A bridge steel structure support frame

Abstract

The present invention belongs to the technical field of bridge steel structures, and in particular, to a support frame for bridge steel structures. Aiming at the problems of the existing structure being relatively simple, unable to be adjusted arbitrarily, and the fixation being not tight enough, resulting in easy falling off and sliding, the following solution is proposed. It includes a fixed rod. Both sides of the top of the fixed rod are fixedly connected with racks. A sliding cover is slidably connected to the top of the fixed rod. A through rod is arranged through the top end of the sliding cover near the rack. Rotating components are installed on both sides inside the sliding cover, and the rotating components are slidably clamped with the racks. A connecting plate is vertically installed at the center inside the sliding cover. One side of the connecting plate is rotatably connected to the top of the fixed rod through a rotating wheel. A threaded rod is arranged through the center inside the sliding cover. A threaded ring is rotatably connected to the outer wall of the threaded rod near the top of the sliding cover. The present invention has the advantages of being able to conveniently adjust and move and preventing falling off and sliding.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge steel structures, and particularly relates to a support frame for bridge steel structures. Background Art

[0002] Steel structure bridges have been widely used in railways, highways, etc. Large steel structure bridges are generally assembled in the workshop and then transported out of the factory. Bridge types that combine steel plate girders and box girders with concrete, and those that combine orthotropic plate decks with box girders are widely used in large and medium-span bridges. During the splicing process of steel structure bridges, welding operations are inevitably carried out in all directions of the bridge. Before welding, a support frame is required.

[0003] The current bridge support frames have relatively simple structures. Usually, simple support blocks or bolts are used for fixed support, and the position of the support point cannot be freely adjusted according to the bending span. As a result, different fixing frames need to be set up when installing different mechanisms, which is costly and not convenient for installation and disassembly. Moreover, in the actual use process of traditional fixing frames, due to different angles, the equipment cannot be fixed tightly enough, easily resulting in unstable support and falling or sliding, thus threatening the safety of construction workers. Summary of the Invention

[0004] A support frame for bridge steel structures proposed by the present invention solves the problems that the traditional device has a relatively simple structure, cannot be adjusted arbitrarily, is not fixed tightly enough, and is prone to falling and sliding.

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

[0006] A support frame for bridge steel structures includes a fixed rod. Both sides of the top of the fixed rod are fixedly connected with racks. A sliding cover is slidably connected to the top of the fixed rod. A through rod is arranged through the top of the sliding cover near the racks. Rotating components are installed on both sides inside the sliding cover, and the rotating components are slidably engaged with the racks. A connecting plate is vertically installed at the center inside the sliding cover. One side of the connecting plate is rotatably connected to the top of the fixed rod through a rotating wheel. A threaded rod is arranged through the center inside the sliding cover. A threaded ring is rotatably connected to the outer wall of the threaded rod near the top of the sliding cover. The top of the threaded rod is rotatably connected to a rotating block. A plurality of pressing bolts are arranged around the outer wall of the threaded ring, and the pressing bolts penetrate the side wall of the threaded ring and are in contact with the threaded rod.

[0007] Preferably, the rotating assembly includes a worm, a driven gear and a driving gear. One end of the worm away from the through rod is rotatably connected to the sliding cover. The worm is rotatably and clamped with the rack. The driven gear is fixedly connected to one end of the worm close to the through rod. The driving gear is fixedly connected to the outer wall of the through rod. And the driven gear meshes with the driving gear.

[0008] Preferably, a support plate is fixedly connected to the top of the rotating block. The top surface of the support plate is provided with intersecting anti-slip patterns. And a plurality of fixing screws are rotatably connected inside the support plate.

[0009] Preferably, the bottom of the threaded ring is rotatably connected to the top of the sliding cover through a bearing. Both sides of the bottom of the sliding cover are slidably connected to the side wall of the fixed rod. A plurality of sliding grooves are circumferentially formed on the outer wall of the threaded rod. A clamping block corresponding to the sliding groove is formed inside the top end of the sliding cover. The sliding groove is slidably connected to the sliding cover through the clamping block.

[0010] Preferably, knobs are fixedly connected to both ends of the through rod through the inside of the sliding cover. And a rubber anti-slip ring is circumferentially arranged on the outer wall of the knob.

[0011] Preferably, fixing plates are horizontally fixedly connected to both sides of the bottom of the fixed rod. A plurality of threaded holes are formed inside the fixing plates. And connecting screws are rotatably connected inside the threaded holes.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. When in use, by rotating the knob, the through rod is driven to rotate, so that the driving gear rotates. Then the driving gear drives the driven gear to rotate, so that the driven gear drives the worm to rotate. Then, since the worm is slidably clamped with the rack, the sliding cover can be driven to move while the worm rotates. Thus, the threaded rod is driven to move by the sliding cover. And when in use, the threaded ring can be rotated, so that the threaded ring rotates with the threaded rod. Since the threaded rod is slidably connected to the sliding cover through the sliding groove, the threaded rod moves up and down. Thus, it can meet the support requirements of different bridge steel structures.

[0014] 2. After the adjustment is completed, by rotating the connecting screw inside the fixed plate, the connecting screw drives the fixed plate to be fixed to the support structure set by the user, and the fixed rod can be fixed by driving the fixed plate. Since the worm and the rack are slidably clamped with each other, the worm can form an interlocking structure with the teeth in the rack, and then the sliding cover can be fixed to prevent it from moving when the through rod is not rotated. Rotate the extrusion bolt, so that the extrusion bolt can penetrate the side wall of the threaded ring and fit tightly with the threaded rod, so that the threaded rod and the threaded ring are fixed to each other to prevent the threaded rod from rotating, and the fixing screw at the top can be rotated to be fixedly connected to the bridge component to prevent the support plate from sliding during support. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of a bridge steel structure support frame proposed by the present invention;

[0016] Figure 2 Side view of the internal structure of a bridge steel structure support frame proposed by the present invention;

[0017] Figure 3 Top view of the internal structure of a bridge steel structure support frame proposed by the present invention.

[0018] In the figure: 1, fixed rod; 2, rack; 3, sliding cover; 4, through rod; 401, knob; 5, rotating assembly; 501, worm; 502, driven gear; 503, driving gear; 6, connecting plate; 7, rotating wheel; 8, threaded rod; 801, sliding groove; 9, threaded ring; 10, rotating block; 11, support plate; 12, fixing screw; 13, extrusion bolt; 14, fixed plate; 15, connecting screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0020] Refer to Figures 1-3, a bridge steel structure support frame, including a fixed rod 1. On both sides of the top of the fixed rod 1, racks 2 are fixedly connected. A sliding cover 3 is slidably connected to the top of the fixed rod 1. A through rod 4 is arranged through the top of the sliding cover 3 near the rack 2. On both sides inside the sliding cover 3, rotating components 5 are installed, and the rotating components 5 are slidably engaged with the racks 2. A connecting plate 6 is vertically installed at the center inside the sliding cover 3. One side of the connecting plate 6 is rotatably connected to the top of the fixed rod 1 through a rotating wheel 7. A threaded rod 8 is arranged through the center inside the sliding cover 3. A threaded ring 9 is rotatably connected to the outer wall of the threaded rod 8 near the top of the sliding cover 3. The top of the threaded rod 8 is rotatably connected to a rotating block 10. A plurality of pressing bolts 13 are arranged around the outer wall of the threaded ring 9, and the pressing bolts 13 penetrate the side wall of the threaded ring 9 and are in contact with the threaded rod 8.

[0021] The rotating component 5 includes a worm 501, a driven gear 502, and a driving gear 503. One end of the worm 501 away from the through rod 4 is rotatably connected to the sliding cover 3. The worm 501 is rotatably engaged with the rack 2. The driven gear 502 is fixedly connected to one end of the worm 501 near the through rod 4. The driving gear 503 is fixedly connected to the outer wall of the through rod 4, and the driven gear 502 is meshed with the driving gear 503.

[0022] The top of the rotating block 10 is fixedly connected to a support plate 11, and the top surface of the support plate 11 is provided with intersecting anti-slip patterns, and a plurality of fixing screws 12 are rotatably connected inside the support plate 11.

[0023] The bottom of the threaded ring 9 is rotatably connected to the top of the sliding cover 3 through a bearing. The two sides of the bottom of the sliding cover 3 are slidably connected to the side wall of the fixed rod 1. A plurality of sliding grooves 801 are formed around the outer wall of the threaded rod 8. A clamping block corresponding to the sliding groove 801 is formed inside the top of the sliding cover 3. The sliding groove 801 is slidably connected to the sliding cover 3 through the clamping block.

[0024] Both ends of the through rod 4 penetrate the inside of the sliding cover 3 and are fixedly connected to a knob 401, and a rubber anti-slip ring is arranged around the outer wall of the knob 401.

[0025] On both sides of the bottom of the fixed rod 1, fixing plates 14 are horizontally fixedly connected. A plurality of threaded holes are formed inside the fixing plates 14, and connecting screws 15 are rotatably connected inside the threaded holes.

[0026] Working principle: During use, by rotating the knob 401, the through rod 4 is driven to rotate, thereby causing the driving gear 503 to rotate. Then, the driving gear 503 drives the driven gear 502 to rotate, so that the driven gear 502 drives the worm 501 to rotate. Since the worm 501 is slidably clamped with the rack 2, when the worm 501 rotates, it can drive the sliding cover 3 to move. Thus, the sliding cover 3 drives the threaded rod 8 to move. And during use, the threaded ring 9 can be rotated, so that the threaded ring 9 rotates relative to the threaded rod 8. Since the threaded rod 8 is slidably connected to the sliding cover 3 through the sliding groove 801, the threaded rod 8 moves up and down, and thus can meet the support requirements of different bridge steel structures. By rotating the connection screw inside the fixing plate 14, the connection screw 15 drives the fixing plate 14 to be fixed to the support structure set by the user, and the fixing rod 1 can be fixed by driving through the fixing plate 14. Since the worm 501 is slidably clamped with the rack 2, the worm 501 can form an interlocking structure with the teeth in the rack 2, and thus the sliding cover 3 can be fixed to prevent it from moving when the through rod 4 is not rotated. Rotate the pressing bolt 13, so that the pressing bolt 13 can penetrate the side wall of the threaded ring 9 and fit tightly with the threaded rod 8, thereby fixing the threaded rod 8 and the threaded ring 9 to prevent the threaded rod 8 from rotating. And the fixing screw 12 at the top can be rotated to fixedly connect it to the bridge component to prevent the support plate 11 from sliding during support.

[0027] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A bridge steel structure support frame, including a fixed rod (1), characterized in that, both sides of the top of the fixed rod (1) are fixedly connected with racks (2), the top of the fixed rod (1) is slidably connected with a sliding cover (3), a through rod (4) is arranged through the top end of the sliding cover (3) near the rack (2), both sides inside the sliding cover (3) are provided with rotating components (5), and the rotating components (5) are slidably clamped with the racks (2). A connecting plate (6) is vertically installed at the center inside the sliding cover (3), one side of the connecting plate (6) is rotatably connected with the top of the fixed rod (1) through a rotating wheel (7). A threaded rod (8) is arranged through the center inside the sliding cover (3), a threaded ring (9) is rotatably connected to the outer wall of the threaded rod (8) near the top end of the sliding cover (3), the top end of the threaded rod (8) is rotatably connected with a rotating block (10), a plurality of pressing bolts (13) are arranged around the outer wall of the threaded ring (9), and the pressing bolts (13) penetrate through the side wall of the threaded ring (9) and are in contact with the threaded rod (8); The rotating component (5) includes a worm (501), a driven gear (502) and a driving gear (503). One end of the worm (501) away from the through rod (4) is rotatably connected with the sliding cover (3), the worm (501) is rotatably clamped with the rack (2), the driven gear (502) is fixedly connected with one end of the worm (501) close to the through rod (4), the driving gear (503) is fixedly connected with the outer wall of the through rod (4), and the driven gear (502) is meshed with the driving gear (503); The bottom of the threaded ring (9) is rotatably connected with the top of the sliding cover (3) through a bearing, both sides of the bottom of the sliding cover (3) are slidably connected with the side wall of the fixed rod (1). A plurality of sliding grooves (801) are arranged around the outer wall of the threaded rod (8), and a clamping block corresponding to the sliding grooves (801) is arranged inside the top end of the sliding cover (3). The sliding grooves (801) are slidably connected with the sliding cover (3) through the clamping block; Both ends of the through rod (4) penetrate through the inside of the sliding cover (3) and are fixedly connected with knobs (401), and a rubber anti-slip ring is arranged around the outer wall of the knobs (401).

2. A bridge steel structure support frame according to claim 1, characterized in that, the top of the rotating block (10) is fixedly connected with a support plate (11), and the top surface of the support plate (11) is provided with intersecting anti-slip lines, and a plurality of fixing screws (12) are rotatably connected inside the support plate (11).

3. A bridge steel structure support frame according to claim 1, characterized in that, both sides of the bottom of the fixed rod (1) are horizontally and fixedly connected with fixing plates (14), a plurality of threaded holes are arranged inside the fixing plates (14), and connecting screws (15) are rotatably connected inside the threaded holes.

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