Steel structure truss

Abstract

The utility model discloses a steel structure truss which comprises a steel structure truss body, truss fixing plates are fixedly arranged on the two sides of the front end face and the rear end face of the steel structure truss body respectively, bolt through holes are formed in the two sides of the outer surfaces of the truss fixing plates respectively, and bolts are inserted into the bolt through holes. A fixed anti-rotation cover is arranged on the outer side of the hexagonal bolt head of the bolt, a hexagonal groove is formed in the face, facing the nearest bolt through hole, of the fixed anti-rotation cover, and the hexagonal bolt head of the bolt is clamped into the hexagonal groove; the two sides of the outer surface of the fixed anti-rotation cover are each provided with a through hole, and a conical fixing rod is movably inserted into each through hole. The anti-rotation bolt has the advantages that the hexagonal bolt head of the bolt can be fixed by fixing the anti-rotation cover, so that the bolt is prevented from rotating and loosening, and the overall stability of a steel structure truss main body fixed by the bolt is improved by adopting the technical scheme.

Description

Technical Field

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

[0002] Steel structures are structures made of steel materials and are one of the main types of building structures. The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of steel sections and steel plates. Rust removal and prevention processes such as silanization, pure manganese phosphating, water washing and drying, and galvanizing are used. The components or parts are usually connected by welds, bolts or rivets. Due to its light weight and simple construction, it is widely used in large factories, stadiums, super high-rise buildings, bridges and other fields.

[0003] Steel trusses refer to trusses made of steel. They are commonly used as the main load-bearing components in the roof structures of industrial and civil buildings, crane beams, bridges, and hydraulic gates. Various types of towers, such as mast towers, television towers, and transmission line towers, often use spatial steel trusses composed of three-sided, four-sided, or multi-sided planar lattice frames.

[0004] However, the bolted steel truss may loosen during long-term use due to quality issues, improper preload torque, insufficient strength and fatigue strength, and corrosion, thus affecting the overall fixing strength of the steel truss. Therefore, it does not meet the existing requirements. To address this, we propose a steel truss. Utility Model Content

[0005] The purpose of this utility model is to provide a steel structure truss to solve the problems mentioned in the background art, such as the bolted steel structure truss that may loosen during long-term use due to quality problems, improper pre-tightening torque, insufficient strength and fatigue strength, and corrosion, thereby affecting the overall fixing strength of the steel structure truss.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a steel structure truss, including a steel structure truss body, a truss fixing plate is fixedly provided on both sides of the front and rear end faces of the steel structure truss body, a bolt through hole is provided on both sides of the outer surface of the truss fixing plate, a bolt is inserted into the bolt through hole, a fixing anti-rotation cover is provided on the outer side of the hexagonal bolt head of the bolt, a hexagonal groove is provided on the surface of the fixing anti-rotation cover facing the nearest bolt through hole, and the hexagonal bolt head of the bolt is inserted into the interior of the hexagonal groove;

[0007] Both sides of the outer surface of the fixed anti-rotation cover are provided with a through hole, and a conical fixing rod is movably inserted into the through hole. On one side of the two through holes on the same outer surface of the fixed anti-rotation cover, a U-shaped rubber frame is provided to be fixed to the outer surface of the truss fixing plate.

[0008] Preferably, a circular groove is fixedly provided on one side of the outer surface of the conical fixing rod, and a slot extending into the interior of the conical fixing rod is provided at the middle position of the inner wall of the circular groove. A push rod is inserted into the slot, and both sides of the push rod facing the nearest U-shaped rubber frame are inclined surfaces. A locking block is provided on one side of the inclined surface and is slidably connected to the conical fixing rod.

[0009] Preferably, a strip groove is provided on one side of the outer surface of the card block, the inside of the strip groove contains a spring, and the two ends of the spring are respectively connected to the inside of the tapered fixing rod and the inner wall of the strip groove.

[0010] Preferably, the distance between the front end face of the U-shaped rubber frame and the rear end face of the hexagonal groove is the same as the distance between the front end face of the push cap and the rear end face of the card block, and the push cap and the conical fixing rod are integrally formed.

[0011] Preferably, the spiral rubber frame is spiral in shape, and the outer side of the spiral rubber frame is provided with a spiral groove located inside the truss fixing plate, and the spiral rubber frame is locked inside the spiral groove.

[0012] Preferably, the shape of the inner wall of the hexagonal groove corresponds to the shape of the hexagonal bolt head, and the outer surface of the hexagonal bolt head fits against the inner wall of the hexagonal groove.

[0013] Preferably, the outer surface of the tapered fixing rod is in contact with the inner wall of the through hole, and the tapered fixing rod is slidably connected to the through hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model involves fixing the anti-rotation cover onto the outer surface of the hexagonal bolt head after the steel truss body is fixed with bolts. Then, two conical fixing rods are inserted into the two through holes on the outer surface of the anti-rotation cover and pushed inward to pass through the U-shaped rubber frame fixed inside the truss fixing plate. This fixes the anti-rotation cover and the hexagonal bolt head. The above technical solution can fix the hexagonal bolt head to prevent the bolt from rotating and loosening, thereby improving the overall stability of the installed steel truss body.

[0016] 2. In this utility model, after the conical fixing rod passes through the U-shaped rubber frame, the push rod is pushed inward, thereby simultaneously pushing outward two locking blocks located inside the conical fixing rod, so that they are locked onto the outer surface of the U-shaped rubber frame. The locking blocks locked onto the outer surface of the U-shaped rubber frame in the above technical solution can prevent the conical fixing rod from detaching on its own, thereby preventing the fixing of the anti-rotation cover from being released. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This utility model Figure 1 Enlarged view of the structure at point A in the middle;

[0019] Figure 3 This utility model Figure 2 Enlarged view of the structure at point B;

[0020] Figure 4 This utility model Figure 2 Enlarged view of the structure at point C.

[0021] In the diagram: 1. Main body of steel truss; 2. Truss fixing plate; 3. Bolt through hole; 4. Bolt; 5. Fixing anti-rotation cover; 6. Hexagonal groove; 7. U-shaped rubber frame; 8. Through hole; 9. Conical fixing rod; 10. Push cap; 11. Circular groove; 12. Slot; 13. Push rod; 14. Inclined surface; 15. Locking block; 16. Strip groove; 17. Spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] The steel truss main body 1 (model F82313), bolt 4 (model M24) and spring 17 (model JX110) mentioned in this utility model can be obtained from the market or through private customization.

[0024] like Figure 1 and Figure 2 As shown, one embodiment of this utility model is provided: a steel structure truss, including a steel structure truss body 1, a truss fixing plate 2 is fixedly provided on both sides of the front and rear end faces of the steel structure truss body 1, a bolt through hole 3 is provided on both sides of the outer surface of the truss fixing plate 2, a bolt 4 is inserted into the bolt through hole 3, a fixing anti-rotation cover 5 is provided on the outer side of the hexagonal bolt head of the bolt 4, and a hexagonal groove 6 is provided on the surface of the fixing anti-rotation cover 5 facing the nearest bolt through hole 3, and the hexagonal bolt head of the bolt 4 is inserted into the interior of the hexagonal groove 6;

[0025] Both sides of the outer surface of the fixed anti-rotation cover 5 are provided with a through hole 8. A conical fixing rod 9 is movably inserted into the through hole 8. On one side of the two through holes 8 on the outer surface of the same fixed anti-rotation cover 5, there is a U-shaped rubber frame 7 fixed to the outer surface of the truss fixing plate 2.

[0026] As a preferred technical solution in this embodiment, such as Figure 2 and Figure 3 As shown, the shape of the inner wall of the hexagonal groove 6 corresponds to the shape of the hexagonal bolt head of the bolt 4, and the outer surface of the hexagonal bolt head of the bolt 4 fits against the inner wall of the hexagonal groove 6. After the main body of the steel truss 1 is fixed by the bolt 4, the anti-rotation cover 5 is placed on the outer surface of the hexagonal bolt head of the bolt 4 through the hexagonal groove 6. Then, two conical fixing rods 9 are inserted into the two through holes 8 located on the outer surface of the anti-rotation cover 5, and the conical fixing rods 9 are pushed inward so that they pass through the U-shaped rubber frame 7 fixed inside the truss fixing plate 2, thereby fixing the anti-rotation cover 5 and the hexagonal bolt head of the bolt 4. This embodiment can fix the hexagonal bolt head of the bolt 4 to prevent the bolt 4 from rotating and loosening, thereby improving the overall stability of the installed main body of the steel truss 1.

[0027] As a preferred technical solution in this embodiment, such as Figure 2 , Figure 3 and Figure 4 As shown, the distance between the front end face of the U-shaped rubber frame 7 and the rear end face of the hexagonal groove 6 is the same as the distance between the front end face of the push cap 10 and the rear end face of the locking block 15, and the push cap 10 and the conical fixing rod 9 are integrally formed; a circular groove 11 is fixedly provided on one side of the outer surface of the conical fixing rod 9, and a slot 12 extending into the interior of the conical fixing rod 9 is provided in the middle of the inner wall of the circular groove 11. A push rod 13 is inserted into the slot 12, and the two sides of the push rod 13 facing the nearest U-shaped rubber frame 7 are inclined surfaces 14. One side of the inclined surface 14 is provided with a surface that is perpendicular to the conical fixing rod 9. The sliding connection of the locking block 15; when the push cap 10 fixed to the outer surface of the conical fixing rod 9 contacts the fixed anti-rotation cover 5, it pushes the conical fixing rod 9 inward. As the conical fixing rod 9 goes deeper, the inclined surface 14 on the outer surface of the conical fixing rod 9 will contact the locking block 15 and push the locking block 15 outward. As the locking block 15 moves, the locking block 15 will be locked on the outer surface of the U-shaped rubber frame 7. The locking block 15 locked on the outer surface of the U-shaped rubber frame 7 in the above technical solution can prevent the conical fixing rod 9 from detaching on its own, thereby preventing the fixed anti-rotation cover 5 from being released.

[0028] A slot 16 is provided on one side of the outer surface of the locking block 15. The slot 16 contains a spring 17, and the two ends of the spring 17 are connected to the inside of the tapered fixing rod 9 and the inner wall of the slot 16, respectively. When the locking block 15 is pushed outward, it will compress the spring 17 connected to the slot 16 on its outer surface.

[0029] When it is necessary to remove the fixed anti-rotation cover 5, pull the push rod 13 outward. With the movement of the push rod 13 and the reaction force of the squeezed spring 17, the locking block 15 can be gradually pushed back to its original position, thereby releasing the fixation of the conical fixing rod 9. After the fixation of the conical fixing rod 9 is released, pull out the conical fixing rod 9. After both conical fixing rods 9 located on the same fixed anti-rotation cover 5 are pulled out, the fixed anti-rotation cover 5 can be removed directly.

[0030] The U-shaped rubber frame 7 is U-shaped in general. The outer side of the U-shaped rubber frame 7 is provided with a U-shaped slot located inside the truss fixing plate 2, and the U-shaped rubber frame 7 is locked inside the U-shaped slot. The U-shaped rubber frame 7 can prevent the U-shaped rubber frame 7 from rotating.

[0031] The outer surface of the tapered fixing rod 9 fits against the inner wall of the through hole 8, and the tapered fixing rod 9 and the through hole 8 are slidably connected; this structure can prevent the tapered fixing rod 9 from shaking, thereby ensuring the stability of the fixed anti-rotation cover 5.

[0032] 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 illustrative 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. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A steel structural truss comprising a steel structural truss body (1), characterized by: The steel structure truss body (1) front and back end surface both sides are fixedly provided with a truss fixed plate (2), the truss fixed plate (2) outer surface both sides are provided with a bolt through hole (3), the bolt through hole (3) is inserted with bolt (4), the bolt (4) hexagonal bolt head outside is provided with fixed anti-rotation cover (5), the fixed anti-rotation cover (5) towards the face of the nearest bolt through hole (3) is provided with hexagonal groove (6), and the bolt (4) hexagonal bolt head is inserted into the inside of hexagonal groove (6); The outer surface of the fixed anti-rotation cover (5) is provided with a through hole (8) on both sides, the through hole (8) is movably inserted with a tapered fixing rod (9), and the two through holes (8) on the same side of the outer surface of the fixed anti-rotation cover (5) are provided with a back-shaped rubber frame (7) fixed to the outer surface of the truss fixed plate (2).

2. A steel structural truss as claimed in claim 1, wherein: The outer surface of the tapered fixing rod (9) is provided with a circular groove (11) on one side, the inner wall of the circular groove (11) is provided with an insertion slot (12) extending into the inside of the tapered fixing rod (9), the insertion slot (12) is inserted with a push rod (13), the two sides of the face of the push rod (13) towards the nearest back-shaped rubber frame (7) are inclined surfaces (14), and one side of the inclined surface (14) is provided with a clamping block (15) slidably connected with the tapered fixing rod (9).

3. A steel structural truss as claimed in claim 2, wherein: The outer surface of the clamping block (15) is provided with a strip-shaped groove (16) on one side, the strip-shaped groove (16) contains a spring (17) in the inside, and the two ends of the spring (17) are respectively connected between the inside of the tapered fixing rod (9) and the inner wall of the strip-shaped groove (16).

4. A steel structural truss as claimed in claim 3, wherein: The distance between the front end face of the back-shaped rubber frame (7) and the rear end face of the hexagonal groove (6) is the same as the distance between the front end face of the push cap (10) and the rear end face of the clamping block (15), and the push cap (10) and the tapered fixing rod (9) are integrally made.

5. A steel structural truss as defined in claim 1, wherein: The back-shaped rubber frame (7) is back-shaped as a whole, the outer side of the back-shaped rubber frame (7) is provided with a back-shaped clamping groove located in the inside of the truss fixed plate (2), and the back-shaped rubber frame (7) is clamped in the inside of the back-shaped clamping groove.

6. A steel structural truss as defined in claim 1, wherein: The shape of the inner wall of the hexagonal groove (6) corresponds to the shape of the hexagonal bolt head of the bolt (4), and the outer surface of the hexagonal bolt head of the bolt (4) is fitted with the inner wall of the hexagonal groove (6).

7. A steel structural truss as defined in claim 1, wherein: The outer surface of the tapered fixing rod (9) is fitted with the inner wall of the through hole (8), and the tapered fixing rod (9) is slidably connected with the through hole (8).

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