position of the H-beam by the first detection head on the upper side of the walking body when the detection trolley rises to the top of the H-beam. Based on this, the present invention can realize the full range detection of the web plate and avoid the phenomenon of detection blind spots. 3) In this invention, based on webs of different widths, as the second nuts on both sides move on the second bidirectional screw and adjust the distance between the second plates on both sides, the second nuts on both sides can synchronously drive the second adjustment frames on both sides to move through the second guide rod. The second adjustment frames on both sides can then drive the second scissor telescopic mechanism to extend and retract, thereby achieving synchronous adjustment of the distance between the second detection ends at each pivot shaft of the second scissor telescopic mechanism, so that the position of each second detection end is adapted to the width of the web. Attached Figure Description

[0018] Figure 1 A schematic diagram of the installation structure of a self-propelled steel structure fireproof coating thickness detection device provided by the present invention. Figure 1 ; Figure 2 A schematic diagram of the installation structure of a self-propelled steel structure fireproof coating thickness detection device provided by the present invention. Figure 2 ; Figure 3 A schematic diagram of the installation structure of a self-propelled steel structure fireproof coating thickness detection device provided by the present invention. Figure 3 ; Figure 4 A top view schematic diagram of a self-propelled steel structure fireproof coating thickness detection device provided by the present invention; Figure 5 A three-dimensional structural schematic diagram of a self-propelled steel structure fireproof coating thickness detection device provided by the present invention; Figure 6 This is a schematic diagram of the walking body in a self-propelled steel structure fireproof coating thickness detection device provided by the present invention; Figure 7 This is a schematic diagram of the detection end of a self-propelled steel structure fireproof coating thickness detection device provided by the present invention; Figure 8 This is a schematic diagram of the third motor in a self-propelled steel structure fireproof coating thickness detection device provided by the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. H-beam; 2. Inspection trolley; 3. First clamping part; 4. Second clamping part; 5. Baffle; 101. Wing plate; 102. Web plate; 201. Walking body; 202. First rack; 203. Second rack; 204. First walking part; 205. Second walking part; 206. Third motor; 207. Gear; 208. T-shaped slide rail; 209. Second L-shaped bracket; 210. First L-shaped bracket; 301. Second positioning plate; 302. Second motor; 303. Second double-acting screw; 304. Second nut; 305. Second guide rod; 306. Second adjusting frame 307. Second clamping plate; 308. Anti-slip texture; 309. Second scissor lift mechanism; 310. Second limiting plate; 311. Second detection end; 401. First positioning plate; 402. First motor; 403. First nut; 404. First guide rod; 405. First adjusting frame; 406. First clamping plate; 407. First bidirectional screw; 408. Adjusting electric cylinder; 409. First scissor lift mechanism; 410. First limiting plate; 411. First detection end; 412. Limiting rod; 501. Third bidirectional screw; 502. Third nut; 503. Adjusting handle. Detailed Implementation

[0020] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0021] Example 1

[0022] like Figures 1 to 5 As shown, an embodiment of the present invention provides a self-propelled steel structure fireproof coating thickness detection device, including a detection trolley 2 for moving along an H-beam 1; specifically, in this embodiment, when detecting the fireproof coating thickness of the H-beam 1, the operator can place the detection trolley 2 at the bottom of the H-beam 1 near the ground or floor, so that the detection trolley 2 can move upward along the H-beam 1, which facilitates subsequent detection of the fireproof coating thickness of the H-beam 1 during the movement. As one embodiment of this invention, the H-beam 1 includes two sets of wing plates 101 arranged in parallel and symmetrical manner. The two sets of wing plates 101 have the same structural dimensions. A web plate 102 is fixedly arranged at the center position between the two sets of wing plates 101. The web plate 102 is perpendicular to both wing plates 101. Specifically, this embodiment does not limit the specific dimensions of the wing plates 101 and the web plate 102, as long as they meet the actual application requirements.

[0023] In this embodiment, the inspection trolley 2 includes a first traveling part 204 and a second traveling part 205. The first traveling part 204 and the second traveling part 205 have the same structure and are symmetrically arranged on both sides of the web plate 102. It can be understood that by setting the traveling parts on both sides of the web plate 102, the traveling parts on both sides can travel along both sides of the web plate 102 during the inspection process. On the one hand, this can ensure the stability of the inspection trolley 2 when it travels, and on the other hand, it can simultaneously detect the thickness of the fireproof coating on both sides of the web plate 102 in real time. It is not necessary to adjust the position of the web plate 102 after the inspection on one side is completed to inspect the other side, thereby improving the inspection efficiency.

[0024] As a further embodiment, the first traveling part 204 and the second traveling part 205 are respectively provided with detection modules. The detection modules are used to detect the thickness of the fireproof coating on the web plate 102. It can be explained that, in the process of the detection trolley 2 traveling along the H-beam 1, the thickness of the fireproof coating on the web plate 102 can be detected in real time by the detection modules arranged on the first traveling part 204 and the second traveling part 205, so as to realize the all-round detection of the protective coating thickness of the web plate 102 from bottom to top. Based on the detection results, if there is an abnormality in the coating thickness, it is convenient to carry out subsequent processing, thereby ensuring the fireproof stability of the H-beam 1.

[0025] Example 2

[0026] Based on Example 1, please refer to Figures 4-8 Both the first traveling part 204 and the second traveling part 205 include a traveling body 201. The upper and lower sides of the traveling body 201 are respectively provided with a first clamping part 3 and a second clamping part 4. The first clamping part 3 and the second clamping part 4 are alternately clamped and fixed to the side wing plates 101. The first traveling part 204 and the second traveling part 205 also include a lifting part, which is used to drive the first clamping part 3 and the second clamping part 4 to rise and fall. It can be noted that, in this embodiment, the detection trolley 2 moves along the H-beam 1... First, the traveling part is clamped and positioned between the two side wing plates 101 by the first clamping part 3. Then, the traveling body 201 is driven to rise a certain distance by the lifting part. Next, the traveling part is clamped and positioned with the two side wing plates 101 by the second clamping part 4. Then, the first clamping part 3 is adjusted to separate from the two side wing plates 101. The traveling body 201 can be driven to rise a certain distance again by the lifting part. Then, the first clamping part 3 is clamped and positioned with the two side wing plates 101. This process is repeated to achieve the effect of driving the detection trolley 2 to rise along the H-beam 1.

[0027] In one embodiment of this invention, the first clamping part 3 includes a first positioning plate 401. A first bidirectional screw 407 is rotatably arranged on the first positioning plate 401. The end of the first bidirectional screw 407 is fixed to the output end of a first motor 402 fixed on the first positioning plate 401. A first nut 403 is symmetrically spirally sleeved on the first bidirectional screw 407. A first guide rod 404 is fixedly arranged on one side of the first nut 403. The end of the first guide rod 404 away from the first nut 403 is fixedly connected to a first clamping plate 406. It can be noted that when the first clamping part 3 of this embodiment is clamped and positioned with the wing plate 101, the first motor 402 is first started to drive the first bidirectional screw 407 to rotate. During the movement of the first nuts 403 on the first bidirectional screw 407, the first guide rods 404 on both sides can drive the first clamping plates 406 on both sides to move away from each other until the first clamping plates 406 on both sides are clamped and attached to the wing plate 101, thereby achieving the effect of positioning the walking part.

[0028] Specifically, the second clamping part 4 includes a second positioning plate 301, on which a second bidirectional screw 303 is rotatably arranged. The end of the second bidirectional screw 303 is fixed to the output end of the second motor 302 fixed on the second positioning plate 301. A second nut 304 is symmetrically spirally sleeved on the second bidirectional screw 303. A second guide rod 305 is fixedly arranged on one side of the second nut 304. The end of the second guide rod 305 away from the second nut 304 is fixedly connected to the second clamping plate 307. It can be explained that when the second clamping part 4 of this embodiment clamps and positions the wing plate 101, the second motor 302 is first started to drive the second bidirectional screw 303 to rotate. During the movement of the second nuts 304 on the second bidirectional screw 303, the second guide rods 305 on both sides can drive the second clamping plates 307 on both sides to move away from each other until the second clamping plates 307 on both sides are clamped and attached to the wing plate 101, thereby achieving the effect of positioning the walking part.

[0029] To improve the clamping and positioning effect between the first clamping plate 406 and the second clamping plate 307 and the wing plate 101, in this embodiment, please refer to... Figure 5 The first card plate 406 and the second card plate 307 are uniformly provided with anti-slip textures 308 on the side of the wing plate 101. It can be explained that by providing anti-slip textures 308 on the first card plate 406 and the second card plate 307, the friction force when the first card plate 406 and the second card plate 307 come into contact with the wing plate 101 is greater, ensuring the stability of their positioning.

[0030] Furthermore, it should be noted that this embodiment, by setting a first clamping part 3 and a second clamping part 4 of a clamping structure, and the adjustable spacing between the clamping plates on both sides of the first clamping part 3 and the second clamping part 4, allows the inspection trolley 2 to be applicable to web plates 102 of different widths, and to inspect H-beams 1 of different sizes.

[0031] In one embodiment of this invention, the lifting unit includes a gear 207 rotatably mounted on the walking body 201. The gear 207 is fixed to the output end of a third motor 206 fixed on the walking body 201. A first rack 202 and a second rack 203 meshing with the gear 207 are respectively arranged on both sides of the gear 207. The first rack 202 is fixedly connected to the first positioning plate 401 via a first L-shaped bracket 210, and the second rack 203 is fixedly connected to the second positioning plate 301 via a second L-shaped bracket 209. It should be noted that when the lifting unit in this embodiment drives the walking body 201 to rise and fall, it first uses the first... The first clamping part 3 is clamped and positioned with the two side wing plates 101. Then, the third motor 206 is started to drive the gear 207 to rotate. During the rotation of the gear 207, since the first clamping part 3 is fixed, the first rack 202 is in a fixed state. The gear 207 can move upward along the first rack 202, thereby driving the walking body 201 to rise. Correspondingly, as the second clamping part 4 is clamped and positioned with the wing plate 101, the third motor 206 can drive the gear 207 to rotate in the opposite direction, so that the gear 207 can move upward along the second rack 203. By repeating this process, the effect of driving the walking body 201 to rise can be achieved.

[0032] In addition, in order to improve the stability of the movement of the first rack 202 and the second rack 203, a T-shaped slide groove 208 is provided on the walking body 201. A T-shaped slide block fixedly connected to the rack is slidably arranged in the T-shaped slide groove 208 to ensure the stability of its movement.

[0033] As a further embodiment, the detection module includes a first detection section and a second detection section arranged on the upper and lower sides of the walking body 201. The first detection section includes several sets of first detection heads 411 arranged in an array, and the second detection section includes several sets of second detection heads 311 arranged in an array. It can be explained that by setting multiple sets of detection heads on both the upper and lower sides of the walking body 201, when the detection trolley 2 is at the bottom of the H-beam 1, the second detection heads 311 on the lower side of the walking body 201 can be used to detect the bottom position of the H-beam 1. When the detection trolley 2 rises to the top of the H-beam 1, the first detection heads 411 on the upper side of the walking body 201 can be used to detect the top position of the H-beam 1. Based on this, this embodiment can realize full-range detection of the web 102 and avoid the phenomenon of detection blind spots.

[0034] Please refer to Figures 5-8The first detection unit also includes a first adjustment mechanism, which is used to adjust the spacing of each first detection end 411 equally. The second detection unit also includes a second adjustment mechanism, which is used to adjust the spacing of each second detection end 311 equally. It can be noted that, for web plates 102 of different widths, in order to ensure that each position on the same horizontal plane of the web plate 102 is detected, the spacing of each detection end can be adaptively adjusted by the cooperation of the first adjustment mechanism and the second adjustment mechanism, so that the position of each detection end is adapted to the width of the web plate 102, so as to avoid the phenomenon of detection blind spots.

[0035] Specifically, the first adjustment mechanism includes a first adjustment frame 405 slidably sleeved on the first guide rods 404 on both sides, and a first scissor telescopic mechanism 409 provided between the two first adjustment frames 405. Each first detection end 411 is fixed to each pivot shaft of the first scissor telescopic mechanism 409 by a first limiting plate 410. It can be explained that, based on the different widths of the web 102, as the first nuts 403 on both sides move on the first bidirectional screw 407 and adjust the distance between the first clamping plates 406 on both sides, the first nuts 403 on both sides can synchronously drive the first adjustment frames 405 on both sides to move through the first guide rods 404. The first adjustment frames 405 on both sides drive the first scissor telescopic mechanism 409 to extend and retract, thereby realizing the synchronous adjustment of the distance between the first detection ends 411 at each pivot shaft of the first scissor telescopic mechanism 409, so that the position of each first detection end 411 is adapted to the width of the web 102.

[0036] Furthermore, the second adjustment mechanism includes a second adjustment frame 306 slidably sleeved on the second guide rods 305 on both sides, and a second scissor telescopic mechanism 309 is provided between the two second adjustment frames 306. Each second detection end 311 is fixed to each pivot shaft of the second scissor telescopic mechanism 309 by a second limiting plate 310. It can be explained that, based on the different widths of the web 102, as the second nuts 304 on both sides move on the second bidirectional screw 303 and adjust the distance between the second clamping plates 307 on both sides, the second nuts 304 on both sides can synchronously drive the second adjustment frames 306 on both sides to move through the second guide rods 305. The second adjustment frames 306 on both sides drive the second scissor telescopic mechanism 309 to extend and retract, thereby realizing the synchronous adjustment of the distance between the second detection ends 311 at each pivot shaft of the second scissor telescopic mechanism 309, so that the position of each second detection end 311 is adapted to the width of the web 102.

[0037] Based on this, this embodiment does not require setting up other servo adjustment devices to adjust the spacing of each detection end to match the width of the web plate 102. As the adjustment plate and the wing plate 101 are clamped and positioned, the effect of adaptive adjustment of the spacing of each detection end can be achieved.

[0038] In addition, in order to adjust the contact between each detection end and the fireproof coating on the web plate 102, an adjustment cylinder 408 is fixedly arranged on the first positioning plate 401 and the second positioning plate 301. The drive end of the adjustment cylinder 408 is fixedly connected to the scissor telescopic mechanism. It can be explained that when the detection end detects the fireproof coating on the web plate 102, the adjustment cylinder 408 is activated. The adjustment cylinder 408 can drive the scissor telescopic mechanism to move towards the web plate 102, thereby causing each detection end to contact the fireproof coating on the web plate 102, so as to facilitate subsequent detection.

[0039] To ensure that the first traveling part 204 and the second traveling part 205 can be stably embedded in the H-beam 1, this embodiment also includes a baffle 5. A third bidirectional screw 501 is rotatably arranged on the baffle 5. An adjustment handle 503 is provided at the end of the third bidirectional screw 501. Two sets of third nuts 502 are symmetrically spirally sleeved on the third bidirectional screw 501. The third nuts 502 on both sides are fixedly connected to the two traveling bodies 201 on both sides through connecting plates. It can be noted that in the initial state, the two traveling bodies 201 on both sides are in a state of being away from each other. In application, the two traveling bodies 201 on both sides can be moved to both sides of the H-beam 1. Then, the third bidirectional screw 501 is rotated by adjusting the handle 503. During the movement of the third nuts 502 on the third bidirectional screw 501, the two traveling bodies 201 on both sides can be driven to move closer to each other through the connecting plate, so that the subsequent clamping parts can be clamped and positioned with the wing plate 101.

[0040] Furthermore, to prevent the limiting plates from rotating around their respective pivot axes, in this embodiment, please refer to... Figure 6 Each limiting plate is slidably sleeved on the limiting rod 412, and the two ends of the limiting rod 412 can be fixedly connected to the positioning plate through the connecting frame.

[0041] A method for detecting the thickness of a self-propelled steel structure fireproof coating includes the following steps: Please see Figures 1-5 S1. The operator places the testing trolley 2 on the bottom of the H-beam 1, which is close to the ground or floor. S2, the drive detection trolley 2 moves upward along the H-beam 1. S3. During the ascent, the thickness of the fireproof coating on the web plate 102 is detected in real time by detection modules installed on the first traveling part 204 and the second traveling part 205, respectively.

[0042] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A self-propelled steel structure fireproof coating thickness detection device, comprising a detection trolley (2) for traveling along an H-beam (1); Its features are, The H-beam (1) includes two sets of flanges (101) arranged in parallel and symmetrical arrangement. The two sets of flanges (101) have the same structural dimensions. A web (102) is fixedly arranged at the center position between the two sets of flanges (101). The web (102) is perpendicular to the two side flanges (101). The detection trolley (2) includes a first walking part (204) and a second walking part (205). The first walking part (204) and the second walking part (205) have the same structure and are symmetrically arranged on both sides of the web plate (102). The first walking part (204) and the second walking part (205) are respectively provided with detection modules, which are used to detect the thickness of the fireproof coating on the web plate (102).

2. The self-propelled steel structure fireproof coating thickness detection device as described in claim 1, characterized in that, Both the first walking part (204) and the second walking part (205) include a walking body (201). The upper and lower sides of the walking body (201) are respectively provided with a first clamping part (3) and a second clamping part (4). The first clamping part (3) and the second clamping part (4) are alternately clamped and fixed to the two side wing plates (101). The first walking part (204) and the second walking part (205) also include a lifting part, which is used to drive the first clamping part (3) and the second clamping part (4) to lift.

3. The self-propelled steel structure fireproof coating thickness detection device as described in claim 2, characterized in that, The first clamping part (3) includes a first positioning plate (401), a first bidirectional screw (407) is rotatably arranged on the first positioning plate (401), the end of the first bidirectional screw (407) is fixed to the output end of the first motor (402) fixed on the first positioning plate (401), a first nut (403) is symmetrically spirally sleeved on the first bidirectional screw (407), a first guide rod (404) is fixedly arranged on one side of the first nut (403), and the end of the first guide rod (404) away from the first nut (403) is fixedly connected to the first clamping plate (406).

4. The self-propelled steel structure fireproof coating thickness detection device as described in claim 3, characterized in that, The second clamping part (4) includes a second positioning plate (301), on which a second bidirectional screw (303) is rotatably arranged. The end of the second bidirectional screw (303) is fixed to the output end of the second motor (302) fixed on the second positioning plate (301). A second nut (304) is symmetrically spirally sleeved on the second bidirectional screw (303). A second guide rod (305) is fixedly arranged on one side of the second nut (304). The end of the second guide rod (305) away from the second nut (304) is fixedly connected to the second clamping plate (307).

5. The self-propelled steel structure fireproof coating thickness detection device as described in claim 4, characterized in that, The lifting unit includes a gear (207) rotatably mounted on the walking body (201). The gear (207) is fixed to the output end of a third motor (206) fixed on the walking body (201). A first rack (202) and a second rack (203) meshing with the gear (207) are respectively mounted on both sides of the gear (207). The first rack (202) is fixedly connected to the first positioning plate (401) through a first L-shaped bracket (210), and the second rack (203) is fixedly connected to the second positioning plate (301) through a second L-shaped bracket (209).

6. The self-propelled steel structure fireproof coating thickness detection device as described in claim 5, characterized in that, The detection module includes a first detection section and a second detection section arranged on the upper and lower sides of the walking body (201); The first detection unit includes several sets of first detection heads (411) arranged in an array, and the second detection unit includes several sets of second detection heads (311) arranged in an array.

7. The self-propelled steel structure fireproof coating thickness detection device as described in claim 6, characterized in that, The first detection unit further includes a first adjustment mechanism, which is used to adjust each first detection end (411) at equal intervals. The second detection unit further includes a second adjustment mechanism, which is used to adjust each second detection end (311) at equal intervals.

8. The self-propelled steel structure fireproof coating thickness detection device as described in claim 7, characterized in that, The first adjustment mechanism includes a first adjustment frame (405) slidably sleeved on the first guide rods (404) on both sides, a first scissor telescopic mechanism (409) is provided between the first adjustment frames (405) on both sides, and each first detection end (411) is fixed to each pivot shaft of the first scissor telescopic mechanism (409) by a first limiting plate (410); The second adjustment mechanism includes a second adjustment frame (306) slidably sleeved on the second guide rods (305) on both sides, and a second scissor telescopic mechanism (309) is provided between the two second adjustment frames (306). Each second detection end (311) is fixed to each pivot shaft of the second scissor telescopic mechanism (309) by a second limiting plate (310).

9. The self-propelled steel structure fireproof coating thickness detection device as described in claim 8, characterized in that, An adjusting electric cylinder (408) is also fixedly arranged on the first positioning plate (401) and the second positioning plate (301), and the driving end of the adjusting electric cylinder (408) is fixedly connected to the scissor telescopic mechanism.

10. A self-propelled steel structure fireproof coating thickness detection device as described in claim 2, characterized in that, It also includes a baffle (5), on which a third bidirectional screw (501) is rotatably arranged. An adjustment handle (503) is provided at the end of the third bidirectional screw (501). Two sets of third nuts (502) are symmetrically spirally sleeved on the third bidirectional screw (501). The third nuts (502) on both sides are fixedly connected to the walking bodies (201) on both sides through connecting plates.

Images