CN112854011A

CN112854011A - Bridge is prevented falling with buffering combination formula protective structure

Info

Publication number: CN112854011A
Application number: CN202110327004.0A
Authority: CN
Inventors: 黄少聪
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-05-28
Also published as: CN114108498A

Abstract

The invention provides a buffering combined type protection structure for bridge falling prevention, and relates to the technical field of bridge falling prevention protection. This anti-falling buffer combined type protection structure for bridge, including two spliced poles, two be equipped with shrink subassembly, two between the spliced pole the spliced pole front side protection component, shrink subassembly sets up in the protection component front side, shrink subassembly includes the lead screw, the inside lead screw that is equipped with of spliced pole, the lead screw rotates with the spliced pole to be connected, lead screw both ends outside screw thread direction sets up oppositely, and this anti-falling buffer combined type protection structure for bridge falls on protection cloth when constructor accident falls, and people self gravity stimulates the pulling rope simultaneously to the pulling dwang rotates, makes the adapter sleeve rotate and carries out the rolling with the stay cord, stimulates the apron of spliced pole one side, makes the apron in the guard plate top, is favorable to avoiding personnel to fall and falls in the guard plate top accident and fall.

Description

Bridge is prevented falling with buffering combination formula protective structure

Technical Field

The invention relates to a road and a bridge, in particular to a buffering combined type protection structure for preventing a bridge from falling, and belongs to the technical field of bridge falling prevention.

Background

Bridge, generally refers to a structure erected on rivers, lakes and seas to enable vehicles, pedestrians and the like to smoothly pass through, in order to adapt to the modern high-speed developed traffic industry, bridges are also extended to be buildings which are erected to span mountains, unfavorable geology or meet other traffic needs to enable traffic to be more convenient, bridge protection devices are mostly of a protective fence structure, the protective fence is composed of concrete bricks or concrete blocks arranged at intervals and transverse bars connecting adjacent blocks, or is composed of transverse bars and vertical columns of a steel structure in a connected mode

However, in the construction process, the falling prevention is usually carried out in a mode of pulling a protection net, so that the falling prevention is not convenient enough when being erected, the operation of constructors is complex, and meanwhile, when the constructors fall accidentally, the constructors cannot be protected when falling off the construction bridge.

Disclosure of Invention

Technical problem to be solved

The invention aims to solve the problems, and provides a buffer combined type protection structure for preventing a bridge from falling, so as to solve the problems that in the prior art, a protection net is usually pulled for preventing falling, the erection is not convenient enough, the operation of constructors is complicated, and the extension of the constructors when the constructors fall accidentally cannot be protected.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a buffering combined type protection structure for bridge falling prevention comprises two connecting columns, a contraction assembly is arranged between the two connecting columns, protection assemblies are arranged on the front sides of the two connecting columns, and the contraction assembly is arranged on the front sides of the protection assemblies;

the contraction component comprises a screw rod, the screw rod is arranged in the connecting column and is rotationally connected with the connecting column, the outer side thread directions of two ends of the screw rod are opposite, the outer side of two ends of the screw rod is in threaded connection with a moving block, the outer side of the moving block is fixedly connected with a connecting ring, protective cloth is arranged between the two connecting columns, the outer sides of four corners of the protective cloth are fixedly connected with hanging ropes, the hanging ropes and the connecting ring are mutually hooked, the outer side of one of the screw rod is fixedly connected with a worm wheel, one side of the worm wheel is meshed and connected with a worm, the worm penetrates through the connecting column and is rotationally connected with the connecting column, two ends of the worm are fixedly connected with a second belt wheel, the bottom of one connecting column is fixedly connected with a first telescopic rod, the bottom of, the utility model discloses a lead screw, including connecting block, horizontal pole through connection piece, belt, first pulley, spliced pole, connecting post, belt, second pulley and first pulley, connecting block one side is equipped with the horizontal pole, horizontal pole through connection piece rotates with the connecting block to be connected, horizontal pole both ends fixedly connected with gyro wheel, the first pulley of the outside fixedly connected with in horizontal pole both ends, spliced pole one side is equipped with the third pulley, the cover is equipped with the belt between third pulley and second pulley and the first pulley, another the lead screw outside fixedly connected with second bevel gear, one of them the spliced pole is equipped with the round bar, the round bar runs through spliced pole one side and rotates with the spliced pole to be.

Preferably, the third belt wheel is connected with a connecting frame in a rotating mode on the outer side, a second telescopic rod is fixedly connected to the top of the connecting frame, and a connecting plate is fixedly connected to the top of the second telescopic rod.

Preferably, connecting plate fixed connection is in spliced pole one side, second telescopic link outside cover is equipped with the second spring, second spring fixed connection is between connecting plate and connecting frame, stimulates the connecting frame through the second spring to the messenger keeps the belt to be in transmission state, avoids droing.

Preferably, the protection component comprises a fixing frame, one side of the two connecting columns opposite to each other is rotatably connected with a fixing frame, one side of the fixing frame is fixedly connected with a transverse block, one side of the connecting columns is fixedly connected with a supporting plate, one outer side of the fixing frame is fixedly connected with a second gear, one side of the second gear is meshed with a first gear, the first gear is meshed with the second gear, a protection plate is arranged between the two fixing frames and is in sliding connection with the connecting columns, a rotating rod is arranged inside the protection plate and penetrates through the protection plate and is rotatably connected with the protection plate, the outer sides of two ends of the rotating rod are fixedly connected with convex blocks, the inner wall of the protection plate is fixedly connected with a plurality of pulling ropes, the other ends of the pulling ropes are fixedly connected to the outer, adapter sleeve and dwang sliding connection, two it is connected with the lid net to rotate between the spliced pole, lid net one side fixedly connected with fourth spring, fourth spring one end fixedly connected with extension board, extension board fixed connection is in spliced pole one side, fixedly connected with stay cord between lid net and two adapter sleeves.

Preferably, fixed frame and guard plate one side all are seted up flutedly, fixed frame top fixedly connected with diaphragm, four links of guard plate one side fixedly connected with are favorable to through the link, set up protection cloth in the guard plate top to further protect.

Preferably, diaphragm bottom fixedly connected with third telescopic link, third telescopic link bottom fixedly connected with fixture block, the mutual adaptation of fixture block and recess is favorable to through the adaptation of fixture block and recess, fixes the guard plate fast, and the convenient dismantlement of installing is carried out.

Preferably, a third spring is sleeved on the outer side of the third telescopic rod and fixedly connected between the clamping block and the transverse plate.

Preferably, the outer sides of the two connecting columns are fixedly connected with connecting discs, and one side of each connecting disc is rotatably connected with a connecting seat.

Preferably, connection pad one side fixedly connected with card axle, the arc wall has been seted up in the connecting seat outside, the card axle sets up inside the arc wall, card axle and connecting seat sliding connection set up in inside the arc wall through the card axle to restrict the spliced pole and avoid the spliced pole to outwards rotate, the personnel of suing and labouring of being convenient for simultaneously are rescued.

Preferably, two connecting seat one side fixedly connected with curb plate, the connecting seat top is equipped with the bolt, the bolt runs through the connecting seat and with connecting seat threaded connection.

The invention provides a buffer combined type protection structure for preventing a bridge from falling, which has the following beneficial effects:

1. this anti-falling of bridge is with buffering combination formula protective structure, the worm rotates through the worm wheel that the meshing is connected, thereby make the inside lead screw of spliced pole rotate, thereby make two movable blocks of one of them lead screw outside threaded connection carry out relative movement, thereby make movable block outside fixed connection's go-between expand protective cloth one side of hookup, thereby fix the connecting seat with the bolt, make the connecting seat contact with ground, thereby the extrusion gyro wheel, make the gyro wheel shrink through the connecting block, guarantee the fixed state of guard plate, be favorable to the installation more swift, be convenient for expand protective cloth, and is simple and convenient to operate.

2. This anti-falling of bridge is with buffering combination formula protective structure, first gear revolve makes the guard plate rotate and makes fixed frame rotate simultaneously, thereby make the guard plate overturn in the bridge outside, thereby play the effect of protection, avoid constructor to fall, fall in the protection cloth top when constructor accident falls, people self gravity will stimulate the rope simultaneously, thereby the pulling dwang rotates, make the adapter sleeve rotate and carry out the rolling with the stay cord, with the lid net pulling of spliced pole one side, make the lid net lid in the guard plate top, be favorable to avoiding personnel to fall and fall in the guard plate top accident.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a rear view of the present invention;

FIG. 3 is a schematic cross-sectional view of a connecting column of the present invention;

fig. 4 is a schematic view of the fixing frame structure of the present invention.

FIG. 5 is an enlarged view of portion A of FIG. 3 according to the present invention.

FIG. 6 is a schematic view of a retraction assembly according to the present invention.

FIG. 7 is an enlarged view of the portion B of FIG. 1 according to the present invention.

FIG. 8 is a schematic view of the structure of the protection plate of the present invention.

Fig. 9 is a schematic view of the connecting seat structure of the present invention.

FIG. 10 is an enlarged view of the portion C of FIG. 8 according to the present invention.

In the figure: 1. connecting columns; 2. a screw rod; 3. a moving block; 4. a connecting ring; 5. protective cloth; 6. hanging a rope; 7. a worm gear; 8. a worm; 9. a first telescopic rod; 10. a first spring; 11. connecting blocks; 12. a roller; 13. a cross bar; 14. a first pulley; 15. a second pulley; 16. a third belt pulley; 17. a connecting frame; 18. a second telescopic rod; 19. a second spring; 20. a connecting plate; 21. a fixing frame; 22. a protection plate; 23. a round bar; 24. a first gear; 25. a first bevel gear; 26. a second bevel gear; 27. a transverse plate; 28. a clamping block; 29. a third telescopic rod; 30. a third spring; 32. a support plate; 33. a fourth spring; 34. covering a net; 35. rotating the rod; 36. connecting sleeves; 37. pulling a rope; 38. pulling the rope; 39. a support plate; 40. a transverse block; 41. a connecting disc; 42. a connecting seat; 43. a bolt; 44. clamping a shaft; 45. a second gear.

Detailed Description

The embodiment of the invention provides a buffer combined type protection structure for preventing a bridge from falling.

Referring to fig. 1, 2, 3, 5, 6 and 7, the device includes two connecting columns 1, a shrinking component is disposed between the two connecting columns 1, a protecting component is disposed at the front side of the two connecting columns 1, and the shrinking component is disposed at the front side of the protecting component;

the contraction component comprises a screw rod 2, a screw rod 2 is arranged in a connecting column 1, the screw rod 2 is rotationally connected with the connecting column 1, the directions of external threads at two ends of the screw rod 2 are opposite, the external threads at two ends of the screw rod 2 are all in threaded connection with a movable block 3, the external side of the movable block 3 is fixedly connected with a connecting ring 4, a protective cloth 5 is arranged between the two connecting columns 1, the external sides of four corners of the protective cloth 5 are fixedly connected with hanging ropes 6, the hanging ropes 6 are mutually hooked with the connecting ring 4, the external side of one screw rod 2 is fixedly connected with a worm wheel 7, one side of the worm wheel 7 is engaged and connected with a worm 8, the worm 8 penetrates through the connecting columns 1 and is rotationally connected with the connecting column 1, two ends of the worm 8 are both fixedly connected with second belt wheels 15, the bottom of one connecting column 1, connecting block 11 one side is equipped with horizontal pole 13, horizontal pole 13 run through connecting block 11 and rotate with connecting block 11 and be connected, horizontal pole 13 both ends fixedly connected with gyro wheel 12, the first band pulley 14 of horizontal pole 13 both ends outside fixedly connected with, 1 one side of spliced pole is equipped with third band pulley 16, the cover is equipped with the belt between third band pulley 16 and second band pulley 15 and the first band pulley 14, 2 outside fixedly connected with second bevel gear 26 of another lead screw, one of them spliced pole 1 is equipped with round bar 23, round bar 23 runs through spliced pole 1 one side and rotates with spliced pole 1 and be connected, the first bevel gear 25 of round bar 23 one end fixedly connected with, first bevel gear 25 is connected with second bevel gear 26 meshing. The outer side of the third belt wheel 16 is rotatably connected with a connecting frame 17, the top of the connecting frame 17 is fixedly connected with a second telescopic rod 18, and the top of the second telescopic rod 18 is fixedly connected with a connecting plate 20. Connecting plate 20 fixed connection is in spliced pole 1 one side, and the cover is equipped with second spring 19 in the 18 outside covers of second telescopic link, and second spring 19 fixed connection is between connecting plate 20 and linking frame 17, stimulates linking frame 17 through second spring 19 to the messenger keeps the belt to be in transmission state, avoids droing.

Specifically, when the device is installed, one of the connecting bases is placed at the edge of a bridge, the connecting bases 42 is aligned with the ground through the side plates, the connecting base is fixed with the ground through the bolts 43, one of the connecting bases 1 is fixed, at the moment, the other connecting base 1 is moved through the roller 12 arranged on the other connecting base 1, so that the connecting base 1 is convenient to install, meanwhile, the roller 12 rotates to drive the cross rod 13 to rotate, so that the second belt wheel 15, the first belt wheel 14 and the third belt wheel 16 are driven through the belt, so that the second belt wheel 15 drives the worm 8 to rotate, the worm 8 rotates through the worm wheel 7 connected in a meshing manner, so that the screw rod 2 inside the connecting base 1 rotates, so that the two moving blocks 3 in threaded connection outside one of the screw rods 2 move relatively, so that the connecting ring 4 fixedly connected outside the moving blocks 3 unfolds one side of the hooked protective cloth 5, thereby fix connecting seat 42 with bolt 43, make connecting seat 42 and ground contact to extrusion gyro wheel 12 makes gyro wheel 12 contract through connecting block 11, guarantees the fixed state of guard plate 22, is favorable to the installation more swift, is convenient for expand simple operation with protection cloth 5.

Referring to fig. 1, 2, 3, 4, 7 and 10 again, the protection assembly includes a fixing frame 21, one side of each of two connecting posts 1 is rotatably connected with the fixing frame 21, one side of the fixing frame 21 is fixedly connected with a cross block 40, one side of each of the connecting posts 1 is fixedly connected with a support plate 39, the outer side of one of the fixing frames 21 is fixedly connected with a second gear 45, one side of the second gear 45 is connected with a first gear 24 in a meshing manner, the first gear 24 is connected with the second gear 45 in a meshing manner, a protection plate 22 is arranged between the two fixing frames 21, the protection plate 22 is slidably connected with the connecting posts 1, a rotating rod 35 is arranged inside the protection plate 22, the rotating rod 35 penetrates through the protection plate 22 and is rotatably connected with the protection plate 22, the outer sides of two ends of the rotating rod 35 are fixedly connected with convex blocks, the inner wall, connecting sleeves 36 are arranged on the outer sides of two ends of each connecting sleeve 36, the connecting sleeves 36 are connected with the rotating rod 35 in a sliding mode, a cover net 34 is connected between the two connecting columns 1 in a rotating mode, a fourth spring 33 is fixedly connected to one side of the cover net 34, a supporting plate 32 is fixedly connected to one end of the fourth spring 33, the supporting plate 32 is fixedly connected to one side of the connecting columns 1, and pull ropes 37 are fixedly connected between the cover net 34 and the two connecting sleeves 36. Fixed frame 21 and guard plate 22 one side all are seted up flutedly, and fixed frame 21 top fixedly connected with diaphragm 27, four links of guard plate 22 one side fixedly connected with are favorable to through the link, set up protection cloth 5 in guard plate 22 top to further protect. Diaphragm 27 bottom fixedly connected with third telescopic link 29, third telescopic link 29 bottom fixedly connected with fixture block 28, the mutual adaptation of fixture block 28 and recess is favorable to through the adaptation of fixture block 28 and recess, carries out quick fixed, convenient installation dismantlement with guard plate 22. The outer side of the third telescopic rod 29 is sleeved with a third spring 30, and the third spring 30 is fixedly connected between the clamping block 28 and the transverse plate 27. Two connecting seats 42 one side fixedly connected with curb plate, connecting seat 42 top is equipped with bolt 43, and bolt 43 runs through connecting seat 42 and with connecting seat 42 threaded connection.

Specifically, the inner sides of the two connecting posts 1 are rotatably connected with the fixed frames 21, the protection plate 22 is inserted between the two fixed frames 21, the fixture block 28 is pulled simultaneously, the fixture block 28 is inserted into the grooves formed in the fixed frames 21 and the protection plate 22, so that the connecting posts 1 can be fixed quickly, the connecting sleeve 36 on the pull rope 37 fixedly connected with one side of the cover net 34 is sleeved outside the rotating rod 35, the protruding block is arranged outside the rotating rod 35 and is clamped with the connecting sleeve 36, meanwhile, the hanging rope 6 around the protection cloth 5 passes through the hook, so that the protection cloth 5 is arranged on the top of the protection plate 22, meanwhile, the round rod 23 is rotated to rotate the first bevel gear 25 to rotate the second bevel gear 26, so that the moving block 3 is separated, meanwhile, the first gear 24 is rotated to rotate the protection plate 22 to rotate the fixed frames 21, so that the protection plate 22 is, avoid constructor to fall, fall in protection cloth 5 top when constructor accident falls, people self gravity will pull rope 38 simultaneously and stimulate to pulling dwang 35 rotates, makes adapter sleeve 36 rotate and carries out the rolling with stay cord 37, with the pulling of the lid net 34 of spliced pole 1 one side, makes lid net 34 lid in protection plate 22 top, is favorable to avoiding personnel to fall and falls in protection plate 22 top accident.

Referring to fig. 1, 2, 3, 4 and 9 again, the outer sides of the two connecting posts 1 are fixedly connected with connecting discs 41, and one side of each connecting disc 41 is rotatably connected with a connecting seat 42. Connection pad 41 one side fixedly connected with card axle 44, the arc wall has been seted up in the connecting seat 42 outside, and card axle 44 sets up inside the arc wall, and card axle 44 and connecting seat 42 sliding connection set up in inside the arc wall through calorie axle 44 to restrict to spliced pole 1 and avoid spliced pole 1 to outwards rotate, the personnel of being convenient for to rescue simultaneously rescue.

When rescuing the personnel, the connecting column 1 is pulled to enable the connecting disc 41 to rotate around the connecting seat 42, and meanwhile, the clamping shaft 44 on the connecting disc 41 moves in the arc-shaped groove, so that the connecting column 1 is limited, the connecting column 1 is prevented from being turned on one side, and the personnel can be conveniently rescued.

The working principle is as follows: fixing the connecting seat 42 with the ground by using the bolt 43, fixing one connecting column 1, moving the other connecting column 1 at the moment, driving the cross rod 13 to rotate when the roller 12 rotates, so that the second belt wheel 15, the first belt wheel 14 and the third belt wheel 16 are driven by a belt, so that the second belt wheel 15 drives the worm 8 to rotate, the worm 8 rotates through the worm wheel 7 connected in a meshing manner, so that the screw rod 2 in the connecting column 1 rotates, so that the connecting seat 42 is in contact with the ground, so that the roller 12 is extruded, so that the roller 12 is contracted through the connecting block 11, the fixing state of the protection plate 22 is ensured, simultaneously, connecting fixed frames 21 are rotatably connected on the inner sides of the two connecting columns 1, the protection plate 22 is inserted between the two fixed frames 21, the fixture block 28 is pulled at the same time, and the fixture block 28 is inserted into grooves formed in, dwang 35 outside is located to adapter sleeve 36 cover on 34 one side fixed connection's of lid stay cord 37 simultaneously, with protection cloth 5 rope 6 that hangs all around passes the couple, thereby set up protection cloth 5 in protection plate 22 top, protection plate 22 overturns in the bridge outside, fall in protection cloth 5 top when constructor accident falls, people self gravity will pull rope 38 and stimulate simultaneously, thereby pulling dwang 35 and rotating, make adapter sleeve 36 rotate and carry out the rolling with stay cord 37, with the 34 pulling of lid net on 1 one side of spliced pole, make lid net 34 cover in protection plate 22 top.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a bridge is prevented falling with buffering combination formula protective structure, includes two spliced poles (1), its characterized in that: a contraction component is arranged between the two connecting columns (1), a protective component is arranged on the front side of the two connecting columns (1), and the contraction component is arranged on the front side of the protective component;

the contraction component comprises a lead screw (2), the lead screw (2) is arranged inside the connecting column (1), the lead screw (2) is rotatably connected with the connecting column (1), the thread directions of the outer sides of the two ends of the lead screw (2) are opposite, the outer sides of the two ends of the lead screw (2) are both in threaded connection with movable blocks (3), the outer sides of the movable blocks (3) are fixedly connected with connecting rings (4), protective cloth (5) is arranged between the two connecting columns (1), hanging ropes (6) are fixedly connected with the outer sides of four corners of the protective cloth (5), the hanging ropes (6) are mutually hooked with the connecting rings (4), one worm wheel (7) is fixedly connected with the outer side of the lead screw (2), a worm (8) is meshed with one side of the worm wheel (7), the worm (8) penetrates through the connecting column (1) and is rotatably connected with the connecting column (1), and second belt wheels (15, wherein a first telescopic rod (9) is fixedly connected to the bottom of one connecting column (1), a connecting block (11) is fixedly connected to the bottom of the first telescopic rod (9), a first spring (10) is fixedly connected between the connecting block (11) and the connecting column (1), a cross rod (13) is arranged on one side of the connecting block (11), the cross rod (13) penetrates through the connecting block (11) and is rotatably connected with the connecting block (11), rollers (12) are fixedly connected to the two ends of the cross rod (13), a first belt wheel (14) is fixedly connected to the outer sides of the two ends of the cross rod (13), a third belt wheel (16) is arranged on one side of the connecting column (1), a belt is sleeved between the third belt wheel (16) and the first belt wheel (14), another second bevel gear (26) is fixedly connected to the outer side of the screw rod (2), one of the connecting columns (1) is provided with a round, the round bar (23) penetrates through one side of the connecting column (1) and is rotationally connected with the connecting column (1), a first bevel gear (25) is fixedly connected with one end of the round bar (23), and the first bevel gear (25) is meshed with a second bevel gear (26).

2. The buffer combined type protection structure for bridge fall prevention of claim 1, which is characterized in that: the outer side of the third belt wheel (16) is rotatably connected with a connecting frame (17), the top of the connecting frame (17) is fixedly connected with a second telescopic rod (18), and the top of the second telescopic rod (18) is fixedly connected with a connecting plate (20).

3. The buffer combined type protection structure for bridge fall prevention of claim 2, wherein: connecting plate (20) fixed connection is in spliced pole (1) one side, second telescopic link (18) outside cover is equipped with second spring (19), second spring (19) fixed connection is between connecting plate (20) and linking frame (17).

4. The buffer combined type protection structure for bridge fall prevention of claim 1, which is characterized in that: the protection component comprises a fixed frame (21), two fixed frames (21) are connected to one side of the connecting column (1) in a rotating mode, a transverse block (40) is fixedly connected to one side of the fixed frame (21), a supporting plate (39) is fixedly connected to one side of the connecting column (1), one of the supporting plate and the supporting plate is fixedly connected to the outer side of the fixed frame (21), a first gear (24) is connected to one side of the second gear (45) in a meshing mode, the first gear (24) is connected with the second gear (45) in a meshing mode, a protection plate (22) is arranged between the two fixed frames (21), the protection plate (22) is in sliding connection with the connecting column (1), a rotating rod (35) is arranged inside the protection plate (22), the rotating rod (35) penetrates through the protection plate (22) and is connected with the protection plate (22) in a rotating mode, guard plate (22) inner wall fixedly connected with pulls a plurality of ropes (38), and is a plurality of pull rope (38) other end winding fixed connection is in the adapter sleeve (36) outside, adapter sleeve (36) both ends outside is equipped with adapter sleeve (36), adapter sleeve (36) and dwang (35) sliding connection, two it is connected with lid net (34) to rotate between spliced pole (1), lid net (34) one side fixedly connected with fourth spring (33), fourth spring (33) one end fixedly connected with extension board (32), extension board (32) fixed connection is in spliced pole (1) one side, fixedly connected with stay cord (37) between lid net (34) and two adapter sleeve (36).

5. The buffer combined type protection structure for bridge fall prevention of claim 4, wherein: the fixing frame is characterized in that one side of the fixing frame (21) and one side of the protection plate (22) are provided with grooves, the top of the fixing frame (21) is fixedly connected with a transverse plate (27), and one side of the protection plate (22) is fixedly connected with four hanging rings.

6. The buffer combined type protection structure for bridge fall prevention of claim 5, wherein: the bottom of the transverse plate (27) is fixedly connected with a third telescopic rod (29), the bottom of the third telescopic rod (29) is fixedly connected with a clamping block (28), and the clamping block (28) is matched with the groove.

7. The buffer combined type protection structure for bridge fall prevention of claim 6, wherein: and a third spring (30) is sleeved on the outer side of the third telescopic rod (29), and the third spring (30) is fixedly connected between the clamping block (28) and the transverse plate (27).

8. The buffer combined type protection structure for bridge fall prevention of claim 1, which is characterized in that: the outer sides of the two connecting columns (1) are fixedly connected with connecting discs (41), and one side of each connecting disc (41) is rotatably connected with a connecting seat (42).

9. The buffer combined type protection structure for bridge fall prevention of claim 8, wherein: the connecting disc (41) one side fixedly connected with card axle (44), the arc wall has been seted up in connecting seat (42) outside, card axle (44) set up in the arc inside the groove, card axle (44) and connecting seat (42) sliding connection.

10. The buffer combined type protection structure for bridge fall prevention of claim 8, wherein: two connecting seat (42) one side fixedly connected with curb plate, connecting seat (42) top is equipped with bolt (43), bolt (43) run through connecting seat (42) and with connecting seat (42) threaded connection.