Anti-deformation bridge steel structure

Abstract

The anti-deformation bridge steel structure comprises a bridge steel structure body, four first clamping grooves are annularly formed in the inner wall of the bridge steel structure body, openings are formed in the front sides and the rear sides of the first clamping grooves, reinforcing plates are movably installed in the first clamping grooves in a clamped mode, and a cylinder is arranged in the bridge steel structure body; through cooperation of the reinforcing plates and the cylinders, the interior of the bridge steel structure body is supported, and the four reinforcing plates are sleeved with the cylinders in a sliding mode. Through the arrangement of a series of structures, the interior of the bridge steel structure main body can be reinforced and supported through the four reinforcing plates and the cylinders, the anti-deformation effect can be effectively achieved in cooperation with injected structural adhesive, and the four reinforcing plates can be adjusted according to the inner diameter of the bridge steel structure main body; and the device can be suitable for bridge steel structure bodies with different inner diameters, manual cutting operation is not needed, the application range is widened, and the use flexibility is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge steel structures, in particular to an anti-deformation bridge steel structure. Background Art

[0002] Bridge steel is a steel plate specially used for building railway or highway bridges. It is required to have high strength, toughness, and be able to withstand the load and impact of locomotives and vehicles, and to have good fatigue resistance, certain low-temperature toughness and atmospheric corrosion resistance. Bridge steel is also divided into rectangular steel and cylindrical steel. Rectangular steel is mostly used for bridge construction and load-bearing purposes, while cylindrical steel is often used for bridge guardrails due to its aesthetics. At present, most cylindrical bridge steels used in the market are simple cylindrical tubes. They are often deformed and damaged by vehicle collisions, with poor strength and high maintenance costs. The damaged guardrails can only be recycled. Therefore, a deformation-resistant bridge steel structure is needed. For this purpose, a search by a new search agency shows that the announcement number: CN219527315U discloses an deformation-resistant bridge steel structure. A central tube is provided inside the outer tube. The reinforcing ribs include longitudinal reinforcing rib plates, glue outlet holes, central support tubes and splicing teeth. The central support tube is arranged at the center of the inner part of the outer tube body. There are four longitudinal reinforcing rib plates distributed in a cross shape on the outer side of the central support tube. Each longitudinal reinforcing rib plate is provided with a splicing tooth at one end of the outer side. The four splicing teeth are respectively slidably plugged into the inside of four splicing grooves provided on the inner wall of the outer tube body. A plurality of glue outlet holes are equidistantly provided on the central reinforcing rib, and a plurality of lateral reinforcing rib plates are equidistantly provided on the central reinforcing rib. The inner part of the outer tube body is filled with structural glue. During the production process of the device, structural glue is injected into the inner part of the central support tube by strong pressure, and the overflowing structural glue can be completely filled into the inner part of the outer tube body through the glue outlet holes and the liquid guide grooves, thus completing the fixing operation. During use, the internal central reinforcing rib can provide effective anti-deformation support, which is more practical.

[0003] The above patent discloses an anti-deformation bridge steel structure, which can reinforce the bridge steel structure by adding a central reinforcement rib inside the outer tube body and fixing it with structural adhesive, thereby achieving an effective anti-deformation support effect. However, it still has some shortcomings during use. The outer size of the central reinforcement rib is fixed, and the scope of application is limited, so it can only be applied to outer tube bodies of the same specification. When the inner diameter of the outer tube body is smaller than the outer size of the central reinforcement rib during processing, the central reinforcement rib needs to be cut, which is inconvenient to operate. For this reason, the present application proposes an anti-deformation bridge steel structure. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an anti-deformation bridge steel structure.

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

[0006] A deformation-resistant bridge steel structure includes a bridge steel structure main body, wherein four first slots are provided in an annular shape on the inner wall of the bridge steel structure main body, the front and rear sides of the first slots are both set as openings, a reinforcement plate is movably mounted in the first slot, a cylinder is provided in the bridge steel structure main body, and the interior of the bridge steel structure main body is supported by the cooperation of the reinforcement plate and the cylinder, the cylinder is slidably sleeved on the four reinforcement plates, a circular frame is embedded and fixed at the front end of the cylinder, a plurality of first casting holes are provided at the four corners of the circular frame, a plurality of second casting holes are provided in an annular shape on the outer side of the cylinder, and the second casting holes are connected to the corresponding first casting holes. Structural adhesive can be injected into the main body of the bridge steel structure through the first pouring hole and the second pouring hole. Four screws are installed on the outer side of the cylinder in a circular rotation. The reinforcing plate is threaded on the corresponding screw. The screw is connected to the corresponding reinforcing plate in a threaded manner, which can drive the corresponding reinforcing plate to move while the screw rotates. The end of the screw close to the circular frame extends into the circular frame. The end of the four screws is movably clamped with a detachable co-drive mechanism, which can drive the four screws synchronously. The same friction damping mechanism is installed on the outer side of the screw and the inner wall of the circular frame, which can lock the screw.

[0007] Preferably, the detachable co-driving mechanism includes a circular mounting frame movably mounted in the circular frame, and a square groove with an opening on the front side is opened at one end of the screw rod close to the circular mounting frame. A square rod is movably mounted in the square groove, and when the square rod rotates, the screw rod can be driven to rotate by the corners of the square groove. The circular mounting frame is rotatably sleeved on the four square rods, and the end of the square rod away from the corresponding screw rod is fixedly connected to a first bevel gear, and the front sides of the four first bevel gears are meshed with the same second bevel gear. The second bevel gear and the four first bevel gears cooperate to drive the four square rods to rotate synchronously, and the front side of the second bevel gear is fixedly connected to a T-shaped rotating rod, and the front side of the T-shaped rotating rod extends to the front side of the steel structure body of the bridge. The T-shaped rotating rod is rotatably mounted on the inner walls on both sides of the circular mounting frame, and the two opposite first bevel gears are symmetrically arranged.

[0008] Preferably, the friction damping mechanism includes a hard rubber friction sleeve fixedly mounted on the screw, a first rubber friction sleeve is adhesively fixed to the inner walls of the four sides of the circular frame, the first rubber friction sleeve is movably mounted on the corresponding screw, and the sides of the two opposite hard rubber friction sleeves that are away from each other are in close contact with the corresponding first rubber friction sleeves respectively. The friction force between the hard rubber friction sleeve and the first rubber friction sleeve is used to fix the screw, thereby improving the stability of the screw when it is not rotating.

[0009] Preferably, a rectangular hole is provided at the front end of the cylinder, the inner wall of the rectangular hole is fixedly connected to the outer side of the circular frame, through holes are provided on the four inner walls of the rectangular hole, a first bearing is fixedly installed in the through hole, the inner side of the inner ring of the first bearing is fixedly connected to the outer side of the corresponding screw, a first through hole with an opening on the front side is provided on the four inner walls of the circular frame, the screw is located in the corresponding first through hole and does not contact the inner wall of the first through hole, and the first through hole is used for the corresponding screw to pass through.

[0010] Preferably, the front inner wall of the hard rubber friction sleeve and the front inner wall of the first rubber friction sleeve are both provided with a second through-hole with openings on both sides, the second through-hole is aligned with the corresponding square rod, and the second through-hole can be used for the corresponding square rod to pass through.

[0011] Preferably, circular holes are opened on the inner walls of the four sides of the circular mounting frame, and a second bearing is fixedly sleeved in the circular hole. The inner side of the inner ring of the second bearing is fixedly connected to the outer side of the corresponding square rod, and the second bearing serves to provide a rotatable installation for the corresponding square rod.

[0012] Preferably, both sides of the circular mounting frame are fixedly connected with a clamping block, and the inner walls on both sides of the circular frame are provided with a second clamping slot with an opening on the front side. The clamping block is movably mounted in the corresponding second clamping slot. By cooperating with the clamping block and the second clamping slot, the position of the circular mounting frame can be restricted to avoid the situation where the circular mounting frame rotates during the adjustment of the reinforcement plate.

[0013] Compared with the existing technology, the beneficial effects of the utility model are:

[0014] 1. The reinforcement plate, the cylinder and the first slot cooperate to support and reinforce the interior of the bridge steel structure. In addition, by coordinating the circular frame, the first pouring hole and the second pouring hole, structural adhesive can be added to the interior of the bridge steel structure, thereby fixing the reinforcement plate and the cylinder inside the bridge steel structure, achieving effective support and reinforcement of the bridge steel structure, thereby achieving the effect of preventing deformation.

[0015] 2. By cooperating with the screw, square groove and detachable co-driving mechanism, the four reinforcement plates can be contracted or expanded synchronously according to the inner diameter of the bridge steel structure body, so that the reinforcement plates and cylinders can be supported inside the bridge steel structure body with different inner diameters, thereby improving the scope of application and flexibility of use. In addition, with the setting of the friction damping mechanism, the screw can be fixed after rotation adjustment, which improves the stability after adjustment. In addition, the detachable co-driving mechanism can be disassembled after use and can be reused, thereby improving its utilization rate.

[0016] The utility model, through the arrangement of a series of structures, can reinforce and support the interior of the steel structure main body of the bridge through four reinforcing plates and cylinders, and can effectively achieve the anti-deformation effect by cooperating with the injected structural adhesive. The four reinforcing plates can be adjusted according to the inner diameter of the steel structure main body of the bridge, so that it can be suitable for steel structure main bodies of bridges with different inner diameters, without the need for personnel to perform cutting operations, thereby improving the scope of application and flexibility of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of an anti-deformation bridge steel structure proposed by the utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure;

[0019] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of part A;

[0020] Figure 4 for Figure 2 A schematic cross-sectional view of the structure of the detachable co-drive mechanism in the middle after removal;

[0021] Figure 5 This is a three-dimensional structural diagram of the columns, reinforcement plates and circular frame connectors of an anti-deformation bridge steel structure proposed by the utility model.

[0022] In the figure: 100, main body of the bridge steel structure; 1, first slot; 2, reinforcement plate; 3, cylinder; 4, second casting hole; 5, screw; 6, circular frame; 7, square rod; 8, square slot; 9, first bevel gear; 10, second bevel gear; 11, T-shaped rotating rod; 12, first rubber friction sleeve; 13, hard rubber friction sleeve; 14, through hole; 15, clamping block; 16, first casting hole; 17, second slot; 18, circular mounting frame. DETAILED DESCRIPTION

[0023] 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.

[0024] Reference Figure 1-5A deformation-resistant bridge steel structure includes a bridge steel structure main body 100. Four first card slots 1 are annularly opened on the inner wall of the bridge steel structure main body 100. The front and rear sides of the first card slots 1 are both set as openings. A reinforcing plate 2 is movably mounted in the first card slot 1. A cylinder 3 is provided in the bridge steel structure main body 100. The reinforcing plate 2 and the cylinder 3 cooperate to support the interior of the bridge steel structure main body 100. The cylinder 3 is slidably sleeved on the four reinforcing plates 2. The front end of the cylinder 3 A circular frame 6 is embedded and fixed, wherein a rectangular hole is opened at the front end of the cylinder 3, and the inner wall of the rectangular hole is fixedly connected to the outer side of the circular frame 6. A through hole 14 is opened on the inner wall of the four sides of the rectangular hole, and the inner wall of the through hole 14 is in movable contact with the outer side of the corresponding reinforcement plate 2. The through hole 14 is used for the corresponding reinforcement plate 2 to pass through. A plurality of first casting holes 16 are opened at the four corners of the circular frame 6, and a plurality of second casting holes 4 are opened in a ring shape on the outer side of the cylinder 3. The second casting holes 4 are in contact with the corresponding first The pouring holes 16 are connected, and structural glue can be injected into the interior of the bridge steel structure body 100 through the first pouring hole 16 and the second pouring hole 4. Four screws 5 are installed in an annular rotation on the outside of the cylinder 3, wherein a first bearing is fixedly installed in the through hole 14, and the inner side of the inner ring of the first bearing is fixedly connected to the outer side of the corresponding screw 5. The first bearing serves to provide a corresponding screw 5 for rotation and installation. The reinforcing plate 2 is threadedly sleeved on the corresponding screw 5, wherein a thread groove is provided on the side of the reinforcing plate 2 close to the circular frame 6 and is threadedly connected to the corresponding screw 5. The screw 5 and the corresponding reinforcing plate 2 are threadedly connected through the thread groove, and can drive the corresponding reinforcing plate 2 to move while the screw 5 rotates. One end of the screw 5 close to the circular frame 6 extends into the circular frame 6, and a first through-hole with an opening on the front side is provided on the inner wall of the four sides of the circular frame 6. The screw 5 is located in the corresponding first through-hole and does not contact the inner wall of the first through-hole. The first through-hole is used for the corresponding screw 5 to pass through;

[0025] The ends of the four screw rods 5 are movably carded with a detachable co-driving mechanism, which includes a circular mounting frame 18 movably carded in the circular frame 6, wherein both sides of the circular mounting frame 18 are fixedly connected with a card block 15, and the inner walls of both sides of the circular frame 6 are provided with a second card slot 17 with an opening on the front side. The card block 15 is movably carded with the corresponding second card slot 17, and the position of the circular mounting frame 18 can be restricted by cooperating with the card block 15 and the second card slot 17 to avoid the problem of the circular mounting frame 18 being in a state of ... In the process of the section reinforcement plate 2, the circular mounting frame 18 rotates with it. The end of the screw 5 close to the circular mounting frame 18 is provided with a square groove 8 with an opening on the front side. The square groove 8 is movably mounted with a square rod 7. When the square rod 7 rotates, the screw 5 can be driven to rotate by the corners of the square groove 8. The circular mounting frame 18 is rotatably sleeved on the four square rods 7. Circular holes are provided on the inner walls of the four sides of the circular mounting frame 18. A second bearing is fixedly sleeved in the circular hole. The inner ring of the second bearing The inner side is fixedly connected to the outer side of the corresponding square rod 7, and the second bearing plays the effect of providing the corresponding square rod 7 for rotational installation. The end of the square rod 7 away from the corresponding screw rod 5 is fixedly connected to the first bevel gear 9, and the two opposite first bevel gears 9 are symmetrically arranged. The front sides of the four first bevel gears 9 are meshed with the same second bevel gear 10. The second bevel gear 10 cooperates with the four first bevel gears 9 to drive the four square rods 7 to rotate synchronously. The front side of the second bevel gear 10 is fixedly connected to a T-shaped rotating rod 11, and the front side of the T-shaped rotating rod 11 extends to the front side of the bridge steel structure main body 100. The T-shaped rotating rod 11 is rotatably installed with the inner walls of the two sides of the circular mounting frame 18, wherein a support rod is fixedly connected between the inner walls of the two sides of the circular mounting frame 18, and a bearing hole is opened on the front side of the support rod. A mounting bearing is fixedly sleeved in the bearing hole. The inner side of the inner ring of the mounting bearing is fixedly connected to the outer side of the T-shaped rotating rod 11, and the mounting bearing and the support rod cooperate to support the T-shaped rotating rod 11;

[0026] The same friction damping mechanism is installed on the outer side of the screw 5 and the inner wall of the circular frame 6. The friction damping mechanism includes a hard rubber friction sleeve 13 fixedly mounted on the screw 5. The four inner walls of the circular frame 6 are bonded and fixed with a first rubber friction sleeve 12. The first rubber friction sleeve 12 is movably mounted on the corresponding screw 5. The two opposite hard rubber friction sleeves 13 are in close contact with the corresponding first rubber friction sleeve 12 on the sides away from each other. The friction between the hard rubber friction sleeve 13 and the first rubber friction sleeve 12 is used to fix the screw 5, thereby improving the stability of the screw 5 when it is not rotating. The front inner wall of the hard rubber friction sleeve 13 and the first rubber friction sleeve 12 are in close contact with each other. A second through-hole with openings on both sides is provided on the front inner wall of a rubber friction sleeve 12. The second through-hole is aligned with the corresponding square rod 7, and the second through-hole can be used for the corresponding square rod 7 to pass through. The utility model can reinforce and support the interior of the bridge steel structure body 100 through four reinforcing plates 2 and cylinders 3 through a series of structural settings. Combined with the injected structural glue, it can effectively achieve the anti-deformation effect, and the four reinforcing plates 2 can be adjusted according to the inner diameter of the bridge steel structure body 100, so that it can be suitable for bridge steel structure bodies 100 with different inner diameters, without the need for personnel to perform cutting operations, thereby improving the scope of application and flexibility of use.

[0027] Working principle: When in use, when the bridge steel structure body 100 is not reinforced, the reinforcement plate 2 and the corresponding first slot 1 are in a separated state, and the detachable co-driving mechanism and the circular frame 6 are in a separated state. When the bridge steel structure body 100 is reinforced to prevent deformation, the reinforcement plate 2 is aligned with the corresponding first slot 1, and the cylinder 3 is moved backward to drive the four reinforcement plates 2 to move into the corresponding first slots 1 respectively. The reinforcement plates 2 are clamped with the corresponding first slots 1, and the four reinforcement plates 2 are used to support and reinforce the interior of the bridge steel structure body 100;

[0028] If the outer diameter of the four reinforcing plates 2 is smaller or larger than the inner diameter of the bridge steel structure body 100, the reinforcing plates 2 cannot be clamped in the corresponding first clamping groove 1, and the outer diameter of the four reinforcing plates 2 needs to be adjusted. When adjusting, the four square rods 7 are aligned with the corresponding square grooves 8 respectively, and the circular mounting frame 18 is moved backward. The circular mounting frame 18 drives the four square rods 7 to be clamped in the corresponding square grooves 8 respectively. At the same time, the circular mounting frame 18 drives the two clamping blocks 15 to be clamped in the corresponding second clamping grooves 17 respectively. The mounting frame 18 is restricted. After being mounted, the T-shaped rotating rod 11 can be rotated. The T-shaped rotating rod 11 drives the second bevel gear 10 to rotate. The second bevel gear 10 drives the four first bevel gears 9 meshing with it to rotate. The first bevel gear 9 drives the corresponding square rod 7 to rotate. The square rod 7 drives the screw 5 to rotate through the corresponding square groove 8. The screw 5 drives the corresponding hard rubber friction sleeve 13 to rotate against the first rubber friction sleeve 12. Under the action of the threaded groove on the reinforcing plate 2, the two first bevel gears 9 relative to each other rotate. The arrangement is such that the two relative screw rods 5 rotate in opposite directions. When the screw rods 5 rotate, the two relative reinforcement plates 2 move in directions closer to or away from each other, and the four reinforcement plates 2 shrink inward or expand outward at the same time. When the outer diameter formed by the four reinforcement plates 2 is the same as the inner diameter of the circle formed by the four first slots 1, the rotation of the T-shaped rotating rod 11 can be stopped, and then the circular mounting frame 18 can be pulled forward to drive the four square rods 7 to move out of the corresponding square slots 8 respectively. At this time, the detachable synchronous driving mechanism is separated from the circular frame 6. Since the hard rubber friction sleeve 13 is in close contact with the corresponding first rubber friction sleeve 12 at this time, the friction between the hard rubber friction sleeve 13 and the corresponding first rubber friction sleeve 12 is utilized to prevent the screw rod 5 from rotating without external force, thereby improving the stability of the screw rod 5 after rotation, and the four reinforcement plates 2 can be synchronously contracted or expanded, so that it can be applied to bridge steel structure bodies 100 with different inner diameters, thereby improving the scope of application. When the outer diameter is large, no cutting operation is required, which facilitates the reinforcement operation of personnel.

[0029] After the reinforcement plate 2 is adjusted, the cylinder 3 can be moved backward to the bridge steel structure main body 100, and the cylinder 3 drives the four reinforcement plates 2 to be respectively clamped in the corresponding first card slots 1. At this time, the interior of the bridge steel structure main body 100 is supported and reinforced through the four reinforcement plates 2 scale UI. Then, structural glue can be poured into the circular frame 6, so that the structural glue flows into the bridge steel structure main body 100 through multiple first pouring holes 16 and second pouring holes 4 in sequence. When the structural glue solidifies, the four reinforcement plates 2 and the cylinder 3 are all fixed inside the bridge steel structure main body 100, and the interior of the bridge steel structure main body 100 is supported and reinforced. Combined with the elastic force of the filled structural glue, the deformation of the bridge steel structure main body 100 during use can be effectively reduced, achieving an effective anti-deformation effect. In addition, after the reinforcement plate 2 is adjusted, the detachable co-drive mechanism is detachable, which is convenient for subsequent reuse. Multiple structures only need to be configured with one detachable co-drive mechanism, thereby improving its utilization rate.

[0030] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A deformation-resistant bridge steel structure, comprising a bridge steel structure main body (100), characterized in that: The inner wall of the bridge steel structure main body (100) is provided with four first slots (1) in an annular shape, the front and rear sides of the first slots (1) are both set as openings, a reinforcing plate (2) is movably mounted in the first slots (1), a cylinder (3) is provided in the bridge steel structure main body (100), the cylinder (3) is slidably mounted on the four reinforcing plates (2), a circular frame (6) is fixedly mounted on the front end of the cylinder (3), a plurality of first casting holes (16) are opened at the four corners of the circular frame (6), and the outer side of the cylinder (3) is in the shape of A plurality of second pouring holes (4) are provided in a ring shape, and the second pouring holes (4) are communicated with the corresponding first pouring holes (16). Four screw rods (5) are installed on the outer side of the cylinder (3) in a ring-shaped rotation manner. The reinforcing plate (2) is threadedly sleeved on the corresponding screw rods (5). One end of the screw rod (5) close to the circular frame (6) extends into the circular frame (6). The ends of the four screw rods (5) are movably clamped with a detachable co-driving mechanism. The outer side of the screw rod (5) and the inner wall of the circular frame (6) are installed with the same friction damping mechanism.

2. The anti-deformation bridge steel structure according to claim 1, characterized in that: The detachable co-driving mechanism comprises a circular mounting frame (18) movably mounted in the circular frame (6); a square groove (8) with an opening at the front side is provided at one end of the screw rod (5) close to the circular mounting frame (18); a square rod (7) is movably mounted in the square groove (8); the circular mounting frame (18) is rotatably mounted on four square rods (7); one end of the square rod (7) away from the corresponding screw rod (5) is fixedly connected to a first bevel gear (9); the front sides of the four first bevel gears (9) are meshed with the same second bevel gear (10); the front side of the second bevel gear (10) is fixedly connected to a T-shaped rotating rod (11); the front side of the T-shaped rotating rod (11) extends to the front side of the bridge steel structure body (100); the T-shaped rotating rod (11) is rotatably mounted on the inner walls of both sides of the circular mounting frame (18); and the two opposite first bevel gears (9) are symmetrically arranged.

3. The anti-deformation bridge steel structure according to claim 1, characterized in that: The friction damping mechanism comprises a hard rubber friction sleeve (13) fixedly sleeved on the screw rod (5), a first rubber friction sleeve (12) bonded and fixed to the inner walls of the four sides of the circular frame (6), the first rubber friction sleeve (12) being movably sleeved on the corresponding screw rod (5), and the two opposite hard rubber friction sleeves (13) having sides away from each other in close contact with the corresponding first rubber friction sleeve (12).

4. The anti-deformation bridge steel structure according to claim 1, characterized in that: A rectangular hole is provided at the front end of the cylinder (3), the inner wall of the rectangular hole is fixedly connected to the outer side of the circular frame (6), through holes (14) are provided on the inner walls of the four sides of the rectangular hole, a first bearing is fixedly installed in the through hole (14), the inner side of the inner ring of the first bearing is fixedly connected to the outer side of the corresponding screw (5), the inner walls of the four sides of the circular frame (6) are provided with first through holes with an opening at the front side, the screw (5) is located in the corresponding first through hole and does not contact the inner wall of the first through hole.

5. The anti-deformation bridge steel structure according to claim 3, characterized in that: The front inner wall of the hard rubber friction sleeve (13) and the front inner wall of the first rubber friction sleeve (12) are both provided with a second through hole with openings on both sides, and the second through hole is aligned with the corresponding square rod (7).

6. The anti-deformation bridge steel structure according to claim 2, characterized in that: Circular holes are provided on the inner walls of the four sides of the circular mounting frame (18), and a second bearing is fixedly sleeved in the circular hole. The inner side of the inner ring of the second bearing is fixedly connected to the outer side of the corresponding square rod (7).

7. The anti-deformation bridge steel structure according to claim 2, characterized in that: Both sides of the circular installation frame (18) are fixedly connected with a clamping block (15), and the inner walls of both sides of the circular frame (6) are provided with a second clamping slot (17) with an opening at the front side, and the clamping block (15) is movably clamped with the corresponding second clamping slot (17).

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