Detachable steel structure grid structure

Abstract

The utility model discloses a detachable steel structure net rack structure, which relates to the technical field of steel structure net racks, and comprises a steel net rack main plate, and four notch parts and two convex block parts are respectively and fixedly arranged on two sides of the steel net rack main plate; a cavity is formed in the portion, located on one side of the notch part, of the steel truss main plate, the inner side of the cavity is rotationally connected with a two-way lead screw, four lead screw sliding blocks are installed on the two-way lead screw, connecting rods are installed on the sides, back to the protruding block part, of the lead screw sliding blocks, connecting columns are fixedly connected to the sides, back to the protruding block part, of the lead screw sliding blocks, and the four connecting columns correspond to the notch parts in a one-to-one mode; knobs are mounted at the top ends of the two-way lead screws; the connecting column is cylindrical, first connecting round holes are formed in the upper portion and the lower portion of the notch part, and the connecting column is matched with the first connecting round holes. A second connecting round hole is formed in the protruding block part, and the diameter of the first connecting round hole is the same as that of the second connecting round hole. Adjusting and fixing units are installed on the two sides of the steel net rack main plate correspondingly, and the technical problem that the installation angle between the steel net racks cannot be flexibly adjusted according to the installation requirement is solved.

Description

Demountable steel space frame structure Technical Field

[0001] This utility model relates to the field of steel structure space frame technology, specifically a detachable steel structure space frame structure. Background Technology

[0002] During the installation and construction of steel space frames, they are generally connected and fixed by screws and threads or welding. The steel space frame as a whole is not easy to disassemble and assemble during construction, and there is no structure for quick positioning and docking when splicing steel space frames together, making it difficult to limit the installation during installation, which is time-consuming and labor-intensive. However, according to the authorization announcement number CN219992708U, a large steel space frame modular steel structure component is provided, including a steel space frame main board. The main board has symmetrical cavities at the top and bottom on one side. The cavities contain bidirectional screw rods. The two ends of the bidirectional screw rods are slidably connected to screw sliders, connecting rods and connecting columns. The main board has four notches and two protrusions on both sides. By engaging the notches and protrusions and rotating the bidirectional screw rods to insert the connecting columns into the notches and protrusions, the connection of two steel space frame main boards can be completed. This method can complete the coplanar and vertical connection between different steel space frame main boards, which facilitates the overall construction of the steel space frame.

[0003] However, this structure can only connect steel space frames in the plane or vertical direction, and cannot flexibly adjust the installation angle between steel space frames according to installation requirements, which limits the flexibility of structural assembly. Therefore, we provide a detachable steel space frame structure to solve this problem.

[0004] To address these issues, we offer a detachable steel space frame structure. Summary of the Invention

[0005] The purpose of this invention is to provide a detachable steel space frame structure to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A detachable steel space frame structure includes a main steel space frame, wherein four notches and two protrusions are fixedly provided on both sides of the main steel space frame;

[0008] The steel mesh frame main board located on one side of the notch has a cavity inside. A bidirectional lead screw is rotatably connected to the inside of the cavity. Four lead screw sliders are threaded to the outside of the bidirectional lead screw. Each lead screw slider has a connecting rod installed on the side facing away from the protrusion and is fixedly connected to a connecting post. The four connecting posts correspond one-to-one with the notch. A knob is installed at the top of the bidirectional lead screw.

[0009] The connecting post is cylindrical, with connecting holes one at the top and bottom of the notch, and the connecting post is adapted to the connecting holes one; a connecting hole two is provided on the protrusion, and the diameter of the connecting hole one and the diameter of the connecting hole two are the same.

[0010] The top and bottom sides of the steel space frame main board are equipped with adjustment and fixing units, which are suitable for angle adjustment when two sets of steel space frame main boards are connected.

[0011] In a further technical solution, the adjustment and fixing unit includes two fixing seats, which are respectively fixedly connected to the same side of the top and bottom of the steel grid main board, and located on the upper and lower sides of the notch.

[0012] The inner side of the fixed base has an internal cavity and is rotatably connected to a rotating bent rod. The end wall of the rotating bent rod away from the fixed base has a storage groove.

[0013] Two fixed bent rods are fixedly connected to the other side of the top and bottom of the steel space frame main board;

[0014] When adjacent steel space frame main boards are installed, the top end of the fixing rod is snapped into the inside of the storage groove, and the bottom end of the fixing rod is fixedly installed on the steel space frame main board.

[0015] A snap-fit ​​assembly is installed between the rotating bent rod and the fixed bent rod, and a limit assembly is installed on the fixed base.

[0016] In a further technical solution, the snap-fit ​​assembly includes a movable groove, which is formed at the top of the fixed bent rod and is configured to open upwards;

[0017] A limiting spring is fixedly connected to the inner wall of the bottom end of the movable groove, and a limiting block is fixedly connected to the top end of the limiting spring. The limiting block is slidably connected to the inner side of the movable groove. The top end of the rotating bent rod is connected to the upper part of the storage groove and has a slot. The top end of the limiting block is engaged with the inner side of the slot. The inner diameter of the slot and the movable groove are matched with the outer diameter of the limiting block.

[0018] In a further technical solution, the limiting component includes a threaded rod, which is threadedly connected to the end wall of the fixed seat, and its rod end is connected to the built-in cavity in the fixed seat and abuts against the rotating bent rod.

[0019] In a further technical solution, both side walls of the steel grid main board and the side walls of the protrusion portion are set as rounded corner edge structures.

[0020] In a further technical solution, the diameter of the storage slot is matched with the diameter of the top column of the fixed bent rod;

[0021] The storage slot extends to the end; the top of the rotating bend and the top of the fixed bend are horizontal with the connecting rod.

[0022] In a further technical solution, the top of the limiting block is arc-shaped, and the lowest point of the arc surface is flush with the top of the fixed bending rod.

[0023] In a further technical solution, a butterfly knob is fixedly connected to the end of the threaded rod extending outside the fixed base.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] This invention, by modifying the connecting column into a cylindrical structure, allows the protrusion to rotate around the connecting column when the two steel space frame main boards are connected, thereby achieving angle adjustment between the two main boards. At the same time, by setting adjustment and fixing units on both sides of the top and bottom of the steel space frame main boards, the angle of the two main boards can be fixed by the sleeve of two bent rods, the engagement of the limiting block and the slot, and the limiting of the threaded rod, thus increasing the flexibility of the device. Attached Figure Description

[0026] Figure 1 is a schematic diagram of the structure of this utility model.

[0027] Figure 2 is a disassembly diagram of the adjustment and fixing unit of this utility model.

[0028] Figure 3 is an internal sectional view of the two steel space frame main boards of this utility model when connected.

[0029] Figure 4 is a partial enlarged view of point A in Figure 3 of this utility model.

[0030] Figure 5 is a structural schematic diagram of the connection of the three steel space frame main boards of this utility model.

[0031] Figure 6 is a partial enlarged view of point B in Figure 5 of this utility model.

[0032] Figure 7 is a partial enlarged view of point C in Figure 5 of this utility model.

[0033] Reference numerals: 1. Main board of steel space frame; 2. Notch; 3. Protrusion; 4. Cavity; 5. Two-way lead screw; 6. Lead screw slider; 7. Connecting column; 8. Knob; 9. Fixing seat; 10. Rotating bent rod; 11. Storage groove; 12. Fixing bent rod; 13. Movable groove; 14. Limiting spring; 15. Limiting block; 16. Slot; 17. Threaded rod; 18. Butterfly knob. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Example 1

[0036] In one embodiment, as shown in Figures 1 and 3-7, the detachable steel space frame structure includes a main steel space frame 1. Four notches 2 and two protrusions 3 are fixedly provided on both sides of the main steel space frame 1. A cavity 4 is opened inside one side of the main steel space frame 1. A bidirectional lead screw 5 is rotatably connected to the inside of the cavity 4. Four lead screw sliders 6 are threadedly connected to the outside of the bidirectional lead screw 5. A connecting post 7 is fixedly connected to one side of each lead screw slider 6 through a connecting rod. The four connecting posts 7 correspond one-to-one with the notches 2. A knob 8 for easy rotation is fixedly connected to the top of the bidirectional lead screw 5.

[0037] As shown in Figure 3, the connecting column 7 is modified into a cylindrical structure. This cylindrical structure facilitates the connection of two steel space frame main plates 1, allowing the protrusion 3 to rotate around it to change the angle between the two main plates. Both side walls of the steel space frame main plate 1 and the side walls of the protrusion 3 are rounded to ensure smooth relative rotation of the two main plates. The connecting column 7 is cylindrical, with connecting holes 1 at the top and bottom of the notch 2, which are adapted to the connecting column 7. A second connecting hole is provided on the protrusion 3, with the same diameter as the first connecting hole. The notch and the cavity are connected through the first connecting hole.

[0038] Adjustment and fixing units are provided on both sides of the top and bottom of the steel space frame main board 1. The adjustment and fixing units are used to fix the two steel space frame main boards 1 after rotation adjustment, as shown in Figures 3 and 4. The adjustment and fixing units include two fixing seats 9, which are fixedly connected to one side of the top and bottom of the steel space frame main board 1 respectively. A rotating bent rod 10 is rotatably connected to the inner side of the fixing seat 9. A storage groove 11 is opened on the end wall of the rotating bent rod 10. Two fixing bent rods 12 are fixedly connected to the other side of the top and bottom of the steel space frame main board 1. One top end of the fixing bent rod 12 is engaged with the inner side of the storage groove 11. The diameter of the storage groove 11 is matched with the diameter of the top column of the fixing bent rod 12 so that the fixing bent rod 12 can be smoothly slid into the inner side of the storage groove 11.

[0039] The rotating bent rod 10 and the fixed bent rod 12 are equipped with a locking assembly. The locking assembly is used to fix and release the connection between the two bent rods, as shown in Figure 4. The locking assembly includes a movable groove 13, which is opened at the top of the fixed bent rod 12. A limit spring 14 is fixedly connected to the inner wall of the bottom end of the movable groove 13. A limit block 15 is fixedly connected to the top of the limit spring 14. The limit block 15 is slidably connected to the inner side of the movable groove 13. The top of the rotating bent rod 10 is connected to the upper part of the storage groove 11 and has a locking groove 16. The top of the limit block 15 is locked. Inside the slot 16, the limiting block 15 at the top is pushed by the limiting spring 14 and engaged inside the slot 16, thus fixing the two bent rods together. The limiting block 15 can be released by simply pressing it down to disengage it from the slot 16. The top of the limiting block 15 is arc-shaped, and the lowest point of the arc is flush with the top of the fixed bent rod 12. This arc structure allows the rotating bent rod 10 to be squeezed into the movable groove 13 along the arc of the limiting block 15 when the two bent rods are inserted, so as to achieve smooth insertion of the two bent rods.

[0040] Example 2

[0041] As shown in Figure 2, another embodiment of this utility model is presented. Based on embodiment 1, the difference from embodiment 1 is that a limiting component is provided at one end of the fixed base 9. The limiting component can fix the rotating bent rod 10 relative to the fixed base 9. The limiting component is set as a threaded rod 17, which is threadedly connected to the end wall of the fixed base 9, and one end of it is fixedly abutted against the rotating bent rod 10. The fixed abutment between the threaded rod 17 and the rotating bent rod 10 can achieve a stable fixation between the rotating bent rod 10 and the fixed base 9, thereby achieving the angle fixation between the two steel grid main boards 1. A butterfly knob 18 is fixedly connected to the end wall of the threaded rod 17. The design of the butterfly knob 18 makes it convenient for the user to rotate the threaded rod 17.

[0042] Working principle: When connecting two steel space frame main boards 1, the protrusion 3 of one main board 1 is aligned with the notch 2 of the other main board for insertion. Simultaneously, the two bent rods on both sides of the top are also inserted. During the process of the fixed bent rod 12 being inserted into the movable slot 11 of the rotating bent rod 10, the edge of the rotating bent rod 10 will press it into the interior of the movable slot 13 along the arc surface of the limiting block 15. The limiting spring 14 is compressed to achieve smooth insertion of the two bent rods. When the insertion reaches the point where the limiting block 15 overlaps with the slot 16, under the action of the rebound force of the limiting spring 14, the limiting block 15 moves upward and engages with the interior of the slot 16. This achieves the fixed engagement of the two bent rods, and then rotation... Knob 8 drives the bidirectional lead screw 5 to rotate. The rotating bidirectional lead screw 5 will drive the connecting post 7 to move up and down through the lead screw slider 6 and the connecting rod. The connecting post 7 will then be inserted into the inside of the notch 2 and the protrusion 3 to securely fix the steel grid main board 1. At this time, the two steel grid main boards 1 can be limited to rotate. The protrusion 3 will rotate around the connecting post 7. After the rotation is adjusted to the target angle, the threaded rod 17 is screwed inward through the butterfly knob 18 to fix the rotating bent rod 10 relative to the fixing seat 9, thus completing the angle adjustment and fixing of the two main boards. If three steel grid main boards 1 need to be connected to each other, rotate them upside down so that the protrusion 3 is inserted into the remaining notch 2 and repeat the above steps.

[0043] The above embodiments disclose a detachable steel space frame structure. By setting the connecting column 7 as a cylindrical structure and setting adjustment and fixing units on both sides of the top and bottom of the steel space frame main board 1, the angle of two or three connected steel space frame main boards 1 can be adjusted and fixed, thereby increasing the flexibility of the device.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A detachable steel space frame structure, comprising a main steel space frame (1), wherein four notches (2) and two protrusions (3) are fixedly provided on both sides of the main steel space frame (1); a cavity (4) is provided inside the main steel space frame (1) located on one side of the notches (2), a bidirectional lead screw (5) is rotatably connected to the inner side of the cavity (4), and four lead screw sliders (6) are threadedly connected to the outer side of the bidirectional lead screw (5), each lead screw slider (6) has a connecting rod installed on the side facing away from the protrusions (3), and a connecting post (7) is fixedly connected thereto, the four connecting posts (7) correspond one-to-one with the notches (2), and a knob (8) is installed at the top of the bidirectional lead screw (5); characterized in that: The connecting column (7) is cylindrical, and a connecting round hole is provided at the top and bottom of the notch (2), which is adapted to the connecting column (7); a connecting round hole is provided on the protrusion (3), and the diameter of the connecting round hole is the same as that of the connecting round hole; both the top and bottom sides of the steel grid main board (1) are equipped with adjustment and fixing units, which are suitable for angle adjustment when the two sets of steel grid main boards (1) are connected.

2. The detachable steel space frame structure according to claim 1, characterized in that, The adjustment and fixing unit includes two fixing seats (9), which are respectively fixedly connected to the same side of the top and bottom of the steel grid main board (1) and located on the upper and lower sides of the notch (2); the inner side of the fixing seat (9) has an internal cavity and is rotatably connected to a rotating bent rod (10), and the end wall of the rotating bent rod (10) away from the fixing seat (9) has a storage groove (11); the other side of the top and bottom of the steel grid main board (1) is fixedly connected to two fixing bent rods (12); when adjacent steel grid main boards (1) are installed, the top end of the fixing bent rod (12) is snapped into the inner side of the storage groove (11), and the bottom end of the fixing bent rod (12) is fixedly installed on the steel grid main board (1); a snap-fit ​​assembly is installed between the rotating bent rod (10) and the fixing bent rod (12), and a limit assembly is installed on the fixing seat (9).

3. The detachable steel space frame structure according to claim 2, characterized in that, The snap-fit ​​assembly includes a movable groove (13), which is located at the top of the fixed bent rod (12) and opens upwards. A limiting spring (14) is fixedly connected to the inner wall of the bottom end of the movable groove (13), and a limiting block (15) is fixedly connected to the top of the limiting spring (14). The limiting block (15) is slidably connected to the inner side of the movable groove (13). The top of the rotating bent rod (10) is connected to the upper part of the storage groove (11) and a snap-fit ​​groove (16) is provided. The top of the limiting block (15) is snapped into the inner side of the snap-fit ​​groove (16). The inner diameter of the snap-fit ​​groove (16) and the movable groove (13) are adapted to the outer diameter of the limiting block (15).

4. The detachable steel space frame structure according to claim 2, characterized in that, The limiting component includes a threaded rod (17), which is threaded to the end wall of the fixed seat (9), and its rod end is connected to the built-in cavity in the fixed seat (9) and abuts against the rotating bent rod (10).

5. The detachable steel space frame structure according to claim 1, characterized in that, The side walls of the main steel grid (1) and the side walls of the protrusion (3) are both set with rounded corner edges.

6. The detachable steel space frame structure according to claim 2, characterized in that, The diameter of the storage groove (11) matches the diameter of the top column of the fixed bending rod (12); the storage groove (11) extends to the end; the top of the rotating bending rod (10) is horizontal to the top of the fixed bending rod (12) and the connecting rod.

7. The detachable steel space frame structure according to claim 3, characterized in that, The top of the limiting block (15) is arc-shaped, and the lowest position of the arc surface is flush with the top of the fixed bending rod (12).

8. The detachable steel space frame structure according to claim 4, characterized in that, The threaded rod (17) is fixedly connected to a butterfly knob (18) at the end extending outside the fixed seat (9).

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