Ramp bridge anti-overturning device

Abstract

The present invention belongs to the field of bridge technology, in particular to an anti-overturning device for a ramp bridge. Aiming at the problem that the existing anti-overturning ability is weak and there is a risk of overturning, the following scheme is proposed, which includes a bridge foundation, a bridge pier integrally processed on the top of the bridge foundation, and a ramp bridge plate bolted to the top of the bridge pier, and the surface bolts of the bridge pier are connected to a transmission box; both sides of the top of the surface of the bridge pier are hinged with a support frame, the bottom end of the support frame is hinged with an articulated frame, the end of the support frame away from the articulated frame is hinged with a stabilizing frame, the top of the stabilizing frame is hinged to the bottom end of the ramp bridge plate, the adjusting mechanism stabilizes the ramp bridge plate through the guidance of a wire rope and a pulley frame, the adjusting mechanism can drive the articulated frame to move through the transmission mechanism, the articulated frame can drive the stabilizing frame to move through the support frame, the stabilizing frame can support and stabilize the ramp bridge plate, and provide multi-position and multi-angle support and stability for the ramp bridge plate, thereby enhancing its anti-overturning ability.

Description

Technical Field

[0001] The present invention relates to the technical field of bridges, and in particular to an anti-overturning device for a ramp bridge. Background Art

[0002] The patent with application number 202010221051.2 discloses a construction method for negative bending moment notches of bridge slabs with small radius curve ramps. The construction method for negative bending moment notches of bridge slabs with small radius curve ramps adopts the method of passing the tensioning notches reserved in the box girder through the top plate of the box girder, so that the bottom of the tensioning notch is in a hollow state, which completely solves the problem of obstruction of the bottom of the tensioning notch to tensioning equipment such as jacks during the tensioning process. Since the reserved notch is sealed by the hanging mold method, the concrete there is cast and formed in one time, which solves the problem of excessive contact area between new and old concrete and loose contact resulting in concrete stratification in traditional construction methods.

[0003] However, the construction method of the negative bending moment notch of the small-radius curved ramp bridge slab also has some problems. For example, the linear curvature of the ramp may be larger, and the steel structure and steel-concrete composite beam structure have weaker anti-overturning ability after being compressed on one side. In particular, most existing bridges are single-pier structures, and overloaded vehicles are rampant. The ramp bridge has weak anti-overturning ability and is at risk of overturning. Summary of the Invention

[0004] Based on the technical problem that the background technology has weak anti-overturning ability and is prone to overturning crisis, the present invention proposes an anti-overturning device for a ramp bridge.

[0005] The present invention proposes an anti-overturning device for a ramp bridge, comprising a bridge foundation, a bridge pier integrally machined on the top of the bridge foundation, and a ramp bridge plate bolted to the top of the bridge pier, wherein the surface of the bridge pier is bolted to a transmission box;

[0006] Both sides of the top of the bridge pier surface are hinged with support frames, the bottom end of the support frame is hinged with an articulated frame, the end of the support frame away from the articulated frame is hinged with a stabilizing frame, and the top end of the stabilizing frame is hinged with the bottom end of the ramp bridge plate;

[0007] Steel wire ropes are bolted to both sides of the top of the bridge foundation, and the pulley frames are slidingly connected to the surfaces of the steel wire ropes. The top of the pulley frame is rotatably connected to the bottom of the ramp bridge deck. An adjustment mechanism is rotatably sleeved inside the transmission box. The adjustment mechanism is entangled with the steel wire ropes. The axis of the adjustment mechanism is bolted to a transmission mechanism, which is hinged to the articulated frame. The adjustment mechanism stabilizes the ramp bridge deck through the guidance of the steel wire ropes and the pulley frames. The adjustment mechanism can drive the articulated frame to move through the transmission mechanism, and the articulated frame can drive the stabilizing frame to move through the supporting frame. The stabilizing frame can support and stabilize the ramp bridge deck, provide multi-position and multi-angle support and stability for the ramp bridge deck, and enhance its anti-overturning ability.

[0008] Preferably, the adjustment mechanism includes a driving worm, a worm gear, a winding wheel and a transmission assembly;

[0009] The worm gear is connected with the gear of the transmission box through the bearing, so that the two worm gears on both sides rotate in the opposite direction, and the worm gear on the left side rotates counterclockwise, and the worm gear on the right side rotates clockwise, and the worm gear can drive the take-up wheel to rotate, and the take-up wheel is rotated by the bearing and the transmission box to ensure the stability of the rotation of the take-up wheel, and the take-up wheel can collect the wire rope downward.

[0010] Preferably, the transmission assembly includes a driving gear, a passive gear, a passive worm and a gear assembly;

[0011] The surface of the active worm is located inside the transmission case and is bolted to the axis of the active gear. The top of the active gear meshes with the teeth of the passive gear. The axis of the passive gear is bolted to the surface of the passive worm. The surface of the passive worm is rotatably sleeved with the internal part of the transmission case. The two ends of the passive worm are respectively meshed with the tops of the two worm wheel disks. The passive worm is bolted to the gear assembly. The active worm can drive the active gear to rotate, the active gear can drive the passive gear to rotate, and the passive gear can drive the passive worm to rotate. The passive worm is rotated with the transmission case through a bearing to ensure the stability of the passive worm. The active worm and the passive worm rotate in opposite directions, so that the passive worm can drive the worm wheel disk to rotate, disperse the pressure of the active worm, and the passive worm can drive the two main bevel gears to rotate.

[0012] Preferably, the gear assembly includes a main bevel gear and a secondary bevel gear;

[0013] There are two main bevel gears and two secondary bevel gears. The axis of the two main bevel gears is bolted to the surface of the driven worm. The teeth of the main bevel gears are engaged with the teeth of the secondary bevel gears. The secondary bevel gears are bolted to the transmission mechanism. The driven worm can drive the two main bevel gears to rotate, and the main bevel gear can drive the secondary bevel gear to rotate. The two secondary bevel gears rotate in the same direction, and the secondary bevel gears can drive the transmission mechanism to rotate.

[0014] Preferably, both ends of the active worm are integrally processed with square rods, and the surface of the square rod is provided with a handwheel, which is located on the side of the winding wheel. The structure of the square rod facilitates the rotation of the handwheel after insertion. The square structure of the square rod can be used to limit the handwheel and the square rod, and it is also convenient to remove the handwheel.

[0015] Preferably, the transmission mechanism includes a rotating shaft, a transmission gear, a connecting gear and a driving component;

[0016] There are two rotating shafts and two transmission gears. The bottom end of the rotating shaft is bolted to the axis of the secondary bevel gear, and the top end of the rotating shaft is bolted to the axis of the transmission gear. There are four connecting gears. The two sides of the transmission gear are respectively engaged with the teeth of the two connecting gears. The connecting gear is bolted to the driving assembly. The secondary bevel gear can drive the rotating shaft to rotate, the rotating shaft can drive the transmission gear to rotate, the transmission gear can drive the connecting gear to rotate, the two transmission gears drive the four connecting gears to rotate, each transmission gear drives the two connecting gears to rotate, the four connecting gears rotate in the same direction, and the connecting gear can drive the driving assembly to rotate.

[0017] Preferably, the driving assembly includes a screw rod and a transmission bar;

[0018] There are four screw rods. The bottom end of the screw rod is bolted to the axis of the connecting gear, the surface of the screw rod is threadedly connected to the screw hole of the transmission bar, and the top ends of the two articulated frames are hinged to the surface of the transmission bar. The connecting gear can drive the screw rod to rotate, the screw rod can drive the transmission bar to move downward, and the transmission bar can drive the two articulated frames to move downward.

[0019] Preferably, the internal bolts of the transmission box are connected to a support plate, the bottom end of the rotating shaft surface is rotatably sleeved with the hole of the support plate, the top end of the rotating shaft is rotatably sleeved with the inside of the transmission box, the support plate is used to rotatably support the rotating shaft, the rotating shaft is rotatably arranged with the support plate through the bearing to ensure the smooth rotation of the rotating shaft, and the rotating shaft is rotatably arranged with the transmission box through the bearing to ensure the smooth rotation of the rotating shaft.

[0020] Preferably, the bottom end of the screw rod surface is rotatably socketed with the inner part of the transmission box, the top end of the screw rod passes through the hole in the top of the transmission box and is rotatably socketed with the top end of the bridge pier surface, the rear side of the transmission bar is slidably connected with the surface of the bridge pier, the screw rod is rotatably arranged with the transmission box through a bearing to ensure the smooth rotation of the screw rod, and the screw rod extends to the top of the transmission box to facilitate its connection with the transmission bar, the screw rod is rotatably arranged with the bridge pier through a support to ensure the smooth rotation of the screw rod, and the transmission bar is slidably arranged with the bridge pier through a slide rail to guide the bridge pier.

[0021] Preferably, the support frame is a triangular frame, and the two articulated frames are in an eight-shaped structure. The support frame is located on the rear side of the wire rope, and the wire rope is in a U-shaped structure. The structure of the support frame can utilize its structure to enhance its stability, and can effectively support the ramp bridge plate and disperse the pressure of the ramp bridge plate. The shape of the articulated frame facilitates the transmission mechanism to drive the support frame to rotate through the articulated frame, and the wire rope is guided into a U-shaped structure by the pulley frame.

[0022] The beneficial effects of the present invention are as follows: the adjusting mechanism stabilizes the ramp bridge plate through the guidance of the wire rope and the pulley frame, the adjusting mechanism can drive the articulated frame to move through the transmission mechanism, the articulated frame can drive the stabilizing frame to move through the supporting frame, the stabilizing frame can support and stabilize the ramp bridge plate, and provide multi-position and multi-angle support and stability for the ramp bridge plate, thereby enhancing its anti-overturning ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic front view of the structure of a ramp bridge anti-overturning device proposed by the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of a transmission box of an anti-overturning device for a ramp bridge proposed by the present invention;

[0025] Figure 3 This is a schematic diagram of the right side structure of an active worm gear of an anti-overturning device for a ramp bridge proposed by the present invention;

[0026] Figure 4 This is a schematic diagram of the three-dimensional structure of a worm gear disc of an anti-overturning device for a ramp bridge proposed by the present invention;

[0027] Figure 5 This is a three-dimensional schematic diagram of the rotating shaft of the ramp bridge anti-overturning device proposed by the present invention.

[0028] In the figure: 1. Bridge foundation; 2. Adjustment mechanism; 21. Driving worm; 22. Worm gear; 23. Winding wheel; 24. Driving gear; 25. Passive gear; 26. Passive worm; 27. Main bevel gear; 28. Secondary bevel gear; 3. Transmission mechanism; 31. Rotating shaft; 32. Transmission gear; 33. Connecting gear; 34. Screw; 35. Transmission bar; 4. Bridge pier; 5. Ramp bridge plate; 6. Transmission box; 7. Articulated frame; 8. Support frame; 9. Stabilizing frame; 10. Pulley frame; 11. Wire rope. DETAILED DESCRIPTION

[0029] The present invention will be further explained below with reference to specific embodiments.

[0030] Example

[0031] refer to Figure 1-5In this embodiment, a ramp bridge anti-overturning device is proposed, including a bridge foundation 1, a bridge pier 4 integrally processed on the top of the bridge foundation 1, and a ramp bridge plate 5 bolted to the top of the bridge pier 4, and a transmission box 6 bolted to the surface of the bridge pier 4; both sides of the top of the surface of the bridge pier 4 are hinged with a support frame 8, the bottom end of the support frame 8 is hinged with an articulated frame 7, and the end of the support frame 8 away from the articulated frame 7 is hinged with a stabilizing frame 9, and the top of the stabilizing frame 9 is hinged to the bottom end of the ramp bridge plate 5; both sides of the top of the bridge foundation 1 are bolted with a steel wire rope 11, the surface of the steel wire rope 11 is slidably connected to a pulley frame 10, and the top of the pulley frame 10 is rotatably connected to the bottom of the ramp bridge plate 5 The support frame 8 is a triangular frame, and the two articulated frames 7 are in an eight-shaped structure. The support frame 8 is located at the rear side of the wire rope 11. The wire rope 11 is in a U-shaped structure. The structure of the support frame 8 can utilize its structure to enhance its stability, and can effectively support the ramp bridge plate 5 and disperse the pressure of the ramp bridge plate 5. The shape of the articulated frame 7 is convenient for the transmission mechanism 3 to drive the support frame 8 to rotate through the articulated frame 7. The wire rope 11 is guided into a U-shaped structure by the pulley frame 10. The internal rotation of the transmission box 6 is sleeved with an adjusting mechanism 2, which is wound around the wire rope 11. The axis of the adjusting mechanism 2 is bolted with a transmission mechanism 3, which is hinged to the articulated frame 7. The adjusting mechanism 2 includes an active worm 21, The worm gear 22, the winding wheel 23 and the transmission assembly; the surface of the active worm 21 is rotatably sleeved with the interior of the transmission box 6, and both ends of the active worm 21 extend to the outside of the transmission box 6. There are two worm gears 22 and two winding wheels 23. The axis of the winding wheel 23 is rotatably connected to the side of the transmission box 6. The surface of the winding wheel 23 is bolted to the rear side of the worm gear 22. The interior of the winding wheel 23 is wound around the end of the wire rope 11 away from the bridge foundation 1. The bottom of the worm gear 22 is meshed with the surface of the active worm 21. The active worm 21 is bolted to the transmission assembly. The transmission assembly meshes with the worm gear 22, and the active worm 21 is rotated. The active worm 21 rotates with the transmission box 6 through the bearing. The active setting ensures the smooth rotation of the active worm 21. The active worm 21 can drive the two worm gear discs 22 to rotate. The teeth on both sides of the active worm 21 are in opposite directions, so that the active worm 21 can drive the two worm gear discs 22 to rotate in opposite directions, driving the worm gear disc 22 on the left to rotate counterclockwise and the worm gear disc 22 on the right to rotate clockwise. The worm gear disc 22 can drive the winding wheel 23 to rotate. The winding wheel 23 is rotated through the bearing and the transmission box 6 to ensure the smooth rotation of the winding wheel 23. The winding wheel 23 can reel the wire rope 11 downward. The active worm 21 can drive the transmission assembly to rotate. The transmission assembly includes a driving gear 24, a passive gear 25, a passive worm 26 and a gear assembly.The surface of the active worm 21 is located inside the transmission case 6 and is bolted to the axis of the active gear 24. The top of the active gear 24 is engaged with the teeth of the passive gear 25. The axis of the passive gear 25 is bolted to the surface of the passive worm 26. The surface of the passive worm 26 is rotatably sleeved inside the transmission case 6. The two ends of the passive worm 26 are respectively engaged with the tops of the two worm wheels 22. The passive worm 26 is bolted to the gear assembly. The active worm 21 can drive the active gear 24 to rotate, the active gear 24 can drive the passive gear 25 to rotate, and the passive gear 25 can drive the passive worm 26 to rotate. The passive worm 26 is connected to the gear assembly by bolts. 6 is rotated by the bearing and the transmission box 6 to ensure the smooth rotation of the passive worm 26. The active worm 21 and the passive worm 26 rotate in opposite directions, so that the passive worm 26 can drive the worm wheel 22 to rotate, dissipating the pressure of the active worm 21. The passive worm 26 can drive the gear assembly to rotate. The gear assembly includes a main bevel gear 27 and a sub-bevel gear 28; the number of the main bevel gear 27 and the sub-bevel gear 28 are both two. The axis of the two main bevel gears 27 are bolted to the surface of the passive worm 26. The teeth of the main bevel gear 27 mesh with the teeth of the sub-bevel gear 28. The sub-bevel gear 28 is bolted to the transmission mechanism 3. The movable worm 26 can drive the two main bevel gears 27 to rotate, and the main bevel gear 27 can drive the auxiliary bevel gear 28 to rotate. The two auxiliary bevel gears 28 rotate in the same direction, and the auxiliary bevel gear 28 can drive the transmission mechanism 3 to rotate. The structure of the square rod is convenient for the handwheel to be inserted and rotated. The square structure of the square rod can be used to limit the handwheel and the square rod, and it is also convenient to remove the handwheel. The transmission mechanism 3 includes a rotating shaft 31, a transmission gear 32, a connecting gear 33 and a driving component; the number of the rotating shaft 31 and the transmission gear 32 are both two, the bottom end of the rotating shaft 31 is bolted to the axis of the auxiliary bevel gear 28, and the top end of the rotating shaft 31 is connected to the transmission gear 32. The shaft is bolted together, and there are four connecting gears 33. The two sides of the transmission gear 32 are respectively engaged with the teeth of the two connecting gears 33. The connecting gear 33 is bolted to the driving assembly. The secondary bevel gear 28 can drive the rotating shaft 31 to rotate, and the rotating shaft 31 can drive the transmission gear 32 to rotate. The transmission gear 32 can drive the connecting gear 33 to rotate. The two transmission gears 32 drive the four connecting gears 33 to rotate. Each transmission gear 32 drives two connecting gears 33 to rotate. The four connecting gears 33 rotate in the same direction. The connecting gear 33 can drive the driving assembly to rotate. The driving assembly includes a screw rod 34 and a transmission bar 35.The number of screw rods 34 is four, and the bottom end of the screw rod 34 is bolted to the axis of the connecting gear 33, and the surface of the screw rod 34 is threadedly connected to the screw hole of the transmission bar 35. The top ends of the two hinged frames 7 are hinged to the surface of the transmission bar 35, and the connecting gear 33 can drive the screw rod 34 to rotate, and the screw rod 34 can drive the transmission bar 35 to move downward, and the transmission bar 35 can drive the two hinged frames 7 to move downward. The internal bolts of the transmission box 6 are connected with a support plate, and the bottom end of the surface of the rotating shaft 31 is rotatably sleeved with the hole of the support plate, and the top end of the rotating shaft 31 is rotatably sleeved with the internal rotation of the transmission box 6. The support plate is used to support the rotation of the rotating shaft 31, and the rotating shaft 31 is rotatably arranged with the support plate through the bearing to ensure the smooth rotation of the rotating shaft 31. The rotating shaft 31 is rotatably arranged with the transmission box 6 through the bearing to ensure the smooth rotation of the rotating shaft 31. The bottom end of the surface of the screw rod 34 is rotatably sleeved with the internal rotation of the transmission box 6, and the top of the screw rod 34 The hole at the top of the transmission box 6 is rotatably connected to the top of the bridge pier 4. The rear side of the transmission bar 35 is slidably connected to the surface of the bridge pier 4. The screw rod 34 is rotatably arranged with the transmission box 6 through the bearing to ensure the smooth rotation of the screw rod 34. After the screw rod 34 extends to the top of the transmission box 6, it is convenient for it to be connected with the transmission bar 35. The screw rod 34 is rotatably arranged with the bridge pier 4 through the support to ensure the smooth rotation of the screw rod 34. The transmission bar 35 is slidably arranged with the bridge pier 4 through the slide rail to guide the bridge pier 4. The adjustment mechanism 2 stabilizes the ramp bridge plate 5 through the guidance of the wire rope 11 and the pulley frame 10. The adjustment mechanism 2 can drive the articulated frame 7 to move through the transmission mechanism 3. The articulated frame 7 can drive the stabilizing frame 9 to move through the supporting frame 8. The stabilizing frame 9 can support and stabilize the ramp bridge plate 5, providing multi-position and multi-angle support and stability for the ramp bridge plate 5, thereby enhancing its anti-overturning ability.

[0032] Working principle: Insert the handwheel into one end of the active worm 21 and rotate the active worm 21. The active worm 21 is rotated through the bearing and the transmission box 6 to ensure the stability of the rotation of the active worm 21. The active worm 21 can drive the two worm gears 22 to rotate. The teeth on both sides of the active worm 21 have opposite directions, so that the active worm 21 can drive the two worm gears 22 to rotate in opposite directions, driving the worm gear 22 on the left to rotate counterclockwise and the worm gear 22 on the right to rotate clockwise. The worm gear 22 can drive the winding wheel 23 to rotate, and the winding wheel 23 is rotated. The winding wheel 23 is rotated by the bearing and the transmission box 6 to ensure the stability of the rotation. The winding wheel 23 can reel the wire rope 11 downward, and the wire rope 11 can slide inside the pulley frame 10 and generate a downward force on the pulley frame 10. The pulley frame 10 can generate a downward supporting and stable force on the ramp bridge plate 5. The active worm 21 can drive the active gear 24 to rotate, and the active gear 24 can drive the passive gear 25 to rotate. The passive gear 25 can drive the passive worm 26 to rotate. The passive worm 26 is rotated by the bearing and the transmission box 6. , to ensure the stability of the rotation of the passive worm 26, the active worm 21 and the passive worm 26 rotate in opposite directions, so that the passive worm 26 can drive the worm wheel 22 to rotate, dispersing the pressure of the active worm 21, the passive worm 26 can drive the two main bevel gears 27 to rotate, the main bevel gear 27 can drive the secondary bevel gear 28 to rotate, the two secondary bevel gears 28 rotate in the same direction, the secondary bevel gear 28 can drive the rotating shaft 31 to rotate, the rotating shaft 31 can drive the transmission gear 32 to rotate, the transmission gear 32 can drive the connecting gear 33 to rotate, the two The transmission gear 32 drives four connecting gears 33 to rotate, and each transmission gear 32 drives two connecting gears 33 to rotate. The four connecting gears 33 rotate in the same direction. The connecting gear 33 can drive the screw rod 34 to rotate, and the screw rod 34 can drive the transmission bar 35 to move downward. The transmission bar 35 can drive the two articulated frames 7 to move downward. The articulated frame 7 can drive the support frame 8 to rotate, drive the support frame 8 on the left to rotate clockwise, and drive the support frame 8 on the right to rotate counterclockwise. The support frame 8 can drive the stabilizing frame 9 to support the ramp bridge plate 5 upward.

[0033] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A ramp bridge anti-overturning device, comprising a bridge foundation (1), a bridge pier (4) integrally processed on the top of the bridge foundation (1), and a ramp bridge plate (5) bolted to the top of the bridge pier (4), characterized in that: The surface of the bridge pier (4) is bolted to a transmission box (6); Both sides of the top end of the bridge pier (4) are hinged with support frames (8), the bottom end of the support frame (8) is hinged with an articulated frame (7), the end of the support frame (8) away from the articulated frame (7) is hinged with a stabilizing frame (9), and the top end of the stabilizing frame (9) is hinged with the bottom end of the ramp bridge plate (5); Both sides of the top of the bridge foundation (1) are bolted to steel wire ropes (11), the surface of the steel wire ropes (11) is slidably connected to a pulley frame (10), the top of the pulley frame (10) is rotatably connected to the bottom of the ramp bridge plate (5), the interior of the transmission box (6) is rotatably sleeved with an adjustment mechanism (2), the adjustment mechanism (2) is entangled with the steel wire ropes (11), the axis of the adjustment mechanism (2) is bolted to a transmission mechanism (3), and the transmission mechanism (3) is hinged to the hinge frame (7); The regulating mechanism (2) comprises an active worm (21), a worm wheel (22), a winding wheel (23) and a transmission assembly; The surface of the active worm (21) is rotatably sleeved with the interior of the transmission case (6), both ends of the active worm (21) extend to the outside of the transmission case (6), the number of the worm wheel (22) and the number of the winding wheel (23) are both two, the axis of the winding wheel (23) is rotatably connected to the side of the transmission case (6), the surface of the winding wheel (23) is bolted to the rear side of the worm wheel (22), the interior of the winding wheel (23) is wound around the end of the wire rope (11) away from the bridge foundation (1), the bottom of the worm wheel (22) is meshed with the surface of the active worm (21), the active worm (21) is bolted to the transmission assembly, and the transmission assembly is meshed with the worm wheel (22); The transmission assembly includes a driving gear (24), a driven gear (25), a driven worm (26) and a gear assembly; The surface of the active worm (21) is located inside the transmission case (6) and is bolted to the axis of the active gear (24). The top of the active gear (24) is meshed with the teeth of the passive gear (25). The axis of the passive gear (25) is bolted to the surface of the passive worm (26). The surface of the passive worm (26) is rotatably sleeved with the inside of the transmission case (6). The two ends of the passive worm (26) are respectively meshed with the tops of the two worm wheels (22). The passive worm (26) is bolted to the gear assembly. The gear assembly includes a main bevel gear (27) and a secondary bevel gear (28); The number of the main bevel gear (27) and the number of the auxiliary bevel gear (28) are both two, the axis of the two main bevel gears (27) are connected to the surface of the passive worm (26) by bolts, the teeth of the main bevel gear (27) are meshed with the teeth of the auxiliary bevel gear (28), and the auxiliary bevel gear (28) is connected to the transmission mechanism (3) by bolts; Both ends of the active worm (21) are integrally machined with square rods, and the surface of the square rods is provided with a hand wheel, which is located on the side of the winding wheel (23); The transmission mechanism (3) comprises a rotating shaft (31), a transmission gear (32), a connecting gear (33) and a driving assembly; The number of the rotating shaft (31) and the number of the transmission gear (32) are both two, the bottom end of the rotating shaft (31) is bolted to the axis of the secondary bevel gear (28), the top end of the rotating shaft (31) is bolted to the axis of the transmission gear (32), the number of the connecting gears (33) is four, the two sides of the transmission gear (32) are respectively engaged with the teeth of the two connecting gears (33), and the connecting gear (33) is bolted to the driving assembly; The driving assembly includes a screw rod (34) and a transmission bar (35); The number of the screw rods (34) is four, the bottom end of the screw rod (34) is bolted to the axis of the connecting gear (33), the surface of the screw rod (34) is threadedly connected to the screw hole of the transmission bar (35), and the top ends of the two hinged frames (7) are hinged to the surface of the transmission bar (35).

2. The ramp bridge anti-overturning device according to claim 1, characterized in that: The internal bolts of the transmission box (6) are connected to a support plate, the bottom end of the surface of the rotating shaft (31) is rotatably sleeved with the hole of the support plate, and the top end of the rotating shaft (31) is rotatably sleeved with the interior of the transmission box (6).

3. The ramp bridge anti-overturning device according to claim 1, characterized in that: The bottom end of the surface of the screw rod (34) is rotatably sleeved with the interior of the transmission box (6), the top end of the screw rod (34) passes through the hole in the top of the transmission box (6) and is rotatably sleeved with the top end of the surface of the bridge pier (4), and the rear side of the transmission bar (35) is slidably connected with the surface of the bridge pier (4).

4. The ramp bridge anti-overturning device according to claim 1, characterized in that: The support frame (8) is a triangular frame, and the two hinged frames (7) are in an "eight" structure. The support frame (8) is located at the rear side of the steel wire rope (11), and the steel wire rope (11) is in a U-shaped structure.

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