High-strength bending-fracture-resistant cold-drawn deformed steel

Abstract

The invention relates to the technical field of cold-drawn deformed steel, in particular to high-strength bending-fracture-resistant cold-drawn deformed steel which comprises two cold-drawn deformed steel bodies, bending-resistant compensation plates are mounted on the two sides of each cold-drawn deformed steel body, connecting blocks are fixed to the two ends of each bending-resistant compensation plate, and the number of the cold-drawn deformed steel bodies is two. When the two cold-drawn deformed steel bodies are spliced end to end, bolts penetrate through the two sets of connecting blocks and then are locked, two inserting grooves are formed in the surfaces of the connecting blocks, inserting blocks are connected to the surfaces of the inserting grooves in an inserted mode, the inserting blocks penetrate through the connecting blocks and the anti-bending compensation plates and then are connected to the surfaces of the cold-drawn deformed steel bodies in an inserted mode, and plug blocks are connected into the inserting grooves in an inserted mode and prevent the inserting blocks from retreating. The high-strength bending-fracture-resistant cold-drawn deformed steel provided by the invention has the beneficial effects that the bending-resistant compensation plates which are of the [-shaped plate-shaped structure are mounted on the two sides of the cold-drawn deformed steel body, and the multiple bending-resistant grooves are formed in the surfaces of the bending-resistant compensation plates, so that the bending resistance of the cold-drawn deformed steel is effectively enhanced.

Description

Technical Field

[0001] The present invention relates to the field of cold-drawn special-shaped steel, and specifically to a cold-drawn special-shaped steel with high strength and resistance to bending and fracture. Background Art

[0002] In the fields of construction engineering, mechanical manufacturing, etc., cold-drawn special-shaped steel, as an important structural material, is widely used in various load-bearing and supporting structures. However, traditional cold-drawn special-shaped steel has certain limitations in terms of resistance to bending and fracture. Especially when承受较大弯矩和剪力时,容易发生弯曲和断裂,从而影响结构的安全性和稳定性。

[0003] In order to improve the resistance to bending and fracture of cold-drawn special-shaped steel, a large number of studies and improvements have been carried out. A common method is to increase the bending resistance by increasing the thickness of the material or changing the cross-sectional shape of the material. However, these methods often lead to an increase in material cost and processing difficulty. Another method is to add reinforcing ribs or folding-resistant plates on the surface of the cold-drawn special-shaped steel to improve its overall bending resistance. But these additional structures may increase the complexity and weight of the structure, which is not conducive to lightweight design.

[0004] Therefore, how to provide a technical solution that can not only improve the resistance to bending and fracture of cold-drawn special-shaped steel but also maintain a simple structure and reasonable cost has become an urgent problem to be solved. Summary of the Invention

[0005] The purpose of the present invention is to provide a cold-drawn special-shaped steel with high strength and resistance to bending and fracture to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A cold-drawn special-shaped steel with high strength and resistance to bending and fracture, including the cold-drawn special-shaped steel body. Anti-folding compensation plates are installed on both sides of the cold-drawn special-shaped steel body. Connecting blocks are fixed at both ends of the anti-folding compensation plates. There are two cold-drawn special-shaped steel bodies. When the two cold-drawn special-shaped steel bodies are assembled end to end, bolts pass through two groups of connecting blocks and are locked. Two slots are opened on the surface of the connecting block. An inserting block is inserted into the surface of the slot. The inserting block passes through the connecting block and the anti-folding compensation plate and is inserted into the surface of the cold-drawn special-shaped steel body. A plug block is inserted into the inside of the slot, and the plug block blocks the backward movement of the inserting block.

[0007] Preferably, the cold-drawn special-shaped steel body has an "I"-shaped plate structure, the anti-folding compensation plate has a "C"-shaped plate structure. The height of the anti-folding compensation plate is equal to the distance between the top plate of the cold-drawn special-shaped steel body and the bottom surface of the cold-drawn special-shaped steel body. A plurality of anti-folding grooves are opened on the surface of the anti-folding compensation plate. The long side length of the anti-folding groove is equal to the long side length of the anti-folding compensation plate. The plate length of the anti-folding compensation plate is equal to the plate length of the cold-drawn special-shaped steel body.

[0008] Preferably, the connecting block is in the shape of a square, a reserved groove is provided on the surface of the connecting block, the reserved groove is located between two slots, a bolt hole is provided on the surface of the slot, and a screw rod of the bolt passes through the bolt hole.

[0009] Preferably, the depth of the slot is smaller than the width of the connecting block, a through hole 1 is provided on the surface of the slot, and a through hole 2 is provided on the top plate and the bottom plate of the anti-flexural compensation plate, and the through hole 1 and the through hole 2 are opposite to each other. One end of the plug block passes through the through hole 1 and the through hole 2 and is inserted into the positioning groove, and the positioning groove is provided on the surface of the cold-drawn special-shaped steel body.

[0010] Preferably, the other end of the plug block is provided with an inclined surface, the inclined surface faces the notch of the slot, a through opening is opened on the surface of the plug block, a baffle is inserted into the interior of the through opening, the two ends of the baffle are respectively fixed on two parallel side walls of the through hole one, a rubber traction block is fixed on the surface of the baffle, and one end of the rubber traction block is fixed to the surface of the through opening.

[0011] Preferably, a circular opening is opened on the surface of the rubber traction block, and after the plugging block squeezes and pushes the inserting block, the inserting block tensions the rubber traction block to generate elastic deformation.

[0012] Preferably, a rubber pad is fixed to one end of the plug extending into the slot, and the rubber pad is clamped between the plug and the slot to generate elastic deformation.

[0013] Preferably, a card slot is provided at the other end of the plug block, the card slot is a square slot, the width of the card slot is equal to the width of the plug block, a baffle is inserted inside the card slot, sliders are fixed at both ends of the baffle, and the sliders are slidably connected to the surface of the connecting block.

[0014] Preferably, the slider is a "convex" shaped block, the slider is slidably connected in the slide groove, the slide groove is a "convex" shaped groove, the slide groove is opened on the surface of the connecting block, a rubber strip is bonded to the surface of the slider, and the rubber strip is clamped between the slider and the slide groove.

[0015] Preferably, a pick-out groove is provided on a side of the baffle bar away from the plugging block, and the pick-out groove is an oblong groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The cold-drawn special-shaped steel with high strength and resistance to bending and fracture proposed by the present invention effectively enhances the bending resistance of the cold-drawn special-shaped steel by installing anti-bending compensation plates in a "C"-shaped plate structure on both sides of the cold-drawn special-shaped steel body and opening a plurality of anti-bending grooves on the surface of the anti-bending compensation plates. This structural design can disperse bending moments and shear forces, reduce stress concentration, and thus improve the overall bending and fracture resistance performance. Through the cooperation of components such as connecting blocks, bolts, inserting blocks, plug blocks, and retaining bars, a firm connection between the anti-bending compensation plate and the cold-drawn special-shaped steel body is achieved. This connection method is not only convenient for installation but also ensures that it will not loosen or fall off during use, improving the safety and stability of the structure. At the same time, due to the good detachable property between components, it is also convenient for later maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present invention;

[0019] Figure 2 is Figure 1 an enlarged schematic diagram of the structure at A in

[0020] Figure 3 is a schematic structural diagram of the connection between the cold-drawn special-shaped steel body and the anti-bending compensation plate of the present invention;

[0021] Figure 4 is a side view of the structure of the present invention;

[0022] Figure 5 is Figure 4 a sectional view of the structure at A-A in

[0023] Figure 6 is Figure 5 an enlarged schematic diagram of the structure at B in

[0024] Figure 7 is Figure 6 an enlarged schematic diagram of the structure at C in

[0025] Figure 8 is a schematic structural diagram of the connection between the anti-bending compensation plate and the connecting block of the present invention;

[0026] Fig. 9 is a schematic structural diagram of the connecting block of the present invention;

[0027] Fig.10 is a schematic structural diagram of the connection between the retaining bar and the slider of the present invention;

[0028] Fig.11 is a schematic structural diagram of the inserting block of the present invention;

[0029] Fig.12 is a schematic structural diagram of the plug block of the present invention;

[0030] Fig.13This is a schematic structural diagram of the connecting block of the present invention.

[0031] In the figure: the cold-drawn special-shaped steel body 1, the anti-flexure compensation plate 2, the anti-flexure groove 3, the connecting block 4,

[0032] the reserved groove 5, the bolt hole 6, the bolt 7, the slot 8, the first perforation 9, the second perforation 10, the insertion block 11, the positioning groove 12, the inclined surface 13, the plug block 14, the rubber cushion block 15, the card slot 16, the retaining strip 17, the slider 18, the sliding groove 19, the extraction groove 20, the through port 21, the retaining piece 22, the rubber traction block 23. Specific embodiments

[0033] In order to clearly and completely describe the purpose, technical solution of the present invention and make the advantages more clearly understood, the following further details the embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0034] Please refer to Figure 1-Figure 13 , the present invention provides a technical solution: a high-strength cold-drawn special-shaped steel resistant to bending and fracture, including the cold-drawn special-shaped steel body 1. Anti-flexure compensation plates 2 are installed on both sides of the cold-drawn special-shaped steel body 1. The cold-drawn special-shaped steel body 1 is in an "I"-shaped plate structure, and the anti-flexure compensation plate 2 is in a "C"-shaped plate structure. The height of the anti-flexure compensation plate 2 is equal to the distance between the top plate of the cold-drawn special-shaped steel body 1 and the bottom surface of the cold-drawn special-shaped steel body 1. A plurality of anti-flexure grooves 3 are provided on the surface of the anti-flexure compensation plate 2. The long side length of the anti-flexure groove 3 is equal to the long side length of the anti-flexure compensation plate 2. The plate length of the anti-flexure compensation plate 2 is equal to the plate length of the cold-drawn special-shaped steel body 1. Connecting blocks 4 are fixed at both ends of the anti-flexure compensation plate 2. There are two cold-drawn special-shaped steel bodies 1. When the two cold-drawn special-shaped steel bodies 1 are assembled end to end, they are locked by bolts 7 passing through two groups of connecting blocks 4. Two slots 8 are provided on the surface of the connecting block 4. The connecting block 4 is in a square shape. A reserved groove 5 is provided on the surface of the connecting block 4. The reserved groove 5 is located between the two slots 8. Bolt holes 6 are provided on the surface of the slot 8, and the screw of the bolt 7 passes through the bolt hole 6.

[0035] When in use, the two groups of anti-flexural compensation plates 2 are respectively installed on both sides of the cold-drawn special-shaped steel body 1 to improve the anti-flexural performance of the cold-drawn special-shaped steel body 1, and a plurality of anti-flexural grooves 3 are opened on the surface of the anti-flexural compensation plate 2 to further improve the anti-flexural performance of the anti-flexural compensation plate 2; and the connecting block 4 at the end of the cold-drawn special-shaped steel body 1 cooperates with the bolt 7 to realize the connection and fixation of the two cold-drawn special-shaped steel bodies 1, that is, after the two cold-drawn special-shaped steel bodies 1 are aligned head to tail, the screw rod of the bolt 7 is passed through the bolt hole 6 on the surface of the two groups of connecting blocks 4, and the nut is screwed on the screw rod and locked.

[0036] The surface of the slot 8 is plugged with a plug block 11, which penetrates the connecting block 4 and the anti-bending compensation plate 2 and is then plugged into the surface of the cold-drawn special-shaped steel body 1. A plug block 14 is plugged into the interior of the slot 8, and the plug block 14 blocks the plug block 11 from retreating. The depth of the slot 8 is less than the width of the connecting block 4. A perforation 1 9 is provided on the surface of the slot 8, and a perforation 2 10 is provided on the top plate of the anti-bending compensation plate 2 and the bottom plate of the anti-bending compensation plate 2. The perforation 1 9 and the perforation 2 10 are opposite to each other. One end of the plug block 11 passes through the perforation 1 9 and the perforation 2 10 and is then plugged into the positioning groove 12. The positioning groove 12 is provided at The surface of the cold-drawn special-shaped steel body 1; the other end of the plug 11 is provided with an inclined surface 13, the inclined surface 13 faces the notch of the slot 8, the surface of the plug 11 is provided with a through opening 21, the interior of the through opening 21 is plugged with a baffle 22, the two ends of the baffle 22 are respectively fixed on the two parallel side walls of the through hole 9, a rubber traction block 23 is fixed on the surface of the baffle 22, and one end of the rubber traction block 23 is fixed on the surface of the through opening 21; the surface of the rubber traction block 23 is provided with a round opening, after the plug 14 squeezes and pushes the plug 11, the plug 11 tensions the rubber traction block 23 to produce elastic deformation.

[0037] When in use, in order to fix the connecting block 4 and the anti-bending compensation plate 2 in the cold-drawn special-shaped steel body 1, the plug block 14 is inserted into the slot 8. During this process, the plug block 14 squeezes the plug block 11 along the inclined surface 13, and the plug block 11 moves along the perforation 1 9 and the perforation 2 10, and the plug block 11 tensions the rubber traction block 23 to produce elastic deformation until one end of the plug block 11 is inserted into the positioning groove 12, and the rubber pad 15 at one end of the plug block 14 is clamped between the plug block 14 and the slot 8. The plug block 14 blocks the plug block 11 to prevent the plug block 11 from falling off from the perforation 1 9, so that the anti-bending compensation plate 2 and the connecting block 4 are fixed in the cold-drawn special-shaped steel body 1.

[0038] A rubber pad 15 is fixed to one end of the plug 14 extending into the slot 8, and the rubber pad 15 is clamped between the plug 14 and the slot 8 to produce elastic deformation; a card slot 16 is provided at the other end of the plug 14, and the card slot 16 is a square slot, the width of the card slot 16 is equal to the width of the plug 14, and a baffle 17 is inserted inside the card slot 16, and sliders 18 are fixed at both ends of the baffle 17, and the slider 18 is slidably connected to the surface of the connecting block 4; the slider 18 is a "convex"-shaped block, and the slider 18 is slidably connected in the slide groove 19, and the slide groove 19 is a "convex"-shaped groove, and the slide groove 19 is provided on the surface of the connecting block 4, and a rubber strip is bonded to the surface of the slider 18, and the rubber strip is clamped between the slider 18 and the slide groove 19; a pick-up groove 20 is provided on the side of the baffle 17 away from the plug 14, and the pick-up groove 20 is an oblong groove.

[0039] When in use, in order to prevent the plug 14 from slipping out of the slot 8, the plug 14 is pushed to squeeze the rubber pad 15, and the blocking bar 17 is moved to pull the slider 18 to slide along the slide groove 19 until the blocking bar 17 slides to the front of the slot 16. At this time, the plug 14 is released, and the rubber pad 15 rebounds to push the plug 14 back. At this time, the slot 16 is buckled on the blocking bar 17. In this way, the blocking bar 17 blocks and limits the plug 14 while the plug 14 also limits the blocking bar 17 through the slot 16; thereby ensuring that the plug 14 limits the insertion block 11 stably, and ensuring the firmness of the anti-bending compensation plate 2 installed in the cold-drawn special-shaped steel body 1.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength, bending- and fracture-resistant cold-drawn special-shaped steel, comprising a cold-drawn special-shaped steel body (1), characterized in that: On both sides of the cold-drawn special-shaped steel body (1), folding-resistant compensation plates (2) are installed. At both ends of the folding-resistant compensation plates (2), connecting blocks (4) are fixed. When two cold-drawn special-shaped steel bodies (1) are assembled end to end, after bolts (7) pass through two groups of connecting blocks (4), they are locked. On the surface of the connecting blocks (4), two slots (8) are opened. On the surface of the slots (8), insertion blocks (11) are inserted. After passing through the connecting blocks (4) and the folding-resistant compensation plates (2), the insertion blocks (11) are inserted into the surface of the cold-drawn special-shaped steel body (1). A plug block (14) is inserted into the slot (8), and the plug block (14) blocks the backward movement of the insertion block (11).

2. The high-strength cold-drawn special-shaped steel with bending and fracture resistance according to claim 1, characterized in that: The cold-drawn special-shaped steel body (1) has an "I"-shaped plate structure, and the folding-resistant compensation plate (2) has a "C"-shaped plate structure. The height of the folding-resistant compensation plate (2) is equal to the distance between the top plate of the cold-drawn special-shaped steel body (1) and the bottom surface of the cold-drawn special-shaped steel body (1). On the surface of the folding-resistant compensation plate (2), a plurality of folding-resistant grooves (3) are opened. The long side length of the folding-resistant grooves (3) is equal to the long side length of the folding-resistant compensation plate (2). The plate length of the folding-resistant compensation plate (2) is equal to the plate length of the cold-drawn special-shaped steel body (1).

3. The high-strength cold-drawn special-shaped steel with bending and fracture resistance according to claim 1, characterized in that: The connecting block (4) is in the shape of a cube. On the surface of the connecting block (4), a reserved groove (5) is opened. The reserved groove (5) is located between the two slots (8). On the surface of the slot (8), a bolt hole (6) is opened, and the screw rod of the bolt (7) passes through the bolt hole (6).

4. The high-strength cold-drawn special-shaped steel with bending and fracture resistance according to claim 1, characterized in that: The depth of the slot (8) is less than the width of the connecting block (4). On the surface of the slot (8), a first through hole (9) is opened. On both the top plate and the bottom plate of the folding-resistant compensation plate (2), a second through hole (10) is opened. The first through hole (9) and the second through hole (10) are opposite. One end of the insertion block (11) passes through the first through hole (9) and the second through hole (10) and is inserted into a positioning groove (12) opened on the surface of the cold-drawn special-shaped steel body (1).

5. The high-strength cold-drawn special-shaped steel with bending and fracture resistance according to claim 4, characterized in that: The other end of the insertion block (11) is provided with an inclined surface (13) facing the notch of the slot (8). On the surface of the insertion block (11), a through opening (21) is opened. Inside the through opening (21), a retaining piece (22) is inserted. Both ends of the retaining piece (22) are respectively fixed on two parallel side walls of the first through hole (9). On the surface of the retaining piece (22), a rubber traction block (23) is fixed, and one end of the rubber traction block (23) is fixed on the surface of the through opening (21).

6. The high-strength cold-drawn special-shaped steel with resistance to bending and fracture according to claim 5, characterized in that: On the surface of the rubber traction block (23), a round opening is opened. After the plug block (14) pushes the insertion block (11), the insertion block (11) stretches the rubber traction block (23) to generate elastic deformation.

7. The high-strength cold-drawn special-shaped steel with resistance to bending and fracture according to claim (1), characterized in that: One end of the plug block (14) extending into the slot (8) is fixed with a rubber cushion block (15), and the rubber cushion block (15) is clamped between the plug block (14) and the slot (8) to generate elastic deformation.

8. The high-strength cold-drawn special-shaped steel with resistance to bending and fracture according to claim 1, characterized in that: The other end of the plug block (14) is provided with a slot (16), which is a square slot. The width of the slot (16) is equal to the width of the plug block (14). A stopper bar (17) is inserted into the slot (16). Both ends of the stopper bar (17) are fixed with sliders (18), which are slidably connected to the surface of the connecting block (4).

9. The high-strength cold-drawn special-shaped steel with bending and fracture resistance according to claim 8, characterized in that: The slider (18) is a convex-shaped block. The slider (18) is slidably connected in the slide groove (19). The slide groove (19) is a convex-shaped groove. The slide groove (19) is arranged on the surface of the connecting block (4). A rubber strip is bonded to the surface of the slider (18). The rubber strip is clamped between the slider (18) and the slide groove (19).

10. The high-strength bending and fracture-resistant cold-drawn special-shaped steel according to claim 8, characterized in that: A pick-out groove (20) is provided on one side of the blocking bar (17) away from the plug (14), and the pick-out groove (20) is an oblong groove.

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