Fabricated steel frame

Abstract

The application discloses an assembled steel frame and relates to the technical field of steel structure frames, which comprises square steel columns, and a fixing block is fixedly welded to the side of each of the square steel columns close to another two square steel columns. In use, first, the square steel columns are placed at designated positions, then the U-shaped connecting pieces are fixed on the fixing blocks through the first bolts and the second bolts, at this time, the positions of the two placing blocks correspond to each other, then the H-shaped steel beams are placed in the placing grooves, thereby facilitating the placing of the H-shaped steel beams, so that the situation that the H-shaped steel beams are difficult to be fixed on the two square steel columns is avoided, meanwhile, the U-shaped connecting pieces are adopted for connection, the situation that the node stiffness is weak and the bearing capacity is low is effectively improved, when the H-shaped steel beams are placed, the fixing plates are installed on the placing blocks, the gap of the placing groove is blocked, so that the U-shaped connecting pieces and the H-shaped steel beams are convenient and fast to install and dismount, and the application is convenient to use.

Description

Technical Field

[0001] This invention relates to the field of steel structure frame technology, and in particular to a prefabricated steel frame. Background Technology

[0002] With the continuous innovation and development of steel structure forms, the application of prefabricated steel frame structures has been widely promoted. Steel frames mainly consist of columns, beams, and beam-column joints, with the beam-column joints being of paramount importance.

[0003] In the prior art, when assembling a steel frame structure, the steel columns are usually fixed in a certain position first, and then short beams are welded to the steel columns. Then, they are connected to the rear steel beams through connecting plates. However, this connection method not only reduces the net cross-sectional area of ​​the beams, but also makes it inconvenient to assemble the steel frame. Furthermore, the welding method makes it inconvenient to reuse the cross beams, making it unusable. In view of the shortcomings of the prior art, this invention discloses a prefabricated steel frame to solve the above problems. Summary of the Invention

[0004] The purpose of this application is to provide a prefabricated steel frame to solve the problems mentioned in the background art, such as that welding not only reduces the net cross-sectional area of ​​the beams, but also makes it inconvenient to assemble the steel frame, and makes it difficult to reuse the beams.

[0005] To achieve the above objectives, this application provides the following technical solution: a prefabricated steel frame, comprising square steel columns, wherein fixing blocks are fixedly welded to the sides of multiple square steel columns near two other square steel columns, U-shaped connectors are detachably installed on the multiple fixing blocks, and pre-fixing mechanisms are provided on the multiple fixing blocks, which are installed in conjunction with the U-shaped connectors. Placement blocks are fixedly welded to the sides of the multiple U-shaped connectors, and placement slots are provided on the sides of the multiple placement blocks. An H-shaped steel beam is provided in every two matching placement slots, and a detachable sealing mechanism is provided on the placement block, which is installed in conjunction with the placement slot.

[0006] Preferably, the sealing mechanism includes a fixed plate disposed in front of the placement block, a horizontal block installed on the side of the fixed plate, two movable cavities formed on the fixed plate, each of the two movable cavities containing a movable plate, two clearance holes formed on the side of the fixed plate, the two movable plates passing through the two clearance holes respectively, a fixed post installed on the side of each of the two movable plates, a fixed groove adapted to the fixed post formed on the opposite inner wall of the placement groove, an elastic pulling unit provided on the side of each of the two movable plates, and a squeezing unit provided on the fixed plate to bring the two movable plates closer together.

[0007] Preferably, the elastic pulling unit includes a tension spring installed on the side of the moving plate, and the other end of the tension spring is installed on the inner wall of the side of the moving cavity.

[0008] Preferably, guide rods are installed on the opposite inner walls of the movable cavity, and guide holes are opened on the top of the two movable plates, with the two guide rods passing through the two guide holes respectively.

[0009] Preferably, a diagonal rod is installed on the side of the horizontal block, and the other end of the diagonal rod is installed on the side of another horizontal block that is set at an angle.

[0010] Preferably, the extrusion unit includes an extrusion chamber formed on the fixed plate and communicating with the two movable cavities. The sides of the two movable plates extend into the extrusion chamber and are respectively equipped with movable plates. Trapezoidal blocks are installed on the sides of the two movable plates. A movable block is provided in the extrusion chamber. An extrusion plate is installed on the side of the movable block. An elastic reset element is provided on the side of the movable block. A threaded lifting hole is formed on the side of the fixed plate. A threaded lifting rod is threadedly installed in the threaded lifting hole. A through hole is formed on the side of the horizontal block. One end of the threaded lifting rod passes through the through hole and is equipped with a handle. A lifting plate is installed on the other end of the threaded lifting rod.

[0011] Preferably, the elastic reset element includes two reset springs mounted on the side of the moving block, and the other ends of the two reset springs are mounted on the inner wall of the side of the extrusion chamber.

[0012] Preferably, two limiting rods are installed on the opposite inner walls of the extrusion chamber, and two limiting holes are opened on the side of the moving block, with the two limiting rods passing through the two limiting holes respectively.

[0013] Preferably, the pre-fixing mechanism includes hooks respectively installed on the mutually distant sides of the fixing block, and two hanging ropes adapted to the hooks are installed on the top of the U-shaped connector.

[0014] Preferably, the U-shaped connector has multiple mounting holes on its mutually distant sides, and a first bolt is movably installed in each of the multiple mounting holes. The fixing block has multiple threaded mounting holes on its mutually distant sides, and the ends of the multiple first bolts are threaded into the multiple threaded mounting holes. The U-shaped connector has multiple fixing holes on its side near the placement block, and a second bolt is movably installed in each of the multiple fixing holes. The fixing block has multiple threaded fixing holes on its side near the placement block, and the ends of the multiple second bolts are threaded into the multiple threaded fixing holes.

[0015] In summary, the technical effects and advantages of this invention are as follows: In this invention, the square steel column is first placed in the designated position, and then the U-shaped connector is fixed to the fixing block using the first and second bolts. At this time, the two placement blocks are positioned correspondingly. Then, the H-shaped steel beam is placed in the placement groove, which facilitates the placement of the H-shaped steel beam and avoids the situation where the H-shaped steel beam is difficult to fix to the two square steel columns. At the same time, the use of U-shaped connectors for connection effectively improves the situation of weak node stiffness and low load-bearing capacity. When it is in place, the fixing plate is installed on the placement block, so that the gap in the placement groove is sealed. This makes the installation and disassembly of the U-shaped connector and the H-shaped steel beam convenient and quick, and easy to use.

[0016] In this invention, the hooks and hanging ropes allow for pre-fixation of the U-shaped connector before it is actually fixed, positioning it in a certain location to facilitate subsequent fixing by the user and preventing the U-shaped connector from being too heavy and affecting the user's operation during fixing.

[0017] In this invention, the horizontal blocks and diagonal braces provide auxiliary support, making the steel frame structure more stable. The handles, movable plates, fixed columns, movable plates, trapezoidal blocks, pressing plates, threaded lifting rods, and lifting plates facilitate quick fixation of the fixed plates, thereby preventing the H-shaped steel beams from falling off. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram from a first perspective in an embodiment of this application; Figure 2 for Figure 2 Enlarged structural diagram at point A in the middle; Figure 3 This is a three-dimensional structural diagram from a second perspective in an embodiment of this application; Figure 4 for Figure 3 A magnified schematic diagram of the central part of the structure; Figure 5 This is a top view of a partially sectional structure according to an embodiment of this application; Figure 6 for Figure 5 A magnified schematic diagram of the central part of the structure; Figure 7 This is a top view of a partially cut section of the placement block and fixing plate 1 according to an embodiment of this application; Figure 8 This is a partially enlarged front view of an embodiment of this application.

[0020] In the diagram: 1. Square steel column; 2. Fixing block; 3. U-shaped connector; 4. Placement block; 5. H-shaped steel beam; 6. Hook; 7. Hanging rope; 8. First bolt; 9. Second bolt; 10. Fixing plate; 11. Handle; 12. Horizontal block; 13. Diagonal bar; 14. Moving plate; 15. Fixing column; 16. Guide rod; 17. Tension spring; 18. Movable plate; 19. Trapezoidal block; 20. Moving block; 21. Extrusion plate; 22. Limiting rod; 23. Return spring; 24. Threaded lifting rod; 25. Lifting plate. Detailed Implementation

[0021] The technical solutions of 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention. Example

[0022] refer to Figure 1-4 The prefabricated steel frame shown includes square steel columns 1. Fixing blocks 2 are fixedly welded to the sides of multiple square steel columns 1 near two other square steel columns 1. U-shaped connectors 3 are detachably installed on each of the fixing blocks 2. Pre-fixing mechanisms are provided on each of the fixing blocks 2, and these pre-fixing mechanisms are installed in conjunction with the U-shaped connectors 3. Placement blocks 4 are fixedly welded to the sides of each of the multiple U-shaped connectors 3. Placement slots are provided on the sides of each of the multiple placement blocks 4. An H-shaped steel beam 5 is commonly installed in every two matching placement slots. A detachable sealing mechanism is provided on each placement block 4, and the sealing mechanism is installed in conjunction with the placement slot.

[0023] With the above structure, during use, first place the square steel column 1 in the designated position, then fix the U-shaped connector 3 to the fixing block 2. At this time, the two placement blocks 4 are positioned correspondingly. Then, place the H-shaped steel beam 5 in the placement groove, which facilitates the placement of the H-shaped steel beam 5 and avoids the situation where the H-shaped steel beam 5 is difficult to fix to the two square steel columns 1. At the same time, the use of U-shaped connector 3 for connection effectively improves the situation of weak node stiffness and low load-bearing capacity. After placement, the sealing mechanism is installed on the placement block 4. At this time, the gap in the placement groove is sealed, preventing the H-shaped steel beam 5 from moving. like Figure 7As shown, the sealing mechanism includes a fixed plate 10 disposed in front of the placement block 4. A horizontal block 12 is installed on the side of the fixed plate 10. Two movable cavities are opened on the fixed plate 10, and movable plates 14 are disposed in each of the two movable cavities. Two clearance holes are opened on the side of the fixed plate 10, and the two movable plates 14 pass through the two clearance holes respectively. Fixed posts 15 are installed on the side of the two movable plates 14. Fixed grooves that are adapted to the fixed posts 15 are opened on the opposite inner walls of the placement groove. Elastic pulling units are provided on the side of the two movable plates 14. A squeezing unit is provided on the fixed plate 10 to bring the two movable plates 14 closer to each other. The advantage of this arrangement is that the placement groove on the placement block 4 is easily sealed by the fixed plate 10, and the fixed plates 14 and fixed posts 15 are easily fixed quickly.

[0024] like Figure 7 As shown, the elastic pulling unit includes a tension spring 17 installed on the side of the movable plate 14, and the other end of the tension spring 17 is installed on the inner wall of the side of the movable cavity. The advantage of this arrangement is that, through the arrangement of the tension spring 17, when the movable plate 14 is not under force, the movable plate 14 is reset under the action of the tension spring 17.

[0025] like Figure 7 As shown, guide rods 16 are installed on the inner walls of the moving cavity, and guide holes are opened on the top of the two moving plates 14. The two guide rods 16 pass through the two guide holes respectively. The advantage of this arrangement is that the moving plates 14 can move in the horizontal direction through the guide rods 16.

[0026] like Figure 4 As shown, a diagonal brace 13 is installed on the side of the horizontal block 12, and the other end of the diagonal brace 13 is installed on the side of another horizontal block 12 that is set at an angle. The advantage of this arrangement is that the horizontal block 12 and the diagonal brace 13 provide a certain auxiliary support, making the steel frame structure more stable.

[0027] like Figure 7As shown, the extrusion unit includes an extrusion chamber formed on the fixed plate 10 and connected to two movable chambers. The sides of the two movable plates 14 extend into the extrusion chamber and are respectively equipped with movable plates 18. Trapezoidal blocks 19 are installed on the sides of the two movable plates 18. A movable block 20 is provided in the extrusion chamber. An extrusion plate 21 is installed on the side of the movable block 20. An elastic reset element is provided on the side of the movable block 20. A threaded lifting hole is opened on the side of the fixed plate 10. A threaded lifting rod 24 is threadedly installed in the threaded lifting hole. A through hole is opened on the side of the horizontal block 12. One end of the threaded lifting rod 24 passes through the through hole and is equipped with a handle 11. The other end of the threaded lifting rod 24 is equipped with a lifting plate 25. The advantage of this arrangement is that, through the arrangement of the handle 11, movable plate 18, trapezoidal block 19, movable block 20, extrusion plate 21, threaded lifting rod 24 and lifting plate 25, it is easy to make the two movable plates 14 move away from each other, so that the two fixed columns 15 enter the fixed groove, and the fixed plate 10 is fixed on the placement block 4. Example

[0028] like Figure 6 As shown, the elastic reset element includes two reset springs 23 installed on the side of the moving block 20. The other end of the two reset springs 23 is installed on the inner wall of the side of the extrusion chamber. The advantage of this arrangement is that, by setting the reset springs 23, when the lifting plate 25 does not extrude the moving block 20, the lifting plate 25 will be reset under the action of the reset springs 23.

[0029] like Figure 6 As shown, two limiting rods 22 are installed on the inner walls of the extrusion chamber, and two limiting holes are opened on the side of the moving block 20. The two limiting rods 22 pass through the two limiting holes respectively. The advantage of this setting is that the moving block 20 can move in the horizontal direction by setting the limiting rods 22.

[0030] like Figure 2 As shown, the pre-fixing mechanism includes hooks 6 respectively installed on the opposite sides of the fixing block 2. The top of the U-shaped connector 3 is equipped with two hanging ropes 7 that are compatible with the hooks 6. The advantage of this setting is that the hooks 6 and hanging ropes 7 make it easy to pre-fix the U-shaped connector 3 in a certain position, which makes it easy for the user to fix the U-shaped connector 3 afterward, making it convenient to use.

[0031] like Figure 2As shown, the U-shaped connector 3 has multiple mounting holes on its mutually distant sides, and a first bolt 8 is movably installed in each of the multiple mounting holes. The fixing block 2 has multiple threaded mounting holes on its mutually distant sides, and the ends of the multiple first bolts 8 are threaded into the multiple threaded mounting holes. The U-shaped connector 3 has multiple fixing holes on its side near the placement block 4, and a second bolt 9 is movably installed in each of the multiple fixing holes. The fixing block 2 has multiple threaded fixing holes on its side near the placement block 4, and the ends of the multiple second bolts 9 are threaded into the multiple threaded fixing holes. The advantage of this arrangement is that the first bolts 8 and the second bolts 9 facilitate the fixing of the U-shaped connector 3, and at the same time, the U-shaped connector 3 and the H-shaped steel beam 5 can be disassembled for easy reuse.

[0032] Working principle of this invention: In use, first place the square steel column 1 in the designated position, then hang the hanging rope 7 on the U-shaped connector 3 onto the hook 6, and then fix the U-shaped connector 3 to the fixing block 2 with the first bolt 8 and the second bolt 9. At this time, the two placement blocks 4 are in corresponding positions. Then, place the H-shaped steel beam 5 in the placement groove, which facilitates the placement of the H-shaped steel beam 5 and avoids the situation where the H-shaped steel beam 5 is difficult to fix to the two square steel columns 1. At the same time, the use of the U-shaped connector 3 for connection effectively improves the situation of weak node stiffness and low load-bearing capacity. When it is in place, press the fixing plate 10 tightly against the placement block 4, and then turn the handle 11. The rotation of the handle 11 drives the threaded lifting rod 24 to rotate, which in turn causes the lifting plate 25 to move. When the lifting plate 25 contacts the moving block 20, the lifting plate 25 continues to move, which will cause the moving block 20 to move under the action of the limiting rod 22. The movement of the moving block 20 will drive the pressing plate 21 to move. The movement of the pressing plate 21 will press the two trapezoidal blocks 1. 9. This causes the two movable plates 18 to move away from each other. The movement of the movable plate 18 will drive the movable plate 14 to move, and the movement of the movable plate 14 will drive the fixed column 15 to move, thereby fixing the fixed plate 10. At this time, the fixed plate 10 seals the gap in the placement slot. At the same time, the horizontal block 12 and the diagonal bar 13 on the fixed plate 10 play an auxiliary support role, making the steel frame structure more stable. When it is necessary to remove the H-shaped steel beam 5, turn the handle 11 in the opposite direction. The reverse rotation of the handle 11 will cause the lifting plate 25 to move away from the movable block 20. At this time, under the action of the return spring 23, the movable block 20 will be reset. The reset of the movable block 20 will cause the pressing plate 21 to stop pressing the trapezoidal block 19. At this time, under the action of the tension spring 17, the movable plate 14 will be reset. The reset of the movable plate 14 will cause the fixed column 15 to be reset, thereby quickly removing the fixed plate 10. Then, the H-shaped steel beam 5 can be removed, so that the steel beam can be reused, and the installation is convenient and quick, making it easy to use.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A prefabricated steel frame, comprising square steel columns (1), characterized in that: Each of the square steel columns (1) has a fixing block (2) fixedly welded to the side of the other two square steel columns (1). Each of the fixing blocks (2) has a U-shaped connector (3) detachably installed on each of the fixing blocks (2). Each of the fixing blocks (2) has a pre-fixing mechanism installed in conjunction with the U-shaped connector (3). Each of the U-shaped connectors (3) has a placement block (4) fixedly welded to the side. Each of the placement blocks (4) has a placement groove on the side. Each pair of matching placement grooves has an H-shaped steel beam (5) installed in the same way. Each placement block (4) has a detachable sealing mechanism installed in conjunction with the placement groove. The sealing mechanism includes a fixed plate (10) disposed in front of the placement block (4), a horizontal block (12) is installed on the side of the fixed plate (10), two movable cavities are opened on the fixed plate (10), and a movable plate (14) is disposed in each of the two movable cavities. Two clearance holes are opened on the side of the fixed plate (10), and the two movable plates (14) pass through the two clearance holes respectively. A fixed column (15) is installed on the side of each of the two movable plates (14). A fixed groove adapted to the fixed column (15) is opened on the opposite inner wall of the placement groove. An elastic pulling unit is provided on the side of each of the two movable plates (14). A squeezing unit is provided on the fixed plate (10) to bring the two movable plates (14) closer to each other. The elastic pulling unit includes a tension spring (17) installed on the side of the moving plate (14), and the other end of the tension spring (17) is installed on the inner wall of the side of the moving cavity; Guide rods (16) are installed on the inner walls of the moving cavity, and guide holes are opened on the top of the two moving plates (14), and the two guide rods (16) pass through the two guide holes respectively.

2. The prefabricated steel frame according to claim 1, characterized in that: A diagonal rod (13) is installed on the side of the horizontal block (12), and the other end of the diagonal rod (13) is installed on the side of another horizontal block (12) that is set at an angle.

3. A prefabricated steel frame according to claim 1, characterized in that: The extrusion unit includes an extrusion chamber opened on the fixed plate (10) and connected to the two movable chambers. The sides of the two movable plates (14) extend into the extrusion chamber and are respectively equipped with movable plates (18). The sides of the two movable plates (18) are each equipped with trapezoidal blocks (19). A movable block (20) is provided in the extrusion chamber. An extrusion plate (21) is installed on the side of the movable block (20). An elastic reset element is provided on the side of the movable block (20). A threaded lifting hole is opened on the side of the fixed plate (10). A threaded lifting rod (24) is threadedly installed in the threaded lifting hole. A through hole is opened on the side of the horizontal block (12). One end of the threaded lifting rod (24) passes through the through hole and is equipped with a handle (11). The other end of the threaded lifting rod (24) is equipped with a lifting plate (25).

4. A prefabricated steel frame according to claim 3, characterized in that: The elastic reset element includes two reset springs (23) installed on the side of the moving block (20), and the other end of the two reset springs (23) is installed on the inner wall of the side of the extrusion chamber.

5. A prefabricated steel frame according to claim 3, characterized in that: Two limiting rods (22) are installed on the inner walls of the extrusion chamber, and two limiting holes are opened on the side of the moving block (20), with the two limiting rods (22) passing through the two limiting holes respectively.

6. A prefabricated steel frame according to claim 1, characterized in that: The pre-fixing mechanism includes hooks (6) respectively installed on the opposite sides of the fixing block (2), and two hanging ropes (7) adapted to the hooks (6) are installed on the top of the U-shaped connector (3).

7. A prefabricated steel frame according to claim 1, characterized in that: The U-shaped connector (3) has multiple mounting holes on its mutually distant sides, and a first bolt (8) is movably installed in each of the multiple mounting holes. The fixing block (2) has multiple mounting thread holes on its mutually distant sides, and the ends of the multiple first bolts (8) are respectively threaded into the multiple mounting thread holes. The U-shaped connector (3) has multiple fixing holes on its side near the placement block (4), and a second bolt (9) is movably installed in each of the multiple fixing holes. The fixing block (2) has multiple fixing thread holes on its side near the placement block (4), and the ends of the multiple second bolts (9) are respectively threaded into the multiple fixing thread holes.

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