Steel structure on-site anti-corrosion fireproof coating semi-automatic coating device

Abstract

The utility model discloses a steel structure on-site anticorrosion fireproof paint coating semi-automatic device which comprises a structure body to be subjected to anticorrosion fireproof coating on an installation site, and further comprises a welding-free magnetic track base, a flexible annular track, an annular walking trolley, a connecting transverse rod, a vertical linear track, a vertical track sliding block and a spraying mechanism. An annular walking trolley is arranged on the flexible annular track, a vertical track sliding block is arranged on the vertical linear track, and the spray head mechanism is connected with the vertical track sliding block. According to the utility model, through the comprehensive movement of the circumferential walking trolley and the vertical track sliding block, the spraying mechanism can uniformly coat the coating on a structure body to be subjected to anti-corrosion and fireproof coating on an installation site at a constant speed, and through the arrangement of the flexible annular track and the vertical linear track, the coating construction of the anti-corrosion and fireproof coating of tubular steel columns of various specifications can be adapted; the field construction operation intensity is greatly reduced, the high-altitude construction risk is reduced, and the construction quality such as the coating thickness and the coating appearance is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of steel structure technology, and in particular to a semi-automatic device for on-site application of anti-corrosion and fireproof coatings for steel structures. Background Technology

[0002] Steel structures offer advantages such as light weight, good earthquake resistance, and large spans, but their prominent drawbacks are poor fire resistance and corrosion resistance. Steel structures are primarily used as load-bearing frames for light and heavy workshops, factory structures subjected to dynamic loads, plate and shell structures, tall television towers and mast structures, large-span structures such as bridges and warehouses, and high-rise and super high-rise buildings. To address corrosion resistance, steel structures are equipped with corresponding coating systems (primer + intermediate coat + topcoat, etc.). To address fire resistance, steel structures are coated with intumescent or non-intumescent fire-retardant coatings on-site according to building requirements and needs, based on their fire resistance rating.

[0003] Chinese patent CN215390353U discloses a "fireproof steel structure coating device," comprising a base and a storage tank. A handle is installed on one side of the top of the base. A battery is installed on the top of the base next to the handle. The storage tank is installed on the top of the base next to the battery. A feeding pump is installed on the top of the base next to the storage tank. A support plate is installed at the middle of the top of the base away from the handle. Universal wheels are installed at the four corners of the bottom of the base via support columns. A top plate is installed at the top of the support plate, and the bottom middle of the top plate is connected to the base via a screw. This solution achieves automatic coating of steel structures by using a screw, servo motor, slider, and coating wheels.

[0004] However, when the above-mentioned equipment is used for high-altitude operations, the on-site topcoat spraying and fireproof coating spraying are done manually, which is quite dangerous. The quality control is inconsistent and greatly affected by the operator's construction experience, mental state, and workmanship. Moreover, according to the mandatory standard of the "Standard for Acceptance of Construction Quality of Steel Structure Engineering" (GB50205-2020), the thickness of anti-corrosion coating and fireproof coating is the main control item for inspection, while the coating appearance quality (uniformity, etc.) is a general inspection item. Therefore, it is impossible to guarantee the safety of the operators and the construction quality of coating thickness and coating appearance.

[0005] To solve the above problems, there is an urgent need to design a semi-automatic device for on-site application of anti-corrosion and fireproof coatings to steel structures. Utility Model Content

[0006] The purpose of this utility model is to provide a semi-automatic device for on-site application of anti-corrosion and fireproof coatings to steel structures, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] This utility model provides a semi-automatic device for on-site anti-corrosion and fireproof coating of steel structures, including the main body of the structure to be coated on-site, and also including: a weld-free magnetic track base, a flexible ring track, a ring-shaped traveling trolley, a connecting crossbar, a vertical straight track, a vertical track slider, and a spraying mechanism.

[0009] The weld-free magnetic track base is configured as two and is respectively installed at the top and bottom of the steel structure body; the flexible ring track is installed on the weld-free magnetic track base;

[0010] The flexible annular track includes a flexible annular upper track and a flexible annular lower track. The upper flange of the flexible annular upper track is connected to a weld-free magnetic track base, and the lower flange is in contact with the circumferential traveling trolley. The upper flange of the flexible annular lower track is in contact with the circumferential traveling trolley, and the lower flange is connected to the weld-free magnetic track base.

[0011] The circumferential traveling trolley is installed between the upper flexible ring track and the lower flexible ring track, and moves synchronously at low speed between the upper flexible ring track and the lower flexible ring track.

[0012] There are two connecting crossbars, which are symmetrically arranged vertically between the circumferential traveling trolley and the vertical straight track.

[0013] The vertical track slider slides up and down on the vertical straight track, and a crossbeam connects the vertical track slider to the spraying mechanism.

[0014] Furthermore, the weld-free magnetic track base includes a switch magnet base and a connecting suspension angle iron;

[0015] The switch magnet base is equipped with a manual strong magnetic switch. The switch magnet base is connected to the vertical surface of the connecting suspension angle iron by means of suspension vertical fixing bolts. The plane of the connecting suspension angle iron is connected to the flexible ring track by means of suspension horizontal fixing bolts.

[0016] Furthermore, one of the suspended vertical fixing bolts is provided on a single set of weld-free magnetic track bases, and four of the suspended horizontal fixing bolts are provided on a single set of weld-free magnetic track bases and arranged in an array.

[0017] Furthermore, the weld-free magnetic track base has several flexible annular track bolt holes, which form a group on the weld-free magnetic track base and are arranged in an array.

[0018] Furthermore, the circumferential traveling trolley includes trolley rolling wheels, triangular connecting plates for the front and rear rolling wheels of the trolley, a connecting shaft, and a main connecting plate for the circumferential traveling trolley;

[0019] The trolley's rolling wheels travel on both sides of the web of the flexible annular track, above the lower flange and the upper flange;

[0020] The single triangular connecting plate for the front and rear rolling wheels of the trolley connects the front and rear rolling wheels and bearings into one unit, and the two triangular connecting plates for the front and rear rolling wheels of the trolley connect the inner and outer rolling wheels into one unit through a connecting shaft;

[0021] The main connecting plate of the circumferential walking trolley is centrally located on the connecting shaft and is laterally connected to the connecting crossbar.

[0022] Furthermore, the connecting crossbar is integrally formed from a bent metal part with a C-shaped cross-section. One end is connected to the main connecting plate of the circumferential traveling trolley, and the other end is connected to the vertical straight track.

[0023] Furthermore, the vertical linear track is a ball-bearing linear guide pair, and the vertical linear track moves along the outer wall of the steel structure body via the circumferential traveling trolley.

[0024] Furthermore, the vertical track slider includes a vertical track slider body, a vertical traveling trolley, and a vertical traveling trolley control box;

[0025] The vertical traveling trolley is mounted on the vertical track slider body, and a driving device is installed inside the vertical traveling trolley. The driving device drives the vertical traveling trolley and the vertical track slider body to run linearly on the vertical straight track.

[0026] The vertical traveling trolley control box is mounted on the vertical traveling trolley and connected to an external power source, and is used to adjust the running speed of the vertical traveling trolley.

[0027] Furthermore, the spraying mechanism includes a spray gun and a paint spray gun holder, the paint spray gun holder being used to fix the spray gun.

[0028] Furthermore, one end of the crossbeam is detachably connected to the vertical traveling trolley, and the other end is detachably connected to the paint spray gun holder.

[0029] Furthermore, the coating sprayed by the spraying mechanism through the combined operation of the circumferential and vertical traveling trolleys has a conical cross-section and a fan-shaped vertical surface, and the coating is sprayed onto the steel structure body in a continuous spiral surface.

[0030] The beneficial effects of this utility model are as follows:

[0031] 1. This utility model, by installing a weld-free magnetic track base on the structure to be coated with anti-corrosion and fireproof coating at the installation site, and installing a flexible ring track on the weld-free magnetic track base, allows this device to adapt to the on-site anti-corrosion and fireproof coating construction environment of steel components (especially steel columns) with various cross sections, especially circular tube cross sections, tapered tube cross sections, or box-shaped cross sections. It can greatly reduce the intensity of on-site construction work, reduce the risk of high-altitude construction, and ensure the construction quality such as coating thickness and coating appearance.

[0032] 2. This utility model features a circumferential traveling trolley on a flexible circular track and a vertical traveling trolley on a vertical straight track. A connecting crossbar connects the circumferential traveling trolley to the vertical straight track, and a crossbeam connects the spraying mechanism to the vertical traveling trolley. During operation, the paint spray gun moves in a combined circumferential curve and vertical straight line motion in space, with a sweeping trajectory resembling a spiral. Simultaneously, the paint sprayed from the nozzle has a conical cross-section and a fan-shaped vertical surface. The paint appears as a continuous flow on steel components (especially circular steel columns). The spiral surface coating system, utilizing a simple device consisting of flexible circumferential and vertical tracks, as well as controllable speed circumferential and vertical trolleys, achieves uniform and even coating at a constant speed. This changes the current common method of manual high-altitude spraying on construction sites, reducing material waste and increasing coating coverage. Compared to traditional manual operations that require prolonged handheld spraying, it reduces the workload of on-site workers, improves their working environment, and eliminates the need to be close to the spray gun nozzle; spraying can be done from 2-3 meters away, reducing the risks of high-altitude manual construction and improving construction quality.

[0033] 3. The weld-free magnetic track base, traveling trolley, track, connecting rods, fixing bolts, and spray gun / sprayer required in the entire device of this utility model are all equipment and materials that are readily available on the market. No special design or large investment is required. Moreover, the on-site assembly, debugging, and operation of each component are simple and easy to perform. After a simple briefing, the on-site operators can operate proficiently.

[0034] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This invention provides a schematic diagram of the overall front view of a semi-automatic on-site anti-corrosion and fireproof coating device for steel structures according to an embodiment of the present invention.

[0037] Figure 2 This diagram shows a schematic left-side view of the overall structure of a semi-automatic on-site anti-corrosion and fireproof coating device for steel structures according to an embodiment of the present invention.

[0038] Figure 3 This invention provides a schematic top view of the overall structure of a semi-automatic on-site anti-corrosion and fireproof coating device for steel structures according to an embodiment of the present invention.

[0039] Figure 4 An embodiment of the present invention is shown. Figure 1 Enlarged view of point A in the middle;

[0040] Figure 5 An embodiment of the present invention is shown. Figure 1 Enlarged view of point B in the middle;

[0041] Figure 6 An embodiment of the present invention is shown. Figure 1 Enlarged view of point C in the middle;

[0042] Figure 7 A top view schematic diagram of the flexible annular track structure according to an embodiment of the present invention is shown.

[0043] In the diagram: 1. Steel structure body; 2. Weld-free magnetic track base; 21. Switch magnet base; 22. Connecting suspension angle iron; 23. Suspension vertical fixing bolt; 24. Suspension horizontal fixing bolt; 3. Flexible ring track; 31. Flexible ring upper track; 32. Flexible ring lower track; 33. Flexible ring track bolt holes; 4. Circular traveling trolley; 41. Trolley rolling wheel; 42. Trolley front and rear rolling wheel triangular connecting plate; 43. Connecting shaft; 44. Circular traveling trolley main connecting plate; 5. Connecting crossbar; 6. Vertical straight track; 7. Vertical track slider; 71. Vertical track slider body; 72. Vertical traveling trolley; 73. Vertical traveling trolley control box; 8. Spraying mechanism; 81. Spray gun; 82. Paint spray gun holder; 9. Crossbeam. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0045] It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0046] like Figure 1-7 As shown, this utility model provides a semi-automatic device for on-site anti-corrosion and fireproof coating of steel structures, including a structural body 1 to be installed on-site for anti-corrosion and fireproof coating, and also including: a weld-free magnetic track base 2, a flexible ring track 3, a ring-shaped traveling trolley 4, a connecting crossbar 5, a vertical straight track 6, a vertical track slider 7, and a spraying mechanism 8.

[0047] The weld-free magnetic track base 2 is configured as two and is respectively installed at the top and bottom of the steel structure body 1; the flexible ring track 3 is installed on the weld-free magnetic track base 2 by bolts, which facilitates disassembly;

[0048] The flexible annular track 3 includes a flexible annular upper track 31 and a flexible annular lower track 32. The upper flange of the flexible annular upper track 31 is connected to the weld-free magnetic track base 2, and the lower flange is in contact with the circumferential traveling trolley 4. The upper flange of the flexible annular lower track 32 is in contact with the circumferential traveling trolley 4, and the lower flange is connected to the weld-free magnetic track base 2.

[0049] The circumferential traveling trolley 4 is installed between the flexible annular upper track 31 and the flexible annular lower track 32, and moves synchronously at low speed between the flexible annular upper track 31 and the flexible annular lower track 32.

[0050] There are two connecting crossbars 5, which are symmetrically arranged vertically between the circumferential traveling trolley 4 and the vertical straight track 6.

[0051] The vertical track slider 7 slides up and down on the vertical straight track 6, and a crossbeam 9 connects the vertical track slider 7 and the spraying mechanism 8.

[0052] This invention involves installing weld-free magnetic track bases 2 at the top and bottom of the steel structure body 1 to be coated with anti-corrosion and fireproof paint at the installation site; and installing the flexible annular track 3 on the weld-free magnetic track base 2 with bolts. This allows the device to adapt to the on-site anti-corrosion and fireproof paint coating construction environment of steel components (especially steel columns) with various cross sections, especially circular tube cross sections, tapered tube cross sections, or box-shaped cross sections. It can greatly reduce the intensity of on-site construction work, reduce the risk of high-altitude construction, and ensure the construction quality such as coating thickness and coating appearance.

[0053] Combination Figure 1 , Figure 4 and Figure 5 As an embodiment of this application, the weld-free magnetic track base 2 includes a switch magnet base 21 and a connecting suspension angle iron 22;

[0054] The switch magnet base 21 is equipped with a manual strong magnetic switch. When in use, switching it to the "ON" state will allow it to be strongly attracted to the structure body 1 to be coated with anti-corrosion and fireproof coating at the installation site. After the construction is completed and the structure is removed, switching it to the "OFF" state will allow it to be easily separated. The switch magnet base 21 is connected to the vertical surface of the connecting suspension angle iron 22 by the suspension vertical fixing bolt 23. The plane of the connecting suspension angle iron 22 is connected to the flexible ring track 3 by the suspension horizontal fixing bolt 24.

[0055] In a preferred embodiment of this application, the suspension vertical fixing bolt 23 is set as one on a single set of weld-free magnetic track base 2, connecting the switch magnet base 21 to the side of the connecting suspension angle iron 22; the suspension horizontal fixing bolt 24 is set as four on a single set of weld-free magnetic track base 2 and arranged in an array (2 rows × 2 columns), connecting the top surface of the connecting suspension angle iron 22 to the flexible annular track 3.

[0056] like Figure 7As shown, preferably, the flexible annular track 3 has a plurality of flexible annular track bolt holes 33, and the plurality of flexible annular track bolt holes 33 form 3-8 hole groups on the flexible annular track 3 and are arranged in a row (2 rows × 2 columns). The flexible annular track 3 is bolted to the weld-free magnetic track base 2 through the plurality of flexible annular track bolt holes 33.

[0057] Preferably, the circumferential traveling trolley 4 includes trolley rolling wheels 41, trolley front and rear rolling wheel triangular connecting plates 42, connecting shaft 43 and circumferential traveling trolley main connecting plate 44;

[0058] The trolley wheels 41 travel on both sides of the web of the flexible annular track 3, above the lower flange and the upper flange;

[0059] The single triangular connecting plate 42 for the front and rear rolling wheels of the trolley connects the front and rear rolling wheels 41 and the bearings into one piece. At the same time, the two triangular connecting plates 42 for the front and rear rolling wheels of the trolley connect the inner and outer rolling wheels 41 into one piece through the connecting shaft 43.

[0060] The main connecting plate 44 of the circumferential walking trolley is centrally located on the connecting shaft 43 and is laterally connected to the connecting crossbar 5.

[0061] In a preferred embodiment of this application, the connecting crossbar 5 is a rigid bar, specifically a metal bent piece integrally formed with a C-shaped cross section. One end is connected to the main connecting plate 44 of the circumferential traveling trolley by bolts, and the other end is connected to the vertical linear track 6 by bolts.

[0062] Preferably, the vertical straight track 6 is provided as a single continuous track, the length of which can be adjusted according to the height of the inter-floor columns. Specifically, the vertical straight track 6 is a ball bearing linear guide pair. After the circumferential traveling trolley 4 starts running, the vertical straight track 6 moves in a circumferential contour motion along the outer wall of the steel structure body 1 to be coated with anti-corrosion and fireproof coating at the installation site via the circumferential traveling trolley 4.

[0063] Preferably, the vertical track slider 7 includes a vertical track slider body 71, a vertical traveling trolley 72, and a vertical traveling trolley control box 73;

[0064] Specifically, the vertical traveling trolley 72 is mounted on the vertical track slider body 71, and a driving device is installed inside the vertical traveling trolley 72. The driving device drives the vertical traveling trolley 72 and the vertical track slider body 71 to run linearly on the vertical straight track 6. The vertical traveling trolley control box 73 is mounted on the vertical traveling trolley 72 and is connected to an external power supply. It can adjust all the movements of the vertical traveling trolley 72, and is mainly used to adjust the running speed of the vertical traveling trolley 72 and control the vertical running speed of the spray gun on the steel structure line to be sprayed.

[0065] As a preferred embodiment of this application, the track slider body 71 moves back and forth on the vertical straight track 6. During the anti-corrosion or fireproof coating spraying operation, the vertical track slider body 71 runs at a low speed from top to bottom. When a single component is sprayed and moved to the next construction site, the vertical track slider body 71 is manually pushed from bottom to top to the other end.

[0066] Preferably, the spraying mechanism 8 includes a spray gun 81 and a paint spray gun holder 82, the paint spray gun holder 82 being used to fix the spray gun 81, and the spraying mechanism 8 is made of corrosion-resistant and fire-resistant material.

[0067] Preferably, one end of the crossbeam 9 is detachably connected to the vertical traveling trolley 72, and the other end is detachably connected to the paint spray gun holder 82. Specifically, the crossbeam 9 is connected by bolts for easy disassembly. At the same time, the distance between the spray gun 81 and the structure body 1 to be coated with anti-corrosion and fireproof coatings at the installation site is adjusted according to the different materials and process parameters (nozzle distance, nozzle diameter, spraying pipeline pressure, etc.) of anti-corrosion and fireproof coatings.

[0068] During use, the operator activates the switches for the circumferential traveling trolley 4, the paint spray gun 81, and the vertical traveling trolley 72. The circumferential traveling trolley 4 and the vertical traveling trolley 72 operate automatically according to predetermined parameters such as running speed. The paint spray gun 81 automatically sprays paint according to set parameters such as pressure and distance between the spray gun and the steel structure body 1 to be coated for corrosion and fire prevention. Only one worker is needed on-site to supervise and assist, ensuring that the circuit wiring is unobstructed, the air hose is clear and not tangled, the paint supply is sufficient, and handling other on-site emergencies. One worker replenishes the paint mix and adjusts the mixing. The mixed anti-corrosion or fire-retardant coating is promptly replenished to the pipeline terminal connected to the spray gun of the semi-automatic coating device, i.e., the coating storage tank or other containers. Workers are freed from heavy manual labor and do not need to frequently move the scaffolding or work platform. Scaffolding or work platforms are only used when installing the upper flexible circular track and the circular running trolley. The manual spraying operation is transformed into a semi-automatic mechanical operation. Moreover, the speed of the circular traveling trolley 4 and the vertical traveling trolley 72 is adjustable and controllable, and the uniform speed operation makes it easy to ensure the coating thickness and coating appearance, thereby improving the use effect of this device.

[0069] In a preferred embodiment of this application, the anti-corrosion and fireproof coating spray gun 81 is held by a coating spray gun holder 83 on a vertical traveling trolley 72. By adjusting the running speed of the circumferential traveling trolley 4 and the vertical traveling trolley 72, the coating spray gun 81 performs a combined circumferential curve and a vertical straight line movement in space. The sweeping trajectory is similar to a spiral. The coating sprayed by the spraying mechanism 8 through the combined operation of the circumferential traveling trolley 4 and the vertical traveling trolley 72 has a conical cross-section and a fan-shaped vertical surface. The coating sprayed on the structure body 1 to be coated with anti-corrosion and fireproof coating at the installation site forms a continuous spiral surface. A simple device, consisting of a flexible circular track 3, a vertical linear track 6, and small equipment and measures such as a speed-controlled circular traveling trolley 4 and a vertical traveling trolley 72, achieves uniform and even coating at a constant speed. This changes the current common method of manual high-altitude spraying at construction and installation sites, reducing material loss. The spray gun 81 is perpendicular to the working surface of the steel structure 1 to be coated with anti-corrosion and fireproof coating at the installation site. Except for the influence of wind, there is almost no loss, increasing the coating coverage. Furthermore, because the spray gun 81 is perpendicular to the working surface of the steel structure 1 to be coated with anti-corrosion and fireproof coating, the coating is basically fully applied to the surface of the steel structure 1 to be coated with anti-corrosion and fireproof coating at the installation site. This reduces the workload of on-site construction workers, eliminating the need for long-term manual spraying with a handheld spray gun, improving the working environment for workers. It also eliminates the need to be close to the spray gun nozzle, allowing spraying to be done from 2-3 meters away from the work area, reducing the risk of high-altitude manual construction and improving construction quality.

[0070] The working principle of this utility model is as follows:

[0071] During use, verify that the previous process has been completed and inspected. For example, if the welds have passed inspection, damaged paint and welds have been manually touched up and inspected, and the substrate to be coated has been cleaned of oil, rust, and other contaminants, then connect and fix the weldless magnetic track base 2 to the connecting suspension angle iron 22 using the suspension vertical fixing bolts 23. Arrange these in an array at the top and bottom of the steel structure body 1 to be coated with anti-corrosion and fireproof paint at each location. Manually adjust the manual strong magnetic switch on each set of weldless magnetic track base 2 to the "ON" state. Manually check if the weld-free magnetic track base 2 is secure and immovable. Calculate the theoretical length of the flexible annular track 3 and cut it into pieces. Machin (drill) bolt holes 33 for the flexible annular track on the upper flange plate of the upper flexible annular track 31 and the lower flange plate of the lower flexible annular track 32. Insert the upper and lower circumferential traveling trolleys 4 into the flexible annular track 3 from one end in advance. Then, fix the flexible annular track 3 to the connecting suspension angle iron 22 using the suspension horizontal fixing bolts 24. Perform a trial run (empty run) of the circumferential traveling trolleys 4 for 3-5 revolutions to ensure smooth operation. After the system is free of jamming, the vertical straight track 6 is fixed at both ends to the connecting crossbars 5 of the flexible annular upper track and the flexible annular lower track, respectively, by installing the connecting crossbars 5. The vertical track slider body 71 is pre-installed on the vertical straight track 6, the vertical traveling trolley 72 is installed on the vertical track slider body 71, the crossbeam 9 is installed on the vertical traveling trolley 72, the paint spray gun holder 82 is installed on the crossbeam 9, and the spray gun 81, nozzle, and their accessories are temporarily held and fixed by the paint spray gun holder 82. Adjust the distance and angle between the spray gun 81 and the nozzle and the steel structure body 1 to be coated with anti-corrosion and fireproof coating at the installation site. For example, the distance between the spray gun 81 and the surface of the steel structure body 1 to be coated with anti-corrosion and fireproof coating at the installation site should be 300-400mm. Adjust the spraying pressure to 0.6-0.8MPa at a 90° angle along the radial and circumferential directions of the spray gun 81 and the steel structure body 1 to be coated with anti-corrosion and fireproof coating at the installation site. Perform a no-load test run (empty run) of the circumferential traveling trolley 4 and the vertical traveling trolley 72 without adding material for 3-5 revolutions. After the process is smooth and without jamming, the coating is officially added and the coating operation is carried out.

[0072] The speed V1 of the circumferential traveling trolley 4 is the original horizontal coating speed, which is determined based on the material properties and process parameters such as the coating material, the number of coating layers, and the thickness of a single coating layer. Theoretically, the time T1 for the circumferential traveling trolley 4 to complete one revolution along the cross section of the steel structure body 1 to be coated with anti-corrosion and fireproof coating at the installation site is equal to the length L1 of the flexible circular track 3 divided by the speed V1 of the circumferential traveling trolley 4.

[0073] The vertical traveling trolley speed V2 is the height of the structure 1 to be coated with anti-corrosion and fireproof paint at the installation site, divided by the vertical sweeping spraying time of the circumferential traveling trolley 4 along the cross section of the structure 1 to be coated with anti-corrosion and fireproof paint at the installation site. (Theoretical calculation) H1 is the net planar distance from the spray gun 81 to the surface of the steel structure body 1 to be coated with anti-corrosion and fireproof coating at the installation site.

[0074] This invention, by setting up this simple semi-automatic painting device, eliminates the need for high-investment, precision painting robots and the need to discard the original complete painting equipment. By combining existing conventional equipment with the current flexible semi-automatic painting device, the intensity of on-site construction work can be greatly reduced, the risks of high-altitude construction can be lowered, and the construction quality such as coating thickness and coating appearance can be guaranteed.

[0075] Furthermore, this device only requires assembly, parameter adjustment, and trial operation during initial use. For subsequent multi-layer or multi-coat spraying applications, no disassembly is necessary. Simply wait for the previous coating to be mostly dry or cured before applying the next layer (approximately 6-12 hours, depending on the thickness of the previous coating and weather conditions such as temperature and humidity) until the desired film thickness or coating thickness is achieved. It can be switched between anti-corrosion coating mode, thin-film fire-retardant coating mode, and thick-film fire-retardant coating mode, adding to the device's functionality.

[0076] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0077] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A semi-automatic device for on-site anticorrosive and fireproof coating of steel structures, comprising a steel structure body (1) to be coated on site, characterized in that, It also includes a welding-free magnetic track base (2), a flexible ring track (3), a ring walking trolley (4), a connecting cross rod (5), a vertical linear track (6), a vertical track slider (7), and a spraying mechanism (8). The welding-free magnetic track base (2) is provided with two and is installed at the top and bottom of the steel structure body (1) respectively. The flexible ring track (3) includes a flexible ring upper track (31) and a flexible ring lower track (32), the upper flange of the flexible ring upper track (31) is connected with the welding-free magnetic track base (2), and the lower flange is in contact with the ring walking trolley (4); the upper flange of the flexible ring lower track (32) is in contact with the ring walking trolley (4), and the lower flange is connected with the welding-free magnetic track base (2). The ring walking trolley (4) is provided with one between the flexible ring upper track (31) and the flexible ring lower track (32), and is synchronously and slowly walked between the flexible ring upper track (31) and the flexible ring lower track (32). The connecting cross rod (5) is provided with two, which are symmetrically arranged between the ring walking trolley (4) and the vertical linear track (6). The vertical track slider (7) slides up and down on the vertical linear track (6), and the vertical track slider (7) is connected with the spraying mechanism (8) through a cross beam (9).

2. A kind of steel structure field anticorrosive fire-retardant coating semi-automatic device according to claim 1, characterized in that, The welding-free magnetic track base (2) includes a switch magnet base (21) and a connecting suspension angle iron (22). The switch magnet base (21) is provided with a manual strong magnet switch, and the switch magnet base (21) is connected with the connecting suspension angle iron (22) through a suspension facade fixing bolt (23), and the connecting suspension angle iron (22) is connected with the flexible ring track (3) through a suspension horizontal fixing bolt (24).

3. A kind of steel structure field anticorrosive fire-retardant coating semi-automatic device according to claim 1, characterized in that, The welding-free magnetic track base (2) is provided with a plurality of flexible ring track bolt holes (33), and the plurality of flexible ring track bolt holes (33) form a hole group on the welding-free magnetic track base (2).

4. The semi-automatic device for coating steel structure with on-site fireproof and anticorrosive paint according to claim 1, characterized in that, The ring walking trolley (4) includes a trolley rolling wheel (41), a trolley front and rear rolling wheel triangular connecting plate (42), a connecting shaft (43), and a ring walking trolley main connecting plate (44). The trolley rolling wheel (41) walks on both sides of the flexible ring track (3) web plate, the lower flange and the upper flange. The single trolley front and rear rolling wheel triangular connecting plate (42) connects the front and rear trolley rolling wheels (41) and bearings into one body, and the inner and outer trolley front and rear rolling wheel triangular connecting plates (42) connect the inner and outer trolley rolling wheels (41) into one body through the connecting shaft (43). The ring walking trolley main connecting plate (44) is centrally arranged on the connecting shaft (43), and is transversely connected with the connecting cross rod (5).

5. A kind of steel structure field anticorrosive fire-retardant coating semi-automatic device according to claim 4, characterized in that, The connecting cross rod (5) is a metal bending piece integrally formed, and the cross section is C-shaped, one end of which is connected with the ring walking trolley main connecting plate (44), and the other end is connected with the vertical linear track (6).

6. A kind of steel structure field anticorrosive fire-retardant coating semi-automatic device according to claim 1, characterized by, The vertical linear track (6) is a ball linear guide rail pair, and the vertical linear track (6) performs a circumferential outer wall profiling movement along the steel structure body (1) through the circumferential walking trolley (4).

7. A kind of steel structure field anticorrosive fire-retardant coating semi-automatic device according to claim 1, characterized in that, The vertical track slider (7) comprises a vertical track slider body (71), a vertical walking trolley (72) and a vertical walking trolley control box (73). The vertical walking trolley (72) is arranged on the vertical track slider body (71), and a driving device is arranged in the vertical walking trolley (72), which drives the vertical walking trolley (72) and the vertical track slider body (71) to linearly run on the vertical linear track (6). The vertical walking trolley control box (73) is arranged on the vertical walking trolley (72) and is connected with an external power supply, and is used for adjusting the running speed of the vertical walking trolley (72).

8. A kind of steel structure field anticorrosive fire-retardant coating semi-automatic device according to claim 7, characterized in that, The spraying mechanism (8) comprises a spray gun (81) and a paint spray gun holder (82), and the paint spray gun holder (82) is used for fixing the spray gun (81).

9. A kind of steel structure field anticorrosive fire-retardant coating semi-automatic device according to claim 8, characterized in that, One end of the cross beam (9) is detachably connected with the vertical walking trolley (72), and the other end is detachably connected with the paint spray gun holder (82).

10. The semi-automatic device for coating steel structure with on-site fireproof and anticorrosive paint according to claim 1, characterized in that, The spraying mechanism (8) sprays the paint in a conical space section and a fan-shaped vertical surface through the combined operation of the circumferential walking trolley (4) and the vertical walking trolley (72), and the sprayed paint is a continuous spiral surface on the steel structure body (1).

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