Waterproof sealing assembly for butt joint of steel structures

Abstract

The invention relates to the technical field of steel structures, and provides a waterproof sealing assembly for butt joint of steel structures, comprising a left steel column and a right steel column connected with one end of the left steel column; flange plates are arranged at the opposite ends of the left steel column and the right steel column, bolts are installed on the edges of the flange plates, and a sealing structure is installed at the joint of the left steel column and the right steel column. The sealing structure is arranged, the sealing strip is made of PVDF and has high corrosion resistance and hardness, when the steel structure is connected, the movable block continuously extrudes the sealing strip, so that the sealing strip is tightly attached to the surface of the steel column, the preliminary sealing effect is achieved, dust, impurities and the like are effectively prevented from entering the steel structure through a connector gap, and the sealing effect is improved. And the sealing gasket is driven to fully fill the connector, micro gaps of the connector are filled again by extruding the oil storage groove, and therefore the sealing effect of the sealing structure is enhanced, and steel corrosion and internal structure damage caused by rainwater invasion are avoided.

Description

Technical Field

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

[0002] Steel structure is crucial in community planning. It is easy to prefabricate and assemble quickly, suitable for high-density and diversified building needs in community planning (such as affordable housing and commercial complexes), shortens construction period and reduces impact on the surrounding environment. The large-span and column-free structure can optimize community public spaces (such as gymnasiums and exhibition centers) and improve functionality. Steel can be recycled, which is in line with the concept of low-carbon community planning. Lightweight 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 not easy to install and disassemble during the connection process, which reduces the connection effect of the steel structure. It includes a first steel body, the upper end and the lower end of the first steel body are 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 limited 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 to prevent unstable connection, will not affect the construction speed and quality, and is convenient for installation and disassembly of steel, thereby improving the connection effect of the steel structure;

[0004] The steel structure connection components mentioned above 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, and rainwater is prone to intrusion through the joints during use, resulting in steel corrosion and internal structure damage, thereby reducing the effective bearing area. For example, the internal corrosion depth of the steel column reaches 1mm, the bearing capacity decreases by about 10%-15%, and the corrosion pits form micro cracks, accelerating fatigue damage. Summary of the invention

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

[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 reinforcing plates, and the reinforcing plates are distributed at equal angles with respect to the midline points of the left steel column and the right steel column. The reinforcing 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 reinforcing 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, 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 the baffle, and a first spring is installed on one side of the connecting plate. The first spring enables rapid flipping when the baffle is unobstructed.

[0011] Preferably, a limit plate is provided on one side opposite to the connecting plate, and a slider is installed at one end of the limit plate, and a second spring is installed on one side opposite to the slider, and one side of the slider is beveled. The second spring can limit the baffle again after the nut is removed, so that the nut can be reused.

[0012] Preferably, a pressure block is provided on one side of the slider, and one end of the pressure block is in an angled shape, the angles of the pressure block and the slider match, and a connecting column is installed at 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 arranged on the outside of the sealing strip, convex strips are arranged at both ends of the sealing strip, and a limiting groove is arranged on the opposite side of the convex strip. The sealing strip fits the interface of the steel column to play a protective role on the outside.

[0014] Preferably, chambers are provided at both ends of the outer side of the sealing pad, a baffle is provided on the inner side of the sealing pad, and airbags are installed at both ends of the outer side of the baffle. The airbags expand to achieve a sealing effect inside the steel column.

[0015] Preferably, the sealing pad is provided with air ducts at equal angles with respect to the midline point, the air ducts are connected to the chamber and the airbag respectively, and the opposite sides of the airbag are provided with oil storage tanks. The airbag is squeezed so that the oil penetrates from the opening into the joint, thereby achieving the effect of oil sealing.

[0016] Compared with the prior art, the invention has the following beneficial effects: during the use of the waterproof sealing assembly for steel structure docking, the sealing strip forms protection at 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, avoiding the steel rust and internal structure damage caused by the intrusion of rainwater, and the bolts and nuts are tightly locked by the cooperation of the concave and convex nuts, which has the effect of preventing loosening and strengthening the firmness of the fixation;

[0017] 1. The sealing structure is provided. 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;

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

[0019] Furthermore, the sealing gasket is squeezed, and 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, so that the lubricating oil inside it flows out from the gap and fills the tiny gap inside the steel structure, thereby improving the sealing effect and having an anti-corrosion effect on the interface of the steel structure, thereby extending the service life;

[0020] 2. A convex nut is provided, the convex nut locks the bolt, and the concave nut presses the convex nut, so that the inner groove squeezes the convex block, so that the thread inside the convex block locks the thread on the surface of the bolt, so that 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 rotation of the concave nut. In this way, the convex block is always in a squeezed state, thereby 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 It is a left-view three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 A top view of a three-dimensional structure schematic diagram of the steel column connection process of the present invention;

[0024] Figure 3 It is a three-dimensional structural schematic diagram of the steel column connection process of the present invention when viewed from above;

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

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

[0027] Figure 6 It 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 It is a schematic diagram of the three-dimensional structure of the sealing gasket of the present invention;

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

[0030] Fig. 9 It is a schematic diagram of the three-dimensional structure of the convex nut of the present invention;

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

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

[0033] Fig.12 It is a schematic diagram of the three-dimensional structure of the baffle bar of the present invention;

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

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

[0036] Fig.15 For the present invention Fig.10 A partial enlarged schematic diagram of the 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. air bag; 535. oil storage tank. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0039] See also Figure 1-Figure 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 at one end thereof; a flange 2 is provided at the opposite ends of the left steel column 1 and the right steel column 3, and bolts 4 are installed at the edges of the flange 2, and a sealing structure 5 is installed at the connection between the left steel column 1 and the right steel column 3; a reinforcing sheet 21 is provided at the opposite ends of the flange 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 connection holes 22 are provided at the edges of the flange 2, and the connection holes 22 and the reinforcing sheets 21 are intersected. The bolts 4 are arranged in a staggered manner, and pass through the interior of the connecting hole 22. A convex nut 42 is installed at one end of the bolt 4, and a concave nut 41 is provided at one end of the convex nut 42. A convex block 43 is provided at one end of the convex nut 42, and a groove 44 is provided in the concave nut 41 outside the convex block 43. The sealing structure 5 includes 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 provided with a connecting groove 52, and a sealing strip 51 is installed outside the connecting groove 52, and a sealing gasket 53 is provided inside the sealing strip 51.

[0040] Reference Figure 3 , Figure 4 , Fig. 9 and Fig.10As shown, when the device is used, first align the interfaces of the left steel column 1 and the right steel column 3, place the sealing gasket 53 at the docking position, displace the two ends of the left steel column 1 and the right steel column 3, and then place the sealing strip 51 on the outside of the sealing gasket 53, rotate the left steel column 1 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, and then pass multiple groups of bolts 4 through the connection holes 22, rotate the convex nuts 42 and the bolts 4 to continuously lock, and lock and fix the left steel column 1 and the right steel column 3 through the bolts 4 and the connection holes 22, after the convex nut 42 is locked, rotate the concave nut 41 to continuously approach the convex nut 42, and in the process of the concave nut 41 approaching, the groove 44 at one end thereof contacts the convex block 43 at one end of the convex nut 42, and the groove 44 squeezes the convex block 43, so that the thread inside the convex block 43 firmly locks the bolt 4, and the initial anti-loosening between the nut and the bolt 4 is achieved;

[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 limiting plate 424 is provided on the opposite side of the connecting plate 422, and a slider 425 is installed at one end of the limiting 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 beveled shapes of the pressure block 427 and the slider 425 are matched, and a connecting column 428 is installed on one end of the pressure block 427;

[0042] Reference Figure 3 , Fig. 9 , Fig.11 and Fig.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 be squeezed inward, and the slider 425 and the limiting plate 424 fixed thereto are pushed to one side through the bevel design. When the connecting column 428 is squeezed into the inside of the convex nut 42 by the concave nut 41, the limiting plate 424 is pushed to the outermost side, so that the connecting plate 422 loses its resistance, and thus under the action of the tension of the first spring 423, the connecting plate 422 is driven to flip rapidly, so that the baffle 421 fixed thereto rotates and fits with the surface of the concave nut 41, and is locked with the baffle 421 through the hexagonal surface of the concave nut 41. The concave nut 41 is closed, thereby preventing the concave nut 41 from rotating, achieving continuous locking of the protrusion 43, realizing a firm connection with the bolt 4, and strengthening the anti-loosening and anti-falling effects. At the same time, when it is necessary to disassemble, the baffles 421 are opened on both sides to disassemble the concave nut 41. The concave nut 41 is away from the convex nut 42, and the connecting column 428 loses pressure. Under the tension of the second spring 426, the connecting column 428 is pushed to reset, and the limiting plate 424 is driven to limit the connecting plate 422 again. However, when installing the convex nut 42 and the concave nut 41, try to ensure that the hexagonal surfaces of the two sets of nuts correspond to each other. If necessary, use an asymmetric anti-loosening gasket such as a spring washer to force the hexagonal surfaces to be aligned through the gasket gap;

[0043] The inner side of the connection 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 convex strips 511, and the opposite side of the convex strips 511 is provided with a limiting groove 513;

[0044] Reference Figure 6 and Fig.13 As shown, when the device is used, 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 the beveled shape of the flanges 2 squeezes the convex strips 511 on the surface of the sealing strip 51, so that the sealing strip 51 continuously shrinks toward the surface 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 to seal the interface between the left steel column 1 and the right steel column 3, achieving a preliminary sealing effect.

[0045] Both ends of the outer side of the sealing gasket 53 are provided with chambers 531, and a baffle 532 is provided on the inner side of the sealing gasket 53. Both ends of the outer side of the baffle 532 are installed with air bags 534. The interior of the sealing gasket 53 is provided with air passages 533, and the air passages 533 are distributed at equal angles with respect to the midline point. The air passages 533 are respectively connected with the chamber 531 and the air bag 534. An oil storage tank 535 is provided on the opposite side of the air bag 534.

[0046] Reference Figure 7 , Figure 8 , Fig.12 , Fig.13 and Fig.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 chamber 531, so that the chamber 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 it is squeezed, it is continuously squeezed into the gap between the interface of 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 chamber 531 is squeezed, and its internal design The gas enters the airbag 534 through the air duct 533 and expands continuously, fully filling the inner walls of the left steel column 1 and the right steel column 3 with the support of the retaining strip 532, so that the internal gap is also effectively sealed, and the airbag 534 continues to expand, squeezing 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 avoid the invasion of rusty 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 protection scope of the present invention.

Claims

1. A waterproof sealing assembly for butt jointing of steel structures, comprising a left steel column (1) and a right steel column (3) connected at one end thereof; Features: The opposite ends of the left steel column (1) and the right steel column (3) are both provided with flanges (2), 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); 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: The opposite ends of the flanges (2) are each provided with a reinforcing sheet (21), 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).

3. A waterproof sealing assembly for steel structure jointing according to claim 2, characterized in that: The edges of the flanges (2) are all provided with connection holes (22), and the connection holes (22) and the reinforcing plates (21) are arranged alternately, and movable blocks (23) are all provided inside the connection holes (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), a convex nut (42) is installed at one end of the bolt (4), and a concave nut (41) is arranged at one end of the convex nut (42), a convex block (43) is arranged at one end of the convex nut (42), and a groove (44) is arranged inside the concave nut (41) outside the convex block (43).

5. A waterproof sealing assembly for steel structure jointing according to claim 4, characterized in that: Baffles (421) are hingedly connected on both sides of the convex nut (42), and a connecting plate (422) is provided at one end of the baffle (421), and a first spring (423) is installed on one side of the connecting plate (422).

6. A waterproof sealing assembly for steel structure jointing according to claim 5, characterized in that: A limiting plate (424) is provided on one side opposite to the connecting plate (422), and a slider (425) is installed at one end of the limiting plate (424). A second spring (426) is installed on one side opposite to the slider (425), and one side of the slider (425) is in an oblique angle.

7. A waterproof sealing assembly for steel structure jointing according to claim 6, characterized in that: A pressing block (427) is provided on one side of the slider (425), and one end of the pressing block (427) is in an oblique angle shape. The oblique angles of the pressing block (427) and the slider (425) match each other, and a connecting column (428) is installed on one end of the pressing block (427).

8. A 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 a limiting groove (513) is provided on the opposite side of the convex strip (511).

9. A waterproof sealing assembly for steel structure jointing according to claim 1, characterized in that: Both ends of the outer side of the sealing pad (53) are provided with chambers (531), the inner side of the sealing pad (53) is provided with a blocking strip (532), and both ends of the outer side of the blocking strip (532) are installed with air bags (534).

10. A waterproof sealing assembly for steel structure jointing according to claim 9, characterized in that: The sealing pad (53) is provided with an air vent (533) inside, and the air vent (533) is distributed at equal angles with respect to the midline point. The air vent (533) is respectively connected to the chamber (531) and the air bag (534), and an oil storage tank (535) is provided on the opposite side of the air bag (534).

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