Anti-slip assembly type steel structure locking and positioning device

Abstract

The present application relates to the technical fields of fabricated steel structure, and discloses a kind of anti-slip fabricated steel structure locking positioning device, including main load-bearing column, the top of main load-bearing column is provided with lengthening column, and the outer surface of main load-bearing column is provided with connecting steel beam;Adjusting mechanism is arranged outside main load-bearing column, adjusting mechanism includes recessed groove being opened in the surface of main load-bearing column and sliding block being slidably connected in recessed groove, and the clamping plate being connected to the side of sliding block is pressed in the top of connecting steel beam to limit;Positioning mechanism is provided at the top of adjusting mechanism, and the bottom end of the positioning plate of positioning mechanism is clamped into the inside of connecting steel beam, and is fastened in combination with internal spring and positioning column;Protection mechanism is provided outside main load-bearing column and lengthening column.The present application is compressed by adjusting mechanism and clamps connecting steel beam, cooperates with positioning mechanism to be locked in transverse and longitudinal double, then is protected by protection mechanism splice node, improves the stability of assembly connection, prevents component to slip.

Description

Technical Field

[0001] This invention relates to the field of prefabricated steel structure technology, specifically to an anti-slip prefabricated steel structure locking and positioning device. Background Technology

[0002] Prefabricated steel structures are widely used in modern construction engineering. The assembly quality of the load-bearing columns and connecting steel beams, as well as the nodes between the upper and lower columns, directly affects the stability of the overall frame. Existing steel structure node connections mostly use high-strength bolts for direct fixing or conventional clamps for rigid splicing. In actual service environments, steel structures are subjected to long-term dynamic load changes or external vibrations. Conventional rigid connection parts lack elastic buffering and multi-dimensional locking mechanisms. The assembly gap will gradually increase with stress changes, which will lead to the lateral pull-out or longitudinal slippage of the connecting steel beams.

[0003] Meanwhile, the flange joints between the main load-bearing columns and the extension columns are often exposed, allowing rainwater and corrosive gases to enter the interior along the joint gaps, causing the fasteners to rust and corrode, shortening the service life of the components and weakening the load-bearing capacity of the joints. Existing flange connections rely solely on the rigid friction of the end faces and the shear force of the bolts to resist lateral shear loads, without any external auxiliary anti-displacement protection or flexible damping structures, making it difficult to meet the anti-slip positioning requirements under complex working conditions. Therefore, a new locking and positioning device is needed in this field to overcome the shortcomings of existing technologies. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an anti-slip prefabricated steel structure locking and positioning device, which solves the problems of steel beam slippage caused by the lack of a multi-dimensional locking mechanism in existing steel structure node connections, and corrosion and misalignment caused by the lack of protection at column splicing points.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an anti-slip prefabricated steel structure locking and positioning device, comprising a main load-bearing column, an extension column at the top of the main load-bearing column; a connecting steel beam on the outer surface of the main load-bearing column; an adjustment mechanism on the outer surface of the main load-bearing column, the adjustment mechanism comprising a concave groove and a clamping plate; the concave groove is formed on the outer surface of the main load-bearing column; the side surface of the clamping plate is slidably connected to the interior of the concave groove; the clamping plate is located at the top of the connecting steel beam; a positioning mechanism is located at the top of the adjustment mechanism, the positioning mechanism comprising a positioning plate; the bottom end of the positioning plate is located inside the connecting steel beam; a protective mechanism is located on the outer surface of the main load-bearing column; the protective mechanism is located on the outer surface of the extension column; a second bolt is located at the top of the clamping plate; the bottom end of the second bolt is threadedly connected to the interior of the connecting steel beam.

[0006] By adjusting the mechanism to clamp the top of the connecting steel beam, and cooperating with the positioning mechanism to insert into the connecting steel beam, the node connection position is limited and locked. The protective mechanism is used to wrap the outer splicing seam, thereby improving the stability of the assembly connection.

[0007] Furthermore, the adjustment mechanism includes a slider; the slider is slidably connected inside the concave groove; the slider is fixedly connected to the surface of the clamping plate.

[0008] Furthermore, a limiting post is fixedly connected inside the concave groove; the slider is slidably connected inside to the outer surface of the limiting post; a first spring is sleeved on the outer surface of the limiting post; the bottom end of the first spring is fixedly connected to the top of the slider, and the slider slides along the concave groove to adapt to the assembly height of the connecting steel beam. The first spring, in conjunction with the limiting post, provides downward elastic force to the slider, driving the clamping plate to press against the surface of the connecting steel beam, thereby reducing the assembly gap and providing structural buffer.

[0009] Furthermore, a reinforcing plate is provided on the top of the clamping plate; the outer surface of the second bolt is located inside the clamping plate, and the reinforcing plate is used to improve the structural rigidity of the clamping plate and reduce the probability of deformation under stress; the second bolt passes through the clamping plate and is structurally fastened to the connecting steel beam.

[0010] Furthermore, the positioning mechanism includes a knob and a connecting post; the bottom surface of the knob is fixedly connected to the connecting post; a second spring is sleeved on the outer surface of the connecting post; the bottom end of the connecting post is fixedly connected to the top of the positioning plate.

[0011] Furthermore, the top end of the second spring is disposed on the bottom surface of the knob; the bottom end of the second spring is disposed on the top of the clamping plate; and a through hole is provided inside the positioning plate.

[0012] Furthermore, the top and bottom of the connecting steel beam are provided with slots; the side surface of the positioning plate is slidably connected to the inner surface of the slots.

[0013] Furthermore, a positioning post is fixedly connected to the inner surface of the connecting steel beam; the positioning post is located on one side of the slot, pressing down the knob causes the connecting post and the positioning plate to compress the second spring and move downward, so that the positioning plate is inserted into the slot of the connecting steel beam to achieve lateral limitation; rotating the knob makes the through hole on the positioning plate align with the positioning post, and after releasing the pressure, the second spring rebounds, causing the positioning plate to move upward and fit onto the outer surface of the positioning post, using the continuous elastic force of the second spring to maintain the positioning plate in a limited state, restricting the connecting steel beam from lateral and longitudinal movement.

[0014] Furthermore, the protective mechanism includes a protective plate and rubber strips; multiple rubber strips are fixedly connected to the inner surface of the protective plate.

[0015] Furthermore, a first bolt is provided on the outer surface of the protective plate; the outer surface of the first bolt is located inside the protective plate; one end of the first bolt is threadedly connected to the outer surface of the extension post.

[0016] The protective cover is fixed to the outside of the joint between the main load-bearing column and the extension column by the first bolt, which shields the internal structure from external environmental corrosion sources. During the tightening process, the rubber strip is pressed against the column surface, increasing the frictional resistance of the contact surface and limiting the lateral displacement of the column when subjected to lateral shear force.

[0017] This invention provides an anti-slip prefabricated steel structure locking and positioning device. It has the following beneficial effects: 1. This invention provides an adjustment mechanism on the outer surface of the main load-bearing column. The slider inside the sliding concave groove adapts to the assembly height of connecting steel beams of different specifications. The first spring, in conjunction with the limiting column, provides downward elastic force to the slider, so that the clamping plate is tightly pressed onto the connecting steel beam, reducing the assembly gap. At the same time, the reinforcement plate is used to strengthen the structural strength of the clamping plate to reduce the probability of bending under stress. The second bolt is used to fasten it through, improving the tightness of the overall node connection and the buffering and shock resistance.

[0018] 2. This invention uses a positioning mechanism at the top of the adjustment mechanism. Pressing down the knob causes the connecting column and the positioning plate to move downward against the force of the second spring, so that the positioning plate is inserted into the slot of the connecting steel beam to complete the lateral limiting. After rotating the knob to align the through hole with the positioning column, the pressure is released, and the second spring rebounds to push the positioning plate to move upward along the positioning column and fit together. The continuous elastic force of the second spring is used to keep it pressed, thereby achieving multi-dimensional locking of the connecting steel beam in both the lateral and longitudinal directions, and preventing the steel beam from slipping when subjected to vibration and stress.

[0019] 3. This invention provides a protective mechanism at the joint between the main load-bearing column and the extension column. A protective plate with rubber strips is covered and fastened to the outside of the flange joint. The protective plate forms a physical barrier to reduce the contact of external moisture or corrosive gases with the internal fasteners. The internal rubber strips are deformed under pressure and adhere tightly to the surface of the column and flange. The frictional resistance limits the lateral displacement of the upper and lower columns when subjected to lateral shear force, while also giving full play to the flexible shock absorption effect of the rubber's own elasticity. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the concave groove of the present invention; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the clamping plate of the present invention; Figure 5 This is a schematic diagram of the card slot structure of the present invention; Figure 6 This is a schematic diagram of the structure of the protective plate of the present invention.

[0021] The components include: 1. Main load-bearing column; 2. Connecting steel beam; 3. Extension column; 4. Adjustment mechanism; 41. Sliding block; 42. Concave groove; 43. Clamping plate; 44. Reinforcing plate; 45. Limiting post; 46. First spring; 5. Positioning mechanism; 51. Knob; 52. Second spring; 53. Connecting column; 54. Positioning plate; 55. Through hole; 56. Positioning post; 57. Slot; 6. Protective mechanism; 61. Protective plate; 62. Rubber strip; 63. First bolt; 7. Second bolt. Detailed Implementation

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see the appendix Figure 1 -Appendix Figure 4 This invention provides an anti-slip assembled steel structure locking and positioning device, including a main load-bearing column 1, with an extension column 3 spliced ​​on the top of the main load-bearing column 1; a connecting steel beam 2 is provided on the outer side of the main load-bearing column 1 for the assembly connection between the main load-bearing column 1 and the connecting steel beam 2; and an adjustment mechanism 4 is provided on the outer surface of the main load-bearing column 1.

[0024] The adjusting mechanism 4 includes a concave groove 42 formed on the outer surface of the main load-bearing column 1. A limit post 45 is fixed longitudinally inside the concave groove 42. A slider 41 is provided inside the concave groove 42. The slider 41 is sleeved on the outside of the limit post 45 and slides along the axial direction of the limit post 45. A first spring 46 is coaxially sleeved on the outside of the limit post 45. The top end of the first spring 46 abuts against the inner top of the concave groove 42, and the bottom end is fixedly connected to the top of the slider 41. A clamping plate 43 is fixedly connected to the outer side of the slider 41. A reinforcing plate 44 is superimposed and fixed on the top of the clamping plate 43. The clamping plate 43 and the reinforcing plate 44 have mounting holes. A second bolt 7 passes through the reinforcing plate 44 and the clamping plate 43. The bottom end of the second bolt 7 is threaded into the threaded hole inside the connecting steel beam 2.

[0025] Specifically, during the steel beam assembly operation, an external force pushes the clamping plate 43 upward, causing the slider 41 to slide upward along the inside of the concave groove 42 and the limiting post 45 to make room for assembly. The first spring 46 is compressed and stores energy. After the connecting steel beam 2 is placed in the set position, the external force is removed, and the first spring 46 releases axial elastic force to drive the slider 41 and the clamping plate 43 to move downward, so that the bottom surface of the clamping plate 43 is in contact with the top surface of the connecting steel beam 2.

[0026] The first spring 46 continuously outputs downward clamping force to eliminate the assembly gap between the clamping plate 43 and the connecting steel beam 2. The reinforcing plate 44 increases the local thickness and structural rigidity of the clamping plate 43 to prevent the clamping plate 43 from bending and deforming under pressure. The second bolt 7 is tightened to make the clamping plate 43 and the connecting steel beam 2 form a rigid fastening, completing the initial node connection.

[0027] Please see the appendix Figure 4 and attached Figure 5 In a preferred embodiment of the present invention, the top of the adjusting mechanism 4 is equipped with a positioning mechanism 5. The positioning mechanism 5 includes a knob 51. A vertically downward extending connecting post 53 is fixed at the center of the bottom end of the knob 51. The connecting post 53 passes through the clamping plate 43. The bottom end of the connecting post 53 is fixedly connected to the top of the positioning plate 54. A second spring 52 is sleeved on the outside of the connecting post 53. The top end of the second spring 52 abuts against the bottom surface of the knob 51, and the bottom end abuts against the top surface of the clamping plate 43. A through hole 55 is opened on the surface of the positioning plate 54. The top and bottom of the connecting steel beam 2 are provided with slots 57. A positioning post 56 is fixedly connected to the inner surface of the connecting steel beam 2. The positioning post 56 is located on one side of the slot 57.

[0028] Specifically, after the adjustment mechanism 4 completes the clamping of the connecting steel beam 2, a vertical downward pressure is applied to the knob 51. The knob 51 moves down to compress the second spring 52. At the same time, the positioning plate 54 is pushed down through the connecting column 53. The bottom end of the positioning plate 54 slides into the groove 57 on the surface of the connecting steel beam 2. Due to the mechanical obstruction of the side wall of the groove 57, the lateral movement of the positioning plate 54 is restricted, thus forming a lateral limit for the connecting steel beam 2.

[0029] While maintaining the downward pressure, rotate knob 51 to rotate connecting column 53 and positioning plate 54 along the vertical axis, so that the central axis of through hole 55 on positioning plate 54 coincides with the central axis of positioning column 56. Release the downward pressure on knob 51, and second spring 52 elastically recovers and pushes knob 51 upward. Knob 51 drives positioning plate 54 to move upward. Positioning plate 54 is sleeved on the outside of positioning column 56 through through hole 55. Second spring 52 remains in a partially compressed state, continuously pressing down clamping plate 43 and pulling positioning column 56 upward. The sleeved fit between through hole 55 and positioning column 56 forms longitudinal mechanical interference, restricting the displacement freedom of connecting steel beam 2 when subjected to external vibration load, and preventing slippage.

[0030] Please see the appendix Figure 6 In a preferred embodiment of the present invention, a protective mechanism 6 is provided on the outside of the splicing part of the main load-bearing column 1 and the extension column 3. The protective mechanism 6 includes a protective plate 61 with an arc-shaped cross-section. Multiple rubber strips 62 are fixed at equal intervals on the inner arc surface of the protective plate 61. A first bolt 63 passes horizontally through the protective plate 61 and its end is screwed into a threaded hole machined on the outer surface of the extension column 3.

[0031] Specifically, after the main load-bearing column 1 and the extension column 3 are spliced ​​at the end face through flanges and bolts, the protective plate 61 is attached to the outside of the flange joint, the first bolt 63 is rotated and tightened, and the protective plate 61 is pulled inward and fixed. The protective plate 61 covers the flange gap, forming a physical barrier to block external rainwater or corrosive gases, reducing the probability of oxidation and corrosion of the internal splicing bolts.

[0032] During the process of the protective plate 61 tightening inward, the rubber strip 62 contacts the outer surface of the extension column 3, the main load-bearing column 1, and the flange side. The rubber strip 62 undergoes volume deformation under pressure, filling the micro-unevenness of the metal surface. The rubber strip 62 increases the surface friction resistance of the joint area. When the structure is subjected to lateral shear load, the friction force restricts the upper and lower columns from lateral misalignment along the end face. The rubber strip 62 under pressure has elastic deformation capability and can absorb some of the external impact energy.

[0033] Working principle: At the start of the assembly operation, the main load-bearing column 1 and the extension column 3 are connected at the end face by flanges. The external splicing joint is reinforced by the protective mechanism 6. The operator attaches the protective plate 61 with rubber strips 62 on the outside of the flange gap and tightens the first bolt 63. As the first bolt 63 is screwed inward, the protective plate 61 moves closer to the column surface. The protective plate 61 covers the flange gap, forming a physical shielding layer to block external rainwater and corrosive gases. During the process of the protective plate 61 moving closer to the column surface, the inner rubber strips 62 contact the metal surface and are compressed, resulting in volume deformation. The rubber strips 62 fill the tiny gaps in the contact surface. The surface friction generated by the deformation increases the resistance to lateral shear in the joint area, limiting the end face slippage and misalignment of the upper and lower columns when subjected to lateral loads.

[0034] When assembling the connecting steel beam 2, the connecting steel beam 2 is moved to the assembly position set outside the main load-bearing column 1. External force pushes the clamping plate 43 upward, and the slider 41 slides upward along the inside of the concave groove 42 and the limiting post 45, compressing the first spring 46 to store energy. After the connecting steel beam 2 is in place, the external force is removed, the first spring 46 releases the axial elastic force, and drives the slider 41 and the clamping plate 43 to move downward, so that the bottom surface of the clamping plate 43 presses against the top surface of the connecting steel beam 2. The first spring 46 outputs continuous downward pressure to eliminate the assembly gap. The reinforcing plate 44 maintains the overall structural rigidity of the clamping plate 43 and prevents it from bending under pressure. Then, the second bolt 7 is passed through the reinforcing plate 44 and the clamping plate 43 and screwed into the inside of the connecting steel beam 2 to complete the rigid fixation of the node area.

[0035] After the adjusting mechanism 4 completes the clamping and fixing, the positioning mechanism 5 performs anti-disengagement locking in the node area, applying vertical downward pressure to the knob 51. The knob 51 moves down and compresses the second spring 52. Simultaneously, the connecting column 53 pushes the positioning plate 54 downward. The positioning plate 54 slides into the slot 57 on the surface of the connecting steel beam 2. The side wall of the slot 57 blocks the lateral displacement of the positioning plate 54, completing the lateral limit of the structure. Maintaining the downward pressure state, the knob 51 is rotated to adjust the angle of the positioning plate 54, so that the axis of the through hole 55 in the positioning plate 54 is aligned with the axis of the through hole 55. The axes of the positioning posts 56 inside the slot 57 are on the same vertical line. When the external force applied to the knob 51 is removed, the second spring 52 releases its elastic restoring force and pushes the knob 51 upward, causing the positioning plate 54 to move upward. The through hole 55 slides upward and is sleeved on the outside of the positioning post 56. The second spring 52 remains in a partially compressed state to continuously output axial pressure. The mechanical sleeve of the through hole 55 and the positioning post 56 forms a longitudinal structural interference, which restricts the displacement freedom of the connecting steel beam 2 in multiple directions and maintains the stability of the steel structure assembly connection.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended description and its equivalents.

Claims

1. A locking and positioning device for an anti-slip prefabricated steel structure, comprising a main load-bearing column (1), wherein an extension column (3) is provided on the top of the main load-bearing column (1); and a connecting steel beam (2) is provided on the outer surface of the main load-bearing column (1). Its features are: An adjustment mechanism (4) is provided on the outer surface of the main load-bearing column (1). The adjustment mechanism (4) includes a concave groove (42) and a clamping plate (43). The outer surface of the main load-bearing column (1) is provided with a concave groove (42). The side surface of the clamping plate (43) is slidably connected to the inside of the concave groove (42). The clamping plate (43) is located on the top of the connecting steel beam (2). The top of the adjustment mechanism (4) is provided with a positioning mechanism (5), which includes a positioning plate (54); the bottom end of the positioning plate (54) is located inside the connecting steel beam (2); the outer surface of the main load-bearing column (1) is provided with a protective mechanism (6); the protective mechanism (6) is located on the outer surface of the extension column (3); the top of the clamping plate (43) is provided with a second bolt (7); the bottom end of the second bolt (7) is threadedly connected to the inside of the connecting steel beam (2).

2. The anti-slip prefabricated steel structure locking and positioning device according to claim 1, characterized in that, The adjustment mechanism (4) includes a slider (41); the slider (41) is slidably connected inside the concave groove (42); the slider (41) is fixedly connected to the surface of the clamping plate (43).

3. The anti-slip prefabricated steel structure locking and positioning device according to claim 2, characterized in that, The concave groove (42) is fixedly connected to a limiting post (45); the slider (41) is slidably connected to the outer surface of the limiting post (45); a first spring (46) is sleeved on the outer surface of the limiting post (45); the bottom end of the first spring (46) is fixedly connected to the top of the slider (41).

4. The anti-slip prefabricated steel structure locking and positioning device according to claim 2, characterized in that, A reinforcing plate (44) is provided on the top of the clamping plate (43); the outer surface of the second bolt (7) is provided inside the clamping plate (43).

5. The anti-slip prefabricated steel structure locking and positioning device according to claim 1, characterized in that, The positioning mechanism (5) includes a knob (51) and a connecting post (53); the bottom surface of the knob (51) is fixedly connected to the connecting post (53); a second spring (52) is sleeved on the outer surface of the connecting post (53); the bottom end of the connecting post (53) is fixedly connected to the top of the positioning plate (54).

6. The anti-slip prefabricated steel structure locking and positioning device according to claim 5, characterized in that, The top end of the second spring (52) is located on the bottom surface of the knob (51); the bottom end of the second spring (52) is located on the top of the clamping plate (43); and a through hole (55) is provided inside the positioning plate (54).

7. The anti-slip prefabricated steel structure locking and positioning device according to claim 6, characterized in that, The top and bottom of the connecting steel beam (2) are provided with slots (57); the side surface of the positioning plate (54) is slidably connected to the inner surface of the slots (57).

8. The anti-slip prefabricated steel structure locking and positioning device according to claim 7, characterized in that, The inner surface of the connecting steel beam (2) is fixedly connected with a positioning column (56); the positioning column (56) is located on one side of the slot (57).

9. The anti-slip prefabricated steel structure locking and positioning device according to claim 1, characterized in that, The protective mechanism (6) includes a protective plate (61) and rubber strips (62); multiple rubber strips (62) are fixedly connected to the inner surface of the protective plate (61).

10. The anti-slip prefabricated steel structure locking and positioning device according to claim 9, characterized in that, The outer surface of the protective plate (61) is provided with a first bolt (63); the outer surface of the first bolt (63) is provided inside the protective plate (61); one end of the first bolt (63) is threaded to the outer surface of the extension column (3).

Images