Fabricated steel structure supporting column

Abstract

The invention discloses an assembly type steel structure supporting column which comprises a supporting column body, a butt joint block and a butt joint rod are arranged in the supporting column body, a spraying mechanism is arranged on the butt joint block, a butt joint hole is formed in the bottom of the butt joint block, a reaction chamber is arranged in the butt joint block, and a medicament chamber and a sliding hole are formed between the butt joint hole and the reaction chamber. A solid raw material and a medicine pushing piston are arranged in the medicine chamber, a liquid raw material is arranged in the reaction chamber, a plug pin in sliding sealing connection is arranged in the sliding hole, the butt-joint blocks are detachably installed at the bottom and the top of the supporting column body, a pin hole matched with the plug pin is formed in the side face of the butt-joint rod, and the butt-joint rod is inserted into the butt-joint hole to be in sliding connection with the butt-joint blocks. The spraying mechanism comprises a sealing disc, a feeding pipe, a rotating spraying head and stirring blades. The steel structure supporting column has the advantages of being convenient and firm to install, and the problems that in the prior art, when a steel structure supporting column is installed, a large number of tools need to be used, and butt joint is difficult are solved.

Description

Technical Field

[0001] The invention relates to the technical field of metal support columns, in particular to an assembled steel structure support column. Background Art

[0002] In the field of modern construction and infrastructure construction, prefabricated steel structures are widely used due to their efficient and flexible construction characteristics. As the basic element for building a stable structural framework, the quality and assembly efficiency of the support column directly affect the quality and progress of the overall project. Traditional prefabricated steel structure support column docking technology mostly relies on mechanical fasteners or welding methods to achieve connection, which is not only time-consuming and labor-intensive, but also has high requirements for the construction environment and is difficult to meet the needs of large-scale and rapid construction. Especially in certain specific environments, such as high-altitude operations, small spaces, or projects with strict requirements on construction speed, the limitations of traditional docking methods are more significant.

[0003] The main problems with existing docking technology include: First, the docking requires high precision, which requires professional technicians to make fine adjustments, increasing the difficulty and cost of construction; second, the docking process often requires additional fasteners or welding, which is not only complicated, but may also leave safety hazards and affect the long-term stability of the structure; third, the internal anti-corrosion of the support column needs to be sprayed in the factory. The spraying and drying cycle is long, and there is still a certain amount of time from spraying to use, which causes aging of the internal paint and affects the protective effect. In addition, it is limited by the size of the internal space, which affects the spraying efficiency. Therefore, an assembled steel structure support column is needed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide an assembled steel structure support column, which has the advantages of easy installation and firmness, and solves the problems in the prior art that a large number of tools are needed to install the steel structure support column, and docking is difficult, which seriously affects the docking efficiency, and the internal coating of the steel structure support column has aged during use, affecting the service life.

[0005] To achieve the above object, the present invention provides the following technical solutions: an assembled steel structure support column, comprising a support column body, a docking block and a docking rod are arranged in the support column body, and a spraying mechanism is arranged on the docking block; A docking hole is provided at the bottom of the docking block, a reaction chamber is provided in the docking block, a medicine chamber and a sliding hole are provided between the docking hole and the reaction chamber, a solid raw material and a medicine pushing piston are provided in the medicine chamber, a liquid raw material is provided in the reaction chamber, a latch connected by a sliding seal is provided in the sliding hole, and the docking block is detachably mounted at the bottom and top of the supporting column body; The side of the docking rod is provided with a pin hole matched with the latch pin, and the docking rod is inserted into the docking hole and slidably connected with the docking block; The spraying mechanism includes a sealing disk, a feed pipe, a rotating nozzle and a stirring blade. The rotating nozzle is fixedly installed on the upper end of the sealing disk, the feed pipe is fixedly installed on the lower end of the sealing disk and is through-connected with the rotating nozzle, the stirring blade is fixedly installed on the side of the feed pipe, and the sealing disk is installed on the upper end of the medicine chamber and is rotatably connected thereto.

[0006] As a preferred assembled steel structure support column of the present invention, the number of the docking holes is eight, the solid raw materials include aluminum sulfate, epoxy resin, curing agent and film-forming agent, and the aluminum sulfate, epoxy resin, curing agent and film-forming agent are respectively filled in the eight medicine chambers according to 3:3:1:1, and the front end of the medicine chamber is provided with a sealing cover with an interference connection, and the liquid raw material is a sodium bicarbonate solution.

[0007] As a preferred assembled steel structure support column of the present invention, a booster piston is arranged in the docking hole, the booster piston is slidably and sealingly connected to the docking hole, and a limiting ring is arranged in the sliding hole.

[0008] As a preferred assembled steel structure support column of the present invention, the opening of the docking hole is a trumpet-shaped structure, and positioning magnets are provided on the top and bottom of the support column body.

[0009] As a preferred assembled steel structure support column of the present invention, a capsule bag is provided at the front end of the latch, the capsule bag is filled with structural glue, and the capsule bag is made of PVC film.

[0010] As a preferred assembled steel structure support column of the present invention, a sliding cavity is arranged in the feed pipe, a pressure limiting piston and a spring are arranged in the sliding cavity, the pressure limiting piston is connected to the feed pipe through a spring elastic seal, and a pressure relief channel is arranged on the side wall of the sliding cavity.

[0011] As a preferred assembled steel structure support column of the present invention, a rotor is provided on the side of the rotating nozzle, a spray hole is provided on the side of the rotor, and the angle between the spray hole and the horizontal plane is sixty degrees.

[0012] As a preferred assembled steel structure support column of the present invention, the bottom of the reaction chamber is a conical structure, the bottom of the feed pipe is flush with the bottom of the reaction chamber, the stirring blade is a spiral blade, and a sleeve is provided at the outer end of the stirring blade.

[0013] As a preferred assembled steel structure support column of the present invention, the outer end face of the docking block is provided with an external thread, the top and bottom inner end faces of the support column body are provided with internal threads, the docking block and the support column body are threadedly connected through the matching internal and external threads, the docking block is provided with a grip rod, and the inner end face of the support column body is provided with a limiting plate.

[0014] As a preferred embodiment of the assembled steel structure support column of the present invention, an overflow groove is provided on the side of the docking block, and the overflow groove is a plurality of vertical notches.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention greatly simplifies the alignment operation during assembly by arranging positioning magnets at the top and bottom of the support column body and combining them with a trumpet-shaped docking hole structure. The positioning magnets pre-guide adjacent support columns to approach and align them roughly, while the trumpet-shaped docking hole reduces the strict requirements for accuracy during docking, allowing workers to complete the docking operation faster. This design not only speeds up the assembly speed, but also improves the construction efficiency, especially in large-scale construction projects that require a large number of support columns to be deployed quickly, the advantages are more obvious.

[0016] 2. In the present invention, after the docking column is inserted into the docking hole, the solid raw material is pushed into the liquid raw material through the cooperation of the booster piston and the medicine pushing piston. The carbon dioxide gas pressure generated by the chemical reaction automatically pushes the pin into the pin hole of the docking rod, thereby realizing a self-locking mechanism without the need for external force intervention. This design not only simplifies the installation steps, but also significantly enhances the stability of the structure. Furthermore, the structural glue in the capsule bag breaks when the pin is under pressure and fills the docking gap. After it solidifies, it not only improves the sealing of the docking part, but also enhances the connection strength between the docking block and the support column body, effectively preventing the problem of loosening that may occur during long-term use.

[0017] 3. The present invention utilizes an antioxidant coating generated by a chemical reaction, which is automatically sprayed on the inside of the support column body to form a protective layer. This coating containing aluminum hydroxide not only has excellent antioxidant properties and delays the aging process of the support column material, but also has good flame retardant properties, which significantly improves the fire safety level of the structure. Moreover, spraying is performed when the equipment is installed to avoid spraying before leaving the factory, which causes the antioxidant coating to age too quickly. At the same time, production steps are saved and production efficiency is improved. In addition, by utilizing the excess coating generated during the reaction process to naturally overflow into the overflow tank and penetrate into the interface between the docking block and the support column body, the physical connection between the components is further enhanced after curing, which not only prevents waste of coating, but also additionally enhances the integrity and stability of the entire support structure, ensuring safety and durability for long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A top view of the present invention; Figure 3 For the present invention Figure 2 Middle AA section; Figure 4 For the present invention Figure 3 Enlarged view of point B in the middle; Figure 5 For the present invention Figure 3 Enlarged view of point C in the middle; Figure 6 It is a schematic diagram of the spraying mechanism structure of the present invention; Figure 7 It is a schematic diagram of the docking block structure of the present invention; Figure 8 It is a schematic diagram of the docking rod structure of the present invention; Fig. 9 It is a schematic diagram of the latch structure of the present invention.

[0019] In the figure: 1. support column body; 101. positioning magnet; 2. docking block; 201. docking hole; 2011. booster piston; 202. gripping rod; 203. overflow groove; 204. medicine chamber; 2041. solid raw material; 2042. medicine pushing piston; 2043. sealing cover; 205. sliding hole; 2051. limiting ring; 206. reaction chamber; 2061. liquid raw material; 207. latch; 2071. capsule bag; 3. docking rod; 301. pin hole; 4. spraying mechanism; 401. nozzle; 4011. rotor; 4012. spray hole; 402. sealing disk; 403. feed pipe; 4031. sliding cavity; 4032. pressure relief channel; 4033. spring; 4034. pressure limiting piston; 404. stirring blade; 405. sleeve. DETAILED DESCRIPTION

[0020] See also Figure 1-Figure 9 , an assembled steel structure support column, comprising a support column body 1, a docking block 2 and a docking rod 3 are arranged in the support column body 1, and a spraying mechanism 4 is arranged on the docking block 2; A docking hole 201 is provided at the bottom of the docking block 2, a reaction chamber 206 is provided in the docking block 2, a medicine chamber 204 and a sliding hole 205 are provided between the docking hole 201 and the reaction chamber 206, a solid raw material 2041 and a medicine pushing piston 2042 are provided in the medicine chamber 204, a liquid raw material 2061 is provided in the reaction chamber 206, a latch 207 with a sliding sealing connection is provided in the sliding hole 205, and the docking block 2 is detachably mounted at the bottom and top of the support column body 1; The side of the docking rod 3 is provided with a pin hole 301 that matches the latch pin 207. The docking rod 3 is inserted into the docking hole 201 and is slidably connected to the docking block 2. The spraying mechanism 4 includes a sealing disk 402, a feed pipe 403, a rotating nozzle 401 and a stirring blade 404. The rotating nozzle 401 is fixedly installed at the upper end of the sealing disk 402, the feed pipe 403 is fixedly installed at the lower end of the sealing disk 402 and is through-connected with the rotating nozzle 401, the stirring blade 404 is fixedly installed on the side of the feed pipe 403, and the sealing disk 402 is installed at the upper end of the medicine chamber 204 and is rotatably connected thereto.

[0021] Furthermore, the number of docking holes 201 is eight, and the solid raw material 2041 includes aluminum sulfate, epoxy resin, curing agent and film-forming agent, which are respectively loaded into eight medicine chambers 204 according to 3:3:1:1, and a sealing cover 2043 with an interference fit is provided at the front end of the medicine chamber 204, and the liquid raw material 2061 is a sodium bicarbonate solution.

[0022] When the solid raw material 2041 and the liquid raw material 2061 are mixed in the reaction chamber 206, aluminum sulfate and sodium bicarbonate react first to produce aluminum hydroxide powder precipitation and carbon dioxide. As the carbon dioxide increases, the pressure in the reaction chamber 206 increases continuously, thereby pushing the latch 207 to move, so that the latch 207 is inserted into the pin hole 301 of the docking rod 3. A large amount of foam will be generated during the production of carbon dioxide, which plays a surging and stirring role, thereby enhancing the mixing effect of the solid raw material 2041 and the liquid raw material 2061. The resin, curing agent, film-forming agent and aluminum hydroxide powder produced by the reaction precipitate to form an antioxidant coating, which is sprayed out by the spraying mechanism 4 under the pressure of carbon dioxide to spray the inner wall of the support column body 1.

[0023] Furthermore, a booster piston 2011 is disposed in the docking hole 201 , the booster piston 2011 is slidably and sealingly connected to the docking hole 201 , and a limit ring 2051 is disposed in the sliding hole 205 .

[0024] When the docking rod 3 is inserted into the docking hole 201, the docking rod 3 squeezes the boosting piston 2011, increasing the pressure on the upper end of the boosting piston 2011. Since the limiting pin 207 of the limit ring 2051 cannot move toward the end of the reaction chamber 206, the medicine pushing piston 2042 is forced to squeeze the solid raw material 2041, pushing the sealing cover 2043 to open, and the solid raw material 2041 falls into the reaction chamber 206 for reaction.

[0025] Furthermore, the opening of the docking hole 201 is a trumpet-shaped structure, and positioning magnets 101 are provided at the top and bottom of the support column body 1.

[0026] The trumpet-shaped docking hole 201 structure greatly reduces the required accuracy of the support column body 1 during docking. The adjacent support columns are pre-positioned by the positioning magnet 101, thereby improving the stability and convenience during docking. The trumpet-shaped structure facilitates the docking of the straw with the docking hole 201, reducing the accuracy requirements during docking.

[0027] Furthermore, a capsule bag 2071 is provided at the front end of the latch 207. The capsule bag 2071 contains structural adhesive and is made of PVC film.

[0028] When the latch 207 passes through the pin hole 301, the latch 207 squeezes the side wall of the docking hole 201, breaks the capsule belt, and allows the structural adhesive in the capsule belt to flow along the gap between the docking rod 3 and the docking hole 201. After the structural adhesive solidifies, the connection strength between the docking rod 3, the latch 207 and the docking block 2 is improved.

[0029] Furthermore, a sliding cavity 4031 is provided in the feed pipe 403 , a pressure limiting piston 4034 and a spring 4033 are provided in the sliding cavity 4031 , the pressure limiting piston 4034 is elastically sealed and connected to the feed pipe 403 via the spring 4033 , and a pressure relief channel 4032 is provided on the side wall of the sliding cavity 4031 .

[0030] As the solid raw material 2041 reacts with the liquid raw material 2061, carbon dioxide is continuously produced, thereby increasing the air pressure in the reaction chamber 206. The mixed raw materials squeeze the pressure-limiting piston 4034. When the pressure is large enough, the pressure-limiting piston 4034 passes over the pressure relief channel 4032, so that the raw materials flow from the pressure relief channel 4032 to the rotating nozzle 401 for spraying, thereby preventing the raw materials from overflowing from the rotating nozzle 401 when the pressure is insufficient in the initial stage of the reaction, thereby failing to achieve a spraying effect.

[0031] Furthermore, a rotor 4011 is provided on the side of the rotating nozzle 401, and a spray hole 4012 is provided on the side of the rotor 4011. The angle between the spray hole 4012 and the horizontal plane is sixty degrees.

[0032] When the mixed anti-oxidation coating is sprayed out from the spray hole 4012, the rotor 4011 drives the nozzle 401 to rotate under the reaction force of the spraying, thereby improving the uniformity of the coating spraying, and can drive the stirring blade 404 at the bottom to rotate to stir the anti-oxidation coating.

[0033] Furthermore, the bottom of the reaction chamber 206 is a conical structure, the bottom of the feed pipe 403 is flush with the bottom of the reaction chamber 206 , the stirring blade 404 is a spiral blade, and a sleeve 405 is provided at the outer end of the stirring blade 404 .

[0034] When the rotating nozzle 401 drives the stirring blade 404 to rotate, the stirring blade 404 lifts the aluminum hydroxide particles precipitated at the bottom upward to keep the aluminum hydroxide particles suspended, thereby improving the uniformity of the aluminum hydroxide in the coating, and the conical structure of the reaction chamber 206 allows the mixed antioxidant coating to be sprayed out as completely as possible, thereby improving the utilization rate of raw materials.

[0035] Furthermore, the outer end face of the docking block 2 is provided with an external thread, and the top and bottom inner end faces of the support column body 1 are provided with internal threads. The docking block 2 and the support column body 1 are threadedly connected through the matching internal and external threads. A grip rod 202 is provided on the docking block 2, and a limiting plate is provided on the inner end face of the support column body 1.

[0036] By grasping the handle 202 and rotating the docking block 2, the docking block 2 and the support column body 1 are gradually tightened and fixed, and the feed depth of the docking block 2 is limited by the limit plate, thereby ensuring that the lower end surface or the upper end surface of the docking block 2 and the support column body 1 can remain flush after installation.

[0037] Furthermore, overflow grooves 203 are provided on the side of the docking block 2, and the overflow grooves 203 are a plurality of vertical notches.

[0038] The excess anti-oxidation coating flows into the overflow groove 203 along the side wall of the support column body 1 and penetrates into the threaded gap of the docking block 2. When the anti-oxidation coating solidifies, the docking block 2 and the support column body 1 are bonded and fixed, thereby preventing the support column body 1 from rotating or displacing loose, thereby improving the stability of the support column.

[0039] When two groups of support columns in this embodiment are docked, according to the engineering design requirements, the support columns to be docked are hoisted to the predetermined position by the hoisting equipment, and the positioning magnets 101 are used to preliminarily align the upper and lower adjacent support columns to ensure that they are roughly aligned. The operator guides the docking rod 3 into the docking hole 201. Thanks to the trumpet-shaped design, it can be smoothly inserted even at a certain angle deviation. Once the docking rod 3 is fully inserted into the docking hole 201, the docking rod 3 pushes the booster piston 2011 to move upward, and the air pressure squeezes the medicine pushing piston 2042, pushing the preset solid raw material 2041 into the reaction chamber 206 to start contacting with the liquid raw material 2061 and undergoing a chemical reaction, rapidly generating carbon dioxide gas. This gas pressure The previously installed latch 207 is pushed to automatically enter the preset pin hole 301 to achieve self-locking docking. The latch 207 squeezes the capsule bag 2071, and the internal structural adhesive ruptures due to pressure and flows out, automatically flowing out and filling the docking gap. The antioxidant coating containing aluminum hydroxide generated by the chemical reaction is automatically sprayed onto the inner surface of the support column under the impetus of carbon dioxide gas. This process not only does not require human intervention, but also ensures uniform coverage of the coating, thereby enhancing the antioxidant and fireproof properties of the support column. Excess coating will naturally overflow and flow to the connection between the docking block 2 and the support column body 1, as well as the gap between the support columns, further strengthening these key connection points, forming a more solid overall structure after solidification.

[0040] See also Figure 1-Figure 9 , see Figure 1-Figure 9 , an assembled steel structure support column, comprising a support column body 1, a docking block 2 and a docking rod 3 are arranged in the support column body 1, and a spraying mechanism 4 is arranged on the docking block 2; A docking hole 201 is provided at the bottom of the docking block 2, a reaction chamber 206 is provided in the docking block 2, a medicine chamber 204 and a sliding hole 205 are provided between the docking hole 201 and the reaction chamber 206, a solid raw material 2041 and a medicine pushing piston 2042 are provided in the medicine chamber 204, a liquid raw material 2061 is provided in the reaction chamber 206, a latch 207 with a sliding sealing connection is provided in the sliding hole 205, and the docking block 2 is detachably mounted at the bottom and top of the support column body 1; The side of the docking rod 3 is provided with a pin hole 301 that matches the latch pin 207. The docking rod 3 is inserted into the docking hole 201 and is slidably connected to the docking block 2. The spraying mechanism 4 includes a sealing disk 402, a feed pipe 403, a rotating nozzle 401 and a stirring blade 404. The rotating nozzle 401 is fixedly installed at the upper end of the sealing disk 402, the feed pipe 403 is fixedly installed at the lower end of the sealing disk 402 and is through-connected with the rotating nozzle 401, the stirring blade 404 is fixedly installed on the side of the feed pipe 403, and the sealing disk 402 is installed at the upper end of the medicine chamber 204 and is rotatably connected thereto.

[0041] Furthermore, the number of docking holes 201 is eight, and the solid raw material 2041 includes aluminum sulfate, epoxy resin, curing agent and film-forming agent, which are respectively loaded into eight medicine chambers 204 according to 3:3:1:1, and a sealing cover 2043 with an interference fit is provided at the front end of the medicine chamber 204, and the liquid raw material 2061 is a sodium bicarbonate solution.

[0042] When the solid raw material 2041 and the liquid raw material 2061 are mixed in the reaction chamber 206, aluminum sulfate and sodium bicarbonate react first to produce aluminum hydroxide powder precipitation and carbon dioxide. As the carbon dioxide increases, the pressure in the reaction chamber 206 increases continuously, thereby pushing the latch 207 to move, so that the latch 207 is inserted into the pin hole 301 of the docking rod 3. A large amount of foam will be generated during the production of carbon dioxide, which plays a surging and stirring role, thereby enhancing the mixing effect of the solid raw material 2041 and the liquid raw material 2061. The resin, curing agent, film-forming agent and aluminum hydroxide powder produced by the reaction precipitate to form an antioxidant coating, which is sprayed out by the spraying mechanism 4 under the pressure of carbon dioxide to spray the inner wall of the support column body 1.

[0043] Furthermore, a booster piston 2011 is disposed in the docking hole 201 , the booster piston 2011 is slidably and sealingly connected to the docking hole 201 , and a limit ring 2051 is disposed in the sliding hole 205 .

[0044] When the docking rod 3 is inserted into the docking hole 201, the docking rod 3 squeezes the boosting piston 2011, increasing the pressure on the upper end of the boosting piston 2011. Since the limiting pin 207 of the limit ring 2051 cannot move toward the end of the reaction chamber 206, the medicine pushing piston 2042 is forced to squeeze the solid raw material 2041, pushing the sealing cover 2043 to open, and the solid raw material 2041 falls into the reaction chamber 206 for reaction.

[0045] Furthermore, the opening of the docking hole 201 is a trumpet-shaped structure, and positioning magnets 101 are provided at the top and bottom of the support column body 1.

[0046] The trumpet-shaped docking hole 201 structure greatly reduces the required accuracy of the support column body 1 during docking. The adjacent support columns are pre-positioned by the positioning magnet 101, thereby improving the stability and convenience during docking. The trumpet-shaped structure facilitates the docking of the straw with the docking hole 201, reducing the accuracy requirements during docking.

[0047] Furthermore, a capsule bag 2071 is provided at the front end of the latch 207. The capsule bag 2071 contains structural adhesive and is made of PVC film.

[0048] When the latch 207 passes through the pin hole 301, the latch 207 squeezes the side wall of the docking hole 201, breaks the capsule belt, and allows the structural adhesive in the capsule belt to flow along the gap between the docking rod 3 and the docking hole 201. After the structural adhesive solidifies, the connection strength between the docking rod 3, the latch 207 and the docking block 2 is improved.

[0049] Furthermore, a sliding cavity 4031 is provided in the feed pipe 403 , a pressure limiting piston 4034 and a spring 4033 are provided in the sliding cavity 4031 , the pressure limiting piston 4034 is elastically sealed and connected to the feed pipe 403 via the spring 4033 , and a pressure relief channel 4032 is provided on the side wall of the sliding cavity 4031 .

[0050] As the solid raw material 2041 reacts with the liquid raw material 2061, carbon dioxide is continuously produced, thereby increasing the air pressure in the reaction chamber 206. The mixed raw materials squeeze the pressure-limiting piston 4034. When the pressure is large enough, the pressure-limiting piston 4034 passes over the pressure relief channel 4032, so that the raw materials flow from the pressure relief channel 4032 to the rotating nozzle 401 for spraying, thereby preventing the raw materials from overflowing from the rotating nozzle 401 when the pressure is insufficient in the initial stage of the reaction, thereby failing to achieve a spraying effect.

[0051] Furthermore, a rotor 4011 is provided on the side of the rotating nozzle 401, and a spray hole 4012 is provided on the side of the rotor 4011. The angle between the spray hole 4012 and the horizontal plane is sixty degrees.

[0052] When the mixed anti-oxidation coating is sprayed out from the spray hole 4012, the rotor 4011 drives the nozzle 401 to rotate under the reaction force of the spraying, thereby improving the uniformity of the coating spraying, and can drive the stirring blade 404 at the bottom to rotate to stir the anti-oxidation coating.

[0053] Furthermore, the bottom of the reaction chamber 206 is a conical structure, the bottom of the feed pipe 403 is flush with the bottom of the reaction chamber 206 , the stirring blade 404 is a spiral blade, and a sleeve 405 is provided at the outer end of the stirring blade 404 .

[0054] When the rotating nozzle 401 drives the stirring blade 404 to rotate, the stirring blade 404 lifts the aluminum hydroxide particles precipitated at the bottom upward to keep the aluminum hydroxide particles suspended, thereby improving the uniformity of the aluminum hydroxide in the coating, and the conical structure of the reaction chamber 206 allows the mixed antioxidant coating to be sprayed out as completely as possible, thereby improving the utilization rate of raw materials.

[0055] Furthermore, the outer end face of the docking block 2 is provided with an external thread, and the top and bottom inner end faces of the support column body 1 are provided with internal threads. The docking block 2 and the support column body 1 are threadedly connected through the matching internal and external threads. A grip rod 202 is provided on the docking block 2, and a limiting plate is provided on the inner end face of the support column body 1.

[0056] By grasping the handle 202 and rotating the docking block 2, the docking block 2 and the support column body 1 are gradually tightened and fixed, and the feed depth of the docking block 2 is limited by the limit plate, thereby ensuring that the lower end surface or the upper end surface of the docking block 2 and the support column body 1 can remain flush after installation.

[0057] Furthermore, overflow grooves 203 are provided on the side of the docking block 2, and the overflow grooves 203 are a plurality of vertical notches.

[0058] The excess anti-oxidation coating flows into the overflow groove 203 along the side wall of the support column body 1 and penetrates into the threaded gap of the docking block 2. When the anti-oxidation coating solidifies, the docking block 2 and the support column body 1 are bonded and fixed, thereby preventing the support column body 1 from rotating or displacing loose, thereby improving the stability of the support column.

[0059] In this embodiment, when the support column is installed on the ground, according to the engineering design requirements, the docking rod 3 is pre-buried at the position where it needs to be installed, or the threaded rod is reserved. The pre-buried installation rod is constructed according to the steps of Example 1. When the threaded rod is reserved, the support column to be docked is hoisted to the predetermined position by the hoisting equipment. The operator guides the docking rod 3 into the docking hole 201. Thanks to the trumpet-shaped design, it can be smoothly inserted even at a certain angle deviation. Once the threaded rod is fully inserted into the docking hole 201, the docking rod 3 pushes the booster piston 2011 to move upward, and the air pressure squeezes the medicine pushing piston 2042 to push the preset solid The body raw material 2041 is pushed into the reaction chamber 206 and starts to contact with the liquid raw material 2061 and undergo a chemical reaction, rapidly generating carbon dioxide gas. The gas pressure pushes the previously installed pin 207, and the pin 207 squeezes the side wall of the threaded rod, causing the capsule bag 2071 to rupture. The internal structural adhesive ruptures due to pressure and flows out, automatically flows out and fills the gap between the threaded rod and the docking hole 201. After solidification, the threaded rod is fixed to the docking block 2. The antioxidant coating containing aluminum hydroxide generated by the chemical reaction is automatically sprayed onto the inner surface of the support column under the push of the carbon dioxide gas.

[0060] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An assembled steel structure support column, comprising a support column body (1), characterized in that: A docking block (2) and a docking rod (3) are arranged in the support column body (1), and a spraying mechanism (4) is arranged on the docking block (2); A docking hole (201) is provided at the bottom of the docking block (2), a reaction chamber (206) is provided in the docking block (2), a medicine chamber (204) and a sliding hole (205) are provided between the docking hole (201) and the reaction chamber (206), a solid raw material (2041) and a medicine pushing piston (2042) are provided in the medicine chamber (204), a liquid raw material (2061) is provided in the reaction chamber (206), a latch (207) for sliding sealing connection is provided in the sliding hole (205), and the docking block (2) is detachably mounted at the bottom and top of the support column body (1); A pin hole (301) that cooperates with the latch pin (207) is provided on the side of the docking rod (3); the docking rod (3) is inserted into the docking hole (201) and is slidably connected to the docking block (2); The spraying mechanism (4) comprises a sealing disk (402), a feeding pipe (403), a rotating nozzle (401) and a stirring blade (404); the rotating nozzle (401) is fixedly mounted on the upper end of the sealing disk (402); the feeding pipe (403) is fixedly mounted on the lower end of the sealing disk (402) and is connected to the rotating nozzle (401); the stirring blade (404) is fixedly mounted on the side of the feeding pipe (403); and the sealing disk (402) is mounted on the upper end of the medicine chamber (204) and is rotatably connected thereto.

2. The assembled steel structure support column according to claim 1, characterized in that: The number of the docking holes (201) is eight. The solid raw material (2041) includes aluminum sulfate, epoxy resin, curing agent and film-forming agent. The aluminum sulfate, epoxy resin, curing agent and film-forming agent are respectively filled into the eight reagent chambers (204) in a ratio of 3:3:1:

1. The front end of the reagent chamber (204) is provided with a sealing cover (2043) with an interference fit. The liquid raw material (2061) is a sodium bicarbonate solution.

3. The assembled steel structure support column according to claim 2, characterized in that: A booster piston (2011) is arranged in the docking hole (201), the booster piston (2011) is connected to the docking hole (201) in a sliding and sealing manner, and a limit ring (2051) is arranged in the sliding hole (205).

4. The assembled steel structure support column according to claim 3, characterized in that: The opening of the docking hole (201) is a trumpet-shaped structure, and positioning magnets (101) are provided at the top and bottom of the support column body (1).

5. The assembled steel structure support column according to claim 4, characterized in that: A capsule bag (2071) is provided at the front end of the latch (207), the capsule bag (2071) contains structural adhesive, and the capsule bag (2071) is made of PVC film.

6. The assembled steel structure support column according to claim 1, characterized in that: A sliding cavity (4031) is provided in the feed pipe (403), a pressure-limiting piston (4034) and a spring (4033) are provided in the sliding cavity (4031), the pressure-limiting piston (4034) and the feed pipe (403) are elastically sealed and connected via the spring (4033), and a pressure relief channel (4032) is provided on the side wall of the sliding cavity (4031).

7. The assembled steel structure support column according to claim 1, characterized in that: A rotor (4011) is arranged on the side of the rotating spray head (401), and a spray hole (4012) is arranged on the side of the rotor (4011), and the angle between the spray hole (4012) and the horizontal plane is sixty degrees.

8. The assembled steel structure support column according to claim 7, characterized in that: The bottom of the reaction chamber (206) is a conical structure, the bottom of the feed pipe (403) is flush with the bottom of the reaction chamber (206), the stirring blade (404) is a spiral blade, and a sleeve (405) is provided at the outer end of the stirring blade (404).

9. The assembled steel structure support column according to claim 1, characterized in that: The outer end surface of the docking block (2) is provided with an external thread, and the top and bottom inner end surfaces of the support column body (1) are provided with internal threads. The docking block (2) and the support column body (1) are threadedly connected via the matching internal and external threads, and a gripping rod (202) is provided on the docking block (2).

10. The assembled steel structure support column according to claim 9, characterized in that: An overflow groove (203) is provided on the side of the docking block (2), and the overflow groove (203) is a plurality of vertical notches.

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