Large-span heavy steel structure plant truss structure

Abstract

The invention relates to the technical field of truss structures, in particular to a large-span heavy steel structure plant truss structure which comprises a stand column, two connecting beams, a butt joint mechanism, a hydraulic mechanism, a traction mechanism and an indicating mechanism. The connecting columns and the connecting plates on the two sides are driven by the traction mechanism to get close to each other, so that the two connecting beams are stably connected in a butt joint mode, bolts with high strength are used for fastening, combined installation of the truss can be facilitated, and the supporting columns can be conveniently assembled through the pressure effect generated by the hydraulic columns on the supporting columns. The connecting plates on the two sides are forced to keep a high-strength clamping effect, the connecting strength between the two connecting beams can be further improved, the deformation effect of the connecting position of the two connecting beams can be instantly reflected through rotation of the supporting columns, and the shifting rods are pushed through the jacking strips to be hinged. And it can be guaranteed that the shifting rod can push down the gravity block from the top of the fixing frame, and the deformation condition can be visually indicated.

Description

Technical Field

[0001] The invention relates to the technical field of truss structures, and in particular to a large-span heavy-duty steel structure factory building truss structure. Background Art

[0002] A truss is a structure made of rods connected at both ends by hinges, rivets or bolts. The rods mainly bear tension or pressure, which can give full play to the role of materials, save materials and reduce the weight of the structure. Especially in some factory working environments, truss structures are usually used as the frame part of the factory.

[0003] In some factory truss structures with larger spans, the top beam at the highest point is usually composed of two short beams for connection and fixation, and a column beam is set on the top to support the center point of the truss. However, when the steel structure truss achieves a large span working effect, the pressure on the center will be greater. In addition, the wind force or ground vibration borne by the factory will be reflected in the entire truss structure, which will also cause the connection at the top center point of the truss to become loose under the action of multiple pressures, or cause the rivets or bolts at the connection to deform. In order to prevent the loose connection due to deformation, the truss needs to be inspected and maintained regularly. Due to the particularity of the truss structure, it is not convenient for maintenance personnel to conduct corresponding inspections on the top connection. The work is relatively troublesome and has a high risk factor, and it is impossible to intuitively judge the stability of the truss connection. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the background technology and to propose a large-span heavy-duty steel structure factory building truss structure.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A large-span heavy-duty steel structure factory building truss structure, comprising:

[0007] A column and two connecting beams, one end of the two connecting beams are butt-jointed and fixed to each other, the column is arranged below the butt joint of the two connecting beams, the bottom end of the column is fixed to the ground, and the two connecting beams are used to fix the truss beams;

[0008] A docking mechanism, which is fixedly connected to the top of the column and is used to dock and fix two connecting beams;

[0009] A hydraulic mechanism, which is used to ensure the connection strength of the docking mechanism and to detect the gap at the connection of the two connecting beams, and the hydraulic mechanism is arranged inside the docking mechanism;

[0010] A traction mechanism, which is arranged inside the docking mechanism and is used to pull and slide the hydraulic mechanism;

[0011] And an indicating mechanism, two indicating mechanisms are symmetrically fixedly connected to the two sides of the column, and the indicating mechanism is used to visually indicate the rotation of the hydraulic mechanism.

[0012] In the above-mentioned large-span heavy-duty steel structure factory truss structure, the docking mechanism includes a connecting seat and two connecting plates. The connecting seat is fixed to the top of the column by bolts, and the two connecting plates are symmetrically slidably connected to the top of the connecting seat. The two connecting plates are respectively slidably connected to one end of the two connecting beams, and the two connecting plates can push the opposite ends of the two connecting beams closer to each other.

[0013] In the above-mentioned large-span heavy-duty steel structure factory truss structure, the hydraulic mechanism includes two connecting columns and two pillars. The connecting column is slidably connected to the inside of the connecting seat, and the pillar is rotatably connected to the inside of the connecting column. Connecting feet are symmetrically fixedly connected on both sides of the pillar surface, and the top of the connecting foot is penetrated by the connecting column. The two connecting feet located on the same pillar surface penetrate to one end of the outside of the connecting column and are fixedly connected to the bottom of one of the connecting plates. A hydraulic box is fixedly connected to the inside of the connecting column, and a hydraulic column is slidably connected to the inside of the hydraulic box. One end of the hydraulic column is penetrated by one side of the hydraulic box, and the end of the hydraulic column that penetrates to the outside of the hydraulic box is fixedly connected to the pillar. The inside of the hydraulic box is used to hold hydraulic oil, and a baffle is fixedly connected to the inside of the hydraulic box, and dense holes are opened on the surface of the baffle.

[0014] In the above-mentioned large-span heavy-duty steel structure factory truss structure, the traction mechanism includes a traction screw and two traction blocks. The traction screw is rotatably connected to the inside of the connecting seat, and the traction screw is located between the two connecting columns. The surfaces on the opposite sides of the two connecting columns are fixedly connected to the hinged seats. Two traction rods are symmetrically hinged on both sides of the hinged seat. The other ends of the two traction rods are respectively hinged to the two traction blocks, and the two traction blocks are symmetrically threadedly connected to the surface of the traction screw.

[0015] In the above-mentioned large-span heavy-duty steel structure factory truss structure, the indicating mechanism includes a fixed frame, a gravity block and a lever. The two fixed frames are symmetrically fixedly connected to the two sides of the column surface, the gravity block is arranged on the top of the fixed frame, the lever is hinged to the connecting seat, and the bottom end of the lever is penetrated by the bottom of the connecting seat, one end of the lever penetrates to the outside of the connecting seat and is slidably connected to the inside of the fixed frame, and the lever can push the gravity block and the fixed frame to slide through the rotation effect, and the bottom of the gravity block is fixedly connected with a connecting steel rope, and the other end of the connecting steel rope is fixedly connected to the inside of the fixed frame.

[0016] In the above-mentioned large-span heavy-duty steel structure factory truss structure, one end of the pillar is fixedly connected with a rotating tooth, the rotating tooth is rotatably connected to the inside of the connecting seat, the inside of the connecting seat is slidably connected with a top bar, the top bar is slidably connected to the bottom of the rotating tooth, and the top bar is engaged with the rotating tooth, and the other end of the top bar is hinged to the top end of the lever.

[0017] In the above-mentioned large-span heavy-duty steel structure factory truss structure, a fixed tooth is fixed at one end of the traction screw, and the fixed tooth is rotatably connected to the surface of one side of the outside of the connecting seat. The surface of the fixed tooth is fixedly connected to a turntable, and the turntable is rotatably connected to the outside of the connecting seat. A hydraulic cylinder is fixedly connected to one side of the surface of the connecting seat, and a fixed card is fixedly connected to the output end of the hydraulic cylinder, and the fixed card is clamped with the bottom of the fixed tooth.

[0018] In the above-mentioned large-span heavy-duty steel structure factory truss structure, one side of the lever surface is fixedly connected to an extrusion block, the extrusion block is rotatably connected to the inside of the connecting seat, one side of the extrusion block surface is fixedly connected to an extrusion spring, and the other end of the extrusion spring is fixedly connected to the inside of the connecting seat.

[0019] Compared with the existing technology, the advantages of this large-span heavy-duty steel structure factory truss structure are:

[0020] 1. The connecting columns and connecting plates on both sides are driven close to each other by the traction mechanism, so as to stably connect the two connecting beams and fasten them with high-strength bolts, which can facilitate the combined installation of the truss;

[0021] 2. The pressure effect of the hydraulic column on the pillar forces the connection plates on both sides to maintain a relatively high clamping effect, which can further improve the connection strength between the two connection beams and maintain the stability of the connection;

[0022] 3. The deformation effect of the connection between the two connecting beams can be immediately responded to by the rotation of the pillars, and the top bar can push the lever to articulate, so that the lever can push the gravity block down from the top of the fixed frame, and the deformation can be visually indicated, so as to ensure that the problems of the truss are discovered in time;

[0023] To summarize, the present invention drives the connecting columns and connecting plates on both sides to approach each other through the traction mechanism, so as to stably connect the two connecting beams, and use high-strength bolts to fasten them, which can facilitate the combined installation of the trusses, and the pressure effect of the hydraulic column on the support column forces the connecting plates on both sides to maintain a relatively high-strength clamping effect, which can further improve the connection strength between the two connecting beams, and the deformation effect of the connection between the two connecting beams is instantly responded to by the rotation of the support column, and the push rod is hinged by the top bar, which can ensure that the push rod can push the gravity block down from the top of the fixed frame, and the deformation condition can be intuitively indicated. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 It is a schematic diagram of the connection structure of the connection pin of the present invention;

[0026] Figure 3 It is a schematic diagram of the cross-sectional structure of the top of the connecting seat of the present invention;

[0027] Figure 4 It is a schematic diagram of the side cross-sectional structure of the connecting seat of the present invention;

[0028] Figure 5 is a schematic cross-sectional structural diagram of a fixing frame of the present invention;

[0029] Figure 6 It is a schematic diagram of the cross-sectional structure of the extrusion block of the present invention;

[0030] Figure 7 The present invention Figure 6 A schematic diagram of the partially enlarged structure at center A;

[0031] Figure 8 It is a schematic diagram of the support connection structure of the present invention;

[0032] Fig. 9 It is a schematic diagram of the cross-sectional structure of the connecting column of the present invention;

[0033] Fig.10 It is a schematic cross-sectional structural diagram of the hydraulic box of the present invention;

[0034] Fig.11 The present invention Fig.10 Schematic diagram of the local enlarged structure at point B in the middle.

[0035] In the figure: 1. column; 2. connecting beam; 3. docking mechanism; 301. connecting seat; 302. connecting plate; 4. hydraulic mechanism; 401. connecting column; 402. pillar; 5. traction mechanism; 501. traction screw; 502. traction block; 6. indicating mechanism; 601. fixing frame; 602. gravity block; 603. lever; 7. connecting foot; 8. hydraulic box; 9. hydraulic column; 10. baffle; 11. dense hole; 12. articulated seat; 13. traction rod; 14. connecting steel rope; 15. rotating gear; 16. top bar; 17. fixed gear; 18. turntable; 19. hydraulic cylinder; 20. fixing card; 21. extrusion block; 22. extrusion spring. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] Reference Figure 1-Figure 11 A large-span heavy-duty steel structure factory truss structure includes a column 1 and two connecting beams 2. One ends of the two connecting beams 2 are butt-jointed and fixed to each other. The column 1 is arranged below the butt joint of the two connecting beams 2. The bottom end of the column 1 is fixedly arranged on the ground. The two connecting beams 2 are used to fix the truss beams. The butt joint mechanism 3 is fixedly connected to the top of the column 1, and the butt joint mechanism 3 is used to butt-join and fix the two connecting beams 2. The butt joint mechanism 3 includes a connecting seat 301 and two connecting plates 302. The connecting seat 301 is fixed to the top of the column 1 by bolts. The two connecting plates 302 are symmetrically slidably connected to the top of the connecting seat 301. The two connecting plates 302 are respectively slidably connected to one end of the two connecting beams 2. And the two connecting plates 302 can push the opposite ends of the two connecting beams 2 closer to each other, the traction mechanism 5, the traction mechanism 5 is arranged inside the docking mechanism 3, and is used to pull and slide the hydraulic mechanism 4, the traction mechanism 5 includes a traction screw 501 and two traction blocks 502, the traction screw 501 is rotatably connected to the inside of the connecting seat 301, and the traction screw 501 is located between the two connecting columns 401, the surfaces of the opposite sides of the two connecting columns 401 are fixedly connected with the hinge seat 12, and the two sides of the hinge seat 12 are symmetrically hinged with two traction rods 13, the other ends of the two traction rods 13 are respectively hinged to the two traction blocks 502, and the two traction blocks 502 are symmetrically threadedly connected to the surface of the traction screw 501.

[0039] Among them, the two connecting beams 2 are positioned by two connecting plates 302, and the two connecting columns 401 are driven to slide toward each other along the inside of the connecting seat 301 by rotating the traction screw 501. The two connecting columns 401 are driven to approach each other through the sliding effect of the two traction blocks 502 moving away from each other, so that the two connecting beams 2 can be pushed and clamped by the two connecting plates 302, which can facilitate the accuracy of the docking and fixing position of the two connecting beams 2 and improve the stability of the connection between the two connecting beams 2.

[0040] The hydraulic mechanism 4 is used to ensure the connection strength of the docking mechanism 3 and to detect the gap at the connection of the two connecting beams 2. The hydraulic mechanism 4 is arranged inside the docking mechanism 3. The hydraulic mechanism 4 includes two connecting columns 401 and two pillars 402. The connecting column 401 is slidably connected to the inside of the connecting seat 301, and the pillar 402 is rotatably connected to the inside of the connecting column 401. The two sides of the surface of the pillar 402 are symmetrically fixedly connected with connecting feet 7, and the top of the connecting foot 7 is penetrated with the connecting column 401. The two connecting feet 7 located on the surface of the same pillar 402 penetrate to one end of the outside of the connecting column 401 and are fixedly connected to the bottom of one of the connecting plates 302. The inside of the connecting column 401 is fixedly connected with a hydraulic box 8, and the inside of the hydraulic box 8 is slidably connected with a hydraulic column 9. One end of the hydraulic column 9 is penetrated with one side of the hydraulic box 8, and the end of the hydraulic column 9 that penetrates to the outside of the hydraulic box 8 is fixedly connected to the pillar 402. The inside of the hydraulic box 8 is used to hold hydraulic oil. The inside of the hydraulic box 8 is fixedly connected with a baffle 10, and the surface of the baffle 10 is penetrated with dense holes 11.

[0041] Among them, the oil pressure strength generated by the hydraulic oil in the hydraulic box 8 under normal circumstances forces the two pillars 402 to drive the two connecting plates 302 to maintain a relatively stable mutually clamped state, further improving the connection strength between the two connecting beams 2. When the connection between the two connecting beams 2 is deformed, the two connecting beams 2 will separate to both sides along the connection, and squeeze the two connecting plates 302 to both sides respectively. At this time, the pillar 402 will rotate along the connecting column 401 to a certain extent. Due to the characteristic of large tension in the hydraulic oil, under normal circumstances, a stable oil pressure effect can be maintained. When relative rotation occurs between the pillar 402 and the connecting column 401, the hydraulic oil will pass through the dense hole 11 due to strong squeezing, which can ensure that the pillar 402 and the connecting plate 302 can alleviate the potential energy of the two deformations when sliding when adapting to the deformation of the connecting beam 2, thereby improving the safety of the truss structure.

[0042] Indicator mechanism 6, two indicator mechanisms 6 are symmetrically fixedly connected to both sides of the column 1, and the indicator mechanism 6 is used to visually indicate the rotation of the hydraulic mechanism 4. The indicator mechanism 6 includes a fixed frame 601, a gravity block 602 and a lever 603. The two fixed frames 601 are symmetrically fixedly connected to both sides of the surface of the column 1, the gravity block 602 is arranged on the top of the fixed frame 601, the lever 603 is hinged to the connecting seat 301, and the bottom end of the lever 603 is penetrated through the bottom of the connecting seat 301, and the lever 603 penetrates to one end of the outside of the connecting seat 301 and the inside of the fixed frame 601. Sliding connection, and the lever 603 can push the gravity block 602 and the fixed frame 601 to slide through the rotation effect. The bottom of the gravity block 602 is fixedly connected with a connecting steel rope 14, and the other end of the connecting steel rope 14 is fixedly connected to the inside of the fixed frame 601. One end of the pillar 402 is fixedly connected with a rotating tooth 15, and the rotating tooth 15 is rotatably connected to the inside of the connecting seat 301. The inside of the connecting seat 301 is slidably connected with a top bar 16, and the top bar 16 is slidably connected to the bottom of the rotating tooth 15, and the top bar 16 is engaged with the rotating tooth 15, and the other end of the top bar 16 is hinged to the top of the lever 603.

[0043] Among them, the rotating gear 15 is driven to rotate by the support 402, and the top bar 16 can be forced to slide through the meshing effect, so as to push the top of the lever 603, forcing the lever 603 to produce an articulated rotation effect, so as to push the gravity block 602 down from the top of the fixed frame 601. The gravity block 602 will swing on both sides of the surface of the fixed frame 601 and the column 1 through the involvement effect of the connecting steel rope 14, so as to provide an intuitive indication of the deformation effect between the two connecting beams 2.

[0044] A fixed tooth 17 is fixed at one end of the traction screw 501, and the fixed tooth 17 is rotatably connected to the surface of one side of the outside of the connecting seat 301. A turntable 18 is fixedly connected to the surface of the fixed tooth 17, and the turntable 18 is rotatably connected to the outside of the connecting seat 301. A hydraulic cylinder 19 is fixedly connected to one side of the surface of the connecting seat 301, and a fixed card 20 is fixedly connected to the output end of the hydraulic cylinder 19, and the fixed card 20 is clamped with the bottom of the fixed tooth 17.

[0045] Among them, the rotation of the turntable 18 can drive the traction screw 501 to rotate, thereby driving the connecting columns 401 on both sides to slide along the inside of the connecting seat 301 through the traction mechanism 5, and pushing the fixing card 20 upward through the hydraulic cylinder 19. After the fixing card 20 is engaged with the fixed tooth 17, the stability of the traction screw 501 is guaranteed, thereby ensuring the stability of the working state and working effect of this device.

[0046] One side of the surface of the lever 603 is fixedly connected to an extrusion block 21 , which is rotatably connected to the inside of the connecting seat 301 ; one side of the surface of the extrusion block 21 is fixedly connected to an extrusion spring 22 , and the other end of the extrusion spring 22 is fixedly connected to the inside of the connecting seat 301 .

[0047] Among them, the elastic force of the extrusion spring 22 produces a resistance effect on the extrusion block 21, which can maintain the stability of the lever 603 without deflection of the support 402, prevent the lever 603 from shaking due to environmental interference factors, and prevent the staff from misjudging the connection status of the truss structure.

[0048] The specific working principle and use method of the present invention are explained in detail below: When in use, in the first step, the two connecting beams 2 are positioned by the two connecting plates 302, and the two connecting columns 401 are driven to slide toward each other along the inside of the connecting seat 301 by rotating the traction screw 501, and the two connecting columns 401 are driven to move closer to each other through the sliding effect of the two traction blocks 502 moving away from each other, so that the two connecting beams 2 can be pushed and clamped by the two connecting plates 302;

[0049] The second step is to use the hydraulic oil in the hydraulic box 8, under normal circumstances, to generate oil pressure strength, forcing the two pillars 402 to drive the two connecting plates 302 to maintain a relatively stable mutually clamped state, thereby further improving the connection strength between the two connecting beams 2. When the connection between the two connecting beams 2 is deformed, the two connecting beams 2 will separate to both sides along the connection, and squeeze the two connecting plates 302 to both sides respectively. At this time, the pillar 402 will rotate along the connecting column 401 to a certain extent. Due to the characteristics of large tension in the hydraulic oil, under normal circumstances, a stable oil pressure effect can be maintained. When relative rotation occurs between the pillar 402 and the connecting column 401, the hydraulic oil will pass through the dense hole 11 due to strong squeezing, which can ensure that the pillar 402 and the connecting plate 302 can alleviate the potential energy of the two deformations when sliding when adapting to the deformation of the connecting beam 2, thereby improving the safety of the truss structure.

[0050] In the third step, the rotating gear 15 is driven to rotate by the support 402, and the meshing effect can force the top bar 16 to slide, thereby pushing the top of the lever 603, forcing the lever 603 to produce a hinged rotation effect, thereby pushing the gravity block 602 down from the top of the fixed frame 601. The gravity block 602 will swing on both sides of the fixed frame 601 and the surface of the column 1 through the involvement effect of the connecting steel rope 14, thereby providing an intuitive indication of the deformation effect between the two connecting beams 2.

[0051] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A large-span heavy-duty steel structure factory building truss structure, characterized in that: include: A column (1) and two connecting beams (2), one end of the two connecting beams (2) are butt-jointed and fixed to each other, the column (1) is arranged below the butt joint of the two connecting beams (2), the bottom end of the column (1) is fixed to the ground, and the two connecting beams (2) are used to fix the truss beams; A docking mechanism (3), wherein the docking mechanism (3) is fixedly connected to the top of the column (1), and the docking mechanism (3) is used to dock and fix the two connecting beams (2); A hydraulic mechanism (4), the hydraulic mechanism (4) is used to ensure the connection strength of the docking mechanism (3) and to perform gap detection on the connection between the two connecting beams (2), and the hydraulic mechanism (4) is arranged inside the docking mechanism (3); A traction mechanism (5), the traction mechanism (5) being arranged inside the docking mechanism (3) and used for traction and sliding of the hydraulic mechanism (4); And an indicating mechanism (6), wherein two indicating mechanisms (6) are symmetrically fixedly connected to two sides of the column (1), and the indicating mechanism (6) is used to visually indicate the rotation of the hydraulic mechanism (4).

2. The large-span heavy-duty steel structure factory building truss structure according to claim 1 is characterized by: The docking mechanism (3) comprises a connecting seat (301) and two connecting plates (302); the connecting seat (301) is fixed to the top of the column (1) by bolts; the two connecting plates (302) are symmetrically slidably connected to the top of the connecting seat (301); the two connecting plates (302) are respectively slidably connected to one end of the two connecting beams (2); and the two connecting plates (302) can push the opposite ends of the two connecting beams (2) closer to each other.

3. The large-span heavy-duty steel structure factory building truss structure according to claim 2 is characterized by: The hydraulic mechanism (4) comprises two connecting columns (401) and two supporting columns (402), wherein the connecting column (401) is slidably connected to the inside of the connecting seat (301), and the supporting column (402) is rotatably connected to the inside of the connecting column (401), and connecting legs (7) are symmetrically fixedly connected to both sides of the surface of the supporting column (402), and the top of the connecting leg (7) is arranged to penetrate the connecting column (401), and the two connecting legs (7) located on the surface of the same supporting column (402) penetrate to one end of the outside of the connecting column (401) and are connected to one of the blocks. The bottom of the connecting plate (302) is fixedly connected, the interior of the connecting column (401) is fixedly connected with a hydraulic box (8), the interior of the hydraulic box (8) is slidably connected with a hydraulic column (9), one end of the hydraulic column (9) is penetrated with one side of the hydraulic box (8), the end of the hydraulic column (9) that penetrates to the outside of the hydraulic box (8) is fixedly connected with the support column (402), the interior of the hydraulic box (8) is used to contain hydraulic oil, the interior of the hydraulic box (8) is fixedly connected with a baffle (10), and the surface of the baffle (10) is penetrated with dense holes (11).

4. The large-span heavy-duty steel structure factory building truss structure according to claim 3 is characterized by: The traction mechanism (5) comprises a traction screw (501) and two traction blocks (502); the traction screw (501) is rotatably connected to the inside of the connection seat (301), and the traction screw (501) is located between the two connection columns (401); surfaces on opposite sides of the two connection columns (401) are fixedly connected to hinge seats (12); two traction rods (13) are symmetrically hinged on both sides of the hinge seat (12); the other ends of the two traction rods (13) are respectively hinged to the two traction blocks (502); and the two traction blocks (502) are symmetrically threadedly connected to the surface of the traction screw (501).

5. The large-span heavy-duty steel structure factory building truss structure according to claim 1 is characterized by: The indicating mechanism (6) comprises a fixing frame (601), a gravity block (602) and a lever (603), wherein the two fixing frames (601) are symmetrically fixedly connected to the two sides of the surface of the column (1), the gravity block (602) is arranged on the top of the fixing frame (601), the lever (603) is hinged to the connecting seat (301), and the bottom end of the lever (603) is arranged to penetrate the bottom of the connecting seat (301), one end of the lever (603) penetrates to the outside of the connecting seat (301) and is slidably connected to the inside of the fixing frame (601), and the lever (603) can push the gravity block (602) and the fixing frame (601) to slide through the rotation effect, and the bottom of the gravity block (602) is fixedly connected with a connecting steel rope (14), and the other end of the connecting steel rope (14) is fixedly connected to the inside of the fixing frame (601).

6. The large-span heavy-duty steel structure factory building truss structure according to claim 3 is characterized by: One end of the pillar (402) is fixedly connected to a rotating tooth (15), and the rotating tooth (15) is rotatably connected to the inside of the connecting seat (301). The inside of the connecting seat (301) is slidably connected to a top bar (16), and the top bar (16) is slidably connected to the bottom of the rotating tooth (15), and the top bar (16) is meshed with the rotating tooth (15), and the other end of the top bar (16) is hinged to the top end of the shifting rod (603).

7. The large-span heavy-duty steel structure factory building truss structure according to claim 4 is characterized by: A fixed tooth (17) is fixed to one end of the traction screw (501), and the fixed tooth (17) is rotatably connected to a surface on one side of the outside of the connection seat (301). A rotating disk (18) is fixedly connected to the surface of the fixed tooth (17), and the rotating disk (18) is rotatably connected to the outside of the connection seat (301). A hydraulic cylinder (19) is fixedly connected to one side of the surface of the connection seat (301), and a fixed clamp (20) is fixedly connected to the output end of the hydraulic cylinder (19), and the fixed clamp (20) is clamped to the bottom of the fixed tooth (17).

8. The large-span heavy-duty steel structure factory building truss structure according to claim 5 is characterized by: One side of the surface of the shifting rod (603) is fixedly connected to an extrusion block (21), and the extrusion block (21) is rotatably connected to the inside of the connecting seat (301). One side of the surface of the extrusion block (21) is fixedly connected to an extrusion spring (22), and the other end of the extrusion spring (22) is fixedly connected to the inside of the connecting seat (301).

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