A waterproof sealing assembly for steel structure docking

Abstract

The present invention relates to the technical field of steel structures, and provides a waterproof sealing assembly for connecting steel structures, comprising a left steel column and a right steel column connected to one end thereof; flanges are provided at opposite ends of the left and right steel columns, and bolts are installed at the edges of the flanges, and a sealing structure is installed at the connection between the left and right steel columns. The present invention is provided with a sealing structure, and the material of the sealing strip is PVDF, which has strong corrosion resistance and hardness. When the steel structure is connected, the movable block continuously squeezes the sealing strip so that it fits tightly with the surface of the steel column to form a preliminary sealing effect, effectively preventing dust, impurities, etc. from entering the interior of the steel structure through the interface gap, and driving the sealing gasket to fully fill the interface, and by squeezing the oil storage tank, the tiny gap of the interface is filled again, thereby strengthening the sealing effect of the sealing structure and avoiding steel rust and internal structure damage caused by rainwater intrusion.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structures, in particular to a waterproof sealing component for butt jointing of steel structures. Background Art

[0002] Steel structures are crucial in community planning. They are easy to prefabricate and assemble quickly, making them suitable for high-density, diverse building needs (such as affordable housing and commercial complexes) in community planning. They shorten construction periods and reduce impacts on the surrounding environment. Their large-span, column-free structures can optimize community public spaces (such as gymnasiums and exhibition centers) and enhance functionality. Furthermore, steel is recyclable, which aligns with the concept of low-carbon community planning. Lightweight construction reduces the need for foundation treatment and reduces resource consumption.

[0003] To this end, the patent with publication number CN213508905U discloses a steel structure connection assembly, which solves the problem that the current steel structure is inconvenient to install and disassemble during the connection process, thereby reducing the connection effect of the steel structure. The steel structure connection assembly includes a first steel body, wherein the upper end and the lower end of the first steel body are both connected to a fixing block, one side of the first steel body is connected to a stabilizing plate, the upper end of the stabilizing plate is connected to a threaded rod, one side of the stabilizing plate is connected to a screw rod, the surface of the screw rod is connected to a nut, the surface of the screw rod is connected to a connecting plate, the upper end of the connecting plate is connected to a limiting block, one side of the stabilizing plate is connected to a second steel body, one side of the first steel body is connected to a first mounting plate, and one side of the first mounting plate is connected to a second mounting plate; the utility model connects the steel structure column and the steel structure beam, prevents the connection from being unstable, does not affect the construction speed and quality, and is convenient for installing and disassembling the steel, thereby improving the connection effect of the steel structure;

[0004] The above-mentioned steel structure connection components connect the steel structure columns and steel structure beams to prevent unstable connections and improve the connection effect of the steel structure. However, the sealing of the steel structure joints is insufficient. During use, rainwater is easily allowed to penetrate through the joints, causing steel corrosion and internal structure damage, thereby reducing the effective bearing area. For example, if the rust depth inside the steel column reaches 1mm, the bearing capacity will drop by about 10%-15%, and the corrosion pits will form micro cracks, accelerating fatigue damage. Summary of the Invention

[0005] The purpose of the present invention is to provide a waterproof sealing assembly for steel structure butt jointing, so as to solve the defect of poor sealing performance of existing steel structure butt joint assemblies.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a waterproof sealing assembly for steel structure docking, comprising a left steel column and a right steel column connected to one end thereof; flanges are provided at the opposite ends of the left steel column and the right steel column, and bolts are installed at the edges of the flanges, and a sealing structure is installed at the connection between the left steel column and the right steel column; the sealing structure comprises a sealing strip, a connecting groove and a sealing gasket; connecting grooves are provided on the outer walls of the opposite ends of the left steel column and the right steel column, and sealing strips are installed on the outside of the connecting grooves, and a sealing gasket is provided on the inside of the sealing strip.

[0007] Preferably, the opposite ends of the flange are provided with reinforcement plates, and the reinforcement plates are distributed at equal angles with respect to the midline points of the left and right steel columns. The reinforcement plates make the connection between the flange and the steel column more secure.

[0008] Preferably, connection holes are provided at the edges of the flanges, and the connection holes and the reinforcement plates are arranged alternately, and movable blocks are provided on the inner sides of the connection holes.

[0009] Preferably, the bolt passes through the interior of the connecting hole, a convex nut is installed at one end of the bolt, and a concave nut is provided at one end of the convex nut, a protrusion is provided at one end of the convex nut, and a groove is provided in the concave nut outside the protrusion.

[0010] Preferably, baffles are hinged on both sides of the convex nut, and a connecting plate is provided at one end of each baffle, and a first spring is installed on one side of each connecting plate. The first spring enables rapid flipping when the baffle is unobstructed.

[0011] Preferably, a limit plate is provided on each opposing side of the connecting plate, and a slider is mounted on one end of each limit plate. A second spring is mounted on each opposing side of the slider, and one side of the slider is angled. The second spring can limit the baffle again after the nut is removed, thereby enabling the nut to be reused.

[0012] Preferably, a pressure block is provided on one side of each slider, with one end of the pressure block being angled, the angles of the pressure block and the slider matching each other, and a connecting column is mounted on one end of the pressure block. The angled design of the pressure block and the slider enables the longitudinal displacement of the pressure block to drive the lateral displacement of the slider.

[0013] Preferably, a trapezoidal block is provided on the outside of the sealing strip, convex strips are provided at both ends of the sealing strip, and a limiting groove is provided on the opposite side of the convex strips. The sealing strip fits the interface of the steel column and plays a protective role on the outside.

[0014] Preferably, chambers are provided at both ends of the outer side of the sealing gasket, a baffle is provided on the inner side of the sealing gasket, and air bags are installed at both ends of the outer side of the baffle. When the air bags are expanded, the interior of the steel column is sealed.

[0015] Preferably, the sealing gasket is provided with air vents arranged at equal angles about the midline, the air vents communicating with the chamber and the airbag, respectively. Oil reservoirs are provided on opposite sides of the airbag. The airbag squeezes, causing oil to seep from the opening into the joint, thereby achieving an oil seal.

[0016] Compared with the prior art, the present invention has the following beneficial effects: during use, the waterproof sealing assembly for steel structure docking forms protection on the outermost part of the interface, the sealing gasket fully fills the interface, and the tiny gap of the interface is filled again by squeezing the oil storage tank, thereby strengthening the sealing effect of the sealing structure, preventing steel corrosion and internal structure damage caused by rainwater intrusion, and the cooperation of the concave and convex nuts realizes the tight locking of the bolts and nuts, plays an anti-loosening effect, and strengthens the firmness of the fixation;

[0017] 1. The sealing structure is provided. The sealing strip is made of PVDF, which has strong corrosion resistance and hardness. When the steel structure is connected, the movable block continuously squeezes the sealing strip, making it fit tightly with the surface of the steel column, forming a preliminary sealing effect, effectively preventing dust and impurities from entering the interior of the steel structure through the interface gap;

[0018] Furthermore, the sealing strip is squeezed and the pressure is transferred to the internal sealing gasket, so that the sealing gasket and the interior of the sealing strip are fully filled, and the sealing gasket is continuously squeezed into the gap at the interface, filling the gap at the interface, strengthening the sealing effect of the steel structure and preventing liquid from entering the interior of the steel structure;

[0019] Furthermore, when the sealing gasket is squeezed, the gas inside the chamber is compressed into the inside of the airbag, so that the gap is filled and squeezed from the inside of the interface. When the airbag expands, it squeezes the oil storage tank, causing the lubricating oil inside it to flow out from the gap and fill the tiny gap inside the steel structure, thereby improving the sealing effect and playing a corrosion-resistant role on the interface of the steel structure, extending the service life.

[0020] 2. A convex nut is provided to lock the bolt. The concave nut applies pressure to the convex nut, and the groove inside the concave nut squeezes the convex block, so that the thread inside the convex block locks the thread on the bolt surface, making the convex nut and the bolt fit tightly, thereby preventing the convex nut from loosening.

[0021] Furthermore, when the concave nut approaches the convex nut, the connecting column is squeezed into the inside of the convex nut, which drives the limit plate to move. After the baffle loses its limit, it quickly flips over and overlaps with the hexagonal surface of the concave nut, avoiding the possibility of the concave nut rotating. In this way, the convex block is always in a squeezed state, strengthening the firmness of the fixation between the nut and the bolt, improving the stability of the steel structure, and preventing loosening and falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a left-view three-dimensional structural diagram of the present invention;

[0023] Figure 2 A schematic diagram of a three-dimensional structure of a steel column connection process from above according to the present invention;

[0024] Figure 3 This is a bottom-up three-dimensional structural diagram of the steel column connection process of the present invention;

[0025] Figure 4 It is a schematic diagram of the explosion three-dimensional structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of the steel column in the cutaway state of the present invention;

[0027] Figure 6 This is a schematic diagram of the three-dimensional structure of the sealing strip of the present invention in a half-section state;

[0028] Figure 7 Schematic diagram of the three-dimensional structure of the sealing gasket of the present invention;

[0029] Figure 8 This is a schematic diagram of the three-dimensional structure of the sealing gasket of the present invention in a connected state;

[0030] Figure 9 This is a schematic diagram of the three-dimensional structure of the convex nut of the present invention;

[0031] Figure 10 This is a schematic diagram of the three-dimensional structure of the concave nut in a half-section state of the present invention;

[0032] Figure 11 This is a schematic diagram of the three-dimensional structure of the convex nut in a half-section state of the present invention;

[0033] Figure 12 This is a schematic diagram of the three-dimensional structure of the baffle of the present invention;

[0034] Figure 13 For the present invention Figure 5 A in the middle is a partial enlarged schematic diagram of the three-dimensional structure;

[0035] Figure 14 For the present invention Figure 8 A partial enlarged schematic diagram of the three-dimensional structure at point B in the middle;

[0036] Figure 15 For the present invention Figure 10 Schematic diagram of the partially enlarged three-dimensional structure at point C in the middle.

[0037] Explanation of the reference numerals in the figure: 1. Left steel column; 2. Flange; 21. Reinforcement plate; 22. Connecting hole; 23. Movable block; 3. Right steel column; 4. Bolt; 41. Concave nut; 42. Convex nut; 421. Baffle; 422. Connecting plate; 423. First spring; 424. Limiting plate; 425. Slider; 426. Second spring; 427. Pressure block; 428. Connecting column; 43. Protrusion; 44. Groove; 5. Sealing structure; 51. Sealing strip; 511. Protrusion; 512. Trapezoidal block; 513. Limiting groove; 52. Connecting groove; 53. Sealing gasket; 531. Chamber; 532. Baffle; 533. Air duct; 534. Airbag; 535. Oil storage tank. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] See also Figures 1-15 The present invention provides a waterproof sealing assembly for steel structure docking, comprising a left steel column 1 and a right steel column 3 connected to one end thereof; flanges 2 are provided at opposite ends of the left steel column 1 and the right steel column 3, and bolts 4 are installed at the edges of the flanges 2, and a sealing structure 5 is installed at the connection between the left steel column 1 and the right steel column 3; reinforcing sheets 21 are provided at opposite ends of the flanges 2, and the reinforcing sheets 21 are distributed at equal angles with respect to the midline points of the left steel column 1 and the right steel column 3, and connecting holes 22 are provided at the edges of the flanges 2, and the connecting holes 22 and the reinforcing sheets 21 are intersected. Staggered arrangement, the bolts 4 pass through the interior of the connecting holes 22, one end of the bolts 4 is installed with a convex nut 42, and one end of the convex nut 42 is provided with a concave nut 41, one end of the convex nut 42 is provided with a protrusion 43, and the concave nut 41 outside the protrusion 43 is provided with a groove 44, the sealing structure 5 includes a sealing strip 51, a connecting groove 52 and a sealing gasket 53; the outer wall of the opposite end of the left steel column 1 and the right steel column 3 is provided with a connecting groove 52, and the outside of the connecting groove 52 is installed with a sealing strip 51, and the inside of the sealing strip 51 is provided with a sealing gasket 53;

[0040] Reference Figure 3 、 Figure 4 、 Figure 9 and Figure 10When the bolt 4 is in the locked position, the left and right steel columns 1 and 3 are locked together, and the sealing strip 51 is placed on the outside of the sealing strip 53. The left steel column 1 and the right steel column 3 are displaced at their two ends. Then, the sealing strip 51 is placed on the outside of the sealing strip 53. The left steel column 1 is rotated to make the connection hole 22 at one end thereof correspond to the connection hole 22 at one end of the right steel column 3. Then, multiple sets of bolts 4 are passed through the connection holes 22, and the convex nuts 42 are rotated and continuously locked with the bolts 4. The left steel column 1 and the right steel column 3 are locked and fixed through the bolts 4 and the connection holes 22. After the convex nut 42 is locked, the concave nut 41 is rotated and continuously moved closer to the convex nut 42. During the process of the concave nut 41 approaching, the groove 44 at one end contacts the protrusion 43 at one end of the convex nut 42, and the groove 44 squeezes the protrusion 43, so that the thread inside the protrusion 43 firmly locks the bolt 4, thereby achieving preliminary anti-loosening between the nut and the bolt 4.

[0041] Baffles 421 are hinged on both sides of the convex nut 42, and a connecting plate 422 is provided at one end of the baffle 421. A first spring 423 is installed on one side of the connecting plate 422. A limit plate 424 is provided on the opposite side of the connecting plate 422, and a slider 425 is installed on one end of the limit plate 424. A second spring 426 is installed on the opposite side of the slider 425. One side of the slider 425 is beveled. A pressure block 427 is provided on one side of the slider 425, and one end of the pressure block 427 is beveled. The bevel shapes of the pressure block 427 and the slider 425 match each other. A connecting column 428 is installed on one end of the pressure block 427.

[0042] Reference Figure 3 、 Figure 9 、 Figure 11 and Figure 15As shown, when the device is in use, the concave nut 41 and the convex nut 42 overlap, and the connecting column 428 at one end of the convex nut 42 is squeezed, driving the pressure block 427 to squeeze inward, and through the bevel design, the slider 425 and the limit plate 424 fixed thereto are pushed to one side. When the connecting column 428 is squeezed into the inside of the convex nut 42 by the concave nut 41, the limit plate 424 is pushed to the outermost side, causing the connecting plate 422 to lose its resistance. As a result, under the action of the tension of the first spring 423, the connecting plate 422 is driven to flip rapidly, causing the baffle 421 fixed thereto to rotate and fit with the surface of the concave nut 41, and the hexagonal surface of the concave nut 41 is locked with the baffle 421. The locking nut 41 is locked, and the locking nut 41 is locked. The locking nut 41 is locked, and the locking nut 41 is locked. The locking nut 41 is locked, and the locking nut 41 is locked. The locking nut 41 is locked, and the locking nut 41 is locked. The locking nut 41 is locked, and the locking nut 41 is locked. The locking nut 41 is locked, and the locking nut 41 is locked.

[0043] The inner side of the connecting hole 22 is provided with a movable block 23, the outer side of the sealing strip 51 is provided with a trapezoidal block 512, both ends of the sealing strip 51 are provided with a convex strip 511, and the opposite side of the convex strip 511 is provided with a limiting groove 513;

[0044] Reference Figure 6 and Figure 13 As shown, when the device is in use, during the process of locking the left steel column 1 and the right steel column 3, the two sets of flanges 2 are constantly approaching each other, driving the movable blocks 23 at their inner ends to continuously move relative to each other, and their beveled shapes squeeze the convex strips 511 on the surface of the sealing strip 51, causing the sealing strip 51 to continuously shrink toward the surfaces of the left steel column 1 and the right steel column 3. When the left steel column 1 and the right steel column 3 are locked, the trapezoidal block 512 slides into the interior of the connecting groove 52 under the action of pressure, and the two sets of sealing strips 51 overlap, sealing the interface between the left steel column 1 and the right steel column 3, achieving a preliminary sealing effect.

[0045] The sealing gasket 53 has chambers 531 at both ends of its outer side. A retaining bar 532 is provided on its inner side, and air bags 534 are mounted on both ends of the retaining bar 532. Air ducts 533 are provided inside the sealing gasket 53, and the air ducts 533 are distributed at equal angles about the midline. The air ducts 533 communicate with the chambers 531 and the air bags 534, respectively. An oil reservoir 535 is provided on the opposite side of the air bags 534.

[0046] Reference Figure 7 、 Figure 8 、 Figure 12 、 Figure 13 and Figure 14 As shown, when the device is in use, the material of the sealing gasket 53 is rubber. When the sealing strip 51 is compressed by pressure, the limiting groove 513 is squeezed into the cavity 531, so that the cavity 531 is placed in the internal space of the sealing strip 51 and fits tightly with its inner wall. At the same time, the outer diameter of the sealing gasket 53 is wider than the inner diameter. When squeezed, it continuously squeezes into the gap between the left steel column 1 and the right steel column 3. The wider position fits tightly with the interface, thereby enhancing the sealing effect of the interface. At the same time, the cavity 531 is squeezed, and its internal design The gas enters the interior of the airbag 534 through the air duct 533 and continues to expand, fully filling the inner walls of the left steel column 1 and the right steel column 3 with the support of the baffle 532, so that the internal gap is also effectively sealed, and the airbag 534 continues to expand, causing squeezing of the oil storage tank 535. Lubricating oil is placed inside the oil storage tank 535. After being squeezed, it flows out from the gap on one side and fills the extremely small gap between the sealing gasket 53 and the left steel column 1 and the right steel column 3 from the inside, which can prevent the invasion of rusting media and improve the sealing effect.

[0047] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A waterproof sealing assembly for connecting steel structures, comprising a left steel column (1) and a right steel column (3) connected at one end thereof; Its characteristics are: The left steel column (1) and the right steel column (3) are provided with flanges (2) at opposite ends, and bolts (4) are installed at the edges of the flanges (2), one end of the bolts (4) is provided with a convex nut (42), and one end of the convex nut (42) is provided with a concave nut (41), one end of the convex nut (42) is provided with a convex block (43), and a groove (44) is provided in the concave nut (41) outside the convex block (43), both sides of the convex nut (42) are hinged with baffles (421), and one end of the baffle (421) is provided with a connecting plate (422), and one side of the connecting plate (422) is provided with a first spring Spring (423), a limiting plate (424) is provided on one side opposite to the connecting plate (422), and a slider (425) is installed on one end of the limiting plate (424), a second spring (426) is installed on one side opposite to the slider (425), one side of the slider (425) is in an oblique angle shape, a pressure block (427) is provided on one side of the slider (425), and one end of the pressure block (427) is in an oblique angle shape, the oblique angle shapes of the pressure block (427) and the slider (425) are consistent, a connecting column (428) is installed on one end of the pressure block (427), and a sealing structure (5) is installed at the connection between the left steel column (1) and the right steel column (3); The sealing structure (5) comprises a sealing strip (51), a connecting groove (52) and a sealing gasket (53); The outer walls of the opposite ends of the left steel column (1) and the right steel column (3) are both provided with connection grooves (52), and a sealing strip (51) is installed outside the connection groove (52), and a sealing gasket (53) is provided inside the sealing strip (51).

2. A waterproof sealing assembly for steel structure jointing according to claim 1, characterized in that: Reinforcement plates (21) are provided at opposite ends of the flanges (2), and the reinforcement plates (21) are distributed at equal angles with respect to the midline points of the left steel column (1) and the right steel column (3).

3. A waterproof sealing assembly for steel structure jointing according to claim 2, characterized in that: The edges of the flanges (2) are each provided with connection holes (22), and the connection holes (22) and the reinforcing plates (21) are arranged in a staggered manner. A movable block (23) is provided on the inner side of each connection hole (22).

4. A waterproof sealing assembly for steel structure jointing according to claim 3, characterized in that: The bolt (4) passes through the interior of the connecting hole (22).

5. The waterproof sealing assembly for steel structure jointing according to claim 1, characterized in that: A trapezoidal block (512) is provided on the outer side of the sealing strip (51), convex strips (511) are provided at both ends of the sealing strip (51), and limiting grooves (513) are provided on the opposite side of the convex strips (511).

6. The waterproof sealing assembly for steel structure jointing according to claim 1, characterized in that: Both ends of the outer side of the sealing gasket (53) are provided with chambers (531), a retaining bar (532) is provided on the inner side of the sealing gasket (53), and both ends of the outer side of the retaining bar (532) are installed with air bags (534).

7. A waterproof sealing assembly for steel structure jointing according to claim 6, characterized in that: The sealing pad (53) is provided with air ducts (533) inside, and the air ducts (533) are distributed at equal angles with respect to the midline point. The air ducts (533) are respectively connected to the chamber (531) and the airbag (534). An oil storage tank (535) is provided on the opposite side of the airbag (534).

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